/* roulang page: index */
:root{
      --bg:#080b12;
      --bg-soft:#0d121d;
      --panel:#111827;
      --panel-2:#151d2e;
      --panel-3:#0f1624;
      --text:#eef5ff;
      --muted:#94a3b8;
      --weak:#64748b;
      --line:rgba(148,163,184,.18);
      --line-strong:rgba(45,245,196,.34);
      --primary:#2df5c4;
      --primary-dark:#16caa1;
      --purple:#8b5cf6;
      --amber:#f59e0b;
      --danger:#fb7185;
      --radius-sm:10px;
      --radius:16px;
      --radius-lg:24px;
      --shadow:0 18px 60px rgba(0,0,0,.36);
      --shadow-soft:0 10px 32px rgba(0,0,0,.22);
      --container:1180px;
      --nav-h:76px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 10%, rgba(45,245,196,.13), transparent 28%),
        radial-gradient(circle at 88% 6%, rgba(139,92,246,.18), transparent 30%),
        linear-gradient(180deg,#070a10 0%,#0a0f19 44%,#070a10 100%);
      line-height:1.72;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.72), transparent 78%);
      z-index:-2;
    }
    body:after{
      content:"";
      position:fixed;
      inset:auto 0 0 0;
      height:260px;
      pointer-events:none;
      background:linear-gradient(180deg,transparent,rgba(45,245,196,.045));
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    input{outline:none}
    .container{width:min(var(--container), calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(8,11,18,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
      transition:var(--ease);
    }
    .nav-wrap{
      height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      color:#06110f;
      font-size:18px;
      background:linear-gradient(135deg,var(--primary),#86ffe2 48%,var(--purple));
      box-shadow:0 0 28px rgba(45,245,196,.26);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.12}
    .brand-text strong{font-size:15px}
    .brand-text span{font-size:12px;color:var(--muted);font-weight:700;letter-spacing:0}
    .main-nav{display:flex;align-items:center;gap:8px}
    .main-nav a{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:#cbd5e1;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .main-nav a:hover,.main-nav a:focus{
      color:var(--text);
      background:rgba(45,245,196,.08);
    }
    .main-nav a.active{
      color:var(--primary);
      background:rgba(45,245,196,.1);
    }
    .main-nav a.active:after{
      content:"";
      position:absolute;
      left:16px;right:16px;bottom:5px;
      height:2px;border-radius:9px;
      background:linear-gradient(90deg,var(--primary),var(--purple));
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-mini{
      width:210px;
      height:42px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(15,22,36,.74);
      display:flex;align-items:center;gap:8px;
      padding:0 14px;
      color:var(--muted);
    }
    .search-mini input{
      width:100%;
      border:0;
      background:transparent;
      color:var(--text);
      font-size:13px;
    }
    .search-mini:focus-within{
      border-color:var(--line-strong);
      box-shadow:0 0 0 4px rgba(45,245,196,.08);
    }
    .menu-toggle{
      display:none;
      width:42px;height:42px;border-radius:12px;
      background:rgba(255,255,255,.06);
      color:var(--text);
      border:1px solid var(--line);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:999px;
      font-weight:800;
      font-size:14px;
      transition:var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#03120f;
      background:linear-gradient(135deg,var(--primary),#9dffe8);
      box-shadow:0 12px 28px rgba(45,245,196,.16);
    }
    .btn-primary:hover,.btn-primary:focus{transform:translateY(-3px);box-shadow:0 18px 38px rgba(45,245,196,.24)}
    .btn-secondary{
      color:var(--text);
      border:1px solid rgba(45,245,196,.34);
      background:rgba(45,245,196,.06);
    }
    .btn-secondary:hover,.btn-secondary:focus{transform:translateY(-3px);border-color:var(--primary);background:rgba(45,245,196,.12)}
    .btn-ghost{
      color:#dbeafe;
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
    }
    .btn-ghost:hover{border-color:rgba(139,92,246,.5);background:rgba(139,92,246,.12);transform:translateY(-2px)}
    .hero{
      position:relative;
      padding:76px 0 50px;
      overflow:hidden;
    }
    .hero-bg{
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(8,11,18,.98) 0%,rgba(8,11,18,.74) 46%,rgba(8,11,18,.88) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.92;
      z-index:-2;
    }
    .hero:after{
      content:"";
      position:absolute;
      left:0;right:0;bottom:0;
      height:1px;
      background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
    }
    .hero-layout{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:42px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(45,245,196,.26);
      color:var(--primary);
