/* roulang page: index */
:root{
      --primary:#1e6bff;
      --primary-dark:#134ec2;
      --primary-soft:#eaf2ff;
      --accent:#17b8a6;
      --accent-soft:#e8fbf8;
      --warning:#f6a623;
      --danger:#e55353;
      --ink:#102033;
      --text:#34465d;
      --muted:#748397;
      --light:#f7faff;
      --surface:#ffffff;
      --surface-2:#f1f6fd;
      --border:#dbe6f5;
      --border-strong:#c7d6eb;
      --shadow-sm:0 10px 28px rgba(31,74,125,.08);
      --shadow-md:0 18px 48px rgba(31,74,125,.12);
      --shadow-lg:0 26px 70px rgba(31,74,125,.16);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --container:1180px;
      --nav-height:76px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 5%, rgba(30,107,255,.10), transparent 28%),
        radial-gradient(circle at 85% 18%, rgba(23,184,166,.10), transparent 28%),
        linear-gradient(180deg,#fbfdff 0%,#f5f9ff 45%,#ffffff 100%);
      line-height:1.72;
      min-width:320px;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border .22s ease,box-shadow .22s ease,transform .22s ease}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{border:0}
    ::selection{background:rgba(30,107,255,.18);color:var(--ink)}
    .container-rou{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:86px 0;position:relative}
    .section-tight{padding:64px 0}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .section-kicker i{font-size:12px}
    .section-title{
      font-size:clamp(28px,3.1vw,44px);
      line-height:1.18;
      color:var(--ink);
      letter-spacing:-.04em;
      margin:0 0 14px;
      font-weight:850;
    }
    .section-desc{
      max-width:790px;
      margin:0;
      color:var(--muted);
      font-size:17px;
    }
    .title-row{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .title-row .section-desc{max-width:650px}
    .soft-divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:18px 0}
    .btn-rou{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:12px 19px;
      border-radius:999px;
      font-weight:800;
      letter-spacing:.01em;
      border:1px solid transparent;
      cursor:pointer;
      white-space:nowrap;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border .22s ease,color .22s ease;
    }
    .btn-rou:hover{transform:translateY(-2px)}
    .btn-rou:focus-visible,
    .nav-link:focus-visible,
    .form-control:focus,
    .accordion-button:focus{
      outline:3px solid rgba(30,107,255,.24);
      outline-offset:2px;
      box-shadow:none;
    }
    .btn-primary-rou{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#3f8cff);
      box-shadow:0 14px 28px rgba(30,107,255,.24);
    }
    .btn-primary-rou:hover{color:#fff;background:linear-gradient(135deg,var(--primary-dark),var(--primary));box-shadow:0 18px 36px rgba(30,107,255,.30)}
    .btn-ghost-rou{
      color:var(--primary-dark);
      background:#fff;
      border-color:var(--border);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost-rou:hover{background:var(--primary-soft);border-color:#bcd2ff}
    .btn-dark-rou{
      color:#fff;
      background:#102033;
      box-shadow:0 16px 34px rgba(16,32,51,.18);
    }
    .btn-dark-rou:hover{color:#fff;background:#172c45}
    .badge-rou{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--border);
      color:var(--muted);
      font-size:13px;
      font-weight:750;
      box-shadow:0 8px 20px rgba(31,74,125,.05);
    }
    .badge-rou strong{color:var(--ink)}
    .card-rou{
      background:rgba(255,255,255,.92);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
      overflow:hidden;
    }
    .card-rou:hover{
      transform:translateY(-5px);
      border-color:#c1d7ff;
      box-shadow:var(--shadow-md);
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:1040;
      background:rgba(255,255,255,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(219,230,245,.78);
      box-shadow:0 10px 30px rgba(31,74,125,.05);
    }
    .navbar{min-height:var(--nav-height);padding:12px 0}
    .brand-mark{
      width:42px;height:42px;
      display:grid;place-items:center;
      border-radius:14px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 12px 24px rgba(30,107,255,.24);
      flex:0 0 auto;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:11px;
