/* roulang page: index */
:root{
      --bg:#090811;
      --bg-soft:#0D0A16;
      --panel:#14111F;
      --panel-2:#1B1628;
      --text:#F8FAFC;
      --muted:#A6A0B8;
      --muted-2:#CBD5E1;
      --violet:#7C3AED;
      --violet-2:#8B5CF6;
      --cyan:#22D3EE;
      --mint:#2DD4BF;
      --orange:#F97316;
      --orange-soft:#FDBA74;
      --border:rgba(255,255,255,.10);
      --border-cyan:rgba(34,211,238,.28);
      --shadow-cyan:0 0 28px rgba(34,211,238,.20);
      --shadow-violet:0 0 34px rgba(124,58,237,.26);
      --radius-xl:1.5rem;
      --radius-2xl:2rem;
      --container:80rem;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 10%, rgba(124,58,237,.24), transparent 34rem),
        radial-gradient(circle at 86% 8%, rgba(34,211,238,.18), transparent 30rem),
        linear-gradient(180deg,var(--bg),var(--bg-soft) 45%,#07060D);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.22;
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(to bottom,black,transparent 78%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(34,211,238,.28);color:#fff}
    .site-container{width:min(100% - 2rem,var(--container));margin-inline:auto}
    .section-pad{padding:6rem 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:.5rem;
      padding:.42rem .8rem;border:1px solid var(--border-cyan);
      border-radius:999px;color:#BFF8FF;background:rgba(34,211,238,.08);
      font-size:.86rem;font-weight:700;letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";width:.48rem;height:.48rem;border-radius:999px;
      background:var(--cyan);box-shadow:0 0 18px rgba(34,211,238,.9);
    }
    .brand-gradient{
      background:linear-gradient(90deg,#fff 0%,#BFF8FF 42%,#FDBA74 100%);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .nav-shell{
      position:sticky;top:0;z-index:50;background:rgba(9,8,17,.88);
      backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav-shell::after{
      content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
      background:linear-gradient(90deg,transparent,var(--violet),var(--cyan),var(--orange),transparent);
      opacity:.85;
    }
    .nav-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:1rem}
    .logo{display:inline-flex;align-items:center;gap:.85rem;min-width:max-content}
    .logo-mark{
      width:46px;height:46px;border-radius:1rem;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(124,58,237,.95),rgba(34,211,238,.85));
      box-shadow:var(--shadow-cyan);
      color:#fff;font-weight:900;font-size:1.25rem;
      transform:rotate(-6deg);
    }
    .logo-text strong{display:block;font-size:1.08rem;line-height:1.1}
    .logo-text span{display:block;color:var(--muted);font-size:.78rem;margin-top:.16rem}
    .desktop-nav{display:flex;align-items:center;gap:.25rem}
    .nav-link{
      position:relative;padding:.62rem .9rem;border-radius:999px;
      color:#D8D3EA;font-size:.94rem;font-weight:700;transition:.25s ease;
    }
    .nav-link:hover,.nav-link:focus-visible{color:#fff;background:rgba(255,255,255,.07);outline:none}
    .nav-link.active{color:#BFF8FF;background:rgba(34,211,238,.10);box-shadow:inset 0 0 0 1px rgba(34,211,238,.18)}
    .nav-link.active::after{
      content:"";position:absolute;left:50%;transform:translateX(-50%);
      bottom:.18rem;width:34px;height:2px;border-radius:99px;
      background:var(--cyan);box-shadow:0 0 12px rgba(34,211,238,.9);
    }
    .nav-actions{display:flex;align-items:center;gap:.75rem}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
      min-height:46px;padding:.78rem 1.12rem;border-radius:999px;
      font-weight:800;line-height:1;border:1px solid transparent;
      transition:transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
    }
    .btn-primary{
      color:#fff;background:linear-gradient(135deg,var(--violet),var(--cyan));
      box-shadow:0 12px 34px rgba(34,211,238,.18),0 10px 26px rgba(124,58,237,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 44px rgba(34,211,238,.28),0 14px 34px rgba(124,58,237,.30)}
    .btn-secondary{
      color:#E9FEFF;border-color:rgba(34,211,238,.28);
      background:rgba(20,17,31,.78);
    }
    .btn-secondary:hover{transform:translateY(-2px);background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.55)}
    .btn-orange{
      color:#fff;background:linear-gradient(135deg,var(--orange),var(--violet));
