/* ===== CSS 变量 ===== */
:root {
    --primary: #0EA5E9;
    --primary-dark: #0284C7;
    --primary-light: #7DD3FC;
    --primary-gradient: linear-gradient(135deg, #0EA5E9, #38BDF8);
    --accent: #00CEC9;
    --accent-dark: #00B5B0;

    --bg-main: #F3F4F8;
    --bg-sidebar: #1E1E2E;
    --bg-card: #FFFFFF;
    --bg-hover: #F0F0F5;

    --text-dark: #2D3436;
    --text-medium: #636E72;
    --text-light: #B2BEC3;
    --text-sidebar: #A4A6B3;
    --text-sidebar-active: #FFFFFF;

    --border-color: #1C2A45;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    --level-basic: #00B894;
    --level-basic-bg: #E8F8F5;
    --level-medium: #FDA434;
    --level-medium-bg: #FFF4E6;
    --level-advanced: #E74C3C;
    --level-advanced-bg: #FDEDEC;
    --level-starter: #0EA5E9;
    --level-starter-bg: #EFEBFD;
    --level-workbuddy: #0984E3;
    --level-workbuddy-bg: #E2F0FB;
    --level-trae: #00CEC9;
    --level-trae-bg: #E0FAFA;
    --level-chatgpt: #10A37F;
    --level-chatgpt-bg: #E1F5EC;
    --level-codex: #2D3436;
    --level-codex-bg: #ECEEF0;
    --level-xiaoyunque: #FF7675;
    --level-xiaoyunque-bg: #FDE8E7;
    --level-xingliu: #FDCB6E;
    --level-xingliu-bg: #FEF6E0;

    --sidebar-width: 240px;
    --topbar-height: 64px;
}

/* ===== 全局重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-main);
    color: var(--text-dark);
    overflow: hidden;
    height: 100vh;
}

#app {
    display: flex;
    height: 100vh;
}

/* ===== 侧边栏 ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease;
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 0;
    overflow-y: auto;
}

.sidebar-nav::-webkit-scrollbar { width: 0; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--text-sidebar);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    font-size: 14px;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.nav-item:hover {
    color: var(--text-sidebar-active);
    background: rgba(255,255,255,0.05);
    padding-left: 28px;
}

.nav-item:active {
    background: rgba(14,165,233,0.25);
    transform: scaleX(0.98);
}

.nav-item.active {
    color: var(--text-sidebar-active);
    background: rgba(14,165,233,0.18);
    font-weight: 600;
    padding-left: 28px;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-light), var(--primary));
    border-radius: 0 4px 4px 0;
    box-shadow: 0 0 8px rgba(14,165,233,0.6);
}

.nav-item .nav-arrow {
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s;
    color: rgba(255,255,255,0.5);
    font-size: 18px;
    line-height: 1;
}

.nav-item:hover .nav-arrow,
.nav-item.active .nav-arrow {
    opacity: 1;
    transform: translateX(2px);
}

.nav-item.active .nav-arrow {
    color: var(--text-sidebar-active);
}

.user-card-clickable {
    cursor: pointer;
    transition: all 0.2s;
}

.user-card-clickable:hover {
    background: rgba(255,255,255,0.06) !important;
    transform: translateX(2px);
}

.nav-icon { font-size: 18px; }
.nav-badge {
    margin-left: auto;
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    min-width: 20px;
    height: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
}
.nav-badge-orange { background: var(--level-medium); }
.nav-badge-purple { background: var(--primary-light); }

/* 侧边栏头像区被 nav-arrow 占用空间时，给 nav-badge 留位 */
.nav-item:has(.nav-badge) .nav-arrow {
    margin-left: 4px;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.2s;
}

.user-card:hover { background: rgba(255,255,255,0.05); }

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    flex-shrink: 0;
}

.user-info { overflow: hidden; }
.user-name { color: #fff; font-size: 14px; font-weight: 600; }
.user-level { color: var(--text-sidebar); font-size: 12px; margin-top: 2px; }

/* ===== 主内容区 ===== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ===== 顶栏 ===== */
.topbar {
    height: var(--topbar-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 10001; /* 始终在 lesson-fullscreen-overlay(9999) / player(100) / chat(110) 之上 */
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-dark);
}

.page-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.wallet-display {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--level-basic-bg);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    color: var(--level-basic);
}

/* 播放器打开时：隐藏顶栏的页面标题与金额，播放界面更沉浸 */
body.player-open .page-title,
body.player-open .wallet-display {
    display: none !important;
}

.wallet-icon { font-size: 16px; }

.topbar-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
}

/* ===== 页面容器 ===== */
.page-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden; /* 手机上禁止左右滑动（内容再宽也裁掉，不允许横向滚） */
    padding: 24px 16px 96px;  /* 第五轮：底部 96px = bottom-nav 60 + 36 safe-area，避免内容被遮挡 */
    background: url('../images/home-bg.png') center top / cover no-repeat fixed; /* 全软件背景图（梦幻插画） */
}

.page-container::-webkit-scrollbar { width: 6px; }
.page-container::-webkit-scrollbar-track { background: transparent; }
.page-container::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }

/* ===== 通用组件 ===== */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 13px;
    color: var(--text-medium);
    margin-top: 4px;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr)); /* min(340px,100%)：窄屏轨道永不超出容器 */
    gap: 20px;
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    min-width: 0; /* 网格子项允许收缩，防长内容（网址等）把轨道撑破导致横向溢出 */
    overflow-wrap: break-word;
    word-break: break-word;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid var(--border-color);
}
.card a { word-break: break-all; }

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 难度标签 */
.level-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.level-badge.basic { background: var(--level-basic-bg); color: var(--level-basic); }
.level-badge.medium { background: var(--level-medium-bg); color: var(--level-medium); }
.level-badge.advanced { background: var(--level-advanced-bg); color: var(--level-advanced); }
.level-badge.starter { background: var(--level-starter-bg); color: var(--level-starter); }
.level-badge.workbuddy { background: var(--level-workbuddy-bg); color: var(--level-workbuddy); }
.level-badge.trae { background: var(--level-trae-bg); color: var(--level-trae); }
.level-badge.chatgpt { background: var(--level-chatgpt-bg); color: var(--level-chatgpt); }
.level-badge.codex { background: var(--level-codex-bg); color: var(--level-codex); }
.level-badge.xiaoyunque { background: var(--level-xiaoyunque-bg); color: var(--level-xiaoyunque); }
.level-badge.xingliu { background: var(--level-xingliu-bg); color: var(--level-xingliu); }

/* 价格标签 */
.price-tag {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-dark);
}

.price-tag .currency { font-size: 16px; font-weight: 600; }
.price-tag .unit { font-size: 14px; font-weight: 400; color: var(--text-medium); }
.price-tag.price-free {
    color: var(--level-basic);
    font-size: 22px;
}
.price-tag .free-tag {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, #00B894, #55EFC4);
    color: #fff;
    border-radius: 20px;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(0, 184, 148, 0.3);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
}

.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-success {
    background: var(--level-basic);
    color: #fff;
}

.btn-success:hover { opacity: 0.9; }

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover { background: var(--primary); color: #fff; }

.btn-danger {
    background: var(--level-advanced);
    color: #fff;
}

.btn-block { width: 100%; }
.btn-sm { padding: 6px 16px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 课程卡片 */
.course-card {
    display: flex;
    flex-direction: column;
}
.course-card.course-card-clickable {
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.course-card.course-card-clickable:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-color: var(--primary);
}

.course-cover {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 56px;
    position: relative;
}

.course-cover.basic { background: linear-gradient(135deg, #00B894, #55EFC4); }
.course-cover.medium { background: linear-gradient(135deg, #FDA434, #FDCB6E); }
.course-cover.advanced { background: linear-gradient(135deg, #E74C3C, #Fab1a0); }
.course-cover.starter { background: linear-gradient(135deg, #0EA5E9, #7DD3FC); }
.course-cover.workbuddy { background: linear-gradient(135deg, #0984E3, #74B9FF); }
.course-cover.trae { background: linear-gradient(135deg, #00CEC9, #81ECEC); }
.course-cover.chatgpt { background: linear-gradient(135deg, #10A37F, #74E0B9); }
.course-cover.codex { background: linear-gradient(135deg, #2D3436, #636E72); }
.course-cover.xiaoyunque { background: linear-gradient(135deg, #FF7675, #FAB1A0); }
.course-cover.xingliu { background: linear-gradient(135deg, #FDCB6E, #FFEAA7); }

.course-cover .cover-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255,255,255,0.9);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-dark);
}

.course-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.course-software {
    font-size: 13px;
    color: var(--text-medium);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.course-desc {
    font-size: 13px;
    color: var(--text-medium);
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
}

.course-website {
    font-size: 13px;
    color: var(--text-medium);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.course-website a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    word-break: break-all;
}
.course-website a:hover {
    text-decoration: underline;
}

.course-access-note {
    font-size: 12px;
    color: #E67E22;
    line-height: 1.6;
    padding: 8px 10px;
    margin-bottom: 12px;
    background: rgba(255,159,67,0.12);
    border-left: 3px solid #FF9F43;
    border-radius: 6px;
}

.course-lessons {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.course-status {
    font-size: 13px;
    font-weight: 600;
}

.status-locked { color: var(--text-light); }
.status-purchased { color: var(--level-basic); }
.status-learning { color: var(--level-medium); }
.status-completed { color: var(--primary); }

/* 订单卡片 */
.order-card {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.order-title {
    font-size: 16px;
    font-weight: 700;
}

.order-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-medium);
}

.order-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.order-desc {
    font-size: 13px;
    color: var(--text-medium);
    line-height: 1.6;
}

.order-requirements {
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-medium);
}

.order-requirements li {
    margin: 4px 0;
    list-style: none;
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

.order-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

/* 统计卡片 */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform 0.2s ease;
}

.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* 可点击的统计卡片 */
.stat-card.stat-clickable {
    cursor: pointer;
    position: relative;
    border-color: transparent;
}

.stat-card.stat-clickable:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.15);
}

.stat-link {
    margin-top: 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    transition: color 0.2s ease;
}

.stat-card.stat-clickable:hover .stat-link { color: var(--accent); }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.stat-icon.purple { background: rgba(14,165,233,0.1); }
.stat-icon.green { background: var(--level-basic-bg); }
.stat-icon.orange { background: var(--level-medium-bg); }
.stat-icon.red { background: var(--level-advanced-bg); }

.stat-info { flex: 1; }
.stat-label { font-size: 13px; color: var(--text-medium); margin-bottom: 4px; }
.stat-value { font-size: 24px; font-weight: 800; color: var(--text-dark); }
.stat-value .stat-unit { font-size: 13px; font-weight: 400; color: var(--text-medium); }

/* 欢迎横幅 */
.welcome-banner {
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    padding: 32px;
    color: #fff;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.welcome-banner::after {
    content: '🎬';
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 100px;
    opacity: 0.15;
}

.welcome-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.welcome-text { font-size: 14px; opacity: 0.9; max-width: 500px; line-height: 1.6; }
.welcome-actions { margin-top: 20px; display: flex; gap: 12px; }

.btn-white {
    background: rgba(255,255,255,0.95);
    color: var(--primary);
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-white:hover { background: var(--bg-card); transform: translateY(-1px); }

.btn-glass {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-glass:hover { background: rgba(255,255,255,0.25); }

/* 进度条 */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-hover);
    border-radius: 4px;
    overflow: hidden;
    margin: 8px 0;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 12px;
    color: var(--text-medium);
}

/* 学习中心 - 课程详情 */
.lesson-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

.lesson-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
}

.lesson-item:hover { border-color: var(--primary-light); background: var(--bg-hover); }
.lesson-item.completed { border-color: var(--level-basic); }
.lesson-item.locked { opacity: 0.5; cursor: not-allowed; }

/* 当前要学的课时高亮（从首页卡片点入的下一课） */
.lesson-item.lesson-next {
    border: 2px solid var(--primary-color, #0ea5e9);
    background: linear-gradient(135deg, rgba(63,182,255,0.22) 0%, rgba(63,182,255,0.10) 100%) !important;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.32);
    position: relative;
    animation: pulseNext 1.6s ease-in-out infinite;
    color: var(--text-dark) !important;
}
.lesson-item.lesson-next .lesson-title,
.lesson-item.lesson-next .lesson-duration,
.lesson-item.lesson-next .lesson-info,
.lesson-item.lesson-next .lesson-info * {
    color: #FFFFFF !important;
}
.lesson-item.lesson-next .lesson-num {
    background: var(--primary-color, #0ea5e9);
    color: #fff;
    font-size: 14px;
}
.lesson-item.lesson-next::after {
    content: '下一课';
    position: absolute;
    top: -10px;
    right: 12px;
    background: var(--primary-color, #0ea5e9);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 10px;
    letter-spacing: 1px;
    box-shadow: 0 2px 6px rgba(14, 165, 233, 0.4);
}
@keyframes pulseNext {
    0%, 100% { box-shadow: 0 4px 14px rgba(14, 165, 233, 0.22); }
    50% { box-shadow: 0 6px 22px rgba(14, 165, 233, 0.48); }
}

.lesson-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-medium);
    flex-shrink: 0;
}

.lesson-item.completed .lesson-num {
    background: var(--level-basic);
    color: #fff;
}

.lesson-info { flex: 1; }
.lesson-title { font-size: 14px; font-weight: 600; }
.lesson-duration { font-size: 12px; color: var(--text-light); }

.lesson-status {
    font-size: 18px;
}

/* 锁定提示 */
.lock-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.lock-icon { font-size: 48px; margin-bottom: 16px; }
.lock-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.lock-desc { font-size: 14px; color: var(--text-medium); margin-bottom: 20px; max-width: 400px; }

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.empty-icon { font-size: 64px; margin-bottom: 16px; opacity: 0.5; }
.empty-title { font-size: 18px; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; }
.empty-desc { font-size: 14px; color: var(--text-medium); margin-bottom: 24px; }

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal-overlay.show { display: flex; }

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow: hidden;
    animation: slideUp 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title { font-size: 18px; font-weight: 700; }

.modal-close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-light);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.modal-close:hover { background: var(--bg-hover); color: var(--text-dark); }

.modal-body {
    padding: 24px;
    max-height: calc(90vh - 70px);
    overflow-y: auto;
}

/* 支付确认 */
.payment-summary {
    background: var(--bg-hover);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 16px 0;
}

.payment-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    font-size: 14px;
}

.payment-row.total {
    border-top: 1px solid var(--border-color);
    margin-top: 8px;
    padding-top: 16px;
    font-weight: 700;
    font-size: 18px;
}

.payment-row .label { color: var(--text-medium); }
.payment-row .value { font-weight: 600; }

.payment-methods {
    display: flex;
    gap: 12px;
    margin: 16px 0;
}

.payment-method {
    flex: 1;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.payment-method:hover { border-color: var(--primary-light); }
.payment-method.selected { border-color: var(--primary); background: rgba(14,165,233,0.05); }

.payment-method-icon { font-size: 28px; margin-bottom: 8px; }
.payment-method-name { font-size: 13px; font-weight: 600; }

/* Toast 通知 */
.toast-container {
    position: fixed;
    top: calc(var(--topbar-height) + 12px); /* 顶栏(64px, z-index 10001)之下，避免被顶栏遮住 */
    right: 20px;
    z-index: 11000; /* 高于顶栏(10001) / 图片放大层(10010)，保证始终可见 */
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none; /* 容器不挡操作；单个 toast 点击关闭时自行开启 */
}
.toast-container .toast { pointer-events: auto; }

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideInRight 0.3s ease;
    min-width: 280px;
    max-width: 400px;
}

.toast.success { background: var(--level-basic); color: #fff; }
.toast.error { background: var(--level-advanced); color: #fff; }
.toast.info { background: var(--primary); color: #fff; }
.toast.warning { background: var(--level-medium); color: #fff; }

.toast.fade-out { animation: slideOutRight 0.3s ease forwards; }

/* 钱包页面 */
.wallet-balance-card {
    background: linear-gradient(135deg, #0EA5E9, #00CEC9);
    border-radius: var(--radius-lg);
    padding: 32px;
    color: #fff;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.wallet-balance-card::after {
    content: '💰';
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 80px;
    opacity: 0.15;
}

.wallet-label { font-size: 14px; opacity: 0.9; margin-bottom: 8px; }
.wallet-amount-large { font-size: 36px; font-weight: 800; }

.wallet-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.wallet-transaction-list {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.transaction-item:last-child { border-bottom: none; }

.transaction-info { display: flex; flex-direction: column; gap: 4px; }
.transaction-title { font-size: 14px; font-weight: 600; }
.transaction-time { font-size: 12px; color: var(--text-light); }

.transaction-amount { font-size: 16px; font-weight: 700; }
.transaction-amount.income { color: var(--level-basic); }
.transaction-amount.expense { color: var(--level-advanced); }

/* 个人中心 */
.profile-header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 32px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.profile-avatar-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 32px;
    font-weight: 700;
    flex-shrink: 0;
}

.profile-name { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.profile-meta { font-size: 14px; color: var(--text-medium); }

.profile-stats {
    display: flex;
    gap: 32px;
    margin-left: auto;
}

.profile-stat { text-align: center; }
.profile-stat-value { font-size: 24px; font-weight: 800; color: var(--text-dark); }
.profile-stat-label { font-size: 12px; color: var(--text-medium); margin-top: 4px; }

/* 工作台 - 订单状态 */
.work-status-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0;
}

.work-tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-medium);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.work-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.work-tab:hover { color: var(--primary); }

.work-tab .tab-count {
    background: var(--bg-hover);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    margin-left: 6px;
}

.work-tab.active .tab-count { background: rgba(14,165,233,0.1); color: var(--primary); }

/* 视频播放器模拟 */
.video-player-mock {
    background: #1a1a2e;
    border-radius: var(--radius-md);
    aspect-ratio: 16/9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    position: relative;
    overflow: hidden;
    margin-bottom: 16px;
}

.video-player-mock .play-icon {
    font-size: 64px;
    opacity: 0.8;
    cursor: pointer;
    transition: opacity 0.2s;
}

.video-player-mock .play-icon:hover { opacity: 1; }

.video-player-mock .video-title {
    font-size: 18px;
    font-weight: 600;
    margin-top: 12px;
}

.video-player-mock .video-duration {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin-top: 4px;
}

.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 16px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    display: flex;
    align-items: center;
    gap: 12px;
}

.video-progress {
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    overflow: hidden;
}

.video-progress-fill {
    height: 100%;
    background: var(--primary-light);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s;
}

/* 动画 */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideOutRight { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(100%); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.fade-in { animation: fadeIn 0.3s ease; }
.slide-up { animation: slideUp 0.3s ease; }

/* 页面切换动画 */
.page-enter {
    animation: fadeIn 0.3s ease;
}

/* 响应式 */
@media (max-width: 1024px) {
    .card-grid { grid-template-columns: 1fr; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .profile-stats { margin-left: 0; margin-top: 16px; }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
    }

    .sidebar.open { transform: translateX(0); }

    .menu-toggle { display: block; }

    .stat-grid { grid-template-columns: 1fr; }
    .profile-header { flex-direction: column; text-align: center; }
    .profile-stats { margin-left: 0; }
    .topbar-right { gap: 12px; }
    .wallet-display { padding: 6px 12px; font-size: 13px; }
    .page-container { padding: 16px 16px 80px; }  /* 第五轮：移动端底部也保留 80px 安全区 */
}

/* 课程难度路径图 */
.level-path {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
    flex-wrap: wrap;
}

.level-path-item {
    flex: 1;
    min-width: 200px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-color);
    text-align: center;
    position: relative;
}

.level-path-item.active { border-color: var(--primary); }
.level-path-item.completed { border-color: var(--level-basic); }

.level-path-item.level-path-clickable {
    cursor: pointer;
    transition: all 0.25s ease;
}
.level-path-item.level-path-clickable:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}
.level-path-hint {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed var(--border-color);
    font-size: 12px;
    color: var(--text-light);
    font-weight: 600;
    transition: color 0.2s ease;
}
.level-path-item.level-path-clickable:hover .level-path-hint { color: var(--primary); }

.level-path-arrow {
    font-size: 24px;
    color: var(--text-light);
    align-self: center;
}