      margin:0;
      color:var(--ink);
      font-weight:900;
      letter-spacing:-.04em;
      line-height:1.1;
    }
    .navbar-brand span{display:block;font-size:18px}
    .navbar-brand small{display:block;font-size:12px;color:var(--muted);font-weight:700;letter-spacing:0;margin-top:3px}
    .navbar-toggler{
      border:1px solid var(--border);
      border-radius:14px;
      padding:9px 11px;
      background:#fff;
      color:var(--ink);
      box-shadow:var(--shadow-sm);
    }
    .navbar-toggler:focus{box-shadow:0 0 0 4px rgba(30,107,255,.12)}
    .nav-center{
      margin-left:32px;
      gap:6px;
      background:var(--surface-2);
      border:1px solid var(--border);
      border-radius:999px;
      padding:5px;
    }
    .nav-center .nav-link{
      color:var(--text);
      font-weight:800;
      border-radius:999px;
      padding:9px 16px;
      line-height:1;
    }
    .nav-center .nav-link.active,
    .nav-center .nav-link:hover{
      color:var(--primary-dark);
      background:#fff;
      box-shadow:0 8px 18px rgba(31,74,125,.06);
    }
    .nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
    .nav-search{
      width:250px;
      position:relative;
    }
    .nav-search i{
      position:absolute;
      left:14px;
      top:50%;
      transform:translateY(-50%);
      color:var(--muted);
      font-size:14px;
      pointer-events:none;
    }
    .nav-search .form-control{
      height:44px;
      border-radius:999px;
      border:1px solid var(--border);
      background:#fff;
      padding-left:38px;
      color:var(--ink);
      font-size:14px;
    }
    .nav-search .form-control::placeholder{color:#91a0b4}
    .nav-search .form-control:focus{border-color:#a9c5ff;background:#fff}
    .nav-entry{
      min-height:44px;
      padding:10px 15px;
      border-radius:999px;
      color:var(--text);
      font-weight:800;
      border:1px solid var(--border);
      background:#fff;
    }
    .nav-entry:hover{color:var(--primary-dark);background:var(--primary-soft)}
    .hero{
      padding:58px 0 72px;
    }
    .hero-panel{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid rgba(189,211,244,.95);
      background:
        linear-gradient(135deg,rgba(255,255,255,.95) 0%,rgba(239,246,255,.95) 48%,rgba(232,251,248,.88) 100%);
      box-shadow:var(--shadow-lg);
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:-160px -120px auto auto;
      width:420px;height:420px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(30,107,255,.18),transparent 62%);
    }
    .hero-panel:after{
      content:"";
      position:absolute;
      inset:auto auto -190px -110px;
      width:360px;height:360px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(23,184,166,.17),transparent 64%);
    }
    .hero-inner{
      position:relative;
      z-index:1;
      padding:54px;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:38px;
      align-items:stretch;
    }
    .hero-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:22px;
    }
    h1.hero-title{
      margin:0;
      color:var(--ink);
      font-size:clamp(34px,5vw,62px);
      line-height:1.08;
      font-weight:920;
      letter-spacing:-.065em;
      max-width:860px;
    }
    .hero-intro{
      margin:20px 0 0;
      color:#475a72;
      font-size:18px;
      max-width:760px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:13px;
      margin-top:28px;
    }
    .hero-stats{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:30px;
      max-width:760px;
    }
    .stat-mini{
      background:rgba(255,255,255,.78);
      border:1px solid var(--border);
      border-radius:18px;
      padding:15px 16px;
      box-shadow:0 12px 24px rgba(31,74,125,.06);
    }
    .stat-mini b{display:block;color:var(--ink);font-size:22px;line-height:1.1}
    .stat-mini span{display:block;color:var(--muted);font-size:13px;font-weight:700;margin-top:6px}
    .trial-card{
      align-self:stretch;
      background:#fff;
      border:1px solid var(--border);
      border-radius:30px;
      box-shadow:var(--shadow-md);
      padding:24px;
    }
    .trial-top{
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:flex-start;
      margin-bottom:18px;
    }
