/* roulang page: index */
:root{
      --bg:#061221;
      --bg-2:#091b31;
      --panel:rgba(13, 34, 58, .72);
      --panel-strong:rgba(17, 45, 78, .92);
      --glass:rgba(255,255,255,.08);
      --glass-2:rgba(255,255,255,.12);
      --text:#f2f7ff;
      --muted:#a9bad0;
      --weak:#7588a1;
      --primary:#38bdf8;
      --primary-2:#2dd4bf;
      --accent:#f9c74f;
      --danger:#fb7185;
      --success:#5eead4;
      --border:rgba(174,213,255,.16);
      --border-strong:rgba(125,211,252,.38);
      --shadow:0 24px 80px rgba(0,0,0,.36);
      --shadow-soft:0 16px 40px rgba(0,0,0,.22);
      --radius:24px;
      --radius-sm:16px;
      --radius-xs:12px;
      --container:1180px;
      --nav-height:76px;
      --font:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 10%, rgba(56,189,248,.22), transparent 34%),
        radial-gradient(circle at 88% 6%, rgba(45,212,191,.16), transparent 30%),
        radial-gradient(circle at 55% 75%, rgba(249,199,79,.08), transparent 28%),
        linear-gradient(180deg,#04101e 0%,#061221 48%,#081426 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease,transform .2s ease}
    a:hover{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(56,189,248,.35);color:#fff}
    .container-xl{max-width:var(--container)}
    .section{
      position:relative;
      padding:96px 0;
    }
    .section-tight{padding:72px 0}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--border-strong);
      border-radius:999px;
      background:rgba(56,189,248,.09);
      color:#bceeff;
      font-size:14px;
      font-weight:700;
      letter-spacing:.04em;
      margin-bottom:14px;
    }
    .section-title{
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      margin:0 0 16px;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .section-desc{
      max-width:760px;
      color:var(--muted);
      font-size:17px;
      margin:0 0 34px;
    }
    .text-gradient{
      background:linear-gradient(90deg,#fff 0%,#b9ecff 50%,#5eead4 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:blur(18px);
      background:rgba(4,16,30,.78);
      border-bottom:1px solid var(--border);
      box-shadow:0 12px 36px rgba(0,0,0,.22);
    }
    .navbar{
      min-height:var(--nav-height);
      padding:12px 0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:var(--text);
      font-weight:900;
      letter-spacing:-.02em;
      max-width:360px;
      white-space:normal;
      line-height:1.2;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,rgba(56,189,248,.95),rgba(45,212,191,.88));
      color:#03111f;
      box-shadow:0 0 34px rgba(56,189,248,.46);
      flex:0 0 auto;
    }
    .navbar-brand:hover{color:#fff}
    .navbar-toggler{
      border:1px solid var(--border);
      border-radius:14px;
      padding:9px 11px;
      color:var(--text);
      background:rgba(255,255,255,.06);
    }
    .navbar-toggler:focus{
      box-shadow:0 0 0 4px rgba(56,189,248,.18);
    }
    .navbar-nav .nav-link{
      color:var(--muted);
      font-weight:800;
      padding:10px 15px;
      border-radius:999px;
      margin:0 3px;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active{
      color:var(--text);
      background:rgba(56,189,248,.12);
    }
    .nav-search{
      min-width:230px;
      position:relative;
    }
    .nav-search input{
      width:100%;
      color:var(--text);
      background:rgba(255,255,255,.07);
      border:1px solid var(--border);
      border-radius:999px;
      padding:10px 42px 10px 16px;
      outline:none;
      transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
    }
    .nav-search input::placeholder{color:rgba(169,186,208,.74)}
    .nav-search input:focus{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(56,189,248,.14);
      background:rgba(255,255,255,.1);
    }
    .nav-search button{
      position:absolute;
      right:5px;
      top:5px;
      width:34px;
      height:34px;
      border:0;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#03111f;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border:1px solid rgba(94,234,212,.45);
      background:rgba(94,234,212,.12);
      color:#dbfffb;
      border-radius:999px;