.level-path-num {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 8px;
}

.level-path-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.level-path-price { font-size: 13px; color: var(--text-medium); }
.level-path-software { font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* ===== 5大热门方向主题卡片 ===== */
.theme-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}
.theme-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 20px 16px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.theme-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--theme-color, var(--primary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.theme-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--theme-color, var(--primary));
}
.theme-card:hover::before {
    transform: scaleX(1);
}
.theme-hint {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed var(--border-color);
    font-size: 11px;
    color: var(--text-light);
    font-weight: 600;
}
.theme-card:hover .theme-hint { color: var(--theme-color, var(--primary)); }
.theme-emoji {
    font-size: 40px;
    margin-bottom: 8px;
    line-height: 1;
}
.theme-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}
.theme-desc {
    font-size: 12px;
    color: var(--text-medium);
    line-height: 1.4;
}
@media (max-width: 900px) {
    .theme-grid { grid-template-columns: repeat(3, 1fr); }
}
/* ===== 全屏教学界面 ===== */
.lesson-fullscreen-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-hover);
    z-index: 10005; /* 高于全局顶栏(10001)，让 lesson-fs-header 顶替顶栏 */
    display: none;
    flex-direction: column;
    animation: fadeIn 0.25s ease;
}

.lesson-fullscreen-overlay.show {
    display: flex;
}

.lesson-fs-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.lesson-fs-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* 课时头部左侧的"初级/中级/高级"小标签 + 进度条（移动版紧凑布局） */
.lesson-fs-back {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--surface-2);
    color: var(--text-dark);
    border: none;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    flex-shrink: 0;
    margin-right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background 0.15s;
}
.lesson-fs-back:hover { background: var(--primary-light); color: #fff; }
.lesson-fs-level {
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
    color: #fff;
    background: var(--level-basic, #6C5CE7);
    flex-shrink: 0;
}
.lesson-fs-level.basic { background: var(--level-basic, #6C5CE7); }
.lesson-fs-level.medium { background: var(--level-medium, #FF6B35); }
.lesson-fs-level.advanced { background: var(--level-advanced, #E84393); }
.lesson-fs-level.starter { background: var(--level-starter, #00CEC9); }
.lesson-fs-level.workbuddy,
.lesson-fs-level.trae,
.lesson-fs-level.chatgpt,
.lesson-fs-level.codex,
.lesson-fs-level.xiaoyunque,
.lesson-fs-level.xingliu { background: #6C5CE7; }
.lesson-fs-header-progress {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-medium);
}
.lesson-fs-header-progress .progress-bar {
    width: 80px;
    height: 6px;
}
.lesson-fs-header-pct { font-weight: 600; color: var(--text-dark); }

.lesson-fs-back-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    transition: all 0.2s;
}

.lesson-fs-back-btn:hover {
    background: var(--primary-light);
    color: #fff;
    border-color: var(--primary-light);
}

.lesson-fs-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
}

.lesson-fs-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-medium);
    align-items: center;
    flex-wrap: wrap;
}

.lesson-fs-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    background: var(--bg-hover);
    border-radius: 12px;
}

.lesson-fs-body {
    flex: 1;
    overflow-y: auto;
    padding: 32px 40px;
    scroll-behavior: smooth;
}

.lesson-fs-body::-webkit-scrollbar { width: 8px; }
.lesson-fs-body::-webkit-scrollbar-track { background: transparent; }
.lesson-fs-body::-webkit-scrollbar-thumb { background: #ccc; border-radius: 4px; }
.lesson-fs-body::-webkit-scrollbar-thumb:hover { background: #aaa; }

.lesson-fs-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 2;
    color: var(--text-dark);
}

.lesson-fs-content h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-dark);
    margin: 28px 0 14px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--primary);
    display: inline-block;
}

.lesson-fs-content h3:first-child {
    margin-top: 0;
}

.lesson-fs-content h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 22px 0 10px;
}

.lesson-fs-content p {
    margin: 10px 0;
    line-height: 2;
}

.lesson-fs-content ul, .lesson-fs-content ol {
    margin: 12px 0;
    padding-left: 24px;
}

.lesson-fs-content li {
    margin: 8px 0;
    line-height: 1.9;
}

.lesson-fs-content table {
    margin: 16px 0;
    border-collapse: collapse;
    width: 100%;
    font-size: 14px;
}

.lesson-fs-content th {
    background: var(--primary);
    color: #fff;
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
}

.lesson-fs-content td {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.lesson-fs-content div[style*="background:#f5f5f5"],
.lesson-fs-content div[style*="background:rgba"] {
    margin: 16px 0;
    border-radius: 10px;
    overflow-x: auto;
}

.lesson-fs-content code {
    background: rgba(14,165,233,0.08);
    color: var(--primary-dark);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    font-family: 'Consolas', 'Monaco', monospace;
}

/* ===== 课程内图片：缩略/点击放大/深色适配 ===== */
.lesson-fs-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 12px auto;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 4px 18px rgba(0,0,0,0.45), 0 0 0 1px rgba(63,182,255,0.18);
    cursor: zoom-in;
    transition: transform 0.2s, box-shadow 0.2s;
    -webkit-user-drag: none;
    user-select: none;
}
.lesson-fs-content img:hover {
    transform: scale(1.015);
    box-shadow: 0 6px 24px rgba(63,182,255,0.35), 0 0 0 1px rgba(63,182,255,0.35);
}
.lesson-fs-content img.lesson-img-loading {
    opacity: 0.35;
    filter: blur(2px);
}

/* ===== 课程内联浅色背景在深色主题下的自适应 ===== */
/* A. 浅色 hex / 渐变 块 → 统一染蓝白 */
.lesson-fs-content div[style*="background:#fff"],
.lesson-fs-content div[style*="background:#f5f5f5"],
.lesson-fs-content div[style*="background:#faf9ff"],
.lesson-fs-content div[style*="background:#fafafa"],
.lesson-fs-content div[style*="background:#f0faf5"],
.lesson-fs-content div[style*="background:#f0eaff"],
.lesson-fs-content div[style*="background:#fff5f0"],
.lesson-fs-content div[style*="background:#fff0e8"],
.lesson-fs-content div[style*="background:#fff5e8"],
.lesson-fs-content div[style*="background:#fff8e8"],
.lesson-fs-content div[style*="background:#fffbe8"],
.lesson-fs-content div[style*="background:#ffffe8"],
.lesson-fs-content div[style*="background:#ffe8e0"],
.lesson-fs-content div[style*="background:#f8f9fb"],
.lesson-fs-content div[style*="background:#f8fff9"],
.lesson-fs-content div[style*="background:#eafff5"],
.lesson-fs-content div[style*="background:#fffbea"],
.lesson-fs-content div[style*="background:#e8f7f0"],
.lesson-fs-content div[style*="background:#fafbff"],
.lesson-fs-content div[style*="background:#fff7e6"],
.lesson-fs-content div[style*="background:#fffbf0"],
.lesson-fs-content div[style*="background:linear-gradient(135deg,#f0eaff"],
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fff5f0"],
.lesson-fs-content div[style*="background:linear-gradient(135deg,#f8f9fb"],
.lesson-fs-content div[style*="background:linear-gradient(135deg,#eafff5"],
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fffbf0"],
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fffbe8"],
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fff"] {
    background: rgba(63,182,255,0.16) !important;
    border: 1px solid rgba(63,182,255,0.4) !important;
    color: #FFFFFF !important;
}
/* B. lessons-seed.js 用到的 8 种浅色 rgba 块（紫/绿/黄/白/通用）→ 统一染蓝白 */
.lesson-fs-content div[style*="background:rgba(108,92,231"],
.lesson-fs-content div[style*="background:rgba(46,204,113"],
.lesson-fs-content div[style*="background:rgba(253,203,110"],
.lesson-fs-content div[style*="background:rgba(255,255,255,.15"],
.lesson-fs-content div[style*="background:rgba(255,255,255,.25"],
.lesson-fs-content div[style*="background:rgba(108,92,231,.06"],
.lesson-fs-content div[style*="background:rgba(46,204,113,.08"],
.lesson-fs-content div[style*="background:rgba(253,203,110,.08"] {
    background: rgba(63,182,255,0.16) !important;
    border: 1px solid rgba(63,182,255,0.4) !important;
    color: #FFFFFF !important;
}
/* C. 杀手锏：任何带 inline background 的 div，块内所有子元素强制白色
   （覆盖 h3 标题、li/strong/p/em/span 等不再受默认 var(--text-dark) 影响） */
.lesson-fs-content div[style*="background"] h3,
.lesson-fs-content div[style*="background"] h4,
.lesson-fs-content div[style*="background"] h5,
.lesson-fs-content div[style*="background"] li,
.lesson-fs-content div[style*="background"] p,
.lesson-fs-content div[style*="background"] strong,
.lesson-fs-content div[style*="background"] b,
.lesson-fs-content div[style*="background"] em,
.lesson-fs-content div[style*="background"] span {
    color: #FFFFFF !important;
}
.lesson-fs-content div[style*="background"] h3 {
    border-bottom-color: rgba(63,182,255,0.5) !important;
}
/* D. 通用兜底：浅色块（含 rgba）内所有后代也强制继承白色 */
.lesson-fs-content div[style*="background:#fff"] *,
.lesson-fs-content div[style*="background:#f5f5f5"] *,
.lesson-fs-content div[style*="background:#faf9ff"] *,
.lesson-fs-content div[style*="background:#f0faf5"] *,
.lesson-fs-content div[style*="background:#f0eaff"] *,
.lesson-fs-content div[style*="background:#fff5f0"] *,
.lesson-fs-content div[style*="background:#fff0e8"] *,
.lesson-fs-content div[style*="background:#fff5e8"] *,
.lesson-fs-content div[style*="background:#fff8e8"] *,
.lesson-fs-content div[style*="background:#fffbe8"] *,
.lesson-fs-content div[style*="background:#ffffe8"] *,
.lesson-fs-content div[style*="background:#ffe8e0"] *,
.lesson-fs-content div[style*="background:#f8f9fb"] *,
.lesson-fs-content div[style*="background:linear-gradient(135deg,#f0eaff"] *,
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fff5f0"] *,
.lesson-fs-content div[style*="background:linear-gradient(135deg,#f8f9fb"] *,
.lesson-fs-content div[style*="background:#e8f7f0"] *,
.lesson-fs-content div[style*="background:#fafbff"] *,
.lesson-fs-content div[style*="background:#fff7e6"] *,
.lesson-fs-content div[style*="background:#fffbf0"] *,
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fffbf0"] *,
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fffbe8"] *,
.lesson-fs-content div[style*="background:linear-gradient(135deg,#fff"] * {
    color: inherit !important;
}
.lesson-fs-content div[style*="background:rgba(108,92,231"] *,
.lesson-fs-content div[style*="background:rgba(46,204,113"] *,
.lesson-fs-content div[style*="background:rgba(253,203,110"] *,
.lesson-fs-content div[style*="background:rgba(255,255,255,.15"] *,
.lesson-fs-content div[style*="background:rgba(255,255,255,.25"] * {
    color: inherit !important;
}
.lesson-fs-content div[style*="background:#1e1e1e"] {
    background: #0A1020 !important;
    color: #E8F2FF;
}
/* 浅色文字在深色主题下强制提亮（解决 color:#333/#444 等深色字在深色背景上不可见） */
.lesson-fs-content [style*="color:#333"],
.lesson-fs-content [style*="color:#444"],
.lesson-fs-content [style*="color:#555"],
.lesson-fs-content [style*="color:#666"],
.lesson-fs-content [style*="color:#888"],
.lesson-fs-content [style*="color:#999"] {
    color: #F0F6FF !important;
}
.lesson-fs-content [style*="color:#6c5ce7"] { color: #8FA3FF !important; }
.lesson-fs-content [style*="color:#ff6b35"] { color: #FFB199 !important; }
.lesson-fs-content [style*="color:#b38900"] { color: #FFD980 !important; }
.lesson-fs-content [style*="color:#ffaa44"] { color: #FFD980 !important; }
.lesson-fs-content [style*="color:#ffdd99"] { color: #FFE9B8 !important; }
.lesson-fs-content [style*="color:#5566ff"] { color: #A0B8FF !important; }
.lesson-fs-content [style*="color:#5dadec"] { color: #A0D8FF !important; }
.lesson-fs-content [style*="color:#2ecc71"],
.lesson-fs-content [style*="color:#27ae60"] { color: #6FE6A4 !important; }
.lesson-fs-content [style*="color:#e74c3c"] { color: #FF9999 !important; }
.lesson-fs-content [style*="color:#d4d4d4"] { color: #E0E0E0 !important; }
/* 保护原本就设计在浅色盒内的白字（标题栏） */
.lesson-fs-content div[style*="background:#6c5ce7"] { color: #fff; }
.lesson-fs-content div[style*="background:linear-gradient(135deg,#6c5ce7"] { color: #fff; }
/* 行内代码药丸（code 自带浅色背景）→ 强制深色文字，修复浅底浅字 */
.lesson-fs-content code[style*="background"] {
    color: #1a1a2e !important;
    background: rgba(63,182,255,0.18) !important;
}
.lesson-fs-content span[style*="background:#f0eaff"],
.lesson-fs-content span[style*="background:#fff"] {
    color: #1a1a2e !important;
}

.lesson-fs-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.lesson-fs-nav {
    display: flex;
    gap: 12px;
    align-items: center;
}

.lesson-fs-nav-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.lesson-fs-nav-btn.prev {
    background: var(--bg-hover);
    color: var(--text-dark);
}

.lesson-fs-nav-btn.prev:hover {
    background: #e8e8ef;
}

.lesson-fs-nav-btn.next {
    background: var(--primary-gradient);
    color: #fff;
}

.lesson-fs-nav-btn.next:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.lesson-fs-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.lesson-fs-progress {
    font-size: 13px;
    color: var(--text-medium);
}

/* ===== 学习中心焦点卡片新视觉：标题竖排 + 紧凑布局 ===== */
.focus-course-header {
    padding: 24px 0 12px;
}
.focus-course-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: 6px;
}
.focus-course-subtitle {
    font-size: 14px;
    color: var(--text-medium);
}
.focus-card-title-vert {
    /* 在桌面版/平板用水平短标题 */
    font-size: 17px;
    line-height: 1.3;
}
.focus-card-level {
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    color: #fff;
    background: var(--level-basic, #6C5CE7);
}
.focus-card-meta .progress-bar { width: 84px; height: 5px; }
.focus-continue-btn {
    border-radius: 12px !important;
    padding: 14px 18px !important;
    font-size: 15px !important;
}

/* 响应式 */
@media (max-width: 768px) {
    .lesson-fs-body { padding: 20px 16px; }
    .lesson-fs-content { font-size: 14px; }
    .lesson-fs-header { padding: 12px 16px; }
    .lesson-fs-title { font-size: 15px; }
    .lesson-fs-footer { padding: 14px 16px; flex-direction: column; gap: 12px; }
    .lesson-fs-nav { width: 100%; justify-content: space-between; }
    /* 移动版隐藏 meta 行（课时元信息移到 lesson-fs-header 内嵌进度） */
    .lesson-fs-meta { display: none !important; }
    .lesson-fs-header-progress { display: flex !important; }
    /* 焦点卡片标题：手机端恢复正常横向显示（不再竖排） */
    .focus-card-title-vert {
        writing-mode: horizontal-tb;
        line-height: 1.35;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-dark);
        max-height: none;
        margin: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }
    .focus-card-row { padding: 14px !important; gap: 10px !important; }
    .focus-card-icon { width: 56px !important; height: 56px !important; font-size: 26px !important; }
    .focus-card-software { padding: 0 14px 12px !important; font-size: 12px !important; }
    .focus-card-meta { min-width: 60px; }
    .focus-card-meta .progress-bar { width: 70px; }
    /* 学习中心焦点卡片：body 链接更紧 */
    .focus-course-cta { gap: 8px !important; }
    /* 学习中心底部 padding 兼容 safe area */
    .course-focused > div[id^="course-detail-"] { padding: 16px !important; }
}

@media (max-width: 600px) {
    .theme-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 无侧栏模式：主内容占满 ===== */
.main-content-full {
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.page-container-with-bottombar {
    /* 第五轮：不再覆盖 padding-bottom，沿用 .page-container 的 96px 安全区 */
}

/* ===== 底部固定导航栏 ===== */
.bottombar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: 64px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    display: none;
    align-items: stretch;
    justify-content: space-around;
    z-index: 100;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.04);
    padding-bottom: env(safe-area-inset-bottom, 0);
}
.bottombar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 12px;
    position: relative;
    transition: color .2s, transform .15s;
    cursor: pointer;
    user-select: none;
}
.bottombar-item:hover { color: #FF6B35; }
.bottombar-item:active { transform: scale(0.95); }
.bottombar-item.active {
    color: #FF6B35;
    font-weight: 600;
}
.bottombar-item.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 3px;
    background: linear-gradient(90deg, #0ea5e9, #7dd3fc);
    border-radius: 0 0 4px 4px;
}
.bottombar-icon { font-size: 22px; line-height: 1; }
.bottombar-label { font-size: 11px; line-height: 1; }
.bottombar-badge {
    position: absolute;
    top: 6px;
    right: calc(50% - 22px);
    min-width: 16px;
    height: 16px;
    padding: 0 5px;
    background: #ff6b6b;
    color: #fff;
    border-radius: 8px;
    font-size: 10px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

/* 交易页：tab 切换 */
.trade-tabs {
    display: flex;
    background: var(--bg-card);
    border-radius: 12px;
    padding: 6px;
    margin-bottom: 18px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border-color);
}
.trade-tab {
    flex: 1;
    text-align: center;
    padding: 10px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
    border-radius: 8px;
    cursor: pointer;
    transition: all .2s;
    user-select: none;
}
.trade-tab:hover { color: #0ea5e9; }
.trade-tab.active {
    background: linear-gradient(135deg, #0ea5e9, #7dd3fc);
    color: #fff;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

/* 派单表单 */
.publish-form {
    background: var(--bg-card);
    border-radius: 14px;
    padding: 22px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border-color);
}
.publish-form .form-row {
    margin-bottom: 18px;
}
.publish-form .form-label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}
.publish-form .form-required { color: #ff6b6b; font-size: 14px; }
.publish-form .form-input,
.publish-form .form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid #dfe6e9;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-dark);
    background: #fafbfc;
    transition: border-color .2s, background .2s;
    box-sizing: border-box;
    outline: none;
}
.publish-form .form-input:focus,
.publish-form .form-textarea:focus {
    border-color: #0ea5e9;
    background: var(--bg-card);
}
/* 定制分类下拉框：强制亮色渲染（防止手机 WebView 强制深色把文字反成白字白底） */
.publish-form select.form-input {
    color-scheme: light;
    -webkit-appearance: auto;
    appearance: auto;
    background-color: #ffffff;
    color: #2D3436;
    cursor: pointer;
}
.publish-form select.form-input option {
    color: #2D3436;
    background-color: #ffffff;
}
.publish-form .form-textarea {
    min-height: 90px;
    resize: vertical;
    line-height: 1.5;
}
.publish-form .form-hint {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 6px;
}
.publish-form .form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.publish-form .form-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #0ea5e9, #7dd3fc);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: transform .15s, box-shadow .2s;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}
.publish-form .form-submit:hover {
    box-shadow: 0 6px 16px rgba(14, 165, 233, 0.4);
}
.publish-form .form-submit:active { transform: scale(0.98); }
.publish-form .form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ===== 参考素材上传组件 ===== */
.pf-upload-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 4px;
}
.pf-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 14px;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    border: 1.5px dashed #94a3b8;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #475569;
    cursor: pointer;
    transition: all .2s;
}
.pf-upload-btn:hover {
    border-color: #0ea5e9;
    color: #0ea5e9;
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
}
.pf-upload-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.pf-upload-hint-inline {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 6px;
}
.pf-attachment-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
}
.pf-attachment-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 13px;
}
.pf-att-thumb {
    width: 38px;
    height: 38px;
    border-radius: 6px;
    object-fit: cover;
    background: var(--bg-card);
    border: 1px solid #e2e8f0;
    flex-shrink: 0;
}
.pf-att-icon {
    width: 38px;
    height: 38px;
    border-radius: 6px;
    background: linear-gradient(135deg, #e0f2fe, #ddd6fe);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}
.pf-att-meta { flex: 1; min-width: 0; }
.pf-att-name {
    font-weight: 600;
    color: var(--text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}
.pf-att-size {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 2px;
}
.pf-att-del {
    background: none;
    border: none;
    color: #ef4444;
    font-size: 18px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color .2s;
}
.pf-att-del:hover { color: #b91c1c; }
.pf-uploading {
    font-size: 12px;
    color: #0ea5e9;
    font-style: italic;
    margin-left: 4px;
}
.pf-att-uploading {
    opacity: 0.6;
    pointer-events: none;
}
.publish-banner {
    background: linear-gradient(135deg, #fd79a8, #e84393);
    border-radius: 14px;
    padding: 20px 22px;
    color: #fff;
    margin-bottom: 18px;
    box-shadow: 0 4px 12px rgba(232, 67, 147, 0.2);
}
.publish-banner-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.publish-banner-text { font-size: 13px; opacity: 0.95; line-height: 1.5; }

