/* roulang page: index */
:root{
      --bg:#09060d;
      --bg-2:#130817;
      --bg-3:#210b25;
      --card:#17101e;
      --card-2:#211228;
      --text:#fff7ff;
      --muted:#c7b4cf;
      --weak:#927f9e;
      --line:rgba(255,255,255,.12);
      --line-hot:rgba(255,74,166,.42);
      --pink:#ff3f9b;
      --violet:#8b5cf6;
      --cyan:#20e7ff;
      --amber:#ffb454;
      --radius-xl:24px;
      --radius-2xl:32px;
      --shadow:0 24px 80px rgba(255,63,155,.16),0 8px 32px rgba(32,231,255,.08);
      --shadow-soft:0 16px 40px rgba(0,0,0,.28);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.75;
      background:
        radial-gradient(circle at 12% 8%, rgba(255,63,155,.25), transparent 34%),
        radial-gradient(circle at 84% 18%, rgba(32,231,255,.16), transparent 30%),
        radial-gradient(circle at 50% 88%, rgba(139,92,246,.18), transparent 34%),
        linear-gradient(135deg,#09060d 0%,#130817 42%,#09060d 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.38;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(120deg, transparent 0 44%, rgba(255,63,155,.08) 45%, transparent 47% 100%);
      background-size:48px 48px,48px 48px,180px 180px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.25));
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(255,63,155,.38);color:#fff}
    .site-container{width:min(1180px,calc(100% - 32px));margin-inline:auto}
    .nav-shell{
      position:sticky;top:0;z-index:50;
      border-bottom:1px solid rgba(255,255,255,.09);
      background:rgba(9,6,13,.82);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 48px rgba(0,0,0,.22);
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--pink),var(--violet) 55%,var(--cyan));
      box-shadow:0 0 28px rgba(255,63,155,.34);
      clip-path:polygon(12% 0,100% 0,100% 78%,80% 100%,0 100%,0 16%);
    }
    .brand-mark span{width:18px;height:18px;border:2px solid rgba(255,255,255,.92);border-radius:6px;transform:rotate(45deg)}
    .nav-link{
      position:relative;
      color:#d8c7df;
      font-weight:700;
      font-size:14px;
      padding:10px 14px;
      border-radius:999px;
      transition:.22s ease;
      outline:none;
    }
    .nav-link:hover,.nav-link:focus-visible{color:#fff;background:rgba(255,255,255,.07)}
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(255,63,155,.20),rgba(32,231,255,.12));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04);
    }
    .mega-trigger{position:relative}
    .mega-panel{
      position:absolute;right:0;top:calc(100% + 16px);
      width:min(820px,calc(100vw - 32px));
      opacity:0;visibility:hidden;transform:translateY(10px);
      transition:.22s ease;
      background:linear-gradient(145deg,rgba(25,12,32,.98),rgba(12,8,18,.98));
      border:1px solid rgba(255,255,255,.12);
      border-radius:30px;
      box-shadow:var(--shadow);
      padding:18px;
    }
    .mega-trigger:hover .mega-panel,.mega-trigger:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
    .mega-card{
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.045);
      border-radius:22px;
      padding:16px;
      transition:.22s ease;
    }
    .mega-card:hover{border-color:rgba(32,231,255,.35);transform:translateY(-2px);background:rgba(255,255,255,.07)}
    .mobile-menu{display:none}
    #menu-toggle{display:none}
    .btn{
      min-height:46px;
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:999px;
      padding:12px 20px;
      font-weight:800;
      transition:.22s ease;
      outline:none;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:white;
      background:linear-gradient(135deg,var(--pink),var(--violet) 55%,var(--cyan));
      box-shadow:0 16px 36px rgba(255,63,155,.24);
    }
    .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 22px 52px rgba(255,63,155,.32)}
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.055);
      border-color:rgba(255,255,255,.14);
    }
    .btn-secondary:hover{background:rgba(255,63,155,.12);border-color:rgba(255,63,155,.36);transform:translateY(-2px)}
    .btn:focus-visible,.nav-link:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(32,231,255,.34);
      outline-offset:3px;
    }
    .badge{