      padding:10px 16px;
      font-weight:900;
    }
    .nav-cta:hover{
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 0 28px rgba(45,212,191,.22);
    }
    .step-strip{
      border-top:1px solid rgba(255,255,255,.06);
      background:rgba(2,10,20,.24);
      overflow-x:auto;
      scrollbar-width:none;
    }
    .step-strip::-webkit-scrollbar{display:none}
    .step-list{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
      padding:10px 0 13px;
    }
    .step-link{
      display:flex;
      align-items:center;
      gap:9px;
      color:var(--muted);
      font-size:14px;
      font-weight:800;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid transparent;
      background:rgba(255,255,255,.04);
    }
    .step-no{
      width:24px;
      height:24px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#02111d;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      font-size:12px;
      box-shadow:0 0 18px rgba(56,189,248,.32);
    }
    .step-link:hover,
    .step-link.active{
      color:#fff;
      border-color:var(--border-strong);
      background:rgba(56,189,248,.12);
    }
    .btn-glow{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 20px;
      border:0;
      border-radius:999px;
      color:#03111f;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      font-weight:900;
      box-shadow:0 0 32px rgba(56,189,248,.38), inset 0 1px 0 rgba(255,255,255,.35);
      transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
    }
    .btn-glow:hover{
      color:#03111f;
      transform:translateY(-2px);
      filter:saturate(1.08);
      box-shadow:0 0 44px rgba(56,189,248,.52),0 16px 36px rgba(0,0,0,.24);
    }
    .btn-ghost{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:12px 19px;
      border-radius:999px;
      border:1px solid var(--border-strong);
      background:rgba(255,255,255,.07);
      color:#eaf7ff;
      font-weight:900;
      transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .btn-ghost:hover{
      color:#fff;
      transform:translateY(-2px);
      background:rgba(56,189,248,.13);
      border-color:rgba(94,234,212,.62);
      box-shadow:0 14px 34px rgba(0,0,0,.22);
    }
    .btn-mini{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      font-weight:900;
      font-size:14px;
      color:#061221;
      background:var(--accent);
    }
    .btn-mini:hover{color:#061221;transform:translateY(-1px)}
    .glass-card{
      border:1px solid var(--border);
      border-radius:var(--radius);
      background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.055));
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(18px);
    }
    .hero{
      padding:84px 0 48px;
    }
    .hero-stage{
      position:relative;
      overflow:hidden;
      min-height:560px;
      border:1px solid rgba(125,211,252,.24);
      border-radius:36px;
      background:
        linear-gradient(120deg,rgba(6,18,33,.68),rgba(12,38,67,.72)),
        radial-gradient(circle at 16% 22%,rgba(56,189,248,.28),transparent 32%),
        radial-gradient(circle at 82% 20%,rgba(45,212,191,.22),transparent 30%);
      box-shadow:var(--shadow);
      padding:clamp(26px,5vw,58px);
    }
    .hero-stage:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent),
        repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0,rgba(255,255,255,.045) 1px,transparent 1px,transparent 84px);
      mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:28px;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      min-height:450px;
    }
    .hero-badge-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:18px;
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid var(--border);
      color:#caedff;
      background:rgba(255,255,255,.065);
      font-size:13px;
      font-weight:800;
    }
    h1{
      font-size:clamp(36px,6vw,68px);
      line-height:1.05;
      letter-spacing:-.065em;
      font-weight:950;
      margin:0 0 20px;
    }
    .hero-desc{
      max-width:760px;
      color:#c4d5e8;
      font-size:18px;
      margin:0 0 28px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-bottom:28px;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      max-width:680px;
