/* roulang page: index */
:root{
      --bg:#050b18;
      --bg-2:#07111f;
      --bg-3:#081827;
      --panel:rgba(15,23,42,.62);
      --panel-strong:rgba(8,18,34,.82);
      --panel-soft:rgba(30,41,59,.36);
      --text:#f8fafc;
      --muted:#cbd5e1;
      --subtle:#94a3b8;
      --line:rgba(148,163,184,.18);
      --line-strong:rgba(45,212,255,.48);
      --cyan:#2dd4ff;
      --blue:#38bdf8;
      --deep-blue:#3b82f6;
      --violet:#7c3aed;
      --purple:#8b5cf6;
      --teal:#22d3ee;
      --amber:#f59e0b;
      --radius-sm:12px;
      --radius-md:20px;
      --radius-lg:28px;
      --radius-xl:36px;
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --glow:0 0 42px rgba(45,212,255,.18);
      --glow-strong:0 0 38px rgba(45,212,255,.38);
      --container:1240px;
      --ease:220ms ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 6%, rgba(45,212,255,.16), transparent 32%),
        radial-gradient(circle at 80% 10%, rgba(124,58,237,.18), transparent 34%),
        radial-gradient(circle at 50% 80%, rgba(59,130,246,.12), transparent 42%),
        linear-gradient(180deg,var(--bg),var(--bg-2) 48%,#030816 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(148,163,184,.045) 1px,transparent 1px),
        linear-gradient(90deg,rgba(148,163,184,.045) 1px,transparent 1px);
      background-size:46px 46px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.78),transparent 78%);
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.42;
      background:
        repeating-linear-gradient(0deg,rgba(255,255,255,.025) 0 1px,transparent 1px 4px),
        radial-gradient(circle at 30% 30%,rgba(255,255,255,.04),transparent 28%);
      mix-blend-mode:screen;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(100% - 64px,var(--container));margin-inline:auto}
    .section{padding:92px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(15,23,42,.52);
      color:var(--muted);
      font-size:14px;
      letter-spacing:.02em;
      backdrop-filter:blur(14px);
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 18px var(--cyan);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:28px;
      margin-bottom:30px;
    }
    .section-title{
      font-size:clamp(28px,3.2vw,42px);
      line-height:1.18;
      letter-spacing:-.03em;
      max-width:760px;
    }
    .section-desc{
      max-width:560px;
      color:var(--muted);
      font-size:16px;
    }
    .gradient-text{
      color:transparent;
      background:linear-gradient(90deg,#f8fafc 0%,#7dd3fc 42%,#a78bfa 78%,#f8fafc 100%);
      -webkit-background-clip:text;
      background-clip:text;
    }

    .site-header{
      position:sticky;
      top:18px;
      z-index:50;
      padding:18px 0 0;
    }
    .nav-shell{
      display:flex;
      align-items:center;
      gap:16px;
      min-height:82px;
      padding:12px;
      border:1px solid rgba(148,163,184,.22);
      border-radius:30px;
      background:rgba(5,11,24,.72);
      box-shadow:0 20px 60px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.05);
      backdrop-filter:blur(22px) saturate(145%);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:230px;
      padding:10px 12px;
      border-radius:22px;
      transition:var(--ease);
    }
    .brand-mark{
      position:relative;
      width:42px;height:42px;border-radius:16px;
      background:linear-gradient(135deg,rgba(45,212,255,.9),rgba(124,58,237,.78));
      box-shadow:0 0 34px rgba(45,212,255,.34);
      overflow:hidden;
    }
    .brand-mark::before{
      content:"";
      position:absolute;
      inset:8px 10px;
      border:1px solid rgba(255,255,255,.6);
      border-left-color:transparent;
      border-bottom-color:transparent;
      border-radius:50%;
      transform:rotate(-30deg);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-name{font-weight:800;font-size:15px;letter-spacing:.01em}
    .brand-sub{font-size:12px;color:var(--subtle);margin-top:4px}
    .brand:hover{background:rgba(30,41,59,.42)}
    .nav-menu{
      flex:1;
      display:flex;
      gap:10px;
      align-items:center;
      justify-content:center;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:center;
      gap:10px;
      min-width:150px;
      padding:11px 13px;
      border:1px solid transparent;
      border-radius:20px;
      background:rgba(15,23,42,.45);
      color:var(--muted);
      transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease);
    }
    .nav-icon{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      color:var(--cyan);
      background:rgba(45,212,255,.09);
      border:1px solid rgba(45,212,255,.16);
      flex:0 0 auto;
    }
    .nav-copy{display:flex;flex-direction:column;line-height:1.2}
    .nav-label{font-size:14px;font-weight:700}
    .nav-note{font-size:11px;color:var(--subtle);margin-top:3px;white-space:nowrap}
    .nav-item:hover,.nav-item:focus-visible{
      transform:translateY(-2px);
      color:var(--text);
      border-color:rgba(45,212,255,.38);
      background:rgba(30,41,59,.62);
      box-shadow:var(--glow);
      outline:none;
    }
    .nav-item.active{
      color:var(--text);
      border-color:rgba(45,212,255,.58);
      background:linear-gradient(135deg,rgba(45,212,255,.14),rgba(124,58,237,.14));
      box-shadow:inset 0 0 24px rgba(45,212,255,.08), var(--glow);
    }
    .nav-item.active::after{
      content:"";
      position:absolute;
      right:14px;bottom:10px;
      width:6px;height:6px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px var(--cyan);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:116px;
      padding:13px 18px;
      border-radius:18px;
      font-weight:800;
      color:#02111d;
      background:linear-gradient(135deg,var(--cyan),var(--deep-blue) 55%,var(--purple));
      box-shadow:0 0 30px rgba(45,212,255,.35);
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-cta:hover,.nav-cta:focus-visible{transform:translateY(-2px);box-shadow:0 0 42px rgba(45,212,255,.48);outline:2px solid rgba(125,211,252,.35);outline-offset:3px}
    .nav-cta:active{transform:translateY(0) scale(.99)}
    .menu-toggle{
      display:none;
      width:46px;height:46px;border-radius:16px;
      color:var(--text);
      background:rgba(15,23,42,.74);
      border:1px solid var(--line);
    }

    .hero{
      position:relative;
      padding:78px 0 54px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(380px,.88fr);
      gap:38px;
      align-items:center;
    }
    .hero-copy{padding-top:18px}
    h1{
      margin-top:20px;
      max-width:760px;
      font-size:clamp(34px,5vw,62px);
      line-height:1.08;
      letter-spacing:-.055em;
    }
    .hero-lead{
      margin-top:22px;
      max-width:680px;
      color:var(--muted);
      font-size:clamp(17px,1.55vw,20px);
      line-height:1.85;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:32px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 20px;
      border-radius:16px;
      font-weight:800;
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease),color var(--ease);
      user-select:none;
    }
    .btn-primary{
      color:#03101e;
      background:linear-gradient(135deg,var(--cyan),var(--blue) 46%,var(--purple));
      box-shadow:0 0 34px rgba(45,212,255,.34), inset 0 1px 0 rgba(255,255,255,.32);
    }
    .btn-secondary{
      color:var(--text);
      border:1px solid rgba(148,163,184,.24);
      background:rgba(15,23,42,.52);
      backdrop-filter:blur(14px);
    }
    .btn-ghost{
      color:var(--muted);
      border:1px solid rgba(148,163,184,.16);
      background:rgba(15,23,42,.28);
    }
    .btn:hover,.btn:focus-visible{transform:translateY(-2px);outline:none}
    .btn-primary:hover,.btn-primary:focus-visible{box-shadow:0 0 48px rgba(45,212,255,.48)}
    .btn-secondary:hover,.btn-secondary:focus-visible,.btn-ghost:hover,.btn-ghost:focus-visible{border-color:rgba(45,212,255,.42);background:rgba(30,41,59,.6);box-shadow:var(--glow)}
    .btn:active{transform:translateY(0) scale(.99)}

