/* roulang page: index */
:root{
      --bg:#0f0c14;
      --bg-2:#14101b;
      --bg-3:#1a1624;
      --surface:rgba(23, 20, 32, .88);
      --surface-2:rgba(32, 28, 44, .9);
      --line:rgba(232, 228, 255, .12);
      --line-strong:rgba(183, 164, 255, .26);
      --text:#f2efff;
      --muted:#b7b0cb;
      --soft:#958db1;
      --primary:#b26cff;
      --primary-2:#6cf0d8;
      --accent:#ff74c9;
      --accent-2:#6db5ff;
      --warn:#ff9f6c;
      --ok:#77f1aa;
      --shadow:0 18px 48px rgba(0,0,0,.38);
      --shadow-soft:0 10px 24px rgba(0,0,0,.22);
      --radius:22px;
      --radius-sm:16px;
      --radius-xs:12px;
      --container:1180px;
      --gap:24px;
      --gap-sm:16px;
      --gap-xs:10px;
      --t:.28s cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","HarmonyOS Sans","Noto Sans CJK SC",sans-serif;
      background:
        radial-gradient(circle at 14% 14%, rgba(178,108,255,.18), transparent 24%),
        radial-gradient(circle at 86% 18%, rgba(108,240,216,.12), transparent 20%),
        radial-gradient(circle at 50% 100%, rgba(255,116,201,.10), transparent 24%),
        linear-gradient(180deg, #0d0b11 0%, #11101a 42%, #0c0b10 100%);
      color:var(--text);
      line-height:1.7;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      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:72px 72px;
      opacity:.28;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.85), rgba(0,0,0,.2) 72%, rgba(0,0,0,0));
      z-index:0;
    }
    a{color:inherit;text-decoration:none;transition:color var(--t), border-color var(--t), background var(--t), transform var(--t), box-shadow var(--t), opacity var(--t)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(178,108,255,.32);color:#fff}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
      position:relative;
      z-index:1;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg, rgba(15,12,20,.92), rgba(15,12,20,.72));
      border-bottom:1px solid rgba(255,255,255,.05);
    }
    .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:78px;
      padding:14px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:14px;
      min-width:0;
    }
    .brand-mark{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      background:
        radial-gradient(circle at 32% 28%, rgba(255,255,255,.26), transparent 28%),
        linear-gradient(145deg, rgba(178,108,255,1), rgba(108,240,216,.85));
      color:#120d18;
      font-weight:800;
      box-shadow:0 10px 20px rgba(178,108,255,.25), inset 0 0 0 1px rgba(255,255,255,.12);
      flex:0 0 auto;
      letter-spacing:.04em;
    }
    .brand-text{min-width:0}
    .brand-text strong{
      display:block;
      font-size:1.05rem;
      line-height:1.15;
      letter-spacing:.02em;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      display:block;
      color:var(--muted);
      font-size:.88rem;
      margin-top:2px;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:12px 14px;
      border-radius:999px;
      border:1px solid transparent;
      color:var(--muted);
      background:transparent;
      white-space:nowrap;
      font-size:.95rem;
      letter-spacing:.01em;
    }
    .nav-link .ico{
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.05);
      color:var(--text);
      border:1px solid rgba(255,255,255,.06);
      flex:0 0 auto;
      font-size:.95rem;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:var(--text);
      border-color:rgba(178,108,255,.34);
      background:rgba(178,108,255,.10);
      box-shadow:0 0 0 4px rgba(178,108,255,.08);
      outline:none;
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:var(--text);
      border-color:rgba(108,240,216,.3);
      background:linear-gradient(135deg, rgba(178,108,255,.16), rgba(108,240,216,.10));
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
    }
    .menu-btn{
      display:none;
      width:46px;height:46px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:16px;
      background:rgba(255,255,255,.03);
      color:var(--text);
      cursor:pointer;
      align-items:center;
      justify-content:center;
      transition:transform var(--t), background var(--t), border-color var(--t);
    }
    .menu-btn:hover,
    .menu-btn:focus-visible{
      transform:translateY(-1px);
      background:rgba(178,108,255,.12);
      border-color:rgba(178,108,255,.28);
      outline:none;
    }
    .menu-lines{
      width:18px;
      height:12px;
      position:relative;
    }
    .menu-lines i{
      position:absolute;
      left:0;
      width:100%;
      height:2px;
      border-radius:999px;
      background:currentColor;
      transition:transform var(--t), top var(--t), opacity var(--t);
    }
    .menu-lines i:nth-child(1){top:0}
    .menu-lines i:nth-child(2){top:5px}
    .menu-lines i:nth-child(3){top:10px}

