/* roulang page: index */
:root{
      --bg-night:#06111F;
      --bg-deep:#081827;
      --bg-panel:#0B2036;
      --text-main:#102033;
      --text-muted:#617089;
      --text-soft:#AAB9CC;
      --line:#E6EDF5;
      --cyan:#38D5FF;
      --cyan-2:#22C7E8;
      --violet:#8B5CF6;
      --violet-2:#A78BFA;
      --amber:#F7B955;
      --white:#FFFFFF;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:18px;
      --shadow-soft:0 18px 60px rgba(6,17,31,.16);
      --shadow-glow:0 0 34px rgba(56,213,255,.22), 0 18px 60px rgba(6,17,31,.35);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text-main);
      background:#F6FAFF;
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(56,213,255,.28);color:#06111F}
    .site-container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(230,237,245,.95);
      box-shadow:0 10px 30px rgba(16,32,51,.05);
    }
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      background:radial-gradient(circle at 35% 30%,#fff 0 8%,rgba(56,213,255,.85) 9% 32%,rgba(139,92,246,.9) 56%,#081827 100%);
      position:relative;
      box-shadow:0 10px 28px rgba(34,199,232,.22);
      border:1px solid rgba(16,32,51,.08);
    }
    .brand-mark:before{
      content:"";
      position:absolute;left:15px;top:12px;
      width:0;height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      filter:drop-shadow(0 0 6px rgba(255,255,255,.75));
    }
    .brand-title{font-weight:850;letter-spacing:-.02em;color:#102033;font-size:17px;line-height:1.15}
    .brand-sub{display:block;font-size:11px;color:#617089;font-weight:600;letter-spacing:.08em;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{
      padding:9px 12px;
      border-radius:999px;
      color:#42526A;
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .nav-links a:hover,.nav-links a.active{color:#06111F;background:#EDF7FC}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-box{
      width:235px;height:42px;border-radius:999px;
      background:#F1F6FB;border:1px solid #E5EDF6;
      display:flex;align-items:center;gap:9px;padding:0 14px;color:#667892;
      transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .search-box:focus-within{background:#fff;border-color:rgba(34,199,232,.65);box-shadow:0 0 0 4px rgba(56,213,255,.12)}
    .search-box input{border:0;outline:0;background:transparent;width:100%;font-size:13px;color:#102033}
    .btn-primary,.btn-secondary,.btn-dark{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:44px;padding:12px 20px;border-radius:999px;
      font-size:14px;font-weight:800;border:1px solid transparent;
      transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,border-color .22s ease;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      color:#fff;
      box-shadow:0 14px 34px rgba(56,213,255,.22),0 12px 28px rgba(139,92,246,.18);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 44px rgba(56,213,255,.30),0 16px 38px rgba(139,92,246,.24)}
    .btn-secondary{
      color:#DDF8FF;background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.18);
      backdrop-filter:blur(12px);
    }
    .btn-secondary:hover{background:rgba(56,213,255,.10);border-color:rgba(56,213,255,.48);transform:translateY(-2px)}
    .btn-dark{background:#06111F;color:#fff;border-color:#06111F}
    .btn-dark:hover{background:#102033;transform:translateY(-2px);box-shadow:0 16px 32px rgba(16,32,51,.16)}
    .menu-toggle{
      display:none;
      width:42px;height:42px;border-radius:999px;border:1px solid #E6EDF5;background:#F8FAFC;color:#102033;
      align-items:center;justify-content:center;
    }
    .dark-section{
      color:#fff;
      background:
        radial-gradient(circle at 18% 10%,rgba(56,213,255,.24),transparent 28%),
        radial-gradient(circle at 78% 16%,rgba(139,92,246,.30),transparent 30%),
        radial-gradient(circle at 50% 105%,rgba(247,185,85,.11),transparent 34%),
        linear-gradient(180deg,#06111F 0%,#081827 48%,#071423 100%);
      position:relative;
      overflow:hidden;
    }
    .dark-section:before{
      content:"";
      position:absolute;inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.88),rgba(0,0,0,.32),rgba(0,0,0,.78));
      pointer-events:none;
    }
    .dark-section:after{
      content:"";
      position:absolute;inset:0;
      background:radial-gradient(circle at 50% 0,rgba(255,255,255,.08),transparent 18%);
      pointer-events:none;
    }
    .hero{padding:82px 0 72px;position:relative}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.06fr .94fr;gap:42px;align-items:center}
    .eyebrow,.badge{
