/* roulang page: index */
:root{
      --bg:#050B18;
      --bg-2:#07111F;
      --panel:rgba(13,25,48,.62);
      --panel-strong:rgba(12,28,58,.82);
      --border:rgba(130,170,255,.18);
      --border-strong:rgba(40,224,212,.38);
      --text:#F5F8FF;
      --muted:#A9B7D0;
      --weak:#6F7F99;
      --blue:#1E7BFF;
      --cyan:#28E0D4;
      --violet:#7C5CFF;
      --ice:#9FD8FF;
      --radius-xl:32px;
      --radius-lg:24px;
      --radius-md:18px;
      --shadow:0 24px 80px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.05);
      --glow:0 0 32px rgba(30,123,255,.28),0 0 54px rgba(40,224,212,.12);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 5%,rgba(30,123,255,.24),transparent 34%),
        radial-gradient(circle at 85% 22%,rgba(124,92,255,.2),transparent 34%),
        radial-gradient(circle at 50% 100%,rgba(40,224,212,.13),transparent 38%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 48%,#040914 100%);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
      padding-bottom:0;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(159,216,255,.055) 1px,transparent 1px),
        linear-gradient(90deg,rgba(159,216,255,.045) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.75),rgba(0,0,0,.16));
      z-index:-2;
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(115deg,transparent 0 30%,rgba(40,224,212,.06) 44%,transparent 58%),
        radial-gradient(circle at 70% 8%,rgba(159,216,255,.12),transparent 18%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(40,224,212,.32);color:#fff}
    .site-container{width:min(calc(100% - 36px),var(--container));margin-inline:auto}
    .section{padding:104px 0;position:relative}
    .section-tight{padding:78px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--cyan);font-size:14px;font-weight:700;letter-spacing:.04em;
      border:1px solid rgba(40,224,212,.22);
      background:rgba(40,224,212,.08);
      padding:7px 13px;border-radius:999px;
      box-shadow:inset 0 0 18px rgba(40,224,212,.08);
    }
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:999px;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}
    .gradient-text{
      background:linear-gradient(105deg,#fff 0%,#9FD8FF 35%,#28E0D4 72%,#7C5CFF 100%);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .section-title{
      margin:18px 0 14px;
      font-size:clamp(30px,4vw,46px);
      line-height:1.16;
      letter-spacing:-.04em;
      font-weight:900;
    }
    .section-desc{color:var(--muted);font-size:17px;max-width:760px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:10px;
      min-height:48px;padding:0 22px;border-radius:999px;
      font-weight:800;letter-spacing:.01em;
      transition:transform .22s ease,border-color .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease;
      border:1px solid transparent;white-space:nowrap;
    }
    .btn-primary{
      color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 14px 44px rgba(30,123,255,.32),0 0 28px rgba(40,224,212,.18);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 56px rgba(30,123,255,.42),0 0 42px rgba(40,224,212,.24)}
    .btn-secondary{
      color:var(--text);background:rgba(12,28,58,.52);
      border-color:rgba(159,216,255,.22);backdrop-filter:blur(12px);
    }
    .btn-secondary:hover{transform:translateY(-3px);border-color:var(--border-strong);color:#fff;background:rgba(40,224,212,.1)}
    .btn:focus-visible,.nav-link:focus-visible,.tab-link:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{
      outline:3px solid rgba(40,224,212,.45);outline-offset:3px;
    }
    .btn:active{transform:translateY(0) scale(.98)}
    .glass{
      background:var(--panel);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
    }
    .hover-card{transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease}
    .hover-card:hover{transform:translateY(-5px);border-color:rgba(40,224,212,.42);background:rgba(15,34,66,.76);box-shadow:var(--shadow),var(--glow)}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(5,11,24,.68);
      backdrop-filter:blur(20px);
      border-bottom:1px solid rgba(130,170,255,.13);
    }
    .nav-wrap{
      height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.03em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      background:
        radial-gradient(circle at 30% 25%,rgba(255,255,255,.28),transparent 25%),
        linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 0 28px rgba(30,123,255,.32);
      color:#fff;font-size:20px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.12}
    .brand-text strong{font-size:18px}
    .brand-text span{font-size:12px;color:var(--muted);font-weight:700;letter-spacing:.02em}
    .desktop-nav{display:flex;align-items:center;gap:8px}
    .nav-link{
      position:relative;
      padding:10px 16px;border-radius:999px;color:var(--muted);
      font-size:15px;font-weight:700;
      transition:background .22s ease,color .22s ease,box-shadow .22s ease;
    }
    .nav-link:hover{color:#fff;background:rgba(159,216,255,.08)}
