/* roulang page: index */
:root{
      --bg:#f5f7fb;
      --bg-soft:#eef4f7;
      --surface:#ffffff;
      --surface-2:#f9fbfd;
      --ink:#102033;
      --muted:#637083;
      --weak:#8a95a6;
      --line:#dce4ec;
      --primary:#102a43;
      --primary-2:#143d59;
      --accent:#15c7a7;
      --accent-dark:#0aa98e;
      --hot:#ff6b35;
      --warning:#ffd166;
      --success:#16a34a;
      --danger:#ef4444;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:32px;
      --shadow-sm:0 8px 24px rgba(16,42,67,.08);
      --shadow:0 18px 55px rgba(16,42,67,.13);
      --shadow-strong:0 28px 80px rgba(16,42,67,.22);
      --container:1160px;
      --header-h:76px;
      --ease:cubic-bezier(.2,.75,.25,1);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-width:320px;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 8%, rgba(21,199,167,.12), transparent 32%),
        radial-gradient(circle at 92% 4%, rgba(255,107,53,.10), transparent 28%),
        linear-gradient(180deg,#f8fbfd 0%,var(--bg) 48%,#eef4f7 100%);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.72;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
    a:hover{color:var(--accent-dark)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0}
    ::selection{background:rgba(21,199,167,.22);color:var(--primary)}
    :focus-visible{outline:3px solid rgba(21,199,167,.45);outline-offset:3px;border-radius:10px}

    .site-container{
      width:min(100% - 32px,var(--container));
      margin-inline:auto;
    }
    .section{
      padding:74px 0;
      position:relative;
    }
    .section-tight{padding:48px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary-2);
      font-weight:800;
      font-size:.92rem;
      letter-spacing:.02em;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(21,199,167,.12);
      border:1px solid rgba(21,199,167,.22);
    }
    .section-title{
      margin:16px 0 12px;
      font-size:clamp(1.75rem,3.2vw,2.85rem);
      line-height:1.16;
      font-weight:900;
      letter-spacing:-.04em;
      color:var(--primary);
    }
    .section-lead{
      max-width:760px;
      margin:0;
      color:var(--muted);
      font-size:1.05rem;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:28px;
    }
    .section-head .section-lead{max-width:640px}
    .text-gradient{
      background:linear-gradient(110deg,var(--accent),#58d8ff 50%,var(--warning));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      min-height:var(--header-h);
      backdrop-filter:blur(18px);
      background:rgba(248,251,253,.78);
      border-bottom:1px solid rgba(220,228,236,.82);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:950;
      color:var(--primary);
      letter-spacing:-.03em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        linear-gradient(135deg,var(--primary),var(--primary-2) 52%,var(--accent));
      box-shadow:0 12px 30px rgba(16,42,67,.22);
      flex:0 0 auto;
    }
    .brand-text{
      display:block;
      font-size:1.02rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:46vw;
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .menu-trigger{
      width:46px;
      height:46px;
      border-radius:16px;
      color:var(--primary);
      background:var(--surface);
      border:1px solid var(--line);
      display:grid;
      place-items:center;
      box-shadow:var(--shadow-sm);
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
    }
    .menu-trigger:hover{
      transform:translateY(-2px);
      border-color:rgba(21,199,167,.46);
      box-shadow:var(--shadow);
      background:#fbfffe;
    }
    .menu-trigger:active{transform:translateY(0) scale(.98)}
    .btn-modern{
      --btn-bg:var(--primary);
      --btn-color:#fff;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 18px;
      border-radius:999px;
      font-weight:850;
      color:var(--btn-color);
      background:var(--btn-bg);
      border:1px solid transparent;
      box-shadow:0 14px 34px rgba(16,42,67,.18);
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
      white-space:nowrap;
    }
    .btn-modern:hover{
      transform:translateY(-2px);
      color:var(--btn-color);
      box-shadow:0 22px 44px rgba(16,42,67,.22);
    }
    .btn-modern:active{transform:translateY(0) scale(.98)}
    .btn-accent{--btn-bg:linear-gradient(135deg,var(--hot),#ff9b42);box-shadow:0 16px 38px rgba(255,107,53,.28)}
    .btn-ghost{
      --btn-bg:rgba(255,255,255,.88);
      --btn-color:var(--primary);
      border-color:rgba(220,228,236,.96);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost:hover{border-color:rgba(21,199,167,.5);background:#fff}
    .btn-soft{
      --btn-bg:rgba(21,199,167,.12);
      --btn-color:var(--primary-2);
      border-color:rgba(21,199,167,.24);
      box-shadow:none;
    }