    .trial-top h2{
      margin:0;
      color:var(--ink);
      font-size:23px;
      font-weight:880;
      letter-spacing:-.03em;
    }
    .trial-top p{margin:8px 0 0;color:var(--muted);font-size:14px}
    .age-chip{
      flex:0 0 auto;
      color:#fff;
      background:linear-gradient(135deg,#102033,#25405f);
      border-radius:16px;
      padding:9px 11px;
      font-weight:900;
      letter-spacing:.02em;
    }
    .apply-form{display:grid;gap:12px;margin-top:14px}
    .field-soft{
      border:1px solid var(--border);
      border-radius:16px;
      background:var(--light);
      padding:13px 14px;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .field-soft i{color:var(--primary)}
    .field-soft input,
    .field-soft select{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--ink);
      min-width:0;
    }
    .field-soft input::placeholder{color:#8fa0b5}
    .consent{
      display:flex;
      gap:9px;
      align-items:flex-start;
      color:var(--muted);
      font-size:13px;
      margin:4px 0 2px;
    }
    .consent input{margin-top:5px;accent-color:var(--primary)}
    .trial-note{
      margin:14px 0 0;
      border-radius:18px;
      padding:12px 14px;
      background:var(--accent-soft);
      color:#176b62;
      font-size:13px;
      font-weight:700;
    }
    .track-wrap{
      display:grid;
      grid-template-columns:280px 1fr;
      gap:22px;
      align-items:stretch;
    }
    .track-control{
      padding:26px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,#102033,#193757);
      color:#fff;
      box-shadow:var(--shadow-md);
    }
    .track-control h3{font-size:25px;font-weight:880;margin:0 0 10px;letter-spacing:-.03em}
    .track-control p{margin:0;color:rgba(255,255,255,.72)}
    .track-dots{display:flex;gap:8px;margin-top:26px}
    .track-dots span{width:32px;height:8px;border-radius:999px;background:rgba(255,255,255,.22)}
    .track-dots span.active{background:var(--accent)}
    .track-lane{
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid var(--border);
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .track-scroll{
      display:grid;
      grid-auto-flow:column;
      grid-auto-columns:minmax(220px,1fr);
      overflow-x:auto;
      gap:14px;
      padding:18px;
      scrollbar-width:thin;
      scrollbar-color:#bdd1ee transparent;
    }
    .track-card{
      min-height:198px;
      border-radius:22px;
      padding:20px;
      border:1px solid var(--border);
      background:
        linear-gradient(180deg,rgba(255,255,255,.78),rgba(255,255,255,.96)),
        radial-gradient(circle at 80% 10%,rgba(30,107,255,.20),transparent 38%),
        var(--light);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .track-card:hover{border-color:#aac6ff;box-shadow:0 14px 30px rgba(31,74,125,.10)}
    .track-card .icon{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent));
    }
    .track-card h4{font-size:19px;color:var(--ink);font-weight:850;margin:14px 0 8px}
    .track-card p{color:var(--muted);font-size:14px;margin:0}
    .recommend-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:22px;
    }
    .feature-reco{
      min-height:420px;
      padding:30px;
      border-radius:var(--radius-xl);
      border:1px solid var(--border);
      background:
        linear-gradient(180deg,rgba(16,32,51,.22),rgba(16,32,51,.70)),
        linear-gradient(135deg,#8bb6ff,#d9e8ff 48%,#d4fbf4);
      color:#fff;
      box-shadow:var(--shadow-md);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
    }
    .feature-reco h3{font-size:34px;line-height:1.18;margin:0;font-weight:900;letter-spacing:-.045em}
    .feature-reco p{margin:14px 0 0;color:rgba(255,255,255,.78);max-width:560px}
    .reco-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
    .reco-meta span{display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.20);font-size:13px;font-weight:750}
    .rank-list{
      display:grid;
      gap:13px;
    }
    .rank-item{
      display:grid;
      grid-template-columns:42px 1fr auto;
      gap:12px;
      align-items:center;
      padding:16px;
      border-radius:22px;
      border:1px solid var(--border);
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .rank-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bdd4ff}
