/* roulang page: index */
:root{
      --primary:#2563EB;
      --primary-dark:#1D4ED8;
      --primary-soft:#EAF2FF;
      --cyan:#06B6D4;
      --cyan-soft:#E8FBFF;
      --accent:#F59E0B;
      --bg:#F7FAFF;
      --bg-soft:#EEF6FF;
      --card:#FFFFFF;
      --text:#172033;
      --muted:#5E6B7E;
      --weak:#8A96A8;
      --border:#DCE7F5;
      --footer:#102033;
      --radius-xl:24px;
      --radius-lg:20px;
      --radius-md:16px;
      --radius-sm:12px;
      --shadow:0 10px 30px rgba(31,75,130,.08);
      --shadow-hover:0 16px 42px rgba(31,75,130,.14);
      --nav-shadow:0 6px 24px rgba(17,32,64,.06);
      --container:1180px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 6%, rgba(6,182,212,.10), transparent 28%),
        radial-gradient(circle at 92% 18%, rgba(37,99,235,.10), transparent 26%),
        var(--bg);
      line-height:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(37,99,235,.28);outline-offset:3px}
    .container{width:min(var(--container), calc(100% - 48px));margin:0 auto}
    .section{padding:88px 0}
    .section-tight{padding:68px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:var(--primary-soft);color:var(--primary);
      font-size:13px;font-weight:700;border:1px solid rgba(37,99,235,.12)
    }
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(6,182,212,.14)}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:6px 10px;border-radius:999px;
      font-size:12px;font-weight:700;background:var(--primary-soft);color:var(--primary);
      border:1px solid rgba(37,99,235,.12)
    }
    .badge.hot{background:#FFF7E6;color:#B86B00;border-color:rgba(245,158,11,.22)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-title{max-width:720px}
    h1,h2,h3{letter-spacing:-.02em;line-height:1.22}
    h1{font-size:52px;font-weight:800}
    h2{font-size:34px;font-weight:800}
    h3{font-size:21px;font-weight:800}
    .lead{font-size:17px;color:var(--muted);line-height:1.85}
    .muted{color:var(--muted)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:13px 22px;border-radius:999px;
      font-size:15px;font-weight:800;line-height:1;
      transition:var(--ease);white-space:nowrap
    }
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(37,99,235,.24)}
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(37,99,235,.30)}
    .btn-secondary{background:#fff;color:var(--primary);border:1px solid rgba(37,99,235,.22)}
    .btn-secondary:hover{background:var(--primary-soft);border-color:rgba(37,99,235,.38);transform:translateY(-2px)}
    .text-link{display:inline-flex;align-items:center;gap:7px;color:var(--primary);font-weight:800}
    .text-link span{transition:var(--ease)}
    .text-link:hover{color:var(--primary-dark)}
    .text-link:hover span{transform:translateX(4px)}

    .site-header{
      position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
      backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(220,231,245,.82);
      box-shadow:var(--nav-shadow)
    }
    .brand-row{height:74px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand-logo{display:flex;align-items:center;gap:12px;min-width:max-content}
    .logo-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--cyan));
      color:#fff;font-weight:900;letter-spacing:-.04em;
      box-shadow:0 10px 24px rgba(37,99,235,.24)
    }
    .logo-text strong{display:block;font-size:20px;line-height:1.1;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--weak);font-size:12px;margin-top:2px}
    .brand-slogan{color:var(--muted);font-size:14px;flex:1;text-align:center}
    .brand-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;background:var(--primary-soft);
      color:var(--primary);font-weight:900
    }
    .channel-row{border-top:1px solid rgba(220,231,245,.72)}
    .channel-nav{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;padding:12px 0}
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-nav a{
      min-height:38px;display:inline-flex;align-items:center;padding:8px 15px;border-radius:999px;
      color:var(--muted);font-size:14px;font-weight:800;border:1px solid transparent;background:transparent;white-space:nowrap
    }
    .channel-nav a:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}
    .channel-nav a.active{background:var(--primary-soft);color:var(--primary);border-color:rgba(37,99,235,.22)}

    .hero{padding:58px 0 88px;position:relative;overflow:hidden}
    .hero:before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(90deg, rgba(247,250,255,.92), rgba(247,250,255,.72)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      z-index:-2
    }
    .hero:after{
      content:"";position:absolute;inset:auto -80px 0 auto;width:420px;height:420px;
