/* roulang page: index */
:root{
      --bg:#07111F;
      --bg-2:#0B1728;
      --panel:rgba(255,255,255,.08);
      --panel-strong:rgba(255,255,255,.12);
      --line:rgba(255,255,255,.14);
      --line-soft:rgba(255,255,255,.09);
      --gold:#D7B46A;
      --gold-2:#F0D58A;
      --amber:#C9963E;
      --cyan:#30D5C8;
      --blue:#67AFFF;
      --text:#F7F4EA;
      --muted:#C9D2DF;
      --weak:#8FA1B7;
      --shadow:0 24px 80px rgba(0,0,0,.32);
      --shadow-soft:0 18px 50px rgba(0,0,0,.24);
      --radius-xl:32px;
      --radius-lg:24px;
      --radius-md:18px;
      --container:1200px;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      --ease:cubic-bezier(.2,.75,.25,1);
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 18% 6%, rgba(215,180,106,.18), transparent 34%),
        radial-gradient(circle at 84% 12%, rgba(48,213,200,.13), transparent 31%),
        linear-gradient(180deg,#07111F 0%,#091522 48%,#06101D 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.35;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
      z-index:-2;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(100% - 48px,var(--container));margin-inline:auto}
    .section{padding:104px 0;position:relative}
    .section-tight{padding:76px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--gold-2);
      background:rgba(215,180,106,.10);
      border:1px solid rgba(215,180,106,.26);
      border-radius:999px;
      padding:8px 14px;
      font-size:14px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 18px rgba(48,213,200,.75);
    }
    .section-title{
      margin-top:18px;
      font-size:clamp(30px,4vw,48px);
      line-height:1.15;
      letter-spacing:-.04em;
      font-weight:800;
    }
    .section-desc{
      margin-top:18px;
      max-width:760px;
      color:var(--muted);
      font-size:17px;
    }
    .gold-text{
      background:linear-gradient(135deg,var(--gold-2),var(--amber));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(7,17,31,.72);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(18px);
      transition:background .25s var(--ease),box-shadow .25s var(--ease);
    }
    .site-header.is-scrolled{
      background:rgba(7,17,31,.90);
      box-shadow:0 16px 45px rgba(0,0,0,.24);
    }
    .nav{
      height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .logo-mark{
      width:44px;height:44px;border-radius:16px;
      background:
        linear-gradient(135deg,rgba(240,213,138,.95),rgba(201,150,62,.88));
      position:relative;
      box-shadow:0 0 28px rgba(215,180,106,.25);
    }
    .logo-mark::before{
      content:"M";
      position:absolute;
      inset:0;
      display:grid;
      place-items:center;
      color:#08111F;
      font-weight:900;
      font-size:22px;
      letter-spacing:-.04em;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:9px;
      border:1px solid rgba(8,17,31,.42);
      border-radius:12px 12px 18px 18px;
    }
    .logo-text strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.01em}
    .logo-text span{display:block;color:var(--weak);font-size:12px;margin-top:2px}
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .nav-links a{
      position:relative;
      padding:10px 14px;
      color:var(--muted);
      font-size:15px;
      font-weight:650;
      border-radius:999px;
      transition:color .2s var(--ease),background .2s var(--ease);
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.07);
      outline:none;
    }
    .nav-links a.active{
      color:var(--gold-2);
      background:rgba(215,180,106,.10);
    }
    .nav-links a.active::after{
      content:"";
      position:absolute;
      left:50%;bottom:4px;
      transform:translateX(-50%);
      width:18px;height:2px;border-radius:99px;
      background:linear-gradient(90deg,var(--gold-2),var(--cyan));
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:13px 22px;
      border-radius:999px;
      font-weight:800;
      letter-spacing:.01em;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#08111F;
      background:linear-gradient(135deg,var(--gold-2),var(--amber));
      box-shadow:0 0 28px rgba(215,180,106,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(215,180,106,.32)}
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.16);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(48,213,200,.46);background:rgba(255,255,255,.11)}
    .btn:focus-visible,
    .menu-toggle:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    summary:focus-visible{
      outline:3px solid rgba(48,213,200,.35);
      outline-offset:3px;
    }
    .menu-toggle{
      display:none;
      width:46px;height:46px;border-radius:15px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      color:var(--text);
    }
    .menu-toggle span{
      display:block;
      width:20px;height:2px;
      background:var(--text);
      margin:5px auto;