    .hero-proof{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:34px;
      max-width:660px;
    }
    .proof-card{
      padding:14px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(15,23,42,.46);
      backdrop-filter:blur(14px);
    }
    .proof-num{
      display:block;
      color:var(--cyan);
      font-weight:900;
      font-size:22px;
      line-height:1.2;
    }
    .proof-label{font-size:13px;color:var(--subtle);margin-top:4px}

    .cover-card{
      position:relative;
      min-height:560px;
      border:1px solid rgba(148,163,184,.2);
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:
        linear-gradient(145deg,rgba(45,212,255,.08),rgba(124,58,237,.13)),
        rgba(8,18,34,.72);
      box-shadow:var(--shadow),var(--glow);
      backdrop-filter:blur(18px) saturate(140%);
      isolation:isolate;
    }
    .cover-card::before{
      content:"";
      position:absolute;
      inset:22px;
      border-radius:30px;
      background:
        radial-gradient(ellipse at 52% 38%,rgba(45,212,255,.24),transparent 18%),
        radial-gradient(ellipse at 66% 63%,rgba(139,92,246,.26),transparent 23%),
        linear-gradient(115deg,transparent 10%,rgba(255,255,255,.08) 38%,transparent 42%),
        linear-gradient(155deg,rgba(148,163,184,.04),transparent 55%);
      border:1px solid rgba(255,255,255,.08);
      filter:saturate(120%);
      z-index:-1;
    }
    .cover-line{
      position:absolute;
      left:50%;
      top:50%;
      width:250px;
      height:390px;
      transform:translate(-50%,-50%) rotate(-9deg);
      border:2px solid rgba(125,211,252,.48);
      border-left-color:rgba(139,92,246,.45);
      border-bottom-color:transparent;
      border-radius:48% 52% 42% 58% / 38% 40% 60% 62%;
      box-shadow:0 0 60px rgba(45,212,255,.18);
      opacity:.75;
    }
    .cover-line::before{
      content:"";
      position:absolute;
      left:56px;top:42px;
      width:110px;height:160px;
      border-top:2px solid rgba(248,250,252,.4);
      border-right:2px solid rgba(45,212,255,.34);
      border-radius:48% 52% 45% 55%;
      transform:rotate(20deg);
    }
    .cover-shade{
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(5,11,24,.15),rgba(5,11,24,.68));
      z-index:1;
    }
    .cover-top,.cover-bottom{
      position:absolute;
      z-index:2;
      left:22px;right:22px;
      display:flex;
      justify-content:space-between;
      gap:14px;
      align-items:center;
    }
    .cover-top{top:22px}
    .cover-bottom{bottom:22px;align-items:end}
    .tag,.badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.2);
      background:rgba(15,23,42,.56);
      color:var(--muted);
      font-size:13px;
      backdrop-filter:blur(12px);
      white-space:nowrap;
    }
    .badge.hot{border-color:rgba(45,212,255,.38);color:#e0f7ff;background:rgba(45,212,255,.1)}
    .badge.warn{border-color:rgba(245,158,11,.34);color:#fde68a;background:rgba(245,158,11,.08)}
    .cover-title{
      max-width:280px;
      font-size:28px;
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .cover-meta{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
      min-width:190px;
    }
    .mini-stat{
      padding:12px;
      border-radius:18px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(2,6,23,.42);
    }
    .mini-stat strong{display:block;color:var(--cyan);font-size:20px}
    .mini-stat span{font-size:12px;color:var(--subtle)}

    .catalog-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .catalog-card{
      position:relative;
      min-height:180px;
      padding:20px;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:linear-gradient(145deg,rgba(15,23,42,.58),rgba(8,18,34,.72));
      box-shadow:0 18px 54px rgba(0,0,0,.24);
      overflow:hidden;
      transition:var(--ease);
    }
    .catalog-card::before{
      content:"";
      position:absolute;
      inset:auto -30% -55% -30%;
      height:120px;
      background:radial-gradient(ellipse,rgba(45,212,255,.18),transparent 68%);
      transition:var(--ease);
    }
    .catalog-card:hover,.catalog-card:focus-within{
      transform:translateY(-5px);
      border-color:rgba(45,212,255,.5);
      box-shadow:var(--shadow),var(--glow);
    }
    .catalog-card:hover::before{opacity:1;transform:translateY(-18px)}
    .catalog-num{
      display:inline-grid;
      place-items:center;
      width:38px;height:38px;
      border-radius:14px;
      color:var(--cyan);
      background:rgba(45,212,255,.1);
      border:1px solid rgba(45,212,255,.22);
      font-weight:900;
      margin-bottom:18px;
      box-shadow:0 0 18px rgba(45,212,255,.14);
    }
    .catalog-card h3{font-size:19px;line-height:1.3;margin-bottom:10px}
    .catalog-card p{color:var(--subtle);font-size:14px;line-height:1.75}
    .catalog-foot{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}

    .featured-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:20px;
      align-items:stretch;
    }
    .feature-large,.item-card,.category-card,.recommend-card,.standard-card,.faq-item,.cta-panel,.subscribe-card{
      border:1px solid var(--line);
      background:rgba(15,23,42,.56);
      box-shadow:0 20px 60px rgba(0,0,0,.24);
      backdrop-filter:blur(18px) saturate(140%);
    }
    .feature-large{
      min-height:510px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      position:relative;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      padding:28px;
      transition:var(--ease);
    }
    .art-bg{
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 68% 26%,rgba(45,212,255,.2),transparent 20%),
        radial-gradient(circle at 30% 72%,rgba(124,58,237,.22),transparent 28%),
        linear-gradient(135deg,rgba(255,255,255,.08),transparent 30%),
        #081827;
      overflow:hidden;
      z-index:-2;
    }
    .art-bg::before{
      content:"";
      position:absolute;
      width:320px;height:460px;
      right:10%;top:12%;
      border:2px solid rgba(125,211,252,.35);
      border-right-color:rgba(139,92,246,.34);
      border-bottom-color:transparent;
      border-radius:49% 51% 48% 52% / 35% 38% 62% 65%;
      transform:rotate(12deg);
      filter:blur(.1px);
    }
    .art-bg::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(5,11,24,.05),rgba(5,11,24,.78));
    }
    .feature-large:hover{
      transform:translateY(-5px);
      border-color:rgba(45,212,255,.5);
      box-shadow:var(--shadow),var(--glow);
    }
    .feature-large h3{font-size:30px;line-height:1.22;max-width:560px}
    .feature-large p{margin-top:12px;color:var(--muted);max-width:620px}
    .feature-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
    .item-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
    }
    .item-card{
      position:relative;
      min-height:245px;
      border-radius:var(--radius-md);
      overflow:hidden;
      padding:18px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      transition:var(--ease);
    }
    .item-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 70% 20%,rgba(45,212,255,.14),transparent 24%),
        linear-gradient(135deg,rgba(255,255,255,.055),transparent 42%);
      z-index:-1;
    }
    .item-card:hover,.item-card:focus-within{
      transform:translateY(-5px);
      border-color:rgba(45,212,255,.48);
      box-shadow:var(--shadow),var(--glow);
    }
    .item-card h3{font-size:19px;line-height:1.35;margin:16px 0 8px}
    .item-card p{color:var(--subtle);font-size:14px;line-height:1.7}
    .card-link{
      margin-top:16px;
      color:#dff8ff;
      font-weight:800;
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .card-link::after{content:"→";transition:var(--ease)}
    .card-link:hover::after{transform:translateX(4px)}