      display:inline-flex;align-items:center;gap:7px;
      border-radius:999px;
      font-weight:800;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    .eyebrow{
      padding:8px 13px;
      background:rgba(247,185,85,.12);
      border:1px solid rgba(247,185,85,.36);
      color:#FFE3A6;
      font-size:13px;
    }
    .badge{
      padding:6px 10px;
      font-size:12px;
      background:rgba(56,213,255,.12);
      color:#BDF4FF;
      border:1px solid rgba(56,213,255,.25);
    }
    .badge-amber{background:rgba(247,185,85,.16);color:#FFE1A0;border-color:rgba(247,185,85,.35)}
    .hero h1{
      margin:22px 0 18px;
      font-size:clamp(34px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.055em;
      font-weight:900;
    }
    .gradient-text{background:linear-gradient(135deg,#fff 10%,#CFF7FF 42%,#D8C8FF 72%,#FFE0A0 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero p.lead{font-size:18px;line-height:1.85;color:#C8D5E6;max-width:720px;margin:0}
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
    .trust-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;color:#B7C5D8;font-size:13px}
    .trust-row span{display:inline-flex;align-items:center;gap:7px}
    .dashboard{
      border-radius:32px;
      padding:22px;
      background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.065));
      border:1px solid rgba(255,255,255,.18);
      box-shadow:var(--shadow-glow);
      backdrop-filter:blur(18px);
      position:relative;
      overflow:hidden;
    }
    .dashboard:before{
      content:"";
      position:absolute;width:220px;height:220px;border-radius:50%;
      background:rgba(56,213,255,.18);filter:blur(36px);
      right:-80px;top:-80px;
    }
    .dash-head,.dash-row{position:relative;z-index:1}
    .dash-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:18px}
    .dash-head h2{font-size:20px;font-weight:900;margin:0;letter-spacing:-.02em}
    .dash-head p{margin:4px 0 0;color:#AFC0D5;font-size:13px}
    .live-dot{width:9px;height:9px;border-radius:50%;background:#6EF6C2;box-shadow:0 0 0 6px rgba(110,246,194,.12),0 0 18px rgba(110,246,194,.8)}
    .dash-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;position:relative;z-index:1}
    .metric-card{
      border-radius:22px;
      padding:16px;
      background:rgba(6,17,31,.38);
      border:1px solid rgba(255,255,255,.12);
      min-height:132px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .metric-card:hover{transform:translateY(-4px);border-color:rgba(56,213,255,.45);box-shadow:0 16px 36px rgba(0,0,0,.20)}
    .metric-label{font-size:12px;color:#AFC0D5;font-weight:700}
    .metric-value{font-size:30px;line-height:1.2;font-weight:950;margin:10px 0 6px;color:#fff}
    .metric-note{font-size:12px;color:#9FB0C5;line-height:1.55}
    .trend{height:6px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;margin-top:12px}
    .trend i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--violet));width:72%}
    .section{padding:86px 0}
    .section-head{max-width:760px;margin-bottom:34px}
    .section-kicker{display:inline-flex;align-items:center;gap:8px;color:#22AFCF;font-size:13px;font-weight:900;letter-spacing:.05em;margin-bottom:10px}
    .section-title{font-size:clamp(28px,3.2vw,40px);line-height:1.22;font-weight:950;letter-spacing:-.04em;margin:0 0 12px}
    .section-desc{font-size:16px;color:#617089;margin:0;max-width:720px}
    .glass-card{
      background:linear-gradient(180deg,rgba(255,255,255,.11),rgba(255,255,255,.07));
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 16px 50px rgba(0,0,0,.18);
      backdrop-filter:blur(16px);
      border-radius:var(--radius-xl);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .glass-card:hover{transform:translateY(-4px);border-color:rgba(56,213,255,.40);box-shadow:var(--shadow-glow)}
    .stat-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .stat-card{padding:22px;min-height:190px}
    .stat-icon{
      width:44px;height:44px;border-radius:16px;
      display:flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,rgba(56,213,255,.20),rgba(139,92,246,.20));
      border:1px solid rgba(255,255,255,.16);
      margin-bottom:18px;
    }
    .stat-num{font-size:28px;font-weight:950;color:#fff;margin-bottom:6px}
    .stat-card h3{font-size:17px;font-weight:900;margin:0 0 8px;color:#fff}
    .stat-card p{font-size:14px;color:#B7C5D8;margin:0;line-height:1.7}
    .light-section{background:linear-gradient(180deg,#F6FAFF,#FFFFFF)}
    .matrix-grid{display:grid;grid-template-columns:.9fr 1.35fr;gap:24px;align-items:stretch}
    .intro-card{
      border-radius:30px;