    .site-main{padding:20px 0 48px}
    .section{
      padding:22px 0;
      position:relative;
    }
    .section + .section{margin-top:8px}
    .section-shell{
      background:linear-gradient(180deg, rgba(26,22,36,.56), rgba(17,15,24,.36));
      border:1px solid rgba(255,255,255,.06);
      border-radius:calc(var(--radius) + 4px);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      position:relative;
    }
    .section-shell::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg, rgba(255,255,255,.04), transparent 26%, rgba(255,255,255,.02) 100%);
      pointer-events:none;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      padding:26px 26px 0;
    }
    .section-head .title-block{max-width:760px}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:.82rem;
      letter-spacing:.08em;
      text-transform:uppercase;
      color:rgba(242,239,255,.86);
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.06);
      border-radius:999px;
      padding:8px 12px;
      margin-bottom:12px;
    }
    .eyebrow .dot{
      width:7px;height:7px;border-radius:50%;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 0 0 4px rgba(178,108,255,.15);
    }
    .section h2{
      margin:0;
      font-size:clamp(1.35rem, 1.1rem + 1vw, 2rem);
      line-height:1.2;
      letter-spacing:.01em;
    }
    .section-desc{
      margin:12px 0 0;
      color:var(--muted);
      max-width:780px;
      font-size:.98rem;
    }
    .section-action{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }

    .hero{
      padding-top:16px;
    }
    .hero-shell{
      padding:24px;
      border-radius:28px;
      background:
        radial-gradient(circle at 18% 12%, rgba(178,108,255,.24), transparent 24%),
        radial-gradient(circle at 84% 16%, rgba(108,240,216,.16), transparent 22%),
        linear-gradient(145deg, rgba(22,19,30,.94), rgba(16,13,22,.88));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-shell::after{
      content:"";
      position:absolute;
      inset:auto -12% -18% auto;
      width:260px;height:260px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,116,201,.18), rgba(255,116,201,0) 70%);
      filter:blur(4px);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:22px;
      align-items:stretch;
      position:relative;
      z-index:1;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:100%;
    }
    .brand-badge{
      display:inline-flex;
      align-items:center;
      gap:10px;
      align-self:flex-start;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:rgba(242,239,255,.92);
      font-size:.86rem;
      margin-bottom:14px;
    }
    .brand-badge em{
      font-style:normal;
      color:var(--primary-2);
      font-weight:700;
    }
    .hero h1{
      margin:0;
      font-size:clamp(2rem, 1.1rem + 2.7vw, 4.05rem);
      line-height:1.06;
      letter-spacing:-.03em;
      max-width:12ch;
    }
    .hero p.lead{
      margin:16px 0 0;
      color:var(--muted);
      font-size:1.02rem;
      max-width:62ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:0 18px;
      border-radius:14px;
      border:1px solid transparent;
      cursor:pointer;
      font-weight:700;
      letter-spacing:.01em;
      transition:transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t), color var(--t), filter var(--t);
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--primary), var(--accent));
      color:#120d18;
      box-shadow:0 16px 28px rgba(178,108,255,.22);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      transform:translateY(-2px);
      box-shadow:0 18px 34px rgba(178,108,255,.28), 0 0 0 4px rgba(178,108,255,.12);
      outline:none;
      filter:saturate(1.02);
    }
    .btn-secondary{
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-color:rgba(255,255,255,.10);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      transform:translateY(-2px);
      background:rgba(255,255,255,.08);
      border-color:rgba(108,240,216,.18);
      box-shadow:0 0 0 4px rgba(108,240,216,.08);
      outline:none;
    }
    .btn-ghost{
      background:transparent;
      color:var(--muted);
      border-color:rgba(255,255,255,.10);
    }
    .btn-ghost:hover,
    .btn-ghost:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.18);
      outline:none;
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.07);
      color:var(--muted);
      font-size:.88rem;
    }
    .pill .num{
      color:var(--text);
      font-weight:800;
      letter-spacing:.04em;
    }
    .hero-card-stack{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:14px;
      align-content:stretch;
    }
    .hero-card{
      border-radius:24px;
      background:linear-gradient(180deg, rgba(34,30,48,.92), rgba(22,18,31,.92));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04), 0 18px 32px rgba(0,0,0,.18);
      position:relative;
      overflow:hidden;
    }
    .hero-card.large{
      padding:18px;
      min-height:280px;
      grid-row:span 2;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .hero-card.small{
      padding:16px;
      min-height:132px;
    }
    .profile{
      display:flex;
      align-items:center;
      gap:14px;
      margin-bottom:16px;
    }
    .avatar{
      width:58px;height:58px;border-radius:20px;
      background:
        radial-gradient(circle at 28% 28%, rgba(255,255,255,.22), transparent 30%),
        linear-gradient(145deg, rgba(108,240,216,.95), rgba(178,108,255,.9));
      display:grid;
      place-items:center;
      color:#120d18;
      font-size:1.45rem;
      font-weight:900;
      box-shadow:0 12px 26px rgba(108,240,216,.20);
      flex:0 0 auto;
    }
    .profile h3{
      margin:0;
      font-size:1.08rem;
      line-height:1.2;
    }
    .profile p{
      margin:4px 0 0;
      color:var(--muted);
      font-size:.88rem;
    }
    .highlight-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin-top:10px;
    }
    .mini-stat{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .mini-stat strong{
      display:block;
      font-size:1.25rem;
      line-height:1.1;
      letter-spacing:-.02em;
    }
    .mini-stat span{
      display:block;
      margin-top:7px;
      color:var(--muted);
      font-size:.86rem;
    }
    .floating-tag{
      position:absolute;
      top:16px;
      right:16px;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(108,240,216,.12);
      color:rgba(232,255,251,.96);
      border:1px solid rgba(108,240,216,.22);
      font-size:.82rem;
    }
    .hero-card .card-title{
      margin:0 0 8px;
      font-size:1rem;
      letter-spacing:.01em;
    }
    .hero-card .card-desc{
      margin:0;
      color:var(--muted);
      font-size:.9rem;
    }
    .spark{
      margin-top:auto;
      display:flex;
      align-items:flex-end;
      gap:10px;
      height:54px;
      padding-top:16px;
    }
    .spark i{
      display:block;
      width:14px;
      border-radius:999px;
      background:linear-gradient(180deg, rgba(108,240,216,.55), rgba(178,108,255,.88));
      box-shadow:0 0 0 1px rgba(255,255,255,.04);
      opacity:.92;
    }
    .spark i:nth-child(1){height:24px}
    .spark i:nth-child(2){height:40px}
    .spark i:nth-child(3){height:30px}
    .spark i:nth-child(4){height:50px}
    .spark i:nth-child(5){height:20px}
    .spark-label{
      margin-top:12px;
      color:var(--muted);
      font-size:.84rem;
      display:flex;
      justify-content:space-between;
      gap:10px;
    }

