:root {
    --bg: #f6f7fa;
    --bg-soft: #eef1f6;
    --card: #ffffff;
    --card-border: rgba(15, 30, 60, 0.08);
    --text: #17203a;
    --text-dim: #56617a;
    --text-faint: #8b95ab;
    --accent: #e8940a;
    --accent-strong: #c2740a;
    --accent-2: #f97316;
    --accent-soft: rgba(232, 148, 10, 0.10);
    --green: #0da271;
    --radius: 16px;
    --max: 1160px;
    --shadow-sm: 0 2px 10px rgba(15, 30, 60, 0.05);
    --shadow-md: 0 10px 34px rgba(15, 30, 60, 0.08);
    --shadow-lg: 0 24px 70px rgba(15, 30, 60, 0.12);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
      "Microsoft YaHei", "Segoe UI", sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }
  .wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

  /* ---------- 背景装饰 ---------- */
  .bg-glow {
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background:
      radial-gradient(900px 520px at 12% -5%, rgba(232, 148, 10, 0.13), transparent 60%),
      radial-gradient(820px 520px at 92% 8%, rgba(249, 115, 22, 0.09), transparent 60%),
      radial-gradient(760px 620px at 50% 115%, rgba(13, 162, 113, 0.06), transparent 60%);
  }
  .bg-grid {
    position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.5;
    background-image:
      linear-gradient(rgba(15, 30, 60, 0.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(15, 30, 60, 0.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
  }

  /* ---------- 导航 ---------- */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    background: rgba(255, 255, 255, 0.82);
    border-bottom: 1px solid var(--card-border);
  }
  .nav-inner {
    max-width: var(--max); margin: 0 auto; padding: 0 24px;
    height: 64px; display: flex; align-items: center; gap: 20px;
  }
  .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; letter-spacing: 0.3px; }
  .brand img { width: 30px; height: 30px; border-radius: 8px; }
  .nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 14.5px; color: var(--text-dim); }
  .nav-links a { transition: color 0.2s; }
  .nav-links a:hover { color: var(--accent-strong); }
  .lang-switch {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 42px; height: 36px; padding: 0 10px; border-radius: 10px;
    color: var(--text-dim); background: var(--card);
    border: 1px solid rgba(15, 30, 60, 0.14); font-size: 13px; font-weight: 700;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
  }
  .lang-switch:hover { color: var(--accent-strong); border-color: rgba(232, 148, 10, 0.5); background: var(--accent-soft); }
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 26px; border-radius: 12px; font-size: 15px; font-weight: 600;
    border: 1px solid transparent; cursor: pointer; transition: all 0.25s;
    white-space: nowrap;
  }
  .btn-primary {
    background: linear-gradient(135deg, #f5a623, var(--accent-2));
    color: #ffffff; box-shadow: 0 4px 18px rgba(232, 148, 10, 0.35);
  }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(232, 148, 10, 0.45); }
  .btn-ghost {
    background: var(--card); color: var(--text);
    border-color: rgba(15, 30, 60, 0.14);
    box-shadow: var(--shadow-sm);
  }
  .btn-ghost:hover { border-color: rgba(232, 148, 10, 0.5); color: var(--accent-strong); }
  .btn-sm { padding: 9px 18px; font-size: 14px; border-radius: 10px; }
  .btn-lg { padding: 16px 36px; font-size: 17px; border-radius: 14px; }