    .category-panel{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:22px;
    }
    .category-card{
      position:relative;
      min-height:310px;
      padding:26px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      transition:var(--ease);
    }
    .category-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 78% 25%,rgba(45,212,255,.2),transparent 20%),
        linear-gradient(145deg,rgba(124,58,237,.1),transparent 46%);
      z-index:-1;
    }
    .category-card:hover{
      transform:translateY(-5px);
      border-color:rgba(45,212,255,.48);
      box-shadow:var(--shadow),var(--glow);
    }
    .category-card h3{font-size:28px;line-height:1.22;margin:22px 0 12px}
    .category-card p{color:var(--muted);max-width:560px}
    .category-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .category-index{
      font-size:52px;
      font-weight:900;
      line-height:1;
      color:rgba(125,211,252,.16);
      letter-spacing:-.08em;
    }

    .standard-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      align-items:start;
    }
    .standard-intro{
      position:sticky;
      top:126px;
      padding:28px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(8,18,34,.64);
      box-shadow:var(--shadow);
    }
    .standard-list{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .standard-card{
      padding:22px;
      border-radius:var(--radius-md);
      transition:var(--ease);
    }
    .standard-card:hover{
      transform:translateY(-4px);
      border-color:rgba(45,212,255,.38);
      box-shadow:var(--glow);
    }
    .standard-card .icon{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:rgba(45,212,255,.1);
      color:var(--cyan);
      border:1px solid rgba(45,212,255,.18);
      margin-bottom:16px;
    }
    .standard-card h3{font-size:20px;margin-bottom:8px}
    .standard-card p{color:var(--subtle);font-size:14px}

    .recommend-row{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:18px;
    }
    .recommend-card{
      min-height:210px;
      padding:22px;
      border-radius:var(--radius-md);
      position:relative;
      overflow:hidden;
      transition:var(--ease);
    }
    .recommend-card::before{
      content:"";
      position:absolute;
      right:-50px;top:-50px;
      width:160px;height:160px;
      background:radial-gradient(circle,rgba(45,212,255,.18),transparent 70%);
    }
    .recommend-card:hover{
      transform:translateY(-4px);
      border-color:rgba(45,212,255,.38);
      box-shadow:var(--glow);
    }
    .recommend-card h3{font-size:22px;margin:16px 0 8px}
    .recommend-card p{color:var(--subtle);font-size:14px}
    .tag-cloud{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}

    .faq-list{
      display:grid;
      gap:14px;
      max-width:940px;
      margin-inline:auto;
    }
    .faq-item{
      border-radius:20px;
      overflow:hidden;
      transition:var(--ease);
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:20px 22px;
      color:var(--text);
      background:transparent;
      text-align:left;
      font-weight:800;
    }
    .faq-question span:last-child{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      color:var(--cyan);
      background:rgba(45,212,255,.09);
      transition:transform var(--ease);
      flex:0 0 auto;
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      color:var(--muted);
      transition:max-height 240ms ease;
    }
    .faq-answer p{padding:0 22px 20px}
    .faq-item.open{
      border-color:rgba(45,212,255,.42);
      background:rgba(30,41,59,.46);
      box-shadow:var(--glow);
    }
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}

    .subscribe-card{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      padding:26px;
      border-radius:var(--radius-lg);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-size:13px;color:var(--muted);font-weight:700}
    input,select,textarea{
      width:100%;
      min-height:48px;
      border:1px solid rgba(148,163,184,.2);
      border-radius:14px;
      padding:12px 14px;
      background:rgba(2,6,23,.36);
      color:var(--text);
      outline:none;
      transition:var(--ease);
    }
    textarea{min-height:104px;resize:vertical}
    input::placeholder,textarea::placeholder{color:rgba(148,163,184,.62)}
    input:focus,select:focus,textarea:focus{
      border-color:rgba(45,212,255,.62);
      box-shadow:0 0 0 4px rgba(45,212,255,.12);
      background:rgba(8,18,34,.72);
    }
    .form-note{font-size:13px;color:var(--subtle);margin-top:12px}
    .success{
      display:none;
      margin-top:12px;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(45,212,255,.26);
      background:rgba(45,212,255,.08);
      color:#dff8ff;
      font-size:14px;
    }

    .cta-panel{
      position:relative;
      display:grid;
      grid-template-columns:.75fr 1fr auto;
      gap:24px;
      align-items:center;
      padding:30px;
      border-radius:var(--radius-xl);
      overflow:hidden;
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 72% 50%,rgba(45,212,255,.18),transparent 28%),
        linear-gradient(95deg,rgba(124,58,237,.16),transparent 42%);
      z-index:-1;
    }
    .cta-panel h2{font-size:clamp(24px,2.4vw,34px);line-height:1.2}
    .cta-panel p{color:var(--muted)}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}

    .site-footer{
      margin-top:70px;
      border-top:1px solid var(--line);
      background:
        radial-gradient(circle at 20% 0%,rgba(45,212,255,.08),transparent 28%),
        rgba(2,6,23,.62);
      padding:54px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .7fr .7fr .9fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .footer-brand .brand-mark{width:38px;height:38px}
    .footer-title{font-weight:900}
    .footer-desc{color:var(--subtle);max-width:360px;font-size:14px}
    .footer-col h3{font-size:15px;margin-bottom:14px;color:#e2e8f0}
    .footer-links{display:grid;gap:10px}
    .footer-links a,.footer-links span{
      color:var(--subtle);
      font-size:14px;
      transition:var(--ease);
    }
    .footer-links a:hover,.footer-links a:focus-visible{
      color:var(--cyan);
      outline:none;
      transform:translateX(3px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.12);
      color:rgba(148,163,184,.78);
      font-size:13px;
    }

    @media (max-width:1120px){
      .container{width:min(100% - 48px,var(--container))}
      .nav-shell{align-items:flex-start}
      .nav-menu{justify-content:flex-start;overflow-x:auto;padding-bottom:2px}
      .nav-item{min-width:122px}
      .nav-note{display:none}
      .hero-grid{grid-template-columns:1fr;gap:28px}
      .cover-card{min-height:460px}
      .catalog-grid{grid-template-columns:repeat(2,1fr)}
      .featured-layout,.standard-wrap,.subscribe-card{grid-template-columns:1fr}
      .standard-intro{position:relative;top:auto}
      .recommend-row{grid-template-columns:1fr 1fr}
      .recommend-card:first-child{grid-column:1 / -1}
      .cta-panel{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:767px){
      .container{width:min(100% - 32px,var(--container))}
      .section{padding:62px 0}
      .section-tight{padding:44px 0}
      .site-header{top:10px;padding-top:10px}
      .nav-shell{
        min-height:68px;
        border-radius:24px;
        padding:10px;
        flex-wrap:wrap;
      }
      .brand{min-width:0;flex:1;padding:8px}
      .brand-name{font-size:14px;max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
      .brand-sub{display:none}
      .menu-toggle{display:grid;place-items:center}
      .nav-cta{display:none}
      .nav-menu{
        display:none;
        order:3;
        width:100%;
        flex-direction:column;
        overflow:visible;
        padding-top:10px;
      }
      .nav-menu.open{display:flex}
      .nav-item{width:100%;min-width:0}
      .hero{padding:42px 0 24px}
      .hero-actions .btn{width:100%}
      .hero-proof{grid-template-columns:1fr}
      .cover-card{min-height:390px;border-radius:28px}
      .cover-top,.cover-bottom{left:16px;right:16px;flex-direction:column;align-items:flex-start}
      .cover-title{font-size:23px}
      .cover-meta{width:100%;grid-template-columns:1fr 1fr}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .catalog-grid,.item-grid,.category-panel,.standard-list,.recommend-row,.form-grid,.footer-grid{grid-template-columns:1fr}
      .feature-large{min-height:420px;padding:22px}
      .feature-large h3{font-size:24px}
      .category-card{min-height:auto}
      .subscribe-card,.cta-panel{padding:20px;border-radius:24px}
      .field.full{grid-column:auto}
      .footer-bottom{flex-direction:column}
    }