      box-shadow:0 14px 36px rgba(249,115,22,.20);
    }
    .btn:focus-visible,.faq-item summary:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{
      outline:3px solid rgba(34,211,238,.55);outline-offset:3px;
    }
    .mobile-toggle{
      display:none;width:46px;height:46px;border-radius:1rem;border:1px solid var(--border);
      background:rgba(255,255,255,.06);color:#fff;align-items:center;justify-content:center;
    }
    .mobile-menu{
      display:none;padding:0 0 1rem;
    }
    .mobile-menu.open{display:block}
    .mobile-panel{
      border:1px solid var(--border);border-radius:1.2rem;background:rgba(20,17,31,.96);
      padding:.65rem;box-shadow:var(--shadow-violet);
    }
    .mobile-panel a{display:flex;min-height:46px;align-items:center;border-radius:.9rem;padding:.65rem .85rem;color:#EDE9FE;font-weight:700}
    .mobile-panel a.active,.mobile-panel a:hover{background:rgba(34,211,238,.10);color:#BFF8FF}
    .hero{
      position:relative;padding:5.7rem 0 4.5rem;overflow:hidden;
    }
    .hero::before{
      content:"";position:absolute;inset:0;z-index:-1;
      background:
        linear-gradient(90deg,rgba(9,8,17,.78),rgba(9,8,17,.38)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.64;
    }
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:3rem;align-items:center}
    h1{font-size:clamp(2.35rem,5vw,4.1rem);line-height:1.08;font-weight:900;letter-spacing:-.05em;margin:1.25rem 0}
    h2{font-size:clamp(1.75rem,3.6vw,2.65rem);line-height:1.18;font-weight:900;letter-spacing:-.035em}
    h3{font-size:1.22rem;line-height:1.35;font-weight:850}
    .lead{font-size:1.12rem;color:#D5CFE8;max-width:44rem}
    .hero-cta{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:2rem}
    .badge-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}
    .metric-badge{
      border:1px solid rgba(255,255,255,.12);background:rgba(9,8,17,.66);
      border-radius:1.15rem;padding:.78rem .9rem;min-width:9.5rem;
      box-shadow:0 14px 40px rgba(0,0,0,.20);
    }
    .metric-badge strong{display:block;color:#fff;font-size:1rem}
    .metric-badge span{display:block;color:var(--muted);font-size:.82rem;margin-top:.14rem}
    .console-card{
      position:relative;border:1px solid rgba(34,211,238,.25);
      border-radius:2rem;padding:1rem;background:linear-gradient(180deg,rgba(27,22,40,.88),rgba(9,8,17,.88));
      box-shadow:var(--shadow-cyan),0 30px 90px rgba(0,0,0,.45);
      overflow:hidden;
    }
    .console-card::before{
      content:"";position:absolute;inset:-40% -20% auto auto;width:18rem;height:18rem;
      background:radial-gradient(circle,rgba(34,211,238,.24),transparent 62%);
      pointer-events:none;
    }
    .console-top{display:flex;align-items:center;justify-content:space-between;padding:.45rem .5rem 1rem}
    .dots{display:flex;gap:.45rem}
    .dots i{width:.66rem;height:.66rem;border-radius:999px;background:#FDBA74;display:block}
    .dots i:nth-child(2){background:#22D3EE}.dots i:nth-child(3){background:#8B5CF6}
    .console-search{height:48px;border-radius:1rem;border:1px solid var(--border);background:rgba(255,255,255,.06);display:flex;align-items:center;padding:0 1rem;color:#C7F8FF}
    .console-body{display:grid;gap:1rem;margin-top:1rem}
    .entry-card{
      display:flex;gap:1rem;align-items:flex-start;border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.055);border-radius:1.35rem;padding:1rem;
    }
    .entry-icon{
      width:46px;height:46px;flex:0 0 46px;border-radius:1rem;
      display:grid;place-items:center;background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(124,58,237,.24));
      color:#BFF8FF;font-weight:900;border:1px solid rgba(34,211,238,.18);
    }
    .visual-img{
      border-radius:1.4rem;min-height:220px;object-fit:cover;border:1px solid rgba(255,255,255,.10);
      filter:saturate(1.05) contrast(1.03);
    }
    .floating-note{
      position:absolute;right:1.2rem;bottom:1.2rem;max-width:210px;
      border:1px solid rgba(253,186,116,.28);background:rgba(249,115,22,.12);
      border-radius:1rem;padding:.8rem;color:#FFE7CA;font-size:.88rem;backdrop-filter:blur(10px);
    }
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:1.5rem;margin-bottom:2rem}
    .section-head p{color:var(--muted-2);max-width:42rem;margin-top:.8rem}