/* 接单卡片（紧凑版，铺满交易页） */
.trade-orders-section {
    margin-top: 4px;
}
.trade-section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 18px 0 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.trade-section-title .level-badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
}
.trade-orders-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}
.trade-order-card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 14px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all .2s;
    position: relative;
}
.trade-order-card:hover {
    border-color: #0ea5e9;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.1);
    transform: translateY(-1px);
}
.trade-order-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 8px;
}
.trade-order-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    flex: 1;
    line-height: 1.4;
}
.trade-order-price {
    color: #ff6b6b;
    font-size: 16px;
    font-weight: 700;
    white-space: nowrap;
}
.trade-order-desc {
    font-size: 12px;
    color: #636e72;
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.trade-order-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 11px;
    color: var(--text-light);
}
.trade-order-meta span { white-space: nowrap; }
.trade-order-actions {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #f0f0f3;
    display: flex;
    justify-content: flex-end;
}
.trade-order-actions .btn {
    padding: 5px 14px;
    font-size: 12px;
    border-radius: 6px;
}
.trade-order-locked {
    text-align: center;
    color: #b2bec3;
    font-size: 12px;
    padding: 16px 0;
}
.trade-order-locked-icon { font-size: 22px; margin-bottom: 4px; }
.trade-empty {
    text-align: center;
    padding: 50px 20px;
    color: #b2bec3;
}
.trade-empty-icon { font-size: 40px; margin-bottom: 8px; }
.trade-empty-text { font-size: 13px; }

@media (max-width: 600px) {
    .bottombar { height: 56px; }
    .bottombar-icon { font-size: 20px; }
    .publish-form .form-row-2 { grid-template-columns: 1fr; }
    .trade-orders-list { grid-template-columns: 1fr; }
}

/* ============================================================
 * 【新增】抖音式首页 + 全局返回按钮 + 作品播放/私信/作者页
 * ============================================================ */

/* ===== 全局返回按钮 · 顶部固定位 ===== */
.topbar-back-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-dark);
    border-radius: 20px;
    padding: 5px 14px 5px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    margin-right: 10px;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}
.topbar-back-btn:hover { border-color: #0EA5E9; color: #0EA5E9; }
.topbar-back-btn::before { content: '←'; font-size: 15px; line-height: 1; }

/* ===== 抖音式首页 · 顶部 tab 栏 ===== */
.home-tabs {
    position: relative; z-index: 50;
    background: rgba(255,255,255,0.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0 6px;
    display: flex;
    gap: 2px;
    /* 公网部署（2026-10-20）：移除横向滚动，5 个 tab 一屏装下（375dp 宽屏手机可见全部） */
    overflow-x: visible;
    justify-content: space-around;
    -ms-overflow-style: none;
    scrollbar-width: none;
}
.home-tabs::-webkit-scrollbar { display: none; }
.home-tab {
    /* 公网部署（2026-10-20）：缩 padding 与字间距，让 5 个 tab 一屏装下 */
    flex: 1 1 0;
    min-width: 0;
    padding: 12px 4px 10px;
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
    border: none;
    background: transparent;
    position: relative;
    font-weight: 500;
}
.home-tab.active { color: var(--text-dark); font-weight: 700; }
.home-tab.active::after {
    content: '';
    position: absolute;
    bottom: 4px; left: 50%;
    transform: translateX(-50%);
    width: 22px; height: 3px; border-radius: 2px;
    background: linear-gradient(90deg, #FF0050, #25F4EE);
}

/* ===== 双列瀑布流 ===== */
.feed-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 8px;
    /* 第六轮：去掉 max-width 540px，让首页网格跟大神讲解一样自适应铺满 */
    margin: 0 auto 80px;  /* 第五轮：底部留 80px 安全区避免被 bottom-nav 遮挡 */
}
@media (min-width: 768px) {
    .feed-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 10px 14px; }
}
@media (min-width: 1080px) {
    .feed-grid { grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 12px 18px; }
}
@media (min-width: 1320px) {
    .feed-grid { grid-template-columns: repeat(5, 1fr); gap: 14px; padding: 12px 20px; }
}
.feed-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    transition: transform 0.18s, box-shadow 0.18s;
}
.feed-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.10); }
/* === 纯文字作品卡片 === */
.feed-card--text .feed-card-cover--text {
    padding-top: 80%;
    display: flex; align-items: stretch; justify-content: flex-start;
}
.feed-card-text-preview {
    position: absolute; left: 0; right: 0; bottom: 0;
    padding: 14px 16px 18px;
    color: #fff;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.55) 100%);
    pointer-events: none;
}
.feed-card-text-title {
    font-size: 16px; font-weight: 700; line-height: 1.3;
    margin-bottom: 4px;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.feed-card-text-snippet {
    font-size: 13px; line-height: 1.5; color: rgba(255,255,255,0.92);
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.feed-card-cover {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 第五轮：改 16:9 横向比例，更接近 B 站视频卡片 */
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
/* 视频无封面时内嵌 <video> 显示首帧（铺满封面区，preload=metadata 加载即渲染第一帧） */
.feed-cover-vid, .workset-cover-vid {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    /* 不设背景色：视频帧未合成时透出下层 canvas 抓帧背景图，双层互为兜底 */
    pointer-events: none;
}
.feed-card-emoji {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 42px;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.18));
}
.feed-card-duration {
    position: absolute; bottom: 6px; right: 6px;
    background: rgba(0,0,0,0.55);
    color: #fff; font-size: 11px;
    padding: 2px 5px; border-radius: 3px;
    font-family: ui-monospace, "SF Mono", monospace;
}
.feed-card-type-tag {
    position: absolute; top: 6px; left: 6px;
    background: linear-gradient(90deg, rgba(255,0,80,0.85), rgba(37,244,238,0.85));
    color: #fff; font-size: 10px;
    padding: 2px 6px; border-radius: 8px;
    font-weight: 600;
}
.feed-card-info { padding: 6px 8px 8px; font-size: 12px; color: var(--text-dark); }
.feed-card-title {
    font-size: 13px; font-weight: 600;
    color: var(--text-dark); line-height: 1.35;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 35px;
}
.feed-card-foot {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 4px; font-size: 11px; color: var(--text-medium);
}
.feed-card-author {
    display: inline-flex; align-items: center; gap: 4px;
    max-width: 60%;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.feed-card-author-avatar {
    display: inline-flex; width: 16px; height: 16px;
    border-radius: 50%;
    align-items: center; justify-content: center;
    font-size: 10px; color: #fff; font-weight: 700;
}
.feed-card-stat { display: inline-flex; align-items: center; gap: 2px; color: #8FA3C8; }
.feed-card-stat--liked { color: #FF4F8B; }

/* 教程网格统计 */
.tut-grid-stat { display: inline-flex; align-items: center; gap: 6px; color: #8FA3C8; }
.tut-grid-stat--liked { color: #FF4F8B; }

/* 播放器侧栏：未点赞白色心，已点赞粉红色 */
.player-action-icon--liked { background: linear-gradient(135deg, #FF0050, #FF4F8B) !important; }

/* 视频作品卡片上的 ▶ 播放角标（居中圆圈） */
.feed-card-play {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 44px; height: 44px;
    border-radius: 50%;
    background: rgba(0,0,0,0.5);
    color: #fff;
    font-size: 18px;
    display: flex; align-items: center; justify-content: center;
    backdrop-filter: blur(4px);
    pointer-events: none;
}

/* ===== 抖音式首页 · 空态/loading ===== */
.feed-empty {
    text-align: center; padding: 60px 20px;
    color: var(--text-light); grid-column: 1 / -1;
}
.feed-empty-icon { font-size: 48px; margin-bottom: 8px; }
.feed-empty-text { font-size: 13px; }

/* ===== 作品全屏播放器 ===== */
.player-overlay {
    position: fixed; inset: 0; z-index: 100;
    background: #000;
    display: flex;
}
/* 公网部署（2026-10-20）：player-overlay 左上角返回按钮（mobile 不靠 topbar，肉眼可见易点） */
.player-close-btn {
    position: absolute;
    top: 12px; left: 12px;
    z-index: 200;
    width: 38px; height: 38px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    transition: background 0.18s, transform 0.18s;
    /* 适配 iPhone 刘海/灵动岛 */
    margin-top: env(safe-area-inset-top, 0px);
}
.player-close-btn:hover { background: rgba(0, 0, 0, 0.7); }
.player-close-btn:active { transform: scale(0.92); }
/* 公网部署（2026-10-20）：图片作品详情页 — 改浅灰背景 + cover 模式铺满，去除黑边空白
   （contain 模式下竖屏容器显示横屏图会有上下黑边；cover 让图铺满、轻微裁切边缘） */
.player-overlay.has-image {
    background: #f0f2f5;
}
.player-stage-image {
    /* cover 铺满；vertical 竖屏容器下，竖屏图填满、横屏图轻微左右裁切但无空白 */
    object-fit: cover;
    background: transparent;
}
/* 第 55 轮：抖音式布局 —— sidebar 浮在最右、不挤视频、按钮去黑色背景
   改用 absolute 脱离 flex 流，背景 transparent 透出视频；
   video stage 通过 flex:1 + min-width:0 占满整个 viewport，right 真正贴边。 */
.player-sidebar {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: auto;
    max-width: 72px;
    display: flex; flex-direction: column; align-items: center;
    padding: 64px 4px 80px;
    gap: 14px;
    background: transparent !important;
    z-index: 10;
    pointer-events: none; /* 透明处不吃点击，让位给视频 */
}
.player-sidebar > * { pointer-events: auto; }
.player-play-btn:hover { transform: scale(1.08); }
.player-stage-meta {
    position: absolute;
    bottom: 20px; left: 20px; right: 76px; /* 第 55 轮：让出侧栏 */
    color: #fff; z-index: 5;
}
/* 有真实视频时，标题移到底部会被视频原生 controls 盖住，改到顶部 + 渐变背景 */
.player-stage-meta--top {
    top: 0; bottom: auto !important;
    left: 0; right: 76px; /* 第 55 轮：让出右侧侧栏位置，避免文字被点赞按钮盖住 */
    padding: 72px 20px 24px;
    background: linear-gradient(180deg, rgba(0,0,0,0.78) 0%, rgba(0,0,0,0.45) 60%, transparent 100%);
}
.player-stage-title {
    font-size: 16px; font-weight: 700;
    margin-bottom: 6px;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}
.player-stage-desc {
    font-size: 12px; color: rgba(255,255,255,0.85);
    line-height: 1.5;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.player-stage-tags { margin-top: 8px; display: flex; gap: 4px; flex-wrap: wrap; }
.player-stage-tag {
    background: rgba(255,255,255,0.18);
    color: #fff; padding: 2px 8px; border-radius: 8px;
    font-size: 11px; backdrop-filter: blur(6px);
}
.player-stage-expand-btn {
    display: inline-block;
    background: none;
    border: none;
    color: #FFB4D2; font-size: 12px; font-weight: 600;
    cursor: pointer;
    padding: 0 2px;
    text-decoration: underline;
}
.player-stage-expand-btn:hover { color: #fff; }
/* === 全屏文字阅读页 === */
.player-stage-reader {
    position: absolute; inset: 0;
    overflow-y: auto;
    overflow-x: hidden;
    background: linear-gradient(160deg, #1A1B2E 0%, #2A2438 100%);
    padding: 80px 28px 100px;
    -webkit-overflow-scrolling: touch;
}
.player-stage-reader::-webkit-scrollbar { width: 4px; }
.player-stage-reader::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }
.player-stage-reader-inner {
    max-width: 640px; margin: 0 auto; color: #fff;
}
.player-stage-reader-title {
    font-size: 22px; font-weight: 700; line-height: 1.4;
    margin: 0 0 24px;
    color: #fff;
}
.player-stage-reader-body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 17px; line-height: 1.85;
    color: rgba(255,255,255,0.92);
    white-space: pre-wrap; word-break: break-word;
    margin: 0 0 32px;
}
.player-stage-reader-author {
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    text-align: right;
    border-top: 1px solid rgba(255,255,255,0.12);
    padding-top: 18px;
}
.player-play-btn.playing { background: rgba(0,0,0,0.5); }
.player-stage-progress {
    position: absolute;
    left: 0; right: 76px; /* 第 55 轮：让出侧栏 */
    bottom: 0;
    height: 3px;
    background: rgba(255,255,255,0.25);
    border-radius: 0;
    overflow: hidden;
    z-index: 5;
}
.player-stage-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #FF0050, #25F4EE);
    transition: width 0.1s linear;
}

/* ===== 播放器 · 右侧作者信息与操作 =====
   .player-sidebar 容器定义见 2401 行（更前）；这里只定义内部子样式。 */
.player-author-block {
    display: flex; flex-direction: column; align-items: center;
    gap: 6px; cursor: pointer;
}
.player-author-avatar {
    width: 52px; height: 52px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 18px;
    border: 2px solid rgba(255,255,255,0.85);
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.player-author-name {
    color: #fff; font-size: 11px; text-align: center;
    max-width: 80px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.player-action {
    display: flex; flex-direction: column; align-items: center;
    gap: 4px; cursor: pointer; color: #fff; user-select: none;
    pointer-events: auto;
}
/* 第 55 轮：去掉黑色半透明圆形背板（抖音式：纯 emoji icon 浮视频上）；2026-10-08：按用户要求去掉光影 */
.player-action-icon {
    width: 44px; height: 44px;
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; line-height: 1;
    filter: none;
    transition: transform 0.15s;
}
.player-action:hover .player-action-icon { transform: scale(1.15); }
.player-action-count { font-size: 12px; color: #fff; font-weight: 600; text-shadow: 0 1px 3px rgba(0,0,0,0.7); }
/* 主操作（每分钟价格）保留淡红渐变填充，让 ¥数字高识别 */
.player-action.primary .player-action-icon { background: linear-gradient(135deg, #FF0050, #FF4F8B) !important; border-radius: 50%; font-size: 14px; font-weight: 800; }
.player-msg-btn {
    margin-top: 12px;
    background: linear-gradient(135deg, #FF0050, #25F4EE);
    border: none; color: #fff; font-size: 11px; font-weight: 600;
    padding: 7px 14px; border-radius: 14px; cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.player-msg-btn:hover { transform: scale(1.05); }
.player-msg-btn.disabled {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.5);
    cursor: not-allowed; box-shadow: none;
    pointer-events: none;
    border: 1px solid rgba(255,255,255,0.18);
}
.player-msg-btn.disabled:hover { transform: none; }

/* 播放器侧栏关注按钮（头像下方小 + / −） */
.player-follow-btn {
    margin-top: 2px; margin-bottom: 6px;
    width: 26px; height: 26px; border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.9);
    background: linear-gradient(135deg, #FF0050, #FF4F8B);
    color: #fff; font-size: 16px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.35);
    transition: transform 0.15s, background 0.15s;
    padding: 0; line-height: 1;
}
.player-follow-btn:hover { transform: scale(1.1); }
.player-follow-btn.following {
    background: rgba(255,255,255,0.22);
    color: #fff;
}

/* ===== 作者主页 ===== */
.author-header {
    display: flex; flex-direction: column; align-items: center;
    padding: 32px 16px 20px;
    background: linear-gradient(135deg, rgba(255,255,255,0.6), rgba(255,255,255,0.95));
}
.author-avatar {
    width: 80px; height: 80px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 30px; font-weight: 700;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    border: 3px solid #fff;
}
.author-avatar-wrap {
    position: relative;
    display: inline-block;
}
.author-follow-btn {
    position: absolute;
    bottom: -6px; left: 50%;
    transform: translateX(-50%);
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 2px solid #fff;
    background: linear-gradient(135deg, #FF0050, #FF4F8B);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(255, 0, 80, 0.35);
    display: flex; align-items: center; justify-content: center;
    padding: 0;
    transition: transform 0.15s, box-shadow 0.15s;
    z-index: 2;
}
.author-follow-btn:hover { transform: translateX(-50%) scale(1.1); box-shadow: 0 3px 10px rgba(255, 0, 80, 0.5); }
.author-follow-btn.following {
    background: linear-gradient(135deg, #636E72, #B2BEC3);
    box-shadow: 0 2px 6px rgba(99, 110, 114, 0.35);
}
.author-follow-btn .follow-icon {
    display: block;
    margin-top: -2px;
}
.author-follow-stats {
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-medium);
    display: flex;
    gap: 6px;
    align-items: center;
}
.author-follow-stats strong {
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 700;
}
.author-follow-stats .dot { color: var(--text-light); }
.author-name { font-size: 20px; font-weight: 700; color: var(--text-dark); margin-top: 10px; }
.author-intro {
    font-size: 13px; color: var(--text-medium); text-align: center;
    max-width: 320px; margin-top: 6px; line-height: 1.5;
}
.author-price-card {
    margin-top: 14px;
    padding: 10px 18px; border-radius: 16px;
    background: linear-gradient(135deg, #FFEEF4, #E8F8FF);
    border: 1px solid #FFD6E5;
    color: #FF0050; font-size: 14px; font-weight: 600;
    display: inline-flex; align-items: center; gap: 8px;
}
.author-price-card.off { background: var(--bg-hover); border-color: var(--border-color); color: var(--text-medium); }

.author-stats {
    display: flex; gap: 0;
    width: 100%; max-width: 380px;
    margin-top: 16px;
    padding: 14px 0;
    border-top: 1px solid var(--border-color);
}
.author-stat { flex: 1; text-align: center; }
.author-stat-num { font-size: 17px; font-weight: 700; color: var(--text-dark); }
.author-stat-label { font-size: 11px; color: var(--text-light); margin-top: 2px; }
.author-actions { display: flex; gap: 10px; margin-top: 14px; }
.author-btn {
    border-radius: 20px; padding: 8px 22px;
    font-size: 13px; font-weight: 600;
    cursor: pointer; border: none;
    transition: all 0.15s;
}
.author-btn.primary { background: linear-gradient(135deg, #0EA5E9, #38BDF8); color: #fff; }
.author-btn.primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(14,165,233,0.35); }
.author-btn.ghost { background: var(--bg-hover); color: var(--text-dark); }
.author-btn.ghost:hover { background: #E5E5EC; }
.author-btn.primary.disabled,
.author-btn.primary[disabled] {
    background: var(--border-color) !important;
    color: #95A5A6 !important;
    cursor: not-allowed;
    box-shadow: none !important;
    transform: none !important;
}

/* ===== 作者主页 · 作品集 tab（首页同款胶囊样式）===== */
.workset-tabs {
    display: flex; gap: 4px;
    background: rgba(10,14,26,0.92);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid #1C2A45;
    border-radius: 16px;
    padding: 6px 8px; margin: 10px 8px 0;
    overflow-x: auto; scrollbar-width: none;
    -ms-overflow-style: none;
}
.workset-tabs::-webkit-scrollbar { display: none; }
.workset-tab {
    flex: 0 0 auto; text-align: center;
    padding: 8px 14px;
    font-size: 13px; color: var(--text-light);
    cursor: pointer; border: none; background: transparent;
    font-weight: 500; border-radius: 12px; white-space: nowrap;
    transition: all .15s;
}
.workset-tab:hover { color: #3FB6FF; }
.workset-tab.active { color: #3FB6FF; background: #1C2A45; font-weight: 700; }
.workset-tab-count { font-size: 10px; color: var(--text-light); margin-left: 3px; }
.workset-tab.active .workset-tab-count { color: #3FB6FF; }
/* 作品集点赞心形：未点赞白色 / 点赞后红色，仅可点赞一次 */
.workset-like { cursor: pointer; user-select: none; transition: transform 0.15s; display: inline-flex; align-items: center; gap: 3px; }
.workset-like:hover { transform: scale(1.15); }
.workset-like.liked { color: #FF2D55; font-weight: 700; animation: worksetLikePop 0.3s ease; }
@keyframes worksetLikePop {
    0% { transform: scale(1); }
    50% { transform: scale(1.35); }
    100% { transform: scale(1); }
}

.workset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 12px 8px;
    /* 跟首页 feed-grid 一致：2/3/4/5 列响应式铺满，去掉过窄约束 */
    margin: 0 auto 80px;
}
@media (min-width: 768px) {
    .workset-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 12px 14px; }
}
@media (min-width: 1080px) {
    .workset-grid { grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 12px 18px; }
}
@media (min-width: 1320px) {
    .workset-grid { grid-template-columns: repeat(5, 1fr); gap: 14px; padding: 12px 20px; }
}
.workset-item {
    border-radius: 12px; overflow: hidden;
    cursor: pointer; background: var(--bg-card);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    transition: transform 0.18s, box-shadow 0.18s;
}
.workset-item:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.10); }
/* 第 38 轮：跟首页一致改 16:9（padding-top: 56.25%），之前 130% 让视频封面占满左半屏过大 */
.workset-cover {
    width: 100%;
    padding-top: 56.25%;
    position: relative;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
.workset-cover-emoji {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 40px;
}
.workset-cover-type-tag {
    position: absolute; top: 6px; left: 6px;
    background: linear-gradient(90deg, rgba(255,0,80,0.85), rgba(37,244,238,0.85));
    color: #fff; font-size: 10px;
    padding: 2px 6px; border-radius: 8px;
    font-weight: 600;
}
.workset-cover-dur {
    position: absolute; bottom: 4px; right: 4px;
    background: rgba(0,0,0,0.55); color: #fff;
    font-size: 10px; padding: 1px 4px; border-radius: 3px;
}
.workset-cover-play {
    position: absolute; inset: 0;
    margin: auto;
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.45);
    color: #fff;
    font-size: 16px;
    border-radius: 50%;
    pointer-events: none;
}
.workset-item-info { padding: 6px 8px 8px; }
.workset-item-title {
    font-size: 12px; font-weight: 600;
    color: var(--text-dark); line-height: 1.3;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 32px;
}
.workset-item-foot {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 10px; color: var(--text-light); margin-top: 2px;
}