      background:radial-gradient(circle, rgba(6,182,212,.18), transparent 68%);
      z-index:-1
    }
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
    .hero-copy h1{margin:18px 0 18px;max-width:760px}
    .hero-copy .lead{max-width:680px}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
    .hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
    .hero-visual{position:relative}
    .mag-card{
      background:#fff;border:1px solid rgba(220,231,245,.94);border-radius:var(--radius-xl);
      box-shadow:var(--shadow-hover);overflow:hidden;position:relative
    }
    .mag-cover{height:246px;position:relative;overflow:hidden;background:var(--bg-soft)}
    .mag-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
    .mag-card:hover .mag-cover img{transform:scale(1.04)}
    .mag-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, transparent 35%, rgba(23,32,51,.58))}
    .cover-label{position:absolute;left:18px;bottom:18px;right:18px;color:#fff;z-index:1}
    .cover-label strong{display:block;font-size:22px;line-height:1.28}
    .official-panel{padding:20px}
    .status-list{display:grid;gap:12px}
    .status-item{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      padding:13px 14px;border-radius:16px;background:var(--bg);
      border:1px solid rgba(220,231,245,.8)
    }
    .status-item b{font-size:14px}
    .status-item em{font-style:normal;color:var(--primary);font-size:12px;font-weight:800}
    .floating-note{
      position:absolute;right:-18px;top:28px;background:#fff;border:1px solid rgba(220,231,245,.9);
      border-radius:18px;padding:14px 16px;box-shadow:var(--shadow);max-width:210px
    }
    .floating-note strong{display:block;font-size:14px}
    .floating-note p{font-size:12px;color:var(--muted);line-height:1.55;margin-top:3px}

    .entrance-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px}
    .feature-card{
      background:#fff;border:1px solid rgba(220,231,245,.9);border-radius:var(--radius-lg);
      padding:24px;box-shadow:var(--shadow);transition:var(--ease);position:relative;overflow:hidden
    }
    .feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(37,99,235,.28)}
    .feature-card.large{min-height:370px;display:flex;flex-direction:column;justify-content:space-between}
    .feature-card.large:after{
      content:"";position:absolute;right:-30px;bottom:-45px;width:190px;height:190px;
      border-radius:50%;background:rgba(37,99,235,.08)
    }
    .icon{
      width:46px;height:46px;border-radius:16px;background:var(--cyan-soft);
      color:#0284A1;display:grid;place-items:center;font-weight:900;font-size:20px;margin-bottom:18px
    }
    .feature-card h3{margin:10px 0 10px}
    .feature-card p{color:var(--muted);font-size:15px}
    .mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .wide-card{grid-column:1/-1;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px}
    .card-image{margin-top:20px;border-radius:18px;overflow:hidden;aspect-ratio:16/9;background:var(--bg-soft)}
    .card-image img{width:100%;height:100%;object-fit:cover}

    .stats-band{background:linear-gradient(135deg,#EEF6FF,#FFFFFF);border-top:1px solid rgba(220,231,245,.8);border-bottom:1px solid rgba(220,231,245,.8)}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .stat-card{
      background:rgba(255,255,255,.86);border:1px solid rgba(220,231,245,.9);
      border-radius:20px;padding:24px;box-shadow:0 8px 24px rgba(31,75,130,.05)
    }
    .stat-card strong{display:block;color:var(--primary);font-size:34px;line-height:1;font-weight:900}
    .stat-card span{display:block;margin-top:10px;color:var(--muted);font-size:14px}

    .topics-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
    .topic-card{
      background:#fff;border:1px solid rgba(220,231,245,.9);border-radius:var(--radius-lg);
      box-shadow:var(--shadow);overflow:hidden;transition:var(--ease)
    }
    .topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(37,99,235,.25)}
    .topic-card.big{display:grid;grid-template-columns:1fr 1fr;min-height:360px}
    .topic-media{overflow:hidden;background:var(--bg-soft)}
    .topic-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
    .topic-card:hover .topic-media img{transform:scale(1.04)}
    .topic-body{padding:24px}
    .topic-body h3{margin:12px 0 10px}
    .topic-body p{color:var(--muted);font-size:15px}
    .topic-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:20px;color:var(--weak);font-size:13px}
    .small-stack{display:grid;gap:24px}
    .topic-card.compact{display:grid;grid-template-columns:138px 1fr}
    .topic-card.compact .topic-body{padding:18px}
    .topic-card.compact .topic-media{min-height:180px}

    .process-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:30px;align-items:start}
