/* roulang page: index */
:root{
      --bg:#0f0b16;
      --bg-soft:#17121f;
      --bg-card:#21182d;
      --bg-cream:#fff8ee;
      --text:#fffaf2;
      --text-dark:#21182d;
      --muted:#b9aeca;
      --muted-dark:#6d607a;
      --primary:#ff6b35;
      --primary-2:#ffb000;
      --accent:#8b5cf6;
      --accent-2:#26d0ce;
      --success:#39d98a;
      --danger:#ff4d6d;
      --border:rgba(255,255,255,.12);
      --border-dark:rgba(33,24,45,.12);
      --shadow:0 24px 70px rgba(0,0,0,.28);
      --shadow-soft:0 14px 40px rgba(33,24,45,.12);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
      --nav-height:118px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{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-dark);
      background:
        radial-gradient(circle at 8% 3%, rgba(255,107,53,.16), transparent 34%),
        radial-gradient(circle at 90% 8%, rgba(139,92,246,.18), transparent 32%),
        linear-gradient(180deg,#120d1a 0,#20162b 34%,#fff8ee 34%,#fff8ee 100%);
      line-height:1.72;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:all .22s var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0}
    ::selection{background:rgba(255,107,53,.35);color:#fff}

    .container-site{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .section{
      padding:86px 0;
      position:relative;
    }
    .section-tight{padding:56px 0}
    .section-dark{
      background:linear-gradient(135deg,#17121f 0%,#261733 58%,#15111b 100%);
      color:var(--text);
    }
    .section-title-wrap{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border-radius:999px;
      color:#ffedcf;
      background:rgba(255,107,53,.14);
      border:1px solid rgba(255,176,0,.18);
      font-size:14px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .section h2{
      margin:14px 0 10px;
      font-size:clamp(28px, 3.2vw, 44px);
      line-height:1.15;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .section-desc{
      max-width:720px;
      color:var(--muted-dark);
      margin:0;
      font-size:17px;
    }
    .section-dark .section-desc{color:#cfc5dd}

    .site-header{
      position:fixed;
      top:0;
      left:0;
      right:0;
      z-index:1000;
      color:var(--text);
      transition:all .3s var(--ease);
    }
    .nav-shell{
      width:min(var(--container), calc(100% - 32px));
      margin:16px auto 0;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(23,18,31,.62);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 54px rgba(0,0,0,.22);
      border-radius:24px;
      overflow:hidden;
      transition:all .3s var(--ease);
    }
    .brand-row{
      min-height:64px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:14px 18px;
      transition:all .3s var(--ease);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      letter-spacing:-.03em;
      color:#fff;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      background:
        radial-gradient(circle at 30% 30%, #fff3c0 0 15%, transparent 16%),
        linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 12px 28px rgba(255,107,53,.26);
      flex:0 0 auto;
    }
    .brand-name{
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:18px;
    }
    .header-tools{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .search-box{
      width:290px;
      display:flex;
      align-items:center;
      gap:9px;
      padding:10px 12px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:999px;
      background:rgba(255,255,255,.08);
      color:#d9d0e7;
    }
    .search-box input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:#fff;
      font-size:14px;
    }
    .search-box input::placeholder{color:#a99db9}
    .channel-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:0 18px 14px;
      transition:all .3s var(--ease);
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 16px;
      border-radius:999px;
      color:#d9d0e7;
      font-weight:800;
      font-size:15px;
    }
    .nav-links a:hover,
    .nav-links a.active{
      color:#20142d;
      background:linear-gradient(135deg,#fff2c4,#ffb000);
      box-shadow:0 10px 28px rgba(255,176,0,.22);
    }
    .nav-note{
      display:flex;
      align-items:center;
      gap:9px;
      color:#eadff8;
      font-size:14px;
      white-space:nowrap;
    }
    .pulse-dot{
      width:8px;height:8px;border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 7px rgba(57,217,138,.13);
    }
    .site-header.compact .nav-shell{
      margin-top:8px;
      border-radius:18px;
      background:rgba(23,18,31,.9);
    }
    .site-header.compact .brand-row{min-height:56px;padding:10px 16px}
    .site-header.compact .channel-row{
      max-height:0;
      padding-top:0;
      padding-bottom:0;
      opacity:0;
      overflow:hidden;
    }
    .site-header.compact .brand-mark{width:38px;height:38px;border-radius:13px}
    .mobile-toggle{
      display:none;
      width:44px;height:44px;border-radius:14px;
      align-items:center;justify-content:center;
      color:#fff;background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.12);
    }
    .mobile-panel{
      display:none;
      border-top:1px solid rgba(255,255,255,.1);
      padding:12px 16px 16px;
      background:rgba(12,9,18,.8);
    }
    .mobile-panel.open{display:block}
    .mobile-panel a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:13px 12px;
      border-radius:14px;
      color:#fff;
      font-weight:800;
    }
    .mobile-panel a.active{background:rgba(255,176,0,.16);color:#ffd782}