    .drawer-backdrop{
      position:fixed;
      inset:0;
      z-index:1100;
      background:rgba(10,22,35,.52);
      backdrop-filter:blur(8px);
      opacity:0;
      pointer-events:none;
      transition:opacity .28s var(--ease);
    }
    .drawer{
      position:fixed;
      inset:0 0 0 auto;
      width:min(520px,100%);
      z-index:1110;
      background:
        radial-gradient(circle at 78% 16%, rgba(21,199,167,.16), transparent 36%),
        linear-gradient(180deg,#fff,#f6fafb);
      box-shadow:-28px 0 70px rgba(16,42,67,.28);
      transform:translateX(104%);
      transition:transform .34s var(--ease);
      padding:24px;
      display:flex;
      flex-direction:column;
    }
    body.drawer-open{overflow:hidden}
    body.drawer-open .drawer-backdrop{opacity:1;pointer-events:auto}
    body.drawer-open .drawer{transform:translateX(0)}
    .drawer-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-bottom:20px;
      border-bottom:1px solid var(--line);
    }
    .drawer-close{
      width:44px;
      height:44px;
      border-radius:16px;
      color:var(--primary);
      background:rgba(16,42,67,.06);
      transition:background .2s var(--ease),transform .2s var(--ease);
    }
    .drawer-close:hover{background:rgba(21,199,167,.16);transform:rotate(8deg)}
    .drawer-body{
      padding:26px 0;
      overflow:auto;
    }
    .drawer-nav{
      display:grid;
      gap:12px;
      margin-bottom:24px;
    }
    .drawer-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:18px 18px;
      border-radius:20px;
      color:var(--primary);
      background:#fff;
      border:1px solid var(--line);
      font-weight:900;
      box-shadow:0 8px 22px rgba(16,42,67,.06);
    }
    .drawer-link.active,
    .drawer-link:hover{
      border-color:rgba(21,199,167,.42);
      background:linear-gradient(135deg,rgba(21,199,167,.12),#fff);
      transform:translateX(-3px);
    }
    .drawer-card{
      border-radius:24px;
      padding:20px;
      background:var(--primary);
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .drawer-card:after{
      content:"";
      position:absolute;
      right:-40px;
      top:-40px;
      width:150px;
      height:150px;
      border-radius:50%;
      background:rgba(21,199,167,.28);
    }
    .drawer-card p{color:rgba(255,255,255,.74);margin:8px 0 18px}
    .drawer-search{
      display:flex;
      gap:10px;
      padding:10px;
      border-radius:18px;
      background:#fff;
      border:1px solid rgba(255,255,255,.28);
      position:relative;
      z-index:1;
    }
    .drawer-search input{
      flex:1;
      min-width:0;
      border:0;
      outline:0;
      padding:10px 8px;
      background:transparent;
      color:var(--ink);
    }
    .drawer-search button{
      width:42px;
      height:42px;
      border-radius:14px;
      background:var(--accent);
      color:#06251f;
      font-weight:900;
    }