  /* ---------- Hero ---------- */
  .hero { padding: 160px 0 90px; text-align: center; position: relative; }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 18px; border-radius: 100px; font-size: 13.5px; font-weight: 600;
    color: var(--accent-strong); background: var(--accent-soft);
    border: 1px solid rgba(232, 148, 10, 0.28); margin-bottom: 28px;
  }
  .hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px rgba(13, 162, 113, 0.7); }
  h1 {
    font-size: clamp(38px, 6.2vw, 68px); font-weight: 800; line-height: 1.18;
    letter-spacing: -1px; margin-bottom: 24px;
  }
  h1 .grad {
    background: linear-gradient(120deg, var(--accent) 10%, var(--accent-2) 60%, #fb923c);
    -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .hero-sub {
    font-size: clamp(16px, 2vw, 19px); color: var(--text-dim);
    max-width: 720px; margin: 0 auto 40px;
  }
  .hero-sub strong { color: var(--text); font-weight: 600; }
  .hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; align-items: center; }
  .hero-note { margin-top: 18px; font-size: 13.5px; color: var(--text-faint); }
  .hero-note a { color: var(--accent-strong); border-bottom: 1px dashed rgba(232, 148, 10, 0.45); }
  .hero-note a:hover { border-bottom-style: solid; }

  .stats {
    display: flex; justify-content: center; gap: 0; margin-top: 64px;
    border: 1px solid var(--card-border); border-radius: var(--radius);
    background: var(--card); box-shadow: var(--shadow-md);
    overflow: hidden; flex-wrap: wrap;
  }
  .stat { padding: 26px 44px; text-align: center; flex: 1; min-width: 150px; }
  .stat + .stat { border-left: 1px solid var(--card-border); }
  .stat b { display: block; font-size: 30px; font-weight: 800; color: var(--accent-strong); letter-spacing: -0.5px; }
  .stat span { font-size: 13.5px; color: var(--text-dim); }

  /* ---------- 通用区块 ---------- */
  section { padding: 96px 0; }
  .sec-head { text-align: center; max-width: 680px; margin: 0 auto 60px; }
  .sec-tag {
    display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px;
    color: var(--accent-strong); text-transform: uppercase; margin-bottom: 14px;
  }
  .sec-head h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; letter-spacing: -0.5px; line-height: 1.25; }
  .sec-head p { margin-top: 16px; color: var(--text-dim); font-size: 16.5px; }

  /* ---------- 痛点 ---------- */
  .pain { padding: 70px 0 0; }
  .pain-strip {
    display: flex; justify-content: center; gap: 18px; flex-wrap: wrap;
  }
  .pain-item {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 24px; border-radius: 100px; font-size: 15px; color: var(--text-dim);
    background: var(--card); border: 1px solid var(--card-border); box-shadow: var(--shadow-sm);
  }
  .pain-item s { text-decoration-color: rgba(220, 60, 60, 0.55); text-decoration-thickness: 2px; }
  .pain-item .x { color: #dc3c3c; font-weight: 700; }

  /* ---------- 功能卡片 ---------- */
  .features { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
  .feature {
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: var(--radius); padding: 32px 28px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    position: relative; overflow: hidden; box-shadow: var(--shadow-sm);
  }
  .feature:hover {
    transform: translateY(-6px); border-color: rgba(232, 148, 10, 0.4);
    box-shadow: var(--shadow-lg);
  }
  .feature::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0; transition: opacity 0.3s;
  }
  .feature:hover::before { opacity: 1; }
  .feature:nth-child(1), .feature:nth-child(2) { grid-column: span 3; }
  .feature:nth-child(3), .feature:nth-child(4), .feature:nth-child(5) { grid-column: span 2; }
  .feature:nth-child(6), .feature:nth-child(7) { grid-column: span 3; }
  .feature .icon {
    width: 48px; height: 48px; border-radius: 12px; margin-bottom: 20px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-soft); border: 1px solid rgba(232, 148, 10, 0.22);
  }
  .feature .icon svg { width: 24px; height: 24px; stroke: var(--accent-strong); }
  .feature h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
  .feature p { font-size: 14.5px; color: var(--text-dim); }