    .nav-link.active{
      color:#fff;background:linear-gradient(135deg,rgba(30,123,255,.35),rgba(40,224,212,.16));
      box-shadow:inset 0 0 0 1px rgba(40,224,212,.22),0 0 22px rgba(30,123,255,.16);
    }
    .nav-cta{display:flex;align-items:center;gap:10px}
    .status-pill{
      display:inline-flex;align-items:center;gap:8px;
      padding:9px 13px;border-radius:999px;
      color:var(--muted);font-size:13px;font-weight:700;
      background:rgba(12,28,58,.58);border:1px solid rgba(159,216,255,.14);
    }
    .status-pill i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
    .hero{
      position:relative;
      min-height:calc(100vh - 74px);
      display:flex;align-items:center;
      padding:86px 0 96px;
      overflow:hidden;
    }
    .hero-bg{
      position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(5,11,24,.95),rgba(5,11,24,.76) 45%,rgba(5,11,24,.9)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.72;
      z-index:-2;
    }
    .hero-bg:after{
      content:"";position:absolute;inset:0;
      background:radial-gradient(circle at 74% 44%,rgba(40,224,212,.18),transparent 28%),
                 linear-gradient(to bottom,transparent,rgba(5,11,24,.98));
    }
    .hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:54px;align-items:center}
    .hero h1{
      margin:22px 0 20px;
      font-size:clamp(38px,6vw,70px);
      line-height:1.04;
      font-weight:950;
      letter-spacing:-.065em;
    }
    .hero-lead{font-size:18px;color:var(--muted);max-width:680px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
    .trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
    .trust-item{
      padding:16px;border-radius:20px;
      background:rgba(12,28,58,.48);border:1px solid rgba(159,216,255,.14);
    }
    .trust-item strong{display:block;font-size:20px;color:#fff;line-height:1.25}
    .trust-item span{font-size:13px;color:var(--weak)}
    .console{
      position:relative;padding:26px;border-radius:32px;
      background:linear-gradient(180deg,rgba(13,25,48,.78),rgba(8,18,36,.64));
      border:1px solid rgba(159,216,255,.22);
      box-shadow:0 36px 120px rgba(0,0,0,.48),0 0 60px rgba(30,123,255,.18);
      overflow:hidden;
      backdrop-filter:blur(20px);
    }
    .console:before{
      content:"";position:absolute;inset:-1px;
      background:linear-gradient(135deg,rgba(40,224,212,.32),transparent 28%,rgba(124,92,255,.22) 70%,transparent);
      opacity:.45;pointer-events:none;
    }
    .console > *{position:relative}
    .console-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
    .console-title{font-weight:900;font-size:18px}
    .dots{display:flex;gap:7px}
    .dots span{width:9px;height:9px;border-radius:50%;background:rgba(159,216,255,.35)}
    .control-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .control-card{
      min-height:136px;padding:18px;border-radius:22px;
      background:rgba(3,10,24,.44);border:1px solid rgba(159,216,255,.14);
      overflow:hidden;
    }
    .control-card.large{grid-column:span 2;min-height:164px;background:linear-gradient(135deg,rgba(30,123,255,.18),rgba(40,224,212,.07))}
    .control-card .label{font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:10px}
    .control-card .value{font-size:30px;font-weight:950;line-height:1.1;margin-top:14px}
    .bar{height:8px;border-radius:99px;background:rgba(159,216,255,.12);margin-top:18px;overflow:hidden}
    .bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 16px rgba(40,224,212,.34)}
    .mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .mini-tags span,.tag{
      display:inline-flex;align-items:center;
      padding:6px 10px;border-radius:999px;
      font-size:12px;font-weight:800;
      color:#cfeaff;background:rgba(159,216,255,.09);border:1px solid rgba(159,216,255,.13)
    }
    .diag-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:28px;align-items:stretch;margin-top:42px}
    .image-panel{
      position:relative;border-radius:32px;overflow:hidden;min-height:440px;border:1px solid var(--border);
      background:#08162e;
      box-shadow:var(--shadow);
    }
    .image-panel img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
    .image-panel:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,24,.22),rgba(5,11,24,.84))}
    .image-caption{position:absolute;left:24px;right:24px;bottom:24px;z-index:1}
    .image-caption h3{font-size:25px;font-weight:950;margin:0 0 8px}
    .image-caption p{color:var(--muted);margin:0}
    .diagnostics{display:grid;gap:16px}
    .diagnostic-card{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:flex-start;padding:22px}
    .diag-icon{
      width:44px;height:44px;border-radius:16px;display:grid;place-items:center;
      background:rgba(30,123,255,.16);border:1px solid rgba(40,224,212,.24);
      color:var(--cyan);font-weight:950;
    }
    .diagnostic-card h3{margin:0 0 6px;font-size:20px;font-weight:900}
    .diagnostic-card p{margin:0;color:var(--muted)}
