/* roulang page: index */
:root{
      --bg:#070a13;
      --bg-soft:#0d1324;
      --panel:#111827;
      --panel-2:#151f35;
      --text:#eef2ff;
      --muted:#a7b0c4;
      --weak:#7f8aa3;
      --primary:#8b5cf6;
      --primary-2:#22d3ee;
      --accent:#fb7185;
      --success:#34d399;
      --warning:#fbbf24;
      --border:rgba(255,255,255,.11);
      --border-strong:rgba(255,255,255,.18);
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:32px;
      --shadow:0 18px 55px rgba(0,0,0,.35);
      --shadow-soft:0 12px 30px rgba(0,0,0,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      color:var(--text);
      font-family:Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      line-height:1.75;
      background:
        radial-gradient(circle at 8% 4%, rgba(34,211,238,.20), transparent 28%),
        radial-gradient(circle at 90% 10%, rgba(139,92,246,.24), transparent 32%),
        radial-gradient(circle at 50% 55%, rgba(251,113,133,.11), transparent 34%),
        linear-gradient(180deg, #070a13 0%, #0a1020 45%, #060913 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:46px 46px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.65), transparent 78%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(34,211,238,.35);color:#fff}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:linear-gradient(92deg, rgba(17,24,39,.96), rgba(88,28,135,.94) 45%, rgba(8,145,178,.92));
      border-bottom:1px solid rgba(255,255,255,.14);
      box-shadow:0 16px 45px rgba(0,0,0,.28);
      backdrop-filter:blur(18px);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#06111d;
      background:linear-gradient(135deg, #fff, #67e8f9 48%, #c4b5fd);
      box-shadow:0 12px 30px rgba(34,211,238,.28);
      font-weight:1000;
    }
    .brand-text{font-size:1.12rem}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:6px;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.08);
      border-radius:999px;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 18px;
      border-radius:999px;
      color:rgba(255,255,255,.86);
      font-size:.95rem;
      transition:background .2s ease, color .2s ease, transform .2s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:#fff;
      background:rgba(255,255,255,.16);
    }
    .nav-link:active{transform:translateY(1px)}
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      color:#07111f;
      font-weight:850;
      background:linear-gradient(135deg,#67e8f9,#f0f9ff 50%,#fbbf24);
      box-shadow:0 14px 34px rgba(34,211,238,.22);
      transition:transform .2s ease, box-shadow .2s ease, filter .2s ease;
      white-space:nowrap;
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(34,211,238,.32);filter:saturate(1.1)}
    .menu-btn{
      display:none;
      width:44px;
      height:44px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:14px;
      background:rgba(255,255,255,.1);
      color:#fff;
      align-items:center;
      justify-content:center;
    }
    .menu-btn span,.menu-btn span::before,.menu-btn span::after{
      display:block;
      width:20px;
      height:2px;
      border-radius:2px;
      background:#fff;
      content:"";
      transition:.2s ease;
    }
    .menu-btn span::before{transform:translateY(-7px)}
    .menu-btn span::after{transform:translateY(5px)}
    .menu-btn.is-open span{background:transparent}
    .menu-btn.is-open span::before{transform:rotate(45deg)}
    .menu-btn.is-open span::after{transform:rotate(-45deg) translate(1px,-1px)}
    .section{
      position:relative;
      padding:88px 0;
    }
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.14);
      color:#dbeafe;
      background:rgba(255,255,255,.07);
      font-size:.86rem;
      font-weight:750;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--primary-2);
      box-shadow:0 0 18px rgba(34,211,238,.9);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:32px;
      margin-bottom:28px;
    }
    .section-title{
      margin:14px 0 0;
      font-size:clamp(1.8rem, 3.1vw, 3rem);
      line-height:1.16;
      letter-spacing:-.04em;
      font-weight:950;
    }
    .section-desc{
      max-width:680px;
      color:var(--muted);
      margin:14px 0 0;
      font-size:1rem;
    }
    .hero{
      padding:78px 0 68px;
      overflow:hidden;
    }
    .hero-shell{
      position:relative;
      border-radius:38px;
      border:1px solid rgba(255,255,255,.16);