  /* ---------- 试听示例 ---------- */
  .samples-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .sample {
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm);
    transition: all 0.3s;
  }
  .sample:hover { transform: translateY(-5px); border-color: rgba(232, 148, 10, 0.4); box-shadow: var(--shadow-md); }
  .sample-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
  .sample-avatar {
    width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, var(--accent-soft), rgba(249, 115, 22, 0.12));
    border: 1px solid rgba(232, 148, 10, 0.25);
    display: flex; align-items: center; justify-content: center;
  }
  .sample-avatar svg { width: 24px; height: 24px; stroke: var(--accent-strong); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
  .sample-name { font-size: 17px; font-weight: 700; }
  .sample-tag { font-size: 12.5px; color: var(--text-faint); }
  .sample-text {
    font-size: 14px; color: var(--text-dim); line-height: 1.7;
    max-height: 112px; overflow: hidden; position: relative; margin-bottom: 18px;
  }
  .sample-text::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 34px;
    background: linear-gradient(transparent, var(--card));
  }
  .player { display: flex; align-items: center; gap: 12px; }
  .play-btn {
    width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, #f5a623, var(--accent-2)); color: #fff;
    border: none; cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: transform 0.2s, box-shadow 0.2s; box-shadow: 0 4px 14px rgba(232, 148, 10, 0.35);
  }
  .play-btn:hover { transform: scale(1.06); box-shadow: 0 6px 20px rgba(232, 148, 10, 0.45); }
  .play-btn svg { width: 18px; height: 18px; fill: currentColor; }
  .play-btn.playing svg { display: none; }
  .play-btn .pause-icon { display: none; }
  .play-btn.playing .pause-icon { display: block; }
  .progress-wrap { flex: 1; }
  .progress {
    width: 100%; height: 6px; border-radius: 100px; cursor: pointer;
    -webkit-appearance: none; appearance: none; background: var(--bg-soft); outline: none;
  }
  .progress::-webkit-slider-thumb {
    -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
    background: var(--accent-strong); cursor: pointer; margin-top: -4px;
    box-shadow: 0 2px 6px rgba(232, 148, 10, 0.4);
  }
  .progress::-webkit-slider-runnable-track { height: 6px; border-radius: 100px; background: var(--bg-soft); }
  .progress::-moz-range-thumb { width: 14px; height: 14px; border: none; border-radius: 50%; background: var(--accent-strong); }
  .progress::-moz-range-track { height: 6px; border-radius: 100px; background: var(--bg-soft); }
  .time { font-size: 12.5px; color: var(--text-faint); margin-top: 6px; text-align: right; }
  .sample-script {
    max-width: 860px; margin: 38px auto 0; padding: 24px 28px;
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: var(--radius); box-shadow: var(--shadow-sm);
  }
  .sample-script h4 { font-size: 14px; font-weight: 700; color: var(--accent-strong); margin-bottom: 10px; }
  .sample-script p { font-size: 14px; color: var(--text-dim); line-height: 1.75; }
  @media (max-width: 900px) { .samples-grid { grid-template-columns: 1fr; max-width: 520px; margin-left: auto; margin-right: auto; } }

  /* ---------- 界面展示 ---------- */
  .showcase-tabs { display: flex; justify-content: center; gap: 12px; margin-bottom: 36px; flex-wrap: wrap; }
  .stab {
    padding: 10px 22px; border-radius: 100px; font-size: 14.5px; font-weight: 600;
    color: var(--text-dim); background: var(--card); border: 1px solid var(--card-border);
    cursor: pointer; transition: all 0.25s; box-shadow: var(--shadow-sm);
  }
  .stab:hover { color: var(--accent-strong); border-color: rgba(232, 148, 10, 0.4); }
  .stab.active {
    color: #ffffff; background: linear-gradient(135deg, #f5a623, var(--accent-2));
    border-color: transparent; box-shadow: 0 4px 16px rgba(232, 148, 10, 0.35);
  }
  .browser {
    border-radius: 18px; overflow: hidden; border: 1px solid var(--card-border);
    background: var(--card); box-shadow: var(--shadow-lg);
    max-width: 1020px; margin: 0 auto;
  }
  .browser-bar {
    display: flex; align-items: center; gap: 8px;
    padding: 12px 18px; background: #f2f4f8; border-bottom: 1px solid var(--card-border);
  }
  .browser-bar .c { width: 12px; height: 12px; border-radius: 50%; }
  .browser-bar .c:nth-child(1) { background: #ff5f57; }
  .browser-bar .c:nth-child(2) { background: #febc2e; }
  .browser-bar .c:nth-child(3) { background: #28c840; }
  .browser-bar .url {
    margin-left: 14px; flex: 1; max-width: 340px; text-align: center;
    font-size: 12px; color: var(--text-faint); background: #ffffff;
    border: 1px solid var(--card-border);
    padding: 5px 14px; border-radius: 8px;
  }
  .shot { display: none; }
  .shot.active { display: block; animation: fadeIn 0.4s ease; }
  @keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
  .shot-cap { text-align: center; margin-top: 22px; color: var(--text-dim); font-size: 15px; min-height: 26px; }

