/* roulang page: index */
:root{
      --bg:#070B16;
      --bg-2:#080A12;
      --surface:#101827;
      --surface-2:#121525;
      --surface-3:#171B2E;
      --glass:rgba(255,255,255,.055);
      --glass-strong:rgba(255,122,184,.10);
      --line:rgba(255,255,255,.10);
      --line-strong:rgba(255,122,184,.35);
      --text:#F7F4FA;
      --muted:#B8B5C7;
      --weak:#7E8298;
      --pink:#FF7AB8;
      --cyan:#55E6FF;
      --purple:#A879FF;
      --warn:#FFD166;
      --ok:#75F0B2;
      --radius-sm:14px;
      --radius:24px;
      --radius-lg:32px;
      --shadow:0 24px 80px rgba(0,0,0,.32);
      --shadow-soft:0 16px 50px rgba(0,0,0,.24);
      --gradient:linear-gradient(135deg,#FF7AB8 0%,#A879FF 48%,#55E6FF 100%);
      --gradient-soft:linear-gradient(135deg,rgba(255,122,184,.18),rgba(168,121,255,.12),rgba(85,230,255,.12));
      --container:1180px;
      --nav-h:72px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
      background:
        radial-gradient(circle at 12% 5%,rgba(255,122,184,.22),transparent 32%),
        radial-gradient(circle at 84% 18%,rgba(85,230,255,.16),transparent 30%),
        radial-gradient(circle at 52% 78%,rgba(168,121,255,.13),transparent 34%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 58%,#060812);
      color:var(--text);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
      background-size:72px 72px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.55),transparent 74%);
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:-20%;
      pointer-events:none;
      background:
        radial-gradient(circle at 25% 20%,rgba(255,122,184,.08),transparent 18%),
        radial-gradient(circle at 78% 58%,rgba(85,230,255,.07),transparent 22%);
      filter:blur(28px);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit;color:inherit}
    button{border:0;cursor:pointer;background:none}
    ::selection{background:rgba(255,122,184,.35);color:#fff}
    :focus-visible{outline:3px solid rgba(85,230,255,.45);outline-offset:4px;border-radius:12px}

    .container{width:min(100% - 44px,var(--container));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:32px;
      padding:6px 12px;
      border:1px solid rgba(255,209,102,.28);
      border-radius:999px;
      background:rgba(255,209,102,.08);
      color:#FFE3A2;
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--warn);
      box-shadow:0 0 18px rgba(255,209,102,.75);
    }
    .section-head{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(260px,420px);
      gap:28px;
      align-items:end;
      margin-bottom:34px;
    }
    .section-kicker{
      color:var(--cyan);
      font-size:14px;
      font-weight:800;
      letter-spacing:.08em;
      margin-bottom:10px;
    }
    h1,h2,h3{line-height:1.14;letter-spacing:-.035em}
    h1{
      margin-top:18px;
      font-size:clamp(40px,5.2vw,64px);
      font-weight:850;
      max-width:720px;
    }
    h2{font-size:clamp(30px,3.3vw,42px);font-weight:820}
    h3{font-size:clamp(20px,2vw,25px);font-weight:780}
    p{color:var(--muted)}
    .lead{
      margin-top:22px;
      font-size:18px;
      line-height:1.85;
      color:#D7D2E2;
      max-width:650px;
    }
    .muted{color:var(--muted)}
    .weak{color:var(--weak)}
    .gradient-text{
      background:var(--gradient);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      height:var(--nav-h);
      border-bottom:1px solid rgba(255,255,255,.08);
      background:rgba(7,11,22,.62);
      backdrop-filter:blur(18px);
      transition:background .25s var(--ease),box-shadow .25s var(--ease);
    }
    .site-header.is-scrolled{
      background:rgba(7,11,22,.82);
      box-shadow:0 12px 42px rgba(0,0,0,.28);
    }
    .nav{
      height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:11px;
      font-size:18px;
      font-weight:850;
      letter-spacing:-.02em;
      white-space:nowrap;
    }
    .logo-mark{
      width:34px;height:34px;border-radius:12px;
      background:var(--gradient);
      box-shadow:0 0 28px rgba(255,122,184,.28);
      position:relative;
      overflow:hidden;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:7px;
      border-radius:9px;
      border:1px solid rgba(255,255,255,.62);
      background:rgba(7,11,22,.12);
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:30px;
      list-style:none;
    }
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:42px;
      color:#DCD7E8;
      font-size:15px;
      font-weight:650;
      transition:color .22s var(--ease);
    }
    .nav-links a::after{
      content:"";
      position:absolute;
      left:0;right:0;bottom:3px;
      height:2px;
      border-radius:999px;
      background:var(--gradient);
      transform:scaleX(0);
      transform-origin:right;
      transition:transform .24s var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{color:#fff}
    .nav-links a:hover::after,.nav-links a.active::after{
      transform:scaleX(1);
      transform-origin:left;
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      gap:8px;
      height:40px;
      padding:0 15px;
      border-radius:999px;
      border:1px solid rgba(85,230,255,.24);
      background:rgba(85,230,255,.07);
      color:#D9FAFF;
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .menu-btn{
      display:none;
      width:44px;height:44px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.05);
    }
    .menu-btn span{
      display:block;
      width:20px;height:2px;
      margin:5px auto;
      border-radius:999px;
      background:#fff;
      transition:.22s var(--ease);
    }

    .hero{
      position:relative;
      padding:92px 0 72px;
      min-height:720px;
      display:flex;
      align-items:center;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.02fr 1.18fr;
      gap:48px;
      align-items:center;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:14px;
      margin-top:32px;
    }
    .age-note{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--weak);
      font-size:14px;
      margin-top:16px;
    }
    .age-note strong{color:var(--warn)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 22px;
      border-radius:999px;
      font-weight:800;
      font-size:15px;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:var(--gradient);
      box-shadow:0 12px 36px rgba(255,122,184,.24),0 0 0 1px rgba(255,255,255,.13) inset;
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 48px rgba(255,122,184,.34),0 0 22px rgba(85,230,255,.16)}
    .btn-secondary{
      border:1px solid var(--line);
      background:rgba(255,255,255,.055);
      color:#F4EFFB;
      backdrop-filter:blur(14px);
    }
    .btn-secondary:hover{transform:translateY(-3px);border-color:rgba(85,230,255,.42);background:rgba(85,230,255,.08)}
    .btn-text{
      padding:0;
      min-height:auto;
      color:#FFD7EA;
      border-radius:8px;
    }
    .btn-text:hover{color:#fff;transform:translateX(4px)}

    .hero-panel{
      position:relative;
      border:1px solid var(--line);
      border-radius:36px;
      background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
      backdrop-filter:blur(20px);
      box-shadow:var(--shadow);
      padding:24px;
      overflow:hidden;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      width:320px;height:320px;
      right:-120px;top:-110px;
      background:radial-gradient(circle,rgba(255,122,184,.30),transparent 62%);
      filter:blur(8px);
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      width:280px;height:280px;
      left:-110px;bottom:-120px;
      background:radial-gradient(circle,rgba(85,230,255,.19),transparent 65%);
      filter:blur(10px);
    }
    .panel-inner{position:relative;z-index:1}
    .abstract-cover{
      min-height:250px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.13);
      background:
        radial-gradient(circle at 20% 25%,rgba(255,122,184,.55),transparent 20%),
        radial-gradient(circle at 78% 36%,rgba(85,230,255,.40),transparent 21%),
        linear-gradient(135deg,rgba(255,122,184,.18),rgba(168,121,255,.18),rgba(7,11,22,.88));
      position:relative;
      overflow:hidden;
    }
    .abstract-cover::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(115deg,transparent 0 30%,rgba(255,255,255,.10) 31% 32%,transparent 33% 100%),
        repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 22px);
      opacity:.8;
    }
    .play-symbol{
      position:absolute;
      left:50%;top:50%;
      transform:translate(-50%,-50%);
      width:72px;height:72px;
      border-radius:50%;
      border:1px solid rgba(255,255,255,.30);
      background:rgba(7,11,22,.46);
      backdrop-filter:blur(14px);
      box-shadow:0 0 34px rgba(255,122,184,.22);
    }
    .play-symbol::after{
      content:"";
      position:absolute;
      left:29px;top:23px;
      width:0;height:0;
      border-top:13px solid transparent;
      border-bottom:13px solid transparent;
      border-left:19px solid #fff;
    }
    .floating-card{
      position:absolute;
      border:1px solid rgba(255,255,255,.14);
      border-radius:18px;
      background:rgba(8,10,18,.58);
      backdrop-filter:blur(18px);
      padding:12px 14px;
      box-shadow:0 14px 42px rgba(0,0,0,.28);
    }
    .float-a{left:18px;bottom:18px;width:190px}
    .float-b{right:18px;top:18px;width:156px}
    .mini-title{font-size:13px;font-weight:800;color:#fff}
    .mini-text{font-size:12px;color:var(--muted);line-height:1.55;margin-top:3px}
    .bars{display:flex;align-items:end;gap:5px;height:34px;margin-top:8px}
    .bars i{display:block;flex:1;border-radius:999px;background:linear-gradient(to top,var(--pink),var(--cyan));opacity:.78}
    .bars i:nth-child(1){height:38%}.bars i:nth-child(2){height:68%}.bars i:nth-child(3){height:48%}.bars i:nth-child(4){height:88%}.bars i:nth-child(5){height:58%}
    .panel-bottom{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-top:16px;
    }
    .stat-card,.glass-card{
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow-soft);
    }
    .stat-card{padding:17px}
    .stat-num{font-size:28px;font-weight:850;letter-spacing:-.04em}
    .stat-label{font-size:13px;color:var(--muted);margin-top:2px}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:5px 10px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.11);
      background:rgba(255,255,255,.055);
      color:#E9E4F0;
      font-size:13px;
      font-weight:650;
    }
    .tag.pink{border-color:rgba(255,122,184,.26);background:rgba(255,122,184,.10);color:#FFD7EA}
    .tag.cyan{border-color:rgba(85,230,255,.25);background:rgba(85,230,255,.08);color:#D8FAFF}
    .tag.warn{border-color:rgba(255,209,102,.25);background:rgba(255,209,102,.08);color:#FFE4A7}