      border-radius:99px;
      transition:.2s var(--ease);
    }
    .hero{
      position:relative;
      min-height:760px;
      display:flex;
      align-items:center;
      padding:92px 0 64px;
      overflow:hidden;
      background-image:
        linear-gradient(90deg,rgba(7,17,31,.94),rgba(7,17,31,.64) 58%,rgba(7,17,31,.90)),
        url("/assets/images/backpic/back-1.webp");
      background-size:cover;
      background-position:center;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 22% 25%,rgba(215,180,106,.22),transparent 28%),
        radial-gradient(circle at 78% 24%,rgba(48,213,200,.16),transparent 25%),
        linear-gradient(135deg,transparent 0 56%,rgba(215,180,106,.08) 56% 57%,transparent 57%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:56px;
      align-items:center;
    }
    .hero h1{
      margin-top:22px;
      max-width:780px;
      font-size:clamp(38px,6vw,70px);
      line-height:1.08;
      letter-spacing:-.06em;
      font-weight:900;
    }
    .hero-sub{
      margin-top:24px;
      color:var(--muted);
      font-size:18px;
      max-width:700px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:34px;
    }
    .hero-note{
      margin-top:22px;
      color:var(--weak);
      font-size:14px;
    }
    .gateway-stack{
      position:relative;
      min-height:520px;
    }
    .glass-card{
      background:linear-gradient(180deg,rgba(255,255,255,.11),rgba(255,255,255,.055));
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(18px);
      transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
    }
    .glass-card:hover{
      transform:translateY(-6px);
      border-color:rgba(215,180,106,.45);
      box-shadow:var(--shadow);
    }
    .portal-card{
      position:absolute;
      right:0;top:26px;
      width:min(100%,430px);
      padding:28px;
    }
    .portal-head{
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:flex-start;
      border-bottom:1px solid var(--line-soft);
      padding-bottom:20px;
    }
    .portal-head h2{font-size:24px;line-height:1.25}
    .status{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#08111F;
      background:linear-gradient(135deg,var(--cyan),var(--blue));
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      font-weight:900;
    }
    .status::before{content:"";width:7px;height:7px;border-radius:50%;background:#08111F}
    .portal-list{display:grid;gap:13px;margin-top:22px}
    .portal-row{
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:14px 15px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.10);
      border-radius:16px;
    }
    .portal-row span{color:var(--muted);font-size:14px}
    .portal-row strong{color:var(--gold-2);font-size:14px;text-align:right}
    .mini-card{
      position:absolute;
      left:18px;
      width:245px;
      padding:20px;
      z-index:2;
    }
    .mini-card.one{top:0}
    .mini-card.two{bottom:42px;left:0}
    .mini-card .num{
      color:var(--gold-2);
      font-size:36px;
      line-height:1;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .mini-card p{color:var(--muted);font-size:14px;margin-top:8px;line-height:1.6}
    .arc{
      position:absolute;
      right:38px;bottom:12px;
      width:270px;height:270px;
      border:1px solid rgba(215,180,106,.30);
      border-radius:50%;
      opacity:.7;
    }
    .arc::before,.arc::after{
      content:"";position:absolute;border-radius:50%;border:1px solid rgba(48,213,200,.22);
    }
    .arc::before{inset:34px}.arc::after{inset:72px}
    .trust-strip{
      position:relative;
      margin-top:-36px;
      z-index:5;
    }
    .trust-inner{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:1px;
      overflow:hidden;
      border-radius:24px;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.07);
      backdrop-filter:blur(18px);
      box-shadow:var(--shadow-soft);
    }
    .trust-item{
      padding:24px;
      background:rgba(11,23,40,.76);
    }
    .trust-item strong{display:block;color:var(--text);font-size:18px}
    .trust-item span{display:block;color:var(--weak);font-size:14px;margin-top:4px}
    .split-grid{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:42px;
      align-items:start;
      margin-top:34px;
    }
    .lead-panel{
      position:sticky;
      top:112px;
      padding:34px;
      border-color:rgba(215,180,106,.22);
    }
    .lead-panel p{color:var(--muted)}
    .lead-panel img{
      margin-top:24px;
      border-radius:22px;
      height:210px;
      width:100%;
      object-fit:cover;
      filter:saturate(.9) contrast(1.02);
    }
    .matrix{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .info-card{
      padding:26px;
      min-height:228px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .info-card .idx{color:var(--gold-2);font-weight:900;letter-spacing:.08em}
    .info-card h3{font-size:22px;line-height:1.25;margin-top:16px}
