@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,500&family=JetBrains+Mono:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700;900&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400&display=swap');

  :root {
    --bg-primary: #faf8f5;
    --bg-secondary: #f0ece6;
    --bg-tertiary: #e8e3db;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-muted: #999;
    --accent: #2563eb;
    --accent-soft: #3b82f6;
    --gold: #eab308;
    --border: rgba(255,255,255,0.06);
    --glass-bg: rgba(255,255,255,0.03);
    --glass-border: rgba(255,255,255,0.08);
    --float-bg: rgba(255,255,255,0.025);
    --float-border: rgba(255,255,255,0.06);
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: auto; background: var(--bg-primary); }
  body {
    font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  /* ── Custom Scrollbar ── */
  .custom-scrollbar { position: fixed; right: 6px; top: 10%; bottom: 10%; width: 4px; z-index: 9999; transition: width 0.35s cubic-bezier(0.25,0.1,0.25,1); }
  .custom-scrollbar-track { width: 100%; height: 100%; border-radius: 2px; background: rgba(255,255,255,0.04); transition: background 0.35s; }
  .custom-scrollbar-thumb { position: absolute; top: 0; width: 100%; min-height: 20px; border-radius: 2px; background: rgba(255,255,255,0.15); transition: background 0.35s, width 0.35s cubic-bezier(0.25,0.1,0.25,1); cursor: pointer; }
  .custom-scrollbar:hover { width: 8px; }
  .custom-scrollbar:hover .custom-scrollbar-thumb { background: rgba(255,255,255,0.35); }
  .custom-scrollbar.dragging { width: 8px; }
  .custom-scrollbar.dragging .custom-scrollbar-thumb { background: rgba(255,255,255,0.5); }

  /* ── Responsive Container ── */
  .wide-container {
    width: min(96%, 2200px);
    margin-left: auto; margin-right: auto;
    padding-left: max(12px, 1.5vw); padding-right: max(12px, 1.5vw);
  }

  /* ── Floating Glass Panel (shared by both subtitle areas) ── */
  .float-panel {
    background: rgba(249,246,240,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(139,115,85,0.10);
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.6);
    transition: opacity 0.4s cubic-bezier(0.25,0.1,0.25,1);
  }

  /* ── Floating Curtain / Matte Effect (Video only) ── */
  .video-curtain-wrapper {
    position: relative;
    padding: 0;
    background: none;
    border-radius: 0;
  }
  .video-player-inner {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    z-index: 1;
    background: #000;
    aspect-ratio: 16/9;
  }
  .video-player-inner video,
  .video-player-inner img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
  }
  .video-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.35) 0%, transparent 30%, transparent 70%, rgba(0,0,0,0.55) 100%);
    pointer-events: none;
    z-index: 2;
  }
  .video-controls-bar {
    position: absolute; bottom: 0; left: 0; right: 0; z-index: 5;
    padding: 10px 20px 8px;
    display: flex; align-items: center; gap: 5px;
    background: linear-gradient(0deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 60%, transparent 100%);
    opacity: 0; transition: opacity 0.35s ease;
    pointer-events: none;
    cursor: default; user-select: none;
  }
  .video-controls-bar * { cursor: default; user-select: none; }
  .video-player-inner:hover .video-controls-bar,
  .video-player-inner:hover .progress-bar-track { opacity: 1; pointer-events: auto; }
  .progress-bar-track {
    position: absolute;
    bottom: 75px; left: 20px; right: 20px;
    height: 3px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    cursor: pointer;
    z-index: 6;
    transition: height 0.2s, opacity 0.35s ease;
    opacity: 0;
  }
  .progress-bar-track:hover { height: 5px; }
  .progress-bar-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    width: 0%;
    position: relative;
    transition: width 0.1s linear;
  }
  .progress-bar-fill::after {
    content: '';
    position: absolute;
    right: -12px; top: 50%;
    transform: translateY(-50%);
    width: 24px; height: 24px;
    background: url(logo1.png) center/cover;
    border-radius: 50%;
    opacity: 1;
    box-shadow: 0 0 6px rgba(0,0,0,0.3);
    transition: opacity 0.2s, transform 0.15s;
  }
  .progress-bar-track:hover .progress-bar-fill::after { transform: translateY(-50%) scale(1.15); }

  .speed-seg { display:inline-flex;align-items:center;gap:0;padding:2px;border-radius:9999px;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.06); }
  .speed-seg button { padding:3px 10px;border-radius:9999px;font-size:13px;font-weight:500;color:rgba(255,255,255,0.45);background:transparent;border:none;cursor:pointer;font-family:inherit;transition:all .25s ease;white-space:nowrap; }
  .speed-seg button:hover { color:rgba(255,255,255,0.75); }
  .speed-seg button.active { color:#fff;background:rgba(255,255,255,0.18);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,0.15); }

  /* ── Glass Card (read.html style) ── */
  .glass-card {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 20px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.02), 0 4px 16px rgba(0,0,0,0.04), 0 8px 40px rgba(0,0,0,0.03);
    transition: all 0.55s cubic-bezier(0.25,0.1,0.25,1);
    position: relative; overflow: hidden;
  }
  .glass-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 2px 4px rgba(0,0,0,0.04), 0 12px 40px rgba(0,0,0,0.08), 0 20px 64px rgba(0,0,0,0.06);
    border-color: rgba(201,164,75,0.25);
  }