    .btn-main,
    .btn-ghost,
    .btn-darkline{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:13px 20px;
      font-weight:900;
      line-height:1;
      min-height:48px;
      transition:all .22s var(--ease);
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-main{
      color:#21182d;
      background:linear-gradient(135deg,#fff0b8 0%,#ffb000 45%,#ff6b35 100%);
      box-shadow:0 14px 34px rgba(255,107,53,.32);
    }
    .btn-main:hover{transform:translateY(-2px);color:#21182d;box-shadow:0 18px 42px rgba(255,107,53,.42)}
    .btn-ghost{
      color:#fff;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.16);
    }
    .btn-ghost:hover{background:rgba(255,255,255,.15);color:#fff;transform:translateY(-2px)}
    .btn-darkline{
      color:var(--text-dark);
      background:#fff;
      border:1px solid var(--border-dark);
      box-shadow:0 10px 24px rgba(33,24,45,.08);
    }
    .btn-darkline:hover{color:var(--primary);border-color:rgba(255,107,53,.32);transform:translateY(-2px)}
    .btn-main:focus-visible,
    .btn-ghost:focus-visible,
    .btn-darkline:focus-visible,
    .form-control:focus{
      outline:3px solid rgba(255,176,0,.32);
      outline-offset:3px;
      box-shadow:none;
    }