    .info-card p{color:var(--muted);margin-top:12px;font-size:15px}
    .text-link{
      margin-top:20px;
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--cyan);
      font-weight:800;
      font-size:14px;
    }
    .text-link span{transition:transform .2s var(--ease)}
    .text-link:hover span{transform:translateX(3px)}
    .data-band{
      display:grid;
      grid-template-columns:1.2fr repeat(4,1fr);
      gap:16px;
      margin-top:36px;
      align-items:stretch;
    }
    .data-intro{
      padding:30px;
      background:
        linear-gradient(135deg,rgba(215,180,106,.13),rgba(48,213,200,.06)),
        rgba(255,255,255,.06);
      border:1px solid rgba(215,180,106,.22);
      border-radius:var(--radius-lg);
    }
    .data-intro p{color:var(--muted);margin-top:12px}
    .stat{
      padding:26px 22px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(255,255,255,.07);
      min-height:170px;
    }
    .stat strong{
      display:block;
      font-size:42px;
      line-height:1;
      color:var(--gold-2);
      letter-spacing:-.04em;
    }
    .stat span{display:block;color:var(--text);font-weight:800;margin-top:16px}
    .stat p{color:var(--weak);font-size:14px;margin-top:6px;line-height:1.55}
    .route-wrap{
      margin-top:40px;
      position:relative;
      display:grid;
      gap:18px;
    }
    .route-wrap::before{
      content:"";
      position:absolute;
      left:23px;top:28px;bottom:28px;
      width:2px;
      background:linear-gradient(180deg,var(--gold),var(--cyan));
      opacity:.55;
    }
    .route-card{
      position:relative;
      display:grid;
      grid-template-columns:52px 1fr auto;
      gap:22px;
      align-items:center;
      padding:24px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:linear-gradient(90deg,rgba(255,255,255,.09),rgba(255,255,255,.045));
      transition:.24s var(--ease);
    }
    .route-card:hover{border-color:rgba(48,213,200,.42);transform:translateX(4px)}
    .route-dot{
      width:46px;height:46px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(215,180,106,.12);
      border:1px solid rgba(215,180,106,.40);
      color:var(--gold-2);
      font-weight:900;
      box-shadow:0 0 22px rgba(215,180,106,.20);
      z-index:1;
    }
    .route-card h3{font-size:21px}
    .route-card p{color:var(--muted);margin-top:6px;font-size:15px}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      font-size:13px;
      font-weight:700;
    }
    .tag::before{
      content:"";
      width:6px;height:6px;border-radius:50%;
      background:var(--gold);
    }
    .gateway-panel{
      position:relative;
      overflow:hidden;
      padding:42px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(215,180,106,.26);
      background:
        linear-gradient(90deg,rgba(7,17,31,.92),rgba(7,17,31,.74)),
        url("/assets/images/backpic/back-2.webp");
      background-size:cover;
      background-position:center;
      box-shadow:var(--shadow);
    }
    .gateway-panel::after{
      content:"";
      position:absolute;
      right:-120px;top:-120px;
      width:330px;height:330px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(215,180,106,.18),transparent 68%);
    }
    .gateway-grid{
      position:relative;
      display:grid;
      grid-template-columns:1fr 380px;
      gap:36px;
      align-items:center;
      z-index:1;
    }
    .check-card{
      padding:26px;
      background:rgba(11,23,40,.74);
      border:1px solid rgba(255,255,255,.14);
      border-radius:24px;
      backdrop-filter:blur(16px);
    }
    .check-card h3{font-size:24px}
    .check-list{display:grid;gap:12px;margin:20px 0}
    .check-list li{
      list-style:none;
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
      border-bottom:1px solid rgba(255,255,255,.08);
      color:var(--muted);
      font-size:14px;
    }
    .check-list strong{color:var(--text);text-align:right}
    .notice{
      color:var(--weak);
      font-size:14px;
      line-height:1.65;
      margin-top:12px;
    }
    .article-strip{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
      margin-top:36px;
    }
    .article-card{
      display:grid;
      grid-template-columns:190px 1fr;
      gap:20px;
      padding:18px;
      overflow:hidden;
    }
    .article-thumb{
      position:relative;
      overflow:hidden;
      border-radius:18px;
      min-height:160px;
    }
    .article-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s var(--ease);
    }
    .article-card:hover .article-thumb img{transform:scale(1.06)}
    .article-card h3{font-size:20px;line-height:1.35}
    .article-card p{color:var(--muted);font-size:15px;margin-top:10px}
    .meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
    .faq-list{
      margin-top:36px;
      display:grid;
      gap:14px;
    }
    details{