    @media (max-width:520px){
      h1{font-size:32px}
      .eyebrow{font-size:12px}
      .proof-card,.catalog-card,.item-card,.standard-card,.recommend-card{border-radius:18px}
      .cover-line{width:190px;height:310px}
      .tag,.badge{font-size:12px}
      .category-actions,.cta-actions{flex-direction:column}
      .category-actions .btn,.cta-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --bg:#050B18;
      --bg-soft:#07111F;
      --panel:rgba(15,23,42,.62);
      --panel-strong:rgba(8,18,34,.82);
      --line:rgba(148,163,184,.18);
      --line-bright:rgba(45,212,255,.46);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --subtle:#94A3B8;
      --blue:#2DD4FF;
      --blue2:#38BDF8;
      --royal:#3B82F6;
      --violet:#7C3AED;
      --cyan:#22D3EE;
      --amber:#F59E0B;
      --radius-sm:12px;
      --radius:22px;
      --radius-lg:32px;
      --shadow:0 24px 80px rgba(0,0,0,.38);
      --glow:0 0 36px rgba(45,212,255,.22);
      --container:1220px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 8%, rgba(45,212,255,.16), transparent 34%),
        radial-gradient(circle at 78% 20%, rgba(124,58,237,.18), transparent 32%),
        radial-gradient(circle at 50% 90%, rgba(34,211,238,.10), transparent 35%),
        linear-gradient(180deg,#050B18 0%,#07111F 48%,#050B18 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(148,163,184,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,163,184,.035) 1px, transparent 1px);
      background-size:38px 38px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),rgba(0,0,0,.2));
      z-index:-2;
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:radial-gradient(circle at 50% 20%, rgba(255,255,255,.05), transparent 28%);
      opacity:.55;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(100% - 64px,var(--container));margin:0 auto}
    .site-header{
      position:sticky;
      top:18px;
      z-index:50;
      padding:18px 0 8px;
    }
    .nav-shell{
      min-height:84px;
      display:flex;
      align-items:center;
      gap:16px;
      padding:12px;
      border:1px solid rgba(45,212,255,.22);
      border-radius:30px;
      background:rgba(5,11,24,.76);
      backdrop-filter:blur(22px) saturate(150%);
      box-shadow:0 18px 60px rgba(0,0,0,.36), inset 0 1px 0 rgba(255,255,255,.08);
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:270px;padding:8px 10px;border-radius:22px;transition:var(--ease)}
    .brand:hover{background:rgba(148,163,184,.08)}
    .brand-mark{
      width:42px;height:42px;border-radius:16px;display:inline-block;
      background:
        radial-gradient(circle at 32% 24%,#fff 0 5%,transparent 8%),
        linear-gradient(135deg,var(--blue),var(--royal) 48%,var(--violet));
      box-shadow:0 0 28px rgba(45,212,255,.35);
      position:relative;flex:0 0 auto;
    }
    .brand-mark:after{
      content:"";position:absolute;inset:10px 12px;border:1px solid rgba(255,255,255,.58);border-radius:50% 50% 42% 42%;transform:rotate(-18deg);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-name{font-weight:800;letter-spacing:.01em;font-size:16px}
    .brand-sub{font-size:12px;color:var(--subtle);margin-top:4px}
    .nav-menu{display:flex;align-items:center;gap:10px;flex:1}
    .nav-item{
      display:flex;align-items:center;gap:10px;
      padding:10px 12px;border-radius:18px;
      border:1px solid rgba(148,163,184,.14);
      background:rgba(15,23,42,.44);
      min-width:150px;transition:var(--ease);
      position:relative;
    }
    .nav-item:hover,.nav-item:focus-visible{border-color:var(--line-bright);transform:translateY(-2px);background:rgba(15,23,42,.76);outline:none}
    .nav-item.active{border-color:rgba(45,212,255,.56);background:linear-gradient(135deg,rgba(45,212,255,.16),rgba(124,58,237,.13));box-shadow:var(--glow)}
    .nav-item.active:after{content:"";position:absolute;right:13px;bottom:9px;width:6px;height:6px;border-radius:50%;background:var(--blue);box-shadow:0 0 14px var(--blue)}
    .nav-icon{width:28px;height:28px;display:grid;place-items:center;border-radius:10px;background:rgba(45,212,255,.12);color:var(--blue)}
    .nav-copy{display:flex;flex-direction:column;line-height:1.2}
    .nav-label{font-size:14px;font-weight:750}
    .nav-note{font-size:11px;color:var(--subtle);margin-top:4px}
    .nav-cta,.btn-primary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:16px;
      background:linear-gradient(135deg,var(--blue),var(--royal) 55%,var(--violet));
      color:white;font-weight:800;box-shadow:0 0 28px rgba(45,212,255,.30);
      transition:var(--ease);white-space:nowrap;
    }
    .nav-cta:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 42px rgba(45,212,255,.44)}
    .nav-cta:active,.btn-primary:active,.btn-secondary:active,.card:active{transform:translateY(0) scale(.99)}
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:16px;
      color:var(--text);background:rgba(15,23,42,.58);
      border:1px solid rgba(148,163,184,.24);
      transition:var(--ease);font-weight:760;
    }
    .btn-secondary:hover,.btn-secondary:focus-visible{border-color:var(--line-bright);background:rgba(15,23,42,.82);outline:none;transform:translateY(-2px)}
    .menu-toggle{
      display:none;margin-left:auto;width:46px;height:46px;border-radius:16px;
      color:var(--text);background:rgba(15,23,42,.78);border:1px solid var(--line);
    }
    main{padding-top:34px}
    .section{padding:92px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .eyebrow,.badge{
      display:inline-flex;align-items:center;gap:8px;
      border:1px solid rgba(45,212,255,.28);
      background:rgba(45,212,255,.09);
      color:#DFF8FF;border-radius:999px;
      padding:7px 12px;font-size:13px;font-weight:700;
    }
    .badge.alt{border-color:rgba(124,58,237,.28);background:rgba(124,58,237,.12)}
    .badge.warn{border-color:rgba(245,158,11,.32);background:rgba(245,158,11,.10);color:#FFE7B3}
    h1,h2,h3{line-height:1.18;letter-spacing:-.02em}
    h1{font-size:clamp(30px,5vw,58px);max-width:820px;margin:18px 0 18px}
    h2{font-size:clamp(26px,3.4vw,40px)}
    h3{font-size:22px}
    p{color:var(--muted)}
    .lead{font-size:18px;max-width:760px;color:#D8E4F2}
    .hero{
      padding:70px 0 54px;
    }
    .hero-banner{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(45,212,255,.24);
      border-radius:36px;
      background:
        linear-gradient(100deg,rgba(5,11,24,.92) 0%,rgba(7,17,31,.76) 50%,rgba(9,28,52,.66) 100%),
        radial-gradient(circle at 82% 18%,rgba(45,212,255,.24),transparent 30%);
      box-shadow:var(--shadow),var(--glow);
      padding:44px;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:32px;
      min-height:470px;
    }
    .hero-banner:before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(120deg,transparent 0 42%,rgba(255,255,255,.08) 43%,transparent 45%),
        radial-gradient(ellipse at 80% 55%, rgba(45,212,255,.18), transparent 34%);
      pointer-events:none;
    }
    .hero-content,.visual-panel{position:relative;z-index:1}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
    .meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
    .visual-panel{
      min-height:350px;border-radius:30px;overflow:hidden;
      border:1px solid rgba(148,163,184,.20);
      background:
        radial-gradient(ellipse at 55% 48%,rgba(203,213,225,.18),transparent 29%),
        linear-gradient(135deg,rgba(45,212,255,.13),rgba(124,58,237,.12)),
        rgba(15,23,42,.56);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 24px 70px rgba(0,0,0,.32);
    }
    .visual-panel:before{
      content:"";
      position:absolute;left:14%;top:9%;width:66%;height:86%;
      border:1px solid rgba(226,232,240,.28);
      border-left-color:rgba(45,212,255,.5);
      border-radius:48% 42% 46% 44%;
      transform:rotate(-12deg);
      filter:blur(.2px);
      box-shadow:0 0 40px rgba(45,212,255,.12);
    }
    .visual-panel:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,transparent,rgba(5,11,24,.78)),repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 18px);
      opacity:.78;
    }
    .visual-caption{
      position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
      display:flex;justify-content:space-between;gap:14px;align-items:center;
      padding:14px;border-radius:18px;background:rgba(5,11,24,.68);
      border:1px solid rgba(148,163,184,.18);backdrop-filter:blur(14px);
    }
    .visual-caption strong{display:block}
    .visual-caption span{font-size:13px;color:var(--subtle)}
    .layout{
      display:grid;
      grid-template-columns:290px 1fr;
      gap:28px;
      align-items:start;
    }
    .side-panel{
      position:sticky;top:132px;
      border:1px solid var(--line);
      border-radius:28px;
      background:var(--panel);
      backdrop-filter:blur(18px) saturate(140%);
      padding:20px;
      box-shadow:0 16px 56px rgba(0,0,0,.28);
    }
    .side-panel h2{font-size:21px;margin-bottom:14px}
    .filter-group{display:grid;gap:10px;margin:18px 0}
    .chip{
      display:flex;align-items:center;justify-content:space-between;gap:8px;
      padding:11px 12px;border-radius:15px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(8,18,34,.58);
      color:var(--muted);transition:var(--ease);
    }
    .chip:hover,.chip.active{border-color:var(--line-bright);color:var(--text);background:rgba(45,212,255,.10)}
    .chip.active span:last-child{color:var(--blue)}
    .notice{
      margin-top:18px;padding:14px;border-radius:18px;
      border:1px solid rgba(245,158,11,.28);
      background:rgba(245,158,11,.08);
      color:#FFE7B3;font-size:14px;
    }
    .content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
    .card{
      position:relative;overflow:hidden;
      border:1px solid var(--line);
      border-radius:26px;
      background:var(--panel);
      backdrop-filter:blur(18px) saturate(140%);
      box-shadow:0 18px 60px rgba(0,0,0,.25);
      transition:var(--ease);
    }
    .card:hover,.card:focus-within{transform:translateY(-5px);border-color:var(--line-bright);box-shadow:0 26px 88px rgba(0,0,0,.36),var(--glow)}
    .card-media{
      height:190px;position:relative;overflow:hidden;
      background:
        radial-gradient(ellipse at 58% 32%,rgba(226,232,240,.18),transparent 28%),
        linear-gradient(135deg,rgba(45,212,255,.16),rgba(124,58,237,.14)),
        #081827;
    }
    .card-media:before{
      content:"";position:absolute;inset:24px 28%;
      border:1px solid rgba(226,232,240,.22);
      border-radius:52% 44% 46% 42%;
      transform:rotate(13deg);
      transition:var(--ease);
    }
    .card:hover .card-media:before{transform:rotate(13deg) scale(1.04);border-color:rgba(45,212,255,.46)}
    .card-media:after{content:"";position:absolute;inset:0;background:linear-gradient(to bottom,transparent,rgba(5,11,24,.78))}
    .card-body{padding:20px}
    .card-body h3{margin:10px 0}
    .card-body p{font-size:15px;color:var(--muted)}
    .card-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:18px;color:var(--subtle);font-size:13px}
    .featured-card{grid-column:span 2;display:grid;grid-template-columns:1.05fr .95fr}
    .featured-card .card-media{height:auto;min-height:330px}
    .featured-card .card-body{padding:30px;display:flex;flex-direction:column;justify-content:center}
    .featured-card h3{font-size:30px}
    .group-panel{
      margin-top:24px;border:1px solid var(--line);border-radius:30px;
      background:rgba(8,18,34,.62);padding:24px;box-shadow:0 16px 54px rgba(0,0,0,.22);
    }
    .group-list{display:grid;gap:14px;margin-top:18px}
    .group-item{
      display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
      padding:16px;border-radius:20px;background:rgba(15,23,42,.48);border:1px solid rgba(148,163,184,.14);
      transition:var(--ease);
    }
    .group-item:hover{border-color:var(--line-bright);background:rgba(45,212,255,.08)}
    .num{
      width:40px;height:40px;border-radius:14px;display:grid;place-items:center;
      background:rgba(45,212,255,.12);color:var(--blue);font-weight:900;
      box-shadow:inset 0 0 18px rgba(45,212,255,.08);
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .recommend-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:20px}
    .recommend-card{padding:22px;min-height:190px;display:flex;flex-direction:column;justify-content:space-between}
    .recommend-card.large{min-height:240px}
    .faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
    .faq-item{
      border:1px solid var(--line);border-radius:22px;background:var(--panel);overflow:hidden;
      backdrop-filter:blur(18px);transition:var(--ease);
    }
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:18px 20px;background:transparent;color:var(--text);font-weight:800;text-align:left;
    }
    .faq-question .plus{font-size:24px;color:var(--blue);transition:var(--ease)}
    .faq-answer{max-height:0;overflow:hidden;transition:max-height .22s ease}
    .faq-answer p{padding:0 20px 18px;font-size:15px}
    .faq-item.open{border-color:var(--line-bright);background:rgba(15,23,42,.76)}
    .faq-item.open .plus{transform:rotate(45deg)}
    .faq-item.open .faq-answer{max-height:180px}
    .cta-panel{
      position:relative;overflow:hidden;
      border-radius:34px;border:1px solid rgba(45,212,255,.28);
      background:
        linear-gradient(120deg,rgba(45,212,255,.14),rgba(124,58,237,.12),rgba(8,18,34,.76)),
        rgba(15,23,42,.68);
      box-shadow:var(--shadow),var(--glow);
      padding:34px;
      display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
    }
    .cta-panel:before{content:"";position:absolute;inset:auto -10% -55% 35%;height:180px;background:rgba(45,212,255,.20);filter:blur(55px);transform:rotate(-8deg)}
    .cta-panel>*{position:relative;z-index:1}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .site-footer{
      margin-top:58px;padding:58px 0 28px;
      background:rgba(3,7,18,.64);
      border-top:1px solid rgba(148,163,184,.16);
      position:relative;
    }
    .site-footer:before{content:"";position:absolute;top:-1px;left:20%;right:20%;height:1px;background:linear-gradient(90deg,transparent,var(--blue),transparent)}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:28px}
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:12px}
    .footer-title{font-size:18px;font-weight:900}
    .footer-desc{max-width:360px;font-size:14px;color:var(--subtle)}
    .footer-col h3{font-size:16px;margin-bottom:14px}
    .footer-links{display:grid;gap:10px;color:var(--subtle);font-size:14px}
    .footer-links a,.footer-links span{transition:var(--ease)}
    .footer-links a:hover{color:var(--blue);transform:translateX(3px)}
    .footer-bottom{
      margin-top:34px;padding-top:22px;border-top:1px solid rgba(148,163,184,.13);
      display:flex;justify-content:space-between;gap:18px;color:var(--subtle);font-size:13px;flex-wrap:wrap;
    }
    @media (max-width:1100px){
      .container{width:min(100% - 48px,var(--container))}
      .nav-shell{align-items:flex-start}
      .brand{min-width:auto}
      .nav-note{display:none}
      .nav-item{min-width:auto}
      .hero-banner{grid-template-columns:1fr;padding:34px}
      .layout{grid-template-columns:1fr}
      .side-panel{position:relative;top:auto}
      .filter-group{grid-template-columns:repeat(3,minmax(0,1fr))}
      .recommend-grid{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:820px){
      .site-header{top:0;padding:10px 0}
      .nav-shell{border-radius:24px;min-height:auto;align-items:center}
      .menu-toggle{display:grid;place-items:center}
      .nav-menu{
        display:none;position:absolute;left:24px;right:24px;top:88px;
        padding:14px;border-radius:24px;background:rgba(5,11,24,.94);
        border:1px solid rgba(45,212,255,.24);box-shadow:var(--shadow);
        backdrop-filter:blur(22px);z-index:60;
      }
      .nav-menu.open{display:grid}
      .nav-item{width:100%}
      .nav-cta{display:none}
      .hero{padding-top:34px}
      .hero-banner{min-height:0;padding:24px;border-radius:28px}
      .visual-panel{min-height:300px}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-head p{margin-top:10px}
      .content-grid{grid-template-columns:1fr}
      .featured-card{grid-column:span 1;grid-template-columns:1fr}
      .featured-card .card-media{min-height:260px}
      .filter-group{grid-template-columns:1fr 1fr}
      .group-item{grid-template-columns:auto 1fr}
      .group-item .badge{grid-column:2}
      .recommend-grid{grid-template-columns:1fr}
      .cta-panel{grid-template-columns:1fr;padding:24px}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:560px){
      .container{width:min(100% - 32px,var(--container))}
      .brand-name{font-size:14px;max-width:190px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
      .brand-sub{font-size:11px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .hero-actions,.cta-actions{display:grid}
      .btn-primary,.btn-secondary{width:100%}
      .meta-row{gap:8px}
      .filter-group{grid-template-columns:1fr}
      .featured-card h3{font-size:24px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid}
    }