      padding:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      position:relative;
      overflow:hidden;
    }
    .intro-card:after{
      content:"";position:absolute;right:-80px;bottom:-80px;width:190px;height:190px;border-radius:50%;
      background:radial-gradient(circle,rgba(56,213,255,.18),transparent 70%);
    }
    .intro-card h2{font-size:30px;line-height:1.25;font-weight:950;letter-spacing:-.04em;margin:0 0 14px}
    .intro-card p{color:#617089;margin:0 0 20px}
    .process-list{display:grid;gap:12px;margin-top:24px;position:relative;z-index:1}
    .process-item{display:flex;gap:12px;align-items:flex-start;padding:13px;border-radius:18px;background:#F6FAFF;border:1px solid #E7F0F8}
    .process-no{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#06111F;color:#fff;font-size:12px;font-weight:900;flex:0 0 auto}
    .process-item strong{display:block;font-size:14px;margin-bottom:2px}
    .process-item span{font-size:13px;color:#617089}
    .service-matrix{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
    .service-card{
      border-radius:24px;
      padding:22px;
      background:linear-gradient(135deg,#fff,#F8FCFF);
      border:1px solid #E6EDF5;
      box-shadow:0 14px 42px rgba(16,32,51,.08);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .service-card:hover{transform:translateY(-4px);border-color:rgba(34,199,232,.50);box-shadow:0 18px 48px rgba(34,199,232,.12)}
    .service-card.large{grid-column:span 3;min-height:210px}
    .service-card.small{grid-column:span 2;min-height:174px}
    .service-icon{font-size:26px;margin-bottom:12px}
    .service-card h3{font-size:19px;font-weight:950;margin:0 0 8px;letter-spacing:-.02em}
    .service-card p{font-size:14px;color:#617089;margin:0 0 13px;line-height:1.72}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px}
    .tag{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800;background:#EAF9FE;color:#087C98}
    .tag.purple{background:#F1ECFF;color:#6441C2}
    .tag.amber{background:#FFF5DE;color:#865D10}
    .news-shell{
      position:relative;z-index:1;
      border-radius:34px;
      padding:26px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(16px);
    }
    .news-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .article-card{
      background:#fff;color:#102033;border-radius:24px;
      border:1px solid #E6EDF5;
      box-shadow:0 16px 40px rgba(0,0,0,.16);
      padding:24px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .article-card:hover{transform:translateY(-4px);border-color:rgba(34,199,232,.55);box-shadow:0 20px 50px rgba(0,0,0,.20)}
    .article-card.featured{min-height:330px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(135deg,#fff 0%,#F2FBFF 60%,#F7F3FF 100%)}
    .article-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px;color:#718198;font-size:12px;font-weight:800}
    .article-card h3{font-size:22px;line-height:1.38;font-weight:950;letter-spacing:-.025em;margin:0 0 12px}
    .article-card:not(.featured) h3{font-size:17px}
    .article-card h3 a:hover{color:#0897B6}
    .article-card p{color:#617089;margin:0 0 16px;font-size:14px;line-height:1.75}
    .read-link{display:inline-flex;align-items:center;gap:8px;color:#0788A5;font-weight:900;font-size:14px}
    .read-link:hover{gap:12px;color:#6B48D7}
    .compact-list{display:grid;gap:14px}
    .empty-state{
      grid-column:1/-1;
      border-radius:26px;
      padding:36px;
      text-align:center;
      background:rgba(255,255,255,.08);
      border:1px dashed rgba(255,255,255,.26);
      color:#DCEBFA;
    }
    .empty-state .empty-icon{font-size:38px;margin-bottom:12px}
    .empty-state h3{font-size:22px;font-weight:950;margin:0 0 8px}
    .empty-state p{margin:0 0 20px;color:#AFC0D5}
    .compare-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:center}
    .compare-card{
      border-radius:30px;
      padding:28px;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.075);
      backdrop-filter:blur(16px);
      min-height:390px;
    }
    .compare-card.better{background:linear-gradient(180deg,rgba(56,213,255,.12),rgba(139,92,246,.09));border-color:rgba(56,213,255,.32);box-shadow:var(--shadow-glow)}
    .compare-card h3{font-size:24px;font-weight:950;margin:0 0 18px;color:#fff}
    .compare-list{display:grid;gap:14px}
    .compare-list li{list-style:none;display:flex;gap:12px;padding:14px;border-radius:18px;background:rgba(255,255,255,.07);color:#C8D5E6}
    .compare-list li:before{content:"";width:10px;height:10px;border-radius:50%;margin-top:9px;background:rgba(255,255,255,.28);flex:0 0 auto}