      background:
        linear-gradient(135deg, rgba(124,58,237,.28), rgba(34,211,238,.12) 55%, rgba(251,113,133,.18)),
        rgba(17,24,39,.78);
      box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
      overflow:hidden;
    }
    .hero-shell::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(circle at 20% 10%, rgba(255,255,255,.2), transparent 28%),
        radial-gradient(circle at 80% 70%, rgba(34,211,238,.24), transparent 26%);
      pointer-events:none;
    }
    .hero-top{
      position:relative;
      padding:52px clamp(22px, 5vw, 58px) 28px;
      display:grid;
      grid-template-columns:1.06fr .94fr;
      gap:30px;
      align-items:start;
    }
    .hero-copy h1{
      max-width:790px;
      margin:18px 0 18px;
      font-size:clamp(2.35rem, 5.4vw, 5.75rem);
      line-height:1.02;
      letter-spacing:-.07em;
      font-weight:1000;
    }
    .hero-copy p{
      max-width:760px;
      color:#d7def2;
      font-size:clamp(1rem, 1.35vw, 1.18rem);
      margin:0 0 24px;
    }
    .gradient-text{
      background:linear-gradient(135deg,#fff 5%,#67e8f9 38%,#c4b5fd 72%,#fda4af);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-top:26px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 20px;
      border:1px solid transparent;
      border-radius:999px;
      font-weight:850;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }
    .btn-primary{
      color:#07111f;
      background:linear-gradient(135deg,#67e8f9,#fff 52%,#fbbf24);
      box-shadow:0 18px 44px rgba(34,211,238,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 60px rgba(34,211,238,.34)}
    .btn-secondary{
      color:#fff;
      border-color:rgba(255,255,255,.18);
      background:rgba(255,255,255,.08);
    }
    .btn-secondary:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}
    .btn:focus-visible,.nav-link:focus-visible,.nav-cta:focus-visible,.menu-btn:focus-visible,input:focus-visible,textarea:focus-visible,button:focus-visible,a:focus-visible{
      outline:3px solid rgba(34,211,238,.42);
      outline-offset:3px;
    }
    .benefit-row{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:12px;
      margin-top:30px;
      max-width:830px;
    }
    .benefit-pill{
      min-height:72px;
      padding:14px 16px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:20px;
      background:rgba(7,10,19,.38);
      backdrop-filter:blur(12px);
    }
    .benefit-pill b{display:block;font-size:.98rem;color:#fff}
    .benefit-pill span{display:block;margin-top:2px;color:#aeb9d0;font-size:.88rem}
    .trial-panel{
      position:relative;
      padding:22px;
      border-radius:30px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(3,7,18,.42);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
    }
    .trial-grid{
      display:grid;
      grid-template-columns:repeat(2, 1fr);
      gap:12px;
      margin-top:16px;
    }
    .trial-badge{
      border:1px solid rgba(255,255,255,.14);
      border-radius:20px;
      padding:14px;
      background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
    }
    .trial-badge strong{
      display:block;
      color:#fff;
      font-size:1.02rem;
      margin-bottom:4px;
    }
    .trial-badge small{color:#aeb9d0}
    .qualification{
      margin-top:16px;
      padding:16px;
      border-radius:22px;
      background:rgba(34,211,238,.09);
      border:1px solid rgba(34,211,238,.22);
      color:#dffaff;
      font-size:.95rem;
    }
    .hero-bottom{
      position:relative;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:16px;
      padding:0 clamp(22px, 5vw, 58px) 42px;
    }
    .apply-strip{
      display:grid;
      grid-template-columns:1fr 1fr auto;
      gap:12px;
      align-items:center;
      padding:14px;
      border-radius:26px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
    }
    .form-field{
      width:100%;
      min-height:48px;
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
      border-radius:16px;
      background:rgba(3,7,18,.35);
      padding:0 14px;
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .form-field::placeholder{color:#8f9bb2}
    .form-field:focus{
      border-color:rgba(34,211,238,.5);
      background:rgba(3,7,18,.52);
      box-shadow:0 0 0 4px rgba(34,211,238,.12);
      outline:none;
    }
    .notice-line{
      display:flex;
      align-items:center;
      gap:10px;
