:root {
        /* A · 全浅色极简（苹果官网式）：整站只用雾白 / 浅灰 / 白三级浅色，
           深灰只出现在文字上，不再有任何深色大区块 */
        --bg: #fbfbfd;
        --bg-alt: #f5f5f7;
        --card: #ffffff;
        --card-alt: #f5f5f7;
        --ink: #1d1d1f;
        --ink-2: #6e6e73;
        --ink-3: #86868b;
        --line: #d2d2d7;
        --line-soft: #e8e8ed;
        --accent: #0066cc;
        --accent-bright: #0071e3;
        --accent-on-dark: #0066cc;
        --btn-hover: #0077ed;
        /* 旧深色变量保留同名、全部指向浅色值，任何残留引用也不会再翻黑 */
        --dark-bg: #f5f5f7;
        --dark-card: #ffffff;
        --dark-card-2: #f5f5f7;
        --dark-ink: #1d1d1f;
        --dark-ink-2: #6e6e73;
        --dark-line: #e8e8ed;
        --radius: 20px;
        --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "PingFang TC", "Noto Sans SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
      }
      /* 全浅色是本次定版方向：系统深色模式下也保持同一套浅色，不自动翻黑 */
      @media (prefers-color-scheme: dark) {
        :root {
          --bg: #fbfbfd;
          --bg-alt: #f5f5f7;
          --card: #ffffff;
          --card-alt: #f5f5f7;
          --ink: #1d1d1f;
          --ink-2: #6e6e73;
          --ink-3: #86868b;
          --line: #d2d2d7;
          --line-soft: #e8e8ed;
          --accent: #0066cc;
          --dark-bg: #f5f5f7;
          --dark-card: #ffffff;
          --dark-card-2: #f5f5f7;
        }
      }
      /* ---------- 平台切换：背景体系完全共用，只换强调蓝这一个小标记 ---------- */
      :root[data-plat="google"] {
        --accent: #1a73e8;
        --accent-bright: #1a73e8;
        --accent-on-dark: #1a73e8;
        --btn-hover: #1765cc;
      }
      /* 平台切换不再整页变色，只让强调色平缓过渡 */
      a, .btn, .plat-btn, .line-card .kind, .mode .num, .step .n, td.hl {
        transition: color .3s ease, background-color .3s ease, border-color .3s ease;
      }
      /* 谷歌四色：只作小面积标记（切换控件四色点） */
      .g-dots { display: flex; gap: 5px; margin-bottom: 10px; }
      .g-dots i { display: block; width: 7px; height: 7px; border-radius: 50%; }
      .g-dots i:nth-child(1) { background: #4285f4; }
      .g-dots i:nth-child(2) { background: #ea4335; }
      .g-dots i:nth-child(3) { background: #fbbc05; }
      .g-dots i:nth-child(4) { background: #34a853; }
      * { box-sizing: border-box; }
      html { scroll-behavior: smooth; }
      [id] { scroll-margin-top: 72px; }
      body {
        margin: 0;
        background: var(--bg);
        color: var(--ink);
        font-family: var(--sans);
        font-size: 17px;
        line-height: 1.6;
        letter-spacing: -0.01em;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
      }
      ::selection { background: var(--accent-bright); color: #fff; }
      .wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
      a { color: var(--accent); text-decoration: none; }
      a:hover { text-decoration: underline; }
      a:focus-visible, button:focus-visible, summary:focus-visible {
        outline: 2px solid var(--accent-bright); outline-offset: 3px; border-radius: 6px;
      }
      h1, h2, h3 { font-family: var(--sans); margin: 0; color: var(--ink); }
      p { margin: 0; }

      /* ---------- 极简导航（毛玻璃） ---------- */
      .topbar {
        position: sticky; top: 0; z-index: 50;
        background: color-mix(in srgb, var(--bg) 78%, transparent);
        -webkit-backdrop-filter: saturate(180%) blur(20px);
        backdrop-filter: saturate(180%) blur(20px);
        border-bottom: 1px solid var(--line-soft);
      }
      .topbar-in {
        display: flex; align-items: center; justify-content: space-between;
        gap: 16px; min-height: 52px; padding-top: 6px; padding-bottom: 6px;
      }
      .topbar nav { display: flex; gap: 34px; flex-wrap: wrap; }
      .topbar nav a { color: var(--ink); font-size: 13px; letter-spacing: 0; opacity: .85; }
      .topbar nav a:hover { color: var(--accent); text-decoration: none; opacity: 1; }
      .topbar .btn { padding: 7px 16px; font-size: 13px; }

      /* ---------- 按钮（Apple 药丸） ---------- */
      .btn {
        display: inline-flex; align-items: center; justify-content: center; gap: 8px;
        background: var(--accent-bright); color: #ffffff;
        font-weight: 400; font-size: 16px; line-height: 1.35;
        padding: 12px 24px; border-radius: 980px; border: 1px solid transparent; cursor: pointer;
        transition: background .2s ease, transform .2s ease;
        white-space: nowrap;
      }
      .btn:hover { background: var(--btn-hover); text-decoration: none; }
      .btn:active { transform: scale(.98); }
      .btn.ghost {
        background: transparent; color: var(--accent);
        border-color: var(--accent);
      }
      .btn.ghost:hover { background: var(--accent); color: #fff; }

      /* ---------- Hero ---------- */
      .hero { padding: 110px 0 90px; text-align: center; }
      .hero .wrap { max-width: 980px; }
      .hero .tag {
        display: block; font-size: 17px; font-weight: 600;
        color: var(--accent); margin-bottom: 18px; letter-spacing: 0;
      }
      .hero h1 {
        font-size: clamp(52px, 9vw, 88px); font-weight: 700;
        line-height: 1.06; letter-spacing: -0.02em;
      }
      .hero h1 .accent { color: var(--accent-bright); }
      .hero .sub {
        margin: 28px auto 0; font-size: clamp(18px, 2.6vw, 22px); line-height: 1.55;
        color: var(--ink-2); max-width: 760px; font-weight: 400;
      }
      .hero .sub strong { color: var(--ink); font-weight: 600; }
      .hero-cta { margin-top: 38px; display: flex; gap: 16px; flex-wrap: wrap; align-items: center; justify-content: center; }
      .hero-cta .note { font-size: 14px; color: var(--ink-3); flex-basis: 100%; margin-top: 6px; }
      .hero-media { margin: 60px auto 0; max-width: 1060px; }
      .hero-media img {
        display: block; width: 100%; height: auto;
        aspect-ratio: 16 / 8.4; object-fit: cover; object-position: 50% 46%;
        border-radius: 28px; box-shadow: 0 30px 80px rgba(0,0,0,.16);
      }
      .trustbar {
        margin-top: 72px; display: grid; gap: 0; text-align: left;
        grid-template-columns: repeat(3, 1fr);
        border-top: 1px solid var(--line-soft);
      }
      .trustbar div { padding: 28px 28px 0; }
      .trustbar div:first-child { padding-left: 4px; }
      .trustbar div + div { border-left: 1px solid var(--line-soft); }
      .trustbar b { display: block; font-size: 18px; font-weight: 600; margin-bottom: 6px; letter-spacing: -0.01em; }
      .trustbar span { font-size: 15px; color: var(--ink-2); line-height: 1.6; display: block; }

