/* roulang page: index */
:root{
      --cyan:#16B8C6;
      --violet:#7C3AED;
      --lime:#B5E853;
      --text:#172033;
      --muted:#667085;
      --soft:#F7FBFA;
      --soft-2:#F5F7FF;
      --line:#E7EAF3;
      --white:#FFFFFF;
      --shadow-cyan:0 18px 50px rgba(22,184,198,.12);
      --shadow-violet:0 12px 32px rgba(124,58,237,.10);
      --radius-xl:36px;
      --radius-lg:28px;
      --radius-md:20px;
      --gradient:linear-gradient(135deg,#16B8C6 0%,#7C3AED 65%,#B5E853 120%);
      --gradient-soft:linear-gradient(135deg,rgba(22,184,198,.12),rgba(124,58,237,.10),rgba(181,232,83,.13));
    }
    *{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);
      background:
        radial-gradient(circle at 8% 8%,rgba(22,184,198,.13),transparent 32%),
        radial-gradient(circle at 88% 5%,rgba(124,58,237,.12),transparent 28%),
        linear-gradient(180deg,#F7FBFA 0%,#FFFFFF 34%,#F5F7FF 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    .site-container{width:min(1240px,calc(100% - 40px));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid rgba(22,184,198,.20);
      border-radius:999px;background:rgba(255,255,255,.76);box-shadow:0 8px 22px rgba(22,184,198,.08);
      font-size:13px;font-weight:700;color:#0F8A95;letter-spacing:.02em;
    }
    .eyebrow-dot{width:8px;height:8px;border-radius:999px;background:var(--gradient);box-shadow:0 0 0 5px rgba(22,184,198,.12)}
    .gradient-text{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:14px 22px;
      font-weight:700;transition:.25s ease;border:1px solid transparent;white-space:nowrap;min-height:48px;
    }
    .btn-primary{background:var(--gradient);color:white;box-shadow:0 14px 32px rgba(22,184,198,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 45px rgba(124,58,237,.20)}
    .btn-secondary{background:rgba(255,255,255,.82);border-color:var(--line);color:var(--text)}
    .btn-secondary:hover{border-color:rgba(22,184,198,.55);background:rgba(22,184,198,.08);transform:translateY(-2px)}
    .btn:focus-visible,.nav-link:focus-visible,input:focus-visible,button:focus-visible{
      outline:none;box-shadow:0 0 0 4px rgba(22,184,198,.24)
    }
    .card{
      background:rgba(255,255,255,.86);border:1px solid rgba(231,234,243,.95);border-radius:var(--radius-lg);
      box-shadow:var(--shadow-cyan);transition:.25s ease;position:relative;overflow:hidden;
    }
    .card:hover{transform:translateY(-4px);border-color:rgba(22,184,198,.42);box-shadow:0 22px 60px rgba(22,184,198,.15)}
    .card-topline:before{
      content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient);opacity:.9
    }
    .icon-box{
      width:48px;height:48px;border-radius:16px;background:var(--gradient-soft);display:grid;place-items:center;
      color:#0E8E9B;font-weight:900;border:1px solid rgba(22,184,198,.15)
    }
    .badge{
      display:inline-flex;align-items:center;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:800;
      background:rgba(181,232,83,.22);color:#56750A;border:1px solid rgba(181,232,83,.42)
    }
    .header{
      position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(231,234,243,.9)
    }
    .nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .nav-left,.nav-right,.nav-menu{display:flex;align-items:center;gap:24px}
    .logo{display:inline-flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.02em}
    .logo-mark{
      width:42px;height:42px;border-radius:15px;background:var(--gradient);color:#fff;display:grid;place-items:center;
      box-shadow:0 12px 26px rgba(22,184,198,.24);font-weight:900
    }
    .nav-link{
      position:relative;font-size:15px;font-weight:650;color:#344054;padding:8px 0;transition:.2s ease
    }
    .nav-link:hover,.nav-link.active{color:#0F9BA7}
    .nav-link:after{
      content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:999px;background:var(--gradient);
      transform:scaleX(0);transform-origin:left;transition:.25s ease
    }
    .nav-link:hover:after,.nav-link.active:after{transform:scaleX(1)}
    .search-pill{