    .intro-strip{
      margin-top:4px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,rgba(255,255,255,.065),rgba(255,255,255,.025));
      padding:28px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:22px;
      align-items:center;
      box-shadow:var(--shadow-soft);
    }
    .intro-strip p{max-width:780px}
    .trust-list{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .trust-item{
      padding:10px 13px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      color:#EAE5F2;
      font-size:13px;
      font-weight:750;
      white-space:nowrap;
    }

    .feature-grid{
      display:grid;
      grid-template-columns:repeat(6,1fr);
      gap:20px;
    }
    .feature-card{
      position:relative;
      min-height:220px;
      padding:24px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
    }
    .feature-card:hover,.column-card:hover,.water-card:hover,.category-card:hover,.compare-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:0 24px 80px rgba(0,0,0,.36),0 0 40px rgba(255,122,184,.08);
    }
    .feature-card::after{
      content:"";
      position:absolute;
      width:150px;height:150px;
      right:-70px;bottom:-70px;
      background:radial-gradient(circle,rgba(255,122,184,.22),transparent 62%);
      filter:blur(4px);
    }
    .feature-card.large{grid-column:span 3;min-height:260px}
    .feature-card.medium{grid-column:span 2}
    .feature-card.wide{grid-column:span 4}
    .feature-card.small{grid-column:span 2}
    .icon{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      background:var(--gradient-soft);
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
      font-weight:900;
      margin-bottom:20px;
    }
    .feature-card h3{margin-bottom:12px}
    .feature-card p{font-size:15px}

    .category-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr 1fr;
      gap:20px;
      align-items:stretch;
    }
    .category-card{
      min-height:260px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(255,255,255,.065),rgba(255,255,255,.03));
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow-soft);
      padding:24px;
      transition:.24s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .category-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 80% 10%,rgba(85,230,255,.14),transparent 28%),
                 radial-gradient(circle at 15% 88%,rgba(255,122,184,.16),transparent 30%);
      opacity:.9;
      pointer-events:none;
    }
    .category-card>*{position:relative;z-index:1}
    .category-card:nth-child(1){grid-row:span 2;min-height:540px}
    .category-card:nth-child(2){min-height:250px}
    .category-card:nth-child(3){min-height:250px}
    .category-art{
      height:190px;
      border-radius:24px;
      margin-bottom:20px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 28% 24%,rgba(255,122,184,.45),transparent 22%),
        radial-gradient(circle at 72% 62%,rgba(85,230,255,.35),transparent 24%),
        linear-gradient(135deg,rgba(168,121,255,.18),rgba(7,11,22,.72));
      overflow:hidden;
      position:relative;
    }
    .category-art::after{
      content:"";
      position:absolute;
      inset:18px;
      border-radius:20px;
      border:1px dashed rgba(255,255,255,.18);
      background:linear-gradient(90deg,rgba(255,255,255,.04),transparent);
    }
    .category-card h3{margin-bottom:10px}
    .category-card p{font-size:15px}
    .category-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-top:22px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .heat{font-size:13px;color:var(--weak)}
    .heat strong{color:var(--cyan)}

    .waterfall{
      columns:3 280px;
      column-gap:20px;
    }
    .water-card{
      break-inside:avoid;
      display:inline-block;
      width:100%;
      margin:0 0 20px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:.24s var(--ease);
    }
    .water-cover{
      height:150px;
      background:
        radial-gradient(circle at 22% 38%,rgba(255,122,184,.38),transparent 24%),
        radial-gradient(circle at 80% 20%,rgba(85,230,255,.28),transparent 24%),
        linear-gradient(135deg,rgba(255,255,255,.08),rgba(168,121,255,.12),rgba(8,10,18,.95));
      position:relative;
    }
    .water-cover.tall{height:210px}
    .water-cover::after{
      content:"";
      position:absolute;
      inset:0;
      background:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 18px);
      opacity:.55;
    }
    .water-body{padding:20px}
    .water-body h3{font-size:22px;margin-bottom:8px}
    .water-body p{font-size:15px}
    .status{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(117,240,178,.08);
      border:1px solid rgba(117,240,178,.22);
      color:#C9FFE3;
      font-size:12px;
      font-weight:800;
      margin-bottom:14px;
    }
    .status::before{
      content:"";
      width:6px;height:6px;border-radius:50%;
      background:var(--ok);
      box-shadow:0 0 15px rgba(117,240,178,.65);
    }

    .compare-wrap{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:20px;
    }
    .compare-card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
      padding:26px;
      transition:.24s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .compare-card.featured{
      background:linear-gradient(145deg,rgba(255,122,184,.12),rgba(85,230,255,.055));
      border-color:rgba(255,122,184,.26);
    }
    .compare-card h3{margin-bottom:16px}
    .compare-list{list-style:none;display:grid;gap:12px;margin-top:18px}
    .compare-list li{
      display:flex;
      gap:10px;
      color:#DCD7E8;
      font-size:15px;
    }
    .compare-list li::before{
      content:"✓";
      flex:0 0 22px;
      width:22px;height:22px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(85,230,255,.10);
      color:var(--cyan);
      font-weight:900;
      line-height:1;
      margin-top:2px;
    }

    .process{
      display:grid;
      grid-template-columns:1fr 1fr 1fr 1fr;
      gap:18px;
      counter-reset:step;
    }
    .process-item{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.05);
      padding:22px;
      min-height:190px;
    }
    .process-item::before{
      counter-increment:step;
      content:"0" counter(step);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;height:42px;
      margin-bottom:18px;
      border-radius:15px;
      background:var(--gradient);
      color:#fff;
      font-weight:900;
      box-shadow:0 10px 26px rgba(255,122,184,.20);
    }
    .process-item h3{font-size:20px;margin-bottom:8px}
    .process-item p{font-size:14px}

    .faq-grid{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:start;
    }
    .faq-list{display:grid;gap:14px}
    .faq-item{
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
      overflow:hidden;
      transition:border-color .22s var(--ease),background .22s var(--ease);
    }
    .faq-item:hover{border-color:rgba(255,122,184,.32)}
    .faq-question{
      width:100%;
      min-height:62px;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      text-align:left;
      font-weight:800;
      color:#fff;
    }
    .faq-question span:last-child{
      flex:0 0 28px;
      width:28px;height:28px;
      border-radius:50%;
      display:grid;place-items:center;
      border:1px solid rgba(255,255,255,.13);
      color:var(--cyan);
      transition:transform .2s var(--ease);
    }
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.open{
      background:rgba(255,122,184,.07);
      border-color:rgba(255,122,184,.28);
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}

    .contact-panel{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
      box-shadow:var(--shadow);
      overflow:hidden;
      display:grid;
      grid-template-columns:.9fr 1.1fr;
    }
    .contact-copy{
      padding:34px;
      background:
        radial-gradient(circle at 20% 20%,rgba(255,122,184,.18),transparent 34%),
        radial-gradient(circle at 82% 72%,rgba(85,230,255,.12),transparent 34%);
    }
    .feedback-form{
      padding:28px;
      display:grid;
      gap:14px;
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px}
    label{font-size:13px;font-weight:750;color:#E9E4F0}
    input,textarea,select{
      width:100%;
      border:1px solid var(--line);
      border-radius:16px;
      background:rgba(7,11,22,.52);
      padding:13px 14px;
      color:#fff;
      outline:none;
      transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
    }
    textarea{min-height:120px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#73788D}
    input:focus,textarea:focus,select:focus{
      border-color:rgba(85,230,255,.45);
      box-shadow:0 0 0 4px rgba(85,230,255,.09),0 0 28px rgba(255,122,184,.08);
      background:rgba(7,11,22,.70);
    }
    .form-note{
      font-size:13px;
      color:var(--weak);
      line-height:1.65;
    }

    .cta-band{
      position:relative;
      border:1px solid rgba(255,255,255,.12);
      border-radius:36px;
      padding:42px;
      background:
        radial-gradient(circle at 12% 22%,rgba(255,122,184,.20),transparent 34%),
        radial-gradient(circle at 84% 70%,rgba(85,230,255,.14),transparent 30%),
        linear-gradient(135deg,rgba(255,255,255,.075),rgba(255,255,255,.032));
      box-shadow:var(--shadow);
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .cta-band h2{max-width:760px}
    .cta-band p{margin-top:14px;max-width:720px}

    .site-footer{
      border-top:1px solid rgba(255,255,255,.09);
      background:rgba(4,6,12,.55);
      padding:64px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr .95fr 1fr;
      gap:34px;
      margin-bottom:38px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:850;
      font-size:18px;
      margin-bottom:14px;
    }
    .footer-col h3{
      font-size:16px;
      letter-spacing:0;
      margin-bottom:14px;
    }
    .footer-col p,.footer-col li,.footer-bottom{
      color:var(--weak);
      font-size:14px;
      line-height:1.75;
    }
    .footer-col ul{list-style:none;display:grid;gap:9px}
    .footer-col a{color:var(--muted);transition:color .2s var(--ease)}
    .footer-col a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:4px}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.08);
      padding-top:22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
    }