    }
    .metric-card{
      border:1px solid rgba(255,255,255,.12);
      border-radius:18px;
      background:rgba(255,255,255,.065);
      padding:14px 15px;
    }
    .metric-value{
      display:block;
      color:#fff;
      font-size:24px;
      font-weight:950;
      letter-spacing:-.03em;
      line-height:1.1;
    }
    .metric-label{
      display:block;
      color:var(--muted);
      font-size:13px;
      margin-top:5px;
    }
    .group-panel{
      align-self:center;
      position:relative;
      overflow:hidden;
      border-radius:30px;
      padding:24px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,.065)),
        radial-gradient(circle at 20% 0%,rgba(249,199,79,.16),transparent 36%);
      border:1px solid rgba(255,255,255,.16);
      box-shadow:0 24px 70px rgba(0,0,0,.34);
    }
    .group-panel:after{
      content:"";
      position:absolute;
      width:170px;
      height:170px;
      right:-70px;
      bottom:-70px;
      background:rgba(56,189,248,.22);
      filter:blur(6px);
      border-radius:50%;
    }
    .group-top{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:flex-start;
      margin-bottom:20px;
      position:relative;
      z-index:1;
    }
    .group-title{
      margin:0;
      font-size:22px;
      font-weight:950;
      line-height:1.25;
    }
    .count-pill{
      flex:0 0 auto;
      color:#061221;
      background:var(--accent);
      padding:7px 10px;
      border-radius:999px;
      font-size:13px;
      font-weight:950;
      box-shadow:0 0 24px rgba(249,199,79,.24);
    }
    .team-circles{
      display:flex;
      align-items:center;
      margin:14px 0 18px;
      position:relative;
      z-index:1;
    }
    .team-circles span{
      width:40px;
      height:40px;
      display:grid;
      place-items:center;
      margin-right:-9px;
      border-radius:50%;
      border:2px solid rgba(6,18,33,.72);
      color:#04101e;
      font-weight:950;
      background:linear-gradient(135deg,#e0f7ff,#5eead4);
    }
    .team-circles span.empty{
      color:#9eb4ca;
      background:rgba(255,255,255,.08);
      border:1px dashed rgba(174,213,255,.36);
    }
    .progress-wrap{
      position:relative;
      z-index:1;
      margin:10px 0 18px;
    }
    .progress-label{
      display:flex;
      justify-content:space-between;
      color:#cfe8f7;
      font-size:13px;
      font-weight:800;
      margin-bottom:8px;
    }
    .progress{
      height:12px;
      border-radius:999px;
      background:rgba(255,255,255,.1);
      overflow:visible;
    }
    .progress-bar{
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--primary-2),var(--accent));
      box-shadow:0 0 24px rgba(56,189,248,.45);
    }
    .group-list{
      position:relative;
      z-index:1;
      padding:0;
      margin:18px 0 0;
      list-style:none;
      display:grid;
      gap:10px;
      color:#d9ebf6;
    }
    .group-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .group-list i{color:var(--success);margin-top:4px}
    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1.45fr) minmax(300px,.75fr);
      gap:24px;
      align-items:start;
    }
    .news-list{
      padding:10px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      padding:18px;
      border-radius:18px;
      border:1px solid transparent;
      transition:background .2s ease,border-color .2s ease,transform .2s ease;
    }
    .news-item + .news-item{border-top:1px solid rgba(255,255,255,.07)}
    .news-item:hover{
      background:rgba(56,189,248,.075);
      border-color:rgba(125,211,252,.18);
      transform:translateX(3px);
    }
    .news-date{
      width:58px;
      height:58px;
      border-radius:16px;
      display:grid;
      place-items:center;
      text-align:center;
      line-height:1.05;
      color:#061221;
      background:linear-gradient(135deg,#e1f6ff,var(--primary));
      font-weight:950;
      box-shadow:0 0 22px rgba(56,189,248,.24);
    }
    .news-date small{display:block;font-size:11px}
    .news-title{
      margin:0 0 4px;
      font-size:18px;
      font-weight:950;
    }