    .hero{
      min-height:820px;
      padding:174px 0 90px;
      color:#fff;
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(90deg,rgba(15,11,22,.97) 0%,rgba(15,11,22,.78) 42%,rgba(15,11,22,.22) 100%),
        radial-gradient(circle at 78% 36%,rgba(255,107,53,.48),transparent 30%),
        radial-gradient(circle at 55% 15%,rgba(139,92,246,.36),transparent 28%),
        linear-gradient(135deg,#130d1d,#2a1738 58%,#0e0a14);
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
      background-size:54px 54px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 86%);
      pointer-events:none;
    }
    .hero-stage{
      position:relative;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:44px;
      align-items:center;
    }
    .hero-copy{max-width:660px}
    .hero-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:20px;
    }
    .heat-badge,
    .mini-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:999px;
      font-weight:900;
      font-size:14px;
      padding:9px 13px;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.09);
      backdrop-filter:blur(14px);
    }
    .heat-badge{color:#ffd48c}
    .mini-badge{color:#d7ffee}
    .hero h1{
      font-size:clamp(40px, 6vw, 78px);
      line-height:.98;
      letter-spacing:-.07em;
      font-weight:950;
      margin:0 0 22px;
      text-wrap:balance;
    }
    .hero-intro{
      color:#d8ccdf;
      font-size:18px;
      max-width:620px;
      margin:0 0 28px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin:28px 0 32px;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      max-width:640px;
    }
    .metric{
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .metric strong{
      display:block;
      font-size:28px;
      line-height:1;
      color:#fff0b8;
      font-weight:950;
    }
    .metric span{
      display:block;
      margin-top:8px;
      color:#c9bdd6;
      font-size:13px;
    }
    .poster-wrap{
      position:relative;
      min-height:520px;
      perspective:1200px;
    }
    .main-poster{
      position:absolute;
      right:4%;
      top:4%;
      width:min(420px, 88%);
      height:560px;
      border-radius:34px;
      overflow:hidden;
      transform:rotateY(-10deg) rotateZ(2deg);
      background:
        linear-gradient(180deg,rgba(255,255,255,.08),transparent 20%),
        radial-gradient(circle at 52% 34%,rgba(255,176,0,.72),transparent 12%),
        radial-gradient(circle at 50% 36%,rgba(255,107,53,.78),transparent 28%),
        linear-gradient(145deg,#3b1d44 0%,#11101b 48%,#ff6b35 140%);
      box-shadow:0 48px 110px rgba(0,0,0,.48);
      border:1px solid rgba(255,255,255,.15);
    }
    .main-poster::before{
      content:"";
      position:absolute;
      inset:22px;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.15);
      background:
        linear-gradient(180deg,transparent 0 60%,rgba(0,0,0,.58) 100%),
        repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px, transparent 1px 24px);
    }
    .poster-title{
      position:absolute;
      left:34px;
      right:34px;
      bottom:38px;
      z-index:2;
    }
    .poster-title .rank{
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      color:#21182d;
      background:#fff0b8;
      font-size:13px;
      font-weight:950;
      margin-bottom:12px;
    }
    .poster-title h2{
      margin:0 0 10px;
      font-size:34px;
      line-height:1.05;
      letter-spacing:-.04em;
      color:#fff;
      font-weight:950;
    }
    .poster-title p{
      margin:0;
      color:#eee4f7;
      font-size:14px;
    }
    .floating-card{
      position:absolute;
      z-index:3;
      border-radius:22px;
      background:rgba(255,255,255,.11);
      backdrop-filter:blur(18px);
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 18px 54px rgba(0,0,0,.28);
      padding:16px;
    }
    .float-hot{
      left:0;
      bottom:88px;
      width:220px;
    }
    .float-hot strong{
      display:block;
      color:#fff0b8;
      font-size:26px;
      font-weight:950;
      line-height:1.1;
    }
    .float-hot span{color:#d6cce2;font-size:14px}
    .float-step{
      right:0;
      bottom:20px;
      width:250px;
    }
    .step-line{
      display:flex;
      gap:10px;
      align-items:flex-start;
      margin-top:10px;
      color:#eee7f6;
      font-size:14px;
    }
    .step-no{
      width:25px;height:25px;border-radius:50%;
      display:grid;place-items:center;
      color:#21182d;background:#ffb000;
      font-weight:950;
      flex:0 0 auto;
    }

    .news-board{
      display:grid;
      grid-template-columns:1.4fr .8fr;
      gap:24px;
      align-items:start;
    }
    .news-list,
    .recommend-panel,
    .card-modern{
      background:rgba(255,255,255,.74);
      border:1px solid var(--border-dark);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .news-list{padding:12px}
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      padding:18px;
      border-radius:20px;
      transition:all .22s var(--ease);
    }
    .news-item + .news-item{border-top:1px solid rgba(33,24,45,.08)}
    .news-item:hover{
      background:#fff;
      transform:translateX(4px);
      box-shadow:0 12px 28px rgba(33,24,45,.08);
    }
    .news-tag{
      color:#7d3cff;
      background:rgba(139,92,246,.1);
      border:1px solid rgba(139,92,246,.15);
      border-radius:999px;
      padding:7px 10px;
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .news-item h3{
      margin:0 0 5px;
      font-size:18px;
      font-weight:900;
      color:var(--text-dark);
    }
    .news-item p{
      margin:0;
      color:var(--muted-dark);
      font-size:14px;
    }
    .news-arrow{
      width:36px;height:36px;border-radius:50%;
      display:grid;place-items:center;
      background:#fff2df;color:var(--primary);
    }
    .recommend-panel{
      padding:24px;
      background:linear-gradient(135deg,#21182d,#3a2147);
      color:#fff;
      position:sticky;
      top:120px;
    }
    .recommend-panel h3{
      font-size:24px;
      font-weight:950;
      margin:0 0 10px;
    }
    .recommend-panel p{color:#d4c9df;margin:0 0 18px}
    .check-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
    .check-list li{
      display:flex;gap:10px;align-items:flex-start;
      color:#efe8f6;
    }
    .check-list i{color:#ffb000;margin-top:5px}