/* roulang page: category2 */
:root{
      --bg:#050B18;
      --bg-2:#07111F;
      --panel:rgba(15,23,42,.62);
      --panel-strong:rgba(8,18,34,.82);
      --panel-soft:rgba(30,41,59,.42);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --subtle:#94A3B8;
      --line:rgba(148,163,184,.18);
      --line-bright:rgba(45,212,255,.42);
      --primary:#2DD4FF;
      --primary-2:#38BDF8;
      --blue:#3B82F6;
      --violet:#7C3AED;
      --cyan:#22D3EE;
      --amber:#F59E0B;
      --radius-sm:12px;
      --radius-md:20px;
      --radius-lg:28px;
      --radius-xl:36px;
      --shadow:0 20px 70px rgba(0,0,0,.36);
      --glow:0 0 32px rgba(45,212,255,.22);
      --container:1220px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      line-height:1.78;
      background:
        radial-gradient(circle at 18% 10%, rgba(45,212,255,.18), transparent 32%),
        radial-gradient(circle at 86% 18%, rgba(124,58,237,.20), transparent 36%),
        radial-gradient(circle at 58% 86%, rgba(59,130,246,.13), transparent 38%),
        linear-gradient(180deg,#050B18 0%,#07111F 48%,#050B18 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-2;
      background-image:
        linear-gradient(rgba(148,163,184,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,163,184,.055) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.75),rgba(0,0,0,.12));
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background:
        repeating-linear-gradient(90deg,rgba(255,255,255,.018) 0,rgba(255,255,255,.018) 1px,transparent 1px,transparent 7px),
        radial-gradient(circle at 50% 40%,rgba(255,255,255,.035),transparent 38%);
      opacity:.55;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(45,212,255,.28);color:#fff}