    .bento{display:grid;grid-template-columns:1.15fr .85fr;gap:1rem}
    .card{
      border:1px solid var(--border);background:linear-gradient(180deg,rgba(27,22,40,.78),rgba(20,17,31,.76));
      border-radius:var(--radius-2xl);padding:1.45rem;box-shadow:0 22px 60px rgba(0,0,0,.22);
      transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;
    }
    .card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.34);background:linear-gradient(180deg,rgba(34,211,238,.07),rgba(20,17,31,.82));box-shadow:var(--shadow-cyan)}
    .card-main{min-height:430px;display:flex;flex-direction:column;justify-content:space-between;background:
      linear-gradient(180deg,rgba(27,22,40,.70),rgba(9,8,17,.92)),
      url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    }
    .small-stack{display:grid;gap:1rem}
    .tag{
      display:inline-flex;align-items:center;width:max-content;max-width:100%;
      padding:.32rem .68rem;border-radius:999px;border:1px solid rgba(34,211,238,.24);
      background:rgba(34,211,238,.09);color:#BFF8FF;font-size:.78rem;font-weight:800;
    }
    .orange-tag{border-color:rgba(253,186,116,.32);background:rgba(249,115,22,.12);color:#FFE0BF}
    .card p,.step-card p,.plan-card p,.case-card p,.feature-card p{color:var(--muted-2);margin-top:.65rem}
    .feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:1rem}
    .feature-card{grid-column:span 4;min-height:230px;position:relative;overflow:hidden}
    .feature-card.wide{grid-column:span 8}
    .feature-card::after{
      content:"";position:absolute;right:-3rem;bottom:-4rem;width:12rem;height:12rem;border-radius:999px;
      background:radial-gradient(circle,rgba(34,211,238,.14),transparent 68%);
    }
    .icon-chip{
      width:52px;height:52px;border-radius:1.1rem;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(124,58,237,.32),rgba(34,211,238,.16));
      border:1px solid rgba(255,255,255,.10);color:#fff;font-size:1.3rem;margin-bottom:1rem;
    }
    .flow-wrap{position:relative}
    .flow-line{
      position:absolute;left:2rem;right:2rem;top:44px;height:2px;
      background:linear-gradient(90deg,var(--violet),var(--cyan),var(--orange));opacity:.75;
    }
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;position:relative}
    .step-card{background:rgba(20,17,31,.82);border:1px solid var(--border);border-radius:1.6rem;padding:1.2rem;min-height:250px}
    .step-no{
      width:58px;height:58px;border-radius:1.2rem;display:grid;place-items:center;
      background:#0F0C19;border:1px solid rgba(34,211,238,.24);
      color:#BFF8FF;font-weight:900;font-size:1.05rem;box-shadow:var(--shadow-cyan);margin-bottom:1rem;
    }
    .case-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:1rem;align-items:stretch}
    .case-image{
      border-radius:2rem;overflow:hidden;border:1px solid var(--border);min-height:100%;
      background:#111;
    }
    .case-image img{width:100%;height:100%;object-fit:cover;min-height:420px}
    .case-list{display:grid;gap:1rem}
    .case-card{border-left:3px solid rgba(34,211,238,.75)}
    .quote-mark{font-size:2.4rem;line-height:1;color:#22D3EE;opacity:.8}
    .plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
    .plan-card{position:relative;padding:1.5rem}
    .plan-card.recommend{
      border-color:rgba(253,186,116,.42);
      background:linear-gradient(180deg,rgba(249,115,22,.12),rgba(27,22,40,.84));
      transform:translateY(-.45rem);
    }
    .plan-card ul{display:grid;gap:.65rem;margin-top:1.2rem;color:#DCD6EE}
    .plan-card li{display:flex;gap:.55rem;align-items:flex-start}
    .plan-card li::before{content:"";width:.45rem;height:.45rem;border-radius:999px;background:var(--cyan);margin-top:.75rem;flex:0 0 .45rem}
    .price-note{font-size:1.8rem;font-weight:900;margin-top:1rem}
    .faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:2rem;align-items:start}
    .faq-list{display:grid;gap:.9rem}
    .faq-item{
      border:1px solid var(--border);border-radius:1.25rem;background:rgba(20,17,31,.82);
      overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
    }
    .faq-item:hover,.faq-item[open]{border-color:rgba(34,211,238,.35);box-shadow:var(--shadow-cyan)}
    .faq-item summary{
      list-style:none;display:flex;justify-content:space-between;gap:1rem;