.workset-script-item {
    margin: 8px 12px;
    padding: 14px 16px;
    border-radius: 12px;
    background: var(--bg-card);
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.workset-script-title { font-size: 15px; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.workset-script-preview { font-size: 13px; color: var(--text-medium); line-height: 1.55; }
.workset-script-meta { margin-top: 6px; font-size: 11px; color: var(--text-light); }
.workset-empty {
    text-align: center; padding: 60px 20px;
    color: var(--text-light); grid-column: span 2;
    font-size: 13px;
}

/* ===== 创作者设置面板 ===== */
.creator-panel {
    background: var(--bg-card);
    border-radius: 14px;
    padding: 18px 18px 16px;
    margin: 14px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.creator-panel-title {
    font-size: 15px; font-weight: 700; color: var(--text-dark);
    margin-bottom: 12px;
    display: flex; align-items: center; gap: 6px;
}
.creator-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 0;
    border-top: 1px solid #F0F2F5;
    gap: 12px;
}
.creator-row:first-of-type { border-top: none; }
.creator-row-label { font-size: 14px; color: var(--text-dark); }
.creator-row-hint { font-size: 11px; color: var(--text-light); margin-top: 2px; }
.creator-toggle {
    width: 44px; height: 24px; border-radius: 12px;
    background: #C8CDD4;
    position: relative; cursor: pointer;
    transition: background 0.2s;
    border: none; flex-shrink: 0;
}
.creator-toggle.on { background: linear-gradient(135deg, #FF0050, #FF4F8B); }
.creator-toggle::after {
    content: '';
    position: absolute;
    top: 2px; left: 2px;
    width: 20px; height: 20px; border-radius: 50%;
    background: var(--bg-card);
    transition: left 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.creator-toggle.on::after { left: 22px; }
.creator-price-input {
    width: 92px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 14px;
    text-align: right;
    color: var(--text-dark);
}
.creator-price-input:focus { outline: none; border-color: #0EA5E9; }
.creator-price-unit { font-size: 12px; color: var(--text-light); margin-left: 4px; }
.creator-textarea {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 13px;
    min-height: 60px;
    margin-top: 8px;
    font-family: inherit;
    resize: vertical;
}
.creator-textarea:focus { outline: none; border-color: #0EA5E9; }
.creator-save-btn {
    margin-top: 12px; width: 100%;
    background: linear-gradient(135deg, #0EA5E9, #38BDF8);
    color: #fff; border: none;
    padding: 10px; border-radius: 10px;
    font-size: 14px; font-weight: 600; cursor: pointer;
}
.creator-save-btn:hover { transform: translateY(-1px); }

/* ===== 评论抽屉 ===== (从播放器侧栏 💬 按钮弹出)
   电脑版：右抽屉 width 420px 浮在 player-overlay 之上（视频继续播放）
   手机版：下半抽屉 height 75vh + 半透明背景遮罩 */
.comments-overlay {
    position: fixed; inset: 0; z-index: 10150;
    display: flex;
    align-items: stretch; justify-content: flex-end;
    padding-bottom: env(safe-area-inset-bottom, 0);
}
/* 电脑版背景透明，让背后视频可见；点击空白处关闭 */
.comments-backdrop {
    position: absolute; inset: 0;
    background: transparent;
    cursor: pointer;
}
.comments-panel {
    position: relative;
    background: #10182B; /* 实底深色（不依赖变量/主题，防止手机端透明导致文字看不清） */
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    display: flex; flex-direction: column;
    width: 420px;
    max-width: 100vw;
    box-shadow: -4px 0 24px rgba(0,0,0,0.12);
    animation: commentsSlideInRight 0.24s cubic-bezier(0.22, 1, 0.36, 1);
    padding-bottom: env(safe-area-inset-bottom, 0);
}
@keyframes commentsSlideInRight {
    from { transform: translateX(100%); }
    to   { transform: translateX(0); }
}

/* header */
.comments-header {
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card);
}
.comments-header-title {
    font-size: 15px; font-weight: 700; color: var(--text-dark);
    flex: 1; text-align: center;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    padding: 0 4px;
}
.comments-header-left,
.comments-header-right {
    width: 32px; display: flex; justify-content: center; flex-shrink: 0;
}
.comments-close-btn {
    width: 32px; height: 32px;
    border-radius: 50%; border: none; background: var(--bg-hover);
    font-size: 18px; color: var(--text-dark); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    line-height: 1;
}
.comments-close-btn:hover { background: #E4E8EE; }

/* tabs (评论 / AI 解析) */
.comments-tabs {
    flex-shrink: 0;
    display: flex; gap: 24px;
    padding: 0 18px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card);
}
.comments-tab {
    position: relative;
    padding: 12px 0;
    font-size: 15px; color: var(--text-medium);
    cursor: pointer;
    display: flex; align-items: baseline; gap: 4px;
    user-select: none;
    transition: color 0.15s;
}
.comments-tab:hover { color: var(--text-dark); }
.comments-tab.active {
    color: var(--text-dark); font-weight: 700;
}
.comments-tab.active::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -1px; height: 2px;
    background: #2D3436; border-radius: 2px;
}
.comments-tab-count {
    font-size: 13px; color: var(--text-light);
    font-weight: 500;
}
.comments-tab.active .comments-tab-count { color: var(--text-dark); }

/* bodies (评论列表 + AI 解析) */
.comments-bodies {
    flex: 1; position: relative; overflow: hidden;
    background: var(--bg-hover);
}
.comments-body {
    position: absolute; inset: 0;
    overflow-y: auto; -webkit-overflow-scrolling: touch;
    display: none;
    padding: 8px 16px 16px;
}
.comments-body.active { display: block; }
.comments-loading {
    text-align: center;
    color: var(--text-light);
    padding: 40px 20px;
    font-size: 14px;
}
.comments-empty {
    text-align: center; color: var(--text-light);
    padding: 80px 20px; font-size: 14px; line-height: 1.7;
}
.comments-empty .empty-icon {
    font-size: 56px; display: block;
    margin-bottom: 16px; opacity: 0.65;
}
.comments-empty--ai .ai-empty-title {
    font-size: 17px; font-weight: 700; color: var(--text-dark);
    margin-bottom: 8px;
}
.comments-empty--ai .ai-empty-desc {
    color: var(--text-light); line-height: 1.9; font-size: 13px;
}

/* 评论项 (抖音风：头像/昵称/内容/时间+地区+回复/双心点赞) */
.comment-item {
    display: flex; gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
}
.comment-item:last-child { border-bottom: none; }
.comment-avatar {
    flex-shrink: 0;
    width: 38px; height: 38px;
    border-radius: 50%;
    color: #fff; font-size: 15px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}
.comment-body { flex: 1; min-width: 0; }
.comment-meta {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 4px;
}
.comment-name {
    font-size: 13px; font-weight: 700; color: var(--text-dark);
}
.comment-text {
    font-size: 14px; color: var(--text-dark);
    line-height: 1.55;
    word-break: break-word;
    white-space: pre-wrap;
}
.comment-text .at-mention {
    color: #5B7CF5; font-weight: 600;
}
.comment-footer {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 6px; gap: 8px;
}
.comment-footer-left {
    display: flex; align-items: center; gap: 12px;
    font-size: 12px; color: var(--text-light);
    flex: 1; min-width: 0;
}
.comment-time {
    flex-shrink: 0;
}
.comment-region {
    color: var(--text-light);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    max-width: 80px;
}
.comment-reply-btn {
    color: var(--text-medium); cursor: pointer;
    background: none; border: none; padding: 0;
    font-size: 12px;
}
.comment-reply-btn:hover { color: var(--text-dark); }
.comment-likes {
    display: flex; align-items: center; gap: 4px;
    flex-shrink: 0;
}
.comment-like-btn,
.comment-dislike-btn {
    background: none; border: none; padding: 4px;
    cursor: pointer; font-size: 16px; line-height: 1;
    color: var(--text-light);
    transition: color 0.12s, transform 0.12s;
}
.comment-like-btn:hover { color: #FF6680; }
.comment-like-btn.liked { color: #FF0050; }
.comment-like-btn:active { transform: scale(0.9); }
/* 评论回复标记：回复 @某人 */
.comment-reply-tag { color: #3FB6FF; font-weight: 600; }
/* ===== 嵌套回复（抖音风）：回复挂在根评论下方 ===== */
.comment-replies {
    margin-top: 10px;
    padding: 4px 0 2px 10px;
    border-left: 2px solid rgba(143,163,200,0.18);
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.comment-reply-item { display: flex; gap: 8px; align-items: flex-start; }
.comment-avatar-sm { width: 26px !important; height: 26px !important; font-size: 12px !important; flex-shrink: 0; }
.comment-reply-name { font-size: 12px; }
.comment-reply-item .comment-text { font-size: 13px; margin: 2px 0; }
.comment-reply-item .comment-footer { font-size: 11px; }
.comment-expand-btn {
    background: none;
    border: none;
    color: #3FB6FF;
    font-size: 12px;
    cursor: pointer;
    padding: 6px 0 0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.comment-expand-btn:hover { color: #7DD3FC; }
.comment-expand-btn i { font-style: normal; font-size: 10px; }
/* ===== 🤖 zora AI 浮窗 + 对话 ===== */
#zora-fab {
    position: fixed;
    left: 14px;
    bottom: 92px;
    z-index: 10800;
    width: 84px; height: 100px;
    display: flex; flex-direction: column; align-items: center; justify-content: flex-end;
    cursor: grab;
    user-select: none; touch-action: none;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,.4));
}
#zora-pet { width: 84px; height: 96px; cursor: grab; }
#zora-pet.do-* { pointer-events: none; }
#zora-fab .zora-fab-label { font-size: 10px; color: #fff; font-weight: 700; margin-top: 0px; text-shadow: 0 1px 4px rgba(0,0,0,.6); }
#zora-fab:active { cursor: grabbing; }
@keyframes zoraFloat {
    0%, 100% { box-shadow: 0 6px 20px rgba(14,165,233,0.45); }
    50% { box-shadow: 0 10px 28px rgba(124,58,237,0.55); }
}
.zora-fab-icon { width: 46px; height: 46px; object-fit: contain; }
.zora-fab-label { font-size: 10px; color: #fff; font-weight: 700; margin-top: 1px; }
#zora-chat {
    position: fixed;
    right: 14px; bottom: 96px;
    z-index: 10801;
    width: 340px; max-width: calc(100vw - 20px);
    height: 460px; max-height: 70vh;
    background: #0E1526;
    border: 1px solid #1C2A45;
    border-radius: 18px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.5);
    display: flex; flex-direction: column;
    overflow: hidden;
}
.zora-chat-head {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 14px;
    background: linear-gradient(135deg, rgba(14,165,233,0.18), rgba(124,58,237,0.18));
    border-bottom: 1px solid #1C2A45;
    cursor: move;
}
.zora-chat-ava { width: 38px; height: 34px; object-fit: contain; }
.zora-chat-title { flex: 1; color: #E8F2FF; font-size: 14px; font-weight: 700; }
.zora-chat-status { font-size: 11px; color: #00B894; font-weight: 400; margin-top: 1px; }
.zora-chat-close {
    background: none; border: none; color: #8FA3C8;
    font-size: 20px; cursor: pointer; padding: 2px 8px;
}
.zora-chat-close:hover { color: #fff; }
.zora-chat-msgs {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex; flex-direction: column; gap: 10px;
}
.zora-msg {
    max-width: 82%;
    padding: 9px 13px;
    border-radius: 14px;
    font-size: 13px;
    line-height: 1.65;
    white-space: pre-wrap;
    word-break: break-word;
}
.zora-msg.bot { background: #1A2440; color: #E8F2FF; align-self: flex-start; border-bottom-left-radius: 4px; }
.zora-msg.bot.refused { background: rgba(231,76,60,0.15); color: #FF9F8A; border: 1px solid rgba(231,76,60,0.35); }
.zora-msg.me { background: linear-gradient(135deg, #0EA5E9, #2D7DD2); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.zora-typing span {
    display: inline-block; width: 6px; height: 6px; border-radius: 50%;
    background: #8FA3C8; margin-right: 4px;
    animation: zoraBlink 1s infinite;
}
.zora-typing span:nth-child(2) { animation-delay: 0.2s; }
.zora-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes zoraBlink { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
.zora-chat-inputbar {
    display: flex; gap: 8px;
    padding: 10px;
    border-top: 1px solid #1C2A45;
    background: #0B1322;
}
.zora-chat-inputbar input {
    flex: 1;
    background: #1A2440; border: 1px solid #1C2A45; border-radius: 20px;
    color: #E8F2FF; font-size: 13px; padding: 9px 14px; outline: none;
}
.zora-chat-inputbar input:focus { border-color: #0EA5E9; }
.zora-chat-send {
    background: linear-gradient(135deg, #0EA5E9, #7C3AED);
    border: none; border-radius: 20px;
    color: #fff; font-size: 13px; font-weight: 600;
    padding: 8px 16px; cursor: pointer;
}
.zora-chat-send:active { transform: scale(0.96); }
/* ===== zora 评论区解析报告 ===== */
.zora-analysis { padding: 14px; }
.zora-analysis-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.zora-analysis-avatar {
    width: 44px; height: 40px;
    object-fit: contain;
    filter: drop-shadow(0 2px 5px rgba(0,0,0,.4));
}
.zora-analysis-name { color: #E8F2FF; font-weight: 700; font-size: 14px; }
.zora-analysis-sub { color: #8FA3C8; font-size: 11px; margin-top: 1px; }
.zora-analysis-output {
    background: rgba(26,36,64,0.6);
    border: 1px solid #1C2A45;
    border-radius: 12px;
    padding: 12px;
    min-height: 120px;
    font-size: 13px; line-height: 1.9; color: #DCE6F5;
    white-space: pre-wrap;
}
.zora-analysis-title { color: #7DD3FC; font-weight: 700; font-size: 14px; }
.zora-analysis-tip { color: #8FA3C8; font-size: 12.5px; line-height: 1.8; }
.zora-analysis-loading span {
    display: inline-block; width: 7px; height: 7px; border-radius: 50%;
    background: #7DD3FC; margin-right: 5px;
    animation: zoraBlink 1s infinite;
}
.zora-analysis-loading span:nth-child(2) { animation-delay: 0.2s; }
.zora-analysis-loading span:nth-child(3) { animation-delay: 0.4s; }
.zora-analysis-btn {
    width: 100%; margin-top: 12px;
    background: linear-gradient(135deg, #0EA5E9, #7C3AED);
    border: none; border-radius: 22px;
    color: #fff; font-size: 14px; font-weight: 700;
    padding: 12px; cursor: pointer;
    transition: transform 0.15s, opacity 0.15s;
}
.zora-analysis-btn:active { transform: scale(0.97); }
.zora-analysis-btn:disabled { opacity: 0.6; cursor: wait; }
.comment-dislike-btn:hover { color: var(--text-medium); }
.comment-like-count {
    font-size: 12px; color: var(--text-light);
    min-width: 14px; text-align: left;
}
.comment-likes.liked .comment-like-count {
    color: #FF0050; font-weight: 600;
}
.comment-actions {
    margin-top: 6px;
    display: flex; gap: 12px;
}
.comment-delete-btn {
    background: none; border: none; padding: 0;
    font-size: 12px; color: var(--text-light); cursor: pointer;
}
.comment-delete-btn:hover { color: #FF0050; }

/* input bar */
.comments-input-bar {
    flex-shrink: 0;
    display: flex; align-items: center; gap: 6px;
    padding: 8px 12px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
    padding-bottom: calc(8px + env(safe-area-inset-bottom, 0));
}
.comments-input {
    flex: 1; min-width: 0;
    height: 36px;
    padding: 0 14px;
    border-radius: 18px;
    border: 1px solid #E4E8EE;
    background: var(--bg-hover);
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s, background 0.15s;
}
.comments-input:focus {
    border-color: #FF0050;
    background: var(--bg-card);
}
.comments-icon-btn {
    flex-shrink: 0;
    width: 36px; height: 36px;
    border-radius: 50%; border: none;
    background: transparent;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-medium);
    display: flex; align-items: center; justify-content: center;
    transition: background 0.12s;
}
.comments-icon-btn:hover { background: var(--bg-hover); }
.comments-send-btn {
    flex-shrink: 0;
    height: 36px; padding: 0 14px;
    border-radius: 18px; border: none;
    background: linear-gradient(135deg, #FF0050, #FF4D8F);
    color: #fff; font-size: 13px; font-weight: 700;
    cursor: pointer;
    transition: transform 0.12s, opacity 0.12s;
}
.comments-send-btn:active { transform: scale(0.96); }
.comments-send-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 手机版 (<768px)：下半抽屉 + 暗遮罩 */
@media (max-width: 767px) {
    .comments-overlay {
        align-items: flex-end;
        background: rgba(0, 0, 0, 0.4);
    }
    .comments-backdrop {
        background: transparent;
    }
    .comments-panel {
        width: 100%;
        max-width: 100vw;
        height: 78vh;
        max-height: 78vh;
        border-radius: 16px 16px 0 0;
        box-shadow: 0 -4px 24px rgba(0,0,0,0.18);
        animation: commentsSlideInBottom 0.26s cubic-bezier(0.22, 1, 0.36, 1);
    }
    @keyframes commentsSlideInBottom {
        from { transform: translateY(100%); }
        to   { transform: translateY(0); }
    }
}

/* ===== 私信抽屉 ===== */
.chat-overlay {
    position: fixed; inset: 0; z-index: 10100;
    background: var(--bg-card);
    display: flex; flex-direction: column;
    padding-bottom: env(safe-area-inset-bottom, 0);
}
.chat-header {
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card);
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.chat-other { font-size: 16px; font-weight: 700; color: var(--text-dark); }
.chat-close-btn {
    border: none; background: var(--bg-hover);
    width: 32px; height: 32px; border-radius: 50%;
    font-size: 18px; color: var(--text-medium); cursor: pointer;
}
.chat-list {
    flex: 1; overflow-y: auto;
    padding: 16px;
    background: var(--bg-hover);
    display: flex; flex-direction: column;
    gap: 10px;
}
.chat-msg { display: flex; gap: 8px; max-width: 80%; }
.chat-msg.me { margin-left: auto; flex-direction: row-reverse; }
.chat-msg-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 13px; font-weight: 700;
    flex-shrink: 0;
}
.chat-msg-bubble {
    background: var(--bg-card); border-radius: 12px;
    padding: 8px 12px;
    font-size: 14px; color: var(--text-dark);
    word-wrap: break-word;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    line-height: 1.45;
}
.chat-msg.me .chat-msg-bubble {
    background: linear-gradient(135deg, #0EA5E9, #38BDF8);
    color: #fff;
}
.chat-input-bar {
    flex-shrink: 0;
    display: flex; align-items: center; gap: 8px;
    padding: 10px 12px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
}
.chat-input {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 8px 14px;
    font-size: 14px;
}
.chat-input:focus { outline: none; border-color: #0EA5E9; }
.chat-send-btn {
    background: linear-gradient(135deg, #0EA5E9, #38BDF8);
    color: #fff; border: none;
    border-radius: 18px;
    padding: 8px 18px;
    font-size: 13px; font-weight: 600; cursor: pointer;
}

/* ===== 聊天页新 UI（第 7 轮） ===== */
/* 返回按钮（左上角） */
.chat-back-btn {
    border: none; background: var(--bg-hover);
    width: 32px; height: 32px; border-radius: 50%;
    font-size: 18px; color: var(--text-medium); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.chat-back-btn:hover { background: #E4E7EC; color: var(--text-dark); }

/* 消息时间戳 */
.chat-msg-meta {
    font-size: 10px; color: var(--text-light);
    margin-top: 3px; text-align: right;
}

