/* roulang page: index */
:root{
      --primary:#3B82F6;
      --primary-dark:#1D4ED8;
      --primary-soft:#EAF3FF;
      --secondary:#F7A8C8;
      --secondary-soft:#FFF0F6;
      --purple:#A78BFA;
      --purple-soft:#F2EEFF;
      --bg:#F7FAFF;
      --bg-2:#FBFCFF;
      --surface:#FFFFFF;
      --surface-soft:rgba(255,255,255,.78);
      --text:#172033;
      --muted:#64748B;
      --light-text:#94A3B8;
      --border:#E2E8F0;
      --border-soft:rgba(148,163,184,.24);
      --success:#22C55E;
      --warning:#F59E0B;
      --shadow:0 18px 50px rgba(30,64,175,.08);
      --shadow-hover:0 24px 70px rgba(30,64,175,.14);
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:30px;
      --radius-pill:999px;
      --container:1180px;
      --nav-height:76px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 10%, rgba(247,168,200,.22), transparent 28%),
        radial-gradient(circle at 86% 8%, rgba(59,130,246,.18), transparent 32%),
        linear-gradient(180deg,#F8FBFF 0%,#FFFFFF 42%,#F7FAFF 100%);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer;background:transparent}
    ::selection{background:rgba(59,130,246,.18);color:var(--primary-dark)}
    :focus-visible{outline:3px solid rgba(59,130,246,.28);outline-offset:3px;border-radius:10px}
    .container{width:min(100% - 64px,var(--container));margin-inline:auto}
    .skip-link{
      position:absolute;left:24px;top:-60px;z-index:1000;
      background:var(--primary);color:#fff;padding:10px 16px;border-radius:var(--radius-pill);
      transition:top .2s var(--ease)
    }
    .skip-link:focus{top:18px}

    .site-header{
      position:sticky;
      top:14px;
      z-index:100;
      padding:14px 0 0;
      pointer-events:none;
    }
    .nav-pill{
      pointer-events:auto;
      height:var(--nav-height);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:10px 12px 10px 18px;
      background:rgba(255,255,255,.86);
      border:1px solid var(--border-soft);
      border-radius:var(--radius-pill);
      box-shadow:0 16px 50px rgba(30,64,175,.10);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:50%;
      display:grid;place-items:center;color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary) 56%,var(--purple));
      box-shadow:0 12px 28px rgba(59,130,246,.22);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;inset:7px;
      border-radius:50%;
      border:1px solid rgba(255,255,255,.55);
    }
    .brand-mark span{
      position:relative;
      width:0;height:0;
      border-top:7px solid transparent;
      border-bottom:7px solid transparent;
      border-left:11px solid #fff;
      margin-left:3px;
    }
    .brand-text{font-size:16px;white-space:nowrap}
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      padding:4px;
      border-radius:var(--radius-pill);
      background:rgba(241,245,249,.58);
    }
    .nav-links a{
      padding:10px 15px;
      border-radius:var(--radius-pill);
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:all .22s var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover{
      color:var(--primary-dark);
      background:#fff;
      box-shadow:0 8px 22px rgba(30,64,175,.08);
    }
    .nav-links a.active{
      color:var(--primary-dark);
      background:var(--primary-soft);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mobile-toggle{
      display:none;
      width:44px;height:44px;border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary-dark);
      align-items:center;justify-content:center;
      transition:all .22s var(--ease);
    }
    .mobile-toggle:hover{background:#DBEAFF;transform:translateY(-1px)}
    .mobile-toggle i,.mobile-toggle i:before,.mobile-toggle i:after{
      display:block;width:18px;height:2px;background:currentColor;border-radius:999px;position:relative;
      transition:all .22s var(--ease);
    }
    .mobile-toggle i:before,.mobile-toggle i:after{content:"";position:absolute;left:0}
    .mobile-toggle i:before{top:-6px}
    .mobile-toggle i:after{top:6px}
    .mobile-toggle.open i{background:transparent}
    .mobile-toggle.open i:before{top:0;transform:rotate(45deg)}
    .mobile-toggle.open i:after{top:0;transform:rotate(-45deg)}

    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;
      padding:13px 20px;
      border-radius:var(--radius-pill);
      font-weight:800;
      font-size:15px;
      border:1px solid transparent;
      transition:all .22s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 14px 30px rgba(59,130,246,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(59,130,246,.34)}
    .btn-secondary{
      color:var(--primary-dark);
      background:#fff;
      border-color:rgba(59,130,246,.18);
      box-shadow:0 10px 28px rgba(30,64,175,.07);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(59,130,246,.36);box-shadow:var(--shadow)}
    .btn-text{
      color:var(--primary-dark);
      padding:8px 0;
      min-height:auto;
      font-weight:800;
    }
    .btn-text .arrow{transition:transform .2s var(--ease)}
    .btn-text:hover .arrow{transform:translateX(4px)}
    .badge,.tag{
      display:inline-flex;align-items:center;gap:6px;
      padding:7px 11px;border-radius:var(--radius-pill);
      font-size:13px;font-weight:800;line-height:1;
      border:1px solid rgba(148,163,184,.2);
      background:#fff;color:var(--muted);
    }
    .badge-blue{background:var(--primary-soft);color:var(--primary-dark);border-color:rgba(59,130,246,.14)}
    .badge-pink{background:var(--secondary-soft);color:#BE477A;border-color:rgba(247,168,200,.28)}
    .badge-purple{background:var(--purple-soft);color:#6D50D4;border-color:rgba(167,139,250,.25)}
    .badge-green{background:#EAFBF0;color:#15803D;border-color:rgba(34,197,94,.22)}

    main{position:relative}
    .hero{
      padding:84px 0 58px;
      position:relative;
    }
    .hero:before{
      content:"";
      position:absolute;
      width:520px;height:520px;border-radius:50%;
      right:-190px;top:20px;
      background:radial-gradient(circle,rgba(167,139,250,.20),transparent 66%);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(420px,1.02fr);
      gap:54px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 13px;
      background:rgba(255,255,255,.72);
      border:1px solid var(--border-soft);
      border-radius:var(--radius-pill);
      box-shadow:0 10px 26px rgba(30,64,175,.06);
      color:var(--primary-dark);
      font-weight:800;
      font-size:14px;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:linear-gradient(135deg,var(--secondary),var(--primary));
      box-shadow:0 0 0 5px rgba(59,130,246,.10);
    }
    h1{
      font-size:clamp(36px,5vw,56px);
      line-height:1.12;
      letter-spacing:-.05em;
      max-width:720px;
      margin-bottom:20px;
    }
    .gradient-text{
      background:linear-gradient(120deg,var(--primary-dark),var(--primary),#B34E82);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      color:var(--muted);
      font-size:18px;
      line-height:1.9;
      max-width:650px;
      margin-bottom:28px;
    }
    .hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:24px}
    .search-card{
      display:flex;align-items:center;gap:10px;
      padding:9px;
      width:min(100%,590px);
      background:#fff;
      border:1px solid rgba(59,130,246,.14);
      border-radius:var(--radius-pill);
      box-shadow:var(--shadow);
    }
    .search-card input{
      flex:1;border:0;outline:0;min-width:0;
      padding:0 12px;color:var(--text);background:transparent;
      min-height:44px;
    }
    .search-card input::placeholder{color:var(--light-text)}
    .search-card:focus-within{
      border-color:rgba(59,130,246,.55);
      box-shadow:0 0 0 5px rgba(59,130,246,.10),var(--shadow);
    }
    .search-card .btn{min-height:42px;padding:10px 16px}
    .hero-note{
      display:flex;gap:10px;align-items:flex-start;
      color:var(--muted);font-size:14px;margin-top:14px;
    }
    .hero-note strong{color:var(--text)}