      padding:1rem 1.15rem;font-weight:850;cursor:pointer;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{content:"＋";color:#22D3EE;font-weight:900}
    .faq-item[open] summary::after{content:"－"}
    .faq-item p{padding:0 1.15rem 1.1rem;color:var(--muted-2)}
    .cta-panel{
      position:relative;overflow:hidden;border-radius:2.2rem;padding:2.2rem;
      border:1px solid rgba(255,255,255,.12);
      background:
        linear-gradient(135deg,rgba(124,58,237,.86),rgba(34,211,238,.42) 58%,rgba(249,115,22,.62)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:0 26px 80px rgba(34,211,238,.18);
    }
    .cta-panel::before{content:"";position:absolute;inset:0;background:rgba(9,8,17,.36)}
    .cta-panel>*{position:relative}
    .contact-card{
      border:1px solid var(--border);border-radius:2rem;background:rgba(20,17,31,.78);
      padding:1.25rem;
    }
    .field{display:grid;gap:.35rem;margin-bottom:.8rem}
    .field label{color:#EDE9FE;font-size:.86rem;font-weight:800}
    .field input,.field textarea{
      width:100%;border:1px solid rgba(255,255,255,.12);border-radius:1rem;
      background:#100D1A;color:#fff;padding:.85rem 1rem;min-height:46px;
    }
    .field textarea{min-height:100px;resize:vertical}
    .field input:focus,.field textarea:focus{border-color:rgba(34,211,238,.65);box-shadow:0 0 0 4px rgba(34,211,238,.10);outline:none}
    .footer{
      background:#06050B;border-top:1px solid rgba(255,255,255,.08);position:relative;padding:3.5rem 0 2rem;
    }
    .footer::before{
      content:"";position:absolute;top:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--violet),var(--cyan),var(--orange),transparent);
    }
    .footer-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr;gap:2rem}
    .footer a{color:#CFC9E6;transition:.2s ease}
    .footer a:hover{color:#BFF8FF}
    .footer-links{display:grid;gap:.5rem}
    .copyright{margin-top:2.2rem;padding-top:1.3rem;border-top:1px solid rgba(255,255,255,.08);color:#918AA8;font-size:.9rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
    @media (max-width:1024px){
      .desktop-nav,.nav-actions .hide-md{display:none}
      .mobile-toggle{display:flex}
      .hero-grid,.bento,.case-grid,.faq-layout{grid-template-columns:1fr}
      .feature-card,.feature-card.wide{grid-column:span 6}
      .steps{grid-template-columns:repeat(2,1fr)}
      .flow-line{display:none}
      .plan-grid{grid-template-columns:1fr}
      .plan-card.recommend{transform:none}
      .footer-grid{grid-template-columns:1fr 1fr}
      .section-pad{padding:4.5rem 0}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 1.25rem,var(--container))}
      .nav-inner{min-height:68px}
      .logo-mark{width:42px;height:42px}
      .logo-text span{display:none}
      .hero{padding:4rem 0 3rem}
      .hero-grid{gap:2rem}
      .hero-cta .btn{width:100%}
      .metric-badge{flex:1 1 100%}
      .section-head{display:block}
      .feature-grid,.steps,.footer-grid{grid-template-columns:1fr}
      .feature-card,.feature-card.wide{grid-column:span 1}
      .case-image img{min-height:260px}
      .cta-panel{padding:1.4rem}
    }
    @media (max-width:520px){
      h1{font-size:2.25rem}
      .console-card{padding:.75rem;border-radius:1.5rem}
      .floating-note{position:static;max-width:none;margin-top:1rem}
      .entry-card{align-items:flex-start}
      .section-pad{padding:3.5rem 0}
      .card{border-radius:1.45rem;padding:1.1rem}
      .btn{width:100%;padding:.86rem 1rem}
      .copyright{display:block}
      .copyright span{display:block;margin-top:.35rem}
    }

/* roulang page: category1 */
:root{
      --bg:#090811;
      --bg-soft:#0D0A16;
      --panel:#14111F;
      --panel-2:#1B1628;
      --text:#F8FAFC;
      --muted:#A6A0B8;
      --muted-2:#CBD5E1;
      --violet:#7C3AED;
      --violet-2:#8B5CF6;
      --cyan:#22D3EE;
      --teal:#2DD4BF;
      --orange:#F97316;
      --orange-soft:#FDBA74;
      --border:rgba(255,255,255,.10);
      --border-cyan:rgba(34,211,238,.25);
      --shadow-cyan:0 0 28px rgba(34,211,238,.20);
      --shadow-violet:0 28px 80px rgba(124,58,237,.24);
      --radius-lg:24px;
      --radius-xl:32px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,sans-serif;
      line-height:1.75;
      background:
        radial-gradient(circle at 14% 8%, rgba(124,58,237,.28), transparent 34%),