    .state{font-size:12px;font-weight:900;color:var(--cyan);padding:5px 9px;border-radius:999px;background:rgba(40,224,212,.08);border:1px solid rgba(40,224,212,.18)}
    .solution-shell{margin-top:44px;position:relative}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
    .steps:before{
      content:"";position:absolute;left:8%;right:8%;top:42px;height:1px;
      background:linear-gradient(90deg,transparent,var(--blue),var(--cyan),transparent);
      opacity:.58;
    }
    .step-card{padding:24px;position:relative;z-index:1}
    .step-num{
      width:42px;height:42px;border-radius:16px;display:grid;place-items:center;
      font-weight:950;color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 0 28px rgba(30,123,255,.3);margin-bottom:22px;
    }
    .step-card h3{font-size:20px;font-weight:900;margin-bottom:8px}
    .step-card p{color:var(--muted);margin:0}
    .value-card{
      display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;
      padding:30px;border-radius:32px;
      background:linear-gradient(135deg,rgba(13,25,48,.72),rgba(5,14,31,.82));
      border:1px solid var(--border);
      overflow:hidden;
    }
    .value-media{position:relative;min-height:430px;border-radius:28px;overflow:hidden;border:1px solid rgba(159,216,255,.16)}
    .value-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
    .value-media:after{content:"";position:absolute;inset:0;background:linear-gradient(30deg,rgba(5,11,24,.9),rgba(30,123,255,.22),rgba(40,224,212,.08))}
    .score-stack{position:absolute;left:22px;right:22px;bottom:22px;z-index:1;display:grid;gap:12px}
    .score-item{padding:14px 16px;border-radius:18px;background:rgba(5,11,24,.62);border:1px solid rgba(159,216,255,.18);backdrop-filter:blur(12px)}
    .score-item b{display:block;font-size:22px;line-height:1.1}
    .score-item span{font-size:13px;color:var(--muted)}
    .value-list{display:grid;gap:14px;margin-top:24px}
    .value-list li{
      list-style:none;display:flex;gap:12px;align-items:flex-start;
      color:var(--muted);padding:14px;border-radius:18px;background:rgba(159,216,255,.055);
      border:1px solid rgba(159,216,255,.1)
    }
    .value-list li:before{
      content:"";flex:0 0 10px;width:10px;height:10px;margin-top:9px;border-radius:50%;
      background:var(--cyan);box-shadow:0 0 16px rgba(40,224,212,.72)
    }
    .category-entry{
      display:grid;grid-template-columns:1fr .86fr;gap:24px;align-items:center;margin-top:42px;
      padding:26px;border-radius:32px;
      background:linear-gradient(135deg,rgba(30,123,255,.14),rgba(40,224,212,.055));
      border:1px solid rgba(40,224,212,.18);
    }
    .entry-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
    .entry-list span{padding:12px 14px;border-radius:16px;color:var(--muted);background:rgba(5,11,24,.34);border:1px solid rgba(159,216,255,.11)}
    .entry-visual{position:relative;min-height:310px;border-radius:26px;overflow:hidden;border:1px solid rgba(159,216,255,.14)}
    .entry-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
    .entry-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,24,.18),rgba(5,11,24,.78))}
    .testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:42px}
    .quote-card{padding:24px}
    .avatar{
      width:48px;height:48px;border-radius:18px;display:grid;place-items:center;margin-bottom:18px;
      background:linear-gradient(135deg,rgba(30,123,255,.9),rgba(40,224,212,.78));font-weight:950;
    }
    .quote-card blockquote{margin:0;color:#dbe8ff;font-size:16px}
    .quote-card cite{display:block;margin-top:18px;color:var(--muted);font-style:normal;font-size:14px}
    .resource-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;margin-top:42px}
    .resource-main{padding:28px;min-height:330px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden}
    .resource-main:before{
      content:"";position:absolute;inset:0;background:
      linear-gradient(180deg,rgba(5,11,24,.18),rgba(5,11,24,.86)),
      url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
      z-index:-1;
    }
    .resource-side{display:grid;gap:16px}
    .resource-item{padding:22px;display:flex;gap:16px;align-items:flex-start}
    .resource-index{font-size:22px;font-weight:950;color:var(--cyan)}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:42px}
    details{
      border:1px solid var(--border);
      border-radius:22px;
      background:rgba(13,25,48,.54);
      backdrop-filter:blur(16px);
      overflow:hidden;
      transition:border-color .22s ease,background .22s ease;
    }
    details:hover{border-color:rgba(40,224,212,.32);background:rgba(15,34,66,.68)}
    summary{
      list-style:none;cursor:pointer;
      padding:20px 22px;
      font-weight:900;
      display:flex;align-items:center;justify-content:space-between;gap:18px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;height:28px;display:grid;place-items:center;border-radius:50%;
      color:var(--cyan);background:rgba(40,224,212,.08);border:1px solid rgba(40,224,212,.18);