    .process-panel{
      background:#fff;border:1px solid rgba(220,231,245,.9);border-radius:var(--radius-xl);
      box-shadow:var(--shadow);padding:28px
    }
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative}
    .step{
      background:#fff;border:1px solid rgba(220,231,245,.9);border-radius:20px;
      padding:24px;box-shadow:var(--shadow);position:relative;transition:var(--ease)
    }
    .step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .step-num{
      width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
      background:var(--primary);color:#fff;font-weight:900;margin-bottom:18px;
      box-shadow:0 10px 20px rgba(37,99,235,.22)
    }
    .step p{color:var(--muted);font-size:15px;margin-top:8px}

    .help-strip{
      display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;
      background:#fff;border:1px solid rgba(220,231,245,.9);border-radius:var(--radius-xl);
      padding:28px;box-shadow:var(--shadow)
    }
    .help-list{display:grid;gap:12px}
    .help-list li{
      list-style:none;display:flex;gap:10px;align-items:flex-start;
      padding:12px 14px;border-radius:16px;background:var(--bg)
    }
    .help-list li:before{content:"✓";color:var(--primary);font-weight:900}

    .faq-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:32px;align-items:start}
    .faq-list{display:grid;gap:14px}
    details{
      background:#fff;border:1px solid rgba(220,231,245,.9);
      border-radius:18px;box-shadow:0 8px 24px rgba(31,75,130,.05);overflow:hidden
    }
    summary{
      list-style:none;cursor:pointer;padding:18px 20px;font-weight:800;
      display:flex;align-items:center;justify-content:space-between;gap:18px;transition:var(--ease)
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-weight:900;flex:0 0 auto}
    details[open] summary{background:var(--primary-soft);color:var(--primary)}
    details[open] summary:after{content:"−";background:#fff}
    details p{padding:0 20px 20px;color:var(--muted);font-size:15px}

    .cta-card{
      position:relative;overflow:hidden;border-radius:28px;
      background:linear-gradient(135deg,#EAF2FF 0%,#FFFFFF 55%,#E8FBFF 100%);
      border:1px solid rgba(220,231,245,.9);box-shadow:var(--shadow-hover);
      padding:38px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center
    }
    .cta-card:before{content:"";position:absolute;right:-80px;top:-100px;width:260px;height:260px;border-radius:50%;background:rgba(37,99,235,.10)}
    .cta-card p{color:var(--muted);max-width:710px;margin-top:10px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

    .contact-mini{
      margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px
    }
    .contact-item{
      background:#fff;border:1px solid rgba(220,231,245,.9);border-radius:18px;
      padding:16px;box-shadow:0 8px 24px rgba(31,75,130,.05)
    }
    .contact-item b{display:block;font-size:14px}
    .contact-item span{display:block;color:var(--muted);font-size:13px;margin-top:4px}

    .site-footer{background:var(--footer);color:#D7E3F4;margin-top:30px}
    .footer-main{padding:54px 0 34px;display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:34px}
    .footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
    .footer-logo .logo-mark{width:40px;height:40px}
    .footer-logo strong{font-size:20px;color:#fff}
    .footer-main p{color:#AEBBD0;font-size:14px;max-width:520px}
    .footer-col h3{font-size:16px;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:#AEBBD0;font-size:14px}
    .footer-links a:hover{color:#BFE7FF;transform:translateX(3px)}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.10);padding:18px 0 24px;
      display:flex;align-items:center;justify-content:space-between;gap:16px;color:#8FA1BA;font-size:13px
    }

    @media (max-width: 1100px){
      h1{font-size:46px}
      .hero-grid,.entrance-layout,.process-wrap{gap:28px}
      .topic-card.big{grid-template-columns:1fr}
      .topic-card.big .topic-media{height:260px}
    }
    @media (max-width: 920px){
      .container{width:min(100% - 40px,var(--container))}
      .brand-slogan{display:none}
      .hero-grid,.entrance-layout,.process-wrap,.faq-layout,.help-strip,.cta-card{grid-template-columns:1fr}
      .hero{padding:46px 0 66px}
      .mini-grid,.stats-grid{grid-template-columns:1fr 1fr}
      .steps{grid-template-columns:1fr}
      .topics-grid{grid-template-columns:1fr}
      .footer-main{grid-template-columns:1fr 1fr}
      .floating-note{right:14px;top:14px}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width: 767px){
      .container{width:min(100% - 32px,var(--container))}
      .section{padding:58px 0}
      .section-tight{padding:48px 0}