    @media (max-width: 1100px){
      .hero-grid{grid-template-columns:1fr;gap:34px}
      .hero{padding-top:70px}
      .feature-card.large,.feature-card.wide{grid-column:span 3}
      .feature-card.medium,.feature-card.small{grid-column:span 3}
      .category-grid{grid-template-columns:1fr 1fr}
      .category-card:nth-child(1){grid-row:auto;grid-column:span 2;min-height:auto}
      .compare-wrap{grid-template-columns:1fr}
      .process{grid-template-columns:1fr 1fr}
      .contact-panel{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 860px){
      .container{width:min(100% - 40px,var(--container))}
      .section{padding:72px 0}
      .nav-cta{display:none}
      .menu-btn{display:block}
      .nav-links{
        position:absolute;
        top:calc(var(--nav-h) + 10px);
        left:20px;
        right:20px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:4px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:24px;
        background:rgba(10,14,26,.92);
        backdrop-filter:blur(20px);
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{
        min-height:46px;
        padding:0 14px;
        border-radius:14px;
      }
      .nav-links a.active,.nav-links a:hover{background:rgba(255,255,255,.055)}
      .nav-links a::after{display:none}
      .section-head{grid-template-columns:1fr;align-items:start}
      .intro-strip{grid-template-columns:1fr}
      .trust-list{justify-content:flex-start}
      .feature-grid{grid-template-columns:1fr}
      .feature-card.large,.feature-card.wide,.feature-card.medium,.feature-card.small{grid-column:auto}
      .category-grid{grid-template-columns:1fr}
      .category-card:nth-child(1){grid-column:auto}
      .faq-grid{grid-template-columns:1fr}
      .cta-band{grid-template-columns:1fr;padding:32px}
      .form-row{grid-template-columns:1fr}
    }
    @media (max-width: 560px){
      :root{--nav-h:66px}
      .container{width:min(100% - 32px,var(--container))}
      .logo{font-size:16px}
      .logo-mark{width:31px;height:31px;border-radius:11px}
      .hero{min-height:auto;padding:50px 0 44px}
      h1{font-size:38px}
      .lead{font-size:16px}
      .hero-actions .btn{width:100%}
      .hero-panel{border-radius:26px;padding:16px}
      .abstract-cover{min-height:220px;border-radius:22px}
      .float-a{width:165px}
      .float-b{width:138px}
      .panel-bottom{grid-template-columns:1fr}
      .process{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{align-items:flex-start;flex-direction:column}
      .waterfall{columns:1}
    }

/* roulang page: category2 */
:root{
      --bg:#070B16;
      --bg-2:#080A12;
      --panel:#101827;
      --panel-2:#121525;
      --panel-3:#171B2E;
      --text:#F7F4FA;
      --muted:#B8B5C7;
      --weak:#7E8298;
      --pink:#FF7AB8;
      --cyan:#55E6FF;
      --violet:#A879FF;
      --warn:#FFD166;
      --border:rgba(255,255,255,.10);
      --border-strong:rgba(255,122,184,.35);
      --glass:rgba(255,255,255,.055);
      --glass-hi:rgba(255,122,184,.10);
      --shadow:0 24px 80px rgba(0,0,0,.32);
      --shadow-soft:0 18px 54px rgba(0,0,0,.22);
      --radius:28px;
      --radius-sm:18px;
      --radius-pill:999px;
      --container:1180px;
      --grad:linear-gradient(135deg,#FF7AB8 0%,#A879FF 48%,#55E6FF 100%);
      --grad-soft:linear-gradient(135deg,rgba(255,122,184,.20),rgba(168,121,255,.13),rgba(85,230,255,.12));
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 8% 8%,rgba(255,122,184,.20),transparent 34%),
        radial-gradient(circle at 92% 18%,rgba(85,230,255,.13),transparent 30%),
        radial-gradient(circle at 50% 90%,rgba(168,121,255,.14),transparent 38%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 62%,#05070d);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
      background-size:56px 56px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.75),transparent 78%);
      z-index:-2;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none;color:inherit}
    input,select,textarea{width:100%}
    ::selection{background:rgba(255,122,184,.32);color:#fff}

    .container{
      width:min(var(--container),calc(100% - 48px));
      margin-inline:auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(7,11,22,.70);
      border-bottom:1px solid rgba(255,255,255,.075);
    }
    .nav{
      height:72px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:26px;
    }
    .logo,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      color:#fff;
      white-space:nowrap;
    }
    .logo{font-size:18px}
    .logo-mark{
      width:30px;
      height:30px;
      border-radius:11px;
      display:inline-block;
      position:relative;
      background:var(--grad);
      box-shadow:0 0 26px rgba(255,122,184,.32);
      flex:0 0 auto;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:7px;
      border-radius:8px;
      background:rgba(7,11,22,.42);
      border:1px solid rgba(255,255,255,.28);
    }
    .nav nav{display:flex;align-items:center}
    .nav-links{
      list-style:none;
      display:flex;
      align-items:center;
      gap:30px;
    }
    .nav-links a{
      position:relative;
      color:var(--muted);
      font-size:14px;
      font-weight:650;
      padding:8px 0;
      transition:color .22s ease;
      outline:none;
    }
    .nav-links a::after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:0;
      height:2px;
      border-radius:10px;
      transform:scaleX(0);
      transform-origin:center;
      background:var(--grad);
      transition:transform .22s ease;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible,
    .nav-links a.active{color:#fff}
    .nav-links a:hover::after,
    .nav-links a:focus-visible::after,
    .nav-links a.active::after{transform:scaleX(1)}
    .nav-cta{
      padding:8px 13px;
      border:1px solid rgba(255,209,102,.32);
      background:rgba(255,209,102,.08);
      color:#FFE2A0;
      border-radius:var(--radius-pill);
      font-size:13px;
      white-space:nowrap;
    }
    .menu-btn{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.05);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
    }
    .menu-btn span{
      width:18px;
      height:2px;
      border-radius:8px;
      background:#fff;
      transition:.2s ease;
    }
    .menu-btn:focus-visible,
    a:focus-visible,
    .btn:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible,
    summary:focus-visible{
      outline:3px solid rgba(85,230,255,.34);
      outline-offset:3px;
    }

    main{position:relative;z-index:1}
    .section{padding:96px 0}
    .section-sm{padding:72px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--cyan);
      font-size:14px;
      font-weight:800;
      letter-spacing:.08em;
      margin-bottom:12px;
    }
    .section-kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--pink);
      box-shadow:0 0 16px rgba(255,122,184,.68);
    }
    h1,h2,h3{line-height:1.16;letter-spacing:-.03em}
    h1{
      font-size:clamp(38px,5vw,62px);
      max-width:760px;
      font-weight:850;
      margin:16px 0 22px;
    }
    h2{font-size:clamp(28px,3.2vw,40px);font-weight:820}
    h3{font-size:22px;font-weight:780}
    p{color:var(--muted)}
    .lead{
      font-size:18px;
      max-width:690px;
      color:#D7D2E3;
    }
    .gradient-text{
      background:var(--grad);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .hero{
      min-height:720px;
      display:grid;
      align-items:center;
      padding:72px 0 42px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:34px;
      align-items:center;
    }
    .hero-copy{
      position:relative;
      padding:26px 0;
    }
    .badge-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:14px;
    }
    .badge,.tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      color:#EFEAF7;
      border-radius:var(--radius-pill);
      padding:7px 12px;
      font-size:13px;
      font-weight:700;
      backdrop-filter:blur(12px);
    }
    .badge.warn{
      border-color:rgba(255,209,102,.36);
      color:#FFE0A0;
      background:rgba(255,209,102,.08);
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:34px;
      align-items:center;
    }
    .btn{
      min-height:48px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      border-radius:var(--radius-pill);
      padding:13px 20px;
      font-weight:800;
      line-height:1;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
      user-select:none;
    }
    .btn-primary{
      background:var(--grad);
      color:#fff;
      box-shadow:0 14px 36px rgba(255,122,184,.25),0 0 0 1px rgba(255,255,255,.08) inset;
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 46px rgba(255,122,184,.34),0 0 28px rgba(85,230,255,.16)}
    .btn-secondary{
      color:#F4EFFA;
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
    }
    .btn-secondary:hover{transform:translateY(-3px);border-color:rgba(85,230,255,.36);background:rgba(85,230,255,.08)}
    .fine-note{
      color:var(--weak);
      font-size:13px;
      margin-top:18px;
    }

    .guide-panel{
      position:relative;
      border:1px solid var(--border);
      background:
        linear-gradient(180deg,rgba(255,255,255,.085),rgba(255,255,255,.035)),
        rgba(255,255,255,.045);
      border-radius:34px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(20px);
      padding:22px;
      overflow:hidden;
    }
    .guide-panel::before{
      content:"";
      position:absolute;
      inset:-90px -120px auto auto;
      width:280px;
      height:280px;
      background:radial-gradient(circle,rgba(255,122,184,.36),transparent 66%);
      filter:blur(10px);
      pointer-events:none;
    }
    .mock-browser{
      position:relative;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(7,11,22,.72);
      overflow:hidden;
    }
    .mock-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:15px 16px;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .dots{display:flex;gap:7px}
    .dots span{
      width:9px;height:9px;border-radius:50%;
      background:rgba(255,255,255,.22);
    }
    .dots span:nth-child(1){background:var(--pink)}
    .dots span:nth-child(2){background:var(--warn)}
    .dots span:nth-child(3){background:var(--cyan)}
    .secure-pill{
      border:1px solid rgba(85,230,255,.24);
      background:rgba(85,230,255,.08);
      color:#BFF7FF;
      border-radius:var(--radius-pill);
      padding:5px 10px;
      font-size:12px;
      font-weight:750;
    }
    .mock-content{
      padding:20px;
      display:grid;
      gap:16px;
    }
    .search-card{
      min-height:132px;
      border-radius:24px;
      padding:20px;
      background:
        radial-gradient(circle at 18% 10%,rgba(255,122,184,.22),transparent 34%),
        radial-gradient(circle at 82% 82%,rgba(85,230,255,.15),transparent 38%),
        rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
    }
    .search-line{
      height:13px;
      border-radius:999px;
      background:rgba(255,255,255,.16);
      margin-bottom:12px;
    }
    .search-line.w1{width:66%}
    .search-line.w2{width:88%}
    .search-line.w3{width:48%}
    .mini-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .mini-card{
      padding:16px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.055);
    }
    .mini-card strong{
      display:block;
      font-size:24px;
      line-height:1;
      margin-bottom:8px;
      color:#fff;
    }
    .mini-card span{
      font-size:13px;
      color:var(--muted);
    }