  /* ---------- 使用场景 ---------- */
  .scenes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .scene {
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: var(--radius); padding: 30px 26px; transition: all 0.3s;
    box-shadow: var(--shadow-sm);
  }
  .scene:hover { transform: translateY(-5px); border-color: rgba(232, 148, 10, 0.4); box-shadow: var(--shadow-md); }
  .scene .emoji { font-size: 34px; margin-bottom: 16px; }
  .scene h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 8px; }
  .scene p { font-size: 14px; color: var(--text-dim); }

  /* ---------- 定价 ---------- */
  .plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; max-width: 980px; margin: 0 auto; }
  .plan {
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: 20px; padding: 38px 32px; text-align: center; position: relative;
    transition: all 0.3s; display: flex; flex-direction: column;
    box-shadow: var(--shadow-sm);
  }
  .plan:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
  .plan.hot {
    border-color: rgba(232, 148, 10, 0.5);
    background: linear-gradient(180deg, rgba(232, 148, 10, 0.07), var(--card) 45%);
    box-shadow: 0 20px 50px rgba(232, 148, 10, 0.15);
  }
  .plan .flag {
    position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
    padding: 4px 16px; border-radius: 100px; font-size: 12.5px; font-weight: 700;
    background: linear-gradient(135deg, #f5a623, var(--accent-2)); color: #ffffff;
  }
  .plan h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
  .plan .desc { font-size: 13.5px; color: var(--text-faint); margin-bottom: 24px; }
  .plan .price { font-size: 40px; font-weight: 800; color: var(--accent-strong); letter-spacing: -1px; }
  .plan .price small { font-size: 15px; font-weight: 600; color: var(--text-dim); }
  .plan .price .original {
    font-size: 18px; font-weight: 600; color: var(--text-faint);
    text-decoration: line-through; margin-right: 10px; vertical-align: middle;
  }
  .plan ul { list-style: none; margin: 26px 0 30px; text-align: left; flex: 1; }
  .plan li { display: flex; gap: 10px; font-size: 14.5px; color: var(--text-dim); padding: 7px 0; }
  .plan li::before { content: "✓"; color: var(--green); font-weight: 800; flex-shrink: 0; }
  .plan .btn { width: 100%; }
  .price-note { margin: 20px auto 0; text-align: center; font-size: 12.5px; color: var(--text-faint); }