      /* ---------- 平台切换（分段卡片） ---------- */
      .plat-switch {
        display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
        margin: 64px auto 0; max-width: 820px; text-align: left;
        background: var(--bg-alt); border-radius: 24px; padding: 8px;
      }
      @media (prefers-color-scheme: dark) { .plat-switch { background: var(--bg-alt); } }
      .plat-btn {
        font-family: var(--sans); text-align: left; cursor: pointer;
        background: transparent; color: var(--ink);
        border: 0; border-radius: 18px;
        padding: 20px 22px; transition: background .2s ease, box-shadow .2s ease;
        letter-spacing: -0.01em;
      }
      .plat-btn b { display: block; font-size: 20px; font-weight: 600; margin-bottom: 5px; letter-spacing: -0.01em; }
      .plat-btn span { font-size: 14px; color: var(--ink-2); line-height: 1.55; display: block; }
      .plat-btn.on { background: var(--card); box-shadow: 0 4px 18px rgba(0,0,0,.08), 0 0 0 1px var(--line-soft); }
      .plat-btn.on b { color: var(--ink); }
      .plat-panel[hidden] { display: none !important; }
      .plat-hint { font-size: 14px; color: var(--ink-3); margin-top: 16px; text-align: center; }

      /* ---------- 区块节奏：雾白与浅灰交替，全程浅色 ---------- */
      section { padding: 110px 0; }
      #scenes { background: var(--bg-alt); }
      #compare { background: var(--bg-alt); color: var(--ink); }
      #appmodes { background: var(--bg); }
      #handover { background: var(--bg); }
      #flow { background: var(--bg-alt); }
      #honest { background: var(--bg-alt); color: var(--ink); }
      #faq { background: var(--bg); }
      .sec-head { margin: 0 auto 56px; max-width: 760px; text-align: center; }
      .sec-head h2 { font-size: clamp(34px, 5.2vw, 48px); font-weight: 700; line-height: 1.12; letter-spacing: -0.018em; }
      .sec-head p { margin-top: 16px; color: var(--ink-2); font-size: 18px; line-height: 1.6; }
      #compare .sec-head h2, #honest .sec-head h2 { color: var(--ink); }
      #compare .sec-head p, #honest .sec-head p { color: var(--ink-2); }
      #compare .sec-head p strong { color: var(--ink); }

      /* ---------- 场景卡片 ---------- */
      .scenes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
      .scene {
        background: var(--card); border: 0; border-radius: var(--radius);
        padding: 36px 38px; box-shadow: 0 4px 24px rgba(0,0,0,.045);
      }
      .scene h3 { font-size: 22px; font-weight: 600; letter-spacing: -0.012em; margin-bottom: 10px; }
      .scene p { font-size: 16px; color: var(--ink-2); line-height: 1.65; }
      .scene .go { margin-top: 16px; font-size: 16px; font-weight: 400; }
      .scene .go a:hover { text-decoration: underline; }

      /* ---------- 产品线卡片 ---------- */
      .card-media {
        margin: 0 0 26px; border-radius: 18px; overflow: hidden; background: var(--card-alt);
        aspect-ratio: 16 / 10;
      }
      .card-media img {
        display: block; width: 100%; height: 100%;
        aspect-ratio: auto; object-fit: cover; object-position: center;
      }
      .card-media.tone-dark img { filter: saturate(.92) contrast(.98) brightness(1.05); }
      .card-media.tone-bright img { filter: saturate(1.0) contrast(.98) brightness(.99); }
      .card-media img.pos-top { object-position: 50% 28%; }
      .line-card .kind .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 8px; vertical-align: 2px; }
      .line-card .kind .dot-blue { background: #4285f4; }
      .line-card .kind .dot-green { background: #34a853; }
      .lines { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
      .line-card {
        background: var(--card); border: 1px solid var(--line-soft);
        border-radius: 28px; padding: 42px 40px 38px;
        display: flex; flex-direction: column;
        box-shadow: 0 8px 32px rgba(0,0,0,.05);
      }
      #lines .line-card { background: var(--card); }
      .line-card .kind { font-size: 13px; font-weight: 600; letter-spacing: .06em; color: var(--accent); margin-bottom: 12px; }
      .line-card h3 { font-size: 30px; font-weight: 700; letter-spacing: -0.016em; line-height: 1.2; }
      .line-card .desc { margin-top: 12px; font-size: 16px; color: var(--ink-2); line-height: 1.65; min-height: 5.4em; }
      .line-card .spec { margin-top: auto; }
      .spec { margin: 26px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-soft); }
      .spec li {
        display: flex; justify-content: space-between; align-items: center; gap: 18px;
        padding: 0; min-height: 52px; box-sizing: border-box;
        border-bottom: 1px solid var(--line-soft); font-size: 15px; line-height: 1.35;
      }
      .spec li span:first-child { color: var(--ink-3); flex-shrink: 0; }
      .spec li span:last-child { text-align: right; font-weight: 500; max-width: 62%; }
      .price-row { margin-top: 26px; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
      .price-row .price { font-size: 28px; font-weight: 700; letter-spacing: -0.014em; }
      .price-row .why { font-size: 14px; color: var(--ink-3); }
      .line-card .btn { margin-top: 22px; align-self: flex-start; }

      .fee-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 22px; }
      .fee-card { background: var(--card-alt); border: 0; border-radius: var(--radius); padding: 30px 32px; }
      .fee-card b { font-size: 18px; font-weight: 600; display: block; margin-bottom: 8px; letter-spacing: -0.01em; }
      .fee-card p { font-size: 15px; color: var(--ink-2); line-height: 1.65; margin-top: 8px; }
      .fee-card .big { font-size: 26px; color: var(--ink); font-weight: 700; letter-spacing: -0.014em; }