    .service-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
    }
    .service-feature{
      padding:34px;
      border-radius:var(--radius-lg);
      background:
        radial-gradient(circle at 90% 15%,rgba(255,176,0,.2),transparent 34%),
        linear-gradient(135deg,#fff,#fff6e7);
      border:1px solid rgba(255,107,53,.13);
      box-shadow:var(--shadow-soft);
      min-height:400px;
    }
    .service-feature h3{
      margin:0 0 12px;
      font-size:32px;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .service-feature p{color:var(--muted-dark);margin:0 0 24px}
    .service-pills{
      display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 0;
    }
    .service-pills span{
      padding:9px 12px;border-radius:999px;
      background:#fff;border:1px solid rgba(33,24,45,.09);
      color:#5d5069;font-weight:800;font-size:14px;
    }
    .solution-stack{
      display:grid;
      gap:16px;
    }
    .solution-card{
      display:flex;
      gap:16px;
      align-items:flex-start;
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(33,24,45,.1);
      box-shadow:0 10px 26px rgba(33,24,45,.07);
      transition:all .22s var(--ease);
    }
    .solution-card:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(33,24,45,.12)}
    .solution-icon{
      width:48px;height:48px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      flex:0 0 auto;
      box-shadow:0 12px 26px rgba(255,107,53,.22);
    }
    .solution-card h3{font-size:19px;font-weight:950;margin:0 0 6px}
    .solution-card p{margin:0;color:var(--muted-dark);font-size:15px}

    .guarantee-strip{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:14px;
    }
    .guarantee-item{
      display:flex;
      align-items:center;
      gap:14px;
      padding:19px;
      border-radius:22px;
      background:#fff;
      border:1px solid rgba(33,24,45,.1);
      box-shadow:0 10px 26px rgba(33,24,45,.07);
    }
    .guarantee-item i{
      width:44px;height:44px;border-radius:15px;
      display:grid;place-items:center;
      color:#21182d;
      background:#fff0b8;
      font-size:19px;
    }
    .guarantee-item strong{display:block;font-weight:950}
    .guarantee-item span{display:block;color:var(--muted-dark);font-size:13px;margin-top:2px}

    .catalog-layout{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:24px;
      align-items:stretch;
    }
    .catalog-lead{
      padding:30px;
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,#21182d,#15101d);
      color:#fff;
      box-shadow:var(--shadow);
      min-height:360px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .catalog-lead p{color:#d6ccdf}
    .catalog-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .catalog-card{
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(33,24,45,.1);
      box-shadow:0 10px 26px rgba(33,24,45,.07);
      transition:all .22s var(--ease);
    }
    .catalog-card:hover{transform:translateY(-4px);box-shadow:0 20px 46px rgba(33,24,45,.12)}
    .catalog-card .count{
      display:inline-flex;
      color:#21182d;
      background:#fff0b8;
      border-radius:999px;
      padding:7px 10px;
      font-weight:950;
      font-size:13px;
      margin-bottom:18px;
    }
    .catalog-card h3{font-size:20px;font-weight:950;margin:0 0 8px}
    .catalog-card p{color:var(--muted-dark);margin:0 0 16px;font-size:15px}
    .text-link{
      color:var(--primary);
      font-weight:950;
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .text-link:hover{gap:12px;color:#d84e19}

    .pricing-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
      align-items:stretch;
    }
    .price-card{
      position:relative;
      padding:28px;
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(33,24,45,.1);
      box-shadow:0 12px 30px rgba(33,24,45,.08);
      transition:all .22s var(--ease);
      overflow:hidden;
    }
    .price-card:hover{transform:translateY(-5px);box-shadow:0 24px 58px rgba(33,24,45,.14)}
    .price-card.recommend{
      color:#fff;
      background:
        radial-gradient(circle at 100% 0,rgba(255,176,0,.35),transparent 30%),
        linear-gradient(135deg,#2a1738,#17121f);
      border-color:rgba(255,176,0,.24);
      transform:translateY(-10px);
    }
    .price-card.recommend:hover{transform:translateY(-15px)}
    .ribbon{
      position:absolute;
      top:18px;right:-34px;
      transform:rotate(34deg);
      background:#ffb000;
      color:#21182d;
      font-weight:950;
      font-size:13px;
      padding:7px 42px;
      box-shadow:0 10px 20px rgba(0,0,0,.16);
    }
    .price-card h3{font-size:24px;font-weight:950;margin:0 0 10px}
    .price{
      display:flex;
      align-items:flex-end;
      gap:5px;
      margin:18px 0;
    }
    .price strong{font-size:42px;line-height:1;font-weight:950;letter-spacing:-.05em}
    .price span{color:var(--muted-dark)}
    .recommend .price span,
    .recommend p,
    .recommend .feature-list li{color:#d8cfe5}
    .feature-list{list-style:none;margin:22px 0;padding:0;display:grid;gap:12px}
    .feature-list li{display:flex;gap:10px;color:#5f526d;font-size:15px}
    .feature-list i{color:var(--success);margin-top:5px}
    .recommend .feature-list i{color:#ffb000}

