/* roulang page: index */
:root{
      --bg:#0b0713;
      --bg-soft:#140d24;
      --bg-card:#1d1232;
      --bg-card-2:#25163d;
      --text:#fff7ed;
      --text-strong:#ffffff;
      --muted:#c8b8d8;
      --muted-2:#8f7da4;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(255,255,255,.22);
      --primary:#ff3d6e;
      --primary-2:#ff8a00;
      --accent:#7c3cff;
      --cyan:#36e1ff;
      --green:#62f5a1;
      --warning:#ffd166;
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:32px;
      --shadow:0 20px 70px rgba(0,0,0,.36);
      --shadow-glow:0 20px 80px rgba(255,61,110,.22);
      --container:1160px;
      --nav-h:76px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.65;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(255,61,110,.28), transparent 34%),
        radial-gradient(circle at 88% 16%, rgba(124,60,255,.34), transparent 30%),
        radial-gradient(circle at 55% 100%, rgba(54,225,255,.13), transparent 32%),
        linear-gradient(180deg,#090511 0%,#130b22 44%,#0b0713 100%);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(255,61,110,.45);color:#fff}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      height:var(--nav-h);
      backdrop-filter:blur(18px);
      background:rgba(11,7,19,.72);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      height:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:.02em;
      color:#fff;
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        radial-gradient(circle at 65% 20%, #fff 0 6%, transparent 7%),
        linear-gradient(135deg,var(--primary),var(--primary-2) 55%,var(--accent));
      box-shadow:0 12px 30px rgba(255,61,110,.28);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:after{
      content:"";
      width:16px;height:16px;
      border:3px solid rgba(255,255,255,.9);
      border-left-color:transparent;
      border-bottom-color:transparent;
      transform:rotate(45deg);
      border-radius:4px;
    }
    .brand-text{font-size:20px}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:7px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.05);
    }
    .nav-link{
      padding:9px 18px;
      border-radius:999px;
      color:var(--muted);
      font-weight:700;
      transition:color .22s ease, background .22s ease, transform .22s ease;
    }
    .nav-link:hover,.nav-link:focus{
      color:#fff;
      background:rgba(255,255,255,.08);
      outline:none;
    }
    .nav-link.active{
      color:#14101a;
      background:linear-gradient(135deg,#fff,var(--warning));
      box-shadow:0 8px 24px rgba(255,209,102,.18);
    }
    .header-actions{display:flex;align-items:center;gap:10px}
    .nav-search{
      width:190px;
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 14px;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--muted-2);
      background:rgba(255,255,255,.05);
    }
    .nav-search input{
      width:100%;
      border:0;
      outline:0;
      color:#fff;
      background:transparent;
    }
    .nav-search input::placeholder{color:var(--muted-2)}
    .menu-btn{
      display:none;
      width:44px;height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:rgba(255,255,255,.06);
      color:#fff;
    }
    .menu-btn span{
      display:block;
      width:18px;height:2px;
      margin:5px auto;
      background:#fff;
      border-radius:999px;
      transition:transform .2s ease, opacity .2s ease;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      letter-spacing:.01em;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.98)}
    .btn:focus-visible{
      outline:3px solid rgba(54,225,255,.42);
      outline-offset:3px;
    }
    .btn-primary{
      color:#1a0b0f;
      background:linear-gradient(135deg,#ffd166 0%,#ff8a00 42%,#ff3d6e 100%);
      box-shadow:0 16px 34px rgba(255,61,110,.28);
    }
    .btn-primary:hover{box-shadow:0 22px 50px rgba(255,61,110,.38)}
    .btn-ghost{
      color:#fff;
      border-color:var(--line-strong);
      background:rgba(255,255,255,.07);
    }
    .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.36)}
    .btn-dark{
      color:#fff;
      background:#161020;
      border-color:rgba(255,255,255,.12);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid var(--line);
      color:#ffe6ef;
      background:rgba(255,255,255,.07);
      font-size:13px;
      font-weight:800;
    }
    .badge.hot{
      color:#21070d;
      border-color:transparent;
      background:linear-gradient(135deg,#fff,#ffd166);
    }
    .section{
      position:relative;
      padding:86px 0;
    }