    .news-summary{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.55;
    }
    .news-arrow{
      width:34px;
      height:34px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#beeaff;
      background:rgba(255,255,255,.07);
      border:1px solid var(--border);
    }
    .recommend-card{
      padding:24px;
      position:sticky;
      top:118px;
    }
    .recommend-title{
      margin:0 0 16px;
      font-size:22px;
      font-weight:950;
    }
    .rank-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .rank-list li{
      display:grid;
      grid-template-columns:34px 1fr auto;
      gap:12px;
      align-items:center;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.08);
    }
    .rank-no{
      width:34px;
      height:34px;
      border-radius:12px;
      display:grid;
      place-items:center;
      color:#061221;
      background:var(--accent);
      font-weight:950;
    }
    .rank-name{font-weight:900;line-height:1.25}
    .rank-meta{display:block;color:var(--weak);font-size:12px;margin-top:3px}
    .rank-hot{
      color:#bff7ff;
      font-size:13px;
      font-weight:900;
    }
    .service-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
      margin-bottom:26px;
    }
    .feature-card{
      padding:22px;
      min-height:210px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .feature-card:hover{
      transform:translateY(-6px);
      border-color:rgba(94,234,212,.34);
      background:linear-gradient(180deg,rgba(56,189,248,.14),rgba(255,255,255,.06));
      box-shadow:0 24px 50px rgba(0,0,0,.28);
    }
    .feature-icon{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      margin-bottom:16px;
      color:#061221;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      font-size:22px;
      box-shadow:0 0 28px rgba(56,189,248,.28);
    }
    .feature-card h3{
      font-size:19px;
      font-weight:950;
      margin:0 0 10px;
    }
    .feature-card p{
      color:var(--muted);
      font-size:14px;
      margin:0;
      line-height:1.65;
    }
    .invite-board{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:20px;
      padding:24px;
      overflow:hidden;
    }
    .invite-board h3{
      font-size:26px;
      font-weight:950;
      margin:0 0 12px;
    }
    .invite-board p{
      color:var(--muted);
      margin:0 0 18px;
    }
    .reward-steps{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .reward-step{
      display:flex;
      align-items:center;
      gap:12px;
      padding:13px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.055);
    }
    .reward-step b{
      flex:0 0 auto;
      width:34px;
      height:34px;
      border-radius:12px;
      display:grid;
      place-items:center;
      color:#061221;
      background:#dff7ff;
    }
    .reward-step span{
      color:#d9eaf7;
      font-weight:800;
    }
    .leader-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0 10px;
    }
    .leader-table th{
      color:var(--weak);
      font-size:13px;
      font-weight:800;
      padding:0 10px 3px;
    }
    .leader-table td{
      padding:13px 10px;
      background:rgba(255,255,255,.06);
      border-top:1px solid rgba(255,255,255,.08);
      border-bottom:1px solid rgba(255,255,255,.08);
      color:#ddebff;
      font-weight:800;
    }
    .leader-table td:first-child{
      border-left:1px solid rgba(255,255,255,.08);
      border-radius:14px 0 0 14px;
    }
    .leader-table td:last-child{
      border-right:1px solid rgba(255,255,255,.08);
      border-radius:0 14px 14px 0;
      color:var(--success);
    }
    .category-scroll{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:6px 2px 18px;
      scroll-snap-type:x mandatory;
      scrollbar-color:rgba(56,189,248,.6) rgba(255,255,255,.08);
    }
    .category-card{
      flex:0 0 260px;
      scroll-snap-align:start;
      padding:22px;
      min-height:190px;
      position:relative;
      overflow:hidden;
      transition:transform .22s ease,border-color .22s ease;
    }
    .category-card:after{
      content:"";
      position:absolute;
      width:86px;
      height:86px;
      right:-26px;
      bottom:-24px;
      border-radius:50%;
      background:rgba(56,189,248,.14);
