/* roulang page: index */
:root{
      --bg:#0B0D10;
      --bg-soft:#111318;
      --bg-card:#171A20;
      --bg-card-2:rgba(255,255,255,.045);
      --text:#F4F1E8;
      --muted:#A7A99F;
      --muted-2:#777B73;
      --line:rgba(244,241,232,.14);
      --line-strong:rgba(82,240,177,.36);
      --primary:#52F0B1;
      --primary-2:#66E3C4;
      --accent:#FFB86B;
      --danger:#FF8A6B;
      --shadow:0 22px 70px rgba(0,0,0,.42);
      --shadow-soft:0 14px 40px rgba(0,0,0,.28);
      --radius-xl:26px;
      --radius-lg:20px;
      --radius-md:15px;
      --radius-sm:12px;
      --container:1180px;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
      --ease:160ms ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 16% 8%, rgba(82,240,177,.16), transparent 32%),
        radial-gradient(circle at 86% 18%, rgba(255,184,107,.10), transparent 26%),
        linear-gradient(180deg,#0B0D10 0%,#101217 46%,#0B0D10 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background-image:
        linear-gradient(rgba(244,241,232,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(244,241,232,.035) 1px, transparent 1px);
      background-size:18px 18px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.92), rgba(0,0,0,.16));
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.18;
      background:repeating-linear-gradient(0deg, transparent 0 7px, rgba(255,255,255,.035) 8px);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(82,240,177,.35);color:var(--text)}
    :focus-visible{
      outline:3px solid rgba(82,240,177,.72);
      outline-offset:3px;
      border-radius:10px;
    }

    .container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid var(--line);
      background:rgba(11,13,16,.84);
      backdrop-filter:blur(16px);
    }
    .nav{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:800;
      letter-spacing:.01em;
    }
    .brand-mark{
      width:34px;
      height:34px;
      position:relative;
      flex:0 0 auto;
      border:1px solid rgba(82,240,177,.62);
      background:
        linear-gradient(90deg, transparent 0 7px, rgba(82,240,177,.18) 7px 14px, transparent 14px),
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
      box-shadow:inset 0 0 0 4px rgba(11,13,16,.78),0 0 0 1px rgba(255,255,255,.06);
      border-radius:10px;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      width:5px;
      height:5px;
      background:var(--primary);
      box-shadow:9px 0 0 rgba(82,240,177,.78),18px 0 0 rgba(255,184,107,.82);
      left:6px;
      top:14px;
    }
    .brand-mark::after{
      top:auto;
      bottom:-3px;
      left:auto;
      right:-3px;
      width:8px;
      height:8px;
      box-shadow:none;
      background:var(--accent);
    }
    .brand-text{
      font-size:17px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .nav-link{
      min-height:42px;
      display:inline-flex;
      align-items:center;
      padding:0 14px;
      color:var(--muted);
      border:1px solid transparent;
      border-radius:999px;
      font-size:14px;
      transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
    }
    .nav-link:hover,.nav-link.active{
      color:var(--text);
      border-color:rgba(82,240,177,.22);
      background:rgba(82,240,177,.07);
    }
    .nav-link:active{transform:translateY(1px)}
    .nav-cta{
      min-height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 16px;
      border:1px solid rgba(82,240,177,.48);
      border-radius:999px;
      color:#07100c;
      background:var(--primary);
      font-weight:700;
      font-size:14px;
      box-shadow:0 10px 28px rgba(82,240,177,.16);
      transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(82,240,177,.25);filter:saturate(1.08)}
    .nav-cta:active{transform:translateY(0)}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-radius:14px;
    }
    .menu-toggle span{
      display:block;
      width:18px;
      height:2px;
      background:var(--text);
      margin:5px auto;
      transition:transform var(--ease),opacity var(--ease);
    }

    .section{
      padding:86px 0;
      position:relative;
    }
    .section.compact{padding:64px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:30px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-size:13px;
      font-weight:800;
      letter-spacing:.06em;
      text-transform:uppercase;
      margin-bottom:10px;
    }
    .section-kicker::before{
      content:"";
      width:9px;
      height:9px;
      background:var(--primary);
      box-shadow:12px 0 0 rgba(82,240,177,.36);
    }
    .section-title{
      font-size:clamp(30px,4vw,43px);
      line-height:1.18;
      letter-spacing:-.04em;
      max-width:760px;
    }
    .section-desc{
      color:var(--muted);
      max-width:520px;
      font-size:16px;
    }

    .btn{
      min-height:48px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease);
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#06130d;
      background:var(--primary);
      border-color:rgba(82,240,177,.7);
      box-shadow:0 16px 38px rgba(82,240,177,.18);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 48px rgba(82,240,177,.26)}
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.035);
      border-color:var(--line);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(82,240,177,.38);background:rgba(82,240,177,.07)}
    .btn:active{transform:translateY(1px)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:28px;
      padding:3px 10px;
      border-radius:999px;
      border:1px solid rgba(244,241,232,.14);
      color:var(--muted);
      background:rgba(255,255,255,.035);
      font-size:13px;
      line-height:1.2;
    }
    .badge::before{
      content:"";
      width:6px;
      height:6px;
      background:var(--primary);
      box-shadow:0 0 0 3px rgba(82,240,177,.12);
    }
    .badge.orange::before{background:var(--accent);box-shadow:0 0 0 3px rgba(255,184,107,.12)}
    .pixel-card{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .pixel-card::before{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      top:0;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
    }
    .pixel-corner{
      position:absolute;
      right:14px;
      top:14px;
      width:13px;
      height:13px;
      border-top:2px solid rgba(82,240,177,.7);
      border-right:2px solid rgba(82,240,177,.7);
      opacity:.72;
    }