      /* ---------- 表格 ---------- */
      .table-scroll { border: 0; border-radius: var(--radius); overflow: hidden; background: var(--card); box-shadow: 0 4px 24px rgba(0,0,0,.045); }
      table { border-collapse: collapse; width: 100%; font-size: 15px; }
      th, td { padding: 17px 22px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line-soft); line-height: 1.6; }
      thead th { background: var(--card-alt); font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
      tbody th { font-weight: 500; color: var(--ink-3); width: 20%; white-space: nowrap; }
      tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
      td.hl { color: var(--accent); font-weight: 600; }
      #compare .table-scroll { background: var(--card); box-shadow: 0 1px 3px rgba(0,0,0,.04); border: 1px solid var(--line-soft); }
      #compare thead th { background: var(--card-alt); color: var(--ink); }
      #compare th, #compare td { border-bottom-color: var(--line-soft); }
      #compare tbody th { color: var(--ink-3); }
      #compare td { color: var(--ink); }
      #compare td.hl { color: var(--accent); }

      /* ---------- 模式 / 提示块 ---------- */
      .modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
      .mode { background: var(--card); border: 0; border-radius: var(--radius); padding: 34px 32px 30px; box-shadow: 0 4px 24px rgba(0,0,0,.045); }
      .mode .num { font-size: 15px; color: var(--accent); font-weight: 600; letter-spacing: .04em; }
      .mode h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.012em; margin: 10px 0 10px; line-height: 1.35; }
      .mode p { font-size: 15px; color: var(--ink-2); line-height: 1.65; }
      .caveat {
        margin-top: 22px; background: var(--card-alt);
        border-radius: var(--radius); padding: 30px 34px; font-size: 15.5px; line-height: 1.7;
      }
      .caveat b { display: block; margin-bottom: 8px; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
      .caveat ul { margin: 8px 0 0; padding-left: 22px; }
      .caveat li { margin: 5px 0; }
      #compare .caveat { background: var(--card); color: var(--ink); border: 1px solid var(--line-soft); }
      #compare .caveat b { color: var(--ink); }
      #compare .caveat a { color: var(--accent); }
      .src { font-size: 13px; color: var(--ink-3); margin-top: 14px; display: block; overflow-wrap: anywhere; line-height: 1.6; }
      #compare .src, #honest .src { color: var(--ink-3); }
      #honest .src a { color: var(--accent); }

      /* ---------- 交接清单 ---------- */
      #handover .plat-panel > p { font-size: 20px !important; font-weight: 600 !important; letter-spacing: -0.012em; margin-bottom: 20px !important; }
      .check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 44px; }
      .check-item {
        display: flex; gap: 14px; padding: 17px 0;
        border-bottom: 1px solid var(--line-soft); font-size: 16px; font-weight: 500;
      }
      .check-item .mark {
        flex-shrink: 0; width: 24px; height: 24px; margin-top: 2px;
        background: var(--accent-bright); border: 0; border-radius: 50%;
        color: #fff; font-size: 13px; line-height: 24px; text-align: center; font-weight: 700;
      }
      .check-item small { display: block; color: var(--ink-3); font-size: 14px; font-weight: 400; margin-top: 2px; line-height: 1.55; }

      /* ---------- 步骤 ---------- */
      .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
      .step { background: var(--card); border-radius: var(--radius); padding: 30px 28px; box-shadow: 0 4px 24px rgba(0,0,0,.045); }
      .step .n { font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: .08em; }
      .step h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.012em; margin: 10px 0 8px; }
      .step p { font-size: 15px; color: var(--ink-2); line-height: 1.65; }

      /* ---------- 诚实边界（浅色卡片） ---------- */
      .honest { display: grid; gap: 0; border: 1px solid var(--line-soft); border-radius: 28px; overflow: hidden; background: var(--card); }
      .honest div.row { padding: 30px 36px; display: flex; gap: 18px; }
      .honest div.row + div.row { border-top: 1px solid var(--line-soft); }
      .honest .x {
        flex-shrink: 0; width: 26px; height: 26px; margin-top: 3px;
        border-radius: 50%; background: var(--card-alt); color: var(--ink-2);
        border: 1px solid var(--line-soft);
        font-size: 14px; line-height: 24px; text-align: center; font-weight: 700;
      }
      .honest b { display: block; font-size: 18px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 4px; color: var(--ink); }
      .honest p { font-size: 15.5px; color: var(--ink-2); line-height: 1.7; }
      .honest .plat-label { font-size: 12px; letter-spacing: .08em; color: var(--accent); font-weight: 600; display: block; margin-bottom: 6px; }

      /* ---------- FAQ ---------- */
      details { border-bottom: 1px solid var(--line-soft); }
      details:first-of-type { border-top: 1px solid var(--line-soft); }
      summary {
        cursor: pointer; list-style: none; padding: 24px 6px;
        font-size: 18px; font-weight: 600; font-family: var(--sans); letter-spacing: -0.01em;
        display: flex; justify-content: space-between; gap: 18px; align-items: center;
      }
      summary::-webkit-details-marker { display: none; }
      summary::after {
        content: "＋"; color: var(--accent); font-weight: 400; flex-shrink: 0;
        font-size: 20px; line-height: 1; transition: transform .25s ease;
      }
      details[open ] summary::after { transform: rotate(45deg); }
      details .a { padding: 0 6px 26px; color: var(--ink-2); font-size: 16px; line-height: 1.7; max-width: 780px; }
      .faq-sub { font-size: 24px; font-weight: 700; letter-spacing: -0.014em; margin: 48px 0 10px; }
      .faq-sub:first-of-type { margin-top: 8px; }

      /* ---------- 结尾 ---------- */
      .final { padding: 130px 0 120px; text-align: center; background: var(--bg-alt); }
      .final h2 { font-size: clamp(38px, 6vw, 56px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; color: var(--ink); }
      .final p { margin: 20px auto 0; color: var(--ink-2); font-size: 19px; max-width: 640px; line-height: 1.6; }
      .final .btn { margin-top: 36px; font-size: 17px; padding: 14px 32px; }
      footer { padding: 44px 0 52px; font-size: 13px; color: var(--ink-3); background: var(--bg-alt); border-top: 1px solid var(--line-soft); }
      .final + footer, main + footer { margin-top: 0; }
      footer .cols { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
      footer ul { margin: 0; padding: 0; list-style: none; }
      footer li { margin: 5px 0; }
      footer b { color: var(--ink-2); display: block; margin-bottom: 8px; font-size: 13px; font-weight: 600; }
      footer a { color: var(--ink-2); }