    .watch-panel{
      position:relative;
      border-radius:34px;
      padding:18px;
      background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(239,246,255,.86));
      border:1px solid rgba(148,163,184,.22);
      box-shadow:0 28px 80px rgba(30,64,175,.14);
      overflow:hidden;
    }
    .watch-panel:before{
      content:"";
      position:absolute;inset:-80px -60px auto auto;width:210px;height:210px;border-radius:50%;
      background:rgba(247,168,200,.30);
      filter:blur(6px);
    }
    .panel-top{
      position:relative;display:flex;justify-content:space-between;gap:12px;align-items:center;
      margin-bottom:14px;
    }
    .panel-dots{display:flex;gap:7px}
    .panel-dots span{width:10px;height:10px;border-radius:50%;background:#CBD5E1}
    .panel-dots span:nth-child(1){background:#FCA5A5}
    .panel-dots span:nth-child(2){background:#FCD34D}
    .panel-dots span:nth-child(3){background:#86EFAC}
    .panel-badges{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
    .video-stage{
      position:relative;
      min-height:292px;
      border-radius:28px;
      overflow:hidden;
      background:
        radial-gradient(circle at 20% 22%,rgba(255,255,255,.50),transparent 15%),
        linear-gradient(135deg,#DBEAFF 0%,#FCE7F3 52%,#EDE9FE 100%);
      border:1px solid rgba(255,255,255,.8);
    }
    .video-stage:before{
      content:"";
      position:absolute;inset:0;
      background-image:
        radial-gradient(circle at 20% 78%,rgba(59,130,246,.22) 0 3px,transparent 4px),
        radial-gradient(circle at 72% 25%,rgba(247,168,200,.30) 0 4px,transparent 5px),
        radial-gradient(circle at 84% 70%,rgba(167,139,250,.24) 0 3px,transparent 4px);
      background-size:110px 110px;
      opacity:.9;
    }
    .play-orb{
      position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
      width:74px;height:74px;border-radius:50%;
      background:rgba(255,255,255,.82);
      display:grid;place-items:center;
      box-shadow:0 18px 45px rgba(30,64,175,.16);
      backdrop-filter:blur(10px);
    }
    .play-orb:after{
      content:"";
      width:0;height:0;border-top:12px solid transparent;border-bottom:12px solid transparent;border-left:18px solid var(--primary);
      margin-left:5px;
    }
    .cover-stack{
      position:absolute;left:18px;right:18px;bottom:18px;
      display:grid;grid-template-columns:1.15fr .85fr;gap:12px;
    }
    .cover-mini{
      padding:14px;
      min-height:84px;
      border-radius:20px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(255,255,255,.85);
      backdrop-filter:blur(10px);
    }
    .cover-title{font-weight:900;color:var(--text);margin-bottom:5px}
    .cover-line{height:7px;border-radius:999px;background:rgba(59,130,246,.18);margin-top:9px;overflow:hidden}
    .cover-line span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--secondary));width:72%}
    .cover-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
    .tiny-tag{font-size:12px;font-weight:800;color:var(--primary-dark);background:rgba(234,243,255,.9);border-radius:999px;padding:4px 8px}
    .panel-bottom{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px;
    }
    .metric{
      padding:15px;border-radius:22px;background:#fff;border:1px solid var(--border-soft);
    }
    .metric b{display:block;font-size:21px;color:var(--primary-dark);line-height:1.2}
    .metric span{font-size:13px;color:var(--muted);font-weight:700}

    .section{padding:92px 0}
    .section.compact{padding:72px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:34px;
    }
    .section-kicker{
      color:var(--primary-dark);
      font-weight:900;
      font-size:14px;
      margin-bottom:7px;
    }
    h2{
      font-size:clamp(28px,3.3vw,38px);
      line-height:1.22;
      letter-spacing:-.04em;
      max-width:760px;
    }
    .section-desc{color:var(--muted);max-width:520px;font-size:16px}

    .trust-strip{
      padding:24px 0 12px;
    }
    .trust-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .trust-item{
      background:rgba(255,255,255,.78);
      border:1px solid var(--border-soft);
      border-radius:24px;
      padding:18px;
      box-shadow:0 10px 30px rgba(30,64,175,.05);
      transition:all .22s var(--ease);
    }
    .trust-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .trust-item b{display:block;font-size:24px;color:var(--primary-dark);line-height:1.25}
    .trust-item span{color:var(--muted);font-weight:700;font-size:14px}

    .bento-grid{
      display:grid;
      grid-template-columns:1.25fr .85fr;
      grid-template-rows:auto auto;
      gap:22px;
    }
    .card{
      background:var(--surface);
      border:1px solid var(--border-soft);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
      overflow:hidden;
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(59,130,246,.25)}
    .feature-card{padding:28px}
    .feature-card.large{
      grid-row:span 2;
      min-height:450px;
      background:
        radial-gradient(circle at 85% 16%,rgba(247,168,200,.22),transparent 32%),
        linear-gradient(145deg,#fff,#F3F8FF);
    }
    .feature-icon{
      width:48px;height:48px;border-radius:17px;
      display:grid;place-items:center;
      color:#fff;font-size:22px;font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--purple));
      box-shadow:0 12px 26px rgba(59,130,246,.22);
      margin-bottom:18px;
    }
    .feature-card h3{font-size:24px;line-height:1.3;margin-bottom:10px}
    .feature-card p{color:var(--muted);margin-bottom:18px}
    .quality-bars{display:grid;gap:12px;margin-top:24px}
    .quality-row{
      display:grid;grid-template-columns:90px 1fr 42px;gap:12px;align-items:center;
      font-size:14px;font-weight:800;color:var(--muted);
    }
    .bar{height:10px;border-radius:999px;background:#EAF0F8;overflow:hidden}
    .bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--secondary))}
    .tag-cloud{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}
    .device-preview{
      margin-top:26px;
      display:grid;grid-template-columns:1fr 1.8fr;gap:16px;align-items:end;
    }
    .phone-ui,.desktop-ui{
      border-radius:24px;
      background:linear-gradient(160deg,#EAF3FF,#FFF0F6);
      border:1px solid rgba(255,255,255,.9);
      padding:14px;
      min-height:156px;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.55);
    }
    .desktop-ui{min-height:210px;border-radius:28px}
    .ui-line{height:9px;border-radius:999px;background:rgba(59,130,246,.18);margin-bottom:10px}
    .ui-blocks{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
    .ui-blocks span{height:54px;border-radius:14px;background:rgba(255,255,255,.72)}

    .scenes{
      position:relative;
      background:linear-gradient(180deg,#FFFFFF 0%,#F6FAFF 100%);
      border-top:1px solid rgba(226,232,240,.8);
      border-bottom:1px solid rgba(226,232,240,.8);
    }
    .timeline{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      position:relative;
    }
    .scene-card{
      padding:24px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:0 14px 38px rgba(30,64,175,.06);
      position:relative;
    }
    .scene-card:before{
      content:attr(data-step);
      display:inline-grid;place-items:center;
      width:34px;height:34px;border-radius:50%;
      color:#fff;font-size:13px;font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      margin-bottom:16px;
    }
    .scene-card h3{font-size:20px;margin-bottom:8px}
    .scene-card p{color:var(--muted);font-size:15px}

    .category-cards{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:24px;
    }
    .category-card{
      position:relative;
      min-height:330px;
      padding:30px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      isolation:isolate;
    }
    .category-card:before{
      content:"";
      position:absolute;inset:0;z-index:-1;
      background:
        radial-gradient(circle at 82% 20%,rgba(255,255,255,.42),transparent 22%),
        linear-gradient(135deg,rgba(59,130,246,.12),rgba(247,168,200,.12));
      opacity:.85;
    }
    .category-card:nth-child(2):before{
      background:
        radial-gradient(circle at 80% 15%,rgba(255,255,255,.45),transparent 22%),
        linear-gradient(135deg,rgba(167,139,250,.15),rgba(59,130,246,.10));
    }
    .cover-art{
      height:138px;border-radius:24px;margin-bottom:22px;position:relative;overflow:hidden;
      background:linear-gradient(135deg,#BFDBFE,#FBCFE8 56%,#DDD6FE);
      border:1px solid rgba(255,255,255,.8);
    }
    .cover-art:before{
      content:"HD";
      position:absolute;right:14px;top:14px;
      padding:5px 9px;border-radius:999px;background:rgba(255,255,255,.82);
      color:var(--primary-dark);font-weight:900;font-size:12px;
    }
    .cover-art:after{
      content:"";
      position:absolute;left:26px;bottom:22px;width:72%;height:9px;border-radius:999px;
      background:rgba(255,255,255,.72);
      box-shadow:0 -24px 0 rgba(255,255,255,.45),0 -48px 0 rgba(255,255,255,.30);
    }
    .category-card h3{font-size:26px;line-height:1.25;margin-bottom:10px}
    .category-card p{color:var(--muted);margin-bottom:18px}
    .category-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}

    .feedback-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:20px;
    }
    .quote-card{
      padding:26px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:var(--shadow);
    }
    .quote-card.featured{
      background:linear-gradient(145deg,#fff,#F1F7FF);
    }
    .quote-mark{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      background:var(--secondary-soft);
      color:#BE477A;
      font-size:24px;font-weight:900;
      margin-bottom:16px;
    }
    .quote-card p{color:var(--text);font-weight:650;margin-bottom:18px}
    .quote-user{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px;font-weight:800}
    .avatar{
      width:34px;height:34px;border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
    }

    .plans{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:20px;
    }
    .plan{
      padding:28px;
      border-radius:30px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .plan.highlight{
      border-color:rgba(59,130,246,.32);
      background:linear-gradient(145deg,#fff,#F2F8FF);
      transform:translateY(-8px);
    }
    .plan.highlight:before{
      content:"推荐体验";
      position:absolute;right:20px;top:20px;
      padding:6px 10px;border-radius:999px;
      background:var(--primary);color:#fff;font-size:12px;font-weight:900;
    }
    .plan h3{font-size:22px;margin-bottom:8px}
    .plan .price{font-size:34px;font-weight:950;letter-spacing:-.04em;color:var(--primary-dark);margin:14px 0}
    .plan .price small{font-size:14px;color:var(--muted);font-weight:800}
    .plan ul{list-style:none;display:grid;gap:10px;margin:20px 0 22px}
    .plan li{display:flex;gap:9px;color:var(--muted);font-weight:650}
    .plan li:before{content:"✓";color:var(--success);font-weight:950}