  /* ---------- 限时优惠倒计时 ---------- */
  .countdown-bar {
    max-width: 980px; margin: 0 auto 32px; text-align: center;
    background: linear-gradient(135deg, #fff5eb, #ffede0);
    border: 1px solid rgba(232, 148, 10, 0.45);
    border-radius: 16px; padding: 18px 22px;
    box-shadow: 0 8px 26px rgba(232, 148, 10, 0.14);
    animation: pulseUrgency 2s ease-in-out infinite;
  }
  @keyframes pulseUrgency {
    0%, 100% { box-shadow: 0 8px 26px rgba(232, 148, 10, 0.14); transform: translateY(0); }
    50% { box-shadow: 0 12px 34px rgba(232, 148, 10, 0.24); transform: translateY(-2px); }
  }
  .countdown-bar .countdown-label {
    font-size: 15px; font-weight: 700; color: var(--accent-strong);
    margin-bottom: 12px; display: flex; align-items: center; justify-content: center; gap: 8px;
  }
  .countdown-bar .countdown-label::before {
    content: ""; width: 8px; height: 8px; border-radius: 50%;
    background: #ff4d4f; box-shadow: 0 0 0 0 rgba(255, 77, 79, 0.6);
    animation: blinkDot 1.2s infinite;
  }
  @keyframes blinkDot {
    0% { box-shadow: 0 0 0 0 rgba(255, 77, 79, 0.6); }
    70% { box-shadow: 0 0 0 8px rgba(255, 77, 79, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 77, 79, 0); }
  }
  .countdown-units { display: flex; justify-content: center; gap: 14px; }
  .countdown-unit {
    background: #ffffff; border: 1px solid rgba(232, 148, 10, 0.28);
    border-radius: 12px; padding: 10px 14px; min-width: 64px;
    box-shadow: var(--shadow-sm);
  }
  .countdown-unit b {
    display: block; font-size: 26px; font-weight: 800; color: var(--accent-strong); line-height: 1;
  }
  .countdown-unit span {
    display: block; font-size: 12px; color: var(--text-faint); margin-top: 4px;
  }
  .countdown-ended {
    font-size: 17px; font-weight: 700; color: #ff4d4f;
  }

  /* ---------- 下载区 ---------- */
  .dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; padding-top: 8px; }
  .dl-card {
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: 20px; padding: 36px 30px; text-align: center; transition: all 0.3s;
    position: relative; box-shadow: var(--shadow-sm); overflow: visible;
  }
  .dl-card:hover { transform: translateY(-5px); border-color: rgba(232, 148, 10, 0.4); box-shadow: var(--shadow-md); }
  .dl-card.mine { border-color: rgba(232, 148, 10, 0.55); box-shadow: 0 0 0 1px rgba(232, 148, 10, 0.3), var(--shadow-md); }
  .dl-card .mine-tag {
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    padding: 4px 16px; border-radius: 100px; font-size: 12px; font-weight: 700;
    background: var(--green); color: #ffffff; display: none;
    white-space: nowrap; box-shadow: 0 4px 12px rgba(13, 162, 113, 0.35);
    z-index: 10;
  }
  .dl-card.mine .mine-tag { display: block; }
  .dl-card .os-icon { width: 56px; height: 56px; margin: 0 auto 18px; display: flex; align-items: center; justify-content: center; }
  .dl-card .os-icon svg { width: 46px; height: 46px; fill: var(--text); }
  .dl-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
  .dl-card .meta { font-size: 13px; color: var(--text-faint); margin-bottom: 24px; }
  .sysreq {
    margin-top: 40px; text-align: center; font-size: 14.5px; color: var(--text-dim);
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: var(--radius); padding: 22px 30px; box-shadow: var(--shadow-sm);
  }
  .sysreq b { color: var(--text); }

  /* ---------- 授权弹窗 ---------- */
  .modal-overlay {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(15, 30, 60, 0.45);
    display: none; align-items: center; justify-content: center;
    padding: 24px; opacity: 0; transition: opacity 0.25s ease;
  }
  .modal-overlay.show { display: flex; }
  .modal-overlay.fade-in { opacity: 1; }
  .modal-card {
    background: var(--card); border-radius: 20px;
    max-width: 420px; width: 100%; text-align: center;
    box-shadow: var(--shadow-lg); overflow: hidden;
    transform: translateY(12px); transition: transform 0.25s ease;
  }
  .modal-overlay.fade-in .modal-card { transform: none; }
  .modal-card img {
    width: 100%; height: auto; display: block;
    border-bottom: 1px solid var(--card-border);
  }
  .modal-body { padding: 26px 28px 28px; }
  .modal-body p { font-size: 16px; color: var(--text); font-weight: 600; margin-bottom: 20px; }
  .modal-close {
    padding: 10px 28px; border-radius: 10px; font-size: 14.5px; font-weight: 600;
    background: var(--bg-soft); color: var(--text-dim); border: 1px solid var(--card-border);
    cursor: pointer; transition: all 0.2s;
  }
  .modal-close:hover { background: var(--accent-soft); color: var(--accent-strong); border-color: rgba(232, 148, 10, 0.4); }