      height:42px;width:230px;border-radius:999px;border:1px solid var(--line);background:#F8FAFC;
      display:flex;align-items:center;gap:8px;padding:0 14px;color:#98A2B3
    }
    .search-pill input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--text)}
    .mobile-toggle{display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:white}
    .mobile-panel{
      display:none;margin:0 auto 16px;width:min(1240px,calc(100% - 40px));padding:16px;border-radius:24px;background:white;
      border:1px solid var(--line);box-shadow:var(--shadow-cyan)
    }
    .hero{padding:84px 0 56px;position:relative}
    .hero:before{
      content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(22,184,198,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(124,58,237,.07) 1px,transparent 1px);
      background-size:44px 44px;mask-image:linear-gradient(180deg,black,transparent 78%);pointer-events:none
    }
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
    .hero h1{font-size:clamp(40px,5.4vw,70px);line-height:1.1;letter-spacing:-.055em;font-weight:900;margin:22px 0}
    .hero-copy{font-size:18px;color:var(--muted);max-width:650px}
    .stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
    .stat{
      padding:16px;border-radius:22px;background:rgba(255,255,255,.75);border:1px solid rgba(231,234,243,.92);
      box-shadow:0 10px 30px rgba(124,58,237,.07)
    }
    .stat strong{display:block;font-size:24px;line-height:1.1;color:var(--text)}
    .stat span{font-size:13px;color:var(--muted)}
    .hero-visual{
      position:relative;border-radius:var(--radius-xl);padding:14px;background:linear-gradient(135deg,rgba(22,184,198,.18),rgba(124,58,237,.15),rgba(181,232,83,.16));
      box-shadow:0 28px 80px rgba(22,184,198,.18)
    }
    .hero-image{height:530px;border-radius:30px;overflow:hidden;position:relative;border:1px solid rgba(255,255,255,.8)}
    .hero-image img{width:100%;height:100%;object-fit:cover}
    .hero-image:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,32,51,.05),rgba(23,32,51,.42))}
    .float-card{
      position:absolute;background:rgba(255,255,255,.92);border:1px solid rgba(231,234,243,.86);border-radius:22px;
      padding:16px;box-shadow:0 18px 50px rgba(23,32,51,.14);backdrop-filter:blur(12px)
    }
    .float-a{left:-18px;bottom:42px;width:210px}
    .float-b{right:-18px;top:54px;width:190px}
    .section-title{max-width:760px;margin-bottom:34px}
    .section-title h2{font-size:clamp(32px,4vw,46px);line-height:1.18;letter-spacing:-.035em;font-weight:900;margin:12px 0}
    .section-title p{font-size:17px;color:var(--muted)}
    .value-panel{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;padding:34px;border-radius:36px;background:var(--gradient-soft);
      border:1px solid rgba(22,184,198,.18);box-shadow:var(--shadow-violet)
    }
    .step{display:grid;grid-template-columns:58px 1fr;gap:16px;padding:20px;border-radius:24px;background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.8)}
    .step-num{width:46px;height:46px;border-radius:16px;background:var(--gradient);color:white;display:grid;place-items:center;font-weight:900}
    .feature-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
    .feature-side{display:grid;gap:24px}
    .feature-card{padding:28px}
    .feature-card ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .feature-card li{display:flex;gap:10px;color:var(--muted);font-size:15px}
    .feature-card li:before{content:"";width:8px;height:8px;border-radius:999px;background:var(--cyan);margin-top:10px;flex:none}
    .category-entry{display:grid;grid-template-columns:1fr .8fr;gap:24px;align-items:center;padding:34px;border-radius:36px;background:#111827;color:white;overflow:hidden;position:relative}
    .category-entry:before{content:"";position:absolute;inset:auto -15% -55% 30%;height:320px;background:radial-gradient(circle,rgba(22,184,198,.38),transparent 62%)}
    .category-entry p{color:#D0D5DD}
    .scenario-wrap{background:linear-gradient(180deg,#F5F7FF,#FFFFFF);border-radius:40px;padding:34px;border:1px solid var(--line)}
    .pill-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