    .rank-no{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:900;
    }
    .rank-item h4{font-size:16px;margin:0 0 4px;color:var(--ink);font-weight:850}
    .rank-item p{font-size:13px;margin:0;color:var(--muted)}
    .rank-hot{font-size:13px;color:#14786f;background:var(--accent-soft);border-radius:999px;padding:7px 9px;font-weight:800}
    .zone-board{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .zone-card{
      position:relative;
      min-height:210px;
      padding:22px;
      border-radius:26px;
      border:1px solid var(--border);
      background:#fff;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .zone-card:after{
      content:"";
      position:absolute;
      right:-38px;bottom:-44px;
      width:130px;height:130px;border-radius:50%;
      background:rgba(30,107,255,.08);
    }
    .zone-card:nth-child(even):after{background:rgba(23,184,166,.10)}
    .zone-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#bdd4ff}
    .zone-card i{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;place-items:center;
      color:var(--primary);
      background:var(--primary-soft);
      margin-bottom:18px;
      font-size:18px;
    }
    .zone-card h3{font-size:20px;color:var(--ink);font-weight:880;margin:0 0 10px}
    .zone-card p{color:var(--muted);font-size:14px;margin:0 0 20px}
    .zone-card a{font-weight:850;color:var(--primary-dark);position:relative;z-index:1}
    .selling-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .selling-card{
      padding:26px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
    }
    .selling-card:nth-child(2){
      background:linear-gradient(180deg,#102033,#193c60);
      color:#fff;
      border-color:#18365a;
      box-shadow:var(--shadow-md);
    }
    .selling-card .selling-icon{
      width:52px;height:52px;border-radius:18px;
      display:grid;place-items:center;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:20px;
      margin-bottom:18px;
    }
    .selling-card:nth-child(2) .selling-icon{background:rgba(255,255,255,.14);color:#fff}
    .selling-card h3{font-size:22px;margin:0 0 10px;color:var(--ink);font-weight:900;letter-spacing:-.03em}
    .selling-card:nth-child(2) h3{color:#fff}
    .selling-card p{margin:0;color:var(--muted)}
    .selling-card:nth-child(2) p{color:rgba(255,255,255,.72)}
    .vertical-feed{
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:16px;
    }
    .vertical-card{
      min-height:320px;
      border-radius:30px;
      overflow:hidden;
      position:relative;
      background:
        linear-gradient(180deg,rgba(16,32,51,.04),rgba(16,32,51,.70)),
        linear-gradient(145deg,#d9e8ff,#f7faff 52%,#d9fbf6);
      border:1px solid rgba(255,255,255,.6);
      box-shadow:var(--shadow-sm);
      display:flex;
      align-items:flex-end;
      transition:transform .24s ease,box-shadow .24s ease;
    }
    .vertical-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
    .vertical-card:nth-child(2){background:linear-gradient(180deg,rgba(16,32,51,.05),rgba(16,32,51,.72)),linear-gradient(145deg,#cde0ff,#fff4df)}
    .vertical-card:nth-child(3){background:linear-gradient(180deg,rgba(16,32,51,.05),rgba(16,32,51,.72)),linear-gradient(145deg,#cffff5,#eaf2ff)}
    .vertical-card:nth-child(4){background:linear-gradient(180deg,rgba(16,32,51,.05),rgba(16,32,51,.72)),linear-gradient(145deg,#edf5ff,#d8e7ff)}
    .vertical-card:nth-child(5){background:linear-gradient(180deg,rgba(16,32,51,.05),rgba(16,32,51,.72)),linear-gradient(145deg,#f0fbff,#d9fbf6)}
    .vertical-content{
      width:100%;
      padding:18px;
      color:#fff;
      position:relative;
      z-index:1;
    }
    .vertical-content .tag{font-size:12px;font-weight:850;padding:6px 9px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22)}
    .vertical-content h3{font-size:18px;line-height:1.32;font-weight:880;margin:14px 0 14px}
    .vertical-content a{display:inline-flex;align-items:center;gap:7px;color:#fff;font-weight:850;font-size:13px}
    .invite-panel{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
      align-items:stretch;
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg,#102033,#1b4269 56%,#166b73);
      padding:28px;