      .brand-row{height:66px}
      .brand-actions .btn{display:none}
      .menu-toggle{display:grid}
      .logo-text small{display:none}
      h1{font-size:36px;line-height:1.18}
      h2{font-size:28px}
      h3{font-size:20px}
      .lead{font-size:16px}
      .section-head{display:block}
      .section-head .text-link{margin-top:14px}
      .hero-actions{flex-direction:column}
      .hero-actions .btn{width:100%}
      .mag-cover{height:210px}
      .floating-note{position:static;margin:14px 0 0}
      .feature-card,.process-panel,.step,.topic-body{padding:20px}
      .wide-card{grid-template-columns:1fr}
      .topic-card.compact{grid-template-columns:1fr}
      .topic-card.compact .topic-media{height:190px}
      .contact-mini{grid-template-columns:1fr}
      .footer-main{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 520px){
      .container{width:min(100% - 28px,var(--container))}
      .mini-grid,.stats-grid{grid-template-columns:1fr}
      .brand-logo{gap:9px}
      .logo-mark{width:38px;height:38px;border-radius:13px}
      .logo-text strong{font-size:18px}
      .channel-nav a{padding:8px 13px}
      .hero-tags{gap:8px}
      .badge{font-size:12px}
      .cta-card{padding:24px}
      .cta-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --primary:#2563EB;
      --primary-dark:#1D4ED8;
      --cyan:#06B6D4;
      --accent:#F59E0B;
      --bg:#F7FAFF;
      --bg-soft:#EEF6FF;
      --card:#FFFFFF;
      --text:#172033;
      --muted:#5E6B7E;
      --weak:#8A96A8;
      --border:#DCE7F5;
      --footer:#102033;
      --radius-xl:24px;
      --radius-lg:20px;
      --radius-md:16px;
      --radius-sm:12px;
      --shadow:0 10px 30px rgba(31,75,130,.08);
      --shadow-hover:0 16px 42px rgba(31,75,130,.14);
      --nav-shadow:0 6px 24px rgba(17,32,64,.06);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(37,99,235,.08), transparent 28%),
        linear-gradient(180deg,#fff 0%,var(--bg) 42%,#fff 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,transform .22s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(37,99,235,.28);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:saturate(160%) blur(14px);
      border-bottom:1px solid rgba(220,231,245,.85);
      box-shadow:var(--nav-shadow);
    }
    .brand-row{
      min-height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      padding:14px 0;
    }
    .brand-left{display:flex;align-items:center;gap:14px;min-width:0}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.02em}
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--cyan));
      box-shadow:0 10px 24px rgba(37,99,235,.22);
      font-weight:900;
      line-height:1;
      flex:0 0 auto;
    }
    .brand-logo strong{font-size:20px}
    .brand-badge{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:4px 10px;
      border-radius:999px;
      color:var(--primary);
      background:var(--bg-soft);
      border:1px solid rgba(37,99,235,.16);
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }
    .brand-slogan{
      color:var(--muted);
      font-size:14px;
      margin-left:auto;
      text-align:right;
    }
    .header-actions{display:flex;align-items:center;gap:10px}
    .mobile-menu{
      display:none;
      width:42px;
      height:42px;
      border-radius:12px;
      background:#fff;
      border:1px solid var(--border);
      color:var(--text);
      align-items:center;
      justify-content:center;
    }
    .mobile-menu span,
    .mobile-menu span:before,
    .mobile-menu span:after{
      content:"";
      display:block;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:99px;
      position:relative;
    }
    .mobile-menu span:before{position:absolute;top:-6px}
    .mobile-menu span:after{position:absolute;top:6px}
    .channel-wrap{
      border-top:1px solid rgba(220,231,245,.75);
      background:linear-gradient(180deg,rgba(247,250,255,.92),rgba(255,255,255,.88));
    }
    .channel-nav{
      display:flex;
      align-items:center;
      gap:10px;
      padding:10px 0;
      overflow-x:auto;
      scrollbar-width:none;
      -webkit-overflow-scrolling:touch;
    }
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-nav a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:8px 16px;
      border-radius:999px;
      border:1px solid transparent;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .channel-nav a:hover{
      color:var(--primary-dark);
      background:#fff;
      border-color:rgba(37,99,235,.16);
      transform:translateY(-1px);
    }
    .channel-nav a.active{
      color:var(--primary);
      background:var(--bg-soft);
      border-color:rgba(37,99,235,.24);