    .faq-grid{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:28px;
      align-items:start;
    }
    .faq-intro{
      padding:30px;border-radius:30px;
      background:linear-gradient(145deg,var(--primary-soft),#fff);
      border:1px solid rgba(59,130,246,.16);
      position:sticky;top:110px;
    }
    .faq-intro p{color:var(--muted);margin:12px 0 20px}
    .faq-list{display:grid;gap:14px}
    .faq-item{
      background:#fff;border:1px solid var(--border-soft);
      border-radius:22px;overflow:hidden;
      box-shadow:0 10px 28px rgba(30,64,175,.04);
      transition:all .22s var(--ease);
    }
    .faq-item.active{border-color:rgba(59,130,246,.36);box-shadow:var(--shadow)}
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
      text-align:left;padding:20px 22px;color:var(--text);font-weight:900;
    }
    .faq-icon{
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;flex:0 0 auto;
      background:var(--primary-soft);color:var(--primary-dark);
      transition:transform .22s var(--ease);
    }
    .faq-item.active .faq-icon{transform:rotate(45deg)}
    .faq-answer{
      padding:0 22px 20px;color:var(--muted);
      display:none;
    }
    .faq-item.active .faq-answer{display:block}
    .faq-item.no-js .faq-answer{display:block}

    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      padding:54px;
      background:
        radial-gradient(circle at 88% 20%,rgba(247,168,200,.32),transparent 28%),
        linear-gradient(135deg,#EAF3FF,#FFFFFF 48%,#FFF0F6);
      border:1px solid rgba(59,130,246,.16);
      box-shadow:0 22px 60px rgba(30,64,175,.10);
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .cta-box h2{margin-bottom:12px}
    .cta-box p{color:var(--muted);max-width:650px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}

    .site-footer{
      padding:58px 0 30px;
      background:#EEF6FF;
      border-top:1px solid rgba(148,163,184,.22);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .65fr .65fr;
      gap:38px;
      margin-bottom:34px;
    }
    .footer-brand{
      display:flex;align-items:center;gap:10px;font-weight:900;margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:38px;height:38px}
    .footer-text{color:var(--muted);max-width:520px}
    .footer-col h3{font-size:16px;margin-bottom:14px}
    .footer-links{list-style:none;display:grid;gap:10px}
    .footer-links a{
      color:var(--muted);font-weight:700;transition:all .2s var(--ease);
    }
    .footer-links a:hover{color:var(--primary-dark);padding-left:4px}
    .footer-bottom{
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      padding-top:24px;border-top:1px solid rgba(148,163,184,.22);
      color:var(--muted);font-size:14px;
    }

    @media (max-width:1024px){
      .container{width:min(100% - 48px,var(--container))}
      .nav-pill{border-radius:28px;height:auto;min-height:68px;align-items:flex-start;flex-wrap:wrap}
      .nav-links{
        order:3;width:100%;justify-content:center;display:none;
        background:#F8FBFF;border:1px solid var(--border-soft);
      }
      .nav-links.open{display:flex}
      .mobile-toggle{display:flex}
      .hero-grid{grid-template-columns:1fr;gap:38px}
      .watch-panel{max-width:720px;margin-inline:auto}
      .trust-grid{grid-template-columns:repeat(2,1fr)}
      .timeline{grid-template-columns:repeat(2,1fr)}
      .feedback-grid{grid-template-columns:1fr 1fr}
      .feedback-grid .featured{grid-column:1/-1}
      .plans{grid-template-columns:1fr}
      .plan.highlight{transform:none}
      .faq-grid{grid-template-columns:1fr}
      .faq-intro{position:static}
      .cta-box{grid-template-columns:1fr;text-align:left}
      .cta-actions{justify-content:flex-start}
    }

    @media (max-width:768px){
      .container{width:min(100% - 36px,var(--container))}
      .site-header{top:8px;padding-top:8px}
      .nav-pill{padding:9px 10px 9px 12px;border-radius:24px}
      .brand-text{font-size:14px;max-width:178px;white-space:normal;line-height:1.25}
      .nav-actions .btn{display:none}
      .nav-links{flex-direction:column;align-items:stretch;border-radius:20px;padding:8px}
      .nav-links a{text-align:center}
      .hero{padding:58px 0 38px}
      .hero-actions,.search-card{align-items:stretch}
      .hero-actions .btn{width:100%}
      .search-card{border-radius:24px;flex-direction:column}
      .search-card input{width:100%;min-height:48px}
      .search-card .btn{width:100%}
      .panel-badges{display:none}
      .video-stage{min-height:250px}
      .cover-stack{grid-template-columns:1fr}
      .panel-bottom{grid-template-columns:1fr}
      .section{padding:68px 0}
      .section.compact{padding:56px 0}
      .section-head{display:block}
      .section-desc{margin-top:10px}
      .trust-grid,.bento-grid,.timeline,.category-cards,.feedback-grid{grid-template-columns:1fr}
      .feature-card.large{min-height:auto}
      .device-preview{grid-template-columns:1fr}
      .category-card{min-height:auto}
      .footer-grid{grid-template-columns:1fr}
      .cta-box{padding:34px 22px;border-radius:28px}
      .cta-actions .btn{width:100%}
    }

    @media (max-width:520px){
      .container{width:min(100% - 32px,var(--container))}
      .brand-mark{width:38px;height:38px}
      .mobile-toggle{width:40px;height:40px}
      h1{font-size:34px}
      .hero-lead{font-size:16px}
      .feature-card,.quote-card,.plan{padding:22px}
      .quality-row{grid-template-columns:70px 1fr 34px;font-size:12px}
      .cover-art{height:118px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category2 */
:root {
      --primary: #3B82F6;
      --primary-dark: #1D4ED8;
      --primary-soft: #DBEAFE;
      --secondary: #F7A8C8;
      --secondary-soft: #FCE7F3;
      --purple: #A78BFA;
      --purple-soft: #EDE9FE;
      --bg: #F7FAFF;
      --bg-2: #FBFCFF;
      --surface: #FFFFFF;
      --surface-soft: rgba(255,255,255,.78);
      --text: #172033;
      --muted: #64748B;
      --muted-2: #94A3B8;
      --border: rgba(148, 163, 184, .24);
      --border-strong: rgba(59, 130, 246, .25);
      --success: #22C55E;
      --warning: #F59E0B;
      --shadow: 0 18px 50px rgba(30, 64, 175, .08);
      --shadow-hover: 0 24px 70px rgba(30, 64, 175, .14);
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 14px;
      --container: 1200px;
      --section: 96px;
      --ease: cubic-bezier(.2,.8,.2,1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      min-height: 100vh;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 12%, rgba(247,168,200,.26), transparent 28%),
        radial-gradient(circle at 88% 6%, rgba(167,139,250,.22), transparent 26%),
        linear-gradient(180deg, #F7FAFF 0%, #FFFFFF 42%, #F8FBFF 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
    }

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: transparent;
    }

    img,
    svg {
      max-width: 100%;
      display: block;
    }

    ::selection {
      background: rgba(59,130,246,.18);
      color: var(--primary-dark);
    }

    :focus-visible {
      outline: 3px solid rgba(59,130,246,.32);
      outline-offset: 3px;
      border-radius: 12px;
    }

    .container {
      width: min(100% - 64px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 16px;
      z-index: 50;
      padding: 14px 0;
    }

    .nav-pill {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 10px 12px 10px 16px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: rgba(255,255,255,.88);
      box-shadow: 0 14px 40px rgba(30,64,175,.08);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
      font-weight: 800;
      letter-spacing: -.02em;
      color: var(--text);
    }

    .brand:hover {
      color: var(--primary-dark);
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      flex: 0 0 36px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--primary), var(--secondary) 54%, var(--purple));
      box-shadow: 0 10px 24px rgba(59,130,246,.25);
      position: relative;
      overflow: hidden;
    }

    .brand-mark::before {
      content: "";
      position: absolute;
      inset: 7px;
      border-radius: inherit;
      border: 1px solid rgba(255,255,255,.6);
    }

    .brand-mark span {
      width: 0;
      height: 0;
      border-top: 7px solid transparent;
      border-bottom: 7px solid transparent;
      border-left: 11px solid #fff;
      margin-left: 3px;
      filter: drop-shadow(0 2px 4px rgba(29,78,216,.22));
    }

    .brand-text {
      font-size: 16px;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      padding: 4px;
      border-radius: 999px;
      background: rgba(241,245,249,.72);
    }