      display:inline-flex;align-items:center;gap:7px;
      border-radius:999px;
      padding:7px 12px;
      font-size:13px;font-weight:800;
      color:#ffeaf7;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.12);
    }
    .badge.hot{background:rgba(255,63,155,.13);border-color:rgba(255,63,155,.28)}
    .badge.safe{background:rgba(32,231,255,.10);border-color:rgba(32,231,255,.25)}
    .badge.warn{background:rgba(255,180,84,.12);border-color:rgba(255,180,84,.28);color:#ffe0b0}
    .section{padding:88px 0}
    .section-tight{padding:64px 0}
    .panel{
      position:relative;
      border:1px solid rgba(255,255,255,.11);
      background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.035));
      border-radius:var(--radius-2xl);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .panel:before{
      content:"";position:absolute;inset:0 0 auto 0;height:3px;
      background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));
      opacity:.8;
    }
    .card{
      border:1px solid rgba(255,255,255,.11);
      background:linear-gradient(145deg,rgba(33,18,40,.88),rgba(17,10,23,.88));
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      transition:.22s ease;
      position:relative;
      overflow:hidden;
    }
    .card:after{
      content:"";position:absolute;right:-54px;top:-54px;width:140px;height:140px;
      background:radial-gradient(circle,rgba(255,63,155,.18),transparent 68%);
      pointer-events:none;
    }
    .card:hover{transform:translateY(-4px);border-color:rgba(255,63,155,.32);box-shadow:var(--shadow)}
    .hero{
      padding:86px 0 46px;
      position:relative;
    }
    .hero-stage{
      border-radius:38px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 18% 18%,rgba(255,63,155,.24),transparent 30%),
        radial-gradient(circle at 85% 20%,rgba(32,231,255,.18),transparent 28%),
        linear-gradient(135deg,rgba(33,11,37,.92),rgba(10,6,14,.94));
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-stage:before{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(115deg,transparent 0 28%,rgba(255,255,255,.07) 29%,transparent 30% 52%,rgba(32,231,255,.06) 53%,transparent 55%);
      opacity:.65;
      pointer-events:none;
    }
    .hero-title{
      font-size:clamp(34px,6vw,68px);
      line-height:1.08;
      letter-spacing:-.05em;
      font-weight:900;
    }
    .grad-text{
      background:linear-gradient(100deg,#fff 0%,#ff8ac7 35%,#b79cff 68%,#56f0ff 100%);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .benefit-strip{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
    }
    .mini-stat{
      border-radius:22px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.055);
      padding:16px;
    }
    .mini-stat strong{font-size:30px;line-height:1;font-weight:900}
    .entry-tile{
      min-height:132px;
      padding:18px;
      border-radius:26px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.11);
      transition:.22s ease;
    }
    .entry-tile:hover{background:rgba(255,255,255,.085);border-color:rgba(32,231,255,.35);transform:translateY(-3px)}
    .energy-line{height:4px;border-radius:999px;background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));opacity:.8}
    .step-number{
      width:54px;height:54px;border-radius:18px;
      display:grid;place-items:center;
      font-weight:900;
      background:linear-gradient(135deg,rgba(255,63,155,.95),rgba(139,92,246,.95));
      box-shadow:0 12px 28px rgba(255,63,155,.24);
    }
    .info-list li{
      display:flex;gap:12px;
      padding:14px 0;
      border-bottom:1px solid rgba(255,255,255,.09);
      color:#d9c9e1;
    }
    .info-list li:last-child{border-bottom:0}
    .dot{
      width:10px;height:10px;flex:0 0 10px;margin-top:9px;border-radius:999px;
      background:linear-gradient(135deg,var(--pink),var(--cyan));
      box-shadow:0 0 16px rgba(32,231,255,.5);
    }
    .news-list a{
      display:flex;justify-content:space-between;gap:18px;
      padding:18px 0;
      border-bottom:1px solid rgba(255,255,255,.09);
      color:#efe5f4;
      transition:.2s ease;
    }
    .news-list a:hover{color:#fff;padding-left:8px}
    .news-list time{color:var(--weak);font-size:13px;white-space:nowrap}