      /* ---------- A · 全浅色极简收尾：苹果官网式留白与发丝线 ---------- */
      /* 品牌字标 */
      .brand { display: inline-flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 700; letter-spacing: .02em; color: var(--ink); white-space: nowrap; }
      .brand-logo { display: block; width: 32px; height: 32px; border-radius: 9px; flex-shrink: 0; box-shadow: 0 1px 4px rgba(0,0,0,.18); }
      .brand:hover { text-decoration: none; color: var(--ink); }
      .brand small { font-size: 11px; font-weight: 500; color: var(--ink-3); letter-spacing: .14em; margin-left: 9px; }
      .topbar-in { gap: 28px; }
      .topbar nav { margin-right: auto; }
      .topbar { background: rgba(251,251,253,.82); }

      /* 按钮：苹果蓝药丸，几乎无阴影，靠颜色本身成立 */
      .btn { box-shadow: none; letter-spacing: .01em; }

      /* 首屏：雾白平底、大字、大量留白——和苹果官网产品页同一逻辑 */
      .hero {
        position: relative; overflow: hidden;
        background: var(--bg); color: var(--ink);
        padding: 118px 0 96px;
      }
      .hero .wrap { position: relative; }
      .hero .tag { color: var(--accent); font-size: 15px; letter-spacing: .04em; font-weight: 600; }
      .hero h1 { color: var(--ink); font-size: clamp(54px, 9.4vw, 96px); }
      .hero h1 .accent { color: var(--accent); }
      .hero .sub { color: var(--ink-2); }
      .hero .sub strong { color: var(--ink); }
      .hero-cta .note { color: var(--ink-3); }
      .hero .btn.ghost { color: var(--accent); border-color: var(--accent); box-shadow: none; background: transparent; }
      .hero .btn.ghost:hover { background: var(--accent); color: #fff; }
      .hero-media img {
        border: 1px solid var(--line-soft);
        box-shadow: 0 12px 40px rgba(0,0,0,.07);
        filter: none;
      }
      /* 首屏内的平台切换与信任条：浅灰槽 + 白色选中卡，和正文同一体系 */
      .hero .plat-switch { background: var(--bg-alt); box-shadow: none; }
      .hero .plat-btn { color: var(--ink); }
      .hero .plat-btn span { color: var(--ink-2); }
      .hero .plat-btn.on { background: var(--card); box-shadow: 0 1px 4px rgba(0,0,0,.06), 0 0 0 1px var(--line-soft); }
      .hero .plat-btn.on b { color: var(--ink); }
      .hero .plat-hint { color: var(--ink-3); }
      .hero .trustbar { border-top-color: var(--line-soft); }
      .hero .trustbar div + div { border-left-color: var(--line-soft); }
      .hero .trustbar b { color: var(--ink); }
      .hero .trustbar span { color: var(--ink-2); }

      /* 结尾 CTA 与首屏呼应：同一片浅灰，双平台一致 */
      .final { background: var(--bg-alt); }
      .final h2 { color: var(--ink); }
      .final p { color: var(--ink-2); }

      /* 卡片质感：白卡 + 发丝描边 + 极浅投影，不靠阴影撑层级 */
      .scene, .mode, .step { border: 1px solid var(--line-soft); box-shadow: none; }
      .line-card { box-shadow: none; border-color: var(--line-soft); }
      .fee-card { border: 1px solid var(--line-soft); background: var(--card); }
      #scenes .scene, #flow .step { background: var(--card); }
      .sec-head h2 { letter-spacing: -0.022em; }
      /* 产品图不再分深 / 亮两套滤镜，统一中性呈现，靠浅色卡片边框承载 */
      .card-media.tone-dark img, .card-media.tone-bright img { filter: none; }
      .card-media { border: 1px solid var(--line-soft); }

      /* ---------- 滚动节奏 ---------- */
      .reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.22,.61,.36,1), transform .8s cubic-bezier(.22,.61,.36,1); }
      .reveal.in { opacity: 1; transform: none; }
      @media (prefers-reduced-motion: reduce) {
        html { scroll-behavior: auto; }
        .reveal { opacity: 1; transform: none; transition: none; }
        * { transition: none !important; }
      }

      /* ---------- 移动端 ---------- */
      @media (max-width: 868px) {
        .topbar-in { flex-wrap: wrap; justify-content: space-between; row-gap: 0; }
        .topbar nav {
          display: flex; order: 3; flex-basis: 100%;
          gap: 8px 16px; padding: 2px 0 8px;
          overflow-x: auto; -webkit-overflow-scrolling: touch;
        }
        .topbar nav a { white-space: nowrap; }
        .hero { padding: 64px 0 56px; }
        .hero h1 { font-size: clamp(40px, 12vw, 56px); }
        .hero-media { margin-top: 44px; }
        .hero-media img { aspect-ratio: 4 / 3.1; border-radius: 20px; object-position: 30% 50%; }
        section { padding: 72px 0; }
        .final { padding: 84px 0 76px; }
        .sec-head { margin-bottom: 40px; text-align: left; }
        .sec-head h2 { font-size: 32px; }
        .hero .sec-head, .final .sec-head { text-align: center; }
        .trustbar { grid-template-columns: 1fr; margin-top: 52px; }
        .trustbar div { padding: 22px 4px 0; }
        .trustbar div + div { border-left: 0; }
        .plat-switch { grid-template-columns: 1fr; margin-top: 44px; }
        .scenes, .lines, .modes, .check-grid, .fee-compare { grid-template-columns: 1fr; }
        .steps { grid-template-columns: 1fr; }
        .scene, .line-card { padding: 30px 26px; }
        .caveat { padding: 26px 24px; }
        .honest div.row { padding: 24px 22px; }
        .hero-cta .btn { width: 100%; }
        .line-card .btn { align-self: stretch; }
        table, tbody, tr, th, td { display: block; width: 100%; }
        thead { display: none; }
        tbody tr { padding: 14px 0; border-bottom: 1px solid var(--line-soft); }
        #compare tbody tr { border-bottom-color: var(--dark-line); }
        tbody tr:last-child { border-bottom: 0; }
        tbody th { border-bottom: 0; padding: 8px 22px 4px; white-space: normal; font-size: 14px; }
        td { border-bottom: 0; padding: 5px 22px; }
        td::before { content: attr(data-l); color: var(--ink-3); font-size: 13px; display: block; margin-bottom: 1px; }
        #compare td::before { color: var(--dark-ink-2); }
      }

      /* ---------- 多页站追加：子页页头 / 堆叠平台小标题 / 选号页 ---------- */
      .page-head { padding: 84px 0 30px; }
      .page-head h1 { font-size: clamp(34px, 5.6vw, 52px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.14; color: var(--ink); }
      .page-head .sub { margin-top: 16px; color: var(--ink-2); font-size: 18px; line-height: 1.65; max-width: 760px; }
      .page-head .hero-cta { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
      .stack-label { font-size: 24px; font-weight: 700; letter-spacing: -0.014em; margin: 44px 0 18px; }
      .stack-label:first-of-type { margin-top: 6px; }
      .topbar nav a.cur { color: var(--ink); font-weight: 700; }
      /* ---------- 选号页 ---------- */
      .ico { width: 16px; height: 16px; flex-shrink: 0; display: inline-block; vertical-align: middle; }
      .pick-note { margin-bottom: 26px; }