    .nav-links a {
      padding: 9px 14px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary-dark);
      background: #fff;
      box-shadow: 0 8px 22px rgba(30,64,175,.07);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      padding: 13px 20px;
      font-size: 15px;
      line-height: 1;
      font-weight: 800;
      border: 1px solid transparent;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
      min-height: 46px;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 14px 26px rgba(59,130,246,.24);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(59,130,246,.32);
      background: linear-gradient(135deg, #2563EB, #1E40AF);
    }

    .btn-secondary {
      color: var(--primary-dark);
      background: rgba(255,255,255,.88);
      border-color: var(--border-strong);
      box-shadow: 0 10px 22px rgba(30,64,175,.06);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: #fff;
      border-color: rgba(59,130,246,.38);
      box-shadow: 0 16px 36px rgba(30,64,175,.1);
    }

    .btn-soft {
      color: var(--text);
      background: rgba(219,234,254,.72);
      border-color: rgba(59,130,246,.14);
    }

    .btn-soft:hover {
      color: var(--primary-dark);
      background: #fff;
      transform: translateY(-2px);
    }

    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 999px;
      background: var(--primary-soft);
      position: relative;
    }

    .mobile-toggle i,
    .mobile-toggle i::before,
    .mobile-toggle i::after {
      content: "";
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 999px;
      background: var(--primary-dark);
      position: absolute;
      left: 13px;
      transition: transform .22s var(--ease), top .22s var(--ease), opacity .22s var(--ease);
    }

    .mobile-toggle i {
      top: 21px;
    }

    .mobile-toggle i::before {
      left: 0;
      top: -6px;
    }

    .mobile-toggle i::after {
      left: 0;
      top: 6px;
    }

    .mobile-toggle[aria-expanded="true"] i {
      transform: rotate(45deg);
    }

    .mobile-toggle[aria-expanded="true"] i::before {
      top: 0;
      opacity: 0;
    }

    .mobile-toggle[aria-expanded="true"] i::after {
      top: 0;
      transform: rotate(-90deg);
    }

    main {
      padding-top: 18px;
    }

    .hero {
      position: relative;
      padding: 72px 0 54px;
      overflow: hidden;
    }

    .hero::before,
    .hero::after {
      content: "";
      position: absolute;
      border-radius: 999px;
      pointer-events: none;
      filter: blur(4px);
      opacity: .65;
    }

    .hero::before {
      width: 260px;
      height: 260px;
      right: -90px;
      top: 40px;
      background: radial-gradient(circle, rgba(247,168,200,.42), transparent 68%);
    }

    .hero::after {
      width: 220px;
      height: 220px;
      left: -80px;
      bottom: -30px;
      background: radial-gradient(circle, rgba(59,130,246,.22), transparent 70%);
    }

    .guide-hero-grid {
      display: grid;
      grid-template-columns: 1.03fr .97fr;
      gap: 44px;
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      font-size: 14px;
      font-weight: 800;
      background: rgba(219,234,254,.82);
      border: 1px solid rgba(59,130,246,.18);
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 5px rgba(34,197,94,.12);
    }

    h1 {
      max-width: 760px;
      font-size: clamp(34px, 5vw, 54px);
      line-height: 1.14;
      letter-spacing: -.045em;
      color: var(--text);
      margin-bottom: 20px;
    }

    .hero-lead {
      max-width: 680px;
      color: var(--muted);
      font-size: 18px;
      line-height: 1.85;
      margin-bottom: 26px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 24px;
    }

    .hero-mini {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .badge,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      line-height: 1;
      white-space: nowrap;
    }

    .badge {
      padding: 8px 11px;
      color: var(--primary-dark);
      background: rgba(255,255,255,.78);
      border: 1px solid var(--border);
      box-shadow: 0 8px 18px rgba(30,64,175,.05);
    }

    .tag {
      padding: 8px 10px;
      color: var(--muted);
      background: rgba(248,250,252,.9);
      border: 1px solid rgba(148,163,184,.18);
    }

    .tag.pink {
      color: #BE185D;
      background: rgba(252,231,243,.82);
      border-color: rgba(247,168,200,.42);
    }

    .tag.blue {
      color: var(--primary-dark);
      background: rgba(219,234,254,.86);
      border-color: rgba(59,130,246,.22);
    }

    .tag.purple {
      color: #6D28D9;
      background: rgba(237,233,254,.9);
      border-color: rgba(167,139,250,.28);
    }

    .guide-panel {
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.86);
      border: 1px solid rgba(148,163,184,.22);
      box-shadow: var(--shadow);
      padding: 20px;
      position: relative;
      overflow: hidden;
    }

    .guide-panel::before {
      content: "";
      position: absolute;
      inset: -80px -90px auto auto;
      width: 220px;
      height: 220px;
      border-radius: 999px;
      background: radial-gradient(circle, rgba(167,139,250,.24), transparent 70%);
    }

    .panel-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 16px;
      position: relative;
      z-index: 1;
    }

    .panel-title {
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .panel-dots {
      display: flex;
      gap: 6px;
    }

    .panel-dots span {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--secondary);
    }

    .panel-dots span:nth-child(2) {
      background: var(--primary);
    }

    .panel-dots span:nth-child(3) {
      background: var(--purple);
    }

    .mock-screen {
      min-height: 310px;
      border-radius: 26px;
      padding: 18px;
      background:
        linear-gradient(135deg, rgba(59,130,246,.85), rgba(247,168,200,.70) 55%, rgba(167,139,250,.82)),
        radial-gradient(circle at 20% 20%, rgba(255,255,255,.55), transparent 30%);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .mock-screen::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        radial-gradient(circle at 18% 24%, rgba(255,255,255,.42) 0 2px, transparent 3px),
        radial-gradient(circle at 70% 18%, rgba(255,255,255,.32) 0 2px, transparent 3px),
        radial-gradient(circle at 82% 70%, rgba(255,255,255,.28) 0 2px, transparent 3px);
      background-size: 72px 72px;
      opacity: .78;
    }

    .mock-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr 132px;
      gap: 14px;
      height: 100%;
      align-items: stretch;
    }

    .mock-main-card {
      border-radius: 22px;
      padding: 18px;
      background: rgba(255,255,255,.20);
      border: 1px solid rgba(255,255,255,.34);
      backdrop-filter: blur(10px);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 270px;
    }

    .play-circle {
      width: 68px;
      height: 68px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(255,255,255,.26);
      border: 1px solid rgba(255,255,255,.46);
      box-shadow: 0 18px 40px rgba(30,64,175,.18);
    }

    .play-circle span {
      width: 0;
      height: 0;
      border-top: 12px solid transparent;
      border-bottom: 12px solid transparent;
      border-left: 18px solid #fff;
      margin-left: 4px;
    }

    .mock-caption strong {
      display: block;
      font-size: 22px;
      line-height: 1.25;
      margin-bottom: 8px;
      letter-spacing: -.02em;
    }

    .mock-caption p {
      color: rgba(255,255,255,.86);
      font-size: 14px;
      line-height: 1.65;
    }

    .mock-side {
      display: grid;
      gap: 12px;
    }

    .mock-mini {
      border-radius: 18px;
      background: rgba(255,255,255,.22);
      border: 1px solid rgba(255,255,255,.34);
      padding: 12px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 82px;
    }

    .mock-mini b {
      font-size: 13px;
    }

    .mock-mini span {
      font-size: 12px;
      color: rgba(255,255,255,.86);
    }

    .section {
      padding: var(--section) 0;
    }

    .section.compact {
      padding-top: 48px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-kicker {
      color: var(--primary-dark);
      font-size: 14px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    h2 {
      font-size: clamp(28px, 3.4vw, 38px);
      line-height: 1.2;
      letter-spacing: -.035em;
      color: var(--text);
    }

    .section-desc {
      max-width: 540px;
      color: var(--muted);
      font-size: 16px;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      counter-reset: guide;
    }

    .step-card {
      position: relative;
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.86);
      border: 1px solid var(--border);
      box-shadow: 0 14px 38px rgba(30,64,175,.06);
      padding: 24px;
      min-height: 250px;
      overflow: hidden;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
      counter-increment: guide;
    }

    .step-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-strong);
    }

    .step-card::before {
      content: "0" counter(guide);
      position: absolute;
      right: 18px;
      top: 10px;
      color: rgba(59,130,246,.10);
      font-size: 64px;
      font-weight: 950;
      line-height: 1;
      letter-spacing: -.05em;
    }

    .step-icon {
      width: 48px;
      height: 48px;
      border-radius: 17px;
      display: grid;
      place-items: center;
      font-size: 22px;
      margin-bottom: 20px;
      background: linear-gradient(135deg, var(--primary-soft), #fff);
      border: 1px solid rgba(59,130,246,.16);
      box-shadow: 0 10px 24px rgba(30,64,175,.06);
    }

    .step-card:nth-child(2) .step-icon {
      background: linear-gradient(135deg, var(--secondary-soft), #fff);
    }

    .step-card:nth-child(3) .step-icon {
      background: linear-gradient(135deg, var(--purple-soft), #fff);
    }