      flex:0 0 auto;
    }
    details[open] summary:after{content:"−"}
    details p{margin:0;padding:0 22px 22px;color:var(--muted)}
    .cta-band{
      position:relative;overflow:hidden;
      padding:40px;border-radius:34px;
      background:
        linear-gradient(135deg,rgba(30,123,255,.22),rgba(40,224,212,.1),rgba(124,92,255,.14)),
        rgba(13,25,48,.68);
      border:1px solid rgba(40,224,212,.25);
      box-shadow:0 30px 100px rgba(0,0,0,.4),0 0 60px rgba(30,123,255,.15);
    }
    .cta-band:before{
      content:"";position:absolute;inset:0;
      background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      opacity:.16;mix-blend-mode:screen;
    }
    .cta-content{position:relative;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}
    .cta-content h2{font-size:clamp(28px,4vw,44px);line-height:1.16;font-weight:950;margin:0 0 10px}
    .cta-content p{color:var(--muted);margin:0;max-width:720px}
    .contact-form{margin-top:34px;display:grid;grid-template-columns:repeat(4,1fr);gap:12px;position:relative}
    .field{
      width:100%;border:1px solid rgba(159,216,255,.16);border-radius:16px;
      background:rgba(5,11,24,.42);color:#fff;padding:13px 14px;
      transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
    }
    .field::placeholder{color:rgba(169,183,208,.58)}
    .field:focus{border-color:rgba(40,224,212,.5);background:rgba(5,11,24,.65);box-shadow:0 0 0 4px rgba(40,224,212,.08)}
    .site-footer{
      padding:58px 0 90px;
      border-top:1px solid rgba(130,170,255,.13);
      background:linear-gradient(180deg,rgba(5,11,24,.2),rgba(3,8,18,.9));
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:34px}
    .footer-title{font-weight:950;font-size:18px;margin-bottom:14px}
    .footer-text,.footer-links a,.copyright{color:var(--muted);font-size:14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a:hover{color:var(--cyan)}
    .copyright{margin-top:34px;padding-top:22px;border-top:1px solid rgba(159,216,255,.1);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
    .mobile-tabs{
      display:none;
      position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));
      z-index:70;
      padding:8px;border-radius:24px;
      background:rgba(5,11,24,.78);
      border:1px solid rgba(130,170,255,.18);
      backdrop-filter:blur(22px);
      box-shadow:0 18px 60px rgba(0,0,0,.45),0 0 28px rgba(30,123,255,.14);
    }
    .tab-link{
      flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
      min-height:54px;border-radius:18px;color:var(--muted);font-size:12px;font-weight:800;
      transition:background .22s ease,color .22s ease;
    }
    .tab-link .tab-icon{font-size:18px;line-height:1}
    .tab-link.active{
      color:#fff;background:linear-gradient(135deg,rgba(30,123,255,.28),rgba(40,224,212,.14));
      box-shadow:inset 0 0 0 1px rgba(40,224,212,.18);
    }
    @media (max-width:1024px){
      .hero-grid,.diag-wrap,.value-card,.category-entry,.resource-grid{grid-template-columns:1fr}
      .console{max-width:680px;margin:auto}
      .steps{grid-template-columns:repeat(2,1fr)}
      .steps:before{display:none}
      .testimonials{grid-template-columns:1fr 1fr}
      .contact-form{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      body{padding-bottom:96px}
      .site-container{width:min(calc(100% - 28px),var(--container))}
      .desktop-nav,.nav-cta{display:none}
      .nav-wrap{height:66px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .brand-text strong{font-size:16px}
      .hero{min-height:auto;padding:58px 0 68px}
      .hero h1{letter-spacing:-.05em}
      .hero-lead,.section-desc{font-size:16px}
      .trust-row,.control-grid,.entry-list,.faq-list,.footer-grid{grid-template-columns:1fr}
      .control-card.large{grid-column:auto}
      .section{padding:70px 0}
      .section-tight{padding:58px 0}
      .image-panel,.value-media{min-height:330px}
      .testimonials,.steps{grid-template-columns:1fr}
      .cta-content{grid-template-columns:1fr}
      .contact-form{grid-template-columns:1fr}
      .mobile-tabs{display:flex}
      .btn{width:100%}
      .hero-actions{display:grid;grid-template-columns:1fr;width:100%}
      .diagnostic-card{grid-template-columns:auto 1fr}
      .diagnostic-card .state{grid-column:2}
    }
    @media (max-width:520px){
      .site-container{width:min(calc(100% - 22px),var(--container))}
      .hero h1{font-size:38px}
      .section-title{font-size:30px}
      .glass,.step-card,.quote-card,.resource-item{border-radius:20px}
      .console,.cta-band,.value-card,.category-entry{padding:20px;border-radius:26px}
      summary{padding:18px}
      details p{padding:0 18px 18px}
      .copyright{font-size:12px}
    }

/* roulang page: category1 */
:root{
      --bg:#050B18;
      --bg-2:#07111F;
      --panel:rgba(13,25,48,.58);
      --panel-strong:rgba(12,27,55,.82);
      --panel-soft:rgba(18,36,70,.42);
      --line:rgba(130,170,255,.18);
      --line-strong:rgba(40,224,212,.42);