      border:1px solid var(--line);
      background:rgba(255,255,255,.07);
      border-radius:20px;
      overflow:hidden;
      transition:border-color .2s var(--ease),background .2s var(--ease);
    }
    details[open]{border-color:rgba(215,180,106,.42);background:rgba(255,255,255,.095)}
    summary{
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:22px 24px;
      color:var(--text);
      font-size:18px;
      font-weight:800;
      cursor:pointer;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      color:var(--gold-2);
      font-size:26px;
      line-height:1;
      transition:transform .2s var(--ease);
    }
    details[open] summary::after{transform:rotate(45deg)}
    details p{
      padding:0 24px 24px;
      color:var(--muted);
      max-width:940px;
    }
    .contact-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:26px;
      align-items:stretch;
    }
    .cta-card{
      padding:38px;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 18% 12%,rgba(215,180,106,.22),transparent 36%),
        linear-gradient(135deg,rgba(255,255,255,.11),rgba(255,255,255,.05));
      border:1px solid rgba(215,180,106,.28);
      box-shadow:var(--shadow-soft);
    }
    .cta-card p{color:var(--muted);margin-top:16px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .form-card{
      padding:30px;
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.075);
      border:1px solid var(--line);
      backdrop-filter:blur(16px);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{color:var(--muted);font-size:14px;font-weight:700}
    input,textarea{
      width:100%;
      color:var(--text);
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.14);
      border-radius:16px;
      padding:14px 15px;
      transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
    }
    textarea{min-height:128px;resize:vertical}
    input::placeholder,textarea::placeholder{color:var(--weak)}
    input:focus,textarea:focus{
      outline:none;
      border-color:var(--gold);
      background:rgba(255,255,255,.09);
      box-shadow:0 0 0 4px rgba(215,180,106,.15);
    }
    .site-footer{
      position:relative;
      background:#081321;
      border-top:1px solid rgba(215,180,106,.22);
      padding:58px 0 26px;
    }
    .site-footer::before{
      content:"";
      position:absolute;top:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--gold),var(--cyan),transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr 1fr .9fr;
      gap:34px;
    }
    .footer-title{font-size:16px;font-weight:900;margin-bottom:14px;color:var(--text)}
    .footer-text{color:var(--weak);font-size:14px;line-height:1.7}
    .footer-links{display:grid;gap:9px}
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      transition:color .2s var(--ease),transform .2s var(--ease);
    }
    .footer-links a:hover{color:var(--gold-2);transform:translateX(3px)}
    .keyword-tags{display:flex;flex-wrap:wrap;gap:8px}
    .keyword-tags span{
      padding:7px 10px;border-radius:999px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.10);
      color:var(--muted);
      font-size:13px;
    }
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1024px){
      .container{width:min(100% - 40px,var(--container))}
      .hero-grid,.split-grid,.gateway-grid,.contact-grid{grid-template-columns:1fr}
      .gateway-stack{min-height:480px;max-width:620px}
      .lead-panel{position:relative;top:auto}
      .data-band{grid-template-columns:repeat(2,1fr)}
      .data-intro{grid-column:1/-1}
      .article-strip{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--container))}
      .section{padding:72px 0}
      .nav{height:70px}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        left:16px;right:16px;top:78px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
        padding:16px;
        border:1px solid rgba(255,255,255,.14);
        border-radius:22px;
        background:rgba(7,17,31,.96);
        box-shadow:var(--shadow);
        backdrop-filter:blur(20px);
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:13px 14px}
      .nav-cta{display:none}
      .nav-links .mobile-cta{display:flex;margin-top:6px;width:100%}
      .hero{min-height:auto;padding:76px 0 92px}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .trust-inner{grid-template-columns:1fr 1fr}
      .matrix{grid-template-columns:1fr}
      .route-card{grid-template-columns:44px 1fr}
      .route-card .tag{grid-column:2}
      .route-wrap::before{left:21px}
      .article-card{grid-template-columns:1fr}
      .article-thumb{min-height:210px}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width:520px){
      .container{width:min(100% - 28px,var(--container))}
      .logo-text span{display:none}
      .hero h1{font-size:38px}
      .portal-card,.mini-card{position:relative;width:100%;left:auto;right:auto;top:auto;bottom:auto;margin-top:14px}