    details.faq-item{
      border:1px solid rgba(255,255,255,.11);
      border-radius:22px;
      background:rgba(255,255,255,.045);
      overflow:hidden;
      transition:.22s ease;
    }
    details.faq-item[open]{border-color:rgba(32,231,255,.34);background:rgba(255,255,255,.07)}
    details.faq-item summary{
      cursor:pointer;list-style:none;
      padding:20px 22px;
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      font-weight:800;color:#fff;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary span.icon{transition:.22s ease;color:#57f1ff;font-size:22px}
    details.faq-item[open] summary span.icon{transform:rotate(45deg);color:#ff75ba}
    .faq-body{padding:0 22px 20px;color:#cbbbd4}
    .form-field{
      width:100%;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(8,5,12,.72);
      color:#fff;
      border-radius:18px;
      padding:14px 16px;
      transition:.2s ease;
      outline:none;
    }
    .form-field::placeholder{color:#81708e}
    .form-field:focus{border-color:rgba(32,231,255,.48);box-shadow:0 0 0 4px rgba(32,231,255,.10)}
    .footer{
      border-top:1px solid rgba(255,255,255,.1);
      background:linear-gradient(180deg,rgba(13,7,18,.92),rgba(5,3,8,.98));
      position:relative;
    }
    .footer:before{
      content:"";position:absolute;inset:0 0 auto 0;height:2px;
      background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));
      opacity:.75;
    }
    @media (max-width:1024px){
      .desktop-nav{display:none}
      .mobile-menu{display:block}
      .mega-trigger{display:none}
      #menu-toggle:checked ~ .mobile-drawer{display:block}
      .mobile-drawer{display:none}
      .benefit-strip{grid-template-columns:1fr}
      .section{padding:68px 0}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 24px,1180px)}
      .hero{padding-top:54px}
      .hero-stage{border-radius:28px}
      .panel{border-radius:26px}
      .card{border-radius:22px}
      .section{padding:58px 0}
      .news-list a{display:block}
      .news-list time{display:block;margin-top:6px}
    }
    @media (max-width:520px){
      .btn{width:100%;padding-inline:16px}
      .hero-title{font-size:34px}
      .brand-text{font-size:15px}
    }

/* roulang page: category1 */
:root{
      --bg:#09060d;
      --bg-2:#130817;
      --bg-3:#210b25;
      --card:#170b1d;
      --card-2:#1f0d28;
      --text:#fff7ff;
      --muted:#c7b4cf;
      --weak:#927f9e;
      --line:rgba(255,255,255,.12);
      --line-hot:rgba(255,65,151,.34);
      --pink:#ff3d9a;
      --violet:#8b5cf6;
      --cyan:#22d3ee;
      --amber:#f59e0b;
      --green:#34d399;
      --radius:28px;
      --shadow:0 24px 80px rgba(255,61,154,.14),0 18px 60px rgba(34,211,238,.08);
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      background:
        radial-gradient(circle at 18% 10%,rgba(255,61,154,.24),transparent 34%),
        radial-gradient(circle at 82% 22%,rgba(34,211,238,.14),transparent 28%),
        radial-gradient(circle at 55% 70%,rgba(139,92,246,.18),transparent 32%),
        linear-gradient(145deg,var(--bg),var(--bg-2) 48%,#070409);
      color:var(--text);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background:
        linear-gradient(115deg,transparent 0 47%,rgba(255,255,255,.05) 47.2%,transparent 47.7% 100%),
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
      background-size:100% 100%,42px 42px,42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.95),rgba(0,0,0,.25));
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(255,61,154,.45);color:#fff}
    .site-container{
      width:min(100% - 32px,1240px);
      margin-inline:auto;
    }
    .nav-shell{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(9,6,13,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(255,255,255,.1);
      box-shadow:0 12px 40px rgba(0,0,0,.28);
    }
    .brand-mark{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:linear-gradient(135deg,var(--pink),var(--violet) 54%,var(--cyan));
      box-shadow:0 12px 34px rgba(255,61,154,.26);
      transform:skew(-6deg);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      inset:2px;
      border-radius:13px;