    .hero{
      min-height:650px;
      padding:44px 0 76px;
      display:flex;
      align-items:center;
    }
    .promo-stage{
      width:100%;
      border-radius:var(--radius-lg);
      overflow:hidden;
      position:relative;
      color:#fff;
      background:
        linear-gradient(110deg,rgba(16,42,67,.97),rgba(20,61,89,.92) 45%,rgba(13,118,106,.88)),
        radial-gradient(circle at 82% 20%, rgba(255,209,102,.42), transparent 28%);
      box-shadow:var(--shadow-strong);
      isolation:isolate;
    }
    .promo-stage:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(90deg,rgba(0,0,0,.75),rgba(0,0,0,.2));
      z-index:-1;
    }
    .promo-inner{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:26px;
      align-items:stretch;
      padding:42px;
    }
    .promo-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      min-height:455px;
      position:relative;
      z-index:1;
    }
    .hero-kicker{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:18px;
    }
    .hot-sticker{
      display:inline-grid;
      place-items:center;
      width:88px;
      height:88px;
      border-radius:50%;
      color:#391806;
      background:linear-gradient(135deg,#ffe17a,#ff9b42);
      font-weight:950;
      line-height:1.05;
      text-align:center;
      box-shadow:0 18px 36px rgba(255,107,53,.36);
      transform:rotate(-10deg);
      flex:0 0 auto;
    }
    .time-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 14px;
      border-radius:999px;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);
      backdrop-filter:blur(12px);
      font-weight:800;
    }
    h1{
      margin:0;
      font-size:clamp(2.2rem,5.3vw,5.25rem);
      line-height:1.04;
      letter-spacing:-.065em;
      font-weight:950;
      max-width:850px;
    }
    .hero-desc{
      margin:22px 0 0;
      max-width:720px;
      color:rgba(255,255,255,.78);
      font-size:1.12rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:28px;
    }
    .hero-metrics{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .metric-pill{
      min-width:146px;
      padding:13px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(14px);
    }
    .metric-pill strong{display:block;font-size:1.28rem;line-height:1;font-weight:950;color:#fff}
    .metric-pill span{display:block;margin-top:5px;color:rgba(255,255,255,.66);font-size:.9rem}
    .promo-panel{
      position:relative;
      display:grid;
      align-content:center;
      gap:16px;
      padding:20px;
    }
    .vertical-stack{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      transform:rotate(2deg);
    }
    .vertical-card{
      min-height:345px;
      border-radius:28px;
      padding:18px;
      position:relative;
      overflow:hidden;
      background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(238,244,247,.88));
      color:var(--primary);
      box-shadow:0 18px 44px rgba(3,12,20,.22);
      border:1px solid rgba(255,255,255,.65);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .vertical-card:nth-child(2){transform:translateY(26px);background:linear-gradient(180deg,#102a43,#18616a);color:#fff}
    .vertical-card:nth-child(3){transform:translateY(-12px);background:linear-gradient(180deg,#fff6db,#fff);color:#3a2607}
    .vertical-card:before{
      content:"";
      position:absolute;
      inset:auto -20px -40px -20px;
      height:48%;
      background:radial-gradient(circle at 50% 0,rgba(21,199,167,.34),transparent 60%);
    }
    .card-tag{
      align-self:flex-start;
      padding:7px 10px;
      border-radius:999px;
      font-size:.78rem;
      font-weight:900;
      background:rgba(21,199,167,.15);
      color:inherit;
      position:relative;
      z-index:1;
    }
    .vertical-card h3{
      font-size:1.02rem;
      line-height:1.35;
      margin:0;
      font-weight:950;
      position:relative;
      z-index:1;
    }
    .signal-dots{
      display:flex;
      gap:5px;
      position:relative;
      z-index:1;
    }
    .signal-dots i{
      width:9px;height:9px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(21,199,167,.1);
    }

    .news-strip{
      margin-top:-48px;
      position:relative;
      z-index:4;
      padding-top:0;
    }
    .strip-box{
      border-radius:28px;
      padding:18px;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(220,228,236,.88);
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .ticker-row{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:18px;
      align-items:center;
    }
    .ticker-label{
      display:flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      color:#fff;
      background:var(--primary);
      font-weight:900;
      white-space:nowrap;
    }
    .ticker-items{
      display:flex;
      gap:12px;
      overflow:auto;
      scrollbar-width:none;
      padding:3px;
    }
    .ticker-items::-webkit-scrollbar{display:none}
    .ticker-chip{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:8px;
      padding:11px 14px;
      border-radius:999px;
      background:var(--surface-2);
      border:1px solid var(--line);
      color:var(--muted);
      font-weight:750;
    }
    .ticker-chip:hover{
      transform:translateY(-2px);
      border-color:rgba(21,199,167,.45);
      color:var(--primary);
      background:#fff;
    }

    .answer-layout{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:start;
    }
    .answer-card{
      border-radius:28px;
      padding:28px;
      background:var(--surface);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      height:100%;
    }
    .answer-card.dark{
      background:
        radial-gradient(circle at 88% 14%,rgba(21,199,167,.24),transparent 34%),
        linear-gradient(145deg,var(--primary),#0b1d30);
      color:#fff;
      border-color:rgba(255,255,255,.12);
      box-shadow:var(--shadow);
    }
    .answer-card.dark p{color:rgba(255,255,255,.74)}
    .answer-list{
      display:grid;
      gap:14px;
    }
    .qa-item{
      display:grid;
      grid-template-columns:46px 1fr;
      gap:14px;
      align-items:start;
      padding:18px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 10px 26px rgba(16,42,67,.06);
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
    }
    .qa-item:hover{
      transform:translateY(-3px);
      border-color:rgba(21,199,167,.42);
      box-shadow:var(--shadow-sm);
    }
    .qa-icon{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      color:var(--primary);
      background:rgba(21,199,167,.13);
      font-size:1.25rem;
    }
    .qa-item h3{margin:0 0 5px;font-size:1.03rem;font-weight:950}
    .qa-item p{margin:0;color:var(--muted);font-size:.96rem}
    .mini-stats{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
      margin-top:20px;
    }
    .mini-stat{
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.14);
    }
    .mini-stat strong{display:block;font-size:1.65rem;font-weight:950}
    .mini-stat span{color:rgba(255,255,255,.68);font-size:.9rem}