    .container{
      width:min(100%,var(--container));
      margin:0 auto;
      padding:0 32px;
    }
    .section{padding:92px 0}
    .section.compact{padding:68px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:32px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#A5F3FC;
      font-size:14px;
      letter-spacing:.04em;
      padding:7px 12px;
      border:1px solid rgba(45,212,255,.25);
      background:rgba(45,212,255,.08);
      border-radius:999px;
      box-shadow:inset 0 0 18px rgba(45,212,255,.06);
    }
    .eyebrow::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 14px rgba(45,212,255,.85);
    }
    h1,h2,h3{line-height:1.18;letter-spacing:-.02em}
    h1{
      font-size:clamp(32px,5vw,60px);
      max-width:780px;
      margin:18px 0 18px;
    }
    h2{font-size:clamp(28px,3.4vw,42px)}
    h3{font-size:clamp(20px,2vw,26px)}
    p{color:var(--muted)}
    .lead{
      max-width:760px;
      font-size:18px;
      color:#D7E4F2;
    }
    .gradient-text{
      background:linear-gradient(90deg,#F8FAFC 0%,#A5F3FC 42%,#C4B5FD 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:18px;
      z-index:50;
      padding:18px 0 4px;
    }
    .nav-shell{
      min-height:82px;
      display:flex;
      align-items:center;
      gap:14px;
      padding:12px;
      border:1px solid rgba(148,163,184,.20);
      border-radius:30px;
      background:rgba(5,11,24,.72);
      backdrop-filter:blur(20px) saturate(150%);
      box-shadow:0 18px 60px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.06);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:245px;
      padding:10px 12px;
      border-radius:22px;
      transition:var(--ease);
    }
    .brand:hover{background:rgba(255,255,255,.04)}
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      flex:0 0 auto;
      background:
        radial-gradient(circle at 30% 22%,#E0F2FE 0 7%,transparent 8%),
        linear-gradient(135deg,var(--primary),var(--blue) 52%,var(--violet));
      box-shadow:0 0 28px rgba(45,212,255,.34);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:9px 12px;
      border:1px solid rgba(255,255,255,.56);
      border-left-color:transparent;
      border-bottom-color:transparent;
      border-radius:50%;
      transform:rotate(-28deg);
    }
    .brand-text{display:grid;gap:1px}
    .brand-name{font-weight:800;font-size:16px;letter-spacing:-.02em}
    .brand-sub{font-size:12px;color:var(--subtle)}
    .nav-menu{
      flex:1;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
    }
    .nav-item{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:150px;
      padding:10px 12px;
      border:1px solid transparent;
      border-radius:20px;
      color:var(--muted);
      background:rgba(15,23,42,.38);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .nav-item::after{
      content:"";
      position:absolute;
      width:6px;height:6px;
      right:12px;bottom:8px;
      border-radius:50%;
      background:transparent;
      box-shadow:none;
      transition:var(--ease);
    }
    .nav-item:hover,
    .nav-item:focus-visible{
      transform:translateY(-2px);
      border-color:rgba(45,212,255,.28);
      background:rgba(45,212,255,.08);
      outline:none;
    }
    .nav-item.active{
      color:#fff;
      border-color:rgba(45,212,255,.50);
      background:linear-gradient(135deg,rgba(45,212,255,.16),rgba(124,58,237,.14));
      box-shadow:inset 0 0 24px rgba(45,212,255,.08),0 0 24px rgba(45,212,255,.12);
    }
    .nav-item.active::after{
      background:var(--primary);
      box-shadow:0 0 14px var(--primary);
    }
    .nav-icon{
      width:32px;height:32px;
      display:grid;place-items:center;
      border-radius:12px;
      background:rgba(255,255,255,.06);
      color:#A5F3FC;
      flex:0 0 auto;
    }
    .nav-copy{display:grid;line-height:1.25}
    .nav-label{font-size:14px;font-weight:700}
    .nav-note{font-size:12px;color:var(--subtle);white-space:nowrap}
    .nav-cta,.btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 18px;
      border-radius:16px;
      font-weight:800;
      color:#02111D;
      background:linear-gradient(135deg,var(--primary),var(--primary-2) 48%,#A78BFA);
      box-shadow:0 0 28px rgba(45,212,255,.28), inset 0 1px 0 rgba(255,255,255,.35);
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-cta:hover,.btn:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(45,212,255,.38)}
    .nav-cta:active,.btn:active{transform:translateY(0) scale(.99)}
    .nav-cta:focus-visible,.btn:focus-visible,.btn-ghost:focus-visible,.menu-toggle:focus-visible{
      outline:3px solid rgba(45,212,255,.34);
      outline-offset:3px;
    }
    .btn-ghost{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 18px;
      border-radius:16px;
      font-weight:800;
      color:#E0F2FE;
      border:1px solid rgba(148,163,184,.22);
      background:rgba(15,23,42,.52);
      transition:var(--ease);
    }
    .btn-ghost:hover{
      transform:translateY(-2px);
      border-color:rgba(45,212,255,.38);
      background:rgba(45,212,255,.09);
    }
    .menu-toggle{
      display:none;
      width:46px;height:46px;
      border-radius:16px;
      color:#fff;
      background:rgba(15,23,42,.65);
      border:1px solid rgba(148,163,184,.22);
    }