    }
    .category-card:hover{
      transform:translateY(-5px);
      border-color:rgba(56,189,248,.38);
    }
    .category-card h3{
      margin:14px 0 8px;
      font-size:20px;
      font-weight:950;
    }
    .category-card p{
      color:var(--muted);
      margin:0;
      font-size:14px;
      line-height:1.65;
    }
    .category-chip{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      color:#dff8ff;
      background:rgba(56,189,248,.12);
      border:1px solid rgba(125,211,252,.2);
      font-size:13px;
      font-weight:900;
    }
    .app-panel{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:center;
      padding:30px;
      overflow:hidden;
    }
    .app-visual{
      position:relative;
      min-height:340px;
      border-radius:28px;
      background:
        radial-gradient(circle at 30% 20%,rgba(56,189,248,.32),transparent 34%),
        linear-gradient(150deg,rgba(255,255,255,.12),rgba(255,255,255,.05));
      border:1px solid rgba(255,255,255,.12);
      display:grid;
      place-items:center;
      padding:24px;
    }
    .app-ring{
      width:min(290px,80vw);
      aspect-ratio:1;
      border-radius:50%;
      border:1px solid rgba(125,211,252,.24);
      display:grid;
      place-items:center;
      box-shadow:inset 0 0 60px rgba(56,189,248,.1),0 0 50px rgba(56,189,248,.14);
    }
    .app-core{
      width:176px;
      height:176px;
      border-radius:44px;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#04101e;
      display:grid;
      place-items:center;
      text-align:center;
      font-weight:950;
      line-height:1.25;
      box-shadow:0 0 44px rgba(56,189,248,.44);
      transform:rotate(-6deg);
    }
    .app-floating{
      position:absolute;
      display:flex;
      align-items:center;
      gap:8px;
      padding:10px 12px;
      border-radius:999px;
      background:rgba(6,18,33,.72);
      border:1px solid rgba(255,255,255,.12);
      color:#e8f7ff;
      font-weight:900;
      box-shadow:0 16px 36px rgba(0,0,0,.26);
    }
    .app-floating.one{top:30px;left:24px}
    .app-floating.two{right:22px;bottom:34px}
    .app-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
      margin:22px 0;
    }
    .app-list-item{
      padding:15px;
      border-radius:18px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.09);
    }
    .app-list-item b{
      display:block;
      margin-bottom:4px;
      color:#fff;
    }
    .app-list-item span{
      color:var(--muted);
      font-size:14px;
    }
    .faq-wrap{
      max-width:920px;
      margin:0 auto;
    }
    .accordion{
      display:grid;
      gap:14px;
    }
    .accordion-item{
      color:var(--text);
      border:1px solid var(--border);
      border-radius:18px !important;
      background:rgba(255,255,255,.06);
      overflow:hidden;
      box-shadow:0 12px 28px rgba(0,0,0,.12);
    }
    .accordion-button{
      color:#f4f9ff;
      background:rgba(255,255,255,.05);
      font-weight:950;
      font-size:17px;
      padding:18px 20px;
      border:0;
      box-shadow:none !important;
    }
    .accordion-button:not(.collapsed){
      color:#fff;
      background:linear-gradient(90deg,rgba(56,189,248,.16),rgba(45,212,191,.09));
    }
    .accordion-button:after{
      filter:invert(1) brightness(2);
    }
    .accordion-button:focus{
      box-shadow:0 0 0 4px rgba(56,189,248,.13) !important;
    }
    .accordion-body{
      color:var(--muted);
      padding:0 20px 20px;
      font-size:15px;
      line-height:1.85;
    }
    .about-grid{
      display:grid;
      grid-template-columns:.88fr 1.12fr;
      gap:24px;
      align-items:start;
    }
    .about-card{
      padding:26px;
    }
    .about-card h3{
      font-size:26px;
      font-weight:950;
      margin:0 0 12px;
    }
    .about-card p{
      color:var(--muted);
      margin:0 0 18px;
    }
    .trust-list{
      display:grid;
      gap:12px;
      padding:0;
      margin:0;
      list-style:none;
    }
    .trust-list li{
      display:flex;
      gap:12px;
      padding:13px;
      border-radius:16px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.08);
    }
    .trust-list i{