    .pill{padding:9px 14px;border-radius:999px;background:white;border:1px solid var(--line);font-weight:750;color:#475467}
    .pill.active{background:var(--gradient);color:#fff;border-color:transparent}
    .scenario-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .preview-box{border-radius:24px;background:#F8FAFC;border:1px solid var(--line);padding:18px}
    .case-timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .case-card{padding:22px;border-radius:26px;background:white;border:1px solid var(--line);box-shadow:0 12px 32px rgba(22,184,198,.08)}
    .case-card:nth-child(even){margin-top:28px}
    .plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
    .plan{padding:28px;border-radius:30px;background:white;border:1px solid var(--line);box-shadow:0 12px 34px rgba(23,32,51,.06)}
    .plan.recommend{border:2px solid transparent;background:linear-gradient(white,white) padding-box,var(--gradient) border-box;transform:translateY(-10px)}
    .plan ul{padding:0;margin:20px 0;list-style:none;display:grid;gap:12px;color:var(--muted)}
    .plan li:before{content:"✓";color:#0F9BA7;font-weight:900;margin-right:8px}
    .faq-list{display:grid;gap:14px}
    .faq-item{border:1px solid var(--line);border-radius:24px;background:white;padding:20px 22px;box-shadow:0 10px 28px rgba(23,32,51,.04)}
    .faq-item.open{background:rgba(22,184,198,.06);border-color:rgba(22,184,198,.22)}
    .faq-q{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:17px;font-weight:850}
    .faq-a{margin-top:10px;color:var(--muted);font-size:15px}
    .cta-band{
      border-radius:40px;padding:42px;background:var(--gradient);color:white;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
      box-shadow:0 24px 70px rgba(124,58,237,.22);position:relative;overflow:hidden
    }
    .cta-band:after{content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:999px;background:rgba(255,255,255,.18)}
    .cta-band p{color:rgba(255,255,255,.86)}
    .footer{background:#111827;color:#E5E7EB;padding:64px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:32px}
    .footer a{color:#D0D5DD;transition:.2s ease}
    .footer a:hover{color:#5FE1EA}
    .footer-title{font-weight:850;color:white;margin-bottom:14px}
    .footer-links{display:grid;gap:10px;font-size:14px}
    .copyright{border-top:1px solid rgba(255,255,255,.10);margin-top:38px;padding-top:22px;color:#98A2B3;font-size:14px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
    @media (max-width:1024px){
      .search-pill{display:none}
      .hero-grid,.value-panel,.feature-grid,.category-entry,.scenario-grid,.cta-band{grid-template-columns:1fr}
      .hero-image{height:430px}
      .float-a{left:16px}.float-b{right:16px}
      .case-timeline,.plans{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 40px,1240px)}
      .section{padding:68px 0}.section-tight{padding:56px 0}
      .nav-menu,.nav-right .btn{display:none}
      .mobile-toggle{display:grid;place-items:center}
      .mobile-panel.is-open{display:grid;gap:14px}
      .mobile-panel .search-pill{display:flex;width:100%}
      .hero{padding:54px 0 36px}
      .hero h1{font-size:40px;letter-spacing:-.04em}
      .hero-copy{font-size:16px}
      .stats-row{grid-template-columns:1fr}
      .hero-image{height:340px;border-radius:26px}
      .float-card{position:relative;left:auto;right:auto;top:auto;bottom:auto;width:auto;margin-top:12px}
      .hero-visual{padding:10px}
      .case-timeline,.plans,.footer-grid{grid-template-columns:1fr}
      .case-card:nth-child(even),.plan.recommend{margin-top:0;transform:none}
      .category-entry{padding:26px}
      .cta-band{padding:30px}
    }
    @media (max-width:520px){
      .site-container{width:min(100% - 32px,1240px)}
      .btn{width:100%}
      .hero-actions{display:grid!important;grid-template-columns:1fr!important}
      .section-title h2{font-size:31px}
      .value-panel,.scenario-wrap{padding:22px;border-radius:28px}
      .step{grid-template-columns:1fr}
      .footer{padding-top:48px}
      .copyright{display:block}
    }