      --text:#F5F8FF;
      --muted:#A9B7D0;
      --weak:#6F7F99;
      --blue:#1E7BFF;
      --cyan:#28E0D4;
      --purple:#7C5CFF;
      --ice:#9FD8FF;
      --radius-lg:32px;
      --radius-md:24px;
      --radius-sm:16px;
      --shadow:0 24px 70px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.05);
      --glow:0 0 34px rgba(30,123,255,.35), 0 0 60px rgba(40,224,212,.12);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      color:var(--text);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      line-height:1.75;
      background:
        radial-gradient(circle at 16% 8%, rgba(30,123,255,.26), transparent 30%),
        radial-gradient(circle at 82% 12%, rgba(124,92,255,.18), transparent 28%),
        radial-gradient(circle at 70% 72%, rgba(40,224,212,.12), transparent 32%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 45%,#040817);
      overflow-x:hidden;
      padding-bottom:0;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(159,216,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(159,216,255,.045) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),rgba(0,0,0,.25),rgba(0,0,0,.8));
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background:
        linear-gradient(120deg, transparent 0%, rgba(40,224,212,.08) 42%, transparent 58%),
        radial-gradient(circle at 50% 0%, rgba(255,255,255,.05), transparent 46%);
      opacity:.75;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    input,textarea,select{
      width:100%;
      color:var(--text);
      background:rgba(5,11,24,.48);
      border:1px solid var(--line);
      border-radius:16px;
      padding:14px 16px;
      outline:none;
      transition:.25s ease;
    }
    input:focus,textarea:focus,select:focus{
      border-color:var(--cyan);
      box-shadow:0 0 0 4px rgba(40,224,212,.12);
      background:rgba(9,19,39,.72);
    }
    textarea{min-height:118px;resize:vertical}
    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(22px);
      background:linear-gradient(180deg, rgba(5,11,24,.86), rgba(5,11,24,.62));
      border-bottom:1px solid rgba(130,170,255,.14);
      box-shadow:0 18px 55px rgba(0,0,0,.18);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:16px;
      color:#fff;
      font-weight:900;
      letter-spacing:-.04em;
      background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.35), transparent 32%),
        linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:var(--glow);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      width:28px;
      height:2px;
      background:rgba(255,255,255,.7);
      transform:rotate(-35deg);
      bottom:10px;
      right:-5px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:17px;letter-spacing:.01em}
    .brand-text span{font-size:12px;color:var(--muted);margin-top:4px}
    .desktop-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:6px;
      border:1px solid rgba(130,170,255,.13);
      background:rgba(12,26,52,.45);
      border-radius:999px;
    }
    .nav-link{
      position:relative;
      padding:10px 18px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      transition:.25s ease;
      outline:none;
    }
    .nav-link:hover,.nav-link:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.06);
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(30,123,255,.88),rgba(40,224,212,.72));
      box-shadow:0 10px 28px rgba(30,123,255,.26);
    }
    .nav-cta{display:flex;align-items:center;gap:12px}
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      height:38px;
      padding:0 14px;
      border-radius:999px;
      font-size:13px;
      color:var(--muted);
      border:1px solid var(--line);
      background:rgba(13,25,48,.5);
    }
    .status-pill i{
      width:8px;height:8px;border-radius:999px;background:var(--cyan);
      box-shadow:0 0 14px var(--cyan);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:0;
      cursor:pointer;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:700;
      line-height:1.2;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
      outline:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--blue),var(--cyan));
      box-shadow:0 18px 48px rgba(30,123,255,.32), 0 0 20px rgba(40,224,212,.18);
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(13,25,48,.52);
      border:1px solid var(--line);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .btn:hover,.btn:focus-visible{transform:translateY(-2px)}
    .btn-primary:hover,.btn-primary:focus-visible{box-shadow:0 24px 60px rgba(30,123,255,.43),0 0 36px rgba(40,224,212,.26)}
    .btn-secondary:hover,.btn-secondary:focus-visible{border-color:var(--line-strong);background:rgba(28,60,110,.52);color:#fff}
    .btn:active{transform:translateY(0) scale(.98)}
    .mobile-tabs{display:none}
    main{position:relative}
    .section{padding:94px 0}
    .section-tight{padding:70px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--cyan);
      font-size:14px;
      font-weight:800;
      letter-spacing:.08em;