    .hero{
      padding:82px 0 60px;
    }
    .hero-panel{
      position:relative;
      min-height:560px;
      padding:54px;
      border:1px solid rgba(244,241,232,.16);
      border-radius:32px;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(82,240,177,.13), transparent 34%),
        radial-gradient(circle at 82% 18%, rgba(255,184,107,.12), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
      box-shadow:var(--shadow);
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:20px;
      border:1px solid rgba(244,241,232,.08);
      border-radius:24px;
      pointer-events:none;
    }
    .hero-grid{
      position:absolute;
      inset:0;
      opacity:.2;
      background-image:
        linear-gradient(rgba(82,240,177,.16) 1px, transparent 1px),
        linear-gradient(90deg, rgba(82,240,177,.16) 1px, transparent 1px);
      background-size:28px 28px;
      mask-image:linear-gradient(135deg, transparent 0%, #000 42%, transparent 100%);
    }
    .hero-content{
      position:relative;
      z-index:2;
      max-width:900px;
    }
    .path-badge{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 12px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid var(--line);
      background:rgba(11,13,16,.38);
      font-size:13px;
      margin-bottom:22px;
    }
    .path-badge i{
      width:7px;
      height:7px;
      display:inline-block;
      background:var(--primary);
      box-shadow:13px 0 0 rgba(255,184,107,.9);
    }
    h1{
      max-width:980px;
      font-size:clamp(36px,6.2vw,68px);
      line-height:1.06;
      letter-spacing:-.06em;
      margin-bottom:22px;
    }
    .hero-lead{
      max-width:760px;
      color:#D8D4C9;
      font-size:clamp(17px,2vw,20px);
      line-height:1.85;
      margin-bottom:30px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-bottom:26px;
    }
    .hero-points{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:8px;
    }
    .lead-strip{
      position:absolute;
      left:54px;
      right:54px;
      bottom:46px;
      z-index:2;
      display:grid;
      grid-template-columns:1.1fr .9fr auto;
      gap:12px;
      align-items:end;
      padding:16px;
      border:1px solid rgba(82,240,177,.25);
      border-radius:22px;
      background:rgba(11,13,16,.72);
      backdrop-filter:blur(14px);
    }
    .lead-strip label{
      display:block;
      color:var(--muted);
      font-size:13px;
      margin-bottom:6px;
    }
    .lead-strip input,.lead-strip select{
      width:100%;
      min-height:48px;
      border:1px solid var(--line);
      border-radius:14px;
      background:rgba(255,255,255,.045);
      color:var(--text);
      padding:0 14px;
      outline:none;
      transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    .lead-strip select option{background:#111318;color:var(--text)}
    .lead-strip input:focus,.lead-strip select:focus{
      border-color:rgba(82,240,177,.7);
      box-shadow:0 0 0 4px rgba(82,240,177,.12);
      background:rgba(82,240,177,.055);
    }
    .hero-note{
      position:absolute;
      right:44px;
      top:42px;
      z-index:2;
      width:186px;
      padding:16px;
      border-radius:20px;
      border:1px solid rgba(255,184,107,.24);
      background:rgba(255,184,107,.07);
    }
    .hero-note strong{
      display:block;
      font-family:var(--mono);
      font-size:25px;
      line-height:1.1;
      color:var(--accent);
      margin-bottom:6px;
    }
    .hero-note span{color:var(--muted);font-size:13px;line-height:1.55;display:block}

    .play-layout{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:22px;
      align-items:stretch;
    }
    .play-intro{
      padding:30px;
    }
    .play-intro h3{
      font-size:26px;
      line-height:1.25;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .play-intro p{color:var(--muted);margin-bottom:20px}
    .step-list{
      display:grid;
      gap:12px;
      margin-top:20px;
    }
    .step-row{
      display:grid;
      grid-template-columns:44px 1fr;
      gap:12px;
      align-items:start;
      padding:14px;
      border:1px solid rgba(244,241,232,.11);
      border-radius:16px;
      background:rgba(255,255,255,.026);
    }
    .step-no{
      width:36px;
      height:36px;
      display:grid;
      place-items:center;
      color:#06130d;
      background:var(--primary);
      border-radius:12px;
      font-family:var(--mono);
      font-weight:900;
    }
    .step-row strong{display:block;margin-bottom:2px}
    .step-row span{display:block;color:var(--muted);font-size:14px;line-height:1.6}
    .matrix{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .matrix-card{
      min-height:168px;
      padding:22px;
      transition:transform var(--ease),border-color var(--ease),background var(--ease);
    }
    .matrix-card:hover{
      transform:translateY(-2px);
      border-color:rgba(82,240,177,.38);
      background:linear-gradient(180deg,rgba(82,240,177,.06),rgba(255,255,255,.025));
    }
    .matrix-icon{
      width:36px;
      height:36px;
      margin-bottom:14px;
      border:1px solid rgba(82,240,177,.35);
      border-radius:12px;
      background:
        linear-gradient(90deg, transparent 0 11px, rgba(82,240,177,.28) 11px 14px, transparent 14px),
        rgba(82,240,177,.06);
      position:relative;
    }
    .matrix-icon::after{
      content:"";
      position:absolute;
      width:7px;
      height:7px;
      right:6px;
      bottom:6px;
      background:var(--accent);
    }
    .matrix-card h3{
      font-size:20px;
      margin-bottom:8px;
      letter-spacing:-.02em;
    }
    .matrix-card p{
      color:var(--muted);
      font-size:15px;
      line-height:1.65;
    }
    .matrix-card a{
      display:inline-flex;
      margin-top:14px;
      color:var(--primary);
      font-weight:800;
      font-size:14px;
    }
    .matrix-card a:hover{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}