/* roulang page: category1 */
:root{
      --cloud-cyan:#16B8C6;
      --violet-pulse:#7C3AED;
      --warm-lime:#B5E853;
      --text:#172033;
      --muted:#667085;
      --soft:#F7FBFA;
      --soft-2:#F5F7FF;
      --border:#E5EEF2;
      --border-2:#E7EAF3;
      --white:#FFFFFF;
      --radius-xl:36px;
      --radius-lg:28px;
      --radius-md:20px;
      --shadow-cyan:0 18px 50px rgba(22,184,198,.12);
      --shadow-violet:0 12px 32px rgba(124,58,237,.10);
      --shadow-card:0 18px 46px rgba(23,32,51,.08);
      --gradient:linear-gradient(135deg,#16B8C6 0%,#7C3AED 65%,#B5E853 120%);
      --gradient-soft:linear-gradient(135deg,rgba(22,184,198,.12),rgba(124,58,237,.10),rgba(181,232,83,.12));
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 5%,rgba(22,184,198,.13),transparent 30%),
        radial-gradient(circle at 86% 8%,rgba(124,58,237,.12),transparent 28%),
        linear-gradient(180deg,#F7FBFA 0%,#FFFFFF 38%,#F5F7FF 100%);
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(22,184,198,.18);color:var(--text)}
    .site-container{width:min(1220px,calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--border-2);
    }
    .header-inner{
      min-height:70px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .nav-left,.nav-right{display:flex;align-items:center;gap:24px}
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      color:#111827;
      letter-spacing:-.02em;
      white-space:nowrap;
    }
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-size:14px;
      font-weight:900;
      background:var(--gradient);
      box-shadow:0 12px 24px rgba(22,184,198,.18);
      position:relative;
      overflow:hidden;
    }
    .logo-mark:after{
      content:"";
      position:absolute;
      width:28px;
      height:28px;
      border:2px solid rgba(255,255,255,.36);
      border-radius:999px;
      right:-8px;
      bottom:-7px;
    }
    .nav-menu{display:flex;align-items:center;gap:26px}
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      height:42px;
      font-size:15px;
      font-weight:650;
      color:#344054;
      transition:color .22s ease;
    }
    .nav-link:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:2px;
      height:2px;
      border-radius:999px;
      background:var(--gradient);
      transform:scaleX(0);
      transform-origin:left;
      transition:transform .22s ease;
    }
    .nav-link:hover,.nav-link.active{color:var(--cloud-cyan)}
    .nav-link:hover:after,.nav-link.active:after{transform:scaleX(1)}
    .search-pill{
      height:42px;
      width:230px;
      border:1px solid var(--border);
      background:#F8FAFC;
      border-radius:999px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 14px;
      color:#98A2B3;
      transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .search-pill input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      font-size:14px;
    }
    .search-pill:focus-within{
      background:#fff;
      border-color:rgba(22,184,198,.65);
      box-shadow:0 0 0 4px rgba(22,184,198,.15);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      padding:13px 20px;
      min-height:46px;
      font-weight:750;
      line-height:1;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease,color .22s ease;
      border:1px solid transparent;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:var(--gradient);
      box-shadow:0 16px 34px rgba(22,184,198,.20);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px rgba(124,58,237,.18)}
    .btn-secondary{
      background:#fff;
      color:#172033;
      border-color:var(--border);
      box-shadow:0 10px 24px rgba(23,32,51,.04);
    }
    .btn-secondary:hover{border-color:rgba(22,184,198,.55);background:rgba(22,184,198,.07);transform:translateY(-2px)}
    .btn:focus-visible,.nav-link:focus-visible,.logo:focus-visible,.footer a:focus-visible{
      outline:0;
      box-shadow:0 0 0 4px rgba(22,184,198,.22);
    }
    .mobile-toggle{display:none}
    .mobile-button{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--border);
      border-radius:16px;