      padding:8px 13px;
      border:1px solid rgba(40,224,212,.28);
      border-radius:999px;
      background:rgba(40,224,212,.07);
    }
    .eyebrow:before{
      content:"";
      width:7px;height:7px;border-radius:99px;background:var(--cyan);
      box-shadow:0 0 14px var(--cyan);
    }
    .gradient-text{
      background:linear-gradient(100deg,#fff 0%,var(--ice) 38%,var(--cyan) 72%,#fff 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero{
      padding:74px 0 80px;
      position:relative;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(5,11,24,.94), rgba(5,11,24,.7), rgba(5,11,24,.96)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      opacity:.86;
      z-index:-2;
    }
    .hero:after{
      content:"";
      position:absolute;
      inset:auto -12% -38% 36%;
      height:360px;
      background:radial-gradient(circle, rgba(40,224,212,.17), transparent 68%);
      filter:blur(2px);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:44px;
      align-items:center;
    }
    .hero h1{
      margin:20px 0 18px;
      font-size:clamp(2.25rem, 5.2vw, 4.35rem);
      line-height:1.06;
      font-weight:950;
      letter-spacing:-.055em;
    }
    .hero-lead{
      max-width:760px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin-top:30px;
    }
    .hero-point{
      padding:16px;
      border-radius:20px;
      background:rgba(13,25,48,.5);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:14px;
    }
    .hero-point strong{
      display:block;
      color:var(--text);
      font-size:18px;
      margin-bottom:4px;
    }
    .index-panel{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(13,25,48,.72),rgba(8,18,38,.56));
      box-shadow:var(--shadow);
      backdrop-filter:blur(22px);
      overflow:hidden;
    }
    .panel-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:20px 22px;
      border-bottom:1px solid rgba(130,170,255,.14);
      background:rgba(255,255,255,.03);
    }
    .traffic-lights{display:flex;gap:7px}
    .traffic-lights span{width:10px;height:10px;border-radius:50%;background:var(--weak)}
    .traffic-lights span:nth-child(1){background:#ff6b7a}
    .traffic-lights span:nth-child(2){background:#ffd166}
    .traffic-lights span:nth-child(3){background:var(--cyan)}
    .panel-body{padding:24px}
    .index-list{display:grid;gap:14px}
    .index-row{
      display:grid;
      grid-template-columns:42px 1fr auto;
      gap:14px;
      align-items:center;
      padding:16px;
      border-radius:20px;
      border:1px solid rgba(130,170,255,.14);
      background:rgba(255,255,255,.035);
      transition:.25s ease;
    }
    .index-row:hover{transform:translateX(4px);border-color:rgba(40,224,212,.4);background:rgba(40,224,212,.055)}
    .index-icon{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,rgba(30,123,255,.85),rgba(124,92,255,.68));
      box-shadow:0 12px 30px rgba(30,123,255,.18);
    }
    .index-row h3{margin:0;font-size:17px}
    .index-row p{margin:2px 0 0;color:var(--muted);font-size:13px;line-height:1.55}
    .index-row em{
      font-style:normal;
      font-size:12px;
      color:var(--cyan);
      border:1px solid rgba(40,224,212,.24);
      padding:6px 9px;
      border-radius:999px;
      background:rgba(40,224,212,.06);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:34px;
    }
    .section-title{max-width:760px}
    .section-title h2{
      margin:16px 0 12px;
      font-size:clamp(1.85rem,3.5vw,2.75rem);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .section-title p{color:var(--muted);font-size:17px;max-width:760px}
    .glass-card{
      border:1px solid var(--line);
      background:linear-gradient(180deg,rgba(13,25,48,.62),rgba(9,20,42,.44));
      border-radius:var(--radius-md);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      transition:.25s ease;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(40,224,212,.38);
      background:linear-gradient(180deg,rgba(20,42,82,.68),rgba(10,24,50,.48));
      box-shadow:0 28px 80px rgba(0,0,0,.34),0 0 32px rgba(30,123,255,.13);
    }
    .overview-layout{
      display:grid;
      grid-template-columns:310px 1fr;
      gap:24px;
      align-items:start;
    }
    .directory{
      padding:22px;
      position:sticky;
      top:98px;
    }
    .directory h3{font-size:21px;margin:0 0 16px;font-weight:850}
    .directory-menu{display:grid;gap:10px}
    .directory-menu a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:14px 15px;
      border-radius:16px;
      border:1px solid transparent;
      color:var(--muted);
      background:rgba(255,255,255,.026);
      transition:.22s ease;
    }
    .directory-menu a:hover,.directory-menu a:focus-visible{
      color:#fff;
      border-color:rgba(40,224,212,.3);
      background:rgba(40,224,212,.06);
    }
    .directory-menu span{
      width:8px;height:8px;border-radius:50%;background:rgba(40,224,212,.45);
      box-shadow:0 0 12px rgba(40,224,212,.4);
    }