    .info-grid{
      display:grid;
      grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);
      gap:24px;
    }
    .info-panel,
    .rank-panel,
    .security-panel,
    .app-panel,
    .plan-card,
    .review-card{
      border-radius:28px;
      background:rgba(255,255,255,.9);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .info-panel{padding:8px}
    .article-list{display:grid;gap:4px;margin:0;padding:0;list-style:none}
    .article-link{
      display:grid;
      grid-template-columns:1fr auto;
      gap:16px;
      padding:18px 20px;
      border-radius:22px;
      align-items:center;
    }
    .article-link:hover{
      background:linear-gradient(135deg,rgba(21,199,167,.10),rgba(255,255,255,.9));
      color:var(--primary);
    }
    .article-link strong{
      display:block;
      margin-bottom:4px;
      font-size:1rem;
      font-weight:950;
    }
    .article-link span{
      display:block;
      color:var(--muted);
      font-size:.93rem;
    }
    .article-meta{
      display:flex;
      align-items:center;
      gap:8px;
      color:var(--weak);
      font-size:.88rem;
      white-space:nowrap;
    }
    .rank-panel{padding:22px}
    .rank-panel h3,.security-panel h3,.app-panel h3,.plan-card h3{font-weight:950;margin:0}
    .rank-list{display:grid;gap:11px;margin:18px 0 0;padding:0;list-style:none}
    .rank-item{
      display:grid;
      grid-template-columns:30px 1fr auto;
      gap:12px;
      align-items:center;
      padding:12px;
      border-radius:16px;
      background:var(--surface-2);
      border:1px solid rgba(220,228,236,.7);
    }
    .rank-no{
      width:30px;height:30px;border-radius:10px;
      display:grid;place-items:center;
      color:#fff;
      background:var(--primary);
      font-weight:950;
      font-size:.85rem;
    }
    .rank-item:nth-child(-n+3) .rank-no{background:linear-gradient(135deg,var(--hot),#ffad4f)}
    .rank-name{font-weight:850;font-size:.95rem}
    .rank-trend{
      color:var(--accent-dark);
      font-weight:900;
      font-size:.88rem;
      white-space:nowrap;
    }

    .category-rail{
      display:flex;
      gap:14px;
      overflow:auto;
      padding:4px 2px 16px;
      scrollbar-width:thin;
      scrollbar-color:rgba(21,199,167,.5) transparent;
    }
    .category-card{
      flex:0 0 230px;
      min-height:160px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      padding:20px;
      border-radius:26px;
      background:var(--surface);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
    }
    .category-card:hover{
      transform:translateY(-4px);
      border-color:rgba(21,199,167,.42);
      box-shadow:var(--shadow);
      color:var(--primary);
    }
    .category-card i{
      width:48px;height:48px;border-radius:18px;
      display:grid;place-items:center;
      color:var(--primary);
      background:rgba(21,199,167,.12);
      font-size:1.35rem;
    }
    .category-card strong{font-weight:950;margin-top:16px;display:block}
    .category-card span{color:var(--muted);font-size:.93rem}

    .security-wrap{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:24px;
      align-items:stretch;
    }
    .security-panel{padding:28px}
    .shield{
      min-height:100%;
      padding:34px;
      border-radius:30px;
      color:#fff;
      background:
        radial-gradient(circle at 72% 20%,rgba(255,209,102,.24),transparent 30%),
        linear-gradient(145deg,#0b1d30,var(--primary-2));
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .shield:after{
      content:"";
      position:absolute;
      right:-46px;
      bottom:-68px;
      width:230px;height:230px;border-radius:50%;
      border:36px solid rgba(21,199,167,.16);
    }
    .shield-icon{
      width:74px;height:74px;border-radius:24px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      font-size:2rem;
    }
    .shield h2{font-weight:950;letter-spacing:-.035em;margin:22px 0 10px}
    .shield p{color:rgba(255,255,255,.72);margin:0}
    .security-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .security-item{
      padding:18px;
      border-radius:22px;
      background:var(--surface-2);
      border:1px solid var(--line);
      transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
    }
    .security-item:hover{
      transform:translateY(-3px);
      background:#fff;
      border-color:rgba(21,199,167,.42);
    }
    .security-item i{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      color:var(--accent-dark);
      background:rgba(21,199,167,.12);
      margin-bottom:12px;
    }
    .security-item h3{font-size:1rem;font-weight:950;margin:0 0 6px}
    .security-item p{margin:0;color:var(--muted);font-size:.93rem}