      background:#fff;
      align-items:center;
      justify-content:center;
      color:#172033;
    }
    .mobile-panel{
      display:none;
      padding:0 0 18px;
    }
    .mobile-panel-inner{
      border:1px solid var(--border);
      border-radius:24px;
      background:#fff;
      box-shadow:var(--shadow-card);
      padding:16px;
    }
    .section{padding:92px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:750;
      color:#17656D;
      background:rgba(22,184,198,.10);
      border:1px solid rgba(22,184,198,.18);
    }
    .eyebrow-dot{
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--warm-lime);
      box-shadow:0 0 0 5px rgba(181,232,83,.20);
    }
    .page-hero{
      padding:58px 0 34px;
      position:relative;
      overflow:hidden;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(22,184,198,.08) 1px,transparent 1px),
        linear-gradient(90deg,rgba(124,58,237,.06) 1px,transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
    }
    .hero-card{
      position:relative;
      border:1px solid rgba(229,238,242,.9);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.78);
      box-shadow:var(--shadow-cyan);
      overflow:hidden;
    }
    .hero-card:after{
      content:"";
      position:absolute;
      width:420px;
      height:420px;
      right:-150px;
      top:-150px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(124,58,237,.14),transparent 65%);
      pointer-events:none;
    }
    .hero-title{
      font-size:clamp(36px,5vw,64px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:850;
      color:#111827;
    }
    .gradient-text{
      background:var(--gradient);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-copy{
      font-size:18px;
      color:var(--muted);
      max-width:760px;
    }
    .filter-bar{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:12px;
      border:1px solid var(--border);
      background:#fff;
      border-radius:999px;
      box-shadow:0 12px 30px rgba(23,32,51,.05);
    }
    .filter-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:8px 15px;
      border-radius:999px;
      color:#475467;
      font-size:14px;
      font-weight:700;
      background:#F8FAFC;
      border:1px solid transparent;
      transition:all .22s ease;
    }
    .filter-pill.active,.filter-pill:hover{
      color:#fff;
      background:var(--gradient);
      box-shadow:0 12px 22px rgba(22,184,198,.16);
      transform:translateY(-1px);
    }
    .hero-visual{
      position:relative;
      min-height:330px;
      border-radius:30px;
      overflow:hidden;
      box-shadow:var(--shadow-violet);
      border:1px solid rgba(255,255,255,.8);
    }
    .hero-visual img{
      width:100%;
      height:100%;
      min-height:330px;
      object-fit:cover;
    }
    .hero-visual:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg,rgba(22,184,198,.28),rgba(124,58,237,.18) 58%,rgba(181,232,83,.18));
    }
    .float-metric{
      position:absolute;
      z-index:2;
      left:20px;
      bottom:20px;
      right:20px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
    }
    .metric-mini{
      padding:13px;
      border-radius:18px;
      background:rgba(255,255,255,.9);
      backdrop-filter:blur(12px);
      border:1px solid rgba(255,255,255,.8);
      box-shadow:0 12px 26px rgba(23,32,51,.10);
    }
    .metric-mini strong{display:block;font-size:18px;line-height:1.1;color:#111827}
    .metric-mini span{font-size:12px;color:#667085}
    .info-card{
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:#fff;
      box-shadow:var(--shadow-card);
      overflow:hidden;
    }
    .info-card-soft{
      background:linear-gradient(135deg,#fff,rgba(22,184,198,.05),rgba(124,58,237,.04));
    }
    .section-title{
      font-size:clamp(30px,3.6vw,46px);
      line-height:1.18;
      letter-spacing:-.035em;
      font-weight:850;
      color:#111827;
    }
    .section-desc{
      color:var(--muted);
      font-size:17px;
      max-width:720px;
    }
    .stat-chip{
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px 16px;