    .step-card h3,
    .scene-card h3,
    .info-card h3,
    .matrix-card h3,
    .faq-question h3 {
      font-size: 20px;
      line-height: 1.35;
      letter-spacing: -.02em;
      margin-bottom: 10px;
    }

    .step-card p,
    .scene-card p,
    .info-card p,
    .matrix-card p,
    .faq-answer p {
      color: var(--muted);
      font-size: 15px;
    }

    .tip-box {
      margin-top: 22px;
      display: flex;
      gap: 14px;
      align-items: flex-start;
      padding: 18px 20px;
      border-radius: 22px;
      background: linear-gradient(135deg, rgba(219,234,254,.74), rgba(252,231,243,.52));
      border: 1px solid rgba(59,130,246,.16);
    }

    .tip-box strong {
      display: block;
      margin-bottom: 3px;
      color: var(--primary-dark);
    }

    .tip-box p {
      color: var(--muted);
      font-size: 15px;
    }

    .scenes {
      background: linear-gradient(180deg, rgba(219,234,254,.32), rgba(255,255,255,.2));
      border-block: 1px solid rgba(148,163,184,.14);
    }

    .scene-layout {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 22px;
      align-items: stretch;
    }

    .scene-banner {
      min-height: 420px;
      border-radius: var(--radius-xl);
      padding: 30px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(29,78,216,.90), rgba(59,130,246,.76) 42%, rgba(247,168,200,.78)),
        radial-gradient(circle at 72% 22%, rgba(255,255,255,.48), transparent 28%);
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .scene-banner::after {
      content: "";
      position: absolute;
      right: -50px;
      bottom: -70px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: rgba(255,255,255,.16);
      border: 1px solid rgba(255,255,255,.22);
    }

    .scene-banner h2 {
      color: #fff;
      max-width: 520px;
    }

    .scene-banner p {
      max-width: 560px;
      color: rgba(255,255,255,.86);
      font-size: 17px;
      margin-top: 12px;
    }

    .floating-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      position: relative;
      z-index: 1;
    }

    .floating-tags .tag {
      color: #fff;
      background: rgba(255,255,255,.18);
      border-color: rgba(255,255,255,.28);
    }

    .scene-list {
      display: grid;
      gap: 16px;
    }

    .scene-card {
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.88);
      border: 1px solid var(--border);
      padding: 22px;
      box-shadow: 0 14px 36px rgba(30,64,175,.06);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }

    .scene-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: var(--shadow-hover);
    }

    .scene-card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 10px;
    }

    .scene-emoji {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: var(--secondary-soft);
      font-size: 21px;
    }

    .guide-bento {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      grid-template-rows: auto auto;
      gap: 20px;
    }

    .info-card {
      border-radius: var(--radius-lg);
      padding: 26px;
      background: rgba(255,255,255,.86);
      border: 1px solid var(--border);
      box-shadow: 0 14px 40px rgba(30,64,175,.06);
      overflow: hidden;
      position: relative;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }

    .info-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: var(--shadow-hover);
    }

    .info-card.large {
      grid-row: span 2;
      min-height: 430px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(247,250,255,.82)),
        radial-gradient(circle at 90% 10%, rgba(247,168,200,.18), transparent 34%);
    }

    .info-card h3 {
      font-size: 23px;
    }

    .quality-bars {
      display: grid;
      gap: 14px;
      margin-top: 24px;
    }

    .quality-row {
      display: grid;
      grid-template-columns: 86px 1fr 52px;
      align-items: center;
      gap: 12px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
    }

    .bar {
      height: 10px;
      border-radius: 999px;
      background: rgba(226,232,240,.86);
      overflow: hidden;
    }

    .bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
    }

    .device-stack {
      margin-top: 22px;
      display: grid;
      gap: 12px;
    }

    .device-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      border-radius: 18px;
      padding: 13px 15px;
      background: rgba(248,250,252,.82);
      border: 1px solid rgba(148,163,184,.18);
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .device-item b {
      color: var(--text);
    }

    .matrix {
      background: var(--surface);
    }

    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .matrix-card {
      border-radius: var(--radius-lg);
      padding: 22px;
      background: linear-gradient(180deg, #fff, #F8FBFF);
      border: 1px solid var(--border);
      box-shadow: 0 14px 36px rgba(30,64,175,.055);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }

    .matrix-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: var(--shadow-hover);
    }

    .matrix-card .score {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      margin-bottom: 14px;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(219,234,254,.76);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 900;
    }

    .matrix-list {
      list-style: none;
      display: grid;
      gap: 10px;
      margin-top: 16px;
    }

    .matrix-list li {
      position: relative;
      padding-left: 20px;
      color: var(--muted);
      font-size: 14px;
    }

    .matrix-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: .72em;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
    }

    .search-card {
      border-radius: var(--radius-xl);
      padding: 30px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.92), rgba(219,234,254,.55)),
        radial-gradient(circle at 88% 20%, rgba(247,168,200,.18), transparent 30%);
      border: 1px solid rgba(59,130,246,.16);
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 26px;
      align-items: center;
    }

    .search-card h2 {
      font-size: clamp(26px, 3vw, 34px);
      margin-bottom: 10px;
    }

    .search-card p {
      color: var(--muted);
    }

    .search-form {
      display: flex;
      gap: 12px;
      padding: 8px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: 0 12px 32px rgba(30,64,175,.06);
    }

    .search-form input {
      flex: 1;
      min-width: 0;
      min-height: 48px;
      border: 0;
      border-radius: 999px;
      padding: 0 16px;
      color: var(--text);
      background: transparent;
      outline: none;
    }

    .search-form input::placeholder {
      color: var(--muted-2);
    }

    .search-form:focus-within {
      border-color: rgba(59,130,246,.42);
      box-shadow: 0 0 0 5px rgba(59,130,246,.10), 0 16px 40px rgba(30,64,175,.08);
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }

    .faq-item {
      border-radius: 22px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,.9);
      box-shadow: 0 12px 32px rgba(30,64,175,.05);
      overflow: hidden;
      transition: border-color .22s var(--ease), box-shadow .22s var(--ease);
    }

    .faq-item.open {
      border-color: rgba(59,130,246,.34);
      box-shadow: 0 18px 44px rgba(30,64,175,.09);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      text-align: left;
      padding: 20px 20px 18px;
      color: var(--text);
    }

    .faq-question h3 {
      margin: 0;
      font-size: 18px;
    }

    .faq-icon {
      width: 30px;
      height: 30px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      flex: 0 0 30px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-size: 20px;
      font-weight: 800;
      transition: transform .22s var(--ease), background .22s var(--ease);
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--secondary-soft);
      color: #BE185D;
    }

    .faq-answer {
      padding: 0 20px 20px;
    }

    .faq-answer p {
      border-top: 1px solid rgba(148,163,184,.16);
      padding-top: 14px;
    }

    .cta-card {
      border-radius: 34px;
      padding: 44px;
      background:
        linear-gradient(135deg, rgba(59,130,246,.92), rgba(167,139,250,.78) 48%, rgba(247,168,200,.76)),
        radial-gradient(circle at 16% 20%, rgba(255,255,255,.34), transparent 28%);
      color: #fff;
      box-shadow: 0 26px 70px rgba(59,130,246,.18);
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: center;
      gap: 28px;
      overflow: hidden;
      position: relative;
    }

    .cta-card::after {
      content: "";
      position: absolute;
      right: -70px;
      top: -90px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(255,255,255,.16);
    }

    .cta-card h2 {
      color: #fff;
      max-width: 720px;
    }

    .cta-card p {
      max-width: 680px;
      color: rgba(255,255,255,.86);
      margin-top: 12px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .cta-actions .btn-secondary {
      background: rgba(255,255,255,.96);
      color: var(--primary-dark);
      border-color: rgba(255,255,255,.4);
    }

    .cta-actions .btn-soft {
      background: rgba(255,255,255,.18);
      color: #fff;
      border-color: rgba(255,255,255,.28);
    }

    .site-footer {
      margin-top: 48px;
      padding: 58px 0 28px;
      background:
        linear-gradient(180deg, rgba(238,246,255,.72), rgba(255,255,255,.96));
      border-top: 1px solid rgba(148,163,184,.18);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .8fr .8fr;
      gap: 44px;
      margin-bottom: 34px;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 14px;
      letter-spacing: -.02em;
    }

    .footer-text {
      max-width: 520px;
      color: var(--muted);
      font-size: 15px;
    }

    .footer-col h3 {
      font-size: 16px;
      margin-bottom: 14px;
      letter-spacing: -.02em;
    }

    .footer-links {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 15px;
    }

    .footer-links a:hover {
      color: var(--primary-dark);
      transform: translateX(3px);
      display: inline-block;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-top: 22px;
      border-top: 1px solid rgba(148,163,184,.18);
      color: var(--muted);
      font-size: 14px;
    }

    @media (max-width: 1024px) {
      .container {
        width: min(100% - 48px, var(--container));
      }