      background:rgba(45,245,196,.075);
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 16px var(--primary);
    }
    h1{
      font-size:clamp(34px,5vw,66px);
      line-height:1.06;
      letter-spacing:-.055em;
      margin-bottom:22px;
      max-width:850px;
    }
    .gradient-text{
      background:linear-gradient(135deg,#ffffff 0%,#dffcf5 35%,var(--primary) 72%,#c4b5fd 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      color:#cbd5e1;
      font-size:17px;
      max-width:760px;
      margin-bottom:26px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag,.badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      font-weight:800;
      border:1px solid var(--line);
      color:#cbd5e1;
      background:rgba(255,255,255,.045);
    }
    .tag.green{border-color:rgba(45,245,196,.28);color:#b8fff0;background:rgba(45,245,196,.08)}
    .tag.purple{border-color:rgba(139,92,246,.34);color:#ddd6fe;background:rgba(139,92,246,.12)}
    .tag.amber{border-color:rgba(245,158,11,.34);color:#fde68a;background:rgba(245,158,11,.09)}
    .visual-board{
      border:1px solid rgba(255,255,255,.14);
      border-radius:28px;
      padding:16px;
      background:linear-gradient(180deg,rgba(17,24,39,.78),rgba(8,11,18,.9));
      box-shadow:var(--shadow);
      transform:rotate(1deg);
    }
    .cover-frame{
      position:relative;
      min-height:390px;
      border-radius:22px;
      overflow:hidden;
      background:#111827;
    }
    .cover-frame img{width:100%;height:390px;object-fit:cover;filter:saturate(1.08) contrast(1.04)}
    .cover-frame:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.78));
    }
    .score-strip{
      position:absolute;
      left:18px;right:18px;bottom:18px;
      z-index:2;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:10px;
    }
    .score-tile{
      padding:13px 10px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(6,12,20,.72);
      backdrop-filter:blur(10px);
    }
    .score-tile span{display:block;color:var(--muted);font-size:12px}
    .score-tile strong{display:block;font-size:20px;line-height:1.2;color:var(--text)}
    .section{padding:76px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{color:var(--primary);font-weight:900;font-size:13px;margin-bottom:8px}
    .section-title{
      font-size:clamp(26px,3vw,40px);
      letter-spacing:-.04em;
      line-height:1.16;
    }
    .section-desc{color:var(--muted);max-width:650px;margin-top:10px}
    .focus-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      grid-auto-rows:220px;
      gap:18px;
    }
    .focus-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:var(--panel);
      transition:var(--ease);
    }
    .focus-card:hover{transform:translateY(-5px);border-color:rgba(45,245,196,.32);box-shadow:var(--shadow-soft)}
    .focus-card.large{grid-row:span 2}
    .focus-card img{width:100%;height:100%;object-fit:cover;opacity:.78;transition:var(--ease)}
    .focus-card:hover img{transform:scale(1.035);opacity:.9}
    .focus-overlay{
      position:absolute;
      inset:0;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      padding:22px;
      background:linear-gradient(180deg,transparent 20%,rgba(4,8,13,.92));
    }
    .focus-overlay h3{font-size:22px;line-height:1.25;margin:12px 0 8px;letter-spacing:-.02em}
    .focus-overlay p{color:#cbd5e1;font-size:14px}
    .timeline-wrap{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(17,24,39,.78),rgba(15,22,36,.64));
      padding:26px;
      overflow:hidden;
    }
    .timeline{
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:16px;
      position:relative;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:4%;right:4%;top:32px;
      height:2px;
      background:linear-gradient(90deg,var(--primary),var(--purple),rgba(245,158,11,.6));
      opacity:.75;
    }
    .time-node{position:relative;padding-top:56px}
    .time-node:before{
      content:"";
      position:absolute;top:22px;left:0;
      width:20px;height:20px;border-radius:50%;
      background:var(--bg);
      border:4px solid var(--primary);
      box-shadow:0 0 0 8px rgba(45,245,196,.08);
      z-index:2;
    }
    .time-node:nth-child(even):before{border-color:var(--purple);box-shadow:0 0 0 8px rgba(139,92,246,.1)}
    .time-node strong{display:block;font-size:17px;margin-bottom:6px}
    .time-node p{color:var(--muted);font-size:14px}
    .split{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:24px;
      align-items:stretch;
    }
    .image-panel{
      position:relative;
      min-height:430px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      border:1px solid var(--line);
      background:var(--panel);
    }
    .image-panel img{width:100%;height:100%;object-fit:cover}
    .image-panel .panel-caption{
      position:absolute;left:18px;right:18px;bottom:18px;