    .reward-board{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:18px;
      align-items:stretch;
    }
    .metrics{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .metric-card{
      padding:22px;
      min-height:164px;
      transition:transform var(--ease),border-color var(--ease);
    }
    .metric-card:hover{transform:translateY(-2px);border-color:rgba(82,240,177,.35)}
    .metric-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-bottom:14px;
    }
    .metric-label{color:var(--muted);font-size:14px}
    .metric-status{
      font-size:12px;
      color:var(--primary);
      border:1px solid rgba(82,240,177,.28);
      border-radius:999px;
      padding:2px 8px;
      background:rgba(82,240,177,.055);
    }
    .metric-number{
      font-family:var(--mono);
      font-size:40px;
      line-height:1;
      color:var(--text);
      letter-spacing:-.05em;
      margin-bottom:12px;
      text-shadow:0 0 18px rgba(82,240,177,.12);
    }
    .metric-card p{color:var(--muted);font-size:14px;line-height:1.65}
    .meter{
      height:8px;
      margin-top:16px;
      border-radius:999px;
      background:rgba(244,241,232,.08);
      overflow:hidden;
    }
    .meter span{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--accent));
    }
    .reward-note{
      padding:30px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:24px;
      background:
        radial-gradient(circle at 85% 12%,rgba(82,240,177,.11),transparent 32%),
        linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025));
    }
    .reward-note h3{
      font-size:30px;
      line-height:1.22;
      letter-spacing:-.04em;
      margin-bottom:12px;
    }
    .reward-note p{color:var(--muted)}
    .mini-terminal{
      border:1px solid rgba(244,241,232,.12);
      border-radius:16px;
      overflow:hidden;
      background:rgba(0,0,0,.22);
      font-family:var(--mono);
      font-size:13px;
    }
    .terminal-bar{
      display:flex;
      gap:6px;
      padding:10px 12px;
      border-bottom:1px solid rgba(244,241,232,.1);
    }
    .terminal-bar i{width:7px;height:7px;background:var(--primary);display:block}
    .terminal-bar i:nth-child(2){background:var(--accent)}
    .terminal-bar i:nth-child(3){background:var(--muted)}
    .terminal-lines{padding:14px;color:var(--muted);line-height:1.8}
    .terminal-lines b{color:var(--primary);font-weight:700}

    .progress-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
      align-items:stretch;
    }
    .compare-card{
      padding:28px;
    }
    .compare-card.before{
      opacity:.88;
      background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.018));
    }
    .compare-card.after{
      border-color:rgba(82,240,177,.36);
      background:linear-gradient(180deg,rgba(82,240,177,.08),rgba(255,255,255,.024));
    }
    .compare-card h3{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      font-size:24px;
      margin-bottom:20px;
    }
    .compare-tag{
      font-size:12px;
      color:var(--muted);
      border:1px solid rgba(244,241,232,.14);
      padding:3px 8px;
      border-radius:999px;
      font-family:var(--mono);
      letter-spacing:.06em;
    }
    .compare-card.after .compare-tag{color:var(--primary);border-color:rgba(82,240,177,.32)}
    .compare-list{
      list-style:none;
      display:grid;
      gap:12px;
    }
    .compare-list li{
      display:grid;
      grid-template-columns:18px 1fr;
      gap:10px;
      color:var(--muted);
      padding-bottom:12px;
      border-bottom:1px dashed rgba(244,241,232,.12);
    }
    .compare-list li:last-child{border-bottom:0;padding-bottom:0}
    .compare-list li::before{
      content:"";
      width:9px;
      height:9px;
      margin-top:10px;
      background:rgba(244,241,232,.28);
    }
    .after .compare-list li::before{background:var(--primary);box-shadow:0 0 0 4px rgba(82,240,177,.12)}
    .progress-rail{
      margin-top:22px;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:6px;
    }
    .rail-cell{
      min-height:42px;
      border:1px solid rgba(244,241,232,.12);
      border-radius:10px;
      background:rgba(255,255,255,.028);
      display:grid;
      place-items:center;
      color:var(--muted);
      font-family:var(--mono);
      font-size:12px;
    }
    .after .rail-cell:nth-child(-n+3){
      color:#06130d;
      background:var(--primary);
      border-color:rgba(82,240,177,.6);
      font-weight:900;
    }

    .guard-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
    }
    .guard-item{
      padding:20px;
      min-height:150px;
      transition:transform var(--ease),border-color var(--ease);
    }
    .guard-item:hover{transform:translateY(-2px);border-color:rgba(255,184,107,.35)}
    .guard-item strong{
      display:block;
      font-size:18px;
      margin:12px 0 7px;
    }
    .guard-item p{color:var(--muted);font-size:14px;line-height:1.65}
    .guard-dot{
      width:22px;
      height:22px;
      background:
        linear-gradient(90deg, var(--primary) 0 7px, transparent 7px 9px, var(--accent) 9px 16px, transparent 16px),
        rgba(255,255,255,.04);
      border-radius:7px;
      border:1px solid rgba(244,241,232,.14);
    }