      color:#fff;
      box-shadow:var(--shadow-lg);
      overflow:hidden;
    }
    .invite-main{
      padding:16px 12px;
    }
    .invite-main h2{font-size:34px;line-height:1.18;font-weight:920;letter-spacing:-.045em;margin:0 0 14px}
    .invite-main p{color:rgba(255,255,255,.74);margin:0;max-width:640px}
    .progress-box{
      margin-top:24px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      border-radius:22px;
      padding:18px;
    }
    .progress-top{display:flex;justify-content:space-between;gap:15px;margin-bottom:10px;font-weight:850}
    .progress{
      height:12px;
      background:rgba(255,255,255,.14);
      border-radius:999px;
      overflow:hidden;
    }
    .progress-bar{background:linear-gradient(90deg,var(--accent),#85f7ea);border-radius:999px}
    .invite-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
    .invite-step{padding:12px;border-radius:18px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(255,255,255,.78)}
    .invite-side{
      background:rgba(255,255,255,.94);
      border-radius:28px;
      padding:22px;
      color:var(--text);
    }
    .leader-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
    .leader-title h3{font-size:20px;color:var(--ink);font-weight:900;margin:0}
    .leader-title span{font-size:13px;color:#14786f;background:var(--accent-soft);border-radius:999px;padding:6px 9px;font-weight:850}
    .leader-item{
      display:grid;
      grid-template-columns:34px 1fr auto;
      align-items:center;
      gap:10px;
      padding:11px 0;
      border-bottom:1px solid var(--border);
    }
    .leader-item:last-child{border-bottom:0}
    .leader-item b{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      color:var(--primary-dark);
      background:var(--primary-soft);
    }
    .leader-item strong{display:block;color:var(--ink);font-size:14px}
    .leader-item small{display:block;color:var(--muted);font-size:12px}
    .leader-item em{font-style:normal;color:#14786f;font-weight:900;font-size:13px}
    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:24px;
    }
    .news-list{
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:#fff;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:120px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--border);
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:var(--light)}
    .news-date{
      color:var(--muted);
      font-weight:800;
      font-size:13px;
    }
    .news-item h3{font-size:18px;margin:0 0 6px;color:var(--ink);font-weight:880}
    .news-item p{margin:0;color:var(--muted);font-size:14px}
    .news-item i{color:#9aacbf}
    .side-panel{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      padding:22px;
      align-self:start;
    }
    .side-panel h3{font-size:21px;color:var(--ink);font-weight:900;margin:0 0 14px}
    .check-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .check-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text);font-size:14px}
    .check-list i{color:var(--accent);margin-top:5px}
    .watch-section{
      padding:86px 0 42px;
    }
    .watch-panel{
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 10% 20%,rgba(30,107,255,.14),transparent 34%),
        linear-gradient(135deg,#ffffff,#eef5ff);
      border:1px solid var(--border);
      box-shadow:var(--shadow-lg);
      padding:34px;
    }
    .watch-grid{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:26px;
      align-items:start;
    }
    .watch-copy h2{font-size:clamp(28px,3.4vw,46px);color:var(--ink);line-height:1.15;font-weight:920;letter-spacing:-.05em;margin:0 0 14px}
    .watch-copy p{color:var(--muted);font-size:17px;margin:0 0 24px}
    .watch-actions{display:flex;flex-wrap:wrap;gap:12px}
    .access-card{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      margin-top:26px;
    }
    .access-item{
      padding:16px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
    }
    .access-item b{display:block;color:var(--ink);font-size:20px}
    .access-item span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
    .faq-box{
      background:#fff;
      border:1px solid var(--border);
      border-radius:28px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .accordion-item{