    .trust-bar{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:24px;
    }
    .trust-item{
      display:flex;
      align-items:center;
      gap:12px;
      padding:16px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 10px 24px rgba(16,42,67,.05);
    }
    .trust-item i{
      width:40px;height:40px;border-radius:14px;
      display:grid;place-items:center;
      color:#fff;
      background:var(--primary);
      flex:0 0 auto;
    }
    .trust-item strong{display:block;font-weight:950;font-size:.96rem}
    .trust-item span{display:block;color:var(--muted);font-size:.86rem}

    .app-section{
      padding-bottom:52px;
    }
    .app-panel{
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr .85fr;
      min-height:430px;
    }
    .app-copy{
      padding:38px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .app-copy p{color:var(--muted);margin:12px 0 0}
    .download-row{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .app-visual{
      position:relative;
      min-height:360px;
      background:
        linear-gradient(135deg,rgba(21,199,167,.10),rgba(255,209,102,.16)),
        linear-gradient(180deg,#f8fbfd,#eaf2f6);
      display:grid;
      place-items:center;
      overflow:hidden;
    }
    .app-visual:before{
      content:"";
      position:absolute;
      width:320px;height:320px;border-radius:50%;
      background:rgba(21,199,167,.18);
      filter:blur(2px);
    }
    .save-card{
      position:relative;
      width:min(310px,78%);
      border-radius:34px;
      padding:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .save-card-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      margin-bottom:18px;
    }
    .save-dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:18px 0 0 #ffd166,36px 0 0 #ff6b35}
    .qr-sim{
      height:150px;
      border-radius:24px;
      background:
        linear-gradient(90deg,var(--primary) 10px,transparent 10px) 0 0/26px 26px,
        linear-gradient(var(--primary) 10px,transparent 10px) 0 0/26px 26px,
        #eef4f7;
      opacity:.9;
      margin-bottom:18px;
    }
    .save-card h3{font-weight:950;margin:0 0 6px}
    .save-card p{margin:0;color:var(--muted);font-size:.93rem}

    .plan-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      align-items:stretch;
    }
    .plan-card{
      padding:24px;
      position:relative;
      overflow:hidden;
      transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
    }
    .plan-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(21,199,167,.42)}
    .plan-card.featured{
      background:
        radial-gradient(circle at 86% 10%,rgba(255,209,102,.28),transparent 32%),
        linear-gradient(145deg,var(--primary),#0b1d30);
      color:#fff;
      border-color:rgba(255,255,255,.14);
      box-shadow:var(--shadow);
    }
    .plan-card.featured p,.plan-card.featured li{color:rgba(255,255,255,.72)}
    .plan-badge{
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      color:var(--primary);
      background:rgba(21,199,167,.13);
      font-weight:900;
      font-size:.82rem;
      margin-bottom:16px;
    }
    .featured .plan-badge{background:rgba(255,255,255,.14);color:#fff}
    .price{
      display:flex;
      align-items:baseline;
      gap:4px;
      margin:16px 0;
      font-weight:950;
    }
    .price strong{font-size:2.6rem;line-height:1}
    .price span{color:var(--muted);font-weight:800}
    .featured .price span{color:rgba(255,255,255,.62)}
    .plan-card ul{
      list-style:none;
      padding:0;
      margin:18px 0 22px;
      display:grid;
      gap:10px;
    }
    .plan-card li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:.95rem;
    }
    .plan-card li i{color:var(--accent-dark);margin-top:4px}
    .featured li i{color:var(--warning)}

    .review-wall{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
    }
    .review-card{
      padding:22px;
    }
    .review-card p{color:var(--muted);margin:12px 0 16px}
    .reviewer{display:flex;align-items:center;gap:12px}
    .avatar{
      width:42px;height:42px;border-radius:50%;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      font-weight:950;
    }
    .reviewer strong{display:block;font-weight:950}
    .reviewer span{display:block;color:var(--weak);font-size:.86rem}