    .service-grid{
      display:grid;
      grid-template-columns:1.2fr .9fr .9fr;
      gap:16px;
      padding:24px 26px 28px;
    }
    .service-card{
      padding:18px;
      border-radius:24px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
      min-height:162px;
      position:relative;
      overflow:hidden;
      transition:transform var(--t), border-color var(--t), box-shadow var(--t), background var(--t);
    }
    .service-card:hover{
      transform:translateY(-4px);
      border-color:rgba(178,108,255,.28);
      box-shadow:0 16px 30px rgba(0,0,0,.16);
      background:linear-gradient(180deg, rgba(178,108,255,.12), rgba(255,255,255,.03));
    }
    .service-card.wide{grid-row:span 2; min-height:340px}
    .service-icon{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      font-weight:800;
      margin-bottom:14px;
    }
    .service-card h3{
      margin:0 0 8px;
      font-size:1.05rem;
    }
    .service-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .service-list{
      margin:14px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .service-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:rgba(242,239,255,.9);
      font-size:.9rem;
    }
    .service-list li::before{
      content:"";
      width:8px;height:8px;
      margin-top:.52em;
      border-radius:999px;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      flex:0 0 auto;
      box-shadow:0 0 0 4px rgba(178,108,255,.09);
    }
    .service-mini{
      margin-top:16px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      color:var(--muted);
      font-size:.84rem;
    }
    .chip strong{color:var(--text);font-weight:700}

    .metrics-wrap{
      padding:24px 26px 28px;
      display:grid;
      grid-template-columns:1.04fr .96fr;
      gap:18px;
      align-items:stretch;
    }
    .metrics-bar{
      padding:18px;
      border-radius:24px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .metrics-row{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:12px;
      margin-bottom:18px;
    }
    .metric{
      padding:16px;
      border-radius:18px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
    }
    .metric strong{
      display:block;
      font-size:1.8rem;
      line-height:1;
      letter-spacing:-.03em;
      font-variant-numeric:tabular-nums;
    }
    .metric span{
      display:block;
      margin-top:8px;
      color:var(--muted);
      font-size:.88rem;
    }
    .meter-list{
      display:grid;
      gap:14px;
    }
    .meter{
      display:grid;
      gap:8px;
    }
    .meter-head{
      display:flex;
      justify-content:space-between;
      gap:12px;
      color:rgba(242,239,255,.92);
      font-size:.92rem;
    }
    .meter-track{
      position:relative;
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.07);
      overflow:hidden;
    }
    .meter-track span{
      position:absolute;
      inset:0 auto 0 0;
      width:var(--w);
      border-radius:inherit;
      background:linear-gradient(90deg, var(--primary-2), var(--primary), var(--accent));
      box-shadow:0 0 16px rgba(178,108,255,.22);
    }
    .metrics-note{
      padding:18px;
      border-radius:24px;
      background:
        radial-gradient(circle at 16% 18%, rgba(108,240,216,.12), transparent 26%),
        linear-gradient(180deg, rgba(31,27,42,.96), rgba(21,18,29,.96));
      border:1px solid rgba(255,255,255,.07);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:14px;
    }
    .metrics-note h3{
      margin:0;
      font-size:1.04rem;
    }
    .metrics-note p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .note-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .note-tags .tag{
      padding:8px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      font-size:.84rem;
    }