    .timeline-wrap{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:32px;
      align-items:start;
    }
    .sticky-note{
      position:sticky;
      top:98px;
      border-radius:var(--radius);
      padding:28px;
      border:1px solid var(--border);
      background:var(--grad-soft);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(18px);
    }
    .sticky-note ul{
      list-style:none;
      margin-top:22px;
      display:grid;
      gap:12px;
    }
    .sticky-note li{
      display:flex;
      gap:10px;
      color:#DAD4E7;
      font-size:15px;
    }
    .sticky-note li::before{
      content:"";
      width:9px;
      height:9px;
      margin-top:9px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px rgba(85,230,255,.55);
      flex:0 0 auto;
    }
    .timeline{
      position:relative;
      display:grid;
      gap:18px;
    }
    .timeline::before{
      content:"";
      position:absolute;
      left:27px;
      top:26px;
      bottom:26px;
      width:1px;
      background:linear-gradient(to bottom,rgba(255,122,184,.15),rgba(85,230,255,.55),rgba(168,121,255,.12));
    }
    .step{
      position:relative;
      display:grid;
      grid-template-columns:56px 1fr;
      gap:18px;
      align-items:start;
    }
    .step-num{
      position:relative;
      z-index:2;
      width:56px;
      height:56px;
      border-radius:18px;
      display:grid;
      place-items:center;
      font-weight:850;
      color:#fff;
      background:linear-gradient(135deg,rgba(255,122,184,.95),rgba(168,121,255,.80));
      box-shadow:0 14px 34px rgba(255,122,184,.22);
    }
    .step-card,.glass-card{
      border:1px solid var(--border);
      background:var(--glass);
      backdrop-filter:blur(18px);
      border-radius:var(--radius);
      padding:26px;
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .step-card:hover,.glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--border-strong);
      box-shadow:0 26px 76px rgba(0,0,0,.36),0 0 30px rgba(255,122,184,.08);
    }
    .step-card p{margin-top:10px}
    .step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

    .tips-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
      align-items:stretch;
    }
    .tips-card{
      position:relative;
      overflow:hidden;
      min-height:390px;
    }
    .tips-card::after{
      content:"";
      position:absolute;
      width:190px;
      height:190px;
      right:-80px;
      top:-70px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(255,122,184,.18),transparent 68%);
      pointer-events:none;
    }
    .tips-card.safe::after{background:radial-gradient(circle,rgba(85,230,255,.18),transparent 68%)}
    .check-list{
      list-style:none;
      display:grid;
      gap:14px;
      margin-top:22px;
    }
    .check-list li{
      display:grid;
      grid-template-columns:28px 1fr;
      gap:12px;
      color:#DED9E9;
      align-items:start;
    }
    .check-list li span{
      width:28px;
      height:28px;
      border-radius:10px;
      display:grid;
      place-items:center;
      font-size:14px;
      font-weight:900;
      background:rgba(85,230,255,.10);
      color:#A9F5FF;
      border:1px solid rgba(85,230,255,.22);
    }
    .check-list.avoid li span{
      background:rgba(255,122,184,.10);
      color:#FFC2DE;
      border-color:rgba(255,122,184,.24);
    }

    .mode-board{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
      align-items:stretch;
    }
    .mode-main{
      min-height:430px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 15% 18%,rgba(255,122,184,.18),transparent 36%),
        radial-gradient(circle at 88% 78%,rgba(85,230,255,.12),transparent 34%),
        rgba(255,255,255,.055);
    }
    .mode-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:20px 0;
    }
    .device-frame{
      border:1px solid rgba(255,255,255,.11);
      background:rgba(0,0,0,.18);
      border-radius:28px;
      padding:14px;
      margin-top:18px;
    }
    .device-screen{
      border-radius:20px;
      min-height:160px;
      padding:18px;
      background:
        linear-gradient(135deg,rgba(255,122,184,.13),transparent 45%),
        linear-gradient(315deg,rgba(85,230,255,.14),transparent 50%),
        rgba(255,255,255,.05);
    }
    .device-row{
      height:12px;
      border-radius:999px;
      background:rgba(255,255,255,.18);
      margin-bottom:12px;
    }
    .device-row:nth-child(1){width:54%}
    .device-row:nth-child(2){width:82%}
    .device-row:nth-child(3){width:68%}
    .device-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
    .device-pills span{
      width:72px;
      height:28px;
      border-radius:999px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.08);
    }
    .mode-side{
      display:grid;
      gap:24px;
    }
    .stat-card{
      border-radius:var(--radius);
      padding:24px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow-soft);
    }
    .stat-card strong{
      display:block;
      font-size:34px;
      line-height:1;
      margin-bottom:10px;
      background:var(--grad);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .stat-card p{font-size:14px}

    .filter-map{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:20px;
    }
    .map-card{
      min-height:190px;
      grid-column:span 4;
      border-radius:var(--radius);
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      padding:24px;
      backdrop-filter:blur(18px);
      transition:.22s ease;
      position:relative;
      overflow:hidden;
    }
    .map-card.large{grid-column:span 7;min-height:240px}
    .map-card.tall{grid-column:span 5;min-height:240px}
    .map-card:hover{
      transform:translateY(-4px);
      border-color:rgba(85,230,255,.32);
      background:rgba(255,255,255,.07);
    }
    .map-card::before{
      content:"";
      position:absolute;
      inset:auto -60px -80px auto;
      width:180px;
      height:180px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(168,121,255,.16),transparent 68%);
    }
    .map-card h3{margin:14px 0 10px}
    .icon-bubble{
      width:42px;
      height:42px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,rgba(255,122,184,.85),rgba(85,230,255,.56));
      box-shadow:0 12px 26px rgba(255,122,184,.16);
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:30px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    details.faq-item{
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      border-radius:22px;
      padding:0;
      overflow:hidden;
      backdrop-filter:blur(18px);
      transition:border-color .22s ease,background .22s ease;
    }
    details.faq-item:hover{border-color:rgba(255,122,184,.28);background:rgba(255,255,255,.07)}
    details.faq-item[open]{border-color:rgba(85,230,255,.28)}
    .faq-item summary{
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:19px 22px;
      font-weight:780;
      color:#fff;
      cursor:pointer;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      border-radius:50%;
      border:1px solid var(--border);
      color:var(--cyan);
      flex:0 0 auto;
      transition:.2s ease;
    }
    .faq-item[open] summary::after{
      content:"–";
      color:var(--pink);
      transform:rotate(180deg);
    }
    .faq-item p{
      padding:0 22px 22px;
      font-size:15px;
    }

    .contact-cta{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:26px;
      align-items:stretch;
      border-radius:34px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 8% 10%,rgba(255,122,184,.22),transparent 32%),
        radial-gradient(circle at 90% 90%,rgba(85,230,255,.15),transparent 34%),
        rgba(255,255,255,.055);
      padding:30px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(20px);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .field.full{grid-column:1/-1}
    label{
      display:block;
      font-size:13px;
      color:#DED9E9;
      font-weight:750;
      margin-bottom:8px;
    }
    input,select,textarea{
      min-height:48px;
      border-radius:16px;
      border:1px solid var(--border);
      color:#fff;
      background:rgba(6,9,18,.58);
      padding:12px 14px;
      outline:none;
      transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
    }
    textarea{min-height:118px;resize:vertical}
    input::placeholder,textarea::placeholder{color:rgba(184,181,199,.58)}
    input:focus,select:focus,textarea:focus{
      border-color:rgba(85,230,255,.42);
      box-shadow:0 0 0 4px rgba(85,230,255,.10),0 0 26px rgba(255,122,184,.08);
      background:rgba(6,9,18,.76);
    }
    .form-note{
      color:var(--weak);
      font-size:13px;
      margin:12px 0 18px;
    }

    .site-footer{
      border-top:1px solid rgba(255,255,255,.09);
      background:rgba(4,6,12,.78);
      padding:60px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr 1fr 1fr;
      gap:30px;
      align-items:start;
    }
    .footer-brand{font-size:17px;margin-bottom:16px}
    .footer-col h3{
      font-size:16px;
      margin-bottom:16px;
      letter-spacing:0;
    }
    .footer-col p,.footer-col li{
      color:var(--muted);
      font-size:14px;
    }
    .footer-col ul{list-style:none;display:grid;gap:9px}
    .footer-col a{
      color:var(--muted);
      transition:color .2s ease,padding-left .2s ease;
    }
    .footer-col a:hover{color:#fff;padding-left:4px}
    .footer-bottom{
      margin-top:38px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:20px;
      color:var(--weak);
      font-size:13px;
      flex-wrap:wrap;
    }