    .section.compact{padding:58px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:12px;
      color:var(--warning);
      font-size:14px;
      font-weight:900;
      letter-spacing:.08em;
    }
    .section-title{
      margin:0;
      max-width:720px;
      color:#fff;
      font-size:clamp(28px,4vw,46px);
      line-height:1.12;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .section-desc{
      margin:12px 0 0;
      max-width:660px;
      color:var(--muted);
      font-size:16px;
    }
    .card{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.04));
      box-shadow:0 10px 38px rgba(0,0,0,.18);
      transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease, background .24s ease;
    }
    .card:hover{
      transform:translateY(-5px);
      border-color:rgba(255,255,255,.26);
      box-shadow:var(--shadow);
      background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.05));
    }
    .hero{
      padding:34px 0 76px;
    }
    .hero-stage{
      min-height:620px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:42px;
      overflow:hidden;
      position:relative;
      box-shadow:var(--shadow-glow);
      background:
        linear-gradient(115deg,rgba(255,61,110,.96) 0%,rgba(255,138,0,.86) 30%,rgba(124,60,255,.78) 61%,rgba(11,7,19,.93) 100%),
        url("data:image/svg+xml,%3Csvg width='900' height='520' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='rgba(255,255,255,.19)' stroke-width='2'%3E%3Cpath d='M40 420 C220 250,330 570,520 315 S760 80,880 195'/%3E%3Cpath d='M70 120 H840 M110 180 H780 M150 240 H860 M210 300 H740 M80 360 H820'/%3E%3C/g%3E%3Cg fill='rgba(255,255,255,.16)'%3E%3Ccircle cx='140' cy='110' r='8'/%3E%3Ccircle cx='775' cy='180' r='12'/%3E%3Ccircle cx='615' cy='390' r='10'/%3E%3C/g%3E%3C/svg%3E");
      background-size:cover;
      background-position:center;
    }
    .hero-stage:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 22% 18%,rgba(255,255,255,.26),transparent 28%),
        linear-gradient(90deg,rgba(11,7,19,.08),rgba(11,7,19,.58));
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      z-index:2;
      min-height:620px;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      align-items:center;
      gap:28px;
      padding:56px;
    }
    .hero-copy{
      max-width:700px;
    }
    .hero-kicker{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:18px;
    }
    .hero h1{
      margin:0;
      max-width:760px;
      color:#fff;
      font-size:clamp(42px,7vw,82px);
      line-height:.98;
      font-weight:1000;
      letter-spacing:-.07em;
      text-shadow:0 12px 34px rgba(0,0,0,.24);
    }
    .hero-intro{
      margin:22px 0 0;
      max-width:650px;
      color:#fff7ed;
      font-size:clamp(16px,2vw,20px);
      line-height:1.85;
      text-shadow:0 8px 20px rgba(0,0,0,.24);
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:14px;
      margin-top:30px;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:34px;
      max-width:680px;
    }
    .metric-pill{
      padding:16px;
      border:1px solid rgba(255,255,255,.20);
      border-radius:20px;
      background:rgba(12,6,18,.36);
      backdrop-filter:blur(14px);
    }
    .metric-pill strong{
      display:block;
      color:#fff;
      font-size:24px;
      line-height:1;
      font-weight:1000;
    }
    .metric-pill span{
      display:block;
      margin-top:7px;
      color:#ffe7d6;
      font-size:13px;
      font-weight:700;
    }
    .poster-stack{
      justify-self:end;
      width:min(430px,100%);
      position:relative;
      min-height:430px;
    }
    .poster{
      position:absolute;
      border:1px solid rgba(255,255,255,.20);
      border-radius:30px;
      overflow:hidden;
      background:linear-gradient(145deg,rgba(255,255,255,.20),rgba(255,255,255,.05));
      box-shadow:0 25px 70px rgba(0,0,0,.30);
      backdrop-filter:blur(12px);
    }
    .poster-main{
      inset:20px 14px auto auto;
      width:330px;
      height:420px;
      padding:22px;
      transform:rotate(2deg);
    }
    .poster-side{
      left:0;
      bottom:26px;
      width:220px;
      height:278px;
      padding:18px;
      transform:rotate(-8deg);
      background:linear-gradient(145deg,rgba(18,10,30,.78),rgba(255,255,255,.10));
    }
    .poster-ribbon{
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      color:#22080f;
      background:#ffd166;
      font-size:12px;
      font-weight:1000;
    }
    .poster-title{
      margin-top:18px;
      color:#fff;
      font-size:34px;
      line-height:1.05;
      font-weight:1000;
      letter-spacing:-.04em;
    }
    .poster-lines{
      margin-top:22px;