      .pick-panel {
        background: var(--card); border: 1px solid var(--line-soft); border-radius: 24px;
        padding: 8px 26px 14px; box-shadow: 0 6px 24px rgba(0,0,0,.04);
      }
      .pick-panel-head {
        display: flex; align-items: center; gap: 10px;
        padding: 14px 0 12px; border-bottom: 1px solid var(--line-soft); margin-bottom: 6px;
      }
      .pick-panel-head .ico { width: 18px; height: 18px; color: var(--accent); }
      .pick-panel-head b { font-size: 16px; font-weight: 700; }
      .pick-reset {
        margin-left: auto; appearance: none; border: 0; background: transparent; cursor: pointer;
        font: inherit; font-size: 14px; color: var(--accent); padding: 6px 4px;
      }
      .pick-reset:hover { text-decoration: underline; }
      .pick-row { display: flex; align-items: center; gap: 14px; padding: 9px 0; }
      .pick-row + .pick-row { border-top: 1px dashed var(--line-soft); }
      .pick-row .lab {
        width: 78px; flex-shrink: 0; display: inline-flex; align-items: center; gap: 8px;
        color: var(--ink-2); font-size: 14px; font-weight: 600;
      }
      .pick-row .lab .ico { color: var(--ink-3); }
      .chips { display: flex; flex-wrap: wrap; gap: 8px; }
      .chip {
        appearance: none; display: inline-flex; align-items: center; gap: 6px;
        border: 1px solid var(--line); background: var(--card); color: var(--ink-2);
        border-radius: 999px; padding: 7px 15px; font-size: 14px; line-height: 1.2;
        cursor: pointer; font-family: inherit; transition: all .18s ease;
      }
      .chip .ico { width: 14px; height: 14px; }
      .chip:hover { border-color: var(--accent); color: var(--accent); }
      .chip.on { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; box-shadow: 0 4px 12px rgba(0,113,227,.22); }

      .pick-count { display: flex; align-items: center; gap: 8px; color: var(--ink-3); font-size: 14px; margin: 22px 0 18px; }
      .pick-count b { color: var(--ink); font-size: 16px; }

      .pick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
      .pick-card {
        position: relative; display: flex; flex-direction: column;
        background: var(--card); border: 1px solid var(--line-soft); border-radius: 22px;
        overflow: hidden; box-shadow: 0 4px 18px rgba(0,0,0,.04);
        transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      }
      .pick-card[hidden] { display: none; }
      .pick-card:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(0,0,0,.09); border-color: var(--line); }
      .pick-card.is-booked { opacity: .78; }

      .pick-head { display: flex; align-items: center; gap: 14px; padding: 20px 22px 16px; }
      .pick-card.apple .pick-head { background: linear-gradient(135deg, #f5f5f7 0%, #ffffff 80%); }
      .pick-card.google .pick-head { background: linear-gradient(135deg, #e8f0fe 0%, #ffffff 80%); }
      .pick-plat {
        width: 46px; height: 46px; border-radius: 14px; flex-shrink: 0;
        display: grid; place-items: center;
      }
      .pick-plat .ico { width: 24px; height: 24px; }
      .pick-card.apple .pick-plat { background: #1d1d1f; color: #fff; box-shadow: 0 6px 14px rgba(0,0,0,.18); }
      .pick-card.google .pick-plat { background: #fff; color: #1a73e8; box-shadow: 0 6px 14px rgba(26,115,232,.18), inset 0 0 0 1px #d2e3fc; }
      .pick-title { display: flex; flex-direction: column; min-width: 0; }
      .pick-id { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; line-height: 1.2; }
      .pick-sub { font-size: 12.5px; color: var(--ink-3); margin-top: 2px; }
      .pick-badge {
        margin-left: auto; align-self: flex-start; flex-shrink: 0;
        display: inline-flex; align-items: center; gap: 6px;
        font-size: 12px; font-weight: 600; padding: 5px 11px; border-radius: 999px;
        background: #e6f4ea; color: #137333;
      }
      .pick-badge i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 3px rgba(19,115,51,.15); }
      .pick-badge.booked { background: #fef3e2; color: #b06000; }
      .pick-badge.booked i { box-shadow: 0 0 0 3px rgba(176,96,0,.15); }

      .pick-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 22px; }
      .tag-chip {
        display: inline-flex; align-items: center; gap: 5px;
        font-size: 12.5px; font-weight: 600; padding: 4px 10px; border-radius: 8px;
        background: var(--bg-alt); color: var(--ink-2);
      }
      .tag-chip .ico { width: 13px; height: 13px; }
      .tag-chip.t-new { background: #e8f0fe; color: #1a5fc8; }
      .tag-chip.t-old { background: #f3e8fd; color: #7b3fbf; }
      .tag-chip.t-demo { background: transparent; color: var(--ink-3); border: 1px dashed var(--line); font-weight: 500; }

      .pick-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 16px 22px 4px; }
      .stat {
        display: grid; grid-template-columns: 30px 1fr; grid-template-rows: auto auto;
        column-gap: 10px; align-items: center;
        background: var(--bg-alt); border-radius: 14px; padding: 11px 12px;
      }
      .stat .ico {
        grid-row: 1 / 3; width: 30px; height: 30px; padding: 7px; box-sizing: border-box;
        border-radius: 9px; background: #fff; color: var(--accent);
        box-shadow: 0 1px 3px rgba(0,0,0,.06);
      }
      .stat .k { font-size: 12px; color: var(--ink-3); line-height: 1.3; }
      .stat b { font-size: 14.5px; font-weight: 700; color: var(--ink); line-height: 1.35; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
      .stat b.ok { color: #137333; }
      .stat b.warn { color: #b06000; }

      .pick-foot { margin-top: auto; padding: 16px 22px 20px; }
      .pick-price {
        display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
        padding-top: 14px; border-top: 1px solid var(--line-soft);
      }
      .pick-price .p { font-size: 18px; font-weight: 700; }
      .pick-price .w { color: var(--ink-3); font-size: 12.5px; text-align: right; }
      .pick-actions { display: flex; gap: 10px; margin-top: 14px; }
      .pick-actions .btn { flex: 1; padding: 10px 14px; font-size: 14.5px; gap: 7px; }
      .pick-actions .btn .ico { width: 16px; height: 16px; }
      .pick-actions .btn.copied { background: #e6f4ea; border-color: #137333; color: #137333; }