      box-shadow:0 6px 18px rgba(37,99,235,.08);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      font-size:15px;
      line-height:1;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:var(--primary);
      box-shadow:0 12px 28px rgba(37,99,235,.22);
    }
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 16px 36px rgba(37,99,235,.28)}
    .btn-secondary{
      color:var(--primary);
      background:#fff;
      border:1px solid rgba(37,99,235,.22);
      box-shadow:0 8px 20px rgba(31,75,130,.05);
    }
    .btn-secondary:hover{background:var(--bg-soft);border-color:rgba(37,99,235,.38);transform:translateY(-2px)}
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--primary);
      font-weight:800;
    }
    .text-link:hover{color:var(--primary-dark)}
    .text-link .arrow{transition:transform .22s ease}
    .text-link:hover .arrow{transform:translateX(4px)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:999px;
      color:var(--primary);
      background:var(--bg-soft);
      border:1px solid rgba(37,99,235,.16);
      font-size:13px;
      font-weight:800;
      line-height:1;
    }
    .badge.orange{color:#B45309;background:#FFF7E6;border-color:rgba(245,158,11,.22)}
    .badge.cyan{color:#087C95;background:#E9FBFF;border-color:rgba(6,182,212,.22)}
    .section{padding:82px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:30px;
    }
    .eyebrow{
      margin:0 0 10px;
      color:var(--primary);
      font-size:14px;
      font-weight:900;
      letter-spacing:.06em;
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(34px,5vw,52px);
      line-height:1.16;
      letter-spacing:-.04em;
      margin-bottom:18px;
      font-weight:900;
    }
    h2{
      font-size:clamp(26px,3vw,36px);
      line-height:1.25;
      letter-spacing:-.03em;
      margin-bottom:12px;
      font-weight:900;
    }
    h3{
      font-size:20px;
      line-height:1.35;
      letter-spacing:-.02em;
      margin-bottom:10px;
      font-weight:850;
    }
    .lead{font-size:17px;color:var(--muted);max-width:760px}
    .muted{color:var(--muted)}
    .weak{color:var(--weak)}
    .hero{
      position:relative;
      overflow:hidden;
      padding:56px 0 42px;
      background:
        linear-gradient(90deg,rgba(247,250,255,.96),rgba(238,246,255,.88)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border-bottom:1px solid rgba(220,231,245,.7);
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(37,99,235,.045) 1px, transparent 1px),
        linear-gradient(90deg,rgba(37,99,235,.045) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(90deg,rgba(0,0,0,.8),transparent 76%);
      pointer-events:none;
    }
    .hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center}
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:18px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .breadcrumb a{color:var(--primary)}
    .breadcrumb a:hover{color:var(--primary-dark)}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .hero-note{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:26px;
      max-width:680px;
    }
    .note-item{
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.75);
      border:1px solid rgba(220,231,245,.9);
      box-shadow:0 8px 22px rgba(31,75,130,.05);
    }
    .note-item strong{display:block;font-size:18px;color:var(--primary);line-height:1.2;margin-bottom:3px}
    .note-item span{display:block;font-size:13px;color:var(--muted);line-height:1.45}
    .hero-panel{
      position:relative;
      padding:18px;
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(220,231,245,.92);
      box-shadow:var(--shadow-hover);
    }
    .hero-cover{
      position:relative;
      overflow:hidden;
      border-radius:22px;
      aspect-ratio:16/10;
      background:var(--bg-soft);
    }
    .hero-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
    .hero-panel:hover .hero-cover img{transform:scale(1.035)}
    .cover-label{
      position:absolute;
      left:16px;
      top:16px;
      display:flex;
      gap:8px;
      flex-wrap:wrap;
    }
    .panel-list{display:grid;gap:10px;margin-top:14px}
    .panel-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 14px;
      border-radius:16px;
      background:linear-gradient(90deg,#F7FAFF,#fff);
      border:1px solid rgba(220,231,245,.82);
    }
    .panel-row span{color:var(--muted);font-size:14px;font-weight:700}
    .panel-row strong{font-size:14px;color:var(--text)}
    .tabs{
      display:flex;
      gap:10px;
      overflow-x:auto;
      padding-bottom:4px;
      scrollbar-width:none;
      -webkit-overflow-scrolling:touch;
    }
    .tabs::-webkit-scrollbar{display:none}
    .tab{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:8px 15px;
      border-radius:999px;