    .category-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .category-card{padding:24px;min-height:238px}
    .card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
    .card-icon{
      width:48px;height:48px;border-radius:18px;
      display:grid;place-items:center;
      font-size:22px;
      background:linear-gradient(135deg,rgba(30,123,255,.76),rgba(40,224,212,.28));
      border:1px solid rgba(159,216,255,.2);
      box-shadow:0 14px 32px rgba(30,123,255,.2);
    }
    .tag{
      display:inline-flex;
      align-items:center;
      border-radius:999px;
      padding:6px 10px;
      color:var(--cyan);
      border:1px solid rgba(40,224,212,.25);
      background:rgba(40,224,212,.06);
      font-size:12px;
      white-space:nowrap;
    }
    .category-card h3{font-size:22px;margin:0 0 10px;font-weight:850}
    .category-card p{color:var(--muted);margin:0 0 16px}
    .meta-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
    .meta-list span{
      color:var(--muted);
      font-size:12px;
      padding:6px 9px;
      border-radius:999px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(130,170,255,.12);
    }
    .feature-panels{
      display:grid;
      gap:22px;
    }
    .feature-panel{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:28px;
      padding:26px;
      align-items:center;
    }
    .feature-panel:nth-child(even){grid-template-columns:1.08fr .92fr}
    .feature-media{
      min-height:270px;
      border-radius:26px;
      overflow:hidden;
      position:relative;
      border:1px solid rgba(130,170,255,.18);
      background:#07111F;
    }
    .feature-media img{
      width:100%;
      height:100%;
      min-height:270px;
      object-fit:cover;
      opacity:.7;
    }
    .feature-media:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(5,11,24,.12),rgba(5,11,24,.74)),radial-gradient(circle at 25% 20%,rgba(40,224,212,.24),transparent 36%);
    }
    .feature-copy h3{font-size:26px;line-height:1.25;margin:0 0 12px;font-weight:900}
    .feature-copy p{color:var(--muted);margin:0 0 18px}
    .check-list{display:grid;gap:11px;margin:18px 0 22px;padding:0;list-style:none}
    .check-list li{
      position:relative;
      padding-left:28px;
      color:var(--muted);
    }
    .check-list li:before{
      content:"";
      width:10px;height:10px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px rgba(40,224,212,.6);
      position:absolute;left:0;top:.72em;
    }
    .guide-table-wrap{
      overflow:auto;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:rgba(13,25,48,.46);
      box-shadow:var(--shadow);
    }
    .guide-table{
      width:100%;
      min-width:760px;
      border-collapse:separate;
      border-spacing:0;
    }
    .guide-table th,.guide-table td{
      padding:20px;
      text-align:left;
      border-bottom:1px solid rgba(130,170,255,.13);
      color:var(--muted);
      vertical-align:top;
    }
    .guide-table th{
      color:var(--text);
      font-size:16px;
      background:rgba(255,255,255,.04);
    }
    .guide-table tr:last-child td{border-bottom:0}
    .guide-table strong{display:block;color:var(--text);margin-bottom:4px}
    .guide-table .suit{color:var(--cyan);font-weight:800}
    .resource-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .resource-card{overflow:hidden}
    .resource-image{
      height:178px;
      position:relative;
      overflow:hidden;
      border-radius:24px 24px 0 0;
      background:#081328;
    }
    .resource-image img{width:100%;height:100%;object-fit:cover;opacity:.72;transition:.35s ease}
    .resource-card:hover .resource-image img{transform:scale(1.05);opacity:.82}
    .resource-image:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,transparent,rgba(5,11,24,.84));
    }
    .resource-body{padding:22px}
    .resource-body h3{font-size:20px;margin:12px 0 10px;font-weight:850;line-height:1.35}
    .resource-body p{color:var(--muted);margin:0 0 16px}
    .text-link{
      color:var(--cyan);
      font-weight:800;
      display:inline-flex;
      gap:8px;
      align-items:center;
      transition:.22s ease;
    }
    .text-link:hover{color:#fff;transform:translateX(3px)}
    .faq-list{display:grid;gap:14px;max-width:960px;margin:0 auto}
    details{
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(13,25,48,.52);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
      overflow:hidden;
      transition:.25s ease;
    }
    details:hover{border-color:rgba(40,224,212,.32)}
    summary{
      list-style:none;
      cursor:pointer;
      padding:20px 24px;
      font-weight:850;
      color:var(--text);
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:center;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:30px;height:30px;border-radius:12px;
      display:grid;place-items:center;
      color:var(--cyan);
      background:rgba(40,224,212,.08);
      border:1px solid rgba(40,224,212,.2);
      flex:0 0 auto;
    }
    details[open] summary:after{content:"−"}
    details p{
      margin:0;
      padding:0 24px 22px;