    .better .compare-list li:before{background:var(--cyan);box-shadow:0 0 14px rgba(56,213,255,.65)}
    .arrow-core{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),var(--violet));box-shadow:var(--shadow-glow);font-weight:950}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:28px;align-items:start}
    .faq-list{display:grid;gap:14px}
    details.faq-item{
      background:#fff;border:1px solid #E6EDF5;border-radius:22px;
      box-shadow:0 14px 36px rgba(16,32,51,.06);
      overflow:hidden;
    }
    details.faq-item summary{
      list-style:none;
      padding:20px 22px;
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      cursor:pointer;font-weight:900;color:#102033;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary:after{content:"+";width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#EEF8FC;color:#0788A5;font-weight:950;flex:0 0 auto}
    details.faq-item[open] summary{background:#F8FCFF}
    details.faq-item[open] summary:after{content:"−";background:#06111F;color:#fff}
    .faq-item p{padding:0 22px 22px;margin:0;color:#617089;font-size:15px}
    .cta-panel{
      border-radius:34px;
      background:
        radial-gradient(circle at 8% 5%,rgba(56,213,255,.24),transparent 28%),
        linear-gradient(135deg,rgba(6,17,31,.96),rgba(11,32,54,.96));
      color:#fff;
      border:1px solid rgba(255,255,255,.14);
      box-shadow:var(--shadow-glow);
      overflow:hidden;
      position:relative;
    }
    .cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;padding:34px}
    .cta-panel h2{font-size:34px;line-height:1.25;font-weight:950;letter-spacing:-.04em;margin:0 0 12px}
    .cta-panel p{color:#B7C5D8;margin:0}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;color:#CFE0F3;font-weight:800}
    .field input,.field select,.field textarea{
      width:100%;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.08);
      color:#fff;
      padding:13px 14px;
      outline:0;
      transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .field select option{color:#102033}
    .field textarea{min-height:112px;resize:vertical}
    .field input::placeholder,.field textarea::placeholder{color:#8FA2B9}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(56,213,255,.72);box-shadow:0 0 0 4px rgba(56,213,255,.12);background:rgba(255,255,255,.11)}
    .form-note{font-size:12px;color:#9FB0C5;margin-top:12px;line-height:1.65}
    .site-footer{
      background:#06111F;color:#B7C5D8;padding:54px 0 24px;
      border-top:1px solid rgba(56,213,255,.22);
      position:relative;
    }
    .site-footer:before{content:"";position:absolute;left:0;top:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),var(--violet),transparent)}
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr .9fr;gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.10)}
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .footer-brand .brand-title{color:#fff}
    .footer-col h3{font-size:15px;color:#fff;margin:0 0 14px;font-weight:950}
    .footer-links{display:grid;gap:9px}
    .footer-links a{font-size:14px;color:#B7C5D8}
    .footer-links a:hover{color:#38D5FF;transform:translateX(3px)}
    .footer-text{font-size:14px;color:#9FB0C5;margin:0;line-height:1.8}
    .copyright{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:20px;color:#8798AD;font-size:13px}
    .focus-ring:focus-visible{outline:3px solid rgba(56,213,255,.42);outline-offset:3px}
    @media (max-width:1100px){
      .nav-links{display:none}
      .menu-toggle{display:flex}
      .search-box{width:190px}
      .hero-grid,.matrix-grid,.faq-wrap,.cta-grid{grid-template-columns:1fr}
      .stat-grid{grid-template-columns:repeat(2,1fr)}
      .service-card.large,.service-card.small{grid-column:span 3}
      .compare-grid{grid-template-columns:1fr}
      .arrow-core{margin:0 auto;transform:rotate(90deg)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:760px){
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-wrap{height:68px}
      .brand-title{font-size:0}
      .brand-title:before{content:"精品国产精选";font-size:16px}
      .brand-sub{display:none}
      .search-box{display:none}
      .nav-actions .btn-primary{padding:10px 14px;min-height:40px;font-size:13px}
      .hero{padding:58px 0 54px}
      .hero p.lead{font-size:16px}
      .dash-grid,.news-grid,.form-grid{grid-template-columns:1fr}
      .stat-grid{grid-template-columns:1fr 1fr;gap:12px}
      .stat-card{padding:18px;min-height:164px}
      .service-matrix{grid-template-columns:1fr}
      .service-card.large,.service-card.small{grid-column:auto;min-height:auto}