      .pick-empty {
        display: none; text-align: center; color: var(--ink-2);
        padding: 48px 20px; font-size: 15px; line-height: 1.7;
        background: var(--card); border: 1px dashed var(--line); border-radius: 22px;
      }
      .pick-empty.show { display: block; }
      .pick-empty .ico.big { width: 40px; height: 40px; color: var(--ink-3); margin-bottom: 10px; }

      @media (max-width: 760px) {
        .pick-panel { padding: 6px 18px 12px; }
        .pick-row { flex-direction: column; align-items: flex-start; gap: 8px; }
        .pick-row .lab { width: auto; }
        .pick-grid { grid-template-columns: 1fr; }
      }

      /* 首页改为分页入口：首屏收短，导航放下 9 个页面 */
      .topbar nav { gap: 16px; }
      .hero.compact { padding: 56px 0 12px; }
      .hero.compact h1 { font-size: clamp(36px, 5.4vw, 60px); }
      section.tight { padding: 28px 0 72px; }
      .page-head + section.tight { padding-top: 8px; }

      /* SEO：首页 h1 放关键词、标语保持原视觉；子页面包屑；WebP 图片外层 */
      .hero h1.tag { font-size: 15px; line-height: 1.5; letter-spacing: .04em; font-weight: 600; color: var(--accent); margin-bottom: 18px; }
      .hero .slogan { font-size: clamp(36px, 5.4vw, 60px); font-weight: 700; line-height: 1.06; letter-spacing: -0.02em; color: var(--ink); }
      .hero .slogan .accent { color: var(--accent); }
      .crumbs { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; font-size: 13px; color: var(--ink-3); }
      .crumbs a { color: var(--ink-2); text-decoration: none; }
      .crumbs a:hover { color: var(--accent); }
      .card-media picture { display: block; height: 100%; }

      /* ---------- 顶栏：悬浮毛玻璃胶囊 + 气泡导航 ---------- */
      body::before {
        content: ""; position: absolute; left: 0; right: 0; top: 0; height: 520px; z-index: -1; pointer-events: none;
        background:
          radial-gradient(520px 260px at 12% -40px, rgba(0,113,227,.10), transparent 70%),
          radial-gradient(480px 240px at 88% -60px, rgba(175,82,222,.08), transparent 70%);
      }
      [id] { scroll-margin-top: 88px; }
      .hero { background: transparent; }
      .topbar {
        background: transparent; border-bottom: 0;
        -webkit-backdrop-filter: none; backdrop-filter: none;
        padding: 10px 12px 0; pointer-events: none;
      }
      .topbar-in.wrap {
        pointer-events: auto; max-width: 1096px;
        min-height: 54px; padding: 6px 6px 6px 10px; gap: 16px;
        border-radius: 999px;
        background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.56));
        -webkit-backdrop-filter: blur(24px) saturate(180%);
        backdrop-filter: blur(24px) saturate(180%);
        border: 1px solid rgba(255,255,255,.75);
        box-shadow:
          inset 0 1px 0 rgba(255,255,255,.95),
          inset 0 -1px 0 rgba(0,0,0,.03),
          0 0 0 .5px rgba(0,0,0,.07),
          0 2px 6px rgba(17,24,39,.04),
          0 12px 32px rgba(17,24,39,.08);
      }
      .topbar .brand-logo { width: 34px; height: 34px; border-radius: 10px; }
      .topbar nav {
        gap: 2px; padding: 3px; margin-right: auto;
        border-radius: 999px;
        background: rgba(118,118,128,.09);
        box-shadow: inset 0 1px 2px rgba(0,0,0,.05);
      }
      .topbar nav a {
        padding: 6px 12px; border-radius: 999px;
        font-size: 13px; line-height: 1.35; color: var(--ink-2); opacity: 1;
        transition: background .2s ease, color .2s ease, box-shadow .2s ease;
      }
      .topbar nav a:hover { background: rgba(255,255,255,.7); color: var(--ink); }
      .topbar nav a.cur {
        background: #fff; color: var(--ink); font-weight: 600;
        box-shadow: 0 1px 2px rgba(0,0,0,.06), 0 3px 10px rgba(0,0,0,.08), inset 0 0 0 .5px rgba(0,0,0,.04);
      }
      .topbar .btn {
        padding: 9px 18px; font-size: 13px; font-weight: 500; border: 0;
        background: linear-gradient(180deg, color-mix(in srgb, var(--accent-bright) 78%, #fff), var(--accent-bright));
        box-shadow: inset 0 1px 0 rgba(255,255,255,.4), 0 1px 2px rgba(0,0,0,.08), 0 6px 16px color-mix(in srgb, var(--accent-bright) 32%, transparent);
      }
      .topbar .btn:hover { filter: brightness(1.06); }
      @media (max-width: 1060px) {
        .topbar .brand small { display: none; }
        .topbar nav a { padding: 6px 9px; }
      }
      @media (max-width: 868px) {
        .topbar { padding: 8px 8px 0; }
        .topbar-in.wrap { border-radius: 24px; padding: 8px 8px 8px 12px; row-gap: 8px; }
        .topbar nav {
          flex-wrap: nowrap; gap: 2px; padding: 3px;
          scrollbar-width: none;
        }
        .topbar nav::-webkit-scrollbar { display: none; }
        .topbar nav a { padding: 6px 12px; }
      }
      .topbar nav a { font-size: 14.5px; padding: 7px 13px; }
      .topbar .btn { font-size: 14.5px; padding: 10px 20px; }
      .topbar .brand { font-size: 17.5px; }
      .topbar .brand small { font-size: 11.5px; }
      .topbar-in.wrap { min-height: 58px; }
      @media (max-width: 1060px) { .topbar nav a { padding: 7px 10px; } }
      @media (max-width: 868px) { .topbar nav a { padding: 7px 13px; } }
      footer .legal { margin-top: 28px; font-size: 12px; line-height: 1.7; color: var(--ink-3); }
      footer .legal::before { content: ""; display: block; border-top: 1px solid var(--line-soft); margin-bottom: 18px; }