/* 引用消息预览（气泡上方） */
.chat-msg-quote {
    background: rgba(14, 165, 233, 0.08);
    border-left: 3px solid #0EA5E9;
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 12px; color: var(--text-medium);
    margin-bottom: 4px;
    max-width: 260px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.chat-msg.me .chat-msg-quote {
    background: rgba(255,255,255,0.18);
    border-left-color: rgba(255,255,255,0.8);
    color: rgba(255,255,255,0.92);
}

/* 引用提示条（输入框上方） */
.chat-quote-bar {
    flex-shrink: 0;
    display: flex; align-items: center; gap: 10px;
    padding: 6px 12px;
    background: #E0F2FE;
    border-top: 1px solid #E4E0FF;
}
.chat-quote-content { flex: 1; min-width: 0; }
.chat-quote-label {
    font-size: 11px; color: #0EA5E9; font-weight: 600;
    margin-bottom: 1px;
}
.chat-quote-text {
    font-size: 12px; color: var(--text-medium);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.chat-quote-cancel {
    border: none; background: rgba(14, 165, 233, 0.15);
    width: 22px; height: 22px; border-radius: 50%;
    font-size: 13px; color: #0EA5E9; cursor: pointer;
    flex-shrink: 0;
}

/* 模式切换按钮（键盘/麦克风） */
.chat-mode-toggle {
    border: none; background: var(--bg-hover);
    width: 36px; height: 36px; border-radius: 50%;
    font-size: 17px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: all 0.15s;
}
.chat-mode-toggle:hover { background: #E4E7EC; transform: scale(1.06); }

/* 长按说话按钮 (现在已改为点一下开始 / 再点一下结束) */
.chat-voice-btn {
    flex: 1;
    border: 1.5px solid var(--border-color);
    background: var(--bg-card);
    border-radius: 18px;
    padding: 9px 14px;
    font-size: 14px; font-weight: 600; color: var(--text-dark);
    cursor: pointer;
    user-select: none; -webkit-user-select: none;
    -webkit-touch-callout: none;
    touch-action: none;
    transition: all 0.15s;
}
.chat-voice-btn:active {
    background: #E0F2FE; border-color: #0EA5E9; color: #0EA5E9;
}
.chat-voice-btn--recording {
    background: linear-gradient(135deg, #0EA5E9 0%, #38BDF8 100%);
    border-color: #0EA5E9;
    color: #fff;
    animation: lcPulseRec 1.2s ease-in-out infinite;
}
@keyframes lcPulseRec {
    0%, 100% { box-shadow: 0 0 0 0 rgba(14,165,233,0.55); }
    50%      { box-shadow: 0 0 0 8px rgba(14,165,233,0);   }
}

/* + 按钮 */
.chat-plus-btn {
    border: none; background: var(--bg-hover);
    width: 36px; height: 36px; border-radius: 50%;
    font-size: 20px; font-weight: 700; color: var(--text-medium); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: all 0.15s;
}
.chat-plus-btn:hover { background: #E4E7EC; color: var(--text-dark); }
.chat-collapse-btn {
    border: none; background: transparent;
    color: var(--text-light);
    font-size: 11px; cursor: pointer;
    width: 18px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: transform 0.2s ease, color 0.2s ease;
    margin-left: -4px;
}
.chat-collapse-btn:hover { color: var(--text-dark); }
.chat-collapse-btn.open { transform: rotate(180deg); color: #0EA5E9; }

/* + 弹出面板 */
.chat-plus-panel {
    flex-shrink: 0;
    display: flex; gap: 14px;
    padding: 14px 16px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
}
.chat-plus-item {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    border: none; background: none; cursor: pointer;
    padding: 4px;
}
.chat-plus-icon {
    width: 52px; height: 52px; border-radius: 14px;
    background: #E0F2FE;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    transition: all 0.15s;
}
.chat-plus-item:hover .chat-plus-icon {
    background: #E4DEFF; transform: scale(1.05);
}
.chat-plus-label { font-size: 12px; color: var(--text-medium); }

/* 表情面板 */
.chat-emoji-panel {
    flex-shrink: 0;
    max-height: 220px; overflow-y: auto;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 8px;
}
.chat-emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
    gap: 2px;
}
.chat-emoji-item {
    border: none; background: none;
    font-size: 22px; cursor: pointer;
    padding: 4px; border-radius: 8px;
    line-height: 1.2;
}
.chat-emoji-item:hover { background: var(--bg-hover); }

/* 录音提示层 */
.chat-record-tip {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex; align-items: center; justify-content: center;
    z-index: 15;
}
.chat-record-tip-inner {
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    background: rgba(0,0,0,0.75);
    border-radius: 16px;
    padding: 24px 32px;
}
.chat-record-tip-icon { font-size: 40px; animation: voicePulse 1.2s infinite; }
@keyframes voicePulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: 0.75; }
}
.chat-record-tip-text { font-size: 14px; color: #fff; }
.chat-record-tip-cancel { font-size: 12px; color: rgba(255,255,255,0.7); }

/* 右键消息菜单 */
.chat-msg-menu {
    position: absolute;
    display: flex; flex-direction: column;
    background: var(--bg-card);
    border-radius: 10px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.16);
    padding: 4px;
    z-index: 50;
    min-width: 120px;
}
.chat-msg-menu-item {
    border: none; background: none;
    text-align: left;
    padding: 8px 14px;
    font-size: 13px; color: var(--text-dark);
    border-radius: 6px; cursor: pointer;
    white-space: nowrap;
}
.chat-msg-menu-item:hover { background: #E0F2FE; color: #0EA5E9; }
.chat-msg-menu-item.cancel { color: var(--text-light); }

/* 撤回的气泡 */
.chat-msg-bubble.recalled {
    background: transparent !important;
    box-shadow: none;
    color: var(--text-light);
    font-size: 12px; font-style: italic;
    padding: 2px 4px;
}

/* 图片 / 视频气泡 */
.chat-msg-bubble.image { padding: 3px; }
.chat-msg-bubble.image img {
    display: block;
    max-width: 220px; max-height: 220px;
    border-radius: 9px;
    cursor: zoom-in;
}

/* 文件气泡 */
.chat-msg-bubble.file { min-width: 140px; }
.chat-msg-bubble.file a {
    color: #0EA5E9; text-decoration: none; font-size: 13px; font-weight: 600;
    word-break: break-all;
}
.chat-msg.me .chat-msg-bubble.file a { color: #fff; }
.chat-msg.me .chat-msg-bubble.file div { color: rgba(255,255,255,0.75) !important; }

/* 语音气泡 */
.chat-msg-bubble.voice {
    display: flex; align-items: center; gap: 8px;
    min-width: 90px; cursor: pointer;
}
.chat-voice-icon {
    font-size: 15px;
    width: 26px; height: 26px; border-radius: 50%;
    background: rgba(14, 165, 233, 0.15);
    display: flex; align-items: center; justify-content: center;
    color: #0EA5E9; flex-shrink: 0;
}
.chat-msg.me .chat-voice-icon {
    background: rgba(255,255,255,0.25); color: #fff;
}
.chat-voice-wave {
    width: 44px; height: 14px; flex-shrink: 0;
    background: repeating-linear-gradient(90deg,
        currentColor 0 2px, transparent 2px 5px);
    opacity: 0.45;
    border-radius: 2px;
}
.chat-voice-duration { font-size: 12px; opacity: 0.85; flex-shrink: 0; }

/* ===== 消息列表 ===== */
.msg-list {
    padding: 8px 12px;
    background: #10182B; /* 实底面板：不透出首页背景插画，保证预览文字清晰 */
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}
.msg-row {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 8px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
}
.msg-row:hover { background: var(--bg-hover); }
.msg-avatar {
    width: 44px; height: 44px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 17px; font-weight: 700;
    flex-shrink: 0;
}
.msg-row-body { flex: 1; min-width: 0; }
.msg-row-top { display: flex; align-items: center; justify-content: space-between; }
.msg-row-name { font-size: 14px; font-weight: 600; color: var(--text-dark); }
.msg-row-time { font-size: 11px; color: var(--text-light); }
.msg-row-preview {
    font-size: 12px; color: var(--text-medium);
    margin-top: 2px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.msg-unread {
    background: #FF0050; color: #fff;
    border-radius: 8px;
    padding: 1px 6px;
    font-size: 11px; font-weight: 600;
    flex-shrink: 0;
}
.msg-empty { text-align: center; padding: 80px 20px; color: var(--text-light); }
.msg-empty-icon { font-size: 48px; margin-bottom: 8px; }

/* ===== 发布作品抽屉 ===== */
.upload-overlay {
    position: fixed; inset: 0; z-index: 110;
    background: rgba(0,0,0,0.55);
    display: flex; align-items: center; justify-content: center;
    padding: 16px;
}
.upload-card {
    background: var(--bg-card); border-radius: 16px;
    width: 100%; max-width: 480px;
    padding: 22px 22px 24px;
    max-height: 90vh; overflow-y: auto;
}
.upload-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 14px;
}
.upload-title { font-size: 17px; font-weight: 700; color: var(--text-dark); }
.upload-close-btn {
    border: none; background: var(--bg-hover);
    width: 28px; height: 28px; border-radius: 50%;
    cursor: pointer; color: var(--text-medium); font-size: 16px;
}
.upload-type-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.upload-type {
    flex: 1 1 30%; padding: 9px 6px;
    border-radius: 10px;
    border: 1.5px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-medium);
    font-size: 13px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.15s;
    white-space: nowrap;
}
.upload-type.active {
    border-color: #FF0050;
    color: #FF0050;
    background: rgba(255,45,120,0.10);
}
/* 发布抽屉快捷标签 chip */
.upload-chip {
    padding: 6px 14px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-medium);
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s;
}
.upload-chip:hover { border-color: #0EA5E9; color: #0EA5E9; }
.upload-chip.active {
    border-color: #0EA5E9;
    color: #0EA5E9;
    background: rgba(14,165,233,0.12);
    font-weight: 600;
}
/* ===== 首页分组子栏目（短视频组 / 文字组）=====*/
/* 首页背景图（梦幻插画 + 白色轻纱蒙版，保证卡片/文字可读） */
/* 背景图已提升为全软件背景（.page-container 直铺），此处仅保留占位结构 */
/* ===== 首页分组子栏目（短视频组 / 文字组）===== */
.feed-subtabs {
    display: flex; gap: 8px;
    padding: 10px 16px 0;
    overflow-x: auto;
    scrollbar-width: none;
}
.feed-subtabs::-webkit-scrollbar { display: none; }
.feed-subtab {
    padding: 6px 14px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-medium);
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s;
    flex-shrink: 0;
}
.feed-subtab.active {
    border-color: #FF0050;
    color: #FF0050;
    background: rgba(255,45,120,0.10);
    font-weight: 600;
}
.upload-input,
.upload-textarea {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 14px;
    margin-bottom: 10px;
    font-family: inherit;
}
.upload-textarea { min-height: 70px; resize: vertical; }
.upload-input:focus,
.upload-textarea:focus { outline: none; border-color: #0EA5E9; }
.upload-meta-row {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 10px;
}
.upload-meta-row label { font-size: 13px; color: var(--text-medium); min-width: 38px; }
.upload-input-sm {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 9px 12px;
    font-size: 13px;
}
.upload-tags-row {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 14px;
}
.upload-tags-row label { font-size: 13px; color: var(--text-medium); min-width: 38px; }
.upload-submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #FF0050, #FF4F8B);
    color: #fff; border: none;
    padding: 12px; border-radius: 12px;
    font-size: 15px; font-weight: 600; cursor: pointer;
}
.upload-submit-btn:hover { transform: translateY(-1px); }

/* ===== 底部 + 号悬浮按钮 ===== */
.bottombar-fab-wrap {
    display: flex; align-items: center; justify-content: center;
    width: 56px; height: 56px;
    margin: -16px 0 -16px 0;
    background: linear-gradient(135deg, #FF0050, #FF4F8B 50%, #0EA5E9);
    border-radius: 50%;
    border: 3px solid #F3F4F8;
    box-shadow: 0 6px 20px rgba(255, 0, 80, 0.35);
    cursor: pointer;
    flex-shrink: 0;
}
.bottombar-fab-icon {
    font-size: 30px; color: #fff;
    font-weight: 300; line-height: 1;
    margin-top: -2px;
}

/* ============================================================
 * 【新增】抖音式首页 + 全局返回按钮 + 作品播放/私信/作者页
 * ============================================================ */

/* ===== 全局返回按钮 · 顶部固定位 ===== */
.topbar-back-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-dark);
    border-radius: 20px;
    padding: 5px 14px 5px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    margin-right: 10px;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}
.topbar-back-btn:hover { border-color: #0EA5E9; color: #0EA5E9; }
.topbar-back-btn::before { content: '←'; font-size: 15px; line-height: 1; }

/* ===== 抖音式首页 · 顶部 tab 栏 ===== */
.home-tabs {
    position: relative;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,0.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0 6px;
    display: flex;
    gap: 2px;
    overflow-x: visible;
    justify-content: space-around;
    -ms-overflow-style: none;
    scrollbar-width: none;
}
.home-tabs::-webkit-scrollbar { display: none; }
.home-tab {
    flex: 1 1 0;
    min-width: 0;
    padding: 12px 4px 10px;
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
    border: none;
    background: transparent;
    position: relative;
    font-weight: 500;
}
.home-tab.active { color: var(--text-dark); font-weight: 700; }
.home-tab.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, #FF0050, #25F4EE);
}
/* ===== 作品全屏播放器 ===== */
.player-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: #000;
    display: flex;
}
.player-stage {
    flex: 1 1 auto;
    min-width: 0; /* 第 55 轮：flex 子元素默认 min-width:auto 让它撑出 flex；0 让它真的占满剩余空间 */
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: #000; /* 第 55 轮：纯黑底，与抖音全屏播放一致，避免视频未加载时露出紫蓝渐变 */
}
.player-stage-art {
    width: 70%;
    height: 70%;
    border-radius: 24px;
    box-shadow: 0 12px 60px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 180px;
    position: relative;
    overflow: hidden;
}
.player-stage-art::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.18), rgba(0,0,0,0.2));
}
.player-stage-art-emoji { position: relative; z-index: 1; filter: drop-shadow(0 6px 16px rgba(0,0,0,0.35)); }
.player-play-btn {
    position: absolute;
    z-index: 10;
    width: 52px;   /* 抖音式小号播放键（2026-10-08：84px 太大） */
    height: 52px;
    border-radius: 50%;
    background: rgba(0,0,0,0.35);
    border: none;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    transition: transform 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* 作品集 tab 样式已并入上方胶囊定义（避免重复定义漂移） */

.workset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 12px 8px;
    /* 跟首页 feed-grid 一致：2/3/4/5 列响应式铺满，去掉过窄约束 */
    margin: 0 auto 80px;
}
@media (min-width: 768px) {
    .workset-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 12px 14px; }
}
@media (min-width: 1080px) {
    .workset-grid { grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 12px 18px; }
}
@media (min-width: 1320px) {
    .workset-grid { grid-template-columns: repeat(5, 1fr); gap: 14px; padding: 12px 20px; }
}
.workset-item {
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-card);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    transition: transform 0.18s, box-shadow 0.18s;
}
.workset-item:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.10); }
/* 第 38 轮：跟首页一致改 16:9（padding-top: 56.25%），之前 130% 让视频封面占满左半屏过大 */
.workset-cover {
    width: 100%;
    padding-top: 56.25%;
    position: relative;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
.workset-cover-emoji {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}
.workset-cover-type-tag {
    position: absolute; top: 6px; left: 6px;
    background: linear-gradient(90deg, rgba(255,0,80,0.85), rgba(37,244,238,0.85));
    color: #fff; font-size: 10px;
    padding: 2px 6px; border-radius: 8px;
    font-weight: 600;
}
.workset-cover-dur {
    position: absolute;
    bottom: 4px;
    right: 4px;
    background: rgba(0,0,0,0.55);
    color: #fff;
    font-size: 10px;
    padding: 1px 4px;
    border-radius: 3px;
}
.workset-cover-play {
    position: absolute; inset: 0;
    margin: auto;
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.45);
    color: #fff;
    font-size: 16px;
    border-radius: 50%;
    pointer-events: none;
}
.workset-item-info {
    padding: 6px 8px 8px;
}
.workset-item-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.3;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 32px;
}
.workset-item-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 10px;
    color: var(--text-light);
    margin-top: 2px;
}

.workset-script-item {
    margin: 8px 12px;
    padding: 14px 16px;
    border-radius: 12px;
    background: var(--bg-card);
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.workset-script-title { font-size: 15px; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.workset-script-preview { font-size: 13px; color: var(--text-medium); line-height: 1.55; }
.workset-script-meta { margin-top: 6px; font-size: 11px; color: var(--text-light); }
.workset-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
    grid-column: span 2;
    font-size: 13px;
}

/* ===== 创作者设置面板 ===== */
.creator-panel {
    background: var(--bg-card);
    border-radius: 14px;
    padding: 18px 18px 16px;
    margin: 14px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.creator-panel-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.creator-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-top: 1px solid #F0F2F5;
    gap: 12px;
}
.creator-row:first-of-type { border-top: none; }
.creator-row-label {
    font-size: 14px;
    color: var(--text-dark);
}
.creator-row-hint {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 2px;
}
.creator-toggle {
    width: 44px;
    height: 24px;
    border-radius: 12px;
    background: #C8CDD4;
    position: relative;
    cursor: pointer;
    transition: background 0.2s;
    border: none;
    flex-shrink: 0;
}
.creator-toggle.on { background: linear-gradient(135deg, #FF0050, #FF4F8B); }
.creator-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-card);
    transition: left 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.creator-toggle.on::after { left: 22px; }
.creator-price-input {
    width: 92px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 14px;
    text-align: right;
    color: var(--text-dark);
}
.creator-price-input:focus { outline: none; border-color: #0EA5E9; }
.creator-price-unit { font-size: 12px; color: var(--text-light); margin-left: 4px; }
.creator-textarea {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 13px;
    min-height: 60px;
    margin-top: 8px;
    font-family: inherit;
    resize: vertical;
}
.creator-textarea:focus { outline: none; border-color: #0EA5E9; }
.creator-save-btn {
    margin-top: 12px;
    width: 100%;
    background: linear-gradient(135deg, #0EA5E9, #38BDF8);
    color: #fff;
    border: none;
    padding: 10px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}
.creator-save-btn:hover { transform: translateY(-1px); }

/* ===== 底部 + 号悬浮按钮 ===== */
.bottombar-fab-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin: -16px 0 -16px 0;
    background: linear-gradient(135deg, #FF0050, #FF4F8B 50%, #0EA5E9);
    border-radius: 50%;
    border: 3px solid #F3F4F8;
    box-shadow: 0 6px 20px rgba(255, 0, 80, 0.35);
    cursor: pointer;
    flex-shrink: 0;
}
.bottombar-fab-icon {
    font-size: 30px;
    color: #fff;
    font-weight: 300;
    line-height: 1;
    margin-top: -2px;
}

/* ============================================
 * 第五轮：大神讲解 + 本地文件上传
 * ============================================ */

/* 课程商城顶部双入口（大神讲解 / 普及课程） */
.course-entries { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.course-entry {
    display: flex; align-items: center; gap: 12px; padding: 14px;
    background: var(--bg-card); border-radius: 14px; cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,.06);
    transition: transform .15s, box-shadow .15s;
    border: 2px solid transparent;
    min-width: 0; /* 防长描述把卡片/轨道撑破屏幕 */
}
.course-entry:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(14,165,233,.18); border-color: var(--primary-light); }
.course-entry-icon {
    width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; font-size: 24px;
    color: #fff;
    transition: transform .2s, box-shadow .2s, filter .2s;
}
.course-entry-body { flex: 1; min-width: 0; }
.course-entry-name { font-size: 15px; font-weight: 700; color: var(--text-dark); margin-bottom: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.course-entry-desc { font-size: 11px; color: var(--text-medium); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* 手机端：两张入口卡上下堆叠（各占满行，不再横向挤出屏幕） */
@media (max-width: 600px) {
    .course-entries { grid-template-columns: 1fr; gap: 10px; margin-bottom: 14px; }
    .course-entry { padding: 12px 14px; }
}

/* 激活态：图标变色 + 卡片描边 + 微缩放
   配合内联 style 的渐变色，配合 box-shadow 体现"对应界面" */
.course-entry--active { border-color: rgba(14,165,233,.55); background: linear-gradient(135deg, rgba(14,165,233,.12), rgba(125,211,252,.16)), var(--bg-card); }
.course-entry--active .course-entry-icon { transform: scale(1.08); box-shadow: 0 6px 14px rgba(14,165,233,.35); filter: saturate(1.4) brightness(1.05); }
.course-entry--active .course-entry-name { color: #0284C7; }