      border-radius:20px;
      background:#F8FAFC;
      border:1px solid var(--border);
    }
    .stat-chip strong{font-size:22px;color:#111827;line-height:1}
    .stat-chip span{font-size:13px;color:var(--muted);line-height:1.45}
    .content-layout{
      display:grid;
      grid-template-columns:300px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .topic-side{
      position:sticky;
      top:94px;
      padding:20px;
      border-radius:28px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.92);
      box-shadow:var(--shadow-card);
    }
    .side-item{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
      padding:13px 14px;
      border-radius:16px;
      color:#475467;
      font-weight:700;
      transition:all .2s ease;
    }
    .side-item:hover,.side-item.active{
      color:#17656D;
      background:rgba(22,184,198,.09);
    }
    .count-badge{
      min-width:28px;
      height:24px;
      padding:0 8px;
      border-radius:999px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-size:12px;
      color:#5B21B6;
      background:rgba(124,58,237,.10);
    }
    .cards-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:22px;
    }
    .topic-card{
      position:relative;
      border:1px solid var(--border);
      border-radius:26px;
      background:#fff;
      padding:24px;
      min-height:245px;
      box-shadow:0 12px 28px rgba(23,32,51,.05);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
      overflow:hidden;
    }
    .topic-card:before{
      content:"";
      position:absolute;
      left:0;
      top:0;
      width:100%;
      height:4px;
      background:var(--gradient);
      opacity:.75;
    }
    .topic-card:hover{
      transform:translateY(-4px);
      border-color:rgba(22,184,198,.45);
      box-shadow:0 22px 52px rgba(22,184,198,.13);
      background:linear-gradient(180deg,#fff,rgba(22,184,198,.035));
    }
    .topic-card.featured{
      grid-column:span 2;
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:22px;
      align-items:center;
      min-height:290px;
      background:linear-gradient(135deg,#fff,rgba(22,184,198,.08),rgba(124,58,237,.07));
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      font-weight:800;
      color:#17656D;
      background:rgba(22,184,198,.10);
      border:1px solid rgba(22,184,198,.18);
    }
    .tag.purple{color:#5B21B6;background:rgba(124,58,237,.10);border-color:rgba(124,58,237,.16)}
    .keyword-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .keyword-row span{
      padding:5px 9px;
      border-radius:999px;
      background:#F8FAFC;
      border:1px solid #EEF2F7;
      color:#667085;
      font-size:12px;
      font-weight:650;
    }
    .arrow-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-top:20px;
      color:#0E8793;
      font-weight:800;
      transition:gap .2s ease,color .2s ease;
    }
    .topic-card:hover .arrow-link{gap:12px;color:#6D28D9}
    .card-image{
      position:relative;
      border-radius:24px;
      overflow:hidden;
      min-height:220px;
      border:1px solid rgba(255,255,255,.76);
      box-shadow:var(--shadow-violet);
    }
    .card-image img{width:100%;height:100%;min-height:220px;object-fit:cover}
    .card-image:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(22,184,198,.08),rgba(17,24,39,.42));
    }
    .recommend{
      position:relative;
      border-radius:36px;
      overflow:hidden;
      border:1px solid rgba(229,238,242,.9);
      background:#111827;
      color:#fff;
      box-shadow:0 24px 60px rgba(17,24,39,.18);
    }
    .recommend-bg{
      position:absolute;
      inset:0;
      opacity:.38;
      background:
        linear-gradient(135deg,rgba(22,184,198,.75),rgba(124,58,237,.68),rgba(181,232,83,.35)),
        url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
    }
    .recommend-content{position:relative;z-index:1}
    .step-list{display:grid;gap:14px}
    .step-item{
      display:grid;
      grid-template-columns:44px 1fr;
      gap:14px;
      align-items:start;
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.86);