      padding:16px;
      border-radius:26px;
      color:#dce6ff;
      background:rgba(3,7,18,.28);
      border:1px dashed rgba(255,255,255,.18);
    }
    .notice-dot{
      width:12px;height:12px;border-radius:999px;background:var(--success);
      box-shadow:0 0 20px rgba(52,211,153,.8);
      flex:0 0 auto;
    }
    .card{
      border:1px solid var(--border);
      border-radius:var(--radius);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.038));
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .card:hover{
      transform:translateY(-5px);
      border-color:rgba(34,211,238,.28);
      box-shadow:0 24px 70px rgba(0,0,0,.35);
      background:linear-gradient(180deg,rgba(255,255,255,.105),rgba(255,255,255,.045));
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:999px;
      padding:6px 10px;
      font-size:.82rem;
      color:#dbeafe;
      background:rgba(255,255,255,.07);
    }
    .badge.cyan{border-color:rgba(34,211,238,.28);background:rgba(34,211,238,.09)}
    .badge.pink{border-color:rgba(251,113,133,.3);background:rgba(251,113,133,.1)}
    .commission-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:20px;
    }
    .commission-main{
      padding:30px;
      min-height:390px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .commission-main::after{
      content:"";
      position:absolute;
      right:-120px;
      bottom:-120px;
      width:310px;
      height:310px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(34,211,238,.28), transparent 68%);
    }
    .big-number{
      display:flex;
      align-items:flex-end;
      gap:10px;
      margin-top:24px;
    }
    .big-number strong{
      font-size:clamp(3rem, 7vw, 6.7rem);
      line-height:.9;
      letter-spacing:-.08em;
      font-weight:1000;
      background:linear-gradient(135deg,#67e8f9,#fff,#fbbf24);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .big-number span{color:#bac5da;margin-bottom:12px}
    .commission-list{
      display:grid;
      gap:14px;
    }
    .mini-card{
      padding:20px;
      display:grid;
      grid-template-columns:auto 1fr;
      gap:14px;
      align-items:start;
    }
    .icon-box{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#07111f;
      background:linear-gradient(135deg,#67e8f9,#c4b5fd);
      font-weight:1000;
      flex:0 0 auto;
    }
    .mini-card h3,.material-card h3,.progress-card h3,.demo-panel h3,.social-card h3,.faq-item h3{
      margin:0;
      font-size:1.08rem;
      font-weight:900;
      color:#fff;
    }
    .mini-card p,.material-card p,.progress-card p,.demo-panel p,.social-card p{
      margin:6px 0 0;
      color:var(--muted);
      font-size:.95rem;
    }
    .material-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
      align-items:stretch;
    }
    .material-feature{
      padding:28px;
      min-height:360px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        linear-gradient(135deg,rgba(139,92,246,.18),rgba(34,211,238,.08)),
        linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
    }
    .material-stack{
      display:grid;
      gap:18px;
    }
    .material-card{
      padding:22px;
      min-height:171px;
    }
    .chips{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-top:22px;
    }
    .chip{
      padding:8px 11px;
      border-radius:999px;
      color:#dbeafe;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.07);
      font-size:.88rem;
    }
    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:20px;
    }
    .news-list{
      padding:10px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      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:hover{
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.12);
      transform:translateX(3px);
    }
    .news-date{
      width:58px;
      height:58px;
      display:grid;
      place-items:center;
      border-radius:18px;
      color:#07111f;
      background:linear-gradient(135deg,#67e8f9,#c4b5fd);
      font-weight:1000;
      line-height:1.1;
    }
    .news-item h3{
      margin:0 0 4px;
      color:#fff;
      font-size:1.02rem;
      font-weight:900;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .arrow{
      color:#c4b5fd;
      font-weight:900;
      transition:transform .2s ease;
    }
    .news-item:hover .arrow{transform:translateX(4px)}
    .recommend{
      padding:24px;
      position:sticky;