      border:1px solid rgba(255,255,255,.42);
    }
    .brand-mark span{
      width:18px;
      height:18px;
      border:3px solid #fff;
      border-left-color:transparent;
      border-bottom-color:rgba(255,255,255,.42);
      transform:rotate(45deg);
      border-radius:5px;
    }
    .brand-text{font-size:1.05rem}
    .desktop-nav{display:flex}
    .nav-link{
      position:relative;
      padding:.68rem .9rem;
      color:var(--muted);
      border-radius:999px;
      font-size:.94rem;
      font-weight:800;
      transition:.22s ease;
      outline:none;
    }
    .nav-link:hover,.nav-link:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.06);
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(255,61,154,.22),rgba(34,211,238,.12));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:inset 0 0 22px rgba(255,61,154,.12);
    }
    .nav-link.active:after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:4px;
      height:2px;
      border-radius:99px;
      background:linear-gradient(90deg,var(--pink),var(--cyan));
    }
    #menu-toggle{display:none}
    .mobile-menu,.mobile-drawer{display:none}
    .btn{
      min-height:44px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      padding:.74rem 1.08rem;
      border-radius:999px;
      font-weight:900;
      border:1px solid transparent;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease,filter .22s ease;
      outline:none;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.98)}
    .btn:focus-visible{box-shadow:0 0 0 4px rgba(34,211,238,.22),0 0 0 1px var(--cyan)}
    .btn-primary{
      color:white;
      background:linear-gradient(135deg,var(--pink),var(--violet) 56%,var(--cyan));
      box-shadow:0 18px 44px rgba(255,61,154,.22);
    }
    .btn-primary:hover{filter:brightness(1.1);box-shadow:0 24px 58px rgba(255,61,154,.32)}
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.055);
      border-color:rgba(255,255,255,.14);
    }
    .btn-secondary:hover{
      background:rgba(255,61,154,.13);
      border-color:rgba(255,61,154,.38);
      box-shadow:0 16px 34px rgba(255,61,154,.14);
    }
    .mega-trigger{position:relative}
    .mega-panel{
      position:absolute;
      right:0;
      top:calc(100% + 14px);
      width:min(820px,calc(100vw - 48px));
      padding:18px;
      border-radius:30px;
      background:linear-gradient(145deg,rgba(31,13,40,.98),rgba(13,7,18,.98));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      opacity:0;
      visibility:hidden;
      transform:translateY(10px);
      transition:.22s ease;
    }
    .mega-trigger:hover .mega-panel,.mega-trigger:focus-within .mega-panel{
      opacity:1;
      visibility:visible;
      transform:translateY(0);
    }
    .mega-panel:before{
      content:"";
      position:absolute;
      inset:0;
      border-radius:inherit;
      pointer-events:none;
      background:linear-gradient(135deg,rgba(255,61,154,.16),transparent 38%,rgba(34,211,238,.12));
    }
    .mega-card{
      position:relative;
      display:block;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.1);
      transition:.22s ease;
      overflow:hidden;
    }
    .mega-card:hover,.mega-card:focus-visible{
      transform:translateY(-3px);
      border-color:rgba(34,211,238,.32);
      background:rgba(255,255,255,.075);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.34rem .68rem;
      border-radius:999px;
      font-size:.78rem;
      line-height:1;
      font-weight:900;
      border:1px solid rgba(255,255,255,.12);
    }
    .badge.safe{color:#d7fffb;background:rgba(34,211,238,.13);border-color:rgba(34,211,238,.3)}
    .badge.warn{color:#ffe8ba;background:rgba(245,158,11,.13);border-color:rgba(245,158,11,.35)}
    .badge.hot{color:#ffd6eb;background:rgba(255,61,154,.14);border-color:rgba(255,61,154,.36)}
    .badge.soft{color:#eee6ff;background:rgba(139,92,246,.16);border-color:rgba(139,92,246,.35)}
    .hero{
      position:relative;
      padding:72px 0 48px;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(360px,470px);
      gap:34px;
      align-items:stretch;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:22px;
    }
    .breadcrumb a,.breadcrumb span{