    .hero{
      padding:88px 0 54px;
      position:relative;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.7fr);
      gap:28px;
      align-items:stretch;
    }
    .hero-panel{
      padding:40px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        linear-gradient(135deg,rgba(15,23,42,.78),rgba(8,18,34,.58)),
        radial-gradient(circle at 10% 10%,rgba(45,212,255,.15),transparent 35%);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px) saturate(140%);
      min-height:420px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      width:360px;height:360px;
      border-radius:50%;
      right:-120px;bottom:-150px;
      background:radial-gradient(circle,rgba(124,58,237,.24),transparent 62%);
      pointer-events:none;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
    .hero-meta{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:34px;
      max-width:700px;
    }
    .stat{
      padding:16px;
      border-radius:18px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(255,255,255,.045);
    }
    .stat strong{
      display:block;
      font-size:24px;
      color:#F8FAFC;
      line-height:1.1;
    }
    .stat span{font-size:13px;color:var(--subtle)}
    .side-metrics{
      display:grid;
      gap:16px;
      padding:22px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:rgba(8,18,34,.66);
      box-shadow:var(--shadow),var(--glow);
      backdrop-filter:blur(18px) saturate(140%);
      position:relative;
      overflow:hidden;
    }
    .side-metrics::before{
      content:"";
      position:absolute;
      inset:18px;
      border-radius:28px;
      border:1px solid rgba(45,212,255,.16);
      pointer-events:none;
    }
    .visual-card{
      min-height:248px;
      border-radius:26px;
      overflow:hidden;
      border:1px solid rgba(45,212,255,.22);
      background:
        linear-gradient(145deg,rgba(45,212,255,.20),transparent 35%),
        radial-gradient(circle at 75% 32%,rgba(124,58,237,.42),transparent 32%),
        linear-gradient(135deg,#07111F,#0F2544 55%,#111827);
      position:relative;
      box-shadow:inset 0 0 70px rgba(0,0,0,.35);
    }
    .visual-card::before{
      content:"";
      position:absolute;
      width:190px;height:290px;
      left:50%;top:50%;
      transform:translate(-50%,-48%) rotate(-9deg);
      border:2px solid rgba(226,232,240,.28);
      border-left-color:rgba(45,212,255,.55);
      border-bottom-color:rgba(124,58,237,.32);
      border-radius:48% 52% 44% 56% / 38% 40% 60% 62%;
      filter:blur(.1px);
    }
    .visual-card::after{
      content:"影像档案";
      position:absolute;
      left:18px;bottom:18px;
      padding:8px 12px;
      border-radius:999px;
      color:#DFFBFF;
      font-size:13px;
      background:rgba(5,11,24,.62);
      border:1px solid rgba(45,212,255,.24);
      backdrop-filter:blur(10px);
    }
    .metric-list{
      display:grid;
      gap:12px;
      position:relative;
      z-index:1;
    }
    .metric-item{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(148,163,184,.15);
    }
    .metric-item span{color:var(--subtle);font-size:14px}
    .metric-item b{color:#A5F3FC}

    .topic-strip{
      display:flex;
      gap:18px;
      overflow-x:auto;
      padding:6px 2px 18px;
      scrollbar-color:rgba(45,212,255,.45) rgba(255,255,255,.05);
      scroll-snap-type:x proximity;
    }
    .topic-card{
      min-width:280px;
      flex:1 0 280px;
      scroll-snap-align:start;
      border-radius:26px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(15,23,42,.58);
      box-shadow:0 16px 44px rgba(0,0,0,.25);
      overflow:hidden;
      transition:var(--ease);
    }
    .topic-card:hover{
      transform:translateY(-5px);
      border-color:rgba(45,212,255,.42);
      box-shadow:0 24px 70px rgba(0,0,0,.35),0 0 24px rgba(45,212,255,.12);
    }
    .topic-cover{
      height:150px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 28% 28%,rgba(45,212,255,.28),transparent 34%),
        linear-gradient(135deg,#0B1930,#111827 62%,#1E1B4B);
    }
    .topic-card:nth-child(2) .topic-cover{background:radial-gradient(circle at 72% 24%,rgba(124,58,237,.30),transparent 36%),linear-gradient(135deg,#081827,#172554 55%,#0F172A)}
    .topic-card:nth-child(3) .topic-cover{background:radial-gradient(circle at 60% 70%,rgba(34,211,238,.25),transparent 34%),linear-gradient(135deg,#082F49,#0F172A 60%,#312E81)}
    .topic-card:nth-child(4) .topic-cover{background:radial-gradient(circle at 22% 68%,rgba(167,139,250,.28),transparent 36%),linear-gradient(135deg,#07111F,#0E7490 48%,#1E1B4B)}
    .topic-cover::after{
      content:"";
      position:absolute;
      inset:24px 70px;
      border:1px solid rgba(255,255,255,.24);
      border-radius:52% 48% 46% 54%;
      transform:rotate(10deg);
    }
    .topic-body{padding:20px}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
    .tag{
      display:inline-flex;
      align-items:center;
      padding:5px 9px;
      border-radius:999px;
      font-size:12px;
      color:#BFF7FF;
      background:rgba(45,212,255,.08);
      border:1px solid rgba(45,212,255,.18);
    }
    .topic-body p,.timeline-text p,.recommend-card p{font-size:15px;color:var(--muted)}

    .timeline-wrap{
      position:relative;
      display:grid;
      gap:24px;
    }
    .timeline-wrap::before{
      content:"";
      position:absolute;
      left:22px;
      top:8px;
      bottom:8px;
      width:2px;
      background:linear-gradient(to bottom,transparent,var(--primary),rgba(124,58,237,.65),transparent);
      box-shadow:0 0 20px rgba(45,212,255,.28);
    }
    .timeline-block{
      display:grid;
      grid-template-columns:70px minmax(0,1fr);
      gap:20px;
      position:relative;
    }
    .timeline-dot{
      width:46px;height:46px;
      display:grid;place-items:center;
      border-radius:50%;
      color:#02111D;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),#A78BFA);
      box-shadow:0 0 26px rgba(45,212,255,.34);
      z-index:1;
    }
    .timeline-panel{
      border:1px solid rgba(148,163,184,.18);
      background:rgba(15,23,42,.58);
      border-radius:28px;
      padding:24px;
      backdrop-filter:blur(18px) saturate(140%);
      box-shadow:0 18px 60px rgba(0,0,0,.28);
      transition:var(--ease);
    }
    .timeline-panel:hover{
      border-color:rgba(45,212,255,.34);
      transform:translateY(-3px);
    }
    .timeline-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .timeline-text{max-width:680px}
    .mini-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin-top:18px;
    }
    .mini-card{
      min-height:152px;
      border-radius:20px;
      padding:16px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      border:1px solid rgba(148,163,184,.15);
      background:
        linear-gradient(145deg,rgba(255,255,255,.055),rgba(255,255,255,.025)),
        radial-gradient(circle at top right,rgba(45,212,255,.10),transparent 42%);
      transition:var(--ease);
    }
    .mini-card:hover{
      transform:translateY(-4px);
      border-color:rgba(45,212,255,.34);
      background:rgba(45,212,255,.075);
    }
    .mini-card strong{font-size:16px;color:#F8FAFC}
    .mini-card span{font-size:13px;color:var(--subtle)}