  /* ── Subtitle Toggle Buttons — Apple 白色调 ── */
  .sub-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.01em;
    border: 1px solid rgba(0,0,0,0.08);
    background: #f5f5f7;
    color: #86868b;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25,0.1,0.25,1);
    user-select: none;
    font-family: -apple-system, 'SF Pro Text', 'Inter', 'Noto Sans SC', sans-serif;
    position: relative;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }
  .sub-toggle .toggle-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #c7c7cc;
    transition: all 0.3s cubic-bezier(0.25,0.1,0.25,1);
    flex-shrink: 0;
  }
  .sub-toggle.active {
    background: #ffffff;
    border-color: rgba(0,0,0,0.06);
    color: #1d1d1f;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.05);
  }
  .sub-toggle.active .toggle-dot {
    background: #1f3528;
    box-shadow: 0 0 5px rgba(31,53,40,0.4);
  }
  .sub-toggle:hover {
    transform: translateY(-1px);
  }
  .sub-toggle.active:hover {
    box-shadow: 0 2px 6px rgba(0,0,0,0.1), 0 6px 16px rgba(0,0,0,0.07);
    color: #1d1d1f;
  }

  /* ── Capsule Button ── */
  .btn-capsule { display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:9999px;font-size:14px;font-weight:500;border:1px solid rgba(0,0,0,0.08);background:rgba(0,0,0,0.02);color:var(--text-secondary);transition:all .35s;white-space:nowrap;text-decoration:none; }
  .btn-capsule:hover { border-color:rgba(37,99,235,0.3);color:#1a1a1a;background:rgba(37,99,235,0.04); }
  .btn-capsule.accent { background:var(--accent);border-color:var(--accent);font-weight:600;color:#fff; }
  .btn-capsule.accent:hover { background:#3b82f6; }
  .btn-capsule.nav-active { background:rgba(37,99,235,0.1);border-color:rgba(37,99,235,0.3);color:#2563eb;font-weight:600; }

  .btn-icon {
    width: 30px; height: 30px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; background: rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.06);
    color: #555;
    transition: all 0.2s;
  }
  .btn-icon:hover { background: rgba(0,0,0,0.06); color: #1a1a1a; }
  .btn-icon.active { background: #1B3A5C; border-color: #1B3A5C; color: #fff; }
  .btn-icon.play-btn { width: 63px; height: 63px; font-size: 30px; color: #fff; background: transparent; border: none; transform: translateY(-5px); margin: 0 8px; }
  .video-controls-bar .btn-icon { background: transparent; border: none; color: #fff; }
  #skipFwdBtn { margin-left: 8px; }
  #repeatBtn { margin-left: 7px; margin-right: 30px; }
  .video-controls-bar { padding-right: 25px; }
  .btn-icon.btn-fullscreen { background: transparent; border: none; color: #fff; width: 45px; height: 45px; font-size: 20px; }
  .btn-icon.btn-fullscreen:hover { background: rgba(255,255,255,0.22); color: #fff; }

  /* ── Lyric Panel — 舞台式字幕（EN + Bilingual 共享 BEM 体系）── */

  /* 面板容器 */
  .lyric-panel {
    box-sizing: border-box;
    background: #F9F6F0;
    border: 1px solid rgba(139,115,85,0.12);
    border-radius: 14px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.03), inset 0 1px 0 rgba(255,255,255,0.8);
    overflow: hidden;
    transition: opacity 0.4s cubic-bezier(0.25,0.1,0.25,1);
    mask-image: linear-gradient(to bottom,black 0%,black 88%,transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom,black 0%,black 88%,transparent 100%);
  }
  .lyric-panel--en {
    margin-top: 8px;
    height: 260px;
    padding: 32px 0;
    overflow-y: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    position: relative;
    cursor: default; user-select: none;
  }
  .lyric-panel--en::-webkit-scrollbar { display: none; }
  .lyric-panel.hidden-panel { opacity: 0 !important; pointer-events: none; }

  /* 滚动区（双语面板内部） */
  .lyric-panel__scroll {
    flex: 1; min-height: 0; max-height: 100%; overflow-y: auto;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: rgba(0,0,0,0.12) rgba(0,0,0,0.04);
    mask-image: linear-gradient(to bottom, black 0%, black 88%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 0%, black 88%, transparent 100%);
    padding: 24px 20px 48px;
    position: relative;
    cursor: default; user-select: none;
  }
  .lyric-panel__scroll::-webkit-scrollbar { width: 4px; }
  .lyric-panel__scroll::-webkit-scrollbar-track { background: rgba(139,115,85,0.06); border-radius: 2px; }
  .lyric-panel__scroll::-webkit-scrollbar-thumb { background: rgba(139,115,85,0.18); border-radius: 2px; }
  .lyric-panel__scroll::-webkit-scrollbar-thumb:hover { background: rgba(139,115,85,0.35); }