      color:var(--muted);
    }
    .contact-band{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      padding:34px;
      border:1px solid rgba(40,224,212,.28);
      background:
        linear-gradient(135deg,rgba(30,123,255,.22),rgba(40,224,212,.08) 48%,rgba(124,92,255,.18)),
        rgba(13,25,48,.64);
      box-shadow:0 30px 90px rgba(0,0,0,.38),0 0 60px rgba(30,123,255,.16);
    }
    .contact-band:before{
      content:"";
      position:absolute;
      inset:0;
      background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      opacity:.14;
      mix-blend-mode:screen;
    }
    .contact-grid{
      position:relative;
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:28px;
      align-items:start;
    }
    .contact-copy h2{font-size:clamp(1.9rem,3.4vw,2.8rem);line-height:1.18;margin:14px 0 14px;font-weight:950;letter-spacing:-.04em}
    .contact-copy p{color:var(--muted);font-size:17px}
    .contact-form{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
      padding:22px;
      border-radius:26px;
      border:1px solid rgba(130,170,255,.18);
      background:rgba(5,11,24,.42);
      backdrop-filter:blur(18px);
    }
    .contact-form .full{grid-column:1/-1}
    .form-note{color:var(--weak);font-size:13px;margin:2px 0 0}
    .site-footer{
      padding:64px 0 30px;
      border-top:1px solid rgba(130,170,255,.14);
      background:linear-gradient(180deg,rgba(5,11,24,.28),rgba(3,7,16,.94));
      position:relative;
    }
    .site-footer:before{
      content:"";
      position:absolute;
      top:-1px;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--blue),var(--cyan),transparent);
      opacity:.55;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .7fr 1fr;
      gap:40px;
      align-items:start;
    }
    .footer-title{font-weight:850;margin-bottom:14px;color:var(--text)}
    .footer-text{color:var(--muted);font-size:14px;line-height:1.8}
    .footer-links{display:grid;gap:10px}
    .footer-links a{
      color:var(--muted);
      transition:.22s ease;
      width:max-content;
    }
    .footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(130,170,255,.12);
      display:flex;
      justify-content:space-between;
      gap:16px;
      color:var(--weak);
      font-size:13px;
      flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .nav-cta .status-pill{display:none}
      .hero-grid,.overview-layout,.contact-grid{grid-template-columns:1fr}
      .directory{position:relative;top:0}
      .feature-panel,.feature-panel:nth-child(even){grid-template-columns:1fr}
      .feature-panel:nth-child(even) .feature-media{order:-1}
      .resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:768px){
      body{padding-bottom:calc(86px + env(safe-area-inset-bottom))}
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-wrap{height:68px}
      .desktop-nav,.nav-cta{display:none}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-text strong{font-size:15px}
      .hero{padding:48px 0 56px}
      .hero-grid{gap:26px}
      .hero-points{grid-template-columns:1fr}
      .section{padding:64px 0}
      .section-tight{padding:52px 0}
      .section-head{display:block}
      .category-grid,.resource-grid{grid-template-columns:1fr}
      .feature-panel{padding:18px;border-radius:24px}
      .contact-band{padding:22px;border-radius:28px}
      .contact-form{grid-template-columns:1fr;padding:18px}
      .footer-grid{grid-template-columns:1fr;gap:26px}
      .mobile-tabs{
        position:fixed;
        left:12px;
        right:12px;
        bottom:calc(10px + env(safe-area-inset-bottom));
        z-index:60;
        display:grid;
        grid-template-columns:repeat(2,1fr);
        gap:8px;
        padding:10px;
        border:1px solid rgba(130,170,255,.18);
        border-radius:24px;
        background:rgba(5,11,24,.78);
        backdrop-filter:blur(22px);
        box-shadow:0 16px 60px rgba(0,0,0,.42),0 0 30px rgba(30,123,255,.12);
      }
      .mobile-tabs a{
        display:flex;
        flex-direction:column;
        align-items:center;
        justify-content:center;
        gap:4px;
        min-height:52px;
        color:var(--muted);
        border-radius:18px;
        font-size:12px;
        transition:.22s ease;
      }
      .mobile-tabs a b{font-size:18px;line-height:1}
      .mobile-tabs a.active{
        color:#fff;
        background:linear-gradient(135deg,rgba(30,123,255,.78),rgba(40,224,212,.28));
        box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 24px rgba(40,224,212,.12);
      }
    }
    @media (max-width:520px){
      .hero h1{font-size:38px}
      .hero-lead,.section-title p,.contact-copy p{font-size:16px}
      .hero-actions .btn{width:100%}
      .panel-body{padding:16px}
      .index-row{grid-template-columns:38px 1fr;padding:14px}
      .index-row em{grid-column:1/-1;width:max-content}
      .category-card{padding:20px}
      summary{padding:18px}
      details p{padding:0 18px 18px}
      .copyright{display:grid}
    }