      display:inline-flex;
      align-items:center;
      min-height:32px;
      padding:4px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.1);
      color:var(--muted);
      font-size:.84rem;
      font-weight:800;
    }
    .hero-title{
      font-size:clamp(2.35rem,5.2vw,4.65rem);
      line-height:1.06;
      letter-spacing:-.04em;
      font-weight:950;
      margin:0;
    }
    .gradient-text{
      background:linear-gradient(90deg,#fff,var(--pink) 38%,var(--cyan));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      max-width:760px;
      margin-top:22px;
      color:var(--muted);
      font-size:1.06rem;
      line-height:1.9;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
    .meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .whitepaper-card{
      position:relative;
      min-height:100%;
      padding:22px;
      border-radius:34px;
      background:
        linear-gradient(145deg,rgba(255,255,255,.09),rgba(255,255,255,.035)),
        radial-gradient(circle at 100% 0,rgba(34,211,238,.18),transparent 35%),
        var(--card);
      border:1px solid rgba(255,255,255,.13);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .whitepaper-card:before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(135deg,rgba(255,61,154,.18),transparent 24%),
        repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 18px);
      opacity:.75;
    }
    .paper-cover{
      position:relative;
      padding:22px;
      border-radius:26px;
      min-height:250px;
      background:linear-gradient(150deg,#2b102f,#140818 58%,#07191c);
      border:1px solid rgba(255,255,255,.13);
      overflow:hidden;
    }
    .paper-cover:after{
      content:"";
      position:absolute;
      width:150px;
      height:150px;
      right:-40px;
      bottom:-40px;
      border-radius:42px;
      background:linear-gradient(135deg,var(--pink),var(--cyan));
      opacity:.18;
      transform:rotate(23deg);
    }
    .cover-title{position:relative;font-size:1.6rem;line-height:1.22;font-weight:950;margin-top:24px}
    .cover-list{position:relative;margin-top:22px;display:grid;gap:10px;color:var(--muted);font-size:.92rem}
    .cover-list li{display:flex;gap:9px;align-items:flex-start}
    .cover-list li:before{content:"";width:8px;height:8px;margin-top:9px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--cyan));flex:0 0 auto}
    .download-form{
      position:relative;
      margin-top:18px;
      display:grid;
      gap:12px;
    }
    .input{
      width:100%;
      min-height:50px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(6,3,9,.62);
      color:#fff;
      padding:0 16px;
      outline:none;
      transition:.22s ease;
    }
    .input::placeholder{color:#8f7b98}
    .input:focus{
      border-color:rgba(34,211,238,.5);
      box-shadow:0 0 0 4px rgba(34,211,238,.12);
    }
    .section{padding:70px 0}
    .section-tight{padding:44px 0}
    .section-head{
      display:grid;
      grid-template-columns:minmax(0,680px) 1fr;
      gap:22px;
      align-items:end;
      margin-bottom:30px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#ffd7eb;
      font-weight:900;
      letter-spacing:.06em;
      font-size:.82rem;
      margin-bottom:12px;
    }
    .eyebrow:before{
      content:"";
      width:28px;
      height:3px;
      border-radius:99px;
      background:linear-gradient(90deg,var(--pink),var(--cyan));
    }
    .section-title{
      margin:0;
      font-weight:950;
      line-height:1.12;
      letter-spacing:-.03em;
      font-size:clamp(1.75rem,3.8vw,3rem);
    }
    .section-desc{color:var(--muted);margin:0;font-size:1rem}
    .filter-panel{
      padding:18px;
      border-radius:30px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.1);
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:16px;
      align-items:center;
    }
    .tag-scroll{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .filter-tag{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.1);
      font-size:.92rem;
      font-weight:850;
      transition:.2s ease;
    }
    .filter-tag:hover,.filter-tag:focus-visible{
      color:#fff;
      border-color:rgba(255,61,154,.34);