  /* 单行字幕 — far 为默认外观，near/active 覆盖 */
  .lyric-line {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 5px 16px; border-radius: 8px;
    position: relative; cursor: pointer;
    transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    transform-origin: left center;
    opacity: 0.85; transform: scale(0.94);
  }
  .lyric-line--near {
    opacity: 0.65; transform: scale(0.96);
    padding-top: 7px; padding-bottom: 7px;
  }
  .lyric-line--active {
    opacity: 1; transform: scale(1);
    padding-top: 22px; padding-bottom: 22px;
    background: rgba(37,99,235,0.08);
  }

  /* 左侧金色竖线 */
  .lyric-line__accent {
    position: absolute; left: 0; top: 16%; height: 68%; width: 3px;
    border-radius: 2px; background: #2563eb; flex-shrink: 0;
    transform: scaleY(0);
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  }
  .lyric-line--active .lyric-line__accent { transform: scaleY(1); }

  /* Logo 标记 — 替代时间戳，垂直居中 */
  .lyric-line__logo {
    flex-shrink: 0; width: 14px; height: 14px;
    border-radius: 50%; object-fit: cover;
    align-self: center; opacity: 0.4;
    transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  }
  .lyric-line--near .lyric-line__logo { width: 16px; height: 16px; opacity: 0.55; }
  .lyric-line--active .lyric-line__logo { width: 22px; height: 22px; opacity: 1; }

  /* 英文文本 — 默认 far 外观 */
  .lyric-line__en {
    font-family: 'Source Serif 4','Georgia',serif;
    font-size: 19px; font-weight: 400; color: #7a7068;
    line-height: 1.55;
    transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  }
  .lyric-line--near .lyric-line__en { font-size: 19px; color: #5a5048; }
  .lyric-line--active .lyric-line__en { font-size: 24px; font-weight: 600; color: #1a1a1a; }

  /* 中文文本 — 默认 far 外观 */
  .lyric-line__zh {
    font-family: 'Noto Serif SC','Source Serif 4','Georgia',serif;
    font-size: 14px; color: #8a7e72;
    line-height: 1.55; margin-top: 2px;
    transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  }
  .lyric-line--near .lyric-line__zh { font-size: 13px; color: #6b6058; }
  .lyric-line--active .lyric-line__zh { font-size: 14px; font-weight: 500; color: #4a3f35; margin-top: 6px; }

  /* 双语面板默认字号加大 */
  .lyric-panel__scroll .lyric-line__en { font-size: 19px; }
  .lyric-panel__scroll .lyric-line__zh { font-size: 17px; }
  .lyric-panel__scroll .lyric-line--near .lyric-line__en { font-size: 20px; }
  .lyric-panel__scroll .lyric-line--near .lyric-line__zh { font-size: 17px; }
  .lyric-panel__scroll .lyric-line--active .lyric-line__en { font-size: 24px; }
  .lyric-panel__scroll .lyric-line--active .lyric-line__zh { font-size: 16px; }

  /* 语法高亮 — 默认红色 */
  .grammar-hl {
    font-weight: 600;
    background: rgba(177,38,52,0.07);
    border-bottom: 1.5px solid rgba(177,38,52,0.45);
    padding: 1px 4px; border-radius: 2px;
    display: inline; color: inherit;
  }
  /* 等级颜色 — 文字+背景按等级分色，下划线统一红色 */
  .lyric-line .grammar-hl--gaokao { background: rgba(22,163,74,0.1); border-color: rgba(177,38,52,0.5); color: #16a34a; }
  .lyric-line .grammar-hl--cet4   { background: rgba(13,148,136,0.1); border-color: rgba(177,38,52,0.5); color: #0d9488; }
  .lyric-line .grammar-hl--cet6   { background: rgba(37,99,235,0.1); border-color: rgba(177,38,52,0.5); color: #2563eb; }
  .lyric-line .grammar-hl--kaoyan { background: rgba(124,58,237,0.1); border-color: rgba(177,38,52,0.5); color: #7c3aed; }
  .lyric-line .grammar-hl--toefl  { background: rgba(234,88,12,0.1); border-color: rgba(177,38,52,0.5); color: #ea580c; }
  .lyric-line .grammar-hl--ielts  { background: rgba(234,88,12,0.1); border-color: rgba(177,38,52,0.5); color: #ea580c; }
  .lyric-line .grammar-hl--gre    { background: rgba(220,38,38,0.1); border-color: rgba(177,38,52,0.5); color: #dc2626; }
  .lyric-line .grammar-hl--collins{ background: rgba(185,28,28,0.1); border-color: rgba(177,38,52,0.5); color: #b91c1c; }

  /* 朗读按钮 */
  .lyric-line__read {
    flex-shrink: 0; width: 24px; height: 24px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(0,0,0,0.06); border-radius: 50%;
    background: transparent; color: #aaa;
    font-size: 11px; cursor: pointer;
    transition: all 0.35s; margin-left: auto; align-self: center;
    opacity: 0;
  }
  .lyric-line:hover .lyric-line__read,
  .lyric-line--active .lyric-line__read { opacity: 1; }
  .lyric-line__read:hover { background: rgba(0,0,0,0.04); color: #666; }
  .lyric-line--active .lyric-line__read { border-color: rgba(37,99,235,0.2); color: #2563eb; }
  .lyric-line__read.playing { background: rgba(37,99,235,0.1); border-color: rgba(37,99,235,0.3); color: #2563eb; }