      .gateway-stack{min-height:auto}
      .arc{display:none}
      .trust-inner,.data-band{grid-template-columns:1fr}
      .gateway-panel,.cta-card{padding:26px}
      summary{font-size:16px;padding:18px 20px}
      details p{padding:0 20px 20px}
    }

/* roulang page: category1 */
:root{
      --bg:#07111F;
      --bg-2:#0B1728;
      --panel:rgba(255,255,255,.08);
      --panel-strong:rgba(255,255,255,.12);
      --line:rgba(255,255,255,.14);
      --line-gold:rgba(215,180,106,.42);
      --gold:#D7B46A;
      --gold-2:#F0D58A;
      --amber:#C9963E;
      --cyan:#30D5C8;
      --blue:#67AFFF;
      --text:#F7F4EA;
      --muted:#C9D2DF;
      --sub:#8FA1B7;
      --steel:#5E6B7E;
      --shadow:0 24px 80px rgba(0,0,0,.32);
      --shadow-soft:0 16px 46px rgba(0,0,0,.24);
      --radius-xl:32px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-pill:999px;
      --container:1200px;
      --ease:all .28s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 18% 5%, rgba(215,180,106,.20), transparent 34%),
        radial-gradient(circle at 88% 12%, rgba(48,213,200,.13), transparent 32%),
        linear-gradient(180deg,#07111F 0%,#081525 45%,#07111F 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.16;
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.9), transparent 78%);
      z-index:-2;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none;color:inherit}
    ::selection{background:rgba(215,180,106,.35);color:#fff}
    .container{width:min(var(--container), calc(100% - 48px));margin-inline:auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      background:rgba(7,17,31,.78);
      border-bottom:1px solid rgba(255,255,255,.10);
      backdrop-filter:blur(18px);
      box-shadow:0 10px 34px rgba(0,0,0,.18);
    }
    .nav{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:13px;
      min-width:max-content;
    }
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      position:relative;
      background:
        linear-gradient(135deg, rgba(240,213,138,.95), rgba(201,150,62,.92));
      box-shadow:0 0 28px rgba(215,180,106,.28);
    }
    .logo-mark::before{
      content:"";
      position:absolute;
      inset:8px 9px;
      border:2px solid rgba(7,17,31,.82);
      border-bottom-color:transparent;
      border-radius:16px 16px 8px 8px;
    }
    .logo-mark::after{
      content:"M";
      position:absolute;
      inset:0;
      display:grid;
      place-items:center;
      font-weight:900;
      font-size:15px;
      color:#07111F;
      transform:translateY(3px);
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.15}
    .logo-text strong{font-size:18px;letter-spacing:.02em}
    .logo-text span{font-size:12px;color:var(--sub);margin-top:4px}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      margin-left:auto;
    }
    .nav-links>a:not(.btn){
      position:relative;
      padding:10px 14px;
      border-radius:var(--radius-pill);
      color:var(--muted);
      font-size:15px;
      font-weight:600;
      transition:var(--ease);
    }
    .nav-links>a:not(.btn)::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:3px;
      width:0;
      height:2px;
      transform:translateX(-50%);
      background:linear-gradient(90deg,var(--gold-2),var(--amber));
      border-radius:20px;
      transition:var(--ease);
    }
    .nav-links>a:not(.btn):hover,
    .nav-links>a:not(.btn).active{
      color:var(--text);
      background:rgba(255,255,255,.07);
    }
    .nav-links>a:not(.btn).active::after,
    .nav-links>a:not(.btn):hover::after{width:22px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:13px 22px;
      border-radius:var(--radius-pill);
      font-weight:800;
      letter-spacing:.01em;
      transition:var(--ease);
      white-space:nowrap;
      border:1px solid transparent;
      gap:8px;
    }
    .btn-primary{
      color:#08111F;
      background:linear-gradient(135deg,var(--gold-2),var(--amber));
      box-shadow:0 0 28px rgba(215,180,106,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 42px rgba(215,180,106,.34)}
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.16);
    }
    .btn-secondary:hover{
      border-color:rgba(48,213,200,.55);
      background:rgba(255,255,255,.12);
      transform:translateY(-2px);
    }
    .btn-text{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--gold-2);
      font-weight:800;
      transition:var(--ease);
    }
    .btn-text span{transition:var(--ease)}
    .btn-text:hover span{transform:translateX(4px)}
    .btn:focus-visible,
    .nav-links a:focus-visible,
    .menu-toggle:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    summary:focus-visible{
      outline:3px solid rgba(48,213,200,.38);
      outline-offset:3px;
    }
    .mobile-cta{display:none}
    .menu-toggle{
      width:46px;
      height:46px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.14);