      background:rgba(255,61,154,.11);
    }
    .filter-tag.current{
      color:#fff;
      background:linear-gradient(135deg,var(--pink),var(--violet) 55%,var(--cyan));
      box-shadow:0 16px 38px rgba(255,61,154,.18);
    }
    .card-grid{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .info-card{
      position:relative;
      padding:24px;
      border-radius:30px;
      background:linear-gradient(145deg,rgba(255,255,255,.065),rgba(255,255,255,.025));
      border:1px solid rgba(255,255,255,.11);
      overflow:hidden;
      min-height:230px;
      transition:.24s ease;
    }
    .info-card:before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:0;
      height:3px;
      background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));
      opacity:.88;
    }
    .info-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,211,238,.28);
      box-shadow:0 22px 60px rgba(255,61,154,.13);
    }
    .info-card.large{grid-column:span 7;min-height:310px}
    .info-card.mid{grid-column:span 5}
    .info-card.small{grid-column:span 4}
    .status-dot{
      width:10px;height:10px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 0 6px rgba(52,211,153,.1);
      display:inline-block;
    }
    .card-title{
      font-size:1.35rem;
      font-weight:950;
      line-height:1.25;
      margin:16px 0 10px;
    }
    .card-text{color:var(--muted);margin:0}
    .card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .card-cta{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:22px;
      color:#fff;
      font-weight:950;
    }
    .card-cta span{transition:.2s ease}
    .card-cta:hover span{transform:translateX(4px)}
    .step-wrap{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      position:relative;
    }
    .step-card{
      padding:24px;
      border-radius:30px;
      background:linear-gradient(150deg,rgba(33,11,37,.86),rgba(12,6,17,.82));
      border:1px solid rgba(255,255,255,.11);
      box-shadow:0 18px 52px rgba(0,0,0,.18);
      position:relative;
    }
    .step-num{
      display:inline-flex;
      width:58px;
      height:42px;
      align-items:center;
      justify-content:center;
      border-radius:16px;
      background:rgba(255,61,154,.14);
      border:1px solid rgba(255,61,154,.28);
      color:#ffd6eb;
      font-weight:950;
      margin-bottom:18px;
    }
    .energy-bar{
      height:5px;
      margin-top:20px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));
      opacity:.72;
    }
    .proof-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
      align-items:stretch;
    }
    .proof-main,.proof-side{
      border-radius:34px;
      border:1px solid rgba(255,255,255,.11);
      background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
      padding:28px;
      overflow:hidden;
      position:relative;
    }
    .proof-main:after{
      content:"";
      position:absolute;
      right:-80px;
      top:-80px;
      width:240px;
      height:240px;
      border-radius:52px;
      background:linear-gradient(135deg,var(--pink),var(--cyan));
      opacity:.13;
      transform:rotate(28deg);
    }
    .metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .metric{
      padding:18px 14px;
      border-radius:22px;
      background:rgba(0,0,0,.22);
      border:1px solid rgba(255,255,255,.1);
    }
    .metric strong{display:block;font-size:1.8rem;line-height:1;font-weight:950}
    .metric span{display:block;color:var(--weak);font-size:.82rem;margin-top:8px}
    .tip-card{
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.1);
    }
    .tip-list{display:grid;gap:13px;margin-top:18px;color:var(--muted)}
    .tip-list li{display:flex;gap:12px}
    .tip-list li:before{
      content:"";
      width:9px;height:9px;border-radius:50%;
      background:linear-gradient(135deg,var(--pink),var(--cyan));
      margin-top:10px;flex:0 0 auto;
    }
    .notice-card{
      display:grid;
      grid-template-columns:1fr 330px;
      gap:22px;
      align-items:center;
      padding:30px;
      border-radius:34px;
      background:
        radial-gradient(circle at 94% 18%,rgba(245,158,11,.18),transparent 30%),
        linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