  /* ═══ Right Panel 容器（保留布局功能） ═══ */
  .right-panel {
    box-sizing: border-box;
    background: #f7f3ed;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 16px;
    padding: 16px;
    min-height: 0;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    transition: opacity 0.4s cubic-bezier(0.25,0.1,0.25,1);
  }
  .right-panel.hidden-panel { opacity: 0 !important; pointer-events: none; }

  /* ── Notification Toast ── */
  .toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 9999px;
    padding: 10px 24px;
    font-size: 13px;
    color: #1a1a1a;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    z-index: 9999;
    transition: transform 0.4s cubic-bezier(0.25,0.1,0.25,1);
    display: flex;
    align-items: center;
    gap: 8px;
    pointer-events: none;
  }
  .toast.show { transform: translateX(-50%) translateY(0); }

  /* ── Subscribe Modal ── */
  .modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); z-index: 100000; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.35s; }
  .modal-overlay.open { opacity: 1; pointer-events: auto; }
  .modal-box { background: rgba(20,20,25,0.95); border: 1px solid rgba(255,255,255,0.08); border-radius: 20px; padding: 36px; max-width: 520px; width: 90%; text-align: center; box-shadow: 0 24px 80px rgba(0,0,0,0.5); }
  .modal-box h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
  .modal-box .modal-sub { font-size: 13px; color: var(--text-muted); margin-bottom: 28px; }
  .modal-logos { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 24px; }
  .modal-logo-item { display: flex; flex-direction: column; align-items: center; gap: 8px; cursor: pointer; transition: transform 0.3s; }
  .modal-logo-item:hover { transform: translateY(-4px); }
  .modal-logo-item .logo-circle { width: 64px; height: 64px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 28px; border: 1px solid rgba(255,255,255,0.08); }
  .modal-logo-item .logo-label { font-size: 12px; color: var(--text-muted); }
  .modal-qr { width: 120px; height: 120px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 11px; color: var(--text-muted); }
  .modal-close { margin-top: 24px; padding: 8px 28px; border-radius: 9999px; border: 1px solid rgba(255,255,255,0.12); background: rgba(255,255,255,0.04); color: var(--text-secondary); font-size: 13px; cursor: pointer; transition: all 0.3s; }
  .modal-close:hover { background: rgba(255,255,255,0.08); color: #fff; }

  /* ── Animations ── */
  .stagger-up {
    opacity: 0;
    transform: translateY(40px);
  }
  .stagger-up.visible {
    animation: staggerUp 0.8s cubic-bezier(0.25,0.1,0.25,1) forwards;
  }
  @keyframes staggerUp {
    to { opacity: 1; transform: translateY(0); }
  }
  .fade-in { opacity: 0; }
  .fade-in.visible {
    animation: fadeIn 0.8s cubic-bezier(0.25,0.1,0.25,1) forwards;
  }
  @keyframes fadeIn { to { opacity: 1; } }

  /* ── Shimmer text ── */
  @keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
  }
  .shimmer-text { user-select:none;cursor:default;
    background: linear-gradient(90deg, #f1f1f3 0%, #2563eb 50%, #f1f1f3 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s linear infinite;
  }

  /* ── Floating particles ── */
  .particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    animation: floatUp 8s linear infinite;
    opacity: 0;
  }
  @keyframes floatUp {
    0% { transform: translateY(0) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-100vh) scale(1); opacity: 0; }
  }

  /* ── Video thumbnail placeholder ── */
  .video-placeholder {
    background: radial-gradient(ellipse at 30% 40%, #1e1e2e 0%, #0a0a0b 100%);
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
  }
  .play-btn-center {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: rgba(37,99,235,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    transition: all 0.3s cubic-bezier(0.25,0.1,0.25,1);
    box-shadow: 0 8px 40px rgba(37,99,235,0.4);
    
    z-index: 3;
    position: relative;
  }
  .play-btn-center:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 56px rgba(37,99,235,0.6);
  }
  .play-ripple {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px solid rgba(37,99,235,0.3);
    animation: ripple 2s ease-out infinite;
  }
  .play-ripple:nth-child(2) { animation-delay: 0.6s; }
  .play-ripple:nth-child(3) { animation-delay: 1.2s; }
  @keyframes ripple {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.8); opacity: 0; }
  }
  @keyframes spin {
    to { transform: rotate(360deg); }
  }

  /* ── Navigation Dot ── */
  .nav-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.3); transition: all 0.3s; }
  .nav-dot.active { background: var(--accent); box-shadow: 0 0 12px rgba(37,99,235,0.6); }

  /* ── Volume Slider ── */
  .volume-slider {
    -webkit-appearance: none;
    width: 86px; height: 2px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    outline: none;
  }
  .volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: #fff;
    