      .section{padding:62px 0}
      .news-shell{padding:16px;border-radius:26px}
      .article-card{padding:20px}
      .footer-grid{grid-template-columns:1fr}
      .cta-grid{padding:24px}
      .cta-panel h2{font-size:28px}
      .compare-card{min-height:auto}
    }
    @media (max-width:520px){
      .hero-actions{display:grid;grid-template-columns:1fr}
      .btn-primary,.btn-secondary,.btn-dark{width:100%}
      .stat-grid{grid-template-columns:1fr}
      .dash-head{flex-direction:column}
      .section-title{font-size:27px}
      .intro-card,.compare-card{padding:22px}
      .trust-row{display:grid;gap:8px}
    }

/* roulang page: article */
:root{
      --bg-night:#06111F;
      --bg-night-2:#081827;
      --bg-panel:#0B2036;
      --text-main:#102033;
      --text-soft:#5E6F84;
      --text-muted:#8EA0B6;
      --white:#FFFFFF;
      --surface:#F8FAFC;
      --line:#E6EDF5;
      --cyan:#38D5FF;
      --cyan-2:#22C7E8;
      --violet:#8B5CF6;
      --violet-2:#A78BFA;
      --amber:#F7B955;
      --amber-2:#FFCF6A;
      --radius-sm:14px;
      --radius-md:20px;
      --radius-lg:28px;
      --shadow-soft:0 14px 40px rgba(7,22,38,.10);
      --shadow-glow:0 0 34px rgba(56,213,255,.20), 0 18px 70px rgba(6,17,31,.28);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text-main);
      background:
        radial-gradient(circle at 10% 0%, rgba(56,213,255,.10), transparent 32rem),
        radial-gradient(circle at 85% 8%, rgba(139,92,246,.12), transparent 34rem),
        linear-gradient(180deg,#FFFFFF 0%,#F6FAFF 42%,#EEF5FB 100%);
      line-height:1.75;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease, background .22s ease, border-color .22s ease, transform .22s ease, box-shadow .22s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(56,213,255,.28);color:#06111F}
    :focus-visible{outline:3px solid rgba(56,213,255,.45);outline-offset:3px}
    .site-container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(230,237,245,.92);
      box-shadow:0 8px 26px rgba(16,32,51,.05);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      color:#0A1E33;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      display:inline-flex;
      position:relative;
      flex:0 0 auto;
      background:
        radial-gradient(circle at 68% 28%, rgba(255,207,106,.95) 0 9%, transparent 10%),
        linear-gradient(135deg,#081827 0%,#0E2D4B 45%,#38D5FF 100%);
      box-shadow:0 10px 28px rgba(34,199,232,.22);
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      inset:10px 12px;
      clip-path:polygon(18% 8%,86% 50%,18% 92%);
      background:linear-gradient(135deg,#FFFFFF,#AEEFFF);
      filter:drop-shadow(0 0 8px rgba(56,213,255,.55));
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:5px;
      border:1px solid rgba(255,255,255,.28);
      border-radius:11px;
    }
    .brand-title{font-size:16px;white-space:nowrap}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:4px;
      padding:5px;
      border:1px solid rgba(230,237,245,.8);
      border-radius:999px;
      background:#F8FAFC;
    }
    .nav-links a{
      padding:9px 13px;
      border-radius:999px;
      color:#41536A;
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .nav-links a:hover,.nav-links a.active{
      color:#06111F;
      background:#FFFFFF;
      box-shadow:0 8px 20px rgba(16,32,51,.08);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{
      width:230px;
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 14px;
      border-radius:999px;
      background:#F1F6FB;
      border:1px solid #E6EDF5;
      color:#6C7F96;
      transition:border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .nav-search:hover,.nav-search:focus-within{
      background:#FFFFFF;
      border-color:rgba(56,213,255,.65);
      box-shadow:0 0 0 4px rgba(56,213,255,.10);
    }
    .nav-search input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:#102033;
      font-size:13px;
    }
    .btn-primary,.btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      font-weight:800;
      font-size:14px;
      border:1px solid transparent;
      white-space:nowrap;
      transition:transform .22s ease, box-shadow .22s ease, filter .22s ease, background .22s ease, border-color .22s ease;
    }
    .btn-primary{
      color:#04111F;
      background:linear-gradient(135deg,var(--cyan) 0%,#7DE9FF 44%,var(--violet-2) 100%);
      box-shadow:0 12px 32px rgba(56,213,255,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 18px 46px rgba(56,213,255,.36)}
    .btn-secondary{
      color:#BFEFFF;