        radial-gradient(circle at 86% 18%, rgba(34,211,238,.18), transparent 30%),
        radial-gradient(circle at 55% 92%, rgba(249,115,22,.12), transparent 26%),
        linear-gradient(180deg,#090811 0%,#0D0A16 42%,#090811 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.18;
      background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom, black, transparent 78%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .nav-shell{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(9,8,17,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav-shell:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:-1px;
      height:1px;
      background:linear-gradient(90deg, transparent, var(--violet), var(--cyan), var(--orange), transparent);
      opacity:.9;
    }
    .nav-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .logo-mark{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      font-weight:900;
      color:white;
      background:
        linear-gradient(135deg, rgba(124,58,237,1), rgba(34,211,238,.92)),
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.6), transparent 35%);
      box-shadow:0 0 26px rgba(34,211,238,.25);
      transform:rotate(-6deg);
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.15}
    .logo-text strong{font-size:18px;letter-spacing:.02em}
    .logo-text span{font-size:12px;color:var(--muted)}
    .desktop-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:999px;
      background:rgba(255,255,255,.035);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:0 18px;
      border-radius:999px;
      color:#D8D3E8;
      font-size:14px;
      font-weight:650;
      transition:color .22s ease, background .22s ease, box-shadow .22s ease, transform .22s ease;
    }
    .nav-link:hover{
      color:white;
      background:rgba(34,211,238,.08);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:#BFFBFF;
      background:linear-gradient(135deg, rgba(34,211,238,.16), rgba(124,58,237,.16));
      box-shadow:inset 0 0 0 1px rgba(34,211,238,.25), 0 0 20px rgba(34,211,238,.16);
    }
    .nav-link.active:after{
      content:"";
      position:absolute;
      left:22px;
      right:22px;
      bottom:4px;
      height:2px;
      border-radius:999px;
      background:var(--cyan);
      box-shadow:0 0 12px var(--cyan);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:14px;
      font-weight:750;
      line-height:1;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:white;
      background:linear-gradient(135deg, var(--violet), var(--cyan));
      box-shadow:0 12px 36px rgba(34,211,238,.18), 0 12px 42px rgba(124,58,237,.18);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px rgba(34,211,238,.28)}
    .btn-secondary{
      color:#E9FEFF;
      background:rgba(20,17,31,.66);
      border-color:rgba(34,211,238,.30);
    }
    .btn-secondary:hover{background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.55);transform:translateY(-1px)}
    .btn-orange{
      color:#140B07;
      background:linear-gradient(135deg, #FDBA74, #F97316);
      box-shadow:0 16px 40px rgba(249,115,22,.22);
    }
    .btn-orange:hover{transform:translateY(-2px);box-shadow:0 20px 52px rgba(249,115,22,.30)}
    .btn:focus-visible,.nav-link:focus-visible,.mobile-panel a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(34,211,238,.72);
      outline-offset:3px;
    }
    .mobile-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:16px;
      border:1px solid rgba(34,211,238,.25);
      color:white;
      background:rgba(255,255,255,.06);
    }
    .mobile-menu{display:none;padding-bottom:16px}
    .mobile-panel{
      border:1px solid rgba(255,255,255,.10);
      border-radius:22px;
      background:rgba(20,17,31,.96);
      padding:10px;
      box-shadow:var(--shadow-cyan);
    }
    .mobile-panel a{
      display:flex;
      min-height:46px;
      align-items:center;
      padding:0 14px;
      border-radius:16px;
      color:#DFD8F4;
      font-weight:700;
    }
    .mobile-panel a.active,.mobile-panel a:hover{background:rgba(34,211,238,.10);color:#BFFBFF}
    .inner-hero{
      position:relative;
      padding:76px 0 44px;
      overflow:hidden;
    }
    .hero-card{
      position:relative;
      border:1px solid rgba(255,255,255,.10);
      border-radius:36px;
      padding:34px;
      background:
        linear-gradient(120deg, rgba(20,17,31,.92), rgba(27,22,40,.78)),