    @media (max-width:1024px){
      .container{width:min(100% - 40px,var(--container))}
      .nav-links{gap:20px}
      .nav-cta{display:none}
      .hero-grid,.timeline-wrap,.mode-board,.faq-wrap,.contact-cta{grid-template-columns:1fr}
      .hero{min-height:auto;padding:76px 0 44px}
      .sticky-note{position:relative;top:auto}
      .filter-map{grid-template-columns:repeat(6,1fr)}
      .map-card,.map-card.large,.map-card.tall{grid-column:span 3}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:768px){
      .container{width:calc(100% - 40px)}
      .nav{height:68px}
      .menu-btn{display:flex}
      .nav-links{
        position:absolute;
        left:20px;
        right:20px;
        top:78px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:0;
        padding:12px;
        border-radius:24px;
        border:1px solid var(--border);
        background:rgba(10,14,27,.94);
        box-shadow:var(--shadow);
        backdrop-filter:blur(22px);
      }
      .nav-links.open{display:flex}
      .nav-links li{width:100%}
      .nav-links a{
        display:flex;
        min-height:46px;
        align-items:center;
        padding:10px 12px;
        border-radius:14px;
      }
      .nav-links a::after{display:none}
      .nav-links a.active{background:rgba(255,122,184,.10)}
      .section{padding:72px 0}
      .section-sm{padding:56px 0}
      .section-head{display:block}
      .section-head .lead{margin-top:12px}
      .tips-grid,.mini-grid,.form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .filter-map{grid-template-columns:1fr}
      .map-card,.map-card.large,.map-card.tall{grid-column:auto}
      .contact-cta{padding:22px;border-radius:26px}
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width:520px){
      .container{width:calc(100% - 32px)}
      h1{font-size:35px}
      .hero-actions{display:grid;grid-template-columns:1fr}
      .btn{width:100%}
      .badge-row{gap:8px}
      .guide-panel{padding:14px;border-radius:26px}
      .mock-content{padding:14px}
      .step{grid-template-columns:44px 1fr;gap:14px}
      .step-num{width:44px;height:44px;border-radius:15px}
      .timeline::before{left:21px}
      .step-card,.glass-card,.sticky-note,.stat-card,.map-card{padding:20px;border-radius:22px}
      .footer-bottom{display:grid}
    }

/* roulang page: category1 */
:root {
      --bg: #070B16;
      --bg-2: #080A12;
      --panel: #101827;
      --panel-2: #121525;
      --panel-3: #171B2E;
      --pink: #FF7AB8;
      --cyan: #55E6FF;
      --purple: #A879FF;
      --text: #F7F4FA;
      --muted: #B8B5C7;
      --weak: #7E8298;
      --warning: #FFD166;
      --border: rgba(255,255,255,0.10);
      --border-strong: rgba(255,122,184,0.35);
      --glass: rgba(255,255,255,0.055);
      --glass-strong: rgba(255,122,184,0.10);
      --shadow: 0 24px 80px rgba(0,0,0,0.32);
      --shadow-soft: 0 16px 42px rgba(0,0,0,0.24);
      --radius-lg: 30px;
      --radius-md: 22px;
      --radius-sm: 16px;
      --container: 1180px;
      --gradient: linear-gradient(135deg, #FF7AB8 0%, #A879FF 48%, #55E6FF 100%);
      --gradient-soft: linear-gradient(135deg, rgba(255,122,184,0.18), rgba(168,121,255,0.12), rgba(85,230,255,0.12));
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      line-height: 1.75;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(255,122,184,0.20), transparent 34%),
        radial-gradient(circle at 88% 20%, rgba(85,230,255,0.12), transparent 28%),
        radial-gradient(circle at 72% 82%, rgba(168,121,255,0.14), transparent 32%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 48%, #060812 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -1;
      background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
      background-size: 56px 56px;
      mask-image: radial-gradient(circle at center, rgba(0,0,0,0.85), transparent 72%);
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

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

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

    :focus-visible {
      outline: 3px solid rgba(85,230,255,0.55);
      outline-offset: 4px;
      border-radius: 12px;
    }

    .container {
      width: min(100% - 48px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      height: 74px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      background: rgba(7,11,22,0.72);
      backdrop-filter: blur(22px);
      transition: background 0.25s ease, box-shadow 0.25s ease;
    }

    .site-header.is-scrolled {
      background: rgba(7,11,22,0.90);
      box-shadow: 0 16px 42px rgba(0,0,0,0.25);
    }

    .nav {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .logo,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text);
      white-space: nowrap;
    }

    .logo {
      font-size: 18px;
    }

    .logo-mark {
      width: 34px;
      height: 34px;
      border-radius: 13px;
      display: inline-block;
      background:
        radial-gradient(circle at 30% 28%, rgba(255,255,255,0.90), transparent 18%),
        var(--gradient);
      box-shadow: 0 0 24px rgba(255,122,184,0.38), inset 0 0 18px rgba(255,255,255,0.20);
      position: relative;
    }

    .logo-mark::after {
      content: "";
      position: absolute;
      inset: 8px;
      border: 1px solid rgba(255,255,255,0.42);
      border-radius: 9px;
    }

    .nav nav {
      margin-left: auto;
      display: flex;
      align-items: center;
    }

    .nav-links {
      list-style: none;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 600;
      transition: color 0.2s ease, background 0.2s ease;
      border-radius: 999px;
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 5px;
      height: 2px;
      border-radius: 99px;
      background: var(--gradient);
      transform: scaleX(0);
      transform-origin: center;
      transition: transform 0.22s ease;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: rgba(255,255,255,0.045);
    }

    .nav-links a:hover::after,
    .nav-links a.active::after {
      transform: scaleX(1);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 38px;
      padding: 0 14px;
      color: var(--warning);
      font-size: 13px;
      font-weight: 700;
      border: 1px solid rgba(255,209,102,0.25);
      border-radius: 999px;
      background: rgba(255,209,102,0.075);
      white-space: nowrap;
    }

    .nav-cta::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--warning);
      box-shadow: 0 0 14px rgba(255,209,102,0.65);
    }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--border);
      border-radius: 14px;
      background: rgba(255,255,255,0.055);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
    }

    .menu-btn span {
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: var(--text);
      transition: transform 0.2s ease, opacity 0.2s ease;
    }

    .section {
      padding: 96px 0;
      position: relative;
    }

    .section.compact {
      padding: 74px 0;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 34px;
    }

    .eyebrow,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.12);
      background: rgba(255,255,255,0.055);
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.02em;
      padding: 7px 12px;
      backdrop-filter: blur(12px);
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--pink);
      box-shadow: 0 0 16px rgba(255,122,184,0.72);
    }

    h1,
    h2,
    h3 {
      color: var(--text);
      line-height: 1.14;
      letter-spacing: -0.045em;
    }

    h1 {
      margin-top: 20px;
      font-size: clamp(38px, 5vw, 64px);
      font-weight: 800;
    }

    h2 {
      font-size: clamp(28px, 3.4vw, 42px);
      font-weight: 800;
      margin-top: 14px;
    }

    h3 {
      font-size: 22px;
      font-weight: 760;
    }

    p {
      color: var(--muted);
    }

    .lead {
      margin-top: 22px;
      font-size: 18px;
      max-width: 650px;
    }

    .gradient-text {
      background: var(--gradient);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .hero {
      min-height: 720px;
      display: flex;
      align-items: center;
      padding: 86px 0 88px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
      gap: 48px;
      align-items: center;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-top: 34px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 22px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 15px;
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.22s ease;
      white-space: nowrap;
    }

    .btn-primary {
      color: white;
      background: var(--gradient);
      box-shadow: 0 14px 38px rgba(255,122,184,0.24), 0 0 26px rgba(85,230,255,0.10);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 20px 54px rgba(255,122,184,0.32), 0 0 34px rgba(85,230,255,0.20);
    }

    .btn-secondary {
      color: var(--text);
      border: 1px solid rgba(255,255,255,0.14);
      background: rgba(255,255,255,0.055);
      backdrop-filter: blur(14px);
    }

    .btn-secondary:hover {
      transform: translateY(-3px);
      border-color: rgba(85,230,255,0.42);
      background: rgba(85,230,255,0.075);
    }

    .btn-small {
      min-height: 40px;
      padding: 0 16px;
      font-size: 13px;
    }

    .micro-note {
      display: flex;
      align-items: center;
      gap: 9px;
      margin-top: 18px;
      color: var(--weak);
      font-size: 14px;
    }

    .micro-note::before {
      content: "18+";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 24px;
      border-radius: 999px;
      color: var(--warning);
      border: 1px solid rgba(255,209,102,0.25);
      background: rgba(255,209,102,0.075);
      font-size: 12px;
      font-weight: 800;
    }

    .hero-panel {
      position: relative;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: linear-gradient(180deg, rgba(255,255,255,0.075), rgba(255,255,255,0.038));
      box-shadow: var(--shadow);
      backdrop-filter: blur(20px);
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      top: -80px;
      right: -64px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,122,184,0.28), transparent 68%);
      pointer-events: none;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      bottom: -88px;
      left: -70px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(85,230,255,0.18), transparent 68%);
      pointer-events: none;
    }

    .panel-cover {
      position: relative;
      z-index: 1;
      height: 260px;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,0.12);
      background:
        radial-gradient(circle at 24% 32%, rgba(255,122,184,0.48), transparent 24%),
        radial-gradient(circle at 76% 28%, rgba(85,230,255,0.34), transparent 22%),
        linear-gradient(135deg, rgba(255,122,184,0.18), rgba(168,121,255,0.18), rgba(85,230,255,0.08)),
        #101827;
    }

    .panel-cover::before {
      content: "";
      position: absolute;
      inset: 20px;
      border-radius: 20px;
      border: 1px solid rgba(255,255,255,0.12);
      background:
        linear-gradient(90deg, rgba(255,255,255,0.16) 0 1px, transparent 1px 100%),
        linear-gradient(rgba(255,255,255,0.12) 0 1px, transparent 1px 100%);
      background-size: 28px 28px;
      opacity: 0.42;
    }