      /* ---------- 选号页：实时库存 ---------- */
      .pick-live {
        display: flex; gap: 14px; align-items: flex-start; margin-bottom: 18px;
        background: #e6f4ea; color: #0d652d; border-radius: 18px; padding: 16px 20px;
      }
      .pick-live > .ico { width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px; }
      .pick-live p { display: flex; flex-direction: column; gap: 2px; font-size: 14px; line-height: 1.6; }
      .pick-live b { font-size: 16px; color: #0d652d; }
      .pick-live span span { font-weight: 600; }
      .pick-search {
        flex: 1; width: 100%; max-width: 460px; font: inherit; font-size: 15px;
        padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); outline: none;
      }
      .pick-search:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0,113,227,.12); }
      .pick-select {
        font: inherit; font-size: 14px; color: var(--ink-2); border: 1px solid var(--line); background: var(--card);
        border-radius: 999px; padding: 7px 12px; cursor: pointer;
      }
      .chip em { font-style: normal; font-size: 12px; color: var(--ink-3); font-weight: 500; }
      .chip em:empty { display: none; }
      .chip.on em { color: rgba(255,255,255,.85); }
      .chip.zero:not(.on) { opacity: .45; }
      .tag-chip.t-ok { background: #e6f4ea; color: #137333; }
      .pick-feats {
        display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px;
        padding: 12px 22px 0; font-size: 12.5px; color: var(--ink-3);
      }
      .pick-feats em { font-style: normal; display: inline-flex; align-items: center; gap: 4px; color: var(--ink-2); font-weight: 600; }
      .pick-feats .ico { width: 14px; height: 14px; color: var(--accent); }
      .pick-more { text-align: center; margin-top: 28px; }
      .pick-more .btn { min-width: 240px; }
      .pick-more [hidden], .pick-more .btn[hidden] { display: none; }
      .pick-noscript { margin-top: 16px; color: var(--ink-2); }
      @media (max-width: 760px) { .pick-search { max-width: none; } }
      .pick-row .lab { width: 92px; white-space: nowrap; }
      .pick-toggle { display: none; }
      @media (max-width: 760px) {
        .pick-panel:not(.expanded) .pick-row.adv { display: none; }
        .pick-toggle {
          display: block; width: 100%; margin-top: 8px; padding: 11px 14px; border-radius: 14px;
          border: 1px dashed var(--line); background: var(--bg-alt); color: var(--accent);
          font: inherit; font-size: 14px; cursor: pointer;
        }
      }

      /* ================= UI v2 ================= */
      #flow, #honest, #compare, #scenes, #faq, #appmodes, #handover { background: transparent; }
      .page-head .hero-cta { justify-content: flex-start; }

      /* 首页首屏 */
      .home-hero { padding: 64px 0 8px; }
      .home-hero .hero-cta { margin-top: 30px; }
      .home-hero .hero-cta .btn .ico { width: 18px; height: 18px; }
      .hero-stats {
        display: grid; grid-template-columns: repeat(4, 1fr); max-width: 780px; margin: 42px auto 0;
        background: rgba(255,255,255,.72); border: 1px solid var(--line-soft); border-radius: 22px;
        -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
        box-shadow: 0 10px 30px rgba(17,24,39,.05);
      }
      .hero-stats[hidden], .hero-sync[hidden], .home-latest[hidden] { display: none; }
      .hero-stats div { padding: 18px 12px; display: flex; flex-direction: column; gap: 2px; }
      .hero-stats div + div { border-left: 1px solid var(--line-soft); }
      .hero-stats b { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); line-height: 1.15; font-variant-numeric: tabular-nums; }
      .hero-stats span { font-size: 13px; color: var(--ink-3); }
      .hero-sync { margin-top: 14px; font-size: 13px; color: var(--ink-3); display: inline-flex; align-items: center; gap: 8px; }
      .hero-sync i { width: 8px; height: 8px; border-radius: 50%; background: #34c759; box-shadow: 0 0 0 4px rgba(52,199,89,.18); animation: dbh-pulse 2s ease-in-out infinite; }
      @keyframes dbh-pulse { 50% { box-shadow: 0 0 0 7px rgba(52,199,89,.04); } }

      /* 平台大卡 */
      .plat-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
      .plat-card { border-radius: 28px; padding: 34px 34px 30px; display: flex; flex-direction: column; gap: 14px; }
      .plat-card.apple { background: #1d1d1f; color: #f5f5f7; }
      .plat-card.google { background: linear-gradient(160deg, #eaf2ff 0%, #f8fbff 65%); border: 1px solid #d6e4fb; }
      .plat-ico { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; }
      .plat-ico .ico { width: 28px; height: 28px; }
      .plat-card.apple .plat-ico { background: rgba(255,255,255,.1); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.12); }
      .plat-card.google .plat-ico { background: #fff; color: #1a73e8; box-shadow: 0 6px 16px rgba(26,115,232,.15); }
      .plat-card h2 { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; }
      .plat-card.apple h2 { color: #fff; }
      .plat-card p { font-size: 15.5px; line-height: 1.65; color: var(--ink-2); max-width: 470px; }
      .plat-card.apple p { color: #a1a1a6; }
      .plat-facts { list-style: none; margin: 6px 0 0; padding: 0; display: flex; border-radius: 18px; overflow: hidden; }
      .plat-facts li { flex: 1; padding: 12px 16px; display: flex; flex-direction: column; }
      .plat-facts li + li { border-left: 1px solid rgba(127,127,127,.18); }
      .plat-card.apple .plat-facts { background: rgba(255,255,255,.06); }
      .plat-card.google .plat-facts { background: rgba(255,255,255,.8); }
      .plat-facts b { font-size: 22px; font-weight: 700; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
      .plat-card.apple .plat-facts b { color: #fff; }
      .plat-facts span { font-size: 12.5px; color: var(--ink-3); }
      .plat-acts { display: flex; gap: 10px; margin-top: auto; padding-top: 8px; flex-wrap: wrap; }
      .plat-acts .btn { padding: 11px 22px; font-size: 15px; }
      .plat-card.apple .btn { background: #fff; color: #1d1d1f; }
      .plat-card.apple .btn:hover { background: #e8e8ed; }
      .plat-card.apple .btn.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
      .plat-card.apple .btn.ghost:hover { background: rgba(255,255,255,.1); }
      .plat-card.google .btn { background: #1a73e8; color: #fff; }
      .plat-card.google .btn:hover { background: #1765cc; }
      .plat-card.google .btn.ghost { background: transparent; color: #1a73e8; border-color: #1a73e8; }
      .plat-card.google .btn.ghost:hover { background: #1a73e8; color: #fff; }

      /* 区块标题行 */
      .sec-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; margin-bottom: 22px; }
      .sec-row h2 { font-size: clamp(26px, 3.2vw, 34px); font-weight: 700; letter-spacing: -0.02em; }
      .sec-row p { margin-top: 6px; color: var(--ink-2); font-size: 15.5px; }
      .link-more { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 600; white-space: nowrap; }
      .link-more .ico { width: 16px; height: 16px; transition: transform .2s ease; }
      .link-more:hover { text-decoration: none; }
      .link-more:hover .ico { transform: translateX(3px); }