    .news-layout{
      display:grid;
      grid-template-columns:1fr 330px;
      gap:18px;
      align-items:start;
    }
    .news-list{
      display:grid;
      gap:12px;
    }
    .news-item{
      display:grid;
      grid-template-columns:112px 1fr auto;
      gap:18px;
      align-items:center;
      padding:18px;
      transition:transform var(--ease),border-color var(--ease),background var(--ease);
    }
    .news-item:hover{
      transform:translateY(-2px);
      border-color:rgba(82,240,177,.35);
      background:linear-gradient(180deg,rgba(82,240,177,.055),rgba(255,255,255,.025));
    }
    .news-date{
      min-height:78px;
      border:1px solid rgba(244,241,232,.12);
      border-radius:15px;
      display:grid;
      place-items:center;
      color:var(--muted);
      font-family:var(--mono);
      font-size:13px;
      background:rgba(0,0,0,.18);
      text-align:center;
      padding:8px;
    }
    .news-title{
      font-size:20px;
      line-height:1.35;
      margin-bottom:7px;
      letter-spacing:-.02em;
    }
    .news-title a{
      background:linear-gradient(var(--primary),var(--primary)) left bottom / 0 2px no-repeat;
      transition:color var(--ease),background-size var(--ease);
    }
    .news-title a:hover{
      color:var(--primary);
      background-size:100% 2px;
    }
    .news-summary{
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .news-meta{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:12px;
    }
    .arrow{
      width:36px;
      height:36px;
      border:1px solid rgba(82,240,177,.26);
      border-radius:12px;
      display:grid;
      place-items:center;
      color:var(--primary);
      transition:background var(--ease),transform var(--ease);
    }
    .news-item:hover .arrow{background:rgba(82,240,177,.12);transform:translateX(2px)}
    .news-side{
      padding:24px;
      position:sticky;
      top:96px;
    }
    .news-side h3{
      font-size:22px;
      margin-bottom:12px;
      letter-spacing:-.02em;
    }
    .news-side p{color:var(--muted);font-size:15px;margin-bottom:18px}
    .side-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .empty-state{
      padding:34px;
      text-align:center;
      border:1px dashed rgba(82,240,177,.32);
      border-radius:var(--radius-lg);
      background:rgba(82,240,177,.045);
    }
    .empty-icon{
      width:52px;
      height:52px;
      margin:0 auto 14px;
      border:1px solid rgba(82,240,177,.38);
      border-radius:16px;
      background:
        linear-gradient(90deg,transparent 0 14px,rgba(82,240,177,.32) 14px 20px,transparent 20px),
        rgba(255,255,255,.035);
    }
    .empty-state p{color:var(--muted);margin-bottom:16px}

    .faq-list{
      display:grid;
      gap:12px;
      max-width:940px;
      margin-inline:auto;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(255,255,255,.032);
      overflow:hidden;
      transition:border-color var(--ease),background var(--ease);
    }
    .faq-item.open{
      border-color:rgba(82,240,177,.36);
      background:rgba(82,240,177,.045);
    }
    .faq-question{
      width:100%;
      min-height:66px;
      display:grid;
      grid-template-columns:26px 1fr 28px;
      gap:12px;
      align-items:center;
      padding:18px 20px;
      border:0;
      color:var(--text);
      background:transparent;
      text-align:left;
      font-weight:800;
      font-size:17px;
    }
    .faq-qmark{
      width:22px;
      height:22px;
      display:grid;
      place-items:center;
      border:1px solid rgba(82,240,177,.35);
      color:var(--primary);
      border-radius:7px;
      font-family:var(--mono);
      font-size:13px;
    }
    .faq-plus{
      width:24px;
      height:24px;
      position:relative;
      border:1px solid rgba(244,241,232,.18);
      border-radius:8px;
    }
    .faq-plus::before,.faq-plus::after{
      content:"";
      position:absolute;
      background:var(--primary);
      left:6px;
      right:6px;
      top:11px;
      height:2px;
    }
    .faq-plus::after{
      top:6px;
      bottom:6px;
      left:11px;
      right:auto;
      width:2px;
      height:auto;
      transition:transform var(--ease),opacity var(--ease);
    }
    .faq-item.open .faq-plus::after{opacity:0;transform:rotate(90deg)}
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height 240ms ease;
    }
    .faq-answer p{
      padding:0 20px 20px 58px;
      color:var(--muted);
      line-height:1.8;
    }

    .join-panel{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:18px;
      align-items:stretch;
      padding:24px;
    }
    .join-copy{
      padding:22px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:26px;
    }
    .join-copy h2{
      font-size:clamp(30px,4vw,44px);
      line-height:1.12;
      letter-spacing:-.05em;
      margin-bottom:14px;
    }
    .join-copy p{color:var(--muted);max-width:520px}
    .hint-list{
      display:grid;
      gap:10px;
      margin-top:18px;
    }
    .hint-list li{
      list-style:none;
      display:flex;
      gap:10px;
      color:var(--muted);
      align-items:flex-start;
    }
    .hint-list li::before{
      content:"";
      width:8px;
      height:8px;
      background:var(--primary);
      margin-top:10px;
      flex:0 0 auto;
    }
    .contact-form{
      padding:24px;
      border:1px solid rgba(244,241,232,.12);
      border-radius:22px;
      background:rgba(0,0,0,.18);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .form-field.full{grid-column:1/-1}
    .form-field label{
      display:block;
      font-size:14px;
      color:var(--muted);
      margin-bottom:7px;
    }
    .form-field input,.form-field select,.form-field textarea{
      width:100%;
      border:1px solid var(--line);
      border-radius:14px;
      background:rgba(255,255,255,.045);
      color:var(--text);
      padding:0 14px;
      min-height:50px;
      outline:none;
      transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    .form-field textarea{
      min-height:126px;
      resize:vertical;
      padding-top:12px;
    }
    .form-field select option{background:#111318;color:var(--text)}
    .form-field input::placeholder,.form-field textarea::placeholder{color:rgba(167,169,159,.62)}
    .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
      border-color:rgba(82,240,177,.72);
      box-shadow:0 0 0 4px rgba(82,240,177,.12);
      background:rgba(82,240,177,.05);
    }
    .form-note{
      color:var(--muted-2);
      font-size:13px;
      line-height:1.6;
      margin-top:12px;
    }
    .form-message{
      display:none;
      margin-top:12px;
      padding:10px 12px;
      border-radius:12px;
      border:1px solid rgba(255,184,107,.28);
      background:rgba(255,184,107,.07);
      color:var(--accent);
      font-size:14px;
    }
    .form-message.show{display:block}
    .form-actions{
      margin-top:16px;
      display:flex;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
    }

    .site-footer{
      border-top:1px solid var(--line);
      padding:42px 0 34px;
      background:
        linear-gradient(90deg,rgba(82,240,177,.11) 0 1px,transparent 1px 18px),
        rgba(5,6,8,.56);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-size:18px;
      font-weight:900;
      margin-bottom:10px;
    }
    .footer-desc{
      color:var(--muted);
      max-width:620px;
      font-size:14px;
    }
    .footer-links{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      padding:6px 9px;
      border-radius:10px;
      transition:color var(--ease),background var(--ease);
    }
    .footer-links a:hover{color:var(--primary);background:rgba(82,240,177,.06)}
    .copyright{
      margin-top:26px;
      padding-top:18px;
      border-top:1px solid rgba(244,241,232,.09);
      color:var(--muted-2);
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }

    .reveal{
      opacity:0;
      transform:translateY(14px);
      transition:opacity 500ms ease,transform 500ms ease;
    }
    .reveal.visible{opacity:1;transform:translateY(0)}

    @media (max-width:1024px){
      .hero-panel{padding:42px;min-height:620px}
      .hero-note{position:relative;right:auto;top:auto;width:auto;margin:24px 0 0;max-width:360px}
      .lead-strip{left:42px;right:42px;grid-template-columns:1fr 1fr}
      .lead-strip .btn{grid-column:1/-1}
      .play-layout,.reward-board,.progress-wrap,.news-layout,.join-panel{grid-template-columns:1fr}
      .news-side{position:relative;top:auto}
      .guard-strip{grid-template-columns:repeat(2,1fr)}
    }

    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav{height:68px}
      .brand-text{font-size:15px;max-width:220px}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        top:68px;
        left:14px;
        right:14px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border:1px solid var(--line);
        border-radius:18px;
        background:rgba(11,13,16,.96);
        box-shadow:var(--shadow-soft);
      }
      .site-header.open .nav-links{display:flex}
      .nav-link,.nav-cta{width:100%;justify-content:center}
      .section{padding:64px 0}
      .section-head{display:block}
      .section-desc{margin-top:10px}
      .hero{padding:46px 0 40px}
      .hero-panel{padding:28px;min-height:auto;border-radius:24px}
      .hero-panel::before{inset:12px;border-radius:18px}
      .hero-content{padding-bottom:0}
      .hero-actions .btn{width:100%}
      .lead-strip{
        position:relative;
        left:auto;
        right:auto;
        bottom:auto;
        margin-top:28px;
        grid-template-columns:1fr;
      }
      .matrix,.metrics{grid-template-columns:1fr}
      .guard-strip{grid-template-columns:1fr}
      .news-item{
        grid-template-columns:1fr;
        align-items:start;
      }
      .news-date{
        min-height:auto;
        width:max-content;
        padding:8px 12px;
      }
      .news-meta{
        flex-direction:row;
        align-items:center;
        justify-content:space-between;
      }
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (max-width:520px){
      body{line-height:1.68}
      .section{padding:54px 0}
      .hero-panel{padding:22px}
      h1{letter-spacing:-.045em}
      .path-badge{font-size:12px}
      .hero-lead{font-size:16px}
      .btn{width:100%;white-space:normal;text-align:center}
      .lead-strip{padding:12px}
      .play-intro,.reward-note,.compare-card,.join-copy,.contact-form{padding:20px}
      .pixel-card{border-radius:18px}
      .section-title{font-size:29px}
      .metric-number{font-size:34px}
      .faq-question{grid-template-columns:24px 1fr 24px;padding:16px;font-size:16px}
      .faq-answer p{padding:0 16px 18px 52px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --bg:#0B0D10;
      --bg-soft:#111318;
      --bg-card:#171A20;
      --bg-card-2:rgba(255,255,255,.045);
      --text:#F4F1E8;
      --muted:#A7A99F;
      --muted-2:#777B73;
      --line:rgba(244,241,232,.14);
      --line-strong:rgba(82,240,177,.36);
      --primary:#52F0B1;
      --primary-2:#66E3C4;
      --accent:#FFB86B;
      --danger:#FF8A6B;
      --shadow:0 22px 70px rgba(0,0,0,.42);
      --shadow-soft:0 14px 40px rgba(0,0,0,.28);
      --radius-xl:26px;
      --radius-lg:20px;
      --radius-md:15px;
      --radius-sm:12px;
      --container:1180px;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
      --ease:160ms ease;
    }
    *{box-sizing:border-box}
    *::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 16% 8%, rgba(82,240,177,.16), transparent 32%),
        radial-gradient(circle at 86% 18%, rgba(255,184,107,.10), transparent 26%),
        linear-gradient(180deg,#0B0D10 0%,#101217 46%,#0B0D10 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      background-image:
        linear-gradient(rgba(244,241,232,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(244,241,232,.035) 1px, transparent 1px);
      background-size:18px 18px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.92), rgba(0,0,0,.16));
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.18;
      background:repeating-linear-gradient(0deg, transparent 0 7px, rgba(255,255,255,.035) 8px);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    input,select,textarea{color:var(--text)}
    ::selection{background:rgba(82,240,177,.28);color:var(--text)}
    :focus-visible{outline:2px solid var(--primary);outline-offset:4px}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid var(--line);
      background:rgba(11,13,16,.84);
      backdrop-filter:blur(16px);
    }
    .nav{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:800;
      letter-spacing:.01em;
    }
    .brand-mark{
      width:34px;
      height:34px;
      position:relative;
      flex:0 0 auto;
      border:1px solid rgba(82,240,177,.62);
      background:
        linear-gradient(90deg, transparent 0 7px, rgba(82,240,177,.18) 7px 14px, transparent 14px),
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
      box-shadow:inset 0 0 0 4px rgba(11,13,16,.78),0 0 0 1px rgba(255,255,255,.06);
      border-radius:10px;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      width:5px;
      height:5px;
      background:var(--primary);
      box-shadow:9px 0 0 rgba(82,240,177,.78),18px 0 0 rgba(255,184,107,.82);
      left:6px;
      top:14px;
    }
    .brand-mark::after{
      top:auto;
      bottom:-3px;
      left:auto;
      right:-3px;
      width:8px;
      height:8px;
      box-shadow:none;
      background:var(--accent);
    }
    .brand-text{
      font-size:17px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .nav-link{
      min-height:42px;
      display:inline-flex;
      align-items:center;
      padding:0 14px;
      color:var(--muted);
      border:1px solid transparent;
      border-radius:999px;
      font-size:14px;
      transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
    }
    .nav-link:hover,.nav-link.active{
      color:var(--text);
      border-color:rgba(82,240,177,.22);
      background:rgba(82,240,177,.07);
    }
    .nav-link:active{transform:translateY(1px)}
    .nav-cta{
      min-height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 16px;
      border:1px solid rgba(82,240,177,.48);