    .app-stage{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:26px;
      align-items:center;
      padding:34px;
      border-radius:36px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.1),rgba(255,255,255,.04)),
        radial-gradient(circle at 86% 20%,rgba(38,208,206,.28),transparent 30%),
        #17121f;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      color:#fff;
    }
    .app-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .device-panel{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
    }
    .device-card{
      min-height:128px;
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.12);
    }
    .device-card i{
      width:44px;height:44px;border-radius:15px;
      display:grid;place-items:center;
      background:rgba(255,176,0,.18);
      color:#ffcf63;
      margin-bottom:14px;
    }
    .device-card strong{display:block;font-weight:950}
    .device-card span{display:block;color:#cfc5dc;font-size:14px;margin-top:4px}

    .faq-wrap{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:28px;
      align-items:start;
    }
    .faq-side{
      border-radius:var(--radius-lg);
      padding:30px;
      background:#fff;
      border:1px solid rgba(33,24,45,.1);
      box-shadow:var(--shadow-soft);
    }
    .faq-side h3{font-size:26px;font-weight:950;margin:0 0 10px}
    .faq-side p{color:var(--muted-dark)}
    .accordion{display:grid;gap:14px}
    .accordion-item{
      border:1px solid rgba(33,24,45,.1)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 10px 26px rgba(33,24,45,.07);
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:950;
      color:var(--text-dark);
      background:#fff;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      color:#21182d;
      background:#fff6e7;
    }
    .accordion-button:focus{box-shadow:none;border-color:transparent}
    .accordion-body{
      color:var(--muted-dark);
      padding:0 22px 22px;
    }

    .about-panel{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .story-card{
      padding:34px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(33,24,45,.1);
      box-shadow:var(--shadow-soft);
    }
    .story-card h2{margin-top:0}
    .story-card p{color:var(--muted-dark)}
    .review-wall{
      display:grid;
      gap:14px;
    }
    .bubble{
      padding:20px;
      border-radius:24px 24px 24px 8px;
      background:#fff;
      border:1px solid rgba(33,24,45,.1);
      box-shadow:0 10px 26px rgba(33,24,45,.07);
    }
    .bubble:nth-child(even){border-radius:24px 24px 8px 24px;background:#fff6e7}
    .bubble-head{
      display:flex;align-items:center;gap:10px;margin-bottom:10px;
    }
    .avatar{
      width:38px;height:38px;border-radius:50%;
      display:grid;place-items:center;
      color:#fff;font-weight:950;
      background:linear-gradient(135deg,var(--accent),var(--primary));
    }
    .bubble strong{font-weight:950}
    .bubble p{margin:0;color:var(--muted-dark);font-size:15px}

    .lead-cta{
      padding:44px;
      border-radius:36px;
      color:#fff;
      background:
        radial-gradient(circle at 8% 20%,rgba(255,176,0,.28),transparent 28%),
        radial-gradient(circle at 92% 8%,rgba(139,92,246,.32),transparent 32%),
        linear-gradient(135deg,#21182d,#11101a);
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.12);
    }
    .lead-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:center;
    }
    .lead-cta h2{font-size:clamp(30px,3.5vw,48px);font-weight:950;letter-spacing:-.05em;margin:12px 0}
    .lead-cta p{color:#d8cfe4}
    .lead-form{
      padding:24px;
      border-radius:26px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .form-control,
    .form-select{
      border-radius:16px;
      min-height:50px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.92);
      color:#21182d;
      padding:12px 14px;
    }
    .form-label{font-weight:850;color:#fff}
    .privacy-note{
      display:flex;
      gap:10px;
      color:#cfc5dc;
      font-size:13px;
      margin-top:14px;
    }
    .privacy-note i{color:#ffb000;margin-top:4px}