      border:0;
      border-bottom:1px solid var(--border);
      background:#fff;
    }
    .accordion-item:last-child{border-bottom:0}
    .accordion-button{
      padding:19px 22px;
      color:var(--ink);
      font-weight:850;
      background:#fff;
      box-shadow:none;
    }
    .accordion-button:not(.collapsed){
      color:var(--primary-dark);
      background:var(--primary-soft);
      box-shadow:none;
    }
    .accordion-body{
      color:var(--muted);
      padding:0 22px 20px;
      font-size:14px;
    }
    .footer{
      margin-top:34px;
      background:#0f2033;
      color:rgba(255,255,255,.74);
      padding:52px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .8fr .8fr;
      gap:30px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:900;
      font-size:20px;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer p{margin:0;color:rgba(255,255,255,.62)}
    .footer h3{color:#fff;font-size:16px;font-weight:900;margin:0 0 14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:rgba(255,255,255,.68);font-weight:700}
    .footer-links a:hover{color:#fff}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
      padding-top:24px;
      margin-top:32px;
      border-top:1px solid rgba(255,255,255,.10);
      font-size:13px;
      color:rgba(255,255,255,.55);
    }
    .risk-note{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(246,166,35,.12);
      border:1px solid rgba(246,166,35,.22);
      color:#8a5a10;
      font-size:14px;
      margin-top:22px;
    }
    .risk-note i{margin-top:5px}
    @media (max-width:1199px){
      .nav-search{width:210px}
      .hero-inner{grid-template-columns:1fr;gap:24px}
      .trial-card{max-width:720px}
      .zone-board{grid-template-columns:repeat(2,1fr)}
      .vertical-feed{grid-template-columns:repeat(3,1fr)}
      .recommend-grid,.invite-panel,.watch-grid,.news-layout{grid-template-columns:1fr}
    }
    @media (max-width:991px){
      :root{--nav-height:auto}
      .navbar-collapse{
        margin-top:14px;
        padding:16px;
        border:1px solid var(--border);
        border-radius:24px;
        background:#fff;
        box-shadow:var(--shadow-md);
      }
      .nav-center{
        margin:0 0 14px;
        border-radius:20px;
        align-items:stretch;
      }
      .nav-center .nav-link{border-radius:16px}
      .nav-actions{
        margin-left:0;
        flex-wrap:wrap;
        align-items:stretch;
      }
      .nav-search{width:100%;order:-1}
      .nav-entry,.nav-actions .btn-rou{flex:1}
      .section{padding:66px 0}
      .hero{padding:36px 0 58px}
      .hero-inner{padding:34px}
      .track-wrap{grid-template-columns:1fr}
      .selling-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:767px){
      .container-rou{width:min(100% - 28px,var(--container))}
      .title-row{display:block;margin-bottom:24px}
      .section-desc{font-size:15px}
      .hero-inner{padding:24px;border-radius:28px}
      .hero-panel{border-radius:30px}
      .hero-stats{grid-template-columns:1fr}
      .hero-actions .btn-rou,.watch-actions .btn-rou{width:100%}
      .trial-top{display:block}
      .age-chip{display:inline-flex;margin-top:12px}
      .track-scroll{grid-auto-columns:82%}
      .recommend-grid{gap:16px}
      .feature-reco{min-height:350px;padding:24px}
      .rank-item{grid-template-columns:38px 1fr}
      .rank-hot{grid-column:2}
      .zone-board{grid-template-columns:1fr}
      .vertical-feed{grid-template-columns:repeat(2,1fr)}
      .invite-panel{padding:20px;border-radius:28px}
      .invite-steps{grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr;gap:8px}
      .news-item i{display:none}
      .watch-panel{padding:22px;border-radius:28px}
      .access-card{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .navbar-brand span{font-size:16px}
      .navbar-brand small{font-size:11px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      h1.hero-title{font-size:32px}
      .hero-intro{font-size:16px}
      .trial-card{padding:18px;border-radius:24px}
      .vertical-feed{grid-template-columns:1fr}
      .vertical-card{min-height:260px}
      .feature-reco h3{font-size:27px}
      .section-title{font-size:27px}
      .btn-rou{padding:11px 15px}
    }