      background:#fff;
      color:var(--muted);
      border:1px solid var(--border);
      font-size:14px;
      font-weight:800;
    }
    .tab:hover{color:var(--primary);border-color:rgba(37,99,235,.26);transform:translateY(-1px)}
    .tab.active{color:#fff;background:var(--primary);border-color:var(--primary);box-shadow:0 10px 24px rgba(37,99,235,.18)}
    .feature-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:stretch;
    }
    .feature-card,.info-card,.process-card,.faq-card,.topic-card,.support-card{
      background:var(--card);
      border:1px solid rgba(220,231,245,.92);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
    }
    .feature-card:hover,.info-card:hover,.process-card:hover,.topic-card:hover,.support-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(37,99,235,.26);
    }
    .feature-card{
      overflow:hidden;
      min-height:100%;
      display:grid;
      grid-template-rows:auto 1fr;
    }
    .feature-image{
      position:relative;
      overflow:hidden;
      aspect-ratio:16/9;
      background:var(--bg-soft);
    }
    .feature-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
    .feature-card:hover img{transform:scale(1.035)}
    .feature-body{padding:24px}
    .feature-body p{color:var(--muted);margin-bottom:18px}
    .mini-grid{display:grid;grid-template-columns:1fr;gap:16px}
    .info-card{padding:22px}
    .info-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px}
    .icon{
      width:46px;
      height:46px;
      border-radius:16px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:var(--primary);
      background:var(--bg-soft);
      font-weight:900;
      font-size:18px;
    }
    .info-card p{color:var(--muted);font-size:15px;margin-bottom:14px}
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .scenario{
      position:relative;
      padding:22px;
      min-height:210px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(220,231,245,.92);
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
    }
    .scenario:after{
      content:"";
      position:absolute;
      width:90px;
      height:90px;
      right:-30px;
      bottom:-30px;
      border-radius:50%;
      background:rgba(6,182,212,.12);
    }
    .scenario:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(37,99,235,.24)}
    .scenario h3{font-size:19px}
    .scenario p{color:var(--muted);font-size:15px;margin:0}
    .data-band{
      padding:36px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(238,246,255,.95),rgba(255,255,255,.92)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      border:1px solid rgba(220,231,245,.9);
      box-shadow:var(--shadow);
    }
    .data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .data-item{
      padding:20px;
      border-radius:18px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(220,231,245,.86);
    }
    .data-item strong{display:block;font-size:34px;line-height:1.1;color:var(--primary);letter-spacing:-.04em;margin-bottom:6px}
    .data-item span{display:block;color:var(--muted);font-size:14px;font-weight:700}
    .topic-layout{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:24px;
      align-items:stretch;
    }
    .topic-banner{
      position:relative;
      min-height:390px;
      overflow:hidden;
      border-radius:var(--radius-xl);
      background:#0f2442;
      box-shadow:var(--shadow-hover);
    }
    .topic-banner img{width:100%;height:100%;object-fit:cover;opacity:.72}
    .topic-overlay{
      position:absolute;
      inset:auto 0 0 0;
      padding:28px;
      color:#fff;
      background:linear-gradient(180deg,transparent,rgba(16,32,51,.88));
    }
    .topic-overlay p{color:rgba(255,255,255,.82);margin-bottom:0}
    .topic-list{display:grid;gap:16px}
    .topic-card{
      display:grid;
      grid-template-columns:140px 1fr;
      gap:18px;
      padding:14px;
      align-items:center;
    }
    .topic-thumb{overflow:hidden;border-radius:16px;aspect-ratio:4/3;background:var(--bg-soft)}
    .topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
    .topic-card:hover img{transform:scale(1.05)}
    .topic-content p{color:var(--muted);font-size:15px;margin:0 0 8px}
    .meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--weak);font-size:13px;font-weight:700}
    .process-wrap{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      position:relative;
    }
    .process-card{padding:24px;position:relative;overflow:hidden}
    .process-number{
      width:44px;
      height:44px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--primary);
      color:#fff;
      font-weight:900;
      box-shadow:0 10px 22px rgba(37,99,235,.22);
      margin-bottom:18px;
    }
    .process-card p{color:var(--muted);margin:0}