  /* ---------- 售后 ---------- */
  .care {
    background: linear-gradient(135deg, rgba(232, 148, 10, 0.10), rgba(249, 115, 22, 0.05));
    border: 1px solid rgba(232, 148, 10, 0.28); border-radius: 24px;
    padding: 60px 56px; display: flex; align-items: center; gap: 48px; flex-wrap: wrap;
  }
  .care-text { flex: 1; min-width: 280px; }
  .care-text h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; margin-bottom: 14px; }
  .care-text p { color: var(--text-dim); font-size: 15.5px; }
  .care-items { display: flex; flex-direction: column; gap: 14px; flex: 1; min-width: 260px; }
  .care-item {
    display: flex; gap: 12px; align-items: center; font-size: 15px;
    background: rgba(255, 255, 255, 0.75); border: 1px solid var(--card-border);
    padding: 14px 20px; border-radius: 12px; box-shadow: var(--shadow-sm);
  }
  .care-item .tick { color: var(--green); font-weight: 800; font-size: 17px; }

  /* ---------- FAQ ---------- */
  .faq { max-width: 760px; margin: 0 auto; }
  details {
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: 14px; margin-bottom: 14px; overflow: hidden;
    box-shadow: var(--shadow-sm);
  }
  summary {
    padding: 20px 26px; font-size: 16px; font-weight: 600; cursor: pointer;
    list-style: none; display: flex; justify-content: space-between; align-items: center;
    transition: color 0.2s;
  }
  summary::-webkit-details-marker { display: none; }
  summary::after { content: "+"; font-size: 22px; color: var(--accent-strong); font-weight: 400; transition: transform 0.25s; }
  details[open] summary::after { transform: rotate(45deg); }
  summary:hover { color: var(--accent-strong); }
  details .a { padding: 0 26px 22px; color: var(--text-dim); font-size: 14.5px; }

  /* ---------- 页脚 ---------- */
  footer {
    border-top: 1px solid var(--card-border); padding: 44px 0;
    text-align: center; color: var(--text-faint); font-size: 13.5px;
    background: var(--card);
  }
  footer .brand { justify-content: center; margin-bottom: 12px; }

  /* ---------- 滚动显现 ---------- */
  .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
  .reveal.in { opacity: 1; transform: none; }

  /* ---------- 响应式 ---------- */
  @media (max-width: 900px) {
    .features { grid-template-columns: 1fr 1fr; }
    .feature:nth-child(n) { grid-column: span 1; }
    .feature:first-child { grid-column: span 2; }
    .scenes { grid-template-columns: 1fr 1fr; }
    .plans, .dl-grid { grid-template-columns: 1fr; max-width: 460px; margin-left: auto; margin-right: auto; }
    .nav-links { display: none; }
    .care { padding: 40px 30px; }
  }
  @media (max-width: 560px) {
    .nav-inner { gap: 10px; padding: 0 16px; }
    .brand { font-size: 17px; }
    .brand img { width: 28px; height: 28px; }
    .lang-switch { margin-left: auto; }
    nav .btn-sm { padding: 8px 12px; }
    .features, .scenes { grid-template-columns: 1fr; }
    .feature:first-child { grid-column: span 1; }
    .stat { min-width: 40%; padding: 20px 16px; }
    .hero { padding-top: 130px; }
  }