      border:1px solid rgba(245,158,11,.25);
      box-shadow:0 22px 70px rgba(245,158,11,.08);
    }
    .notice-box{
      padding:20px;
      border-radius:24px;
      background:rgba(0,0,0,.22);
      border:1px solid rgba(255,255,255,.1);
    }
    .faq-layout{
      display:grid;
      grid-template-columns:360px 1fr;
      gap:24px;
      align-items:start;
    }
    .faq-list{display:grid;gap:12px}
    details{
      border-radius:24px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.1);
      overflow:hidden;
      transition:.2s ease;
    }
    details[open]{
      border-color:rgba(34,211,238,.35);
      background:rgba(255,255,255,.07);
      box-shadow:0 18px 42px rgba(34,211,238,.08);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:950;
      display:flex;
      justify-content:space-between;
      gap:18px;
      outline:none;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;
      height:28px;
      flex:0 0 auto;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(255,61,154,.14);
      color:#ffd6eb;
      transition:.2s ease;
    }
    details[open] summary:after{content:"";transform:rotate(45deg);background:linear-gradient(135deg,var(--pink),var(--cyan))}
    summary:focus-visible{box-shadow:inset 0 0 0 3px rgba(34,211,238,.22)}
    details p{margin:0;padding:0 20px 20px;color:var(--muted)}
    .cta-box{
      position:relative;
      padding:36px;
      border-radius:38px;
      background:
        radial-gradient(circle at 8% 20%,rgba(255,61,154,.28),transparent 34%),
        radial-gradient(circle at 92% 12%,rgba(34,211,238,.22),transparent 28%),
        linear-gradient(135deg,#2a0d30,#0d0712);
      border:1px solid rgba(255,255,255,.14);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .cta-box:before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background:linear-gradient(115deg,transparent 0 60%,rgba(255,255,255,.08) 60.5%,transparent 61.2%);
    }
    .cta-inner{position:relative;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}
    .check-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;color:var(--muted)}
    .check-list span{
      display:inline-flex;
      gap:8px;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      font-size:.9rem;
    }
    .footer{
      margin-top:30px;
      border-top:1px solid rgba(255,255,255,.1);
      background:
        linear-gradient(180deg,rgba(9,6,13,.52),rgba(5,3,8,.96)),
        radial-gradient(circle at 20% 0,rgba(255,61,154,.13),transparent 32%);
      position:relative;
    }
    .footer:before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;
      height:2px;
      background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));
      opacity:.76;
    }
    .footer a:hover{color:#fff}
    @media (max-width:1024px){
      .hero-grid,.section-head,.filter-panel,.proof-layout,.notice-card,.faq-layout,.cta-inner{grid-template-columns:1fr}
      .whitepaper-card{max-width:620px}
      .info-card.large,.info-card.mid{grid-column:span 12}
      .info-card.small{grid-column:span 6}
      .step-wrap{grid-template-columns:1fr}
      .metric-row{grid-template-columns:1fr 1fr 1fr}
    }
    @media (max-width:768px){
      .desktop-nav{display:none!important}
      .mobile-menu{display:block}
      .mobile-drawer{display:none}
      #menu-toggle:checked + .mobile-drawer{display:block}
      .brand-text{font-size:.95rem}
      .hero{padding:48px 0 28px}
      .section{padding:52px 0}
      .tag-scroll{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}
      .filter-tag{flex:0 0 auto}
      .info-card.small{grid-column:span 12}
      .metric-row{grid-template-columns:1fr}
      .hero-actions .btn,.cta-inner .btn{width:100%}
      .notice-card,.cta-box{padding:24px}
    }
    @media (max-width:520px){
      .site-container{width:min(100% - 22px,1240px)}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .hero-title{font-size:2.22rem}
      .whitepaper-card,.paper-cover,.info-card,.proof-main,.proof-side,.notice-card,.cta-box{border-radius:24px}
      .paper-cover{padding:18px}
      .section-head{margin-bottom:22px}
      summary{padding:16px}
      details p{padding:0 16px 16px}
    }