      padding:16px;
      border-radius:16px;
      background:rgba(8,11,18,.72);
      backdrop-filter:blur(12px);
      border:1px solid rgba(255,255,255,.12);
    }
    .content-stack{display:grid;gap:16px}
    .info-card{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(17,24,39,.74);
      padding:22px;
      transition:var(--ease);
    }
    .info-card:hover{border-color:rgba(45,245,196,.28);transform:translateY(-3px);background:rgba(21,29,46,.86)}
    .info-card h3{font-size:20px;margin:10px 0 8px}
    .info-card p{color:var(--muted);font-size:15px}
    .dashboard{
      display:grid;
      grid-template-columns:1fr 1fr 1.2fr;
      gap:18px;
    }
    .metric-card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:24px;
      min-height:210px;
      background:
        radial-gradient(circle at 80% 10%,rgba(45,245,196,.12),transparent 34%),
        rgba(17,24,39,.74);
      overflow:hidden;
    }
    .metric-card.wide{grid-row:span 2}
    .metric-label{color:var(--muted);font-size:13px;font-weight:800}
    .metric-value{font-size:42px;line-height:1;margin:18px 0 10px;font-weight:950;letter-spacing:-.04em}
    .metric-note{color:#cbd5e1;font-size:14px}
    .progress{
      height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:20px
    }
    .progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--purple))}
    .ring{
      width:160px;height:160px;border-radius:50%;
      margin:22px auto;
      background:conic-gradient(var(--primary) 0 62%,rgba(139,92,246,.8) 62% 84%,rgba(255,255,255,.08) 84%);
      display:grid;place-items:center;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
    }
    .ring span{
      width:116px;height:116px;border-radius:50%;
      display:grid;place-items:center;
      background:#0d121d;
      font-weight:950;font-size:30px;
    }
    .trend-lines{
      height:170px;
      margin-top:20px;
      border-radius:16px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.04) 1px,transparent 1px) 0 0/100% 34px,
        linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px) 0 0/54px 100%;
      position:relative;
      overflow:hidden;
    }
    .trend-lines svg{position:absolute;inset:0;width:100%;height:100%}
    .category-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .category-card{
      min-height:158px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:20px;
      background:linear-gradient(180deg,rgba(17,24,39,.8),rgba(10,15,25,.78));
      transition:var(--ease);
    }
    .category-card:hover{transform:translateY(-4px);border-color:rgba(139,92,246,.42);box-shadow:0 14px 34px rgba(139,92,246,.1)}
    .category-icon{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:rgba(45,245,196,.1);
      color:var(--primary);
      margin-bottom:14px;
      font-weight:950;
    }
    .category-card h3{font-size:18px;margin-bottom:7px}
    .category-card p{font-size:14px;color:var(--muted)}
    .article-layout{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
      align-items:start;
    }
    .hot-list{display:grid;gap:14px}
    .hot-item{
      display:grid;
      grid-template-columns:132px 1fr;
      gap:16px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:12px;
      background:rgba(17,24,39,.68);
      transition:var(--ease);
    }
    .hot-item:hover{transform:translateX(4px);border-color:rgba(45,245,196,.3)}
    .hot-item img{width:132px;height:92px;object-fit:cover;border-radius:12px}
    .hot-item h3{font-size:17px;line-height:1.35;margin:4px 0 6px}
    .hot-item p{color:var(--muted);font-size:14px}
    .rank-panel{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:22px;
      background:rgba(17,24,39,.78);
    }
    .rank-panel h3{font-size:21px;margin-bottom:14px}
    .rank-list{display:grid;gap:12px;list-style:none}
    .rank-list li{
      display:grid;
      grid-template-columns:34px 1fr auto;
      gap:12px;
      align-items:center;
      padding:12px 0;
      border-bottom:1px solid rgba(148,163,184,.12);
      color:#cbd5e1;
    }
    .rank-list li:last-child{border-bottom:0}
    .rank-no{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:rgba(45,245,196,.1);
      color:var(--primary);
      font-weight:950;
    }
    .rank-heat{color:var(--amber);font-weight:900;font-size:13px}
    .faq-wrap{display:grid;gap:12px}
    .faq-item{
      border:1px solid var(--line);
      border-radius:var(--radius);
      overflow:hidden;
      background:rgba(17,24,39,.72);
    }
    .faq-q{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:18px 20px;
      color:var(--text);
      background:transparent;
      text-align:left;
      font-weight:900;
    }
    .faq-q span:first-child{display:flex;align-items:center;gap:10px}
    .faq-q span:first-child:before{
      content:"?";
      width:24px;height:24px;border-radius:8px;
      display:grid;place-items:center;