      border-color:rgba(56,213,255,.34);
      background:rgba(255,255,255,.07);
      backdrop-filter:blur(14px);
    }
    .btn-secondary:hover{transform:translateY(-2px);background:rgba(56,213,255,.13);border-color:rgba(56,213,255,.72)}
    .mobile-toggle{
      display:none;
      width:42px;
      height:42px;
      border-radius:999px;
      border:1px solid #E6EDF5;
      background:#F8FAFC;
      color:#102033;
      align-items:center;
      justify-content:center;
    }
    .article-hero{
      position:relative;
      isolation:isolate;
      padding:72px 0 58px;
      color:#FFFFFF;
      background:
        radial-gradient(circle at 18% 12%, rgba(56,213,255,.24), transparent 34rem),
        radial-gradient(circle at 82% 5%, rgba(139,92,246,.26), transparent 34rem),
        linear-gradient(135deg,#06111F 0%,#081827 54%,#0B2036 100%);
      overflow:hidden;
    }
    .article-hero:before{
      content:"";
      position:absolute;
      inset:0;
      z-index:-2;
      background-image:
        linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.86),rgba(0,0,0,.28));
    }
    .article-hero:after{
      content:"";
      position:absolute;
      width:440px;
      height:440px;
      right:-130px;
      bottom:-190px;
      z-index:-1;
      border-radius:999px;
      background:radial-gradient(circle, rgba(56,213,255,.23), transparent 68%);
      filter:blur(3px);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:9px;
      margin-bottom:24px;
      color:#A9BCD0;
      font-size:14px;
    }
    .breadcrumb a{color:#DDF8FF;font-weight:700}
    .breadcrumb a:hover{color:#38D5FF}
    .hero-meta-row{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:18px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:30px;
      padding:5px 11px;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      border:1px solid transparent;
    }
    .badge-amber{color:#2E230B;background:linear-gradient(135deg,#FFE3A1,#F7B955);border-color:rgba(255,207,106,.7)}
    .badge-cyan{color:#063140;background:rgba(56,213,255,.14);border-color:rgba(56,213,255,.35)}
    .badge-violet{color:#EEE7FF;background:rgba(139,92,246,.16);border-color:rgba(167,139,250,.34)}
    .article-hero h1{
      max-width:920px;
      margin:0;
      font-size:clamp(32px,5vw,56px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:900;
    }
    .hero-desc{
      max-width:820px;
      margin:20px 0 0;
      color:#C4D3E3;
      font-size:17px;
      line-height:1.85;
    }
    .article-meta{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
      color:#B0C2D5;
      font-size:14px;
    }
    .meta-chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:999px;
      background:rgba(255,255,255,.06);
      backdrop-filter:blur(14px);
    }
    .main-shell{
      position:relative;
      padding:58px 0 72px;
      background:
        radial-gradient(circle at 8% 16%, rgba(56,213,255,.08), transparent 28rem),
        radial-gradient(circle at 92% 28%, rgba(139,92,246,.08), transparent 30rem),
        linear-gradient(180deg,#F7FBFF 0%,#EDF4FA 100%);
    }
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) minmax(280px,340px);
      gap:28px;
      align-items:start;
    }
    .article-card{
      background:#FFFFFF;
      border:1px solid var(--line);
      border-radius:28px;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .article-notice{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:18px 22px;
      background:linear-gradient(135deg,rgba(247,185,85,.16),rgba(56,213,255,.08));
      border-bottom:1px solid #E6EDF5;
      color:#465A70;
      font-size:14px;
    }
    .notice-icon{
      width:34px;
      height:34px;
      flex:0 0 auto;
      border-radius:13px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#06111F;
      background:linear-gradient(135deg,#FFCF6A,#F7B955);
      font-weight:900;
    }
    .article-body{
      padding:38px 42px 42px;
      color:#263A50;
      font-size:17px;
      line-height:1.86;
      word-break:break-word;
    }
    .article-body h2{
      position:relative;
      margin:2.1em 0 .85em;
      padding-left:18px;
      color:#102033;
      font-size:28px;
      line-height:1.32;
      font-weight:900;
      letter-spacing:-.025em;
    }
    .article-body h2:before{
      content:"";
      position:absolute;
      left:0;
      top:.24em;
      width:5px;
      height:1.05em;
      border-radius:999px;
      background:linear-gradient(180deg,var(--cyan),var(--violet));
      box-shadow:0 0 18px rgba(56,213,255,.45);
    }
    .article-body h3{
      margin:1.7em 0 .65em;