/* 大神讲解页面 */
.tut-entry-row { display: flex; justify-content: flex-end; margin-bottom: 10px; }
.tut-entry-btn {
    background: linear-gradient(135deg, #0EA5E9, #7DD3FC); color: #fff;
    border: none; padding: 10px 18px; border-radius: 20px;
    font-size: 13px; font-weight: 700; cursor: pointer;
    box-shadow: 0 4px 12px rgba(14,165,233,.3);
    transition: transform .15s, box-shadow .15s;
}
.tut-entry-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(14,165,233,.4); }

.tut-card {
    /* 第五轮：横版列表样式已被 B 站风格双列网格 (.tut-grid-card) 取代，新页面不再使用 */
    display: none;
}
/* 个人中心教程历史 · 行内"我的"标识（仍使用） */
.tut-mine-tag { background: #00B894; color: #fff; padding: 1px 8px; border-radius: 8px; font-size: 10px; font-weight: 600; }
.tut-tag {
    background: #E0F2FE; color: var(--primary); padding: 2px 9px;
    border-radius: 10px; font-size: 11px; font-weight: 600;
}

/* 教程详情 */
.tut-detail { display: flex; flex-direction: column; }
.tut-detail-head { padding: 18px; border-radius: 14px; color: #fff; display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.tut-detail-emoji { font-size: 40px; }
.tut-detail-title { font-size: 17px; font-weight: 800; line-height: 1.4; }
.tut-detail-sub { font-size: 12px; opacity: .9; }
.tut-summary { margin: 14px 2px 4px; padding: 12px 14px; background: rgba(63,182,255,0.08); border-left: 3px solid var(--primary-light); border-radius: 0 10px 10px 0; font-size: 13.5px; color: var(--text-medium); line-height: 1.7; }
.tut-detail-body { font-size: 14px; color: var(--text-dark); line-height: 1.8; }
.tut-detail-body h4 { font-size: 15.5px; font-weight: 800; margin: 18px 0 8px; color: var(--text-dark); padding-left: 10px; border-left: 4px solid var(--primary); }
.tut-detail-body h5 { font-size: 14.5px; font-weight: 700; margin: 14px 0 6px; color: var(--text-dark); }
.tut-detail-body p { margin: 8px 0; }
.tut-detail-body ul { margin: 8px 0; padding-left: 22px; }
.tut-detail-body li { margin: 4px 0; }
.tut-detail-body b { color: var(--text-dark); }
.tut-detail-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.tut-detail-foot { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; color: var(--text-medium); margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border-color); }
.tut-code {
    background: #2D3436; color: #DFE6E9; padding: 12px 14px; border-radius: 10px;
    overflow-x: auto; font-size: 12.5px; line-height: 1.6; margin: 10px 0;
    font-family: Consolas, Monaco, monospace; white-space: pre-wrap; word-break: break-all;
}
.tut-inline-code { background: #1A2440; color: #D63031; padding: 1px 6px; border-radius: 6px; font-size: 12.5px; font-family: Consolas, Monaco, monospace; }
.tut-quote { margin: 10px 0; padding: 10px 14px; background: rgba(253,203,110,0.10); border-left: 3px solid #FDCB6E; border-radius: 0 10px 10px 0; color: #7f6000; font-size: 13.5px; }
.tut-media-video { width: 100%; border-radius: 12px; margin-top: 12px; background: #000; max-height: 400px; }
.tut-media-image { width: 100%; border-radius: 12px; margin-top: 12px; object-fit: cover; }
/* 教程正文内嵌图片（![说明](地址) 语法）：可点击放大 */
.tut-body-img { margin: 10px 0; text-align: center; }
.tut-body-img img {
    max-width: 100%; max-height: 60vh; object-fit: contain;
    border-radius: 10px; cursor: zoom-in;
    box-shadow: 0 2px 10px rgba(0,0,0,0.12);
    transition: transform 0.15s;
}
.tut-body-img img:hover { transform: scale(1.01); }

/* 发布教程表单 */
.tut-form { display: flex; flex-direction: column; gap: 14px; }
.tut-form-row { display: flex; flex-direction: column; gap: 6px; }
.tut-form-row > label { font-size: 12.5px; font-weight: 700; color: var(--text-medium); }
.tut-form-tip { font-size: 11.5px; color: var(--text-light); }
.tut-cat-row { display: flex; gap: 8px; flex-wrap: wrap; }
.tut-cat-btn, .tut-media-btn {
    border: 1.5px solid var(--border-color); background: var(--bg-card); color: var(--text-medium);
    padding: 8px 14px; border-radius: 10px; font-size: 13px; cursor: pointer;
    transition: all .15s;
}
.tut-cat-btn.active, .tut-media-btn.active { border-color: var(--primary); background: #E0F2FE; color: var(--primary); font-weight: 700; }
.tut-input {
    border: 1.5px solid var(--border-color); border-radius: 10px; padding: 10px 12px;
    font-size: 14px; outline: none; font-family: inherit; width: 100%; box-sizing: border-box;
}
.tut-input:focus { border-color: var(--primary-light); }
.tut-textarea {
    border: 1.5px solid var(--border-color); border-radius: 10px; padding: 10px 12px;
    font-size: 13.5px; outline: none; font-family: inherit; min-height: 180px;
    line-height: 1.7; resize: vertical; width: 100%; box-sizing: border-box;
}
.tut-textarea:focus { border-color: var(--primary-light); }
.tut-upload-btn {
    border: 1.5px dashed var(--primary-light); background: rgba(63,182,255,0.08); color: var(--primary);
    padding: 12px; border-radius: 10px; font-size: 13.5px; font-weight: 600; cursor: pointer;
    transition: all .15s;
}
.tut-upload-btn:hover { background: #E0F2FE; border-color: var(--primary); }
.tut-file-info {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    background: rgba(0,184,148,0.12); border: 1px solid #B2F2C6; border-radius: 8px;
    padding: 8px 10px; font-size: 12.5px; color: #1B7A3E;
}
.tut-file-remove {
    border: none; background: rgba(0,0,0,.08); color: #444; width: 22px; height: 22px;
    border-radius: 50%; font-size: 14px; cursor: pointer; line-height: 1; flex-shrink: 0;
}
.tut-submit-btn {
    background: linear-gradient(135deg, #0EA5E9, #7DD3FC); color: #fff; border: none;
    padding: 13px; border-radius: 12px; font-size: 15px; font-weight: 700; cursor: pointer;
    box-shadow: 0 4px 12px rgba(14,165,233,.3); margin-top: 4px;
    transition: transform .15s;
}
.tut-submit-btn:hover { transform: translateY(-1px); }
.tut-del-btn {
    border: 1px solid #FFE0E0; background: rgba(255,107,107,0.10); color: #D63031;
    padding: 4px 10px; border-radius: 8px; font-size: 11.5px; cursor: pointer; flex-shrink: 0;
}
.tut-del-btn:hover { background: rgba(255,107,107,0.20); }

/* ===== 账号设置 · 头像选择器 ===== */
.settings-avatar-preview {
    width: 80px; height: 80px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 800; font-size: 40px;
    border: 3px solid #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.10);
    line-height: 1;
}
/* ===== 本地上传图片头像 ===== */
.topbar-avatar img {
    width: 100%; height: 100%;
    border-radius: 50%; object-fit: cover; display: block;
}
.settings-avatar-preview--img {
    display: block; background: #f0f0f5;
    object-fit: cover;
}
.profile-avatar-large--img {
    display: block; object-fit: cover;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
.author-avatar--img {
    display: block; object-fit: cover;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    border: 3px solid #fff;
}
.avatar-picker {
    display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px;
    margin-top: 12px;
}
.avatar-option {
    aspect-ratio: 1 / 1; border: 2px solid transparent; background: #fafbff;
    border-radius: 10px; font-size: 20px; cursor: pointer; padding: 0;
    display: flex; align-items: center; justify-content: center;
    transition: transform .12s, border-color .12s, background .12s;
    -webkit-tap-highlight-color: transparent;
}
.avatar-option:hover { background: #eef2ff; transform: scale(1.08); }
.avatar-option.active { border-color: var(--text-medium); background: var(--bg-card); box-shadow: 0 0 0 1px #636E72; }
.avatar-option--reset { font-size: 13px; color: #888; font-weight: 700; }
@media (max-width: 480px) {
    .avatar-picker { grid-template-columns: repeat(6, 1fr); }
}

/* ===== 作品集 · 删除按钮（默认常显，hover 更亮） ===== */
.workset-del-btn {
    position: absolute; top: 6px; right: 6px;
    width: 30px; height: 30px; border-radius: 50%;
    border: none; background: rgba(214, 48, 49, 0.92); color: #fff;
    font-size: 15px; font-weight: 600; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    opacity: 0.85; transition: opacity .15s, background .15s, transform .15s, box-shadow .15s;
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
    z-index: 3;
}
.workset-item:hover .workset-del-btn,
.workset-script-item:hover .workset-del-btn { opacity: 1; transform: scale(1.08); }
.workset-del-btn:hover { background: #D63031; transform: scale(1.15); box-shadow: 0 3px 10px rgba(214,48,49,0.5); }
/* 移动端常显 + 加深一点 */
@media (hover: none) { .workset-del-btn { opacity: 0.95; } }
.workset-item, .workset-script-item { position: relative; }

/* 发布作品抽屉 · 本地上传 */
.upload-local-btn {
    border: 1.5px dashed var(--primary-light); background: rgba(63,182,255,0.08); color: var(--primary);
    padding: 11px; border-radius: 10px; font-size: 13px; font-weight: 600; cursor: pointer;
    transition: all .15s; width: 100%; box-sizing: border-box;
}
.upload-local-btn:hover { background: #E0F2FE; border-color: var(--primary); }
.upload-file-info {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    background: rgba(0,184,148,0.12); border: 1px solid #B2F2C6; border-radius: 8px;
    padding: 8px 10px; font-size: 12.5px; color: #1B7A3E; word-break: break-all;
}
/* ============================================================
 * 第五轮改造：美化样式补丁
 * ============================================================ */

/* ----- 顶部 banner：仿普及课程的紫色横幅 ----- */
.tut-banner {
    margin: 0 12px 12px;
    background: linear-gradient(135deg,#0EA5E9,#7DD3FC);
    color: #fff; border-radius: 14px;
    padding: 16px 18px; max-width: 540px;
    box-shadow: 0 6px 18px rgba(14,165,233,.22);
}
.tut-banner-row { display: flex; align-items: center; gap: 12px; }
.tut-banner-icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: rgba(255,255,255,.18);
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; flex-shrink: 0;
}
.tut-banner-body { flex: 1; min-width: 0; }
.tut-banner-title { font-size: 17px; font-weight: 800; line-height: 1.3; }
.tut-banner-text { font-size: 12px; line-height: 1.6; opacity: .94; margin-top: 4px; }
.tut-banner-btn {
    background: var(--bg-card); color: var(--primary);
    border: none; border-radius: 999px;
    padding: 8px 14px; font-size: 12.5px; font-weight: 700;
    cursor: pointer; flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,.12);
}

/* ----- 大神讲解：双列网格（B 站风格） ----- */
.tutorials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 4px 12px 12px;
    margin: 0 auto 80px;
}
@media (min-width: 768px) {
    .tutorials-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 4px 16px 16px; }
}
@media (min-width: 1080px) {
    .tutorials-grid { grid-template-columns: repeat(4, 1fr); gap: 14px; padding: 4px 20px 20px; }
}
@media (min-width: 1320px) {
    .tutorials-grid { grid-template-columns: repeat(5, 1fr); gap: 14px; padding: 4px 24px 24px; }
}
.tut-grid-card {
    background: var(--bg-card); border-radius: 12px; overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
    cursor: pointer; position: relative;
    transition: transform .18s, box-shadow .18s;
    display: flex; flex-direction: column;
}
.tut-grid-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,.10); }
.tut-grid-cover {
    position: relative; width: 100%;
    padding-top: 56.25%; /* 16:9 */
    background-size: cover; background-position: center;
    overflow: hidden;
}
.tut-grid-emoji {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 50px;
    filter: drop-shadow(0 3px 8px rgba(0,0,0,.22));
}
.tut-grid-cat {
    position: absolute; top: 6px; left: 6px;
    background: rgba(0,0,0,.45); color: #fff;
    font-size: 10.5px; padding: 2px 8px;
    border-radius: 8px; font-weight: 600;
    backdrop-filter: blur(6px);
}
.tut-grid-mine {
    position: absolute; top: 6px; right: 6px;
    background: linear-gradient(90deg,#00B894,#00CEC9);
    color: #fff; font-size: 10px; padding: 2px 8px;
    border-radius: 8px; font-weight: 700;
}
.tut-grid-duration {
    position: absolute; right: 6px; bottom: 6px;
    background: rgba(0,0,0,.6); color: #fff;
    font-size: 11px; padding: 2px 6px; border-radius: 4px;
    font-family: ui-monospace, "SF Mono", monospace; font-weight: 500;
}
.tut-grid-body {
    padding: 8px 10px 10px;
    flex: 1; min-width: 0;
    display: flex; flex-direction: column;
}
.tut-grid-title {
    font-size: 13.5px; font-weight: 600; color: var(--text-dark);
    line-height: 1.4;
    overflow: hidden; display: -webkit-box;
    -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    min-height: 38px;
}
.tut-grid-summary {
    font-size: 11.5px; color: #95A0A6; line-height: 1.5;
    margin-top: 4px;
    overflow: hidden; display: -webkit-box;
    -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.tut-grid-foot {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: auto; padding-top: 6px;
    font-size: 11px; color: #95A0A6;
}
.tut-grid-author {
    display: inline-flex; align-items: center; gap: 4px;
    max-width: 60%; overflow: hidden;
    white-space: nowrap; text-overflow: ellipsis;
}
.tut-grid-author-avatar {
    display: inline-flex; width: 16px; height: 16px;
    border-radius: 50%;
    align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 9px;
    flex-shrink: 0;
}
.tut-grid-stat {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 10.5px;
}

/* ----- 教程列表空状态 ----- */
.tutorials-empty {
    grid-column: span 2;
    padding: 56px 20px; text-align: center; color: var(--text-light);
}
@media (min-width: 768px) { .tutorials-empty { grid-column: span 3; } }
@media (min-width: 1080px) { .tutorials-empty { grid-column: span 4; } }
.tutorials-empty-icon { font-size: 52px; margin-bottom: 10px; }
.tutorials-empty-text { font-size: 13px; line-height: 1.7; }

/* ----- 大神讲解 tab 工具栏（分类 + 排序） ----- */
.tut-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 12px 10px; max-width: 540px;
    margin: 0 auto;
}
@media (min-width: 768px) { .tut-toolbar { padding: 0 16px 12px; } }
@media (min-width: 1080px) { .tut-toolbar { padding: 0 20px 14px; } }
.tut-toolbar-info {
    font-size: 12px; font-weight: 600; color: #1E3A5F;
    background: rgba(255,255,255,0.88); border: 1px solid rgba(30,58,95,0.15);
    padding: 5px 12px; border-radius: 14px;
    box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}

/* ===== 站内搜索栏（首页 + 大神教程页，第 60 轮） ===== */
.home-search-bar {
    position: relative;
    margin: 10px 12px 4px;
    max-width: 540px;
}
@media (min-width: 768px) { .home-search-bar { margin: 12px auto 6px; } }
.home-search-bar input {
    width: 100%;
    padding: 10px 40px 10px 16px;
    border-radius: 22px;
    border: 1.5px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-dark);
    font-size: 14px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    box-sizing: border-box;
}
.home-search-bar input::placeholder { color: var(--text-light); }
.home-search-bar input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14,165,233,.15);
}
.home-search-clear {
    position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
    width: 26px; height: 26px; border-radius: 50%;
    border: none; background: var(--bg-hover); color: var(--text-medium);
    font-size: 12px; cursor: pointer; display: none;
    align-items: center; justify-content: center;
}
.home-search-clear:hover { background: #e84393; color: #fff; }
.search-result-tip {
    grid-column: 1 / -1;
    font-size: 13px; color: var(--text-medium);
    padding: 6px 4px 10px;
}
.search-result-tip b { color: var(--primary); }
.tut-search-input {
    width: 150px;
    padding: 5px 12px;
    border-radius: 14px;
    border: 1.5px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-dark);
    font-size: 12px;
    outline: none;
    transition: border-color .2s, width .25s;
}
.tut-search-input:focus { border-color: var(--primary); width: 200px; box-shadow: 0 0 0 3px rgba(14,165,233,.12); }
.tut-search-input::placeholder { color: var(--text-light); }

/* ===== 钱包流水筛选（全部/收入/支出） ===== */
.tx-filter { display: flex; gap: 6px; }
.tx-filter-item {
    font-size: 12px; padding: 4px 12px; border-radius: 12px;
    background: var(--bg-hover); color: var(--text-medium);
    cursor: pointer; transition: all .15s; user-select: none;
}
.tx-filter-item.active { background: var(--primary); color: #fff; font-weight: 600; }

/* ----- 个人中心教程历史（紧凑双列网格，跟大神讲解页一致） ----- */
.tut-history-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 6px 0 4px;
}
@media (min-width: 768px) {
    .tut-history-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
}
@media (min-width: 1080px) {
    .tut-history-grid { grid-template-columns: repeat(4, 1fr); gap: 14px; }
}

/* ----- 大神讲解页面 tab 圆角化（更靠近普及课程） ----- */
#tut-tabs.home-tabs {
    padding: 0 12px;
    max-width: 540px;
    margin: 0 auto 8px;
}
@media (min-width: 768px) { #tut-tabs.home-tabs { padding: 0 16px; } }
@media (min-width: 1080px) { #tut-tabs.home-tabs { padding: 0 20px; } }

/* ===== 全屏播放器 · 真实视频/图片播放（第 18 轮） ===== */
.player-stage-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
    z-index: 2;
}

/* 公网部署（2026-10-20）：自定义播放器 UI 完整样式 */
.player-stage-video-wrap { position: absolute; inset: 0; overflow: hidden; background: #000; }
/* Loading 圈（视频缓冲中显示） */
.player-stage-loading {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    z-index: 6;
    pointer-events: none;
}
.player-stage-loading[hidden] { display: none; }
.player-loading-spinner {
    width: 48px; height: 48px;
    border: 4px solid rgba(255,255,255,0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: player-spin 0.8s linear infinite;
}
@keyframes player-spin { to { transform: rotate(360deg); } }
/* 自定义控件条 */
.player-stage-controls {
    position: absolute;
    left: 0; right: 76px; /* 让出右侧侧栏 */
    bottom: 0;
    z-index: 5;
    padding: 8px 16px 14px;
    color: #fff;
    background: linear-gradient(transparent, rgba(0,0,0,0.78) 30%, rgba(0,0,0,0.85) 100%);
    /* mobile 默认显示（hover 不靠谱）；PC 也常显，便于发现 */
}
/* 进度条 */
.player-progress-wrap {
    height: 18px; /* 触摸友好：含内边距点击区域 */
    display: flex; align-items: center;
    cursor: pointer;
    position: relative;
    margin-bottom: 6px;
}
.player-progress-wrap::before {
    content: '';
    position: absolute; left: 0; right: 0; top: 50%; height: 4px;
    background: rgba(255,255,255,0.25);
    border-radius: 2px;
    transform: translateY(-50%);
}
.player-progress-buffered {
    position: absolute; left: 0; top: 50%;
    height: 4px;
    background: rgba(255,255,255,0.5);
    border-radius: 2px;
    transform: translateY(-50%);
    width: 0;
    pointer-events: none;
}
.player-progress-fill {
    position: absolute; left: 0; top: 50%;
    height: 4px;
    background: linear-gradient(90deg, #FF0050, #FF4D8B);
    border-radius: 2px;
    transform: translateY(-50%);
    width: 0;
    pointer-events: none;
}
.player-progress-handle {
    position: absolute;
    top: 50%;
    width: 14px; height: 14px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 4px rgba(0,0,0,0.4);
    transform: translate(-50%, -50%);
    left: 0;
    pointer-events: none;
    transition: transform 0.1s;
}
.player-progress-wrap:active .player-progress-handle {
    transform: translate(-50%, -50%) scale(1.25);
}
/* 按钮行 */
.player-controls-row {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
}
.player-btn {
    background: rgba(255,255,255,0.12);
    border: none;
    color: #fff;
    font-size: 16px;
    line-height: 1;
    padding: 8px 10px;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.15s;
    -webkit-tap-highlight-color: transparent;
}
.player-btn:active { background: rgba(255,255,255,0.28); }
.player-play-btn { font-size: 18px; padding: 8px 12px; }
.player-time {
    font-size: 13px;
    color: rgba(255,255,255,0.9);
    margin-left: 8px;
    font-variant-numeric: tabular-nums;
    min-width: 88px;
    display: inline-block;
}
.player-spacer { flex: 1; }
.player-speed-btn {
    font-size: 13px;
    padding: 6px 12px;
    border: 1px solid rgba(255,255,255,0.35);
    border-radius: 14px;
    background: transparent;
    font-weight: 600;
    min-width: 44px;
}
.player-fs-btn { font-size: 18px; padding: 8px 12px; }
/* 横屏 / 全屏时，控件铺满全宽 */
.player-overlay:fullscreen .player-stage-controls,
.player-overlay:-webkit-full-screen .player-stage-controls {
    right: 0;
    bottom: 24px;
    padding: 12px 32px 18px;
}
/* 公网部署（2026-10-20）：让 video native controls 始终可见（避免 hover 才显的小屏问题） */
.player-stage-video::-webkit-media-controls { display: flex !important; opacity: 1 !important; }
.player-stage-video::-webkit-media-controls-panel { display: flex !important; opacity: 1 !important; }
/* 公网部署（2026-10-20）：暂停时中央显示大 ▶ 提示"点这里播放" */
.player-stage-pause-icon {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
    width: 88px; height: 88px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 44px;
    line-height: 1;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: none;
    padding-left: 6px; /* 视觉居中 ▶ 三角 */
    transition: transform 0.18s, background 0.18s;
}
.player-stage-pause-icon:active { transform: translate(-50%, -50%) scale(0.92); }
.player-stage-pause-icon[hidden] { display: none; }
/* 播放中时（不暂停），让中央图标隐藏；native controls 处理播放/暂停，不冲突 */
.player-stage-video-wrap { position: absolute; inset: 0; }
.player-stage-image {
    object-fit: contain;
    background: #000;
}
/* 视频教程卡片上的播放角标 */
.tut-grid-play {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0,0,0,0.55);
    color: #fff;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    pointer-events: none;
}