      .nav-pill {
        border-radius: 30px;
      }

      .brand-text {
        max-width: 168px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .nav-links a {
        padding: 9px 10px;
      }

      .guide-hero-grid,
      .scene-layout,
      .search-card {
        grid-template-columns: 1fr;
      }

      .steps-grid,
      .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .guide-bento {
        grid-template-columns: 1fr;
      }

      .info-card.large {
        grid-row: auto;
      }

      .cta-card {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      :root {
        --section: 66px;
      }

      .container {
        width: min(100% - 36px, var(--container));
      }

      .site-header {
        top: 8px;
        padding: 8px 0;
      }

      .nav-pill {
        position: relative;
        padding: 9px;
        border-radius: 24px;
      }

      .brand-text {
        font-size: 15px;
        max-width: 190px;
      }

      .nav-links {
        position: absolute;
        left: 12px;
        right: 12px;
        top: calc(100% + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        border-radius: 22px;
        background: rgba(255,255,255,.96);
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links a {
        padding: 12px 14px;
        text-align: center;
      }

      .nav-actions .btn {
        display: none;
      }

      .mobile-toggle {
        display: inline-grid;
      }

      .hero {
        padding: 46px 0 36px;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .hero-mini {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 6px;
        scrollbar-width: none;
      }

      .hero-mini::-webkit-scrollbar {
        display: none;
      }

      .mock-content {
        grid-template-columns: 1fr;
      }

      .mock-side {
        grid-template-columns: repeat(3, 1fr);
      }

      .mock-mini {
        min-height: 78px;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 12px;
      }

      .scene-banner {
        min-height: 360px;
        padding: 24px;
      }

      .faq-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        flex-basis: 34px;
      }

      .brand-text {
        max-width: 160px;
        font-size: 14px;
      }

      .steps-grid,
      .matrix-grid {
        grid-template-columns: 1fr;
      }

      .guide-panel,
      .search-card,
      .cta-card {
        padding: 20px;
        border-radius: 26px;
      }

      .mock-screen {
        min-height: 280px;
        padding: 14px;
      }

      .mock-side {
        grid-template-columns: 1fr;
      }

      .search-form {
        border-radius: 24px;
        flex-direction: column;
      }

      .search-form .btn {
        width: 100%;
      }

      .quality-row {
        grid-template-columns: 76px 1fr 44px;
        gap: 9px;
      }

      .scene-card,
      .step-card,
      .info-card,
      .matrix-card {
        padding: 20px;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #3B82F6;
      --primary-deep: #1D4ED8;
      --primary-soft: #DBEAFE;
      --secondary: #F7A8C8;
      --secondary-soft: #FCE7F3;
      --purple: #A78BFA;
      --purple-soft: #EDE9FE;
      --success: #22C55E;
      --warning: #F59E0B;
      --bg: #F7FAFF;
      --bg-soft: #FBFCFF;
      --surface: #FFFFFF;
      --surface-strong: #F8FBFF;
      --text: #172033;
      --muted: #64748B;
      --muted-2: #94A3B8;
      --border: rgba(148, 163, 184, 0.24);
      --border-strong: rgba(59, 130, 246, 0.22);
      --shadow: 0 18px 50px rgba(30, 64, 175, 0.08);
      --shadow-hover: 0 24px 70px rgba(30, 64, 175, 0.14);
      --radius-xl: 30px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 14px;
      --pill: 999px;
      --container: 1180px;
      --section: 92px;
      --ease: 180ms ease;
      --font: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      text-size-adjust: 100%;
    }

    body {
      min-height: 100vh;
      font-family: var(--font);
      color: var(--text);
      background:
        radial-gradient(circle at 8% 8%, rgba(247, 168, 200, 0.23), transparent 30%),
        radial-gradient(circle at 92% 10%, rgba(167, 139, 250, 0.22), transparent 28%),
        linear-gradient(180deg, #F7FAFF 0%, #FFFFFF 42%, #F8FBFF 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--ease), background var(--ease), transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: none;
    }

    img,
    svg {
      display: block;
      max-width: 100%;
    }

    ::selection {
      background: rgba(59, 130, 246, 0.18);
      color: var(--primary-deep);
    }

    :focus-visible {
      outline: 3px solid rgba(59, 130, 246, 0.32);
      outline-offset: 3px;
      border-radius: 12px;
    }

    .container {
      width: min(100% - 64px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 18px;
      z-index: 50;
      padding: 18px 0 4px;
    }

    .nav-pill {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      min-height: 68px;
      padding: 10px 12px 10px 16px;
      border: 1px solid rgba(148, 163, 184, 0.22);
      border-radius: var(--pill);
      background: rgba(255, 255, 255, 0.88);
      box-shadow: 0 18px 52px rgba(30, 64, 175, 0.10);
      backdrop-filter: blur(16px);
    }

    .brand,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .brand {
      padding: 6px 8px;
      border-radius: var(--pill);
    }

    .brand:hover {
      background: rgba(219, 234, 254, 0.62);
    }

    .brand-mark {
      position: relative;
      display: inline-grid;
      flex: 0 0 38px;
      width: 38px;
      height: 38px;
      place-items: center;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--secondary) 58%, var(--purple));
      box-shadow: 0 12px 28px rgba(59, 130, 246, 0.25);
    }

    .brand-mark span {
      width: 0;
      height: 0;
      margin-left: 3px;
      border-top: 8px solid transparent;
      border-bottom: 8px solid transparent;
      border-left: 12px solid #fff;
      filter: drop-shadow(0 2px 2px rgba(30, 41, 59, 0.12));
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      right: -2px;
      top: 3px;
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: #fff;
      opacity: 0.82;
    }

    .brand-text {
      max-width: 210px;
      color: var(--text);
      font-size: 16px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 4px;
      border-radius: var(--pill);
      background: rgba(248, 251, 255, 0.78);
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 8px 15px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--pill);
      white-space: nowrap;
    }

    .nav-links a:hover {
      color: var(--primary-deep);
      background: rgba(219, 234, 254, 0.78);
    }

    .nav-links a.active {
      color: var(--primary-deep);
      background: var(--primary-soft);
      box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.12);
    }

    .nav-actions {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 12px 20px;
      border-radius: var(--pill);
      font-size: 15px;
      font-weight: 800;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-deep));
      box-shadow: 0 14px 30px rgba(59, 130, 246, 0.28);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: linear-gradient(135deg, #2563EB, #1E40AF);
      box-shadow: 0 18px 42px rgba(59, 130, 246, 0.36);
    }

    .btn-secondary {
      color: var(--primary-deep);
      background: rgba(255, 255, 255, 0.92);
      border-color: rgba(59, 130, 246, 0.18);
      box-shadow: 0 10px 26px rgba(30, 64, 175, 0.06);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: #EFF6FF;
      border-color: rgba(59, 130, 246, 0.3);
    }

    .btn-soft {
      color: var(--primary-deep);
      background: var(--primary-soft);
      border-color: rgba(59, 130, 246, 0.16);
    }

    .btn-soft:hover {
      transform: translateY(-2px);
      background: #BFDBFE;
    }

    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-soft);
      border: 1px solid rgba(59, 130, 246, 0.14);
      position: relative;
    }

    .mobile-toggle i,
    .mobile-toggle i::before,
    .mobile-toggle i::after {
      position: absolute;
      left: 12px;
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: var(--primary-deep);
      transition: transform var(--ease), opacity var(--ease), top var(--ease);
    }

    .mobile-toggle i {
      top: 21px;
    }

    .mobile-toggle i::before,
    .mobile-toggle i::after {
      content: "";
      left: 0;
    }

    .mobile-toggle i::before {
      top: -6px;
    }

    .mobile-toggle i::after {
      top: 6px;
    }

    .mobile-toggle[aria-expanded="true"] i {
      transform: rotate(45deg);
    }

    .mobile-toggle[aria-expanded="true"] i::before {
      top: 0;
      opacity: 0;
    }

    .mobile-toggle[aria-expanded="true"] i::after {
      top: 0;
      transform: rotate(-90deg);
    }

    main {
      position: relative;
    }

    .hero {
      position: relative;
      padding: 72px 0 58px;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 14% 24%, rgba(59, 130, 246, 0.15), transparent 24%),
        radial-gradient(circle at 82% 30%, rgba(247, 168, 200, 0.18), transparent 26%);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
      gap: 44px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 8px 14px;
      border-radius: var(--pill);
      color: var(--primary-deep);
      background: rgba(219, 234, 254, 0.72);
      border: 1px solid rgba(59, 130, 246, 0.16);
      font-size: 14px;
      font-weight: 800;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.12);
    }

    h1 {
      margin-top: 20px;
      max-width: 760px;
      color: var(--text);
      font-size: clamp(34px, 5vw, 54px);
      line-height: 1.14;
      letter-spacing: -0.055em;
    }