      color:#132B44;
      font-size:22px;
      line-height:1.38;
      font-weight:850;
    }
    .article-body p{margin:0 0 1.1em}
    .article-body ul,.article-body ol{margin:1em 0 1.25em;padding-left:1.35em}
    .article-body li{margin:.45em 0;padding-left:.2em}
    .article-body blockquote{
      margin:1.5em 0;
      padding:18px 20px;
      color:#38506A;
      background:#F3F8FC;
      border-left:4px solid var(--cyan-2);
      border-radius:16px;
    }
    .article-body a{
      color:#087EA0;
      font-weight:750;
      border-bottom:1px solid rgba(34,199,232,.35);
    }
    .article-body a:hover{color:#065F79;border-color:#065F79}
    .article-body img{
      margin:1.4em auto;
      border-radius:18px;
      box-shadow:0 18px 44px rgba(16,32,51,.12);
      border:1px solid #E6EDF5;
    }
    .article-body figure{margin:1.5em 0}
    .article-body figcaption{
      margin-top:9px;
      text-align:center;
      color:#7A8EA5;
      font-size:14px;
    }
    .article-body hr{
      margin:2em 0;
      border:0;
      height:1px;
      background:linear-gradient(90deg,transparent,#D7E5F0,transparent);
    }
    .empty-state{
      padding:46px 30px;
      text-align:center;
      background:linear-gradient(135deg,#FFFFFF,#F7FBFF);
      border:1px dashed #CFE0EE;
      border-radius:22px;
    }
    .empty-state h2{
      margin:10px 0 8px;
      padding:0;
      font-size:28px;
    }
    .empty-state h2:before{display:none}
    .empty-state p{color:#64778D}
    .article-footer-tools{
      display:flex;
      align-items:center;
      justify-content:space-between;
      flex-wrap:wrap;
      gap:16px;
      padding:22px 42px 34px;
      border-top:1px solid #E6EDF5;
      background:#FBFDFF;
    }
    .tag-list{display:flex;flex-wrap:wrap;gap:8px}
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      color:#315063;
      background:#EEF8FC;
      border:1px solid #D5EEF7;
      font-size:13px;
      font-weight:800;
    }
    .side-stack{
      display:flex;
      flex-direction:column;
      gap:18px;
      position:sticky;
      top:96px;
    }
    .side-card{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(230,237,245,.92);
      border-radius:24px;
      padding:22px;
      box-shadow:0 14px 36px rgba(16,32,51,.08);
      backdrop-filter:blur(16px);
    }
    .side-card.dark{
      color:#FFFFFF;
      border-color:rgba(255,255,255,.13);
      background:
        radial-gradient(circle at 22% 0%, rgba(56,213,255,.20), transparent 18rem),
        linear-gradient(145deg,rgba(6,17,31,.96),rgba(11,32,54,.94));
      box-shadow:var(--shadow-glow);
    }
    .side-card h2,.side-card h3{
      margin:0 0 12px;
      font-size:20px;
      line-height:1.35;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .side-card p{
      margin:0;
      color:#5F7288;
      font-size:14px;
      line-height:1.75;
    }
    .side-card.dark p{color:#BFD0E2}
    .assist-list{display:grid;gap:10px;margin-top:14px}
    .assist-item{
      display:flex;
      gap:10px;
      padding:12px;
      border-radius:16px;
      background:#F6FAFE;
      border:1px solid #E6EDF5;
      color:#31465E;
      font-size:14px;
      font-weight:700;
    }
    .assist-item:hover{
      transform:translateY(-2px);
      border-color:rgba(56,213,255,.55);
      box-shadow:0 12px 24px rgba(16,32,51,.08);
    }
    .assist-dot{
      width:9px;
      height:9px;
      margin-top:8px;
      border-radius:99px;
      background:linear-gradient(135deg,var(--cyan),var(--violet));
      box-shadow:0 0 12px rgba(56,213,255,.45);
      flex:0 0 auto;
    }
    .mini-posts{display:grid;gap:12px;margin-top:14px}
    .mini-post{
      padding:14px;
      border-radius:18px;
      background:#FFFFFF;
      border:1px solid #E6EDF5;
      box-shadow:0 10px 22px rgba(16,32,51,.05);
    }
    .mini-post:hover{transform:translateY(-3px);border-color:rgba(56,213,255,.55)}
    .mini-post strong{
      display:block;
      color:#142A42;
      font-size:15px;
      line-height:1.45;
      margin-bottom:6px;
    }
    .mini-post span{
      color:#7B8FA5;
      font-size:12px;
      font-weight:700;
    }
    .compliance-section{
      padding:0 0 72px;
      background:#EDF4FA;
    }
    .compliance-panel{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      padding:32px;
      color:#FFFFFF;
      background:
        radial-gradient(circle at 10% 10%, rgba(56,213,255,.22), transparent 28rem),
        radial-gradient(circle at 88% 20%, rgba(247,185,85,.16), transparent 24rem),