        url('/assets/images/backpic/back-2.webp') center/cover;
      box-shadow:var(--shadow-violet);
      overflow:hidden;
    }
    .hero-card:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 72% 22%, rgba(34,211,238,.28), transparent 28%),
        linear-gradient(90deg, rgba(9,8,17,.92), rgba(9,8,17,.58), rgba(9,8,17,.88));
      pointer-events:none;
    }
    .hero-content{position:relative;z-index:1}
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      color:#C9C2DF;
      font-size:14px;
      margin-bottom:18px;
    }
    .breadcrumb a{color:#BFFBFF}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#BFFBFF;
      background:rgba(34,211,238,.10);
      border:1px solid rgba(34,211,238,.24);
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 16px var(--cyan);
    }
    h1{
      max-width:780px;
      margin:0;
      font-size:clamp(34px,5vw,58px);
      line-height:1.1;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .gradient-text{
      background:linear-gradient(135deg, #fff, #BFFBFF 46%, #FDBA74);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      max-width:730px;
      margin:18px 0 0;
      color:#D9D3E8;
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin-top:28px;
      max-width:760px;
    }
    .metric{
      border:1px solid rgba(255,255,255,.10);
      border-radius:20px;
      padding:14px 16px;
      background:rgba(9,8,17,.46);
    }
    .metric strong{display:block;font-size:20px;color:white;line-height:1.25}
    .metric span{display:block;font-size:13px;color:var(--muted-2);margin-top:4px}
    .section{padding:72px 0}
    .section-tight{padding:42px 0 72px}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      color:#BFFBFF;
      font-weight:850;
      font-size:14px;
      letter-spacing:.04em;
      margin-bottom:8px;
    }
    h2{
      margin:0;
      font-size:clamp(28px,3.6vw,40px);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.03em;
    }
    h3{
      margin:0;
      font-size:20px;
      line-height:1.35;
      font-weight:850;
    }
    .section-desc{
      max-width:560px;
      margin:0;
      color:var(--muted-2);
      font-size:16px;
    }
    .guide-layout{
      display:grid;
      grid-template-columns:280px minmax(0,1fr);
      gap:22px;
      align-items:start;
    }
    .sidebar{
      position:sticky;
      top:98px;
      border:1px solid rgba(255,255,255,.10);
      border-radius:28px;
      padding:18px;
      background:linear-gradient(180deg, rgba(27,22,40,.92), rgba(20,17,31,.78));
      box-shadow:0 18px 56px rgba(0,0,0,.22);
    }
    .sidebar-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:8px 8px 14px;
      border-bottom:1px solid rgba(255,255,255,.08);
      margin-bottom:12px;
    }
    .sidebar-title span{
      font-size:13px;
      color:var(--muted);
      font-weight:700;
    }
    .filter-list{display:grid;gap:8px}
    .filter-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      min-height:46px;
      padding:0 12px;
      border-radius:16px;
      color:#E7E1F6;
      border:1px solid transparent;
      background:rgba(255,255,255,.035);
      transition:background .22s ease,border-color .22s ease,transform .22s ease,color .22s ease;
      font-weight:750;
    }
    .filter-link small{
      color:#9FEAF2;
      font-size:12px;
      font-weight:850;
    }
    .filter-link:hover,.filter-link.active{
      color:#BFFBFF;
      border-color:rgba(34,211,238,.34);
      background:rgba(34,211,238,.10);
      transform:translateX(2px);
    }
    .sidebar-note{
      margin-top:16px;
      padding:14px;
      border-radius:18px;
      color:#D9D3E8;
      background:rgba(249,115,22,.10);
      border:1px solid rgba(249,115,22,.24);
      font-size:14px;
    }
    .content-stack{display:grid;gap:18px}
    .guide-card{
      position:relative;
      display:grid;
      grid-template-columns:156px minmax(0,1fr);
      gap:18px;
      padding:18px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.10);
      background:linear-gradient(135deg, rgba(20,17,31,.92), rgba(27,22,40,.70));
      overflow:hidden;
      transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background .24s ease;
    }
    .guide-card:hover{
      transform:translateY(-3px);
      border-color:rgba(34,211,238,.38);