/* ===== 图片作品横向滑动（参考抖音） ===== */
.player-stage-slider {
    position: absolute; inset: 0;
    display: flex; flex-wrap: nowrap;
    overflow-x: auto; overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    z-index: 2;
    background: #000;
}
.player-stage-slider::-webkit-scrollbar { display: none; }
.player-stage-slide {
    flex: 0 0 100%; width: 100%; height: 100%;
    position: relative; /* 关键：让内部 absolute（.player-stage-video inset:0）的 img 以本 slide 为定位基准，否则所有图叠在滑块原点、滑走后黑屏 */
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: flex; align-items: center; justify-content: center;
}
.player-stage-slide img {
    position: static; /* 关键：覆盖 .player-stage-video 的 absolute（inset:0 会钉在顶部），交回给 slide 的 flex 垂直居中——横版图片才能居中显示 */
    max-width: 100%; max-height: 100%;
    width: auto; height: auto;
    object-fit: contain;
    background: #000;
}
.player-stage-dots {
    position: absolute;
    bottom: 14px; left: 0; right: 200px;
    display: flex; gap: 6px; justify-content: center;
    z-index: 6; pointer-events: none;
}
.player-stage-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: rgba(255,255,255,0.4);
    transition: all 0.2s;
}
.player-stage-dot.active {
    width: 18px; border-radius: 3px;
    background: var(--bg-card);
}

/* 图片集左右切换按钮（电脑端显示，触屏用滑动即可隐藏） */
.player-stage-nav {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    width: 48px; height: 48px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
    font-size: 32px; line-height: 1;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    z-index: 7;
    transition: background 0.2s, opacity 0.2s;
    backdrop-filter: blur(6px);
    user-select: none;
}
.player-stage-nav:hover { background: rgba(0, 0, 0, 0.7); }
.player-stage-nav--prev { left: 16px; }
.player-stage-nav--next { right: 16px; } /* 右侧 sidebar 紧贴 stage 右边缘，按钮贴近 stage 右边 */
/* 触屏（hover 无效的设备）隐藏按钮，保留滑动 */
@media (hover: none) {
    .player-stage-nav { display: none; }
}

/* ===== 第 27 轮：顶栏刷新按钮 + 手机端下拉刷新 ===== */
/* 刷新按钮：仅桌面端显示（手机端用首页下拉手势），hover 时旋转提示 */
.topbar-refresh-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    color: var(--text-dark);
    transition: transform 0.35s ease, border-color 0.2s, color 0.2s, box-shadow 0.2s;
    flex-shrink: 0;
}
.topbar-refresh-btn:hover {
    border-color: #0EA5E9;
    color: #0EA5E9;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
    transform: rotate(360deg);
}
.topbar-refresh-btn:active { transform: scale(0.92); }

/* 下拉刷新指示器（手机端，悬浮于 topbar 下方、page-container 上方） */
.pull-refresh-indicator {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    z-index: 900;
    pointer-events: none;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    color: #0EA5E9;
    background: linear-gradient(180deg, rgba(250,251,252,0.98), rgba(250,251,252,0.92));
}
.pull-refresh-indicator.pull-refresh-nonstop { transition: none; }
.pull-refresh-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    font-size: 14px;
    font-weight: 700;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.12);
    transition: transform 0.2s ease;
}
.pull-refresh-indicator.pull-refresh-ready .pull-refresh-icon { transform: rotate(180deg); background: rgba(14,165,233,0.22); }
.pull-refresh-indicator.pull-refresh-refreshing .pull-refresh-icon {
    background: transparent;
    border: 2px solid rgba(14,165,233,0.25);
    border-top-color: #0EA5E9;
    animation: pullRefreshSpin 0.8s linear infinite;
}
.pull-refresh-text { font-size: 13px; font-weight: 600; }
@keyframes pullRefreshSpin { to { transform: rotate(360deg); } }

/* 手机端：隐藏桌面刷新按钮（改用首页下拉刷新）+ 下拉容器可定位 */
@media (max-width: 768px) {
    .topbar-refresh-btn { display: none; }
    /* 第 55 轮 · 抖音式播放器微调 */
    .player-sidebar {
        padding: 64px 4px 96px;  /* top 让出顶栏 + bottom 让出进度条；按钮紧凑 */
        gap: 18px;
        max-width: 64px;
    }
    .player-author-avatar { width: 46px; height: 46px; font-size: 16px; }
    .player-action-icon { width: 42px; height: 42px; font-size: 26px; }
    .player-msg-btn { font-size: 10px; padding: 5px 10px; }
    .player-stage-meta--top { right: 64px; padding: 56px 14px 18px; }
    .player-stage-meta { right: 64px; padding: 0 14px; }
    .player-stage-progress { right: 64px; }
}
.page-container { overscroll-behavior-y: contain; -webkit-overflow-scrolling: touch; }

/* ===== 投标确认页（订单详情 wide modal） ===== */
.od-head { margin-bottom: 14px; }
.od-title { font-size: 17px; font-weight: 700; color: #1a1a2e; margin-bottom: 8px; line-height: 1.4; }
.od-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.od-pill { padding: 3px 10px; background: rgba(14,165,233,0.12); color: var(--accent); border-radius: 999px; font-size: 11px; font-weight: 600; }
.od-pill--rose { background: rgba(232,67,147,0.12); color: #e84393; }
.od-meta-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 14px; background: linear-gradient(135deg,#fff5f5,#ffe8e8); border-radius: 12px; margin-bottom: 14px; }
.od-meta-cell { display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: 13px; }
.od-meta-cell strong { color: #1a1a2e; font-size: 15px; font-weight: 800; }
.od-meta-cell--accent strong { color: #ff4757; font-size: 18px; font-weight: 800; }
.od-meta-label { font-size: 11px; color: var(--text-light); }
.od-short-desc { font-size: 13px; color: #555; line-height: 1.6; margin-bottom: 16px; padding: 10px 12px; background: #f8f9fa; border-radius: 8px; border-left: 3px solid var(--accent); }

.od-publisher-card { padding: 14px; background: linear-gradient(135deg,#f0f9ff,#e0f2fe); border-radius: 12px; margin-bottom: 16px; border: 1px solid #bae6fd; }
.od-publisher-card--loading { padding: 18px; text-align: center; color: var(--text-light); }
.od-publisher-error { padding: 10px; text-align: center; color: #d63031; font-size: 13px; }
.od-publisher-self { padding: 12px; margin-bottom: 16px; background: #fef3c7; border-radius: 10px; color: #854d0e; font-size: 13px; text-align: center; }
.od-publisher-row { display: flex; align-items: flex-start; gap: 12px; }
.od-publisher-av { width: 52px; height: 52px; border-radius: 50%; overflow: hidden; flex-shrink: 0; background: var(--bg-card); display: flex; align-items: center; justify-content: center; box-shadow: 0 2px 6px rgba(0,0,0,.08); }
.od-publisher-av img { width: 100%; height: 100%; object-fit: cover; }
.od-publisher-av-text { width: 100%; height: 100%; color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 22px; }
.od-publisher-info { flex: 1; min-width: 0; }
.od-publisher-name-row { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-bottom: 4px; }
.od-publisher-name { font-weight: 700; font-size: 15px; color: #1a1a2e; }
.od-publisher-id { font-size: 11px; color: var(--text-light); background: var(--bg-card); padding: 2px 6px; border-radius: 4px; }
.od-publisher-badge { font-size: 11px; color: #16a34a; background: #dcfce7; padding: 2px 6px; border-radius: 4px; font-weight: 600; }
.od-publisher-intro { font-size: 12px; color: #64748b; line-height: 1.5; margin: 4px 0 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.od-publisher-meta { display: flex; gap: 10px; flex-wrap: wrap; font-size: 11px; color: #64748b; }
.od-publisher-actions { display: flex; flex-direction: column; gap: 6px; flex-shrink: 0; }
.od-btn-chat { white-space: nowrap; }

.od-section { margin-bottom: 18px; padding: 14px; background: var(--bg-card); border-radius: 12px; border: 1px solid var(--border-color); }
.od-section-title-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; flex-wrap: wrap; gap: 8px; }
.od-section-title { font-weight: 700; font-size: 14px; color: #1a1a2e; }
.od-section-body { font-size: 13px; color: #555; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.od-content-box { background: #fafbfc; padding: 12px; border-radius: 8px; border-left: 3px solid var(--accent); }
.od-requirements { margin: 0; padding-left: 20px; font-size: 13px; color: #555; line-height: 1.8; }
.od-requirements li { margin-bottom: 4px; }

.od-att-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.od-att-row { display: flex; align-items: center; gap: 12px; padding: 10px; background: #fafbfc; border-radius: 10px; border: 1px solid var(--border-color); transition: border-color .15s, transform .15s; }
.od-att-row:hover { border-color: #cbd5e1; transform: translateY(-1px); }
.od-att-thumb { width: 52px; height: 52px; flex-shrink: 0; border-radius: 8px; overflow: hidden; background: var(--bg-card); display: flex; align-items: center; justify-content: center; box-shadow: inset 0 0 0 1px var(--border-color); }
.od-att-thumb img { width: 100%; height: 100%; object-fit: cover; }
.od-att-icon-cell { font-size: 28px; color: var(--accent); }
.od-att-info { flex: 1; min-width: 0; }
.od-att-name { font-size: 13px; font-weight: 600; color: #1a1a2e; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.od-att-sub { font-size: 11px; color: var(--text-light); margin-top: 4px; }
.od-att-actions { display: flex; gap: 6px; flex-shrink: 0; }
.od-btn { padding: 6px 10px; border-radius: 8px; font-size: 12px; font-weight: 600; border: 1px solid transparent; background: transparent; cursor: pointer; transition: all .15s; white-space: nowrap; }
.od-btn:hover { transform: translateY(-1px); }
.od-btn--ghost { background: #f1f5f9; color: var(--text-dark); border-color: #cbd5e1; }
.od-btn--ghost:hover { background: #e2e8f0; }
.od-btn--primary { background: linear-gradient(135deg,#0EA5E9,#0284c7); color: #fff; border-color: transparent; }
.od-btn--primary:hover { box-shadow: 0 4px 10px rgba(14,165,233,.35); }
.od-btn--ghost-sm { padding: 4px 10px; background: var(--bg-card); color: var(--accent); border-color: #bae6fd; font-size: 12px; border-radius: 999px; }
.od-btn--ghost-sm:hover { background: #f0f9ff; }
.od-att-tip { font-size: 11px; color: #d97706; padding: 8px 10px; background: #fef3c7; border-radius: 6px; margin-top: 4px; }

.od-cta-wrap { margin-top: 18px; padding-top: 14px; border-top: 1px dashed #e0e0e5; }
.od-cta-bid { font-size: 15px; padding: 14px; font-weight: 700; }

@media (max-width: 600px) {
    /* 元数据三件套：横向 3 列 → 纵向 1 列，左标右值 */
    .od-meta-grid { grid-template-columns: 1fr; gap: 4px; padding: 12px; }
    .od-meta-cell { flex-direction: row; justify-content: space-between; padding: 6px 4px; border-bottom: 1px dashed rgba(214,48,49,0.15); }
    .od-meta-cell:last-child { border-bottom: none; }
    .od-meta-label { font-size: 12px; }

    /* 对方用户卡片：横排 → 头在上、信息在中、按钮纵排在底 */
    .od-publisher-card { padding: 12px; }
    .od-publisher-row { flex-direction: column; align-items: center; gap: 12px; }
    .od-publisher-av { width: 64px; height: 64px; }
    .od-publisher-info { text-align: center; width: 100%; }
    .od-publisher-name-row { justify-content: center; }
    .od-publisher-intro { text-align: left; }
    .od-publisher-meta { justify-content: center; }
    .od-publisher-actions { width: 100%; flex-direction: column; }
    .od-publisher-actions .btn { width: 100%; }

    /* 附件行：thumb 在上、信息在中、按钮横向平均分布在下 */
    .od-att-row { flex-wrap: wrap; padding: 12px; gap: 10px; }
    .od-att-thumb { width: 100%; height: 160px; }
    .od-att-info { width: 100%; }
    .od-att-name { white-space: normal; word-break: break-all; font-size: 14px; }
    .od-att-actions { width: 100%; flex-direction: row; }
    .od-att-actions .od-btn { flex: 1; text-align: center; padding: 10px 6px; font-size: 13px; }

    /* 标题区 + tags：保持横排但允许换行 */
    .od-title { font-size: 16px; }

    /* modal：占满宽度，留 16px 边距 */
    .modal { width: calc(100% - 24px) !important; }
    .modal-body { padding: 16px; }

    /* 图片预览大图：缩短高度避免超出 */
    .modal-body img { max-height: 60vh !important; }
}


/* ============================================================
 * 【第 57 轮】暗夜脉冲主题 · Dark Pulse Theme
 * 深蓝黑底 #0A0E1A + 电光蓝 #3FB6FF + 品红点缀 #FF0050
 * 覆盖层追加在文件末尾，靠层叠优先级生效
 * ============================================================ */

/* ---- 1. 变量翻转为深色 ---- */
:root {
    --primary: #3FB6FF;
    --primary-dark: #2DA8FF;
    --primary-light: #7CC8FF;
    --primary-gradient: linear-gradient(135deg, #2DA8FF, #3FB6FF);
    --accent: #25F4EE;

    --bg-main: #0A0E1A;
    --bg-sidebar: #0E1526;
    --bg-card: #10182B;
    --bg-hover: #1A2440;

    --text-dark: #E8F2FF;
    --text-medium: #8FA3C8;
    --text-light: #5B6B8C;

    --border-color: #1C2A45;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.35);
    --shadow-md: 0 6px 24px rgba(0,0,0,0.45);
    --shadow-lg: 0 12px 44px rgba(0,0,0,0.55);

    /* 等级徽章：浅粉彩底 → 深色半透明底 */
    --level-basic-bg: rgba(0,184,148,0.15);
    --level-medium-bg: rgba(253,164,52,0.16);
    --level-advanced-bg: rgba(231,76,60,0.16);
    --level-starter-bg: rgba(63,182,255,0.16);
    --level-workbuddy-bg: rgba(9,132,227,0.20);
    --level-trae-bg: rgba(0,206,201,0.15);
    --level-chatgpt-bg: rgba(16,163,127,0.16);
    --level-codex-bg: rgba(74,86,106,0.45);
    --level-xiaoyunque-bg: rgba(255,118,117,0.16);
    --level-xingliu-bg: rgba(253,203,110,0.16);
}
body { color-scheme: dark; }

/* ---- 2. 顶栏 · 深色毛玻璃 ---- */
.topbar {
    background: rgba(13,19,35,0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.topbar-refresh-btn {
    background: #0B1322 !important;
    border-color: var(--border-color) !important;
    color: var(--text-medium) !important;
}
.topbar-refresh-btn:hover { border-color: var(--primary) !important; color: var(--primary) !important; }
.topbar-refresh-btn svg { display: block; }

/* ---- 3. 底部导航 · 悬浮胶囊 dock ---- */
.bottombar {
    left: 12px; right: 12px;
    bottom: calc(10px + env(safe-area-inset-bottom, 0px));
    height: 62px;
    background: rgba(16,24,43,0.80); /* 半透明毛玻璃：首页背景图能透出来，不再是一片黑 */
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border: 1px solid #1C2A45;
    border-radius: 22px;
    box-shadow: 0 10px 32px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.05);
    padding: 0 8px;
    padding-bottom: 0;
}
.bottombar-item { color: var(--text-light); }
.bottombar-item:hover { color: #3FB6FF; }
.bottombar-item.active { color: #3FB6FF; }
.bottombar-item.active::before { display: none; }
.bottombar-icon { display: flex; align-items: center; justify-content: center; }
.bottombar-icon svg { display: block; }

/* 中央发布按钮：电光蓝圆角方块上浮 */
.bottombar-fab-wrap {
    background: linear-gradient(135deg, #2DA8FF, #1B6FD8);
    border-radius: 16px;
    border: none;
    width: 48px; height: 48px;
    margin: -20px 0 -20px 0;
    box-shadow: 0 6px 20px rgba(45,168,255,0.45);
}
.bottombar-fab-icon { font-size: 24px; margin-top: 0; }
.bottombar-fab-wrap:active { transform: scale(0.94); }

/* ---- 4. 首页 tab · 胶囊选中态 ---- */
.home-tabs {
    background: rgba(10,14,26,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}
.home-tab { border-radius: 14px; color: var(--text-light); }
.home-tab.active {
    color: #3FB6FF;
    background: #1C2A45;
}
.home-tab.active::after { display: none; }
.home-tab.active { margin: 6px 0 4px; padding: 8px 14px; }

/* ---- 5. 卡片 · 深色描边发光 ---- */
.feed-card, .card, .module-card, .author-card {
    border: 1px solid var(--border-color);
}
.feed-card:hover {
    box-shadow: 0 6px 22px rgba(45,168,255,0.18);
    border-color: #2A4470;
}

/* ---- 6. 滚动条 ---- */
.page-container::-webkit-scrollbar-thumb { background: #2A3A5C; }

/* ---- 7. 登录/注册页（内联样式兜底） ---- */
#auth-screen input {
    color: #E8F2FF;
    background: #0B1322;
}
#auth-screen input::placeholder { color: #5B6B8C; }
#auth-error {
    background: rgba(255,107,107,0.12) !important;
    color: #FF8A8A !important;
    border-color: rgba(255,107,107,0.35) !important;
}

/* ---- 8. 修复 sed 误伤：白按钮 hover 恢复纯白 ---- */
.btn-white:hover { background: #fff; }

/* ---- 9. 教程语义色块（深色底版本） ---- */
.tut-quote { color: #FDCB6E; }
.tut-inline-code { color: #FF9B8A; }

/* ---- 10. 输入框/textarea 深色兜底 ---- */
input, textarea, select {
    color: #E8F2FF;
}
input::placeholder, textarea::placeholder { color: #5B6B8C; }

/* ---- 11. 课程图片放大层（点击查看大图 / 双指捏合缩放） ---- */
#image-lightbox {
    animation: lightboxFadeIn 0.18s ease-out;
}
#image-lightbox.lightbox-out {
    animation: lightboxFadeOut 0.18s ease-in forwards;
}
#image-lightbox-img {
    transition: transform 0.18s ease-out;
}
@keyframes lightboxFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes lightboxFadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
    #image-lightbox { animation: none; }
    .lesson-fs-content img { transition: none; }
}

/* ===== 全局兜底：内联硬编码深色字在深色主题下提亮 ===== */
/* 通用学习页/课程页/订单页的内联 color:#xxxx 深色硬编码 → 全部提亮 */
.card [style*="color:#1a1a2e"],
.card [style*="color:#1F2937"],
.card [style*="color:#2D3436"],
.card [style*="color:#333"],
.card [style*="color:#444"],
.card [style*="color:#555"],
.card [style*="color:#666"],
.card [style*="color:#888"],
.card [style*="color:#000"],
.card [style*="color:#000000"],
.focus-card-title-vert,
.page-container [style*="color:#1a1a2e"]:not(.lesson-fs-content *),
.page-container [style*="color:#1F2937"]:not(.lesson-fs-content *),
.page-container [style*="color:#2D3436"]:not(.lesson-fs-content *) {
    color: var(--text-dark) !important;
}
/* 学习中心焦点卡片内的链接/描述：链接颜色提亮，深色背景上可见 */
.course-focused a[style*="color:var(--primary)"],
.course-focused a { color: #5DD2FF !important; }
.course-focused .focus-card-software,
.course-focused [style*="color:var(--text-medium)"] {
    color: #B0C4DE !important;
}