      display:grid;
      gap:10px;
    }
    .poster-lines i{
      display:block;
      height:12px;
      border-radius:999px;
      background:rgba(255,255,255,.22);
    }
    .poster-lines i:nth-child(1){width:82%}
    .poster-lines i:nth-child(2){width:62%}
    .poster-lines i:nth-child(3){width:74%}
    .poster-bottom{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .burst{
      position:absolute;
      z-index:4;
      top:34px;
      right:34px;
      width:128px;
      height:128px;
      display:grid;
      place-items:center;
      text-align:center;
      color:#1a0710;
      font-weight:1000;
      line-height:1.15;
      filter:drop-shadow(0 18px 26px rgba(0,0,0,.22));
      background:#fff;
      clip-path:polygon(50% 0%,60% 24%,85% 9%,78% 37%,100% 50%,76% 60%,91% 85%,63% 78%,50% 100%,40% 76%,15% 91%,22% 63%,0% 50%,24% 40%,9% 15%,37% 22%);
      transform:rotate(10deg);
    }
    .corner-tag{
      position:absolute;
      left:0;
      top:0;
      z-index:3;
      padding:13px 38px;
      color:#1b0710;
      background:#ffd166;
      font-weight:1000;
      transform:translate(-25px,24px) rotate(-35deg);
      box-shadow:0 12px 26px rgba(0,0,0,.18);
    }
    .steps-grid{
      display:grid;
      grid-template-columns:1fr 1.1fr 1fr;
      gap:18px;
      align-items:stretch;
    }
    .step-card{
      padding:26px;
    }
    .step-no{
      width:44px;height:44px;
      display:grid;
      place-items:center;
      border-radius:16px;
      color:#170812;
      background:linear-gradient(135deg,#fff,#ffd166);
      font-weight:1000;
      box-shadow:0 12px 28px rgba(255,209,102,.18);
    }
    .step-card h3,.group-card h3,.seed-card h3,.compare-card h3{
      margin:18px 0 8px;
      color:#fff;
      font-size:21px;
      line-height:1.25;
      font-weight:950;
    }
    .step-card p,.group-card p,.seed-card p,.compare-card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
    }
    .step-feature{
      padding:28px;
      border-radius:var(--radius);
      background:
        radial-gradient(circle at 16% 20%,rgba(54,225,255,.22),transparent 28%),
        linear-gradient(135deg,rgba(124,60,255,.38),rgba(255,61,110,.20));
    }
    .progress-bar{
      height:12px;
      overflow:hidden;
      border-radius:999px;
      background:rgba(255,255,255,.10);
    }
    .progress-bar span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg,var(--green),var(--cyan),var(--warning));
      box-shadow:0 0 24px rgba(54,225,255,.28);
    }
    .groups-grid{
      display:grid;
      grid-template-columns:1.25fr .9fr .9fr;
      gap:18px;
    }
    .group-card{
      padding:24px;
    }
    .group-card.featured{
      min-height:360px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 80% 18%,rgba(255,209,102,.35),transparent 28%),
        linear-gradient(145deg,rgba(255,61,110,.28),rgba(255,255,255,.06));
    }
    .group-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .price{
      margin:18px 0 8px;
      color:#fff;
      font-size:42px;
      line-height:1;
      font-weight:1000;
      letter-spacing:-.05em;
    }
    .price small{
      color:var(--muted);
      font-size:15px;
      font-weight:800;
    }
    .member-strip{
      display:flex;
      align-items:center;
      gap:8px;
      margin-top:20px;
    }
    .avatar{
      width:34px;height:34px;
      display:grid;
      place-items:center;
      border:2px solid rgba(255,255,255,.72);
      border-radius:50%;
      color:#1b0710;
      background:linear-gradient(135deg,#fff,#ffd166);
      font-size:12px;
      font-weight:1000;
      margin-left:-10px;
    }
    .avatar:first-child{margin-left:0}
    .info-layout{
      display:grid;
      grid-template-columns:minmax(0,1.25fr) minmax(290px,.75fr);
      gap:22px;
      align-items:start;
    }
    .news-list{
      display:grid;
      gap:12px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      padding:18px 20px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(255,255,255,.055);
      transition:transform .22s ease, background .22s ease, border-color .22s ease;
    }
    .news-item:hover{
      transform:translateX(5px);
      background:rgba(255,255,255,.09);
      border-color:rgba(255,255,255,.25);
    }
    .news-date{
      min-width:58px;
      color:var(--warning);
      font-size:13px;
      font-weight:900;
    }
    .news-title{
      color:#fff;
      font-weight:850;
      line-height:1.35;
    }
    .news-meta{
      color:var(--muted-2);
      font-size:13px;
      white-space:nowrap;
    }
    .recommend-box{
      padding:24px;