      box-shadow:var(--shadow-cyan);
      background:linear-gradient(135deg, rgba(27,22,40,.96), rgba(20,17,31,.86));
    }
    .guide-card:before{
      content:"";
      position:absolute;
      left:0;
      top:22px;
      bottom:22px;
      width:3px;
      border-radius:999px;
      background:linear-gradient(180deg, var(--cyan), var(--violet), var(--orange));
      opacity:.9;
    }
    .guide-thumb{
      position:relative;
      min-height:144px;
      border-radius:22px;
      overflow:hidden;
      background:#120F1D;
    }
    .guide-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(1.06) contrast(1.05);
    }
    .guide-thumb:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent, rgba(9,8,17,.50));
    }
    .guide-body{min-width:0;padding:4px 4px 2px}
    .card-top{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      margin-bottom:10px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      min-height:26px;
      padding:0 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:850;
      color:#BFFBFF;
      border:1px solid rgba(34,211,238,.26);
      background:rgba(34,211,238,.10);
    }
    .badge.orange{
      color:#FFE7D1;
      border-color:rgba(249,115,22,.30);
      background:rgba(249,115,22,.12);
    }
    .guide-body p{
      margin:9px 0 0;
      color:#CDC6DF;
      line-height:1.78;
    }
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      justify-content:space-between;
      margin-top:16px;
      padding-top:14px;
      border-top:1px solid rgba(255,255,255,.08);
      color:#AFA7C2;
      font-size:13px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#BFFBFF;
      font-weight:850;
      transition:gap .22s ease,color .22s ease;
    }
    .text-link:hover{gap:12px;color:white}
    .alert-cta{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      padding:30px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 92% 18%, rgba(253,186,116,.28), transparent 28%),
        linear-gradient(135deg, rgba(124,58,237,.78), rgba(34,211,238,.30) 52%, rgba(20,17,31,.96));
      box-shadow:var(--shadow-violet);
    }
    .alert-cta:before{
      content:"";
      position:absolute;
      inset:auto -12% -44% 42%;
      height:220px;
      border-radius:999px;
      background:rgba(34,211,238,.20);
      filter:blur(42px);
    }
    .alert-inner{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:22px;
      align-items:center;
    }
    .check-list{
      display:grid;
      gap:10px;
      margin:16px 0 0;
      padding:0;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:10px;
      color:#EDE9FE;
      align-items:flex-start;
    }
    .check-list li:before{
      content:"✓";
      flex:0 0 22px;
      width:22px;
      height:22px;
      display:grid;
      place-items:center;
      border-radius:999px;
      color:#061014;
      background:var(--cyan);
      font-size:13px;
      font-weight:900;
      margin-top:3px;
    }
    .mini-rank{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .rank-item{
      display:grid;
      grid-template-columns:44px minmax(0,1fr) auto;
      gap:14px;
      align-items:center;
      padding:14px;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.035);
    }
    .rank-no{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      font-weight:900;
      color:#BFFBFF;
      background:rgba(34,211,238,.10);
      border:1px solid rgba(34,211,238,.24);
    }
    .rank-item p{margin:2px 0 0;color:#BDB5CF;font-size:14px}
    .rank-pill{
      color:#FFE7D1;
      background:rgba(249,115,22,.12);
      border:1px solid rgba(249,115,22,.24);
      border-radius:999px;
      padding:5px 9px;
      font-size:12px;
      font-weight:850;
      white-space:nowrap;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:28px;
      align-items:start;
    }
    details{
      border:1px solid rgba(255,255,255,.10);
      border-radius:22px;
      background:rgba(20,17,31,.78);
      overflow:hidden;
      transition:border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    details+details{margin-top:12px}
    details[open]{
      border-color:rgba(34,211,238,.38);
      box-shadow:0 0 24px rgba(34,211,238,.12);
      background:rgba(27,22,40,.88);
    }
    summary{
      list-style:none;
      min-height:62px;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      cursor:pointer;