      background:rgba(45,245,196,.1);
      color:var(--primary);
      font-size:13px;
    }
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-a p{
      padding:0 20px 20px 54px;
      color:var(--muted);
    }
    .faq-item.active{border-color:rgba(45,245,196,.28)}
    .faq-item.active .faq-a{max-height:220px}
    .faq-item.active .faq-q .plus{transform:rotate(45deg);color:var(--primary)}
    .plus{transition:var(--ease);font-size:22px;color:var(--muted)}
    .cta{
      padding:0 0 78px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      border:1px solid rgba(45,245,196,.22);
      background:
        linear-gradient(90deg,rgba(8,11,18,.92),rgba(13,18,29,.7)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      padding:42px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      box-shadow:var(--shadow-soft);
    }
    .cta-box h2{font-size:clamp(26px,3vw,40px);line-height:1.16;letter-spacing:-.04em;margin-bottom:12px}
    .cta-box p{color:#cbd5e1;max-width:780px}
    .site-footer{
      border-top:1px solid var(--line);
      background:rgba(5,8,14,.78);
      padding:46px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .8fr .9fr 1fr;
      gap:28px;
      margin-bottom:32px;
    }
    .footer-title{font-weight:950;font-size:16px;margin-bottom:12px}
    .footer-text,.footer-links a,.footer-bottom{color:var(--muted);font-size:14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a:hover{color:var(--primary)}
    .footer-bottom{
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.12);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .mobile-panel{display:none}
    @media (max-width:1024px){
      .container{width:min(100% - 32px, var(--container))}
      .nav-actions .search-mini{display:none}
      .hero-layout,.split,.article-layout{grid-template-columns:1fr}
      .visual-board{transform:none}
      .focus-grid{grid-template-columns:1fr 1fr;grid-auto-rows:230px}
      .focus-card.large{grid-row:span 1;grid-column:span 2}
      .timeline{grid-template-columns:repeat(3,1fr)}
      .timeline:before{display:none}
      .dashboard{grid-template-columns:1fr 1fr}
      .metric-card.wide{grid-row:auto;grid-column:span 2}
      .category-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      :root{--nav-h:66px}
      .main-nav{
        display:none;
        position:absolute;
        top:66px;left:16px;right:16px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:18px;
        background:rgba(8,11,18,.96);
        box-shadow:var(--shadow-soft);
        flex-direction:column;
        align-items:stretch;
      }
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .menu-toggle{display:grid;place-items:center}
      .nav-actions .btn{display:none}
      .brand-text strong{font-size:14px}
      .hero{padding:52px 0 38px}
      .hero-actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .score-strip{grid-template-columns:repeat(2,1fr)}
      .cover-frame,.cover-frame img{height:auto;min-height:360px}
      .section{padding:56px 0}
      .section-head{display:block}
      .section-head .btn{margin-top:18px}
      .focus-grid{grid-template-columns:1fr;grid-auto-rows:250px}
      .focus-card.large{grid-column:auto}
      .timeline{grid-template-columns:1fr}
      .time-node{padding-top:0;padding-left:42px}
      .time-node:before{top:3px;left:2px}
      .dashboard{grid-template-columns:1fr}
      .metric-card.wide{grid-column:auto}
      .category-grid{grid-template-columns:1fr}
      .hot-item{grid-template-columns:108px 1fr}
      .hot-item img{width:108px;height:86px}
      .cta-box{grid-template-columns:1fr;padding:28px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .container{width:min(100% - 24px, var(--container))}
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .brand-text span{display:none}
      h1{font-size:34px}
      .hero-lead{font-size:15px}
      .cover-frame{min-height:330px}
      .score-strip{left:12px;right:12px;bottom:12px;gap:8px}
      .score-tile strong{font-size:18px}
      .focus-overlay{padding:18px}
      .image-panel{min-height:330px}
      .hot-item{grid-template-columns:1fr}
      .hot-item img{width:100%;height:auto;aspect-ratio:16/9}
      .rank-list li{grid-template-columns:30px 1fr}
      .rank-heat{grid-column:2}
      .faq-a p{padding-left:20px}
    }
    @media (max-width:414px){
      .section-title{font-size:25px}
      .hero-tags .tag{max-width:100%}
      .score-strip{position:relative;left:auto;right:auto;bottom:auto;margin:12px;background:rgba(8,11,18,.25)}
      .cover-frame img{height:300px}
      .cover-frame:after{background:linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.45))}
    }
    @media (max-width:375px){
      .nav-wrap{gap:12px}
      .brand-text strong{font-size:13px}
      .hero{padding-top:42px}