/* ===== 作品集多选批量删除 ===== */
.workset-multi-btn {
    margin-left: auto;
    background: rgba(63,182,255,0.12);
    border: 1px solid rgba(63,182,255,0.4);
    border-radius: 16px;
    color: #7DD3FC; font-size: 12px; font-weight: 600;
    padding: 5px 12px; cursor: pointer;
    white-space: nowrap;
}
.workset-multi-btn:hover { background: rgba(63,182,255,0.25); }
.workset-multi-btn.active { background: linear-gradient(135deg, #2DA8FF, #7C3AED); color: #fff; border-color: transparent; }
.workset-batch-bar {
    display: flex; align-items: center; gap: 10px;
    background: #10182B;
    border: 1px solid rgba(63,182,255,0.35);
    border-radius: 12px;
    padding: 10px 14px; margin: 8px 0 12px;
    flex-wrap: wrap;
}
.wb-count { color: #E8F2FF; font-size: 13px; font-weight: 700; margin-right: auto; }
.wb-btn {
    background: rgba(63,182,255,0.12);
    border: 1px solid rgba(63,182,255,0.4);
    border-radius: 14px;
    color: #7DD3FC; font-size: 12px; font-weight: 600;
    padding: 5px 12px; cursor: pointer;
}
.wb-btn:hover { background: rgba(63,182,255,0.25); }
.wb-btn.wb-danger { background: rgba(255,71,87,0.12); border-color: rgba(255,71,87,0.5); color: #FF9AA5; }
.wb-btn.wb-danger:hover { background: rgba(255,71,87,0.3); }
.workset-pick {
    position: absolute; top: 8px; left: 8px; z-index: 5;
    width: 22px; height: 22px; border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.85);
    background: rgba(0,0,0,0.35);
    color: transparent; font-size: 13px; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all .15s;
    line-height: 1;
}
.workset-pick.picked {
    background: #2DA8FF; border-color: #2DA8FF; color: #fff;
}
.workset-item.picked-card, .workset-script-item.picked-card {
    outline: 2px solid #2DA8FF; outline-offset: -2px;
    border-radius: 10px;
}

/* ============================================================
 * 手机端：课程 / 交易页紧凑排版（缩小按钮面积与留白）
 * 仅 ≤768px 生效，桌面端排版不受影响
 * ============================================================ */
@media (max-width: 768px) {
    /* ---- 课程页顶部双入口：手机端保持双列（不再上下堆叠占两屏） ---- */
    .course-entries { grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
    .course-entry { padding: 10px 12px; gap: 10px; }
    .course-entry-icon { width: 38px; height: 38px; font-size: 20px; border-radius: 10px; }
    .course-entry-name { font-size: 13px; }
    .course-entry-desc { font-size: 10px; }

    /* ---- 欢迎横幅收紧 ---- */
    .welcome-banner { padding: 18px 16px; margin-bottom: 14px; border-radius: 14px; }
    .welcome-banner::after { font-size: 64px; right: 6px; }
    .welcome-title { font-size: 19px; margin-bottom: 6px; }
    .welcome-text { font-size: 12px; line-height: 1.55; }

    /* ---- 课程卡片收紧 ---- */
    .course-cover { height: 120px; font-size: 44px; }
    .course-cover .cover-badge { top: 8px; right: 8px; padding: 3px 8px; font-size: 10px; }
    .course-body { padding: 14px; }
    .course-title { font-size: 15px; margin-bottom: 6px; }
    .course-desc { margin-bottom: 10px; }
    .course-body > div:last-child { margin-top: 8px !important; }
    /* 课程卡操作按钮：由默认 .btn 的 10px/24px 缩为紧凑尺寸 */
    .course-body .btn { padding: 6px 14px; font-size: 12px; }
    .course-body .btn.btn-outline { border-width: 1.5px; }

    /* ---- 交易页 ---- */
    .trade-tabs { padding: 4px; margin-bottom: 12px; }
    .trade-tab { padding: 8px 10px; font-size: 13px; }
    .lock-overlay { padding: 26px 16px; }
    .lock-overlay .btn { padding: 8px 16px; font-size: 13px; }
    .publish-form { padding: 16px; }
    .publish-form .form-submit { padding: 11px; font-size: 14px; }
    .trade-order-card { padding: 12px; }
    .trade-order-actions { margin-top: 8px; padding-top: 8px; }
    .trade-order-actions .btn { padding: 4px 12px; font-size: 11px; }
}

/* ===== 粉丝/关注用户列表弹窗（2026-10-02） ===== */
.fu-row {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 6px; border-bottom: 1px solid var(--border-color);
    cursor: pointer; border-radius: 10px; transition: background .15s;
}
.fu-row:last-child { border-bottom: none; }
.fu-row:hover { background: rgba(14,165,233,.07); }
.fu-avatar {
    width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 800; color: #fff;
}
.fu-avatar--img { object-fit: cover; }
.fu-name {
    flex: 1; min-width: 0;
    font-size: 14px; font-weight: 600; color: var(--text-dark);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.fu-go { font-size: 12px; color: var(--text-light); white-space: nowrap; }
.fu-empty { text-align: center; padding: 36px 12px; color: var(--text-light); font-size: 13px; }

/* ===== 手机端隐藏顶栏（2026-10-02）：返回走系统返回键，下拉刷新/Toast 位置同步上移 ===== */
@media (max-width: 768px) {
    .topbar { display: none !important; }
    .pull-refresh-indicator { top: 0; }
    .toast-container { top: 12px; }
}

/* ===== 首页 tab 简约线性图标（2026-10-04） ===== */
.home-tab .htab-ico { width: 14px; height: 14px; vertical-align: -2px; margin-right: 3px; }

/* ===== 手机端播放器：点按闪现的小播放/暂停指示（2026-10-08） ===== */
.lc-play-flash {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 56px; height: 56px; border-radius: 50%;
    background: rgba(0,0,0,0.35); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; z-index: 9; pointer-events: none;
    animation: lcFlashFade 0.45s ease-out forwards;
}
@keyframes lcFlashFade {
    from { opacity: 0.9; transform: translate(-50%, -50%) scale(1); }
    to { opacity: 0; transform: translate(-50%, -50%) scale(1.3); }
}

/* ===== 登录注册页与全屏播放器不显示 zora 浮窗（2026-10-08 用户要求） ===== */
body.player-open #zora-fab,
body.auth-open #zora-fab,
body.player-open #zora-chat,
body.auth-open #zora-chat { display: none !important; }

/* ===== 交易大厅分类筛选条与下方订单卡间距（2026-10-09 用户反馈太挤） ===== */
#trade-category-tabs { padding: 12px 16px 4px; margin-bottom: 16px; }
#trade-category-tabs .feed-subtab { padding: 7px 16px; }

/* ===== 作者主页作品分组 tab 简约图标（2026-10-09，与首页统一） ===== */
.workset-tab .htab-ico { width: 13px; height: 13px; vertical-align: -2px; margin-right: 3px; }

/* ============================================================
 * 抖音式刷视频页（vertical swipe，2026-10-20）
 * - 黑底全屏，垂直 scroll snap，每屏一个视频
 * - 右侧操作栏（点赞❤️ 评论💬 分享↗ 收藏⭐ ＋ 作者头像）
 * - 底部信息：作者 + 标题 + 话题标签
 * - 顶部：左上返回 ✕
 * - 底部：细线进度条 ＋ 桌面端 hover 控件
 * ============================================================ */

.shorts-overlay {
    position: fixed; inset: 0; z-index: 9999;
    background: #000;
    display: flex; align-items: stretch; justify-content: stretch;
    flex-direction: column;
    overscroll-behavior: contain;
    /* 启用 vertical scroll snap（每屏 1 卡） */
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    touch-action: pan-y;
}
.shorts-overlay::-webkit-scrollbar { display: none; width: 0; height: 0; }

.shorts-stage {
    position: relative; width: 100%; height: 100%;
}

/* 单个短视频卡片 —— 用 CSS 变量驱动高度（绕过 100vh/100dvh 在 iOS Safari 上的偏差）
 * 高度 = var(--shorts-vh)，由 JS _shortsFixHeights() = window.innerHeight 同步控制
 * 内联 style.height 优先兜底（CSS 解析失败时）
 */
.shorts-card {
    scroll-snap-align: start;
    scroll-snap-stop: always;
    position: relative;
    width: 100%;
    height: var(--shorts-vh, 100vh); /* iOS 16.4+ 安全，否则 fallback 100vh */
    background: #000;
    overflow: hidden;
}

/* video 元素 —— 终极稳健方案：
 * position:absolute + inset:0 让 video box 永远 = card content box（不会跳）
 * object-fit:contain 让画面在 box 内 contain 缩放，永远完整可见（横屏视频也不会被裁切）
 */
.shorts-card video.shorts-video {
    display: block;
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    margin: auto;
    width: 100%;
    height: 100%;
    max-width: 100vw;
    max-height: var(--shorts-vh, 100vh);
    aspect-ratio: 9 / 16; /* fallback；metadata 加载后浏览器自动覆盖 */
    object-fit: contain;
    object-position: center center;
    background: #000;
    cursor: pointer;
    /* 防止 inline-block 默认 baseline 偏移 */
    vertical-align: top;
}

/* poster 缩略图（图片盖层，video 加载完即隐藏） */
.shorts-card .shorts-poster {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    background: #000;
    z-index: 1;
    transition: opacity 0.35s ease-out;
}
.shorts-card.is-playing .shorts-poster { opacity: 0; pointer-events: none; }

/* loading 圆圈 */
.shorts-card .shorts-card-loading {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 44px; height: 44px;
    border: 3px solid rgba(255,255,255,0.18);
    border-top-color: #fff;
    border-radius: 50%;
    animation: shorts-spin 0.9s linear infinite;
    z-index: 4;
}
.shorts-card.is-playing .shorts-card-loading { opacity: 0; pointer-events: none; }
@keyframes shorts-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

/* 顶部栏：关闭按钮 */
.shorts-close-btn {
    position: absolute;
    top: max(16px, env(safe-area-inset-top, 0));
    left: 14px;
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(0,0,0,0.45);
    color: #fff;
    border: none;
    font-size: 18px;
    line-height: 36px;
    cursor: pointer;
    z-index: 10;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background 0.18s, transform 0.18s;
    font-weight: 300;
}
.shorts-close-btn:hover { background: rgba(0,0,0,0.7); transform: scale(1.05); }
.shorts-close-btn:active { transform: scale(0.92); }

/* 右侧操作栏 */
.shorts-sidebar {
    position: absolute;
    right: max(12px, calc(env(safe-area-inset-right, 0px) + 8px));
    bottom: 30%;
    display: flex; flex-direction: column;
    align-items: center;
    gap: 22px;
    z-index: 10;
    pointer-events: auto;
}
.shorts-sidebar .shorts-author {
    position: relative;
    width: 48px; height: 48px;
    border-radius: 50%;
    margin-bottom: 8px;
    cursor: pointer;
}
.shorts-sidebar .shorts-author-avatar {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FF0050, #0EA5E9);
    color: #fff; font-weight: 700; font-size: 22px;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid #fff;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}
.shorts-sidebar .shorts-author-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.shorts-sidebar .shorts-author-follow {
    position: absolute;
    bottom: -8px; left: 50%;
    transform: translateX(-50%);
    width: 26px; height: 26px;
    border-radius: 50%;
    background: #FE2C55;
    color: #fff;
    font-size: 16px;
    line-height: 24px;
    text-align: center;
    border: 2px solid #000;
    cursor: pointer;
}

.shorts-action {
    display: flex; flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    color: #fff;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}
.shorts-action:active { transform: scale(0.92); transition: transform 0.1s; }
.shorts-action-icon {
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    filter: drop-shadow(0 1px 4px rgba(0,0,0,0.55));
    transition: transform 0.18s;
}
.shorts-action-icon.liked { color: #FE2C55; transform: scale(1.05); }
.shorts-action-icon:not(.liked) { color: #fff; }
.shorts-action-count {
    font-size: 12px;
    color: #fff;
    text-shadow: 0 1px 4px rgba(0,0,0,0.65);
    font-variant-numeric: tabular-nums;
}

/* 底部信息 */
.shorts-info {
    position: absolute;
    left: 14px;
    right: 80px;  /* 留给右侧操作栏 */
    bottom: max(20px, env(safe-area-inset-bottom, 0px));
    color: #fff;
    z-index: 9;
    text-shadow: 0 1px 6px rgba(0,0,0,0.7);
}
.shorts-info-author { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.shorts-info-nickname {
    font-size: 15px; font-weight: 600;
    color: #fff;
    text-shadow: 0 1px 4px rgba(0,0,0,0.55);
}
.shorts-info-follow-btn {
    margin-left: 4px;
    padding: 3px 12px;
    border: 1px solid #fff;
    border-radius: 4px;
    background: transparent;
    color: #fff;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s;
}
.shorts-info-follow-btn:hover { background: rgba(255,255,255,0.18); }
.shorts-info-follow-btn.following { background: rgba(255,255,255,0.18); }

.shorts-info-title {
    font-size: 15px; line-height: 1.4;
    color: #fff;
    margin-bottom: 6px;
    max-height: 38px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.shorts-info-desc {
    font-size: 13px; line-height: 1.4;
    color: rgba(255,255,255,0.85);
    margin-bottom: 6px;
    max-height: 38px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.shorts-info-tags {
    display: flex; gap: 8px; flex-wrap: wrap;
}
.shorts-info-tag {
    font-size: 12px;
    color: rgba(255,255,255,0.85);
    background: rgba(255,255,255,0.08);
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
    cursor: pointer;
}

/* 进度条（顶部极细，像抖音） */
.shorts-progress {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: rgba(255,255,255,0.18);
    z-index: 11;
    pointer-events: none;
}
.shorts-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #FE2C55, #FF6680);
    width: 0%;
    transition: width 0.18s linear;
}

/* 中央暂停图标（点 video 切换播放/暂停时显示一下） */
.shorts-card .shorts-play-icon {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.85);
    width: 64px; height: 64px;
    border-radius: 50%;
    background: rgba(0,0,0,0.55);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px;
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s;
    z-index: 5;
    pointer-events: none;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.shorts-card.is-paused .shorts-play-icon { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.shorts-card.is-playing .shorts-play-icon { opacity: 0; }

/* 双击 ❤️ 心形飞出动画 */
.shorts-card .shorts-floating-heart {
    position: absolute;
    font-size: 80px;
    color: #FE2C55;
    filter: drop-shadow(0 4px 12px rgba(254,44,85,0.6));
    pointer-events: none;
    z-index: 6;
    animation: shorts-heart-float 1.1s ease-out forwards;
    transform: translate(-50%, -50%) scale(0.4);
    opacity: 0;
}
@keyframes shorts-heart-float {
    0% { transform: translate(-50%, -50%) scale(0.4); opacity: 0; }
    20% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
    50% { transform: translate(-50%, -120%) scale(1); opacity: 0.95; }
    100% { transform: translate(-50%, -200%) scale(0.85); opacity: 0; }
}

/* 顶部 loading 蒙层（首次加载列表时） */
.shorts-loading {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 14px;
    z-index: 12;
    color: #fff;
}
/* 显式覆盖：HTML [hidden] 属性要把 display 强制隐藏 */
.shorts-overlay .shorts-loading[hidden],
.shorts-card .shorts-error[hidden],
.shorts-card .shorts-card-loading[hidden],
.shorts-card .shorts-play-icon[hidden] {
    display: none !important;
}
.shorts-loading-spinner {
    width: 44px; height: 44px;
    border: 3px solid rgba(255,255,255,0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: shorts-spin 0.9s linear infinite;
}
.shorts-loading-text { font-size: 13px; color: rgba(255,255,255,0.7); }

/* 错误兜底（视频加载失败） */
.shorts-card .shorts-error {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 12px;
    background: rgba(0,0,0,0.85);
    color: #fff;
    z-index: 7;
    text-align: center;
    padding: 30px;
}
.shorts-card .shorts-error-icon { font-size: 44px; opacity: 0.65; }
.shorts-card .shorts-error-text { font-size: 14px; }
.shorts-card .shorts-error-hint { font-size: 11px; opacity: 0.55; }

/* 当短片卡在播放状态时点击中央暂停 */
.shorts-card {
    /* 帮助触发 click */
    cursor: pointer;
}

/* 移动端：紧凑一点 */
@media (max-width: 540px) {
    .shorts-info { right: 72px; bottom: 18%; }
    .shorts-sidebar { right: 10px; bottom: 24%; gap: 18px; }
    .shorts-action-icon { width: 40px; height: 40px; font-size: 26px; }
    .shorts-info-title { font-size: 14px; }
    .shorts-info-desc { font-size: 12px; }
}

/* 桌面端：控制条悬停时显示（hover） */
@media (hover: hover) and (min-width: 768px) {
    .shorts-card .shorts-desk-controls {
        position: absolute;
        bottom: 70px; left: 50%;
        transform: translateX(-50%);
        display: flex;
        gap: 8px;
        padding: 6px 12px;
        background: rgba(0,0,0,0.55);
        border-radius: 24px;
        opacity: 0;
        transition: opacity 0.2s;
        z-index: 8;
    }
    .shorts-card:hover .shorts-desk-controls { opacity: 1; }
    .shorts-desk-controls button {
        width: 36px; height: 36px;
        background: transparent;
        border: none;
        color: #fff;
        font-size: 16px;
        cursor: pointer;
        border-radius: 50%;
        transition: background 0.15s;
    }
    .shorts-desk-controls button:hover { background: rgba(255,255,255,0.18); }
}

/* 防止 body 滚动穿透到 #shorts-overlay 之外的元素 */
body.shorts-open { overflow: hidden !important; }

/* ===== 手机版课时图文紧凑排版（豆包/即梦等全部课程生效，2026-10-20） ===== */
@media (max-width: 640px) {
    .lesson-fs-content { font-size: 14px !important; line-height: 1.75 !important; }
    .lesson-fs-content h3 { font-size: 18px !important; margin: 16px 0 8px !important; padding-bottom: 6px !important; border-bottom-width: 2px !important; }
    .lesson-fs-content h3:first-child { margin-top: 0 !important; }
    .lesson-fs-content h4 { font-size: 15px !important; margin: 12px 0 6px !important; }
    .lesson-fs-content p { margin: 6px 0 !important; }
    .lesson-fs-content ul, .lesson-fs-content ol { margin: 6px 0 !important; padding-left: 20px !important; }
    .lesson-fs-content li { margin: 3px 0 !important; line-height: 1.7 !important; }
    .lesson-fs-content div[style*="padding"] { padding: 9px 11px !important; margin: 7px 0 !important; }
    .lesson-fs-content table { font-size: 12px !important; line-height: 1.6 !important; margin: 8px 0 !important; }
    .lesson-fs-content th, .lesson-fs-content td { padding: 5px 6px !important; }
    .lesson-fs-content img { max-width: 100% !important; height: auto !important; }
    .lesson-fs-content .btn { padding: 7px 12px !important; font-size: 13px !important; }
}

/* ===== 手机版课时图文紧凑排版（豆包/即梦等全部课程生效，2026-10-20） ===== */
@media (max-width: 640px) {
    .lesson-fs-content { font-size: 14px !important; line-height: 1.75 !important; }
    .lesson-fs-content h3 { font-size: 18px !important; margin: 16px 0 8px !important; padding-bottom: 6px !important; border-bottom-width: 2px !important; }
    .lesson-fs-content h3:first-child { margin-top: 0 !important; }
    .lesson-fs-content h4 { font-size: 15px !important; margin: 12px 0 6px !important; }
    .lesson-fs-content p { margin: 6px 0 !important; }
    .lesson-fs-content ul, .lesson-fs-content ol { margin: 6px 0 !important; padding-left: 20px !important; }
    .lesson-fs-content li { margin: 3px 0 !important; line-height: 1.7 !important; }
    .lesson-fs-content div[style*="padding"] { padding: 9px 11px !important; margin: 7px 0 !important; }
    .lesson-fs-content table { font-size: 12px !important; line-height: 1.6 !important; margin: 8px 0 !important; }
    .lesson-fs-content th, .lesson-fs-content td { padding: 5px 6px !important; }
    .lesson-fs-content img { max-width: 100% !important; height: auto !important; }
    .lesson-fs-content .btn { padding: 7px 12px !important; font-size: 13px !important; }
}