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      background:rgba(255,255,255,.07);
    }
    .menu-toggle span{
      width:20px;
      height:2px;
      border-radius:20px;
      background:var(--text);
      transition:var(--ease);
    }
    .section{padding:94px 0}
    .section-tight{padding:66px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 13px;
      border:1px solid rgba(215,180,106,.28);
      border-radius:var(--radius-pill);
      background:rgba(215,180,106,.08);
      color:var(--gold-2);
      font-size:14px;
      font-weight:800;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 18px rgba(48,213,200,.85);
    }
    .inner-hero{
      position:relative;
      padding:82px 0 54px;
      overflow:hidden;
      border-bottom:1px solid rgba(255,255,255,.10);
      background:
        linear-gradient(90deg, rgba(7,17,31,.94), rgba(7,17,31,.72)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }
    .inner-hero::before{
      content:"";
      position:absolute;
      inset:-20% -10%;
      background:
        radial-gradient(circle at 20% 26%, rgba(215,180,106,.22), transparent 28%),
        radial-gradient(circle at 78% 22%, rgba(48,213,200,.15), transparent 25%);
      pointer-events:none;
    }
    .inner-hero::after{
      content:"";
      position:absolute;
      right:8%;
      bottom:-140px;
      width:460px;
      height:460px;
      border:1px solid rgba(215,180,106,.18);
      border-radius:50%;
      box-shadow:inset 0 0 80px rgba(215,180,106,.06);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) 380px;
      gap:44px;
      align-items:center;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      color:var(--sub);
      font-size:14px;
      margin-bottom:22px;
    }
    .breadcrumb a{color:var(--muted);transition:var(--ease)}
    .breadcrumb a:hover{color:var(--gold-2)}
    h1{
      margin-top:18px;
      font-size:clamp(38px,6vw,64px);
      line-height:1.08;
      letter-spacing:-.04em;
      max-width:780px;
    }
    .gradient-text{
      background:linear-gradient(135deg,var(--gold-2),var(--amber));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      max-width:760px;
      margin-top:22px;
      color:var(--muted);
      font-size:18px;
      line-height:1.78;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
    .overview-card{
      position:relative;
      padding:26px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,255,255,.15);
      background:linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.06));
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      overflow:hidden;
    }
    .overview-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg, rgba(215,180,106,.14), transparent 38%, rgba(48,213,200,.10));
      pointer-events:none;
    }
    .overview-card>*{position:relative;z-index:1}
    .status-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-bottom:18px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .status-row strong{font-size:22px}
    .status-pill{
      padding:7px 11px;
      border-radius:999px;
      color:#07111F;
      background:linear-gradient(135deg,var(--cyan),var(--blue));
      font-size:12px;
      font-weight:900;
    }
    .mini-list{display:grid;gap:13px;margin-top:20px}
    .mini-list li{
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border-radius:16px;
      background:rgba(7,17,31,.45);
      border:1px solid rgba(255,255,255,.10);
      color:var(--muted);
      font-size:14px;
    }
    .mini-list b{color:var(--text)}
    .tag-strip{
      position:relative;
      z-index:2;
      margin-top:-24px;
    }
    .tag-scroll{
      display:flex;
      gap:12px;
      padding:14px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:24px;
      background:rgba(11,23,40,.80);
      backdrop-filter:blur(18px);
      overflow-x:auto;
      box-shadow:var(--shadow-soft);
    }
    .tag{
      flex:0 0 auto;
      padding:10px 16px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.15);
      background:rgba(255,255,255,.06);
      color:var(--muted);
      font-size:14px;
      font-weight:800;
      transition:var(--ease);
    }
    .tag.active{
      color:#07111F;
      background:linear-gradient(135deg,var(--gold-2),var(--amber));
      border-color:transparent;
    }
    .tag:hover{border-color:rgba(48,213,200,.52);color:var(--text)}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:26px;
      margin-bottom:36px;
    }
    .section-head h2{
      font-size:clamp(30px,4vw,46px);
      line-height:1.16;
      letter-spacing:-.03em;
      max-width:760px;
    }
    .section-head p{
      color:var(--sub);
      max-width:430px;
      font-size:16px;
    }
    .glass-card{
      border:1px solid var(--line);
      background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.05));