      h1{font-size:31px}
      .metric-value{font-size:36px}
      .cta-box{padding:22px}
    }

/* roulang page: category1 */
:root{
      --bg:#070a0f;
      --bg-soft:#0d1119;
      --bg-card:#121824;
      --bg-card-2:#151d2b;
      --text:#eef5f4;
      --text-muted:#98a7b5;
      --text-soft:#c8d4df;
      --line:rgba(143, 255, 224, .16);
      --line-strong:rgba(143, 255, 224, .28);
      --primary:#20f0bd;
      --primary-2:#7af7dc;
      --purple:#8d63ff;
      --amber:#ffb84d;
      --danger:#ff6f91;
      --radius-sm:10px;
      --radius:16px;
      --radius-lg:24px;
      --shadow:0 18px 60px rgba(0,0,0,.36);
      --shadow-soft:0 12px 32px rgba(0,0,0,.22);
      --container:1180px;
      --header-h:74px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 18% 8%, rgba(32,240,189,.14), transparent 32%),
        radial-gradient(circle at 86% 16%, rgba(141,99,255,.16), transparent 30%),
        linear-gradient(180deg,#070a0f 0%,#0a0e15 42%,#070a0f 100%);
      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,.032) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.75),rgba(0,0,0,.12));
      z-index:-2;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      height:var(--header-h);
      display:flex;
      align-items:center;
      background:rgba(7,10,15,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(143,255,224,.14);
    }
    .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-weight:900;
      letter-spacing:.04em;
      color:#06110f;
      background:linear-gradient(135deg,var(--primary),var(--primary-2) 48%,var(--purple));
      box-shadow:0 0 26px rgba(32,240,189,.28);
      flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.18}
    .brand-text strong{font-size:15px;letter-spacing:.01em;white-space:nowrap}
    .brand-text span{font-size:12px;color:var(--text-muted);margin-top:3px}
    .main-nav{
      display:flex;
      align-items:center;
      gap:6px;
      padding:6px;
      border:1px solid rgba(255,255,255,.06);
      background:rgba(255,255,255,.035);
      border-radius:999px;
    }
    .main-nav a{
      position:relative;
      padding:9px 16px;
      border-radius:999px;
      color:var(--text-soft);
      font-size:14px;
      transition:color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
    }
    .main-nav a:hover{
      color:#fff;
      background:rgba(32,240,189,.08);
      transform:translateY(-1px);
    }
    .main-nav a.active{
      color:var(--primary-2);
      background:rgba(32,240,189,.1);
    }
    .main-nav a.active:after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:5px;
      height:2px;
      border-radius:3px;
      background:linear-gradient(90deg,var(--primary),var(--purple));
    }
    .header-actions{display:flex;align-items:center;gap:10px}
    .quick-search{
      width:210px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border:1px solid rgba(143,255,224,.15);
      background:rgba(10,15,23,.72);
      border-radius:999px;
      color:var(--text-muted);
      font-size:13px;
    }
    .quick-search input{
      width:100%;
      min-width:0;
      color:var(--text);
      background:transparent;
      border:0;
      outline:0;
    }
    .quick-search:focus-within{
      border-color:rgba(32,240,189,.55);
      box-shadow:0 0 0 3px rgba(32,240,189,.1);
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:13px;
      color:var(--text);
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:11px 18px;
      border-radius:999px;
      font-weight:700;
      font-size:14px;
      transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
    }
    .btn-primary{
      color:#06110f;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 12px 34px rgba(32,240,189,.22);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 48px rgba(32,240,189,.32)}
    .btn-secondary{
      color:var(--primary-2);
      border:1px solid rgba(32,240,189,.35);
      background:rgba(32,240,189,.05);
    }
    .btn-secondary:hover{transform:translateY(-3px);background:rgba(32,240,189,.1);border-color:rgba(32,240,189,.62)}
    .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible,.chip:focus-visible{
      outline:3px solid rgba(32,240,189,.35);
      outline-offset:3px;
    }
    .page-hero{
      position:relative;
      padding:52px 0 34px;
      overflow:hidden;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(7,10,15,.92), rgba(7,10,15,.66), rgba(7,10,15,.92)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.78;
      z-index:-1;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      color:var(--text-muted);
      font-size:13px;
      margin-bottom:24px;
    }
    .breadcrumb a{color:var(--primary-2)}
    .breadcrumb span{opacity:.78}
    .hero-panel{
      display:grid;
      grid-template-columns:1.03fr .97fr;
      gap:26px;