    .support-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
      align-items:stretch;
    }
    .support-card{padding:26px}
    .check-list{display:grid;gap:12px;margin:18px 0 0;padding:0;list-style:none}
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:15px;
    }
    .check-list li:before{
      content:"✓";
      width:22px;
      height:22px;
      flex:0 0 22px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(16,185,129,.12);
      color:#059669;
      font-weight:900;
      line-height:1;
      margin-top:2px;
    }
    .faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:30px;align-items:start}
    .faq-card{padding:10px}
    details{
      border-radius:16px;
      border:1px solid transparent;
      background:#fff;
      transition:background .22s ease,border-color .22s ease;
    }
    details + details{margin-top:8px}
    details[open]{background:var(--bg-soft);border-color:rgba(37,99,235,.16)}
    summary{
      list-style:none;
      cursor:pointer;
      padding:17px 18px;
      font-weight:850;
      color:var(--text);
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      border-radius:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:var(--primary);
      background:#fff;
      border:1px solid rgba(37,99,235,.16);
      flex:0 0 auto;
      font-weight:900;
    }
    details[open] summary:after{content:"–";background:var(--primary);color:#fff}
    summary:hover{background:rgba(37,99,235,.05)}
    .faq-answer{padding:0 18px 18px;color:var(--muted);font-size:15px}
    .cta{
      padding:0 0 86px;
    }
    .cta-box{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      padding:34px;
      border-radius:28px;
      background:
        linear-gradient(135deg,rgba(37,99,235,.10),rgba(6,182,212,.11)),
        #fff;
      border:1px solid rgba(37,99,235,.16);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta-box:after{
      content:"";
      position:absolute;
      right:-80px;
      top:-80px;
      width:220px;
      height:220px;
      border-radius:50%;
      background:rgba(37,99,235,.10);
    }
    .cta-box>*{position:relative;z-index:1}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .site-footer{
      background:var(--footer);
      color:rgba(255,255,255,.82);
      padding:54px 0 24px;
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.2fr .6fr .7fr;
      gap:38px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-logo{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:14px}
    .footer-logo strong{font-size:20px}
    .footer-main p{max-width:560px;color:rgba(255,255,255,.68);margin:0}
    .footer-col h3{font-size:16px;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:rgba(255,255,255,.7);font-size:14px}
    .footer-links a:hover{color:#93C5FD;transform:translateX(3px)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:22px;
      color:rgba(255,255,255,.58);
      font-size:13px;
    }
    @media (max-width:1199px){
      .container{width:min(100% - 40px,var(--container))}
      .scenario-grid,.data-grid{grid-template-columns:repeat(2,1fr)}
      .hero-inner{grid-template-columns:1fr .9fr}
    }
    @media (max-width:991px){
      .brand-slogan{display:none}
      .hero-inner,.feature-layout,.topic-layout,.faq-layout,.support-grid{grid-template-columns:1fr}
      .hero-panel{max-width:680px}
      .process-wrap{grid-template-columns:1fr}
      .topic-banner{min-height:320px}
      .footer-main{grid-template-columns:1fr 1fr}
      .footer-main>div:first-child{grid-column:1/-1}
    }
    @media (max-width:767px){
      .container{width:calc(100% - 32px)}
      .brand-row{min-height:66px}
      .brand-badge,.header-actions .btn{display:none}
      .mobile-menu{display:inline-flex}
      .section{padding:56px 0}
      .hero{padding:38px 0 34px}
      .hero-note{grid-template-columns:1fr}
      .section-head{display:block}
      .tabs{margin-top:18px}
      .feature-body,.info-card,.support-card,.process-card{padding:20px}
      .scenario-grid,.data-grid{grid-template-columns:1fr}
      .data-band{padding:22px}
      .topic-card{grid-template-columns:112px 1fr;gap:14px}
      .cta{padding-bottom:62px}
      .cta-box{grid-template-columns:1fr;padding:26px}
      .cta-actions{justify-content:flex-start}
      .footer-main{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .container{width:calc(100% - 28px)}
      .brand-logo strong{font-size:18px}
      .logo-mark{width:38px;height:38px;border-radius:12px}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .topic-card{grid-template-columns:1fr}
      .topic-thumb{aspect-ratio:16/9}
      .channel-nav a{padding-inline:14px}
      h1{letter-spacing:-.03em}
    }