    .hero-lead {
      margin-top: 22px;
      max-width: 680px;
      color: var(--muted);
      font-size: 18px;
      line-height: 1.85;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .search-panel {
      margin-top: 26px;
      padding: 10px;
      max-width: 650px;
      display: flex;
      align-items: center;
      gap: 10px;
      border: 1px solid rgba(59, 130, 246, 0.16);
      border-radius: var(--pill);
      background: rgba(255, 255, 255, 0.9);
      box-shadow: 0 16px 42px rgba(30, 64, 175, 0.08);
    }

    .search-panel input {
      flex: 1;
      min-width: 0;
      min-height: 46px;
      border: 0;
      outline: 0;
      padding: 0 14px;
      color: var(--text);
      background: transparent;
      font-size: 15px;
    }

    .search-panel input::placeholder {
      color: var(--muted-2);
    }

    .search-panel:focus-within {
      border-color: rgba(59, 130, 246, 0.42);
      box-shadow: 0 0 0 5px rgba(59, 130, 246, 0.11), 0 18px 48px rgba(30, 64, 175, 0.1);
    }

    .hero-card {
      position: relative;
      padding: 22px;
      border: 1px solid rgba(148, 163, 184, 0.20);
      border-radius: 34px;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 251, 255, 0.9));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-card::before {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      right: -80px;
      top: -90px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(247, 168, 200, 0.36), transparent 65%);
    }

    .preview-cover {
      position: relative;
      min-height: 250px;
      border-radius: 26px;
      overflow: hidden;
      background:
        radial-gradient(circle at 22% 24%, rgba(255, 255, 255, 0.72), transparent 9%),
        radial-gradient(circle at 72% 28%, rgba(255, 255, 255, 0.42), transparent 8%),
        linear-gradient(135deg, #93C5FD 0%, #FBCFE8 48%, #C4B5FD 100%);
    }

    .preview-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px);
      background-size: 28px 28px;
      opacity: .55;
    }

    .play-bubble {
      position: absolute;
      inset: 50% auto auto 50%;
      transform: translate(-50%, -50%);
      z-index: 2;
      display: grid;
      place-items: center;
      width: 76px;
      height: 76px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.86);
      box-shadow: 0 18px 46px rgba(30, 64, 175, 0.18);
    }

    .play-bubble::before {
      content: "";
      width: 0;
      height: 0;
      margin-left: 5px;
      border-top: 13px solid transparent;
      border-bottom: 13px solid transparent;
      border-left: 19px solid var(--primary-deep);
    }

    .cover-badge {
      position: absolute;
      z-index: 3;
      left: 18px;
      top: 18px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 12px;
      border-radius: var(--pill);
      color: var(--primary-deep);
      background: rgba(255,255,255,.84);
      font-weight: 900;
      font-size: 13px;
      box-shadow: 0 10px 22px rgba(30, 64, 175, 0.12);
    }

    .hero-list {
      position: relative;
      z-index: 2;
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .hero-list-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid rgba(148, 163, 184, 0.18);
    }

    .hero-list-item strong {
      display: block;
      font-size: 15px;
      line-height: 1.3;
    }

    .hero-list-item span {
      display: block;
      margin-top: 2px;
      color: var(--muted);
      font-size: 13px;
    }

    .mini-bar {
      width: 92px;
      height: 8px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      box-shadow: inset -28px 0 0 rgba(226, 232, 240, 0.72);
    }

    .section {
      padding: var(--section) 0;
    }

    .section-tight {
      padding: 64px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 34px;
    }

    .section-kicker {
      display: inline-flex;
      margin-bottom: 10px;
      color: var(--primary-deep);
      font-size: 14px;
      font-weight: 900;
    }

    h2 {
      color: var(--text);
      font-size: clamp(28px, 3.3vw, 38px);
      line-height: 1.22;
      letter-spacing: -0.04em;
    }

    h3 {
      color: var(--text);
      font-size: 21px;
      line-height: 1.34;
      letter-spacing: -0.025em;
    }

    .section-desc {
      max-width: 620px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
    }

    .trust-strip {
      padding: 18px;
      border: 1px solid var(--border);
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.82);
      box-shadow: var(--shadow);
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .trust-item {
      padding: 18px;
      border-radius: 22px;
      background: linear-gradient(180deg, #FFFFFF, #F8FBFF);
      border: 1px solid rgba(148, 163, 184, 0.18);
    }

    .trust-item strong {
      display: block;
      color: var(--primary-deep);
      font-size: 24px;
      line-height: 1.1;
    }

    .trust-item span {
      display: block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 14px;
    }

    .filter-wrap {
      border-radius: var(--radius-xl);
      background: linear-gradient(135deg, rgba(219, 234, 254, 0.72), rgba(252, 231, 243, 0.68));
      border: 1px solid rgba(59, 130, 246, 0.16);
      padding: 20px;
      overflow: hidden;
    }

    .filter-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag,
    .badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      min-height: 32px;
      padding: 7px 12px;
      border-radius: var(--pill);
      font-size: 13px;
      font-weight: 800;
      line-height: 1;
      white-space: nowrap;
    }

    .tag {
      color: var(--primary-deep);
      background: rgba(255,255,255,.88);
      border: 1px solid rgba(59, 130, 246, 0.15);
    }

    .tag:hover,
    .tag.is-active {
      color: #fff;
      background: var(--primary);
      border-color: var(--primary);
      transform: translateY(-1px);
    }

    .badge {
      color: var(--primary-deep);
      background: var(--primary-soft);
    }

    .badge-pink {
      color: #BE185D;
      background: var(--secondary-soft);
    }

    .badge-purple {
      color: #6D28D9;
      background: var(--purple-soft);
    }

    .badge-green {
      color: #15803D;
      background: rgba(34, 197, 94, 0.12);
    }

    .recommend-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
      gap: 24px;
      align-items: stretch;
    }

    .feature-card,
    .compact-card,
    .anime-card,
    .info-card,
    .faq-item,
    .notice-card {
      border: 1px solid rgba(148, 163, 184, 0.20);
      background: rgba(255, 255, 255, 0.9);
      box-shadow: var(--shadow);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .feature-card:hover,
    .compact-card:hover,
    .anime-card:hover,
    .info-card:hover,
    .faq-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(59, 130, 246, 0.25);
    }

    .feature-card {
      display: grid;
      grid-template-columns: .82fr 1fr;
      gap: 24px;
      min-height: 100%;
      padding: 22px;
      border-radius: 32px;
      overflow: hidden;
    }

    .cover-art {
      position: relative;
      min-height: 370px;
      border-radius: 26px;
      overflow: hidden;
      background:
        radial-gradient(circle at 30% 18%, rgba(255,255,255,.8), transparent 10%),
        radial-gradient(circle at 70% 18%, rgba(255,255,255,.42), transparent 12%),
        linear-gradient(145deg, #60A5FA 0%, #F9A8D4 54%, #A78BFA 100%);
    }

    .cover-art::before {
      content: "";
      position: absolute;
      inset: 18px;
      border: 1px solid rgba(255,255,255,.55);
      border-radius: 22px;
    }

    .cover-art::after {
      content: "HD";
      position: absolute;
      right: 18px;
      top: 18px;
      padding: 8px 12px;
      border-radius: var(--pill);
      background: rgba(255,255,255,.88);
      color: var(--primary-deep);
      font-weight: 950;
      letter-spacing: .04em;
      box-shadow: 0 12px 26px rgba(30, 64, 175, 0.14);
    }

    .cover-lines {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 24px;
      display: grid;
      gap: 10px;
      z-index: 2;
    }

    .cover-lines span {
      display: block;
      height: 10px;
      border-radius: 99px;
      background: rgba(255,255,255,.72);
    }

    .cover-lines span:nth-child(1) {
      width: 72%;
    }

    .cover-lines span:nth-child(2) {
      width: 48%;
    }

    .feature-content {
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 8px 4px;
    }

    .feature-content p {
      margin-top: 14px;
      color: var(--muted);
    }

    .meta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 18px 0 22px;
    }

    .card-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: auto;
    }

    .compact-list {
      display: grid;
      gap: 14px;
    }

    .compact-card {
      display: grid;
      grid-template-columns: 96px minmax(0, 1fr);
      gap: 14px;
      padding: 14px;
      border-radius: 24px;
    }

    .compact-thumb {
      min-height: 112px;
      border-radius: 18px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(145deg, #BFDBFE, #FBCFE8 55%, #DDD6FE);
    }

    .compact-thumb::after {
      content: "HD";
      position: absolute;
      left: 10px;
      top: 10px;
      padding: 5px 8px;
      border-radius: var(--pill);
      color: var(--primary-deep);
      background: rgba(255,255,255,.86);
      font-size: 11px;
      font-weight: 900;
    }

    .compact-card p {
      margin-top: 6px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      margin-top: 10px;
      color: var(--primary-deep);
      font-size: 14px;
      font-weight: 900;
    }

    .text-link::after {
      content: "→";
      transition: transform var(--ease);
    }

    .text-link:hover::after {
      transform: translateX(4px);
    }

    .grid-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
      margin-top: 24px;
    }