      align-items:stretch;
    }
    .hero-copy{
      padding:34px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,rgba(18,24,36,.86),rgba(13,17,25,.68));
      box-shadow:var(--shadow);
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(32,240,189,.22);
      border-radius:999px;
      color:var(--primary-2);
      background:rgba(32,240,189,.07);
      font-size:13px;
      font-weight:700;
    }
    .eyebrow:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 14px var(--primary);
    }
    h1{
      margin:18px 0 16px;
      font-size:clamp(32px,5vw,58px);
      line-height:1.08;
      letter-spacing:-.045em;
    }
    .hero-lead{
      margin:0;
      max-width:760px;
      color:var(--text-soft);
      font-size:17px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .hero-note{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:28px;
    }
    .note-item{
      padding:14px;
      border-radius:var(--radius);
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.07);
    }
    .note-item b{display:block;color:#fff;font-size:18px}
    .note-item span{display:block;color:var(--text-muted);font-size:12px;margin-top:3px}
    .hero-visual{
      position:relative;
      min-height:420px;
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid var(--line-strong);
      background:#0b1018;
      box-shadow:var(--shadow);
    }
    .hero-visual img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.84;
    }
    .hero-visual:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(7,10,15,.08),rgba(7,10,15,.88));
    }
    .visual-overlay{
      position:absolute;
      left:20px;
      right:20px;
      bottom:20px;
      z-index:2;
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .metric-card{
      padding:16px;
      border-radius:18px;
      background:rgba(7,10,15,.72);
      border:1px solid rgba(143,255,224,.18);
      backdrop-filter:blur(12px);
    }
    .metric-card span{font-size:12px;color:var(--text-muted)}
    .metric-card strong{display:block;font-size:26px;line-height:1.1;margin-top:5px}
    .metric-card em{font-style:normal;color:var(--primary-2);font-size:12px}
    .section{padding:62px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:22px;
      margin-bottom:24px;
    }
    .section-kicker{color:var(--primary-2);font-weight:800;font-size:13px;letter-spacing:.06em}
    .section-title{margin:6px 0 0;font-size:clamp(24px,3vw,36px);line-height:1.2;letter-spacing:-.03em}
    .section-desc{max-width:640px;margin:0;color:var(--text-muted);font-size:15px}
    .filter-bar{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:14px;
      border:1px solid rgba(143,255,224,.14);
      border-radius:20px;
      background:rgba(18,24,36,.58);
      margin-bottom:28px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 13px;
      border-radius:999px;
      color:var(--text-soft);
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.045);
      font-size:13px;
      transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
    }
    .chip:hover,.chip.is-active{
      transform:translateY(-2px);
      color:var(--primary-2);
      border-color:rgba(32,240,189,.34);
      background:rgba(32,240,189,.08);
    }
    .content-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:26px;
      align-items:start;
    }
    .feature-card{
      display:grid;
      grid-template-columns:260px minmax(0,1fr);
      gap:22px;
      padding:18px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(143,255,224,.14);
      background:linear-gradient(135deg,rgba(18,24,36,.82),rgba(13,17,25,.72));
      box-shadow:var(--shadow-soft);
      margin-bottom:18px;
      transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
    }
    .feature-card:hover{
      transform:translateY(-4px);
      border-color:rgba(32,240,189,.32);
      box-shadow:0 20px 50px rgba(0,0,0,.32);
    }
    .thumb{
      position:relative;
      aspect-ratio:16/10;
      overflow:hidden;
      border-radius:18px;
      background:#0b1018;
    }
    .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s var(--ease),opacity .25s var(--ease);
      opacity:.9;
    }
    .feature-card:hover .thumb img{transform:scale(1.05);opacity:1}
    .thumb .badge{
      position:absolute;
      left:12px;
      top:12px;
      z-index:2;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      padding:5px 9px;
      border-radius:999px;
      color:#07100f;
      background:var(--primary);
      font-size:12px;
      font-weight:800;
    }
    .badge.purple{background:var(--purple);color:#fff}
    .badge.amber{background:var(--amber);color:#16100a}
    .card-body h3{margin:4px 0 10px;font-size:22px;line-height:1.28;letter-spacing:-.02em}
    .card-body p{margin:0;color:var(--text-muted);font-size:14px}
    .meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px 16px;