    .play-orb {
      position: absolute;
      inset: 0;
      margin: auto;
      width: 78px;
      height: 78px;
      border-radius: 50%;
      border: 1px solid rgba(255,255,255,0.20);
      background: rgba(7,11,22,0.46);
      backdrop-filter: blur(14px);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 20px 45px rgba(0,0,0,0.32), 0 0 32px rgba(255,122,184,0.20);
    }

    .play-orb::after {
      content: "";
      width: 0;
      height: 0;
      margin-left: 5px;
      border-top: 12px solid transparent;
      border-bottom: 12px solid transparent;
      border-left: 18px solid var(--text);
    }

    .panel-body {
      position: relative;
      z-index: 1;
      padding-top: 22px;
    }

    .panel-top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 18px;
      margin-bottom: 20px;
    }

    .panel-top p {
      font-size: 14px;
      margin-top: 7px;
    }

    .score {
      min-width: 78px;
      text-align: right;
      font-weight: 800;
      color: var(--cyan);
      font-size: 28px;
      line-height: 1;
    }

    .score span {
      display: block;
      color: var(--weak);
      font-size: 12px;
      font-weight: 600;
      margin-top: 6px;
    }

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

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 12px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.11);
      color: var(--muted);
      background: rgba(255,255,255,0.045);
      font-size: 13px;
      font-weight: 650;
    }

    .tag.hot {
      color: var(--text);
      border-color: rgba(255,122,184,0.32);
      background: rgba(255,122,184,0.11);
    }

    .filter-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      padding: 18px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.045);
      border-radius: 24px;
      backdrop-filter: blur(16px);
      box-shadow: var(--shadow-soft);
    }

    .filter-pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 18px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.11);
      background: rgba(255,255,255,0.045);
      color: var(--muted);
      font-weight: 750;
      transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
    }

    .filter-pill:hover,
    .filter-pill.active {
      transform: translateY(-2px);
      color: var(--text);
      border-color: rgba(255,122,184,0.38);
      background: rgba(255,122,184,0.10);
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 1.12fr 0.88fr;
      gap: 24px;
      align-items: stretch;
    }

    .glass-card {
      position: relative;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--glass);
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
      transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
    }

    .glass-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: 0 28px 90px rgba(0,0,0,0.36), 0 0 42px rgba(255,122,184,0.08);
      background: rgba(255,255,255,0.072);
    }

    .intro-card {
      padding: 32px;
    }

    .intro-card h3 {
      margin-bottom: 14px;
    }

    .intro-card p + p {
      margin-top: 12px;
    }

    .mini-stats {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-top: 24px;
    }

    .stat-box {
      padding: 18px;
      border-radius: 18px;
      border: 1px solid rgba(255,255,255,0.10);
      background: rgba(255,255,255,0.045);
    }

    .stat-box strong {
      display: block;
      color: var(--text);
      font-size: 26px;
      line-height: 1.1;
    }

    .stat-box span {
      display: block;
      margin-top: 8px;
      color: var(--weak);
      font-size: 13px;
    }

    .note-card {
      padding: 30px;
      background:
        radial-gradient(circle at 90% 12%, rgba(85,230,255,0.12), transparent 35%),
        rgba(255,255,255,0.055);
    }

    .note-list {
      list-style: none;
      margin-top: 22px;
      display: grid;
      gap: 14px;
    }

    .note-list li {
      display: flex;
      gap: 12px;
      color: var(--muted);
      font-size: 15px;
    }

    .note-list li::before {
      content: "";
      flex: 0 0 9px;
      width: 9px;
      height: 9px;
      margin-top: 10px;
      border-radius: 50%;
      background: var(--gradient);
      box-shadow: 0 0 14px rgba(255,122,184,0.35);
    }

    .magazine-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-auto-rows: minmax(220px, auto);
      gap: 22px;
    }

    .pick-card {
      padding: 24px;
      min-height: 230px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .pick-card.large {
      grid-column: span 2;
      grid-row: span 2;
      min-height: 482px;
      padding: 30px;
      background:
        radial-gradient(circle at 20% 10%, rgba(255,122,184,0.16), transparent 35%),
        radial-gradient(circle at 86% 82%, rgba(85,230,255,0.10), transparent 32%),
        rgba(255,255,255,0.058);
    }

    .pick-card.wide {
      grid-column: span 2;
    }

    .abstract-thumb {
      height: 156px;
      border-radius: 20px;
      margin-bottom: 20px;
      border: 1px solid rgba(255,255,255,0.10);
      background:
        radial-gradient(circle at 35% 30%, rgba(255,122,184,0.34), transparent 28%),
        radial-gradient(circle at 72% 58%, rgba(85,230,255,0.24), transparent 24%),
        linear-gradient(135deg, rgba(255,255,255,0.10), rgba(255,255,255,0.035));
      position: relative;
      overflow: hidden;
    }

    .pick-card.large .abstract-thumb {
      height: 230px;
    }

    .abstract-thumb::before {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 18px;
      background:
        linear-gradient(120deg, transparent 0 44%, rgba(255,255,255,0.16) 45% 46%, transparent 47% 100%),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.07) 0 1px, transparent 1px 17px);
      opacity: 0.55;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
      margin-bottom: 14px;
    }

    .status {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 800;
    }

    .status::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: currentColor;
      box-shadow: 0 0 12px currentColor;
    }

    .pick-card h3 {
      margin-bottom: 10px;
    }

    .pick-card p {
      font-size: 15px;
    }

    .card-foot {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 14px;
      margin-top: 22px;
      padding-top: 16px;
      border-top: 1px solid rgba(255,255,255,0.08);
      color: var(--weak);
      font-size: 13px;
    }

    .text-link {
      color: var(--text);
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: color 0.2s ease, gap 0.2s ease;
    }

    .text-link::after {
      content: "→";
      color: var(--pink);
    }

    .text-link:hover {
      color: var(--cyan);
      gap: 10px;
    }

    .sort-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 24px;
      align-items: stretch;
    }

    .sort-panel {
      padding: 30px;
    }

    .sort-list {
      list-style: none;
      display: grid;
      gap: 16px;
      margin-top: 22px;
    }

    .sort-list li {
      display: grid;
      grid-template-columns: 46px 1fr;
      gap: 14px;
      align-items: flex-start;
      padding: 16px;
      border-radius: 18px;
      background: rgba(255,255,255,0.042);
      border: 1px solid rgba(255,255,255,0.085);
    }

    .sort-num {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: white;
      background: var(--gradient);
      box-shadow: 0 12px 26px rgba(255,122,184,0.18);
    }

    .sort-list strong {
      color: var(--text);
      display: block;
      margin-bottom: 3px;
    }

    .comfort-meter {
      padding: 30px;
      background:
        radial-gradient(circle at 24% 22%, rgba(255,122,184,0.13), transparent 34%),
        radial-gradient(circle at 90% 72%, rgba(85,230,255,0.10), transparent 34%),
        rgba(255,255,255,0.055);
    }

    .meter-row {
      display: grid;
      gap: 18px;
      margin-top: 26px;
    }

    .meter-item {
      display: grid;
      gap: 9px;
    }

    .meter-top {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .meter {
      height: 10px;
      border-radius: 999px;
      background: rgba(255,255,255,0.075);
      overflow: hidden;
      border: 1px solid rgba(255,255,255,0.06);
    }

    .meter span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: var(--gradient);
      box-shadow: 0 0 18px rgba(255,122,184,0.25);
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 22px;
    }

    .scenario {
      grid-column: span 4;
      padding: 26px;
      min-height: 250px;
    }

    .scenario:nth-child(2) {
      grid-column: span 5;
      transform: translateY(26px);
    }

    .scenario:nth-child(3) {
      grid-column: span 3;
    }

    .scenario:nth-child(4) {
      grid-column: span 7;
    }

    .scenario:nth-child(5) {
      grid-column: span 5;
      transform: translateY(-14px);
    }

    .icon-glow {
      width: 48px;
      height: 48px;
      border-radius: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      background: var(--gradient-soft);
      border: 1px solid rgba(255,255,255,0.12);
      box-shadow: inset 0 0 18px rgba(255,255,255,0.08), 0 0 24px rgba(255,122,184,0.12);
      color: var(--text);
      font-weight: 900;
    }

    .scenario p {
      margin-top: 12px;
      font-size: 15px;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 0.75fr 1.25fr;
      gap: 28px;
      align-items: flex-start;
    }

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

    .faq-item {
      border: 1px solid var(--border);
      border-radius: 20px;
      background: rgba(255,255,255,0.052);
      overflow: hidden;
      transition: border-color 0.2s ease, background 0.2s ease;
    }

    .faq-item:hover {
      border-color: rgba(85,230,255,0.30);
      background: rgba(255,255,255,0.066);
    }

    .faq-question {
      width: 100%;
      min-height: 62px;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      text-align: left;
      color: var(--text);
      font-weight: 800;
    }

    .faq-question span {
      flex: 1;
    }

    .faq-question::after {
      content: "+";
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--cyan);
      background: rgba(85,230,255,0.08);
      transition: transform 0.2s ease;
    }

    .faq-item.open .faq-question::after {
      transform: rotate(45deg);
      color: var(--pink);
      background: rgba(255,122,184,0.10);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--muted);
      font-size: 15px;
    }

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

    .cta-panel {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 34px;
      padding: 44px;
      background:
        radial-gradient(circle at 15% 18%, rgba(255,122,184,0.22), transparent 34%),
        radial-gradient(circle at 88% 72%, rgba(85,230,255,0.15), transparent 30%),
        linear-gradient(135deg, rgba(255,255,255,0.075), rgba(255,255,255,0.038));
      box-shadow: var(--shadow);
      backdrop-filter: blur(22px);
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 32px;
      align-items: center;
    }