      border-radius:999px;
      color:#07100c;
      background:var(--primary);
      font-weight:700;
      font-size:14px;
      box-shadow:0 10px 28px rgba(82,240,177,.16);
      transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(82,240,177,.25);filter:saturate(1.08)}
    .nav-cta:active{transform:translateY(0)}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-radius:14px;
    }
    .menu-toggle span{
      display:block;
      width:18px;
      height:2px;
      background:var(--text);
      margin:5px auto;
      transition:transform var(--ease),opacity var(--ease);
    }
    .btn{
      min-height:48px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid var(--line);
      font-weight:800;
      font-size:14px;
      transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease);
    }
    .btn-primary{
      background:var(--primary);
      border-color:rgba(82,240,177,.72);
      color:#06110c;
      box-shadow:0 16px 42px rgba(82,240,177,.17);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 50px rgba(82,240,177,.26)}
    .btn-secondary{
      background:rgba(255,255,255,.035);
      color:var(--text);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      border-color:rgba(82,240,177,.36);
      background:rgba(82,240,177,.07);
    }
    .btn:active{transform:translateY(0)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      width:max-content;
      max-width:100%;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(82,240,177,.24);
      background:rgba(82,240,177,.075);
      color:var(--primary-2);
      font-size:13px;
      font-weight:800;
      line-height:1.2;
    }
    .badge::before{
      content:"";
      width:7px;
      height:7px;
      background:var(--primary);
      box-shadow:9px 0 0 rgba(82,240,177,.32);
    }
    .site-main{position:relative}
    .article-topbar{
      border-bottom:1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(244,241,232,.06), rgba(82,240,177,.07), rgba(244,241,232,.03));
    }
    .breadcrumb{
      min-height:56px;
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      white-space:nowrap;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .breadcrumb::-webkit-scrollbar{display:none}
    .breadcrumb a{
      color:var(--muted);
      transition:color var(--ease);
    }
    .breadcrumb a:hover{color:var(--primary)}
    .crumb-sep{
      width:6px;
      height:6px;
      flex:0 0 auto;
      background:rgba(82,240,177,.7);
      box-shadow:9px 0 0 rgba(255,184,107,.52);
      margin-right:9px;
    }
    .breadcrumb-current{
      color:var(--text);
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .article-hero{
      padding:56px 0 34px;
      background:
        linear-gradient(180deg, rgba(244,241,232,.035), transparent 72%),
        linear-gradient(90deg, rgba(82,240,177,.06), transparent 44%);
    }
    .article-hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 310px;
      gap:38px;
      align-items:end;
    }
    .article-title-wrap{
      max-width:880px;
    }
    .article-kicker{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:18px;
    }
    .article-h1{
      margin:0;
      font-size:clamp(34px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.055em;
      max-width:900px;
    }
    .article-summary{
      margin:18px 0 0;
      max-width:820px;
      color:var(--muted);
      font-size:17px;
      line-height:1.85;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
      color:var(--muted);
      font-size:13px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 10px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.035);
    }
    .meta-pill strong{color:var(--text);font-weight:800}
    .reading-panel{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.026));
      box-shadow:var(--shadow-soft);
      padding:20px;
    }
    .reading-panel::before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(90deg, transparent 0 12px, rgba(82,240,177,.06) 12px 13px, transparent 13px 26px),
        radial-gradient(circle at 88% 12%, rgba(82,240,177,.18), transparent 34%);
      opacity:.85;
    }
    .reading-panel>*{position:relative}
    .panel-label{
      color:var(--primary);
      font-size:13px;
      font-weight:900;
      letter-spacing:.08em;
    }
    .panel-number{
      margin:12px 0 4px;
      font-family:var(--mono);
      font-size:34px;
      line-height:1;
      color:var(--text);
    }
    .panel-text{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .pixel-bars{
      display:grid;
      grid-template-columns:1fr 1.4fr .7fr 1.1fr;
      gap:5px;
      margin-top:18px;
    }
    .pixel-bars span{
      height:7px;
      background:rgba(82,240,177,.24);
      border-radius:99px;
    }
    .pixel-bars span:nth-child(2){background:rgba(82,240,177,.72)}
    .pixel-bars span:nth-child(3){background:rgba(255,184,107,.70)}
    .layout{
      padding:54px 0 88px;
    }
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 300px;
      gap:42px;
      align-items:start;
    }
    .article-shell{
      min-width:0;
    }
    .article-card{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:rgba(17,19,24,.74);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .article-card-head{
      height:9px;
      display:grid;
      grid-template-columns:1.2fr .65fr .32fr 2fr;
      gap:4px;
      padding:0 18px;
      align-items:center;
      background:rgba(255,255,255,.035);
    }
    .article-card-head span{
      height:3px;
      border-radius:99px;
      background:rgba(82,240,177,.32);
    }
    .article-card-head span:nth-child(2){background:rgba(255,184,107,.42)}
    .article-card-head span:nth-child(3){background:rgba(244,241,232,.22)}
    .article-body{
      padding:42px 46px 48px;
      font-size:17px;
      line-height:1.86;
      color:rgba(244,241,232,.92);
    }
    .article-body h2{
      margin:2.1em 0 .72em;
      font-size:clamp(25px,3vw,33px);
      line-height:1.24;
      letter-spacing:-.035em;
      color:var(--text);
    }
    .article-body h3{
      margin:1.8em 0 .6em;
      font-size:22px;
      line-height:1.32;
      color:var(--text);
    }
    .article-body h4{
      margin:1.6em 0 .5em;
      font-size:19px;
      color:var(--text);
    }
    .article-body p{margin:0 0 1.2em}
    .article-body a{
      color:var(--primary-2);