  }

  /* ── Horizontal Scroll Card Library ── */
  .card-scroll-wrapper {
    overflow-x: auto; overflow-y: hidden;
    scrollbar-width: none; -ms-overflow-style: none;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }
  .card-scroll-wrapper::-webkit-scrollbar { display: none; }
  .card-scroll-inner { display: flex; gap: 16px; padding: 0 2px; }
  .vlog-card {
    flex-shrink: 0; width: 280px;
    scroll-snap-align: start;
  }
  .vlog-card .card-thumb {
    aspect-ratio: 16/9; border-radius: 12px;
    overflow: hidden; position: relative;
  }
  .vlog-card .card-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.7s;
  }
  .vlog-card:hover .card-thumb img { transform: scale(1.08); }
  .vlog-card .card-thumb .thumb-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.5) 100%);
  }
  .vlog-card .card-thumb .thumb-duration {
    position: absolute; bottom: 8px; right: 8px;
    font-size: 11px; background: rgba(0,0,0,0.7);
    color: #fff; padding: 2px 8px; border-radius: 9999px;
  }
  .vlog-card .card-info { padding: 10px 4px 4px; }
  .vlog-card .card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 6px; }
  .vlog-card .card-title {
    font-size: 13px; font-weight: 600; color: var(--text-primary);
    line-height: 1.4; margin-bottom: 4px;
  }
  .vlog-card .card-excerpt {
    font-size: 11px; color: var(--text-muted); line-height: 1.5;
  }
  .tag-filter-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 9999px; font-size: 12px; font-weight: 500;
    border: 1px solid rgba(0,0,0,0.08);
    background: rgba(0,0,0,0.02); color: var(--text-secondary);
    transition: all 0.3s; white-space: nowrap;
  }
  .tag-filter-btn:hover { border-color: rgba(0,0,0,0.15); color: var(--text-primary); }
  .tag-filter-btn.active { background: var(--tag-bg, rgba(234,179,8,0.12)); border-color: var(--tag-border, rgba(234,179,8,0.35)); color: var(--tag-text, #b45309); }
  .date-chip.active { background:var(--accent);border-color:var(--accent);color:#fff; }

  /* ── Touch devices ── */
  @media (hover: none) and (pointer: coarse) {
    body { cursor: auto; }
    body * { cursor: auto !important; }
  }

  /* ── Responsive ── */
  @media (max-width: 1024px) {
    .vlog-card { width: 240px; }
    .right-panel { width: 100% !important; }
  }
  @media (max-width: 768px) {
    .hero-grid { gap: 16px; }
    .video-wrap { width: 96%; }
    .btn-float { margin-right: 4%; }
    .video-curtain-wrapper { padding: 0; }
    .video-player-inner { border-radius: 12px; }
    .lyric-panel--en { padding: 24px 0; }
    .lyric-line--active .lyric-line__en { font-size: 20px; }
    .lyric-line--near .lyric-line__en { font-size: 14px; }
    .lyric-line--far .lyric-line__en { font-size: 11px; }
    .right-panel { padding: 12px; }
    .lyric-line--active .lyric-line__zh { font-size: 13px; }
    .lyric-line--near .lyric-line__zh { font-size: 10px; }
    .lyric-line--far .lyric-line__zh { font-size: 9px; }
    .vlog-card { width: 220px; }
    .vlog-card .card-thumb { aspect-ratio: 16/9; }
    .card-scroll-wrapper { padding-bottom: 4px; }
    .btn-icon { width: 28px; height: 28px; font-size: 12px; }
    .btn-icon.play-btn { width: 54px; height: 54px; font-size: 27px; }
    .lyric-panel--en { height: 240px; }
    .viewport-section { padding-top: 64px !important; }
  }
  @media (max-width: 640px) {
    .hero-grid { gap: 12px; }
    .video-wrap { width: 98%; }
    .btn-float { margin-right: 2%; }
    .video-curtain-wrapper { padding: 0; border-radius: 0; }
    .video-player-inner { border-radius: 10px; }
    .video-controls-bar { padding: 8px 10px; gap: 6px; }
    .sub-toggle { padding: 6px 10px; font-size: 10px; }
    .vlog-card { width: 200px; }
    .lyric-line--active .lyric-line__en { font-size: 15px; }
    .lyric-panel--en { padding: 4px 0; height: 210px; }
  }
  @media (max-width: 400px) {
    .vlog-card { width: 160px; }
    .lyric-line--active .lyric-line__en { font-size: 13px; }
    .lyric-panel--en { height: 180px; }
    .video-controls-bar { padding: 6px 8px; gap: 4px; }
    .btn-icon { width: 26px; height: 26px; font-size: 11px; }
    .btn-icon.play-btn { width: 51px; height: 51px; font-size: 24px; }
  }
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(12px,-8px) scale(1.04)}50%{transform:translate(-6px,-16px) scale(0.96)}75%{transform:translate(-14px,6px) scale(1.02)}}
.float-logo{position:fixed;pointer-events:none;z-index:9999;border-radius:50%;filter:blur(1px)}
.float-logo--tl{opacity:.07;width:140px;height:140px;top:12%;left:3%;transform:rotate(-18deg);animation:drift 18s ease-in-out infinite}
.float-logo--br{opacity:.065;width:120px;height:120px;bottom:12%;right:3%;transform:rotate(-8deg);animation:drift 17s ease-in-out infinite;animation-delay:-5s}
@media(max-width:640px){.float-logo{display:none}}