      margin:15px 0;
      color:var(--text-muted);
      font-size:13px;
    }
    .meta span{display:inline-flex;align-items:center;gap:6px}
    .mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .tag{
      display:inline-flex;
      padding:5px 9px;
      border-radius:9px;
      color:var(--primary-2);
      background:rgba(32,240,189,.07);
      border:1px solid rgba(32,240,189,.16);
      font-size:12px;
    }
    .inline-cta{
      display:inline-flex;
      margin-top:16px;
      color:var(--primary-2);
      font-weight:800;
      font-size:14px;
    }
    .sidebar{
      position:sticky;
      top:94px;
      display:grid;
      gap:16px;
    }
    .side-card{
      padding:20px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(143,255,224,.14);
      background:rgba(18,24,36,.72);
      box-shadow:var(--shadow-soft);
    }
    .side-title{
      margin:0 0 14px;
      font-size:16px;
      letter-spacing:-.01em;
    }
    .search-box{
      display:flex;
      gap:8px;
      border:1px solid rgba(143,255,224,.16);
      border-radius:14px;
      background:rgba(7,10,15,.58);
      padding:9px;
    }
    .search-box input{
      flex:1;
      min-width:0;
      color:var(--text);
      background:transparent;
      border:0;
      outline:0;
      font-size:14px;
    }
    .search-box button{
      padding:8px 10px;
      border-radius:11px;
      color:#07100f;
      background:var(--primary);
      font-weight:800;
    }
    .hot-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .hot-list li{
      display:flex;
      gap:10px;
      padding:11px;
      border-radius:14px;
      background:rgba(255,255,255,.035);
      color:var(--text-soft);
      font-size:13px;
    }
    .hot-list b{
      color:var(--primary-2);
      min-width:20px;
    }
    .notice{
      border-color:rgba(255,184,77,.24);
      background:linear-gradient(135deg,rgba(255,184,77,.09),rgba(18,24,36,.72));
    }
    .notice p{margin:0;color:var(--text-soft);font-size:14px}
    .dashboard{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
    }
    .panel{
      padding:22px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(143,255,224,.14);
      background:rgba(18,24,36,.72);
      box-shadow:var(--shadow-soft);
    }
    .panel h3{margin:0 0 14px;font-size:20px}
    .bars{display:grid;gap:14px}
    .bar-row{display:grid;gap:7px}
    .bar-meta{display:flex;justify-content:space-between;color:var(--text-soft);font-size:13px}
    .bar-track{height:9px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
    .bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--purple))}
    .timeline{
      position:relative;
      display:grid;
      gap:14px;
      padding-left:18px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:5px;
      top:8px;
      bottom:8px;
      width:2px;
      background:linear-gradient(var(--primary),rgba(141,99,255,.25));
    }
    .time-item{
      position:relative;
      padding:16px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .time-item:before{
      content:"";
      position:absolute;
      left:-17px;
      top:22px;
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 14px var(--primary);
    }
    .time-item b{display:block;margin-bottom:4px}
    .time-item span{color:var(--text-muted);font-size:13px}
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .scenario-card{
      min-height:190px;
      padding:22px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(143,255,224,.14);
      background:
        linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02)),
        rgba(18,24,36,.72);
      transition:transform .25s var(--ease),border-color .25s var(--ease);
    }
    .scenario-card:hover{transform:translateY(-4px);border-color:rgba(141,99,255,.38)}
    .scenario-icon{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:var(--primary-2);
      background:rgba(32,240,189,.08);
      border:1px solid rgba(32,240,189,.16);
      margin-bottom:14px;
      font-weight:900;
    }
    .scenario-card h3{margin:0 0 8px;font-size:18px}
    .scenario-card p{margin:0;color:var(--text-muted);font-size:14px}
    .process{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      counter-reset:step;
    }
    .process-card{
      counter-increment:step;
      position:relative;
      padding:22px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(143,255,224,.14);
      background:rgba(18,24,36,.72);
    }
    .process-card:before{
      content:"0" counter(step);
      display:inline-flex;
      margin-bottom:16px;
      color:var(--primary-2);
      font-size:13px;
      font-weight:900;
      letter-spacing:.08em;
    }
    .process-card h3{margin:0 0 8px;font-size:18px}
    .process-card p{margin:0;color:var(--text-muted);font-size:14px}
    .faq-wrap{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:26px;