      border:1px solid rgba(229,238,242,.88);
      transition:transform .22s ease,box-shadow .22s ease;
    }
    .step-item:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(22,184,198,.11)}
    .step-num{
      width:44px;
      height:44px;
      border-radius:16px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:900;
      background:var(--gradient);
    }
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .faq-card{
      padding:22px;
      border-radius:24px;
      border:1px solid var(--border);
      background:#fff;
      box-shadow:0 10px 26px rgba(23,32,51,.04);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .faq-card:hover{
      transform:translateY(-3px);
      border-color:rgba(22,184,198,.4);
      box-shadow:var(--shadow-cyan);
    }
    .faq-card h3{font-size:18px;font-weight:800;color:#111827;margin:0 0 8px}
    .faq-card p{margin:0;color:var(--muted);font-size:15px}
    .cta-band{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      padding:48px;
      color:#fff;
      background:var(--gradient);
      box-shadow:0 24px 60px rgba(124,58,237,.18);
    }
    .cta-band:before{
      content:"";
      position:absolute;
      width:340px;
      height:340px;
      right:-90px;
      top:-120px;
      border-radius:999px;
      background:rgba(255,255,255,.18);
    }
    .cta-band:after{
      content:"";
      position:absolute;
      left:34px;
      bottom:-90px;
      width:220px;
      height:220px;
      border-radius:999px;
      border:38px solid rgba(255,255,255,.12);
    }
    .cta-content{position:relative;z-index:1}
    .footer{
      background:#111827;
      color:#fff;
      padding:64px 0 28px;
      margin-top:90px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr .75fr .9fr 1fr;
      gap:34px;
      align-items:start;
    }
    .footer .logo{color:#fff}
    .footer-title{
      font-size:14px;
      font-weight:850;
      color:#F9FAFB;
      margin-bottom:16px;
    }
    .footer-links{
      display:grid;
      gap:10px;
      color:#CBD5E1;
      font-size:14px;
    }
    .footer-links a,.footer-links span{color:#CBD5E1;transition:color .2s ease}
    .footer-links a:hover{color:var(--warm-lime)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:26px;
      margin-top:38px;
      border-top:1px solid rgba(255,255,255,.12);
      color:#94A3B8;
      font-size:13px;
    }
    @media (max-width:1024px){
      .search-pill{display:none}
      .content-layout{grid-template-columns:1fr}
      .topic-side{position:relative;top:auto}
      .side-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:820px){
      .desktop-nav,.nav-right{display:none}
      .mobile-button{display:inline-flex}
      .mobile-toggle:checked ~ .mobile-panel{display:block}
      .mobile-panel .nav-menu{display:grid;gap:8px}
      .mobile-panel .nav-link{height:44px;padding:0 12px;border-radius:14px}
      .mobile-panel .nav-link.active,.mobile-panel .nav-link:hover{background:rgba(22,184,198,.08)}
      .hero-card{border-radius:28px}
      .filter-bar{border-radius:24px}
      .cards-grid{grid-template-columns:1fr}
      .topic-card.featured{grid-column:span 1;grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .float-metric{grid-template-columns:1fr;right:auto;width:190px}
      .copyright{flex-direction:column}
    }
    @media (max-width:560px){
      .site-container{width:min(100% - 32px,1220px)}
      .header-inner{min-height:66px}
      .logo span:last-child{font-size:15px}
      .logo-mark{width:38px;height:38px;border-radius:14px}
      .section{padding:66px 0}
      .page-hero{padding:36px 0 22px}
      .hero-title{font-size:36px}
      .hero-copy{font-size:16px}
      .hero-card .p-8{padding:22px}
      .hero-visual,.hero-visual img{min-height:290px}
      .filter-pill{flex:1}
      .side-list{grid-template-columns:1fr}
      .topic-card{padding:20px;min-height:auto}
      .cta-band{padding:30px 22px;border-radius:28px}
      .footer{padding-top:48px;margin-top:64px}
      .footer-grid{grid-template-columns:1fr}
      .btn{width:100%}
    }