    .cta-panel h2 {
      margin-top: 0;
      max-width: 760px;
    }

    .cta-panel p {
      margin-top: 14px;
      max-width: 690px;
    }

    .cta-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .site-footer {
      border-top: 1px solid rgba(255,255,255,0.08);
      background: rgba(5,8,17,0.86);
      padding: 64px 0 28px;
      margin-top: 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.75fr 0.95fr 0.95fr;
      gap: 34px;
    }

    .footer-brand {
      font-size: 18px;
      margin-bottom: 18px;
    }

    .footer-col h3 {
      font-size: 16px;
      margin-bottom: 16px;
      letter-spacing: 0;
    }

    .footer-col p,
    .footer-col li {
      color: var(--muted);
      font-size: 14px;
    }

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

    .footer-col a {
      color: var(--muted);
      transition: color 0.2s ease;
    }

    .footer-col a:hover {
      color: var(--cyan);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      margin-top: 42px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,0.08);
      color: var(--weak);
      font-size: 13px;
    }

    @media (max-width: 1100px) {
      .nav-cta {
        display: none;
      }

      .hero-grid,
      .intro-grid,
      .sort-grid,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .hero {
        min-height: auto;
      }

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

      .scenario,
      .scenario:nth-child(2),
      .scenario:nth-child(3),
      .scenario:nth-child(4),
      .scenario:nth-child(5) {
        grid-column: span 6;
        transform: none;
      }

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

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

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

    @media (max-width: 820px) {
      .container {
        width: min(100% - 40px, var(--container));
      }

      .site-header {
        height: 68px;
      }

      .menu-btn {
        display: inline-flex;
      }

      .nav-links {
        position: absolute;
        top: calc(100% + 10px);
        right: 20px;
        width: min(320px, calc(100vw - 40px));
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 12px;
        border: 1px solid var(--border);
        border-radius: 22px;
        background: rgba(10,14,28,0.94);
        backdrop-filter: blur(22px);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        min-height: 46px;
        justify-content: flex-start;
        padding: 0 16px;
      }

      .nav-links a::after {
        left: 16px;
        right: auto;
        width: 36px;
      }

      .hero {
        padding: 62px 0 68px;
      }

      .hero-grid {
        gap: 34px;
      }

      .section {
        padding: 70px 0;
      }

      .section.compact {
        padding: 58px 0;
      }

      .panel-cover {
        height: 220px;
      }

      .magazine-grid {
        grid-template-columns: 1fr;
      }

      .pick-card.large,
      .pick-card.wide {
        grid-column: auto;
        grid-row: auto;
        min-height: auto;
      }

      .scenario-grid {
        grid-template-columns: 1fr;
      }

      .scenario,
      .scenario:nth-child(2),
      .scenario:nth-child(3),
      .scenario:nth-child(4),
      .scenario:nth-child(5) {
        grid-column: auto;
      }

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

    @media (max-width: 540px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .logo {
        font-size: 16px;
      }

      .logo-mark {
        width: 30px;
        height: 30px;
        border-radius: 11px;
      }

      h1 {
        font-size: 36px;
      }

      .lead {
        font-size: 16px;
      }

      .hero-actions,
      .cta-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .hero-panel,
      .intro-card,
      .note-card,
      .sort-panel,
      .comfort-meter,
      .cta-panel {
        padding: 22px;
        border-radius: 24px;
      }

      .mini-stats {
        grid-template-columns: 1fr;
      }

      .pick-card {
        padding: 22px;
      }

      .pick-card.large {
        padding: 22px;
      }

      .card-foot {
        align-items: flex-start;
        flex-direction: column;
      }

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

/* roulang page: category3 */
:root{
      --bg:#070B16;
      --bg-2:#080A12;
      --panel:#101827;
      --panel-2:#121525;
      --panel-3:#171B2E;
      --text:#F7F4FA;
      --muted:#B8B5C7;
      --weak:#7E8298;
      --pink:#FF7AB8;
      --cyan:#55E6FF;
      --purple:#A879FF;
      --warn:#FFD166;
      --border:rgba(255,255,255,.10);
      --border-strong:rgba(255,122,184,.35);
      --glass:rgba(255,255,255,.055);
      --glass-hi:rgba(255,122,184,.10);
      --shadow:0 24px 80px rgba(0,0,0,.34);
      --shadow-soft:0 18px 50px rgba(0,0,0,.24);
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:12px;
      --container:1180px;
      --gradient:linear-gradient(135deg,#FF7AB8 0%,#A879FF 48%,#55E6FF 100%);
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%,rgba(255,122,184,.20),transparent 30%),
        radial-gradient(circle at 88% 18%,rgba(85,230,255,.12),transparent 28%),
        radial-gradient(circle at 70% 80%,rgba(168,121,255,.14),transparent 30%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 55%,#060913);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.7),transparent 78%);
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit;color:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(255,122,184,.35);color:#fff}

    .container{
      width:min(var(--container),calc(100% - 44px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(20px);
      background:rgba(7,11,22,.68);
      border-bottom:1px solid rgba(255,255,255,.075);
    }
    .nav{
      height:72px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .logo{font-size:18px}
    .logo-mark{
      width:28px;
      height:28px;
      border-radius:10px;
      background:var(--gradient);
      box-shadow:0 0 24px rgba(255,122,184,.30), inset 0 0 14px rgba(255,255,255,.25);
      position:relative;
      flex:none;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:7px;
      border-radius:50%;
      border:1px solid rgba(255,255,255,.55);
      background:rgba(7,11,22,.18);
    }
    .nav nav{display:flex;align-items:center}
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      list-style:none;
    }
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:0 14px;
      color:var(--muted);
      font-size:14px;
      transition:color .25s var(--ease),background .25s var(--ease);
      border-radius:999px;
    }
    .nav-links a:hover{color:var(--text);background:rgba(255,255,255,.055)}
    .nav-links a.active{
      color:#fff;
      background:rgba(255,122,184,.10);
    }
    .nav-links a.active::after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:4px;
      height:2px;
      border-radius:999px;
      background:var(--gradient);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:0 12px;
      border:1px solid rgba(255,209,102,.28);
      background:rgba(255,209,102,.07);
      color:#FFE2A3;
      border-radius:999px;
      font-size:13px;
      white-space:nowrap;
    }
    .menu-btn{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--border);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
    }
    .menu-btn span{
      width:18px;
      height:2px;
      border-radius:999px;
      background:#fff;
      transition:.25s var(--ease);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 22px;
      border-radius:999px;
      font-weight:700;
      transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
      outline:none;
    }
    .btn-primary{
      background:var(--gradient);
      color:#fff;
      box-shadow:0 14px 34px rgba(255,122,184,.20),0 0 0 1px rgba(255,255,255,.12) inset;
    }
    .btn-secondary{
      background:rgba(255,255,255,.055);
      border:1px solid var(--border);
      color:var(--text);
      backdrop-filter:blur(16px);
    }
    .btn:hover{transform:translateY(-3px)}
    .btn-primary:hover{box-shadow:0 18px 44px rgba(255,122,184,.30),0 0 32px rgba(85,230,255,.10)}
    .btn-secondary:hover{border-color:rgba(85,230,255,.38);background:rgba(85,230,255,.07)}
    a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
      outline:3px solid rgba(85,230,255,.38);
      outline-offset:3px;
    }

    .badge,.tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:max-content;
      max-width:100%;
      border-radius:999px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      color:var(--muted);
      line-height:1;
    }
    .badge{
      padding:9px 12px;
      font-size:13px;
      color:#FFE6F1;
      background:rgba(255,122,184,.10);
      border-color:rgba(255,122,184,.24);
    }
    .badge::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--warn);
      box-shadow:0 0 16px rgba(255,209,102,.55);
    }
    .tag{padding:8px 11px;font-size:13px}
    .tag.cyan{border-color:rgba(85,230,255,.22);background:rgba(85,230,255,.07);color:#CFF8FF}
    .tag.pink{border-color:rgba(255,122,184,.24);background:rgba(255,122,184,.08);color:#FFD7E8}
    .tag.purple{border-color:rgba(168,121,255,.24);background:rgba(168,121,255,.08);color:#E7DCFF}

    .section{padding:92px 0}
    .section-tight{padding:64px 0}
    .section-head{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(280px,430px);
      gap:28px;
      align-items:end;
      margin-bottom:32px;
    }
    .eyebrow{
      color:var(--cyan);
      font-size:14px;
      font-weight:800;
      letter-spacing:.08em;
      margin-bottom:10px;
    }
    h1,h2,h3{line-height:1.15;letter-spacing:-.025em}
    h1{
      font-size:clamp(38px,5.2vw,64px);
      max-width:760px;
      font-weight:800;
      margin:18px 0;
    }
    h2{font-size:clamp(28px,3.3vw,40px);font-weight:800}
    h3{font-size:22px;font-weight:800}
    p{color:var(--muted)}
    .lead{font-size:18px;line-height:1.85;color:#D4D1DD}
    .muted{color:var(--weak)}
    .gradient-text{
      background:var(--gradient);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .glass-card{
      background:var(--glass);
      backdrop-filter:blur(18px);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .glass-card::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:radial-gradient(circle at 20% 0%,rgba(255,122,184,.11),transparent 35%),radial-gradient(circle at 90% 90%,rgba(85,230,255,.08),transparent 34%);
      opacity:.85;
      pointer-events:none;
    }
    .glass-card > *{position:relative}
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:var(--border-strong);
      box-shadow:0 26px 85px rgba(0,0,0,.38),0 0 32px rgba(255,122,184,.08);
    }