/* ── Hero Section ── */
.vlog-hero{padding-top:73px}
.vlog-hero-bg{background:radial-gradient(ellipse at 30% 35%,rgba(37,99,235,0.06) 0%,transparent 50%),radial-gradient(ellipse at 70% 65%,rgba(234,179,8,0.03) 0%,transparent 50%)}
.vlog-hero-grid{display:grid!important;grid-template-columns:60% 40%!important;gap:0!important}
@media(max-width:768px){.vlog-hero-grid{gap:16px!important}}
@media(max-width:640px){.vlog-hero-grid{gap:12px!important}}

/* ═══ 手机端 hero 排版修复(第一版, 待细调) ═══ */
@media(max-width:640px){
  /* 清出固定导航栏高度(nav min-height:122px + 刘海安全区), 让标题/功能不再躲进导航栏 */
  .vlog-hero.viewport-section{padding-top:calc(138px + env(safe-area-inset-top,0px))!important;padding-bottom:8px!important}
  /* 缩小 More to Watch 与中英字幕之间的垂直间距(py-24=96px 太大) */
  .vlog-more-section{padding-top:16px!important}
  /* 日历按钮缩小 0.8 */
  .watch-cal-btn{transform:scale(0.8)!important;transform-origin:center center!important}
  #moreWatchGrid{grid-template-columns:1fr!important;gap:16px!important}
  #moreWatchGrid .vlog-card{width:100%!important}
  /* 缩小 More to Watch 标题与日历按钮的距离(mb-8=32px→10px) */
  .vlog-more-section .wide-container > div:first-child{margin-bottom:10px!important}
  /* 日历弹窗保持原尺寸(对齐 word 基准) */
  /* 60%/40% 两栏 → 单列堆叠 */
  .vlog-hero-grid{grid-template-columns:1fr!important;gap:16px!important;align-items:start!important}
  /* 标题行(标题+日期+EN/中英)允许换行, 不溢出 */
  .vlog-video-header{flex-wrap:wrap!important;gap:8px!important;align-items:center!important;justify-content:center!important}
  .vlog-video-header h1{font-size:18px!important;flex:1 1 100%!important;text-align:center!important}
  /* 关闭字幕时板块整体收起, 下方内容自动上提 */
  .lyric-panel.hidden-panel,.right-panel.hidden-panel{display:none!important}
  /* EN 按钮移到日期左边(顺序: EN → 日期 → 中英) */
  #toggleEnSubs{order:-1!important}
  /* 控件行整行铺开: EN 居中于左半, 日期正中, 中英 居中于右半 */
  .vlog-video-header > div{flex:1 1 100%!important;justify-content:space-evenly!important;gap:0!important}
  /* 双语面板堆叠后满宽 + 限高可滚 */
  .vlog-right-panel{width:100%!important;align-self:start!important;height:auto!important}
  .vlog-right-panel .lyric-panel__scroll{flex:none!important;max-height:45vh!important;overflow-y:auto!important;-webkit-mask-image:none!important;mask-image:none!important}
  /* 取消右侧滚动条(手机端不需要, 不好看) */
  .custom-scrollbar{display:none!important}
  .lyric-panel__scroll{scrollbar-width:none!important;-ms-overflow-style:none!important}
  .lyric-panel__scroll::-webkit-scrollbar{display:none!important;width:0!important}
  /* 左右边距对齐 home 主体(每侧 12px) */
  .wide-container{width:100%!important;padding-left:8px!important;padding-right:8px!important}
  /* 缩小字幕英文词间距(字号不变) */
  .lyric-word{padding:1px 0!important;margin:0 -1px!important}
  .lyric-line__en{word-spacing:-2px!important}
  /* 双语字幕 logo/文字 左侧留白过大: 收紧嵌套内边距(60px→~24px) */
  .vlog-right-panel{padding:0!important}
  .lyric-panel__scroll{padding-top:4px!important;padding-bottom:8px!important;padding-left:4px!important;padding-right:6px!important}
  .lyric-line{padding-left:8px!important;padding-right:8px!important}
  /* 收紧高亮行上下内边距(首句上方 + 播放时每句) */
  .lyric-line--active{padding-top:10px!important;padding-bottom:10px!important}
  /* 中英字幕高亮句字体缩小(中英都缩) */
  .lyric-panel__scroll .lyric-line--active .lyric-line__en{font-size:16px!important}
  .lyric-panel__scroll .lyric-line--active .lyric-line__zh{font-size:11px!important}
  /* 手机端隐藏双语面板标题行(Bilingual Subtitles / Grammar highlighted)省空间, 电脑端不动 */
  .vlog-right-panel > div:first-child{display:none!important}
  .vlog-right-panel > .lyric-panel__scroll{margin-top:0!important}
}
@media(max-width:400px){
  .vlog-hero.viewport-section{padding-top:calc(122px + env(safe-area-inset-top,0px))!important}
  .vlog-video-header h1{font-size:16px!important}
}
.vlog-video-col{box-sizing:border-box;display:flex;flex-direction:column;gap:4px}
.vlog-video-header{flex-shrink:0;padding:0}
.vlog-video-header h1{margin:0}
.vlog-today-date{font-size:12px;color:var(--text-muted);white-space:nowrap}
.vlog-loading-spinner{width:48px;height:48px;border:3px solid rgba(255,255,255,0.15);border-top-color:#2563eb;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 12px}
.vlog-loading-text{font-size:12px;color:rgba(255,255,255,0.5)}
.vlog-time{min-width:36px;text-align:right;font-size:14px!important;margin-left:10px}
#durationDisplay{font-size:13px!important;margin-right:10px}