      /* 服务承诺 */
      .promise { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--card); border: 1px solid var(--line-soft); border-radius: 24px; }
      .promise > div { padding: 26px 24px; }
      .promise > div + div { border-left: 1px solid var(--line-soft); }
      .pi { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: #e8f0fe; color: var(--accent); margin-bottom: 14px; }
      .pi .ico { width: 20px; height: 20px; }
      .promise b { display: block; font-size: 16px; font-weight: 700; margin-bottom: 4px; }
      .promise p { font-size: 14px; color: var(--ink-2); line-height: 1.6; }

      /* 图标入口方块 */
      .tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
      .tiles:has(> .tile:nth-child(4):last-child) { grid-template-columns: repeat(2, 1fr); }
      .tile {
        display: flex; align-items: center; gap: 16px; padding: 20px 22px; color: var(--ink);
        background: var(--card); border: 1px solid var(--line-soft); border-radius: 20px;
        transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      }
      .tile:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--line); box-shadow: 0 12px 28px rgba(0,0,0,.07); }
      .tile-ico { width: 46px; height: 46px; flex-shrink: 0; border-radius: 14px; display: grid; place-items: center; background: var(--bg-alt); color: var(--ink); transition: background .2s ease, color .2s ease; }
      .tile-ico .ico { width: 22px; height: 22px; }
      .tile:hover .tile-ico { background: var(--accent); color: #fff; }
      .tile-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; flex: 1; }
      .tile-body b { font-size: 16.5px; font-weight: 700; }
      .tile-body span { font-size: 13.5px; color: var(--ink-2); line-height: 1.5; }
      .tile > .ico { width: 18px; height: 18px; color: var(--ink-3); flex-shrink: 0; transition: transform .2s ease, color .2s ease; }
      .tile:hover > .ico { color: var(--accent); transform: translateX(3px); }

      /* 结尾深色卡 */
      .final-wrap { padding: 24px 0 88px; }
      .final-card { position: relative; overflow: hidden; background: #1d1d1f; color: #f5f5f7; border-radius: 32px; padding: 72px 40px; text-align: center; }
      .final-card::before {
        content: ""; position: absolute; left: 50%; top: -60%; width: 900px; height: 600px; transform: translateX(-50%);
        background: radial-gradient(closest-side, rgba(0,113,227,.38), transparent 72%); pointer-events: none;
      }
      .final-card > * { position: relative; }
      .final-card h2 { color: #fff; font-size: clamp(30px, 4.6vw, 46px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.12; }
      .final-card p { margin: 16px auto 0; color: #a1a1a6; font-size: 17px; max-width: 600px; line-height: 1.65; }
      .final-card .btn { margin-top: 30px; padding: 14px 30px; font-size: 16.5px; background: #fff; color: #1d1d1f; gap: 8px; }
      .final-card .btn:hover { background: #e8e8ed; }
      .final-card .btn .ico { width: 18px; height: 18px; }

      /* 苹果 / 谷歌页：费用卡 + 定价说明并排 */
      .fee-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: 20px; margin-top: 22px; }
      .fee-row .fee-compare { margin-top: 0; grid-template-columns: 1fr; }
      .fee-row .fee-card { height: 100%; display: flex; flex-direction: column; justify-content: center; }
      .fee-row .caveat { margin-top: 0; background: var(--card); border: 1px solid var(--line-soft); }

      /* 成交步骤 */
      .steps { counter-reset: dbh-step; }
      .step { position: relative; padding-top: 28px; }
      .step::before {
        counter-increment: dbh-step; content: counter(dbh-step); position: absolute; right: 22px; top: 12px;
        font-size: 64px; font-weight: 800; line-height: 1; color: var(--bg-alt); letter-spacing: -0.04em;
      }
      .step > * { position: relative; }
      .step .n { display: inline-block; background: #e8f0fe; color: var(--accent); padding: 5px 12px; border-radius: 999px; font-size: 12px; }
      .step:not(:last-child)::after {
        content: ""; position: absolute; top: 50%; right: -16px; width: 9px; height: 9px; z-index: 1;
        border-top: 2px solid var(--line); border-right: 2px solid var(--line); transform: translateY(-50%) rotate(45deg);
      }

      /* 常见问题分组卡 */
      .faq-group { background: var(--card); border: 1px solid var(--line-soft); border-radius: 24px; padding: 6px 8px 8px; margin-bottom: 20px; }
      .faq-group .stack-label { margin: 0; padding: 18px 18px 8px; font-size: 13px; letter-spacing: .08em; color: var(--accent); font-weight: 700; }
      .faq-group details { border: 0; border-radius: 16px; transition: background .2s ease; }
      .faq-group details:first-of-type { border-top: 0; }
      .faq-group details + details { margin-top: 2px; }
      .faq-group details:hover { background: var(--bg-alt); }
      .faq-group details[open] { background: var(--bg-alt); }
      .faq-group summary { padding: 16px 18px; font-size: 17px; }
      .faq-group details .a { padding: 0 18px 20px; font-size: 15.5px; }

      /* 做不到的事：红色叉号 */
      .honest .x { background: #fdecea; color: #d93025; border-color: #f8d0cc; }

      @media (max-width: 900px) {
        .plat-cards, .fee-row { grid-template-columns: 1fr; }
        .promise { grid-template-columns: 1fr 1fr; }
        .promise > div:nth-child(3) { border-left: 0; }
        .promise > div:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
        .tiles, .tiles:has(> .tile:nth-child(4):last-child) { grid-template-columns: 1fr 1fr; }
        .step:not(:last-child)::after { display: none; }
      }
      @media (max-width: 600px) {
        .hero-stats { grid-template-columns: 1fr 1fr; }
        .hero-stats div:nth-child(3) { border-left: 0; }
        .hero-stats div:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
        .hero-stats b { font-size: 24px; }
        .plat-card { padding: 26px 22px 24px; }
        .plat-card h2 { font-size: 24px; }
        .promise, .tiles, .tiles:has(> .tile:nth-child(4):last-child) { grid-template-columns: 1fr; }
        .promise > div + div { border-left: 0; border-top: 1px solid var(--line-soft); }
        .sec-row { flex-direction: column; align-items: flex-start; }
        .final-card { padding: 52px 22px; border-radius: 26px; }
      }
      .home-hero .sub, .final-card p { text-wrap: balance; }
      @media (max-width: 600px) {
        #latestGrid .pick-card:nth-child(n+4) { display: none; }
        .plat-facts li { padding: 10px 12px; }
        .plat-facts b { font-size: 19px; }
        .plat-facts span { font-size: 11.5px; white-space: nowrap; }
      }