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(16px);
      transition:var(--ease);
    }
    .glass-card:hover{
      transform:translateY(-6px);
      border-color:rgba(215,180,106,.45);
      box-shadow:var(--shadow);
    }
    .guide-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:28px;
      align-items:start;
    }
    .featured{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:0;
      overflow:hidden;
      margin-bottom:26px;
    }
    .featured-media{
      position:relative;
      min-height:330px;
      overflow:hidden;
      background:#0B1728;
    }
    .featured-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
      opacity:.9;
    }
    .featured:hover .featured-media img{transform:scale(1.05)}
    .featured-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent, rgba(7,17,31,.38));
    }
    .featured-body{padding:32px}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid rgba(215,180,106,.32);
      color:var(--gold-2);
      background:rgba(215,180,106,.08);
      font-size:13px;
      font-weight:900;
    }
    .featured h2{
      margin-top:18px;
      font-size:30px;
      line-height:1.25;
      letter-spacing:-.02em;
    }
    .featured p{
      margin-top:16px;
      color:var(--muted);
    }
    .check-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:14px;
      margin-top:24px;
    }
    .check-item{
      padding:16px;
      border-radius:18px;
      background:rgba(7,17,31,.45);
      border:1px solid rgba(255,255,255,.10);
    }
    .check-item strong{
      display:flex;
      align-items:center;
      gap:9px;
      font-size:16px;
      margin-bottom:7px;
    }
    .check-item strong::before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 16px rgba(48,213,200,.65);
    }
    .check-item span{display:block;color:var(--sub);font-size:14px;line-height:1.65}
    .path-list{display:grid;gap:16px}
    .path-card{
      display:grid;
      grid-template-columns:84px 1fr auto;
      gap:20px;
      padding:24px;
      align-items:center;
    }
    .path-no{
      width:62px;
      height:62px;
      border-radius:22px;
      display:grid;
      place-items:center;
      color:#07111F;
      font-weight:900;
      background:linear-gradient(135deg,var(--gold-2),var(--amber));
      box-shadow:0 0 26px rgba(215,180,106,.25);
    }
    .path-card h3{
      font-size:22px;
      line-height:1.25;
      margin-bottom:8px;
    }
    .path-card p{color:var(--muted)}
    .meta-line{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:12px;
      color:var(--sub);
      font-size:13px;
    }
    .meta-line span{
      padding:5px 9px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
    }
    .side-stack{
      position:sticky;
      top:102px;
      display:grid;
      gap:18px;
    }
    .side-card{padding:24px}
    .side-card h3{
      font-size:21px;
      line-height:1.25;
      margin-bottom:14px;
    }
    .domain-box{
      margin:16px 0;
      padding:14px;
      border-radius:16px;
      border:1px solid rgba(215,180,106,.28);
      background:rgba(215,180,106,.08);
      color:var(--gold-2);
      font-weight:900;
      word-break:break-all;
    }
    .keyword-tags{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .keyword-tags span{
      padding:8px 11px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.06);
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .note-list{display:grid;gap:12px;margin-top:12px}
    .note-list a,.note-list div{
      padding:13px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
      color:var(--muted);
      transition:var(--ease);
    }
    .note-list a:hover{color:var(--gold-2);border-color:rgba(215,180,106,.35)}
    .steps-panel{
      position:relative;
      padding:34px;
      overflow:hidden;
    }
    .steps-panel::before{
      content:"";
      position:absolute;
      left:58px;
      top:115px;
      bottom:52px;
      width:1px;
      background:linear-gradient(var(--gold), rgba(48,213,200,.25));
      opacity:.6;
    }
    .step{
      position:relative;
      display:grid;
      grid-template-columns:64px 1fr;
      gap:18px;
      padding:18px 0;
    }
    .step-dot{
      width:36px;
      height:36px;
      margin-left:6px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#07111F;
      font-weight:900;
      background:linear-gradient(135deg,var(--cyan),var(--blue));
      box-shadow:0 0 24px rgba(48,213,200,.28);
      z-index:1;
    }
    .step h3{font-size:21px;margin-bottom:6px}
    .step p{color:var(--muted)}
    .data-row{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:16px;
    }
    .data-card{
      padding:24px;
      min-height:156px;
    }
    .data-card strong{
      display:block;
      font-size:38px;
      line-height:1;
      color:var(--gold-2);
      letter-spacing:-.03em;
      margin-bottom:12px;
    }