      border-bottom:1px solid rgba(82,240,177,.28);
      transition:color var(--ease),border-color var(--ease),background var(--ease);
    }
    .article-body a:hover{
      color:var(--primary);
      border-color:rgba(82,240,177,.86);
      background:rgba(82,240,177,.06);
    }
    .article-body ul,.article-body ol{
      margin:0 0 1.35em;
      padding-left:1.35em;
    }
    .article-body li{margin:.42em 0}
    .article-body blockquote{
      margin:1.6em 0;
      padding:18px 20px 18px 22px;
      border-left:4px solid var(--primary);
      border-radius:0 var(--radius-md) var(--radius-md) 0;
      background:rgba(82,240,177,.06);
      color:rgba(244,241,232,.9);
      position:relative;
    }
    .article-body blockquote::before{
      content:"";
      position:absolute;
      left:-8px;
      top:18px;
      width:8px;
      height:8px;
      background:var(--accent);
    }
    .article-body img{
      margin:1.8em auto;
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:var(--shadow-soft);
    }
    .article-body figure{margin:1.8em 0}
    .article-body figcaption{
      margin-top:10px;
      color:var(--muted-2);
      font-size:13px;
      text-align:center;
    }
    .article-body table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:1.8em 0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:16px;
      display:block;
      max-width:100%;
      overflow-x:auto;
      background:rgba(255,255,255,.025);
    }
    .article-body th,.article-body td{
      min-width:140px;
      padding:12px 14px;
      border-bottom:1px solid rgba(244,241,232,.1);
      border-right:1px solid rgba(244,241,232,.08);
      text-align:left;
      vertical-align:top;
    }
    .article-body th{
      color:var(--text);
      background:rgba(82,240,177,.08);
      font-weight:900;
    }
    .article-body tr:last-child td{border-bottom:0}
    .article-body pre{
      margin:1.6em 0;
      padding:18px;
      overflow:auto;
      border:1px solid var(--line);
      border-radius:16px;
      background:#080A0D;
      color:#d8efe6;
      font-family:var(--mono);
      font-size:14px;
      line-height:1.7;
    }
    .article-body code{
      font-family:var(--mono);
      padding:.12em .38em;
      border-radius:7px;
      background:rgba(82,240,177,.09);
      color:var(--primary-2);
      font-size:.92em;
    }
    .article-body pre code{
      padding:0;
      background:transparent;
      color:inherit;
    }
    .empty-state{
      text-align:center;
      padding:42px 18px;
    }
    .empty-icon{
      width:48px;
      height:48px;
      margin:0 auto 18px;
      border:1px solid rgba(82,240,177,.48);
      border-radius:14px;
      background:
        linear-gradient(90deg, rgba(82,240,177,.16) 0 10px, transparent 10px 20px),
        rgba(255,255,255,.04);
      position:relative;
    }
    .empty-icon::after{
      content:"";
      position:absolute;
      width:8px;
      height:8px;
      right:-4px;
      bottom:-4px;
      background:var(--accent);
    }
    .empty-state h2{
      margin:0 0 10px;
      font-size:28px;
      letter-spacing:-.03em;
    }
    .empty-state p{
      margin:0 auto 22px;
      color:var(--muted);
      max-width:460px;
    }
    .side-stack{
      position:sticky;
      top:100px;
      display:grid;
      gap:16px;
    }
    .side-card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.04);
      box-shadow:var(--shadow-soft);
      padding:20px;
    }
    .side-card h2,.side-card h3{
      margin:0 0 12px;
      font-size:18px;
      line-height:1.35;
      letter-spacing:-.02em;
    }
    .side-card p{
      margin:0 0 14px;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .side-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .side-list li{
      display:flex;
      align-items:flex-start;
      gap:9px;
      color:var(--muted);
      font-size:14px;
      line-height:1.6;
    }
    .side-list li::before{
      content:"";
      width:7px;
      height:7px;
      margin-top:8px;
      flex:0 0 auto;
      background:var(--primary);
      box-shadow:8px 0 0 rgba(82,240,177,.25);
    }
    .mini-form{
      display:grid;
      gap:12px;
    }
    .field label{
      display:block;
      margin-bottom:7px;
      color:var(--text);
      font-size:13px;
      font-weight:800;
    }
    .field input,.field select,.field textarea{
      width:100%;
      border:1px solid var(--line);
      border-radius:14px;
      background:rgba(11,13,16,.72);
      padding:12px 13px;
      min-height:46px;
      transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    .field textarea{min-height:112px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{
      outline:none;
      border-color:rgba(82,240,177,.66);
      box-shadow:0 0 0 4px rgba(82,240,177,.08);
      background:rgba(11,13,16,.9);
    }
    .form-note{
      color:var(--muted-2);
      font-size:12px;
      line-height:1.65;
      margin:0;
    }
    .section{
      padding:78px 0;
      position:relative;
    }
    .section.compact{padding:58px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:28px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-size:13px;
      font-weight:800;
      letter-spacing:.06em;
      margin-bottom:10px;
    }
    .section-kicker::before{
      content:"";
      width:9px;
      height:9px;
      background:var(--primary);
      box-shadow:12px 0 0 rgba(82,240,177,.36);
    }
    .section-title{
      margin:0;
      font-size:clamp(30px,4vw,42px);
      line-height:1.18;
      letter-spacing:-.04em;
      max-width:760px;
    }
    .section-desc{
      margin:0;
      color:var(--muted);
      max-width:520px;
      font-size:16px;
    }
    .related-grid{
      display:grid;
      grid-template-columns:1fr;
      gap:14px;
    }
    .info-item{
      display:grid;
      grid-template-columns:112px minmax(0,1fr) auto;
      gap:18px;
      align-items:center;
      padding:18px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.038);
      transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
    }
    .info-item:hover{
      transform:translateY(-2px);
      border-color:rgba(82,240,177,.34);
      background:rgba(82,240,177,.055);
      box-shadow:var(--shadow-soft);
    }
    .info-time{
      font-family:var(--mono);
      color:var(--accent);