      position:sticky;
      top:96px;
    }
    .recommend-list{
      margin-top:16px;
      display:grid;
      gap:12px;
    }
    .recommend-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border-radius:15px;
      color:#fff;
      background:rgba(255,255,255,.06);
      transition:background .2s ease, transform .2s ease;
    }
    .recommend-list a:hover{
      transform:translateY(-2px);
      background:rgba(255,255,255,.11);
    }
    .campaign{
      overflow:hidden;
      border-radius:36px;
      border:1px solid var(--line);
      background:
        linear-gradient(90deg,rgba(255,61,110,.32),rgba(124,60,255,.18)),
        radial-gradient(circle at 85% 18%,rgba(255,209,102,.22),transparent 34%);
      box-shadow:var(--shadow);
    }
    .campaign-inner{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:20px;
      padding:34px;
    }
    .gift-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .gift{
      padding:18px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:20px;
      background:rgba(255,255,255,.07);
    }
    .gift strong{
      display:block;
      color:#fff;
      font-size:18px;
      font-weight:950;
    }
    .gift span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:14px;
    }
    .seed-scroll{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:4px 4px 14px;
      scroll-snap-type:x mandatory;
    }
    .seed-scroll::-webkit-scrollbar{height:8px}
    .seed-scroll::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:999px}
    .seed-card{
      flex:0 0 244px;
      min-height:360px;
      padding:18px;
      scroll-snap-align:start;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .seed-cover{
      height:168px;
      border-radius:20px;
      overflow:hidden;
      position:relative;
      background:
        linear-gradient(135deg,rgba(255,61,110,.88),rgba(124,60,255,.72)),
        repeating-linear-gradient(45deg,rgba(255,255,255,.12) 0 8px,transparent 8px 16px);
    }
    .seed-cover:after{
      content:"";
      position:absolute;
      inset:16px;
      border:1px solid rgba(255,255,255,.28);
      border-radius:16px;
    }
    .seed-cover b{
      position:absolute;
      left:18px;
      bottom:16px;
      color:#fff;
      font-size:28px;
      line-height:1;
      font-weight:1000;
    }
    .data-board{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:18px;
      align-items:stretch;
    }
    .score-panel{
      padding:28px;
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.05));
      border:1px solid var(--line);
    }
    .big-number{
      margin:10px 0;
      color:#fff;
      font-size:64px;
      line-height:1;
      font-weight:1000;
      letter-spacing:-.06em;
    }
    .compare-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
    }
    .compare-card{
      padding:22px;
    }
    .compare-tag{
      display:inline-flex;
      padding:6px 10px;
      border-radius:999px;
      color:#170812;
      background:linear-gradient(135deg,#fff,#62f5a1);
      font-size:12px;
      font-weight:1000;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:24px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    details{
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.055);
      overflow:hidden;
      transition:border-color .2s ease, background .2s ease;
    }
    details[open]{
      border-color:rgba(255,209,102,.34);
      background:rgba(255,255,255,.085);
    }
    summary{
      list-style:none;
      padding:18px 20px;
      cursor:pointer;
      color:#fff;
      font-weight:900;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;height:28px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#170812;
      background:#ffd166;
      font-weight:1000;
      flex:none;
    }
    details[open] summary:after{content:"−"}
    details p{
      margin:0;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:15px;
    }
    .form-section{
      padding-bottom:96px;
    }
    .form-shell{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:24px;
      align-items:stretch;
      padding:30px;
      border:1px solid rgba(255,255,255,.16);
      border-radius:38px;
      background:
        radial-gradient(circle at 15% 16%,rgba(54,225,255,.18),transparent 32%),
        linear-gradient(145deg,rgba(255,61,110,.22),rgba(255,255,255,.06));
      box-shadow:var(--shadow);
    }
    .form-card{
      padding:24px;
      border:1px solid var(--line);
      border-radius:28px;
      background:rgba(11,7,19,.48);
    }
    .form-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .field{
      display:grid;