      color:var(--success);
      margin-top:4px;
    }
    .compare-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border-radius:22px;
      border:1px solid var(--border);
    }
    .compare-table th,
    .compare-table td{
      padding:16px;
      border-bottom:1px solid rgba(255,255,255,.08);
      color:#dcecf8;
      vertical-align:middle;
    }
    .compare-table th{
      color:#fff;
      background:rgba(56,189,248,.13);
      font-weight:950;
    }
    .compare-table tr:last-child td{border-bottom:0}
    .compare-table td:nth-child(2){
      color:#dffff9;
      font-weight:900;
      background:rgba(94,234,212,.055);
    }
    .compare-table td:nth-child(3){
      color:#9fb2c6;
    }
    .cta-band{
      margin-top:24px;
      padding:22px;
      border-radius:24px;
      border:1px solid rgba(94,234,212,.26);
      background:linear-gradient(90deg,rgba(56,189,248,.16),rgba(45,212,191,.1));
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
    }
    .cta-band strong{
      font-size:20px;
      display:block;
      margin-bottom:2px;
    }
    .cta-band span{color:var(--muted)}
    .site-footer{
      border-top:1px solid var(--border);
      background:rgba(3,12,23,.78);
      padding:46px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      margin-bottom:28px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      font-size:20px;
      margin-bottom:12px;
    }
    .footer-desc{
      color:var(--muted);
      max-width:560px;
      margin:0;
      font-size:14px;
    }
    .footer-title{
      color:#fff;
      font-size:15px;
      font-weight:950;
      margin:0 0 12px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:9px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-links a:hover{color:#fff}
    .copyright{
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color:var(--weak);
      font-size:13px;
    }
    .toast-note{
      position:fixed;
      left:50%;
      bottom:24px;
      transform:translateX(-50%) translateY(20px);
      padding:12px 16px;
      border-radius:999px;
      background:rgba(5,18,33,.92);
      border:1px solid rgba(94,234,212,.32);
      color:#eafffb;
      box-shadow:0 18px 40px rgba(0,0,0,.32);
      opacity:0;
      pointer-events:none;
      transition:opacity .2s ease,transform .2s ease;
      z-index:1100;
    }
    .toast-note.show{
      opacity:1;
      transform:translateX(-50%) translateY(0);
    }
    @media (max-width:1024px){
      .hero-content,
      .invite-board,
      .app-panel,
      .about-grid,
      .news-layout{
        grid-template-columns:1fr;
      }
      .hero-copy{min-height:auto}
      .recommend-card{position:relative;top:auto}
      .service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      :root{--nav-height:66px}
      .section{padding:72px 0}
      .hero{padding:54px 0 34px}
      .hero-stage{border-radius:26px;padding:24px}
      .hero-metrics{grid-template-columns:1fr}
      .group-top{flex-direction:column}
      .nav-search{min-width:100%;margin:12px 0}
      .navbar-collapse{
        padding:12px 0 8px;
      }
      .nav-cta{justify-content:center;margin-top:6px}
      .news-item{
        grid-template-columns:auto 1fr;
      }
      .news-arrow{display:none}
      .service-grid{grid-template-columns:1fr}
      .app-list{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .compare-table th,
      .compare-table td{padding:13px 12px;font-size:14px}
    }
    @media (max-width:520px){
      .navbar-brand{font-size:16px;max-width:260px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      h1{font-size:34px;letter-spacing:-.045em}
      .hero-actions .btn-glow,
      .hero-actions .btn-ghost{width:100%}
      .section-title{font-size:27px}
      .section-desc{font-size:15px}
      .group-panel,
      .invite-board,
      .app-panel,
      .about-card{padding:18px;border-radius:22px}
      .category-card{flex-basis:238px}
      .app-floating{position:static;margin:8px;justify-content:center}
      .app-visual{display:block;min-height:auto}
      .app-ring{margin:0 auto 14px}
      .copyright{display:block}
    }

/* 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}