    .data-card span{color:var(--text);font-weight:800}
    .data-card p{margin-top:8px;color:var(--sub);font-size:14px;line-height:1.6}
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    details.faq-item{
      padding:22px 24px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.045));
      transition:var(--ease);
    }
    details.faq-item:hover,
    details.faq-item[open]{
      border-color:rgba(48,213,200,.42);
      background:rgba(255,255,255,.09);
    }
    .faq-item summary{
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      font-size:18px;
      font-weight:900;
      cursor:pointer;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:30px;
      height:30px;
      flex:0 0 30px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#07111F;
      background:linear-gradient(135deg,var(--gold-2),var(--amber));
      transition:var(--ease);
    }
    .faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
    .faq-item p{
      margin-top:14px;
      color:var(--muted);
      line-height:1.75;
    }
    .cta-band{
      position:relative;
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      padding:34px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(215,180,106,.34);
      background:
        radial-gradient(circle at 12% 10%, rgba(215,180,106,.22), transparent 36%),
        linear-gradient(135deg, rgba(255,255,255,.12), rgba(255,255,255,.05));
      box-shadow:var(--shadow);
    }
    .cta-band h2{font-size:34px;line-height:1.2;margin-bottom:10px}
    .cta-band p{color:var(--muted);max-width:740px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .site-footer{
      margin-top:40px;
      padding:58px 0 26px;
      background:#0B1728;
      border-top:1px solid rgba(215,180,106,.26);
      position:relative;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:0;
      height:1px;
      background:linear-gradient(90deg, transparent, var(--gold), var(--cyan), transparent);
      opacity:.75;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr 1fr .9fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.10);
    }
    .footer-title{
      font-size:16px;
      font-weight:900;
      color:var(--text);
      margin-bottom:14px;
    }
    .footer-text{color:var(--sub);font-size:14px;line-height:1.75}
    .footer-links{display:grid;gap:10px}
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      transition:var(--ease);
    }
    .footer-links a:hover{color:var(--gold-2);transform:translateX(3px)}
    .copyright{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-top:22px;
      color:var(--steel);
      font-size:13px;
      line-height:1.6;
    }
    @media (max-width:1024px){
      .container{width:min(100% - 40px,var(--container))}
      .nav-links{
        position:absolute;
        top:78px;
        left:20px;
        right:20px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:18px;
        border:1px solid rgba(255,255,255,.14);
        border-radius:24px;
        background:rgba(7,17,31,.94);
        backdrop-filter:blur(18px);
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links>a:not(.btn){padding:13px 16px}
      .nav-cta{display:none}
      .mobile-cta{display:inline-flex;width:100%;margin-top:6px}
      .menu-toggle{display:flex}
      .hero-grid,.guide-layout{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(3, minmax(0,1fr))}
      .featured{grid-template-columns:1fr}
      .featured-media{min-height:260px}
      .data-row{grid-template-columns:repeat(2, minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
      .copyright{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--container))}
      .section{padding:68px 0}
      .section-tight{padding:52px 0}
      .inner-hero{padding:58px 0 42px}
      .hero-actions,.cta-actions{width:100%}
      .hero-actions .btn,.cta-actions .btn{width:100%}
      .overview-card{padding:22px}
      .section-head{display:block}
      .section-head p{margin-top:12px;max-width:none}
      .featured-body{padding:24px}
      .check-grid,.faq-grid,.side-stack{grid-template-columns:1fr}
      .path-card{grid-template-columns:1fr;gap:14px}
      .path-no{width:54px;height:54px}
      .steps-panel{padding:24px}
      .steps-panel::before{left:42px;top:104px}
      .step{grid-template-columns:46px 1fr}
      .cta-band{grid-template-columns:1fr;padding:26px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .container{width:min(100% - 28px,var(--container))}
      .logo-text span{display:none}
      .logo-text strong{font-size:17px}
      .logo-mark{width:38px;height:38px;border-radius:14px}
      h1{font-size:36px}
      .hero-lead{font-size:16px}
      .tag-scroll{border-radius:20px}
      .featured h2{font-size:25px}
      .data-row{grid-template-columns:1fr}
      .status-row{align-items:flex-start;flex-direction:column}
      .footer-text,.footer-links a{font-size:13px}
    }