      gap:8px;
    }
    .field.full{grid-column:1/-1}
    label{
      color:#fff;
      font-size:14px;
      font-weight:850;
    }
    input,select,textarea{
      width:100%;
      border:1px solid rgba(255,255,255,.16);
      border-radius:16px;
      padding:13px 14px;
      color:#fff;
      background:rgba(255,255,255,.07);
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    textarea{min-height:108px;resize:vertical}
    input::placeholder,textarea::placeholder{color:var(--muted-2)}
    input:focus,select:focus,textarea:focus{
      outline:none;
      border-color:rgba(54,225,255,.72);
      box-shadow:0 0 0 4px rgba(54,225,255,.12);
      background:rgba(255,255,255,.10);
    }
    .hint{
      color:var(--muted-2);
      font-size:13px;
    }
    .site-footer{
      border-top:1px solid var(--line);
      background:rgba(7,4,12,.72);
      padding:36px 0;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:end;
    }
    .footer-name{
      color:#fff;
      font-size:20px;
      font-weight:950;
    }
    .footer-text{
      margin:8px 0 0;
      color:var(--muted);
      max-width:620px;
      font-size:14px;
    }
    .footer-links{
      display:flex;
      justify-content:flex-end;
      flex-wrap:wrap;
      gap:10px;
    }
    .footer-links a{
      padding:9px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--muted);
      transition:color .2s ease, background .2s ease;
    }
    .footer-links a:hover{color:#fff;background:rgba(255,255,255,.08)}
    .copyright{
      margin-top:18px;
      padding-top:18px;
      border-top:1px solid var(--line);
      color:var(--muted-2);
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .floating-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      z-index:55;
      transform:translateX(-50%);
      width:min(720px,calc(100% - 28px));
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:10px 12px 10px 18px;
      border:1px solid rgba(255,255,255,.20);
      border-radius:999px;
      background:rgba(18,10,30,.86);
      backdrop-filter:blur(18px);
      box-shadow:0 16px 50px rgba(0,0,0,.32);
    }
    .floating-cta span{
      color:#fff;
      font-weight:850;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    @media (max-width:1024px){
      :root{--nav-h:72px}
      .container{width:min(100% - 32px,var(--container))}
      .hero-content{grid-template-columns:1fr;padding:42px;min-height:auto}
      .poster-stack{justify-self:stretch;min-height:330px;width:100%}
      .poster-main{right:5%;width:300px;height:340px}
      .poster-side{left:8%;width:210px;height:240px}
      .steps-grid,.groups-grid,.data-board,.faq-grid,.form-shell,.campaign-inner{grid-template-columns:1fr}
      .groups-grid{grid-template-columns:repeat(2,1fr)}
      .group-card.featured{grid-column:1/-1;min-height:300px}
      .info-layout{grid-template-columns:1fr}
      .recommend-box{position:relative;top:auto}
      .compare-grid{grid-template-columns:1fr}
      .nav-search{display:none}
    }
    @media (max-width:768px){
      .site-header{height:auto;min-height:var(--nav-h)}
      .nav-wrap{min-height:var(--nav-h);flex-wrap:wrap}
      .menu-btn{display:block}
      .nav-links{
        order:5;
        width:100%;
        display:none;
        border-radius:20px;
        justify-content:flex-start;
      }
      .nav-links.open{display:flex}
      .header-actions .btn{display:none}
      .hero{padding-top:20px}
      .hero-stage{border-radius:30px;min-height:auto}
      .hero-content{padding:34px 24px}
      .hero h1{font-size:clamp(38px,12vw,62px)}
      .hero-metrics{grid-template-columns:1fr}
      .poster-stack{display:none}
      .burst{width:104px;height:104px;right:18px;top:18px;font-size:13px}
      .corner-tag{font-size:13px}
      .section{padding:66px 0}
      .section-head{display:block}
      .groups-grid,.gift-grid{grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr;gap:6px}
      .news-meta{white-space:normal}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .floating-cta{border-radius:22px;align-items:stretch;flex-direction:column}
      .floating-cta .btn{width:100%}
    }
    @media (max-width:520px){
      .container{width:calc(100% - 24px)}
      .brand-text{font-size:18px}
      .hero-content{padding:30px 18px}
      .hero-intro{font-size:15px}
      .hero-actions .btn{width:100%}
      .section-title{font-size:30px}
      .card,.campaign,.form-shell{border-radius:24px}
      .campaign-inner,.form-shell{padding:18px}
      .price{font-size:34px}
      .big-number{font-size:48px}
      .seed-card{flex-basis:218px}
    }