    .anime-card {
      border-radius: 28px;
      overflow: hidden;
    }

    .anime-cover {
      position: relative;
      aspect-ratio: 4 / 3;
      overflow: hidden;
      background: linear-gradient(145deg, #DBEAFE 0%, #FCE7F3 48%, #EDE9FE 100%);
    }

    .anime-cover::before {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 18px;
      background:
        radial-gradient(circle at 28% 26%, rgba(59, 130, 246, 0.42), transparent 18%),
        radial-gradient(circle at 64% 42%, rgba(247, 168, 200, 0.62), transparent 22%),
        linear-gradient(135deg, rgba(255,255,255,.56), rgba(255,255,255,.16));
      transition: transform var(--ease);
    }

    .anime-card:hover .anime-cover::before {
      transform: scale(1.06);
    }

    .hd-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      z-index: 2;
      padding: 6px 10px;
      color: #fff;
      font-size: 12px;
      font-weight: 950;
      border-radius: var(--pill);
      background: linear-gradient(135deg, var(--primary), var(--purple));
      box-shadow: 0 10px 22px rgba(59, 130, 246, 0.22);
    }

    .anime-body {
      padding: 20px;
    }

    .anime-body p {
      margin-top: 8px;
      color: var(--muted);
      font-size: 15px;
    }

    .info-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

    .info-card {
      padding: 28px;
      border-radius: 30px;
    }

    .info-card .icon {
      display: grid;
      place-items: center;
      width: 50px;
      height: 50px;
      margin-bottom: 16px;
      border-radius: 18px;
      color: var(--primary-deep);
      background: linear-gradient(135deg, var(--primary-soft), var(--secondary-soft));
      font-weight: 950;
      font-size: 20px;
    }

    .info-card p {
      margin-top: 10px;
      color: var(--muted);
    }

    .check-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      color: var(--muted);
      line-height: 1.7;
    }

    .check-list li::before {
      content: "✓";
      display: inline-grid;
      place-items: center;
      flex: 0 0 22px;
      width: 22px;
      height: 22px;
      margin-top: 3px;
      border-radius: 50%;
      color: #fff;
      background: var(--success);
      font-size: 13px;
      font-weight: 900;
    }

    .notice-card {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 28px;
      align-items: center;
      padding: 30px;
      border-radius: 32px;
      background:
        radial-gradient(circle at 12% 18%, rgba(247, 168, 200, 0.22), transparent 28%),
        linear-gradient(135deg, #FFFFFF, #EFF6FF);
    }

    .rank-box {
      display: grid;
      gap: 12px;
      padding: 18px;
      border-radius: 24px;
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(148, 163, 184, 0.18);
    }

    .rank-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid rgba(148, 163, 184, 0.14);
    }

    .rank-num {
      display: grid;
      place-items: center;
      flex: 0 0 34px;
      width: 34px;
      height: 34px;
      border-radius: 12px;
      color: var(--primary-deep);
      background: var(--primary-soft);
      font-weight: 950;
    }

    .rank-item strong {
      display: block;
      line-height: 1.3;
    }

    .rank-item span {
      color: var(--muted);
      font-size: 13px;
    }

    .faq-list {
      display: grid;
      gap: 14px;
      max-width: 920px;
      margin: 0 auto;
    }

    .faq-item {
      border-radius: 22px;
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 22px;
      color: var(--text);
      text-align: left;
      font-size: 17px;
      font-weight: 900;
    }

    .faq-question span {
      flex: 1;
    }

    .faq-icon {
      display: grid;
      place-items: center;
      flex: 0 0 30px;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      color: var(--primary-deep);
      background: var(--primary-soft);
      transition: transform var(--ease);
    }

    .faq-icon::before {
      content: "+";
      font-weight: 950;
      line-height: 1;
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      color: var(--muted);
      line-height: 1.8;
    }

    .faq-item.is-open {
      border-color: rgba(59, 130, 246, 0.32);
      background: #fff;
    }

    .faq-item.is-open .faq-answer {
      display: block;
    }

    .faq-item.is-open .faq-icon {
      transform: rotate(45deg);
      background: var(--secondary-soft);
      color: #BE185D;
    }

    .cta-panel {
      position: relative;
      padding: 42px;
      border-radius: 34px;
      overflow: hidden;
      background:
        radial-gradient(circle at 14% 18%, rgba(255,255,255,.62), transparent 16%),
        linear-gradient(135deg, #DBEAFE 0%, #FCE7F3 52%, #EDE9FE 100%);
      border: 1px solid rgba(59, 130, 246, 0.14);
      box-shadow: var(--shadow);
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      right: -70px;
      bottom: -80px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: rgba(255,255,255,.36);
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
    }

    .cta-panel p {
      margin-top: 12px;
      max-width: 720px;
      color: #475569;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .site-footer {
      margin-top: 42px;
      padding: 56px 0 28px;
      background: #EEF6FF;
      border-top: 1px solid rgba(148, 163, 184, 0.20);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .75fr .75fr;
      gap: 36px;
      align-items: start;
    }

    .footer-brand {
      font-size: 18px;
      color: var(--text);
    }

    .footer-text {
      margin-top: 14px;
      max-width: 470px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .footer-col h3 {
      margin-bottom: 14px;
      font-size: 16px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
      list-style: none;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 15px;
    }

    .footer-links a:hover {
      color: var(--primary-deep);
      padding-left: 4px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      margin-top: 38px;
      padding-top: 22px;
      color: var(--muted);
      font-size: 14px;
      border-top: 1px solid rgba(148, 163, 184, 0.22);
    }

    @media (max-width: 1024px) {
      .container {
        width: min(100% - 48px, var(--container));
      }

      .nav-pill {
        gap: 10px;
      }

      .brand-text {
        max-width: 170px;
      }

      .nav-links a {
        padding-inline: 12px;
      }

      .hero-grid,
      .recommend-layout,
      .notice-card {
        grid-template-columns: 1fr;
      }

      .hero-card {
        max-width: 680px;
      }

      .feature-card {
        grid-template-columns: 1fr;
      }

      .cover-art {
        min-height: 290px;
      }

      .grid-cards {
        grid-template-columns: repeat(2, 1fr);
      }

      .trust-grid,
      .info-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .cta-inner {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }
    }

    @media (max-width: 768px) {
      :root {
        --section: 68px;
      }

      .container {
        width: min(100% - 36px, var(--container));
      }

      .site-header {
        top: 10px;
        padding-top: 10px;
      }

      .nav-pill {
        position: relative;
        min-height: 62px;
        padding: 9px 10px 9px 12px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        flex-basis: 34px;
      }

      .brand-text {
        max-width: 164px;
        font-size: 14px;
      }

      .nav-links {
        position: absolute;
        left: 12px;
        right: 12px;
        top: calc(100% + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        border: 1px solid rgba(148, 163, 184, 0.22);
        border-radius: 22px;
        background: rgba(255, 255, 255, 0.96);
        box-shadow: 0 18px 50px rgba(30, 64, 175, 0.14);
      }

      .nav-links.is-open {
        display: flex;
      }

      .nav-links a {
        justify-content: flex-start;
        min-height: 44px;
        padding-inline: 14px;
      }

      .nav-actions .btn {
        display: none;
      }

      .mobile-toggle {
        display: inline-flex;
      }

      .hero {
        padding: 48px 0 36px;
      }

      .hero-lead {
        font-size: 16px;
      }

      .hero-actions,
      .card-actions,
      .cta-actions {
        width: 100%;
      }

      .hero-actions .btn,
      .card-actions .btn,
      .cta-actions .btn {
        flex: 1 1 180px;
      }

      .search-panel {
        align-items: stretch;
        flex-direction: column;
        border-radius: 24px;
      }

      .search-panel input {
        width: 100%;
      }

      .search-panel .btn {
        width: 100%;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
        margin-bottom: 26px;
      }

      .filter-wrap {
        margin-inline: -18px;
        border-radius: 0;
        border-left: 0;
        border-right: 0;
      }

      .filter-row {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 4px;
        scrollbar-width: none;
      }

      .filter-row::-webkit-scrollbar {
        display: none;
      }

      .compact-card {
        grid-template-columns: 82px minmax(0, 1fr);
      }

      .compact-thumb {
        min-height: 100px;
      }

      .grid-cards,
      .trust-grid,
      .info-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
      }

      .cta-panel {
        padding: 30px 22px;
        border-radius: 28px;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      h1 {
        font-size: 34px;
      }

      h2 {
        font-size: 28px;
      }

      .brand-text {
        max-width: 130px;
      }

      .hero-card,
      .feature-card,
      .info-card,
      .notice-card {
        padding: 18px;
        border-radius: 26px;
      }

      .preview-cover {
        min-height: 210px;
      }

      .feature-content h2 {
        font-size: 26px;
      }

      .trust-item {
        padding: 16px;
      }

      .anime-body {
        padding: 18px;
      }

      .footer-brand {
        align-items: flex-start;
      }
    }