/* ── Right Panel ── */
.vlog-right-panel{box-sizing:border-box}
.vlog-right-title{color:#888}
.vlog-grammar-dot{background:#eab308}
.vlog-grammar-label{color:#aaa}

/* ── More to Watch ── */
.vlog-more-section{background:#faf8f5}
.vlog-more-title{font-family:'Source Serif 4','Georgia',serif;font-size:clamp(28px,3.5vw,42px);font-weight:700;color:#1a1a1a;letter-spacing:-0.02em}

/* ── Watch Calendar Button ── */
.watch-cal-btn{display:inline-flex;align-items:center;gap:12px;padding:14px 32px;border-radius:12px;border:1.5px solid rgba(201,164,75,0.3);background:linear-gradient(135deg,rgba(26,26,42,0.95),rgba(15,23,42,0.95));color:#e2c170;font-size:15px;font-weight:600;cursor:pointer;font-family:'Source Serif 4','Georgia',serif;letter-spacing:0.04em;box-shadow:0 0 20px rgba(180,130,40,0.12),inset 0 1px 0 rgba(255,255,255,0.06);transition:all 0.35s cubic-bezier(0.25,0.1,0.25,1)}
.watch-cal-btn:hover{box-shadow:0 0 32px rgba(180,130,40,0.25),inset 0 1px 0 rgba(255,255,255,0.1);border-color:rgba(226,193,112,0.6);transform:translateY(-1px)}
.watch-cal-btn__label{font-family:'Source Serif 4','Georgia',serif}

/* ── Watch Calendar Modal ── */
.wcal-overlay{display:none;position:fixed;inset:0;z-index:100000;background:rgba(10,10,20,0.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);align-items:center;justify-content:center;font-family:'Inter','Noto Sans SC',sans-serif}
.wcal-box{position:relative;background:#fff;width:440px;max-width:95%;border-radius:18px;box-shadow:0 24px 80px rgba(0,0,0,0.18),0 0 0 1px rgba(0,0,0,0.04);overflow:hidden}
.wcal-header{background:linear-gradient(135deg,rgba(26,26,42,0.96),rgba(15,23,42,0.96));padding:24px 32px 20px;color:#fff;position:relative;overflow:hidden}
.wcal-header__decor--tr{position:absolute;top:-40px;right:-40px;width:120px;height:120px;border-radius:50%;background:rgba(201,164,75,0.06);pointer-events:none}
.wcal-header__decor--bl{position:absolute;bottom:-30px;left:-20px;width:80px;height:80px;border-radius:50%;background:rgba(201,164,75,0.04);pointer-events:none}
.wcal-header__row{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between}
.wcal-header__title{font-family:'Source Serif 4','Georgia',serif;font-size:28px;font-weight:700;letter-spacing:0.03em;color:#e2c170;margin-bottom:2px}
.wcal-header__sub{font-size:11px;color:rgba(255,255,255,0.45);letter-spacing:0.06em;font-weight:400}
.wcal-header__date{font-family:'Source Serif 4','Georgia',serif;font-size:28px;font-weight:700;letter-spacing:0.03em;color:#f59e0b;white-space:nowrap}
.wcal-year-nav{display:flex;align-items:center;justify-content:space-between;padding:20px 28px 8px}
.wcal-year-nav__btn{cursor:pointer;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;color:#94a3b8;font-size:18px;user-select:none;transition:all 0.2s}
.wcal-year-nav__btn:hover{background:#f5f5f4;color:#1a1a1a}
.wcal-year-nav__label{font-family:'Source Serif 4','Georgia',serif;font-size:26px;font-weight:700;color:#1a1a1a;letter-spacing:0.02em}
.wcal-month-nav{display:flex;align-items:center;justify-content:center;gap:24px;padding:0 28px 12px}
.wcal-month-nav__btn{cursor:pointer;padding:6px 14px;border-radius:9999px;border:1px solid rgba(0,0,0,0.08);font-size:12px;color:#78716c;user-select:none;letter-spacing:0.03em;font-weight:500;transition:all 0.2s;font-family:'Inter','Noto Sans SC',sans-serif}
.wcal-month-nav__btn:hover{background:#faf8f5;border-color:rgba(201,164,75,0.4);color:#1a1a1a}
.wcal-month-nav__label{cursor:pointer;font-size:30px;color:#c9a44b;font-weight:700;padding:4px 0;user-select:none;letter-spacing:0.04em;font-family:'Source Serif 4','Georgia',serif;transition:opacity 0.2s}
.wcal-month-nav__label:hover{opacity:0.7}
.wcal-divider{margin:4px 28px 0;border-top:1px solid rgba(0,0,0,0.05)}
.wcal-weekdays{display:grid;grid-template-columns:repeat(7,1fr);text-align:center;padding:12px 24px 6px}
.wcal-weekdays__day{font-size:10px;font-weight:500;letter-spacing:0.06em;font-family:'Inter','Noto Sans SC',sans-serif;color:#a8a29e}
.wcal-weekdays__day--sun,.wcal-weekdays__day--sat{color:#c9a44b;font-weight:600;letter-spacing:0.08em}
.wcal-grid{display:grid;grid-template-columns:repeat(7,1fr);text-align:center;padding:4px 24px 16px;row-gap:4px}
/* mac 风格关闭: 右上角红点带 × */
.wcal-close__btn{position:absolute;top:12px;right:12px;z-index:10;width:16px;height:16px;padding:0;margin:0;border:none;border-radius:50%;background:#ff5f57;color:rgba(0,0,0,0.5);font-size:12px;font-weight:700;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background 0.2s,transform 0.15s;box-shadow:inset 0 0 0 0.5px rgba(0,0,0,0.12)}
.wcal-close__btn:hover{background:#ff453a;color:rgba(0,0,0,0.72);transform:scale(1.12)}