      align-items:start;
    }
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border:1px solid rgba(143,255,224,.14);
      border-radius:18px;
      background:rgba(18,24,36,.72);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      padding:18px 20px;
      color:var(--text);
      background:transparent;
      text-align:left;
      font-weight:800;
    }
    .faq-question span:first-child{display:flex;align-items:center;gap:10px}
    .faq-question span:first-child:before{
      content:"?";
      width:24px;
      height:24px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#06110f;
      background:var(--primary);
      font-size:13px;
      flex:0 0 auto;
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s var(--ease);
    }
    .faq-answer p{
      margin:0;
      padding:0 20px 18px 54px;
      color:var(--text-muted);
      font-size:14px;
    }
    .faq-item.open .faq-answer{max-height:180px}
    .faq-item.open .faq-question .plus{transform:rotate(45deg);color:var(--primary-2)}
    .plus{transition:transform .25s var(--ease);font-size:24px;color:var(--text-muted)}
    .cta{
      padding:34px;
      border-radius:28px;
      border:1px solid rgba(143,255,224,.2);
      background:
        linear-gradient(135deg,rgba(32,240,189,.13),rgba(141,99,255,.1)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta:before{
      content:"";
      position:absolute;
      inset:0;
      background:rgba(7,10,15,.72);
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .cta h2{margin:0 0 10px;font-size:clamp(24px,3vw,36px);line-height:1.2}
    .cta p{margin:0;color:var(--text-soft);max-width:720px}
    .site-footer{
      padding:48px 0 24px;
      border-top:1px solid rgba(143,255,224,.14);
      background:rgba(7,10,15,.86);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .7fr .8fr 1fr;
      gap:28px;
    }
    .footer-text{color:var(--text-muted);font-size:14px;margin:0}
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:var(--text-muted);
      font-size:14px;
      transition:color .2s var(--ease),transform .2s var(--ease);
    }
    .footer-links a:hover{
      color:var(--primary-2);
      transform:translateX(3px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:22px;
      margin-top:28px;
      border-top:1px solid rgba(255,255,255,.07);
      color:var(--text-muted);
      font-size:13px;
    }
    @media (max-width:1280px){
      .container{width:min(calc(100% - 36px),1120px)}
      .quick-search{width:180px}
    }
    @media (max-width:1024px){
      .header-actions{display:none}
      .hero-panel,.content-grid,.faq-wrap{grid-template-columns:1fr}
      .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .dashboard,.scenario-grid,.process{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .hero-visual{min-height:360px}
    }
    @media (max-width:768px){
      :root{--header-h:auto}
      .site-header{padding:12px 0}
      .header-inner{align-items:flex-start}
      .brand-text strong{font-size:14px;white-space:normal}
      .menu-toggle{display:grid;place-items:center}
      .main-nav{
        position:absolute;
        left:20px;
        right:20px;
        top:66px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:18px;
        padding:10px;
        background:rgba(7,10,15,.96);
        box-shadow:var(--shadow);
      }
      .main-nav.is-open{display:flex}
      .main-nav a{padding:12px 14px}
      .page-hero{padding-top:34px}
      .hero-copy{padding:24px}
      .hero-note,.visual-overlay{grid-template-columns:1fr}
      .feature-card{grid-template-columns:1fr}
      .thumb{aspect-ratio:16/9}
      .section{padding:46px 0}
      .section-head{align-items:flex-start;flex-direction:column}
      .sidebar{grid-template-columns:1fr}
      .cta-inner{flex-direction:column;align-items:flex-start}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .container{width:min(calc(100% - 28px),var(--container))}
      h1{font-size:34px}
      .hero-copy{padding:20px;border-radius:20px}
      .hero-visual{min-height:330px;border-radius:20px}
      .metric-card strong{font-size:22px}
      .dashboard,.scenario-grid,.process,.footer-grid{grid-template-columns:1fr}
      .feature-card{padding:14px}
      .card-body h3{font-size:20px}
      .filter-bar{padding:10px}
      .chip{font-size:12px}
      .cta{padding:24px}
    }
    @media (max-width:414px){
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .brand-text span{display:none}
      .hero-actions .btn{width:100%}
      .visual-overlay{left:14px;right:14px;bottom:14px}
    }
    @media (max-width:375px){
      .container{width:min(calc(100% - 22px),var(--container))}
      h1{font-size:31px}
      .section-title{font-size:24px}
      .hero-lead{font-size:15px}
      .note-item b{font-size:16px}
    }