    .site-footer{
      color:#e9e0f2;
      background:#0f0b16;
      padding:54px 0 28px;
      border-top:1px solid rgba(255,255,255,.1);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;align-items:center;gap:12px;
      font-weight:950;font-size:20px;margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-desc{max-width:640px;color:#bfb3cd;margin:0}
    .footer-links{
      display:flex;
      justify-content:flex-end;
      gap:12px;
      flex-wrap:wrap;
    }
    .footer-links a{
      padding:10px 14px;
      border-radius:999px;
      color:#d8cfe4;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.09);
      font-weight:800;
    }
    .footer-links a:hover{background:rgba(255,176,0,.16);color:#ffcf63}
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.09);
      color:#9f91b1;
      font-size:14px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }

    @media (max-width: 1024px){
      :root{--container:920px}
      .search-box{width:220px}
      .hero-stage,
      .service-grid,
      .catalog-layout,
      .app-stage,
      .faq-wrap,
      .about-panel,
      .lead-grid,
      .news-board{
        grid-template-columns:1fr;
      }
      .poster-wrap{min-height:480px}
      .main-poster{left:50%;right:auto;transform:translateX(-50%) rotateY(-8deg) rotateZ(1deg)}
      .float-hot{left:4%}
      .float-step{right:4%}
      .recommend-panel{position:relative;top:0}
      .guarantee-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
      .pricing-grid{grid-template-columns:1fr}
      .price-card.recommend{transform:none}
      .price-card.recommend:hover{transform:translateY(-5px)}
    }

    @media (max-width: 768px){
      body{
        background:
          radial-gradient(circle at 8% 3%, rgba(255,107,53,.16), transparent 34%),
          linear-gradient(180deg,#120d1a 0,#20162b 28%,#fff8ee 28%,#fff8ee 100%);
      }
      .container-site{width:min(100% - 28px, var(--container))}
      .nav-shell{width:calc(100% - 20px);margin-top:10px;border-radius:20px}
      .brand-row{padding:10px 12px;min-height:60px}
      .brand-name{font-size:16px;max-width:58vw}
      .header-tools,.channel-row{display:none}
      .mobile-toggle{display:flex}
      .site-header.compact .brand-row{min-height:58px}
      .hero{min-height:auto;padding:116px 0 56px}
      .hero h1{font-size:clamp(36px, 11vw, 54px)}
      .hero-intro{font-size:16px}
      .hero-actions{display:grid;grid-template-columns:1fr;gap:10px}
      .hero-metrics{grid-template-columns:1fr}
      .poster-wrap{min-height:430px}
      .main-poster{width:82%;height:430px;border-radius:26px}
      .poster-title{left:24px;right:24px;bottom:26px}
      .poster-title h2{font-size:26px}
      .floating-card{position:relative;left:auto;right:auto;bottom:auto;width:auto;margin:14px auto 0}
      .float-hot,.float-step{width:88%}
      .section{padding:62px 0}
      .section-title-wrap{display:block}
      .news-item{grid-template-columns:1fr;gap:8px}
      .news-arrow{display:none}
      .guarantee-strip,.catalog-grid,.device-panel{grid-template-columns:1fr}
      .service-feature,.lead-cta{padding:26px}
      .app-stage{padding:24px}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (max-width: 520px){
      .container-site{width:calc(100% - 22px)}
      .brand-name{max-width:62vw}
      .brand-mark{width:38px;height:38px}
      .heat-badge,.mini-badge{font-size:13px}
      .hero{padding-top:104px}
      .main-poster{width:92%;height:390px}
      .poster-wrap{min-height:400px}
      .section h2{font-size:30px}
      .service-feature h3{font-size:26px}
      .price-card,.story-card,.faq-side,.catalog-lead{padding:24px}
      .lead-cta{border-radius:28px}
      .btn-main,.btn-ghost,.btn-darkline{width:100%}
      .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}