/* ── Video player ── */
.vlog-curtain-wrapper{animation-delay:0.15s;box-sizing:border-box}
.vlog-video-inner{box-sizing:border-box}
#mainVideo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:16px}
.lyric-panel--en{animation-delay:0.3s;box-sizing:border-box}

/* ── Skip button icons ── */
.vlog-skip-icon{width:16px;height:16px}
/* ═══ Landscape phone ═══ */
@media(max-height:500px) and (orientation:landscape){
  .video-wrap{width:100%!important;max-height:70vh!important}
  .video-player-inner{border-radius:8px!important}
  .lyric-panel--en{height:120px!important}
  .right-panel{padding:8px!important}
  .vlog-card{width:140px!important}
  .viewport-section{padding-top:48px!important}
}


/* 视频锁横幅放大 */
#vlogLockBanner .pl-banner { padding: 44px 48px !important; }
#vlogLockBanner .pl-banner__title { font-size: 20px !important; }
#vlogLockBanner .pl-banner__sub { font-size: 15px !important; }
#vlogLockBanner .pl-banner__icon { font-size: 40px !important; }
#vlogLockBanner .pl-banner__ring--inner { width: 56px !important; height: 56px !important; margin: -28px 0 0 -28px !important; }
#vlogLockBanner .pl-banner__ring--outer { width: 72px !important; height: 72px !important; margin: -36px 0 0 -36px !important; }

/* 字幕卡片锁：透明背景 保留跳动+扫光 放大2倍 */
.sub-card-lock .pl-card-overlay { background: transparent !important; backdrop-filter: none !important; }
.sub-card-lock .pl-card-overlay__icon { font-size: 34px !important; }
.sub-card-lock .pl-card-overlay__text { font-size: 14px !important; color: #d2c3aa !important; }

/* ── Word Popup ── */
.lyric-word {
  cursor: pointer; display: inline-block;
  transition: all 0.25s cubic-bezier(0.25,0.1,0.25,1);
  border-radius: 4px; padding: 1px 3px; margin: 0 1px;
  border: 2px solid transparent;
}
.lyric-word:hover {
  transform: translateY(-2px) scale(1.08);
  border-color: #2563eb;
  background: rgba(37,99,235,0.08);
  box-shadow: 0 0 16px rgba(37,99,235,0.25), 0 4px 12px rgba(37,99,235,0.15);
  z-index: 1;
}
.lyric-word.wp-active {
  border-color: #2563eb;
  background: rgba(37,99,235,0.1);
  box-shadow: 0 0 20px rgba(37,99,235,0.3), 0 4px 16px rgba(37,99,235,0.18);
  transform: translateY(-3px) scale(1.1);
  color: inherit;
  z-index: 2;
}
.wp-popup {
  display: none; position: fixed; z-index: 10001;
  cursor: default; user-select: none;
  background: #fff; border-radius: 14px;
  padding: 18px 22px; max-width: 340px; min-width: 180px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.18), 0 0 0 1px rgba(0,0,0,0.06);
  font-family: 'Inter','Noto Sans SC',sans-serif;
  animation: wpIn 0.25s cubic-bezier(0.25,0.1,0.25,1);
}
@keyframes wpIn { from { opacity:0; transform:translateY(8px) scale(0.95); } to { opacity:1; transform:translateY(0) scale(1); } }
.wp-popup__close {
  position: absolute; top: 10px; right: 10px; z-index: 2;
  width: 16px; height: 16px; padding: 0; margin: 0;
  border: none; border-radius: 50%;
  background: #ff5f57; color: rgba(0,0,0,0.5);
  font-size: 12px; font-weight: 700; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-family: inherit;
  transition: background 0.2s, transform 0.15s;
  box-shadow: inset 0 0 0 0.5px rgba(0,0,0,0.12);
}
.wp-popup__close:hover { background: #ff453a; color: rgba(0,0,0,0.72); transform: scale(1.12); }
.wp-popup__word { font-size: 18px; font-weight: 700; color: #1a1a1a; margin-bottom: 4px; padding-right: 20px; }
.wp-popup__ipa { font-size: 13px; color: #94a3b8; margin-bottom: 8px; }
.wp-popup__def { font-size: 13px; color: #475569; line-height: 1.6; margin-bottom: 4px; }
.wp-popup__trans { font-size: 13px; color: #2563eb; line-height: 1.6; }