      font-weight:850;
      color:#F8FAFC;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      flex:0 0 28px;
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(34,211,238,.10);
      color:#BFFBFF;
      border:1px solid rgba(34,211,238,.22);
      font-weight:900;
    }
    details[open] summary:after{content:"−"}
    .faq-answer{
      padding:0 20px 18px;
      color:#C9C2D8;
      line-height:1.8;
    }
    .contact-card{
      border:1px solid rgba(255,255,255,.10);
      border-radius:30px;
      padding:24px;
      background:linear-gradient(145deg, rgba(27,22,40,.92), rgba(20,17,31,.72));
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;color:#D8D2E8;font-weight:750}
    .field input,.field textarea{
      width:100%;
      border:1px solid rgba(255,255,255,.10);
      border-radius:16px;
      background:#100D1A;
      color:white;
      padding:12px 14px;
      min-height:46px;
      outline:none;
      transition:border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .field textarea{min-height:112px;resize:vertical}
    .field input:focus,.field textarea:focus{
      border-color:rgba(34,211,238,.58);
      box-shadow:0 0 0 4px rgba(34,211,238,.10);
      background:#120F1D;
    }
    .final-cta{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      padding:38px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 16% 20%, rgba(34,211,238,.22), transparent 30%),
        radial-gradient(circle at 82% 30%, rgba(249,115,22,.18), transparent 28%),
        linear-gradient(135deg, rgba(124,58,237,.34), rgba(20,17,31,.96));
      box-shadow:var(--shadow-violet);
    }
    .final-cta .inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      position:relative;
    }
    .footer{
      margin-top:40px;
      padding:54px 0 26px;
      background:#07060D;
      border-top:1px solid rgba(255,255,255,.08);
      position:relative;
    }
    .footer:before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:0;
      height:1px;
      background:linear-gradient(90deg, transparent, var(--violet), var(--cyan), var(--orange), transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.6fr) .7fr .7fr;
      gap:36px;
    }
    .footer h3{color:white;font-weight:850}
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#AFA7C2;
      transition:color .2s ease, transform .2s ease;
    }
    .footer-links a:hover{color:#BFFBFF;transform:translateX(3px)}
    .copyright{
      margin-top:36px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:#8E879D;
      font-size:13px;
    }
    .hide-md{display:inline-flex}
    @media (max-width:1024px){
      .desktop-nav{display:none}
      .mobile-toggle{display:grid;place-items:center}
      .hide-md{display:none}
      .mobile-menu.open{display:block}
      .guide-layout{grid-template-columns:1fr}
      .sidebar{
        position:static;
        padding:14px;
      }
      .filter-list{
        grid-template-columns:repeat(5, minmax(150px,1fr));
        overflow-x:auto;
        padding-bottom:4px;
      }
      .filter-link{white-space:nowrap}
      .faq-wrap{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px, var(--container))}
      .nav-inner{min-height:68px}
      .logo-mark{width:40px;height:40px;border-radius:14px}
      .logo-text strong{font-size:16px}
      .logo-text span{font-size:11px}
      .inner-hero{padding:48px 0 30px}
      .hero-card{padding:24px;border-radius:28px}
      .hero-lead{font-size:16px}
      .hero-metrics{grid-template-columns:1fr}
      .section{padding:52px 0}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .guide-card{grid-template-columns:1fr}
      .guide-thumb{min-height:190px}
      .alert-inner{grid-template-columns:1fr}
      .rank-item{grid-template-columns:40px minmax(0,1fr)}
      .rank-pill{grid-column:2}
      .form-grid{grid-template-columns:1fr}
      .final-cta{padding:26px}
      .final-cta .inner{display:block}
      .final-cta .btn{margin-top:18px;width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width:520px){
      .nav-actions .btn-primary{display:none}
      .hero-actions .btn{width:100%}
      .filter-list{grid-template-columns:repeat(5, 138px)}
      .guide-thumb{min-height:168px}
      .card-meta{display:grid}
      summary{padding:16px}
      .faq-answer{padding:0 16px 16px}
    }