        linear-gradient(135deg,#06111F,#0B2036);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow-glow);
    }
    .compliance-panel h2{
      margin:0 0 10px;
      font-size:clamp(26px,3vw,36px);
      line-height:1.22;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .compliance-panel p{
      max-width:820px;
      margin:0;
      color:#C2D3E4;
    }
    .compliance-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:22px;
    }
    .faq-section{
      padding:0 0 78px;
      background:#EDF4FA;
    }
    .section-head{
      margin-bottom:24px;
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
    }
    .section-head h2{
      margin:0;
      color:#102033;
      font-size:clamp(26px,3.2vw,38px);
      line-height:1.2;
      letter-spacing:-.035em;
      font-weight:900;
    }
    .section-head p{
      max-width:620px;
      margin:0;
      color:#60758C;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    details.faq-item{
      border:1px solid #E0EAF3;
      border-radius:20px;
      background:#FFFFFF;
      box-shadow:0 10px 26px rgba(16,32,51,.06);
      overflow:hidden;
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      color:#102033;
      font-weight:900;
      display:flex;
      justify-content:space-between;
      gap:16px;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary:after{
      content:"+";
      width:26px;
      height:26px;
      border-radius:999px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#06111F;
      background:#EAF8FD;
      flex:0 0 auto;
      transition:transform .22s ease, background .22s ease;
    }
    details.faq-item[open] summary:after{content:"−";background:#D9F5FD}
    details.faq-item summary:hover{background:#F8FBFE}
    .faq-body{
      padding:0 20px 18px;
      color:#64778D;
      font-size:15px;
      line-height:1.75;
    }
    .site-footer{
      color:#D8E5F2;
      background:
        linear-gradient(90deg,rgba(56,213,255,.45),rgba(139,92,246,.4),rgba(247,185,85,.26)) top/100% 1px no-repeat,
        radial-gradient(circle at 14% 0%, rgba(56,213,255,.16), transparent 32rem),
        linear-gradient(180deg,#071421,#06111F);
      padding:54px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr 1fr;
      gap:34px;
      padding-bottom:34px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
      font-weight:900;
      color:#FFFFFF;
    }
    .footer-text{
      margin:0;
      color:#9FB1C5;
      font-size:14px;
      line-height:1.8;
    }
    .footer-col h3{
      margin:0 0 12px;
      color:#FFFFFF;
      font-size:16px;
      font-weight:900;
    }
    .footer-links{display:grid;gap:8px}
    .footer-links a{
      color:#9FB1C5;
      font-size:14px;
    }
    .footer-links a:hover{color:#38D5FF;transform:translateX(3px)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.10);
      color:#7F92A7;
      font-size:13px;
    }
    @media (max-width:1080px){
      .nav-links,.nav-search{display:none}
      .mobile-toggle{display:flex}
      .nav-wrap{height:70px}
      .content-layout{grid-template-columns:1fr}
      .side-stack{position:static;display:grid;grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
      .mobile-open .nav-links{
        display:flex;
        position:absolute;
        left:20px;
        right:20px;
        top:76px;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:24px;
        background:#FFFFFF;
        box-shadow:0 18px 48px rgba(16,32,51,.16);
      }
      .mobile-open .nav-links a{text-align:center}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .brand-title{font-size:14px;max-width:138px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .article-hero{padding:48px 0 42px}
      .article-meta{align-items:stretch}
      .meta-chip{max-width:100%}
      .main-shell{padding:34px 0 50px}
      .article-body{padding:28px 22px 30px;font-size:16px}
      .article-body h2{font-size:24px}
      .article-body h3{font-size:20px}
      .article-footer-tools{padding:20px 22px 28px}
      .side-stack{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .section-head p{margin-top:10px}
      .compliance-panel{padding:26px 22px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width:520px){
      .nav-actions .btn-primary{padding:0 13px;font-size:13px}
      .mobile-toggle{width:40px;height:40px}
      .breadcrumb{font-size:13px}
      .hero-desc{font-size:15px}
      .badge{font-size:12px}
      .article-notice{padding:16px}
      .article-body{padding:24px 18px}
      .article-footer-tools{padding:18px}
      .compliance-actions .btn-primary,.compliance-actions .btn-secondary{width:100%}
    }