    .final-cta{
      padding:0 0 72px;
    }
    .cta-box{
      border-radius:34px;
      padding:34px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(255,107,53,.92),rgba(21,199,167,.88)),
        linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr auto;
      gap:20px;
      align-items:center;
      overflow:hidden;
      position:relative;
    }
    .cta-box:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:radial-gradient(rgba(255,255,255,.3) 1px,transparent 1px);
      background-size:22px 22px;
      opacity:.4;
    }
    .cta-box > *{position:relative;z-index:1}
    .cta-box h2{font-weight:950;letter-spacing:-.04em;margin:0 0 8px}
    .cta-box p{margin:0;color:rgba(255,255,255,.78);max-width:760px}

    .site-footer{
      color:#d8e5ed;
      background:#081827;
      padding:54px 0 28px;
      position:relative;
      overflow:hidden;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      width:300px;height:300px;border-radius:50%;
      background:rgba(21,199,167,.12);
      right:-80px;top:-120px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      position:relative;
      z-index:1;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      color:#fff;
      margin-bottom:14px;
    }
    .footer-desc{color:rgba(216,229,237,.72);margin:0;max-width:540px}
    .footer-title{
      color:#fff;
      font-weight:950;
      margin:0 0 14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(216,229,237,.72);
    }
    .footer-links a:hover{color:var(--accent)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      margin-top:36px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.1);
      color:rgba(216,229,237,.58);
      font-size:.92rem;
      position:relative;
      z-index:1;
    }

    .floating-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:990;
      width:min(100% - 28px,760px);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 14px 12px 18px;
      border-radius:999px;
      background:rgba(255,255,255,.88);
      border:1px solid rgba(220,228,236,.92);
      box-shadow:0 20px 50px rgba(16,42,67,.18);
      backdrop-filter:blur(18px);
    }
    .floating-cta strong{font-weight:950}
    .floating-cta span{color:var(--muted);font-size:.9rem;margin-left:6px}

    @media (max-width:1024px){
      .promo-inner{grid-template-columns:1fr;padding:34px}
      .promo-copy{min-height:auto}
      .vertical-stack{transform:none}
      .vertical-card{min-height:260px}
      .vertical-card:nth-child(2),.vertical-card:nth-child(3){transform:none}
      .answer-layout,.security-wrap,.app-panel{grid-template-columns:1fr}
      .info-grid{grid-template-columns:1fr}
      .trust-bar{grid-template-columns:repeat(2,1fr)}
      .plan-grid,.review-wall{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
    }

    @media (max-width:768px){
      :root{--header-h:68px}
      .site-container{width:min(100% - 24px,var(--container))}
      .section{padding:54px 0}
      .hero{padding:26px 0 58px;min-height:auto}
      .promo-inner{padding:24px}
      .promo-stage{border-radius:28px}
      .hot-sticker{width:74px;height:74px;font-size:.86rem}
      .hero-desc{font-size:1rem}
      .hero-actions .btn-modern{width:100%}
      .metric-pill{flex:1 1 calc(50% - 8px);min-width:0}
      .vertical-stack{
        display:flex;
        overflow:auto;
        padding-bottom:10px;
        scroll-snap-type:x mandatory;
      }
      .vertical-card{
        flex:0 0 220px;
        min-height:285px;
        scroll-snap-align:start;
      }
      .ticker-row{grid-template-columns:1fr}
      .ticker-label{width:max-content}
      .ticker-row > .btn-modern{width:100%}
      .security-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .cta-box{grid-template-columns:1fr;padding:26px}
      .floating-cta{
        border-radius:24px;
        align-items:flex-start;
        flex-direction:column;
      }
      .floating-cta .btn-modern{width:100%}
      .header-actions .btn-modern{display:none}
      .brand-text{max-width:62vw;font-size:.95rem}
    }

    @media (max-width:520px){
      h1{font-size:2.16rem;letter-spacing:-.05em}
      .section-title{font-size:1.72rem}
      .promo-inner{padding:20px}
      .hero-kicker{align-items:flex-start}
      .metric-pill{flex:1 1 100%}
      .mini-stats,.trust-bar{grid-template-columns:1fr}
      .article-link{grid-template-columns:1fr;padding:16px}
      .article-meta{white-space:normal}
      .rank-item{grid-template-columns:30px 1fr}
      .rank-trend{grid-column:2}
      .app-copy{padding:24px}
      .drawer{padding:18px}
      .save-card{width:88%}
      .footer-bottom{display:grid}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}