      top:100px;
      align-self:start;
    }
    .recommend ul{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .recommend li{
      display:flex;
      gap:10px;
      color:#cdd7ec;
      font-size:.95rem;
    }
    .recommend li::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--warning);
      margin-top:11px;
      flex:0 0 auto;
    }
    .progress-wrap{
      display:grid;
      grid-template-columns:330px 1fr;
      gap:20px;
      align-items:stretch;
    }
    .progress-card{
      padding:26px;
    }
    .progress-bar{
      height:12px;
      border-radius:999px;
      background:rgba(255,255,255,.09);
      overflow:hidden;
      margin:22px 0 12px;
      border:1px solid rgba(255,255,255,.1);
    }
    .progress-fill{
      height:100%;
      width:78%;
      border-radius:999px;
      background:linear-gradient(90deg,#22d3ee,#8b5cf6,#fb7185);
      box-shadow:0 0 24px rgba(34,211,238,.44);
    }
    .task-list{
      display:grid;
      gap:12px;
    }
    .task-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:12px;
      padding:16px;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.045);
    }
    .check{
      width:28px;height:28px;border-radius:10px;display:grid;place-items:center;
      background:rgba(52,211,153,.16);
      color:#86efac;
      font-weight:1000;
    }
    .task-item b{display:block;color:#fff}
    .task-item span{display:block;color:var(--muted);font-size:.9rem;margin-top:2px}
    .reward{
      color:#67e8f9;
      font-weight:900;
      white-space:nowrap;
    }
    .demo-grid{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .demo-panel{
      padding:26px;
    }
    .demo-panel.large{grid-column:span 7}
    .demo-panel.side{grid-column:span 5}
    .steps{
      margin-top:22px;
      display:grid;
      gap:14px;
    }
    .step{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:13px;
      align-items:start;
    }
    .step-num{
      width:42px;height:42px;border-radius:15px;display:grid;place-items:center;
      background:rgba(34,211,238,.1);
      border:1px solid rgba(34,211,238,.22);
      color:#67e8f9;
      font-weight:1000;
    }
    .step b{display:block;color:#fff}
    .step span{display:block;color:var(--muted);font-size:.94rem;margin-top:2px}
    .signal-board{
      margin-top:18px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .signal{
      border-radius:18px;
      padding:16px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.1);
    }
    .signal strong{display:block;color:#fff;font-size:1.35rem;line-height:1}
    .signal span{display:block;color:var(--muted);font-size:.88rem;margin-top:8px}
    .social-grid{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
    }
    .social-card{
      padding:24px;
    }
    .stars{
      letter-spacing:2px;
      color:#fbbf24;
      font-size:1.1rem;
      margin-bottom:10px;
    }
    .logo-wall{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
      margin-top:22px;
    }
    .logo-tile{
      min-height:58px;
      display:grid;
      place-items:center;
      border-radius:18px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.1);
      color:#dbeafe;
      font-weight:850;
      font-size:.9rem;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:20px;
      align-items:start;
    }
    .faq-aside{
      padding:26px;
      position:sticky;
      top:100px;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border-radius:22px;
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      padding:20px 22px;
      color:#fff;
      background:transparent;
      border:0;
      text-align:left;
      font-weight:900;
    }
    .faq-question .plus{
      width:30px;height:30px;border-radius:999px;display:grid;place-items:center;
      background:rgba(255,255,255,.08);
      color:#67e8f9;
      flex:0 0 auto;
      transition:transform .2s ease, background .2s ease;
    }
    .faq-answer{
      display:none;
      padding:0 22px 20px;
      color:var(--muted);
      font-size:.96rem;
    }
    .faq-item.is-open .faq-answer{display:block}
    .faq-item.is-open .plus{transform:rotate(45deg);background:rgba(34,211,238,.14)}
    .join{
      padding:0 0 92px;
    }
    .join-card{
      position:relative;
      overflow:hidden;
      border-radius:38px;
      border:1px solid rgba(255,255,255,.16);
      background:
        radial-gradient(circle at 12% 18%, rgba(34,211,238,.22), transparent 30%),