      font-size:13px;
      border-right:1px solid var(--line);
      min-height:58px;
      display:flex;
      align-items:center;
    }
    .info-main h3{
      margin:0 0 6px;
      font-size:20px;
      line-height:1.34;
      letter-spacing:-.02em;
    }
    .info-main p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }
    .info-action{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--primary);
      font-size:14px;
      font-weight:900;
      white-space:nowrap;
    }
    .info-action::after{
      content:"";
      width:8px;
      height:8px;
      background:var(--primary);
      box-shadow:10px 0 0 rgba(82,240,177,.28);
    }
    .faq-wrap{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.038);
      overflow:hidden;
      transition:border-color var(--ease),background var(--ease);
    }
    .faq-item.is-open{
      border-color:rgba(82,240,177,.36);
      background:rgba(82,240,177,.045);
    }
    .faq-question{
      width:100%;
      min-height:62px;
      padding:0 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      border:0;
      background:transparent;
      color:var(--text);
      text-align:left;
      font-weight:900;
    }
    .faq-question span:first-child{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .faq-question span:first-child::before{
      content:"?";
      width:24px;
      height:24px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      border:1px solid rgba(82,240,177,.36);
      color:var(--primary);
      border-radius:8px;
      font-family:var(--mono);
    }
    .faq-plus{
      width:18px;
      height:18px;
      position:relative;
      flex:0 0 auto;
    }
    .faq-plus::before,.faq-plus::after{
      content:"";
      position:absolute;
      inset:auto 0 8px 0;
      height:2px;
      background:var(--primary);
      transition:transform var(--ease);
    }
    .faq-plus::after{transform:rotate(90deg)}
    .faq-item.is-open .faq-plus::after{transform:rotate(0deg)}
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height 220ms ease;
    }
    .faq-answer p{
      margin:0;
      padding:0 20px 20px 56px;
      color:var(--muted);
      line-height:1.85;
    }
    .cta-band{
      border:1px solid rgba(82,240,177,.24);
      border-radius:var(--radius-xl);
      padding:28px;
      background:
        linear-gradient(135deg, rgba(82,240,177,.13), rgba(255,255,255,.035) 44%, rgba(255,184,107,.08)),
        rgba(255,255,255,.035);
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:22px;
      align-items:center;
      position:relative;
      overflow:hidden;
    }
    .cta-band::after{
      content:"";
      position:absolute;
      right:24px;
      top:24px;
      width:58px;
      height:58px;
      border:1px solid rgba(82,240,177,.26);
      border-radius:18px;
      background:
        linear-gradient(90deg, transparent 0 12px, rgba(82,240,177,.14) 12px 24px, transparent 24px);
      opacity:.6;
    }
    .cta-band h2{
      margin:0 0 8px;
      font-size:clamp(24px,3vw,34px);
      line-height:1.2;
      letter-spacing:-.035em;
      position:relative;
      z-index:1;
    }
    .cta-band p{
      margin:0;
      color:var(--muted);
      max-width:710px;
      position:relative;
      z-index:1;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
      position:relative;
      z-index:1;
    }
    .site-footer{
      padding:44px 0 30px;
      border-top:1px solid var(--line);
      background:rgba(7,9,12,.82);
      position:relative;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      top:0;
      left:0;
      right:0;
      height:3px;
      background:linear-gradient(90deg, transparent, rgba(82,240,177,.6), rgba(255,184,107,.46), transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer-desc{
      margin:0;
      color:var(--muted);
      max-width:680px;
      font-size:14px;
      line-height:1.8;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px 18px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      transition:color var(--ease);
    }
    .footer-links a:hover{color:var(--primary)}
    .copyright{
      margin-top:30px;
      padding-top:18px;
      border-top:1px solid rgba(244,241,232,.1);
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      color:var(--muted-2);
      font-size:13px;
    }
    @media (max-width:1024px){
      .article-hero-grid{grid-template-columns:1fr}
      .reading-panel{max-width:520px}
      .article-layout{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
      .cta-band{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--container))}
      .nav{height:68px}
      .brand-text{font-size:15px;max-width:58vw}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        top:68px;
        left:14px;
        right:14px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border:1px solid var(--line);
        border-radius:18px;
        background:rgba(11,13,16,.96);
        box-shadow:var(--shadow);
      }
      .site-header.is-open .nav-links{display:flex}
      .site-header.is-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
      .site-header.is-open .menu-toggle span:nth-child(2){opacity:0}
      .site-header.is-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
      .nav-link,.nav-cta{width:100%;justify-content:center}
      .article-hero{padding:42px 0 28px}
      .article-summary{font-size:16px}
      .article-body{padding:30px 22px 34px;font-size:16px;line-height:1.82}
      .side-stack{grid-template-columns:1fr}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-desc{margin-top:10px}
      .info-item{grid-template-columns:1fr;gap:10px}
      .info-time{
        min-height:auto;
        border-right:0;
        border-bottom:1px solid var(--line);
        padding-bottom:8px;
      }
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:520px){
      .brand-text{max-width:50vw}
      .breadcrumb{font-size:12px}
      .article-h1{font-size:32px;letter-spacing:-.04em}
      .article-meta{display:grid;grid-template-columns:1fr}
      .reading-panel{padding:17px}
      .article-body{padding:24px 16px 30px;border-radius:18px}
      .article-card{border-radius:20px}
      .cta-band{padding:22px}
      .cta-actions .btn{width:100%}
      .faq-question{padding:0 16px}
      .faq-answer p{padding:0 16px 18px 48px}
      .copyright{display:grid}
    }