    .recommend-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .feature-card{
      min-height:390px;
      border-radius:32px;
      padding:28px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      position:relative;
      overflow:hidden;
      border:1px solid rgba(45,212,255,.24);
      background:
        linear-gradient(to top,rgba(5,11,24,.92),rgba(5,11,24,.14) 58%),
        radial-gradient(circle at 70% 28%,rgba(124,58,237,.32),transparent 34%),
        linear-gradient(135deg,#082F49,#111827 58%,#1E1B4B);
      box-shadow:var(--shadow),var(--glow);
    }
    .feature-card::before{
      content:"";
      position:absolute;
      width:260px;height:360px;
      right:8%;top:10%;
      border:1px solid rgba(226,232,240,.22);
      border-radius:47% 53% 44% 56%;
      transform:rotate(13deg);
    }
    .feature-card>*{position:relative;z-index:1}
    .feature-card h3{font-size:30px;margin:12px 0}
    .recommend-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .recommend-card{
      border:1px solid rgba(148,163,184,.17);
      border-radius:24px;
      padding:20px;
      background:rgba(15,23,42,.58);
      transition:var(--ease);
    }
    .recommend-card:hover{
      transform:translateY(-4px);
      border-color:rgba(45,212,255,.34);
      box-shadow:0 20px 50px rgba(0,0,0,.26);
    }
    .recommend-card .index{
      width:34px;height:34px;
      display:grid;place-items:center;
      border-radius:13px;
      color:#A5F3FC;
      background:rgba(45,212,255,.10);
      border:1px solid rgba(45,212,255,.18);
      margin-bottom:14px;
    }

    .notice-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .notice-card{
      padding:22px;
      border-radius:26px;
      border:1px solid rgba(148,163,184,.17);
      background:rgba(8,18,34,.66);
      box-shadow:0 14px 44px rgba(0,0,0,.22);
    }
    .notice-card .notice-icon{
      width:42px;height:42px;
      display:grid;place-items:center;
      border-radius:16px;
      color:#02111D;
      font-weight:900;
      background:linear-gradient(135deg,#FDE68A,var(--amber));
      margin-bottom:14px;
    }
    .notice-card:nth-child(2) .notice-icon{background:linear-gradient(135deg,var(--primary),#A5F3FC)}
    .notice-card:nth-child(3) .notice-icon{background:linear-gradient(135deg,#C4B5FD,var(--violet));color:#fff}

    .faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto}
    .faq-item{
      border:1px solid rgba(148,163,184,.18);
      border-radius:22px;
      background:rgba(15,23,42,.58);
      overflow:hidden;
      transition:var(--ease);
    }
    .faq-item.open{
      border-color:rgba(45,212,255,.38);
      background:rgba(45,212,255,.065);
      box-shadow:0 0 28px rgba(45,212,255,.10);
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:20px 22px;
      color:#F8FAFC;
      background:transparent;
      text-align:left;
      font-weight:800;
    }
    .faq-question span:last-child{
      width:28px;height:28px;
      display:grid;place-items:center;
      border-radius:50%;
      background:rgba(255,255,255,.06);
      color:#A5F3FC;
      transition:transform .22s ease;
      flex:0 0 auto;
    }
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .22s ease;
    }
    .faq-answer p{
      padding:0 22px 20px;
      color:var(--muted);
      font-size:15px;
    }

    .cta-panel{
      position:relative;
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      padding:34px;
      border-radius:32px;
      border:1px solid rgba(45,212,255,.24);
      background:
        linear-gradient(135deg,rgba(45,212,255,.12),rgba(124,58,237,.12)),
        rgba(8,18,34,.76);
      box-shadow:var(--shadow),0 0 44px rgba(45,212,255,.12);
      backdrop-filter:blur(18px) saturate(140%);
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      inset:auto -80px -110px auto;
      width:360px;height:240px;
      background:radial-gradient(circle,rgba(45,212,255,.22),transparent 65%);
      pointer-events:none;
    }
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
    .copy-state{
      min-height:24px;
      margin-top:10px;
      color:#A5F3FC;
      font-size:14px;
    }

    .site-footer{
      margin-top:56px;
      padding:64px 0 28px;
      background:
        radial-gradient(circle at 82% 0%,rgba(45,212,255,.10),transparent 28%),
        rgba(3,7,18,.72);
      border-top:1px solid rgba(148,163,184,.16);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr .9fr .85fr;
      gap:28px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-title{font-size:18px;font-weight:900}
    .footer-desc{max-width:360px;font-size:15px;color:var(--subtle)}
    .footer-col h3{
      font-size:16px;
      margin-bottom:14px;
      color:#F8FAFC;
    }
    .footer-links{
      display:grid;
      gap:9px;
      color:var(--subtle);
      font-size:14px;
    }
    .footer-links a,.footer-links span{transition:var(--ease)}
    .footer-links a:hover{
      color:#A5F3FC;
      transform:translateX(3px);
    }
    .footer-bottom{
      margin-top:36px;
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.13);
      display:flex;
      justify-content:space-between;
      gap:16px;
      color:#7F8EA3;
      font-size:13px;
    }

    @media (max-width:1080px){
      .container{padding:0 24px}
      .brand{min-width:auto}
      .brand-sub,.nav-note{display:none}
      .nav-item{min-width:auto}
      .hero-grid,.recommend-layout{grid-template-columns:1fr}
      .side-metrics{grid-template-columns:1fr 1fr}
      .visual-card{min-height:220px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .mini-grid{grid-template-columns:repeat(2,1fr)}
      .notice-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:820px){
      .site-header{top:10px;padding-top:10px}
      .nav-shell{position:relative;min-height:70px;border-radius:24px}
      .menu-toggle{display:grid;place-items:center;margin-left:auto}
      .nav-menu{
        position:absolute;
        left:12px;right:12px;top:calc(100% + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border:1px solid rgba(148,163,184,.20);
        border-radius:24px;
        background:rgba(5,11,24,.92);
        box-shadow:0 20px 70px rgba(0,0,0,.45);
        backdrop-filter:blur(18px) saturate(150%);
      }
      .nav-menu.open{display:flex}
      .nav-item{width:100%}
      .nav-note{display:block}
      .nav-cta{display:none}
      .hero{padding-top:58px}
      .hero-panel{padding:28px;min-height:auto}
      .hero-meta{grid-template-columns:1fr}
      .side-metrics{grid-template-columns:1fr}
      .section,.section.compact{padding:62px 0}
      .section-head{display:grid;gap:14px}
      .timeline-block{grid-template-columns:52px minmax(0,1fr);gap:12px}
      .timeline-wrap::before{left:22px}
      .mini-grid,.recommend-grid,.notice-grid{grid-template-columns:1fr}
      .cta-panel{grid-template-columns:1fr;padding:26px}
      .footer-bottom{flex-direction:column}
    }

    @media (max-width:540px){
      .container{padding:0 16px}
      .brand-name{font-size:14px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .nav-shell{padding:10px}
      .hero-panel{padding:22px;border-radius:26px}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn,.btn-ghost{width:100%}
      .topic-card{min-width:252px}
      .timeline-panel{padding:18px;border-radius:22px}
      .timeline-head{display:grid}
      .footer-grid{grid-template-columns:1fr}
      h1{font-size:31px}
      .lead{font-size:16px}
    }