        radial-gradient(circle at 84% 65%, rgba(251,113,133,.2), transparent 28%),
        linear-gradient(135deg, rgba(139,92,246,.34), rgba(17,24,39,.92));
      box-shadow:var(--shadow);
      padding:38px;
      display:grid;
      grid-template-columns:1fr 420px;
      gap:28px;
      align-items:center;
    }
    .join-card h2{
      margin:14px 0;
      font-size:clamp(2rem, 4vw, 4rem);
      line-height:1.06;
      letter-spacing:-.055em;
      font-weight:1000;
    }
    .join-card p{color:#d8e2f4;max-width:700px;margin:0}
    .join-form{
      padding:20px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.15);
      background:rgba(3,7,18,.34);
    }
    .join-form label{
      display:block;
      color:#dbeafe;
      font-size:.88rem;
      margin:0 0 7px;
      font-weight:750;
    }
    .join-form .form-field{margin-bottom:12px}
    textarea.form-field{
      min-height:96px;
      padding-top:12px;
      resize:vertical;
    }
    .toast{
      position:fixed;
      left:50%;
      bottom:22px;
      transform:translateX(-50%) translateY(16px);
      opacity:0;
      pointer-events:none;
      padding:13px 18px;
      border-radius:999px;
      color:#07111f;
      background:linear-gradient(135deg,#67e8f9,#fff);
      box-shadow:0 16px 40px rgba(34,211,238,.25);
      font-weight:850;
      transition:opacity .2s ease, transform .2s ease;
      z-index:80;
      max-width:calc(100% - 40px);
      text-align:center;
    }
    .toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
    .site-footer{
      border-top:1px solid rgba(255,255,255,.1);
      background:rgba(3,7,18,.45);
      padding:42px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:24px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:1000;
      font-size:1.15rem;
    }
    .footer-text{
      color:var(--muted);
      margin:14px 0 0;
      max-width:520px;
      font-size:.95rem;
    }
    .footer-col h3{
      margin:0 0 12px;
      color:#fff;
      font-size:1rem;
      font-weight:900;
    }
    .footer-col p,.footer-col a{
      display:block;
      color:var(--muted);
      font-size:.94rem;
      margin:8px 0;
      transition:color .2s ease, transform .2s ease;
    }
    .footer-col a:hover{
      color:#67e8f9;
      transform:translateX(3px);
    }
    .copyright{
      margin-top:32px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:#7f8aa3;
      font-size:.9rem;
    }
    @media (max-width:1024px){
      .hero-top,.hero-bottom,.commission-layout,.material-grid,.news-layout,.progress-wrap,.faq-grid,.join-card{
        grid-template-columns:1fr;
      }
      .recommend,.faq-aside{position:relative;top:auto}
      .demo-panel.large,.demo-panel.side{grid-column:span 12}
      .join-card{padding:30px}
      .section-head{align-items:start;flex-direction:column}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--container))}
      .site-header{position:sticky}
      .nav-wrap{min-height:68px}
      .menu-btn{display:flex}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:76px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:10px;
        background:rgba(17,24,39,.96);
        box-shadow:0 24px 60px rgba(0,0,0,.35);
      }
      .nav-links.is-open{display:flex}
      .nav-link{justify-content:center}
      .nav-cta{display:none}
      .hero{padding-top:36px}
      .hero-shell,.join-card{border-radius:28px}
      .hero-top{padding:32px 18px 20px}
      .hero-bottom{padding:0 18px 24px}
      .benefit-row,.trial-grid,.apply-strip,.social-grid,.footer-grid,.logo-wall{
        grid-template-columns:1fr;
      }
      .section{padding:62px 0}
      .news-item{grid-template-columns:auto 1fr}
      .news-item .arrow{display:none}
      .task-item{grid-template-columns:auto 1fr}
      .reward{grid-column:2}
      .join-form{padding:16px}
    }
    @media (max-width:520px){
      body{line-height:1.68}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .hero-copy h1{font-size:2.25rem}
      .hero-actions .btn{width:100%}
      .trial-panel{padding:16px;border-radius:24px}
      .commission-main,.material-feature,.progress-card,.demo-panel,.social-card,.faq-aside{padding:20px}
      .big-number{align-items:flex-start;flex-direction:column}
      .big-number span{margin-bottom:0}
      .signal-board{grid-template-columns:1fr}
      .copyright{display:block}
    }