    .hero{
      padding:86px 0 64px;
      min-height:710px;
      display:flex;
      align-items:center;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:34px;
      align-items:center;
    }
    .hero-copy .actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:30px;
      align-items:center;
    }
    .hero-note{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--weak);
      font-size:14px;
      margin-top:18px;
    }
    .hero-note span{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 18px rgba(85,230,255,.55);
    }
    .compliance-panel{
      padding:24px;
      border-radius:var(--radius-xl);
      min-height:520px;
    }
    .panel-top{
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:flex-start;
      margin-bottom:22px;
    }
    .abstract-card{
      height:220px;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 30% 24%,rgba(255,122,184,.36),transparent 24%),
        radial-gradient(circle at 76% 64%,rgba(85,230,255,.26),transparent 28%),
        linear-gradient(135deg,rgba(255,255,255,.10),rgba(255,255,255,.035));
      position:relative;
      overflow:hidden;
      margin:16px 0 20px;
    }
    .abstract-card::before{
      content:"";
      position:absolute;
      inset:24px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:22px;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);
      transform:skewX(-10deg);
    }
    .abstract-card::after{
      content:"18+";
      position:absolute;
      right:22px;
      bottom:18px;
      width:72px;
      height:72px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#16101A;
      font-weight:900;
      background:var(--warn);
      box-shadow:0 14px 38px rgba(255,209,102,.22);
    }
    .mini-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .mini-stat{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.055);
      border:1px solid var(--border);
    }
    .mini-stat strong{
      display:block;
      font-size:24px;
      line-height:1;
      margin-bottom:8px;
    }
    .mini-stat span{font-size:13px;color:var(--weak)}

    .three-notes{
      display:grid;
      grid-template-columns:1.15fr .85fr 1fr;
      gap:22px;
    }
    .note-card{padding:28px;min-height:250px}
    .note-card.large{grid-row:span 2;min-height:420px}
    .note-icon{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      background:rgba(255,122,184,.10);
      border:1px solid rgba(255,122,184,.20);
      margin-bottom:18px;
      color:#FFD8EA;
      font-weight:900;
    }
    .note-card h3{margin-bottom:12px}
    .check-list{
      list-style:none;
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .check-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
    }
    .check-list li::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--gradient);
      margin-top:10px;
      flex:none;
      box-shadow:0 0 14px rgba(255,122,184,.35);
    }

    .principle-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .principle-card{
      padding:24px;
      min-height:210px;
    }
    .principle-card .num{
      display:inline-flex;
      width:34px;height:34px;border-radius:12px;
      align-items:center;justify-content:center;
      background:rgba(85,230,255,.08);
      border:1px solid rgba(85,230,255,.20);
      color:#D2FAFF;
      font-weight:900;
      margin-bottom:16px;
    }
    .principle-card h3{font-size:20px;margin-bottom:10px}

    .compare-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
      align-items:stretch;
    }
    .compare-card{
      padding:28px;
      border-radius:var(--radius-xl);
    }
    .compare-card.dim{
      background:rgba(255,255,255,.035);
      border:1px solid rgba(255,255,255,.075);
    }
    .compare-card.highlight{
      background:linear-gradient(135deg,rgba(255,122,184,.12),rgba(85,230,255,.07));
      border:1px solid rgba(255,122,184,.24);
      box-shadow:var(--shadow);
    }
    .compare-card h3{margin-bottom:16px}
    .compare-list{
      list-style:none;
      display:grid;
      gap:14px;
      margin-top:18px;
    }
    .compare-list li{
      display:flex;
      gap:12px;
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      color:var(--muted);
    }
    .compare-list .mark{
      width:24px;height:24px;border-radius:50%;
      display:grid;place-items:center;
      flex:none;
      font-size:13px;
      font-weight:900;
    }
    .dim .mark{background:rgba(126,130,152,.18);color:var(--weak)}
    .highlight .mark{background:var(--gradient);color:#fff}

    .policy-flow{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:start;
    }
    .flow-aside{
      padding:28px;
      position:sticky;
      top:96px;
    }
    .flow-steps{
      display:grid;
      gap:18px;
      counter-reset:step;
    }
    .flow-step{
      padding:24px 24px 24px 72px;
      position:relative;
    }
    .flow-step::after{
      content:"";
      position:absolute;
      left:39px;
      top:64px;
      bottom:-20px;
      width:1px;
      background:linear-gradient(to bottom,rgba(255,122,184,.45),transparent);
    }
    .flow-step:last-child::after{display:none}
    .flow-step::before{
      counter-increment:step;
      content:counter(step);
      position:absolute;
      left:22px;
      top:24px;
      width:34px;
      height:34px;
      border-radius:13px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:var(--gradient);
      box-shadow:0 0 24px rgba(255,122,184,.22);
    }
    .flow-step h3{font-size:20px;margin-bottom:8px}

    .faq-grid{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:28px;
      align-items:start;
    }
    .faq-list{display:grid;gap:14px}
    .faq-item{
      border:1px solid var(--border);
      border-radius:20px;
      overflow:hidden;
      background:rgba(255,255,255,.045);
      transition:border-color .25s var(--ease),background .25s var(--ease);
    }
    .faq-item:hover{border-color:rgba(85,230,255,.24)}
    .faq-q{
      width:100%;
      min-height:60px;
      padding:18px 20px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      text-align:left;
      background:transparent;
      color:#fff;
      font-weight:800;
    }
    .faq-q .plus{
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      flex:none;
      border:1px solid var(--border);
      color:var(--cyan);
      transition:transform .25s var(--ease),background .25s var(--ease);
    }
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .3s var(--ease);
    }
    .faq-a p{padding:0 20px 20px}
    .faq-item.open{
      background:rgba(255,122,184,.055);
      border-color:rgba(255,122,184,.24);
    }
    .faq-item.open .plus{transform:rotate(45deg);background:rgba(255,122,184,.12)}

    .contact-cta{
      display:grid;
      grid-template-columns:1fr .9fr;
      gap:24px;
      padding:30px;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 15% 20%,rgba(255,122,184,.16),transparent 28%),
        radial-gradient(circle at 88% 74%,rgba(85,230,255,.10),transparent 28%),
        rgba(255,255,255,.055);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .contact-cta h2{margin:10px 0 14px}
    .form-card{
      padding:20px;
      border-radius:24px;
      background:rgba(7,11,22,.48);
      border:1px solid rgba(255,255,255,.10);
    }
    .form-grid{display:grid;gap:14px}
    .field label{
      display:block;
      font-size:13px;
      color:var(--muted);
      margin-bottom:7px;
    }
    .field input,.field textarea,.field select{
      width:100%;
      border:1px solid var(--border);
      background:rgba(255,255,255,.055);
      border-radius:14px;
      min-height:46px;
      padding:0 14px;
      outline:none;
      transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
    }
    .field textarea{
      min-height:92px;
      resize:vertical;
      padding:12px 14px;
    }
    .field input:focus,.field textarea:focus,.field select:focus{
      border-color:rgba(85,230,255,.42);
      box-shadow:0 0 0 4px rgba(85,230,255,.08);
      background:rgba(255,255,255,.075);
    }
    .form-hint{
      font-size:13px;
      color:var(--weak);
      margin-top:10px;
    }

    .site-footer{
      border-top:1px solid rgba(255,255,255,.08);
      background:rgba(4,7,14,.72);
      padding:62px 0 28px;
      margin-top:40px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr 1fr 1fr;
      gap:32px;
      align-items:start;
    }
    .footer-brand{
      font-size:18px;
      margin-bottom:14px;
    }
    .footer-col h3{
      font-size:16px;
      margin-bottom:14px;
      color:#fff;
    }
    .footer-col ul{
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-col a,.footer-col li{
      color:var(--muted);
      font-size:14px;
    }
    .footer-col a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:4px}
    .footer-col p{font-size:14px}
    .footer-bottom{
      margin-top:38px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:var(--weak);
      font-size:13px;
    }

    @media (max-width:1024px){
      .nav-cta{display:none}
      .hero-grid,.policy-flow,.contact-cta{grid-template-columns:1fr}
      .hero{padding-top:70px;min-height:auto}
      .compliance-panel{min-height:auto}
      .three-notes{grid-template-columns:1fr 1fr}
      .note-card.large{grid-row:auto;grid-column:span 2;min-height:300px}
      .principle-grid{grid-template-columns:repeat(2,1fr)}
      .section-head,.faq-grid{grid-template-columns:1fr}
      .flow-aside{position:relative;top:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:768px){
      .container{width:min(100% - 40px,var(--container))}
      .menu-btn{display:flex}
      .nav-links{
        position:absolute;
        top:72px;
        left:20px;
        right:20px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border-radius:22px;
        background:rgba(16,24,39,.94);
        border:1px solid var(--border);
        box-shadow:var(--shadow);
        backdrop-filter:blur(20px);
      }
      .nav-links.show{display:flex}
      .nav-links a{
        width:100%;
        min-height:46px;
        justify-content:space-between;
      }
      .nav-links a.active::after{left:14px;right:auto;width:38px}
      .section{padding:68px 0}
      .section-tight{padding:48px 0}
      .three-notes,.compare-wrap{grid-template-columns:1fr}
      .note-card.large{grid-column:auto}
      .hero-copy .actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .mini-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }

    @media (max-width:520px){
      .container{width:min(100% - 32px,var(--container))}
      .logo{font-size:16px}
      h1{font-size:36px}
      .lead{font-size:16px}
      .principle-grid{grid-template-columns:1fr}
      .compliance-panel,.contact-cta{padding:18px;border-radius:24px}
      .note-card,.principle-card,.compare-card,.flow-step{padding:20px}
      .flow-step{padding-left:62px}
      .flow-step::before{left:18px}
      .flow-step::after{left:35px}
      .abstract-card{height:180px}
      .footer-grid{grid-template-columns:1fr}
    }