    .showcase-wrap{
      padding:24px 26px 28px;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:18px;
    }
    .showcase-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:14px;
    }
    .story-card{
      min-height:210px;
      padding:18px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.08);
      background:
        radial-gradient(circle at top right, rgba(178,108,255,.17), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      position:relative;
      overflow:hidden;
      transition:transform var(--t), border-color var(--t), box-shadow var(--t);
    }
    .story-card:hover{
      transform:translateY(-4px);
      border-color:rgba(108,240,216,.22);
      box-shadow:0 16px 32px rgba(0,0,0,.2);
    }
    .story-top{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:flex-start;
      margin-bottom:18px;
    }
    .story-code{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:var(--muted);
      font-size:.82rem;
    }
    .rarity{
      color:var(--primary-2);
      font-weight:800;
      font-size:.82rem;
      letter-spacing:.08em;
    }
    .story-card h3{
      margin:0 0 8px;
      font-size:1.1rem;
    }
    .story-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .story-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }
    .story-tags span{
      padding:6px 9px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.07);
      color:rgba(242,239,255,.88);
      font-size:.8rem;
    }
    .sidebar-card{
      padding:18px;
      border-radius:24px;
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .side-block{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .side-block h3{
      margin:0 0 8px;
      font-size:1rem;
    }
    .side-block p{
      margin:0;
      color:var(--muted);
      font-size:.9rem;
    }
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:12px;
    }
    .tag-cloud a{
      padding:8px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      font-size:.84rem;
    }
    .tag-cloud a:hover,
    .tag-cloud a:focus-visible{
      background:rgba(108,240,216,.10);
      border-color:rgba(108,240,216,.24);
      outline:none;
      transform:translateY(-1px);
    }

    .plan-wrap{
      padding:24px 26px 28px;
      display:grid;
      grid-template-columns:.96fr 1.04fr;
      gap:18px;
    }
    .plan-steps{
      display:grid;
      gap:12px;
    }
    .step{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:14px;
      align-items:flex-start;
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .step-index{
      width:40px;height:40px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(178,108,255,.9), rgba(108,240,216,.72));
      color:#120d18;
      font-weight:900;
      box-shadow:0 12px 22px rgba(178,108,255,.18);
      flex:0 0 auto;
    }
    .step h3{margin:0;font-size:1rem}
    .step p{margin:7px 0 0;color:var(--muted);font-size:.92rem}
    .scenario-panel{
      padding:18px;
      border-radius:24px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03)),
        radial-gradient(circle at 85% 8%, rgba(255,116,201,.10), transparent 18%);
      border:1px solid rgba(255,255,255,.07);
      display:grid;
      gap:14px;
    }
    .scenario-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
    }
    .scenario-head h3{
      margin:0;
      font-size:1.08rem;
    }
    .scenario-head p{
      margin:6px 0 0;
      color:var(--muted);
      font-size:.92rem;
    }
    .scenario-list{
      display:grid;
      gap:10px;
    }
    .scenario-item{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
      color:rgba(242,239,255,.9);
      font-size:.92rem;
    }
    .scenario-item .bullet{
      width:10px;height:10px;border-radius:50%;
      background:linear-gradient(135deg, var(--primary-2), var(--accent));
      box-shadow:0 0 0 4px rgba(108,240,216,.10);
      flex:0 0 auto;
    }
    .scenario-footer{
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      margin-top:2px;
      color:var(--muted);
      font-size:.88rem;
    }

    .updates-wrap{
      padding:24px 26px 28px;
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:18px;
      align-items:start;
    }
    .updates-feed{
      display:grid;
      gap:12px;
    }
    .update-item{
      display:grid;
      grid-template-columns:1fr auto;
      gap:14px;
      align-items:start;
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
      transition:transform var(--t), border-color var(--t), background var(--t);
    }
    .update-item:hover{
      transform:translateY(-3px);
      border-color:rgba(178,108,255,.26);
      background:rgba(178,108,255,.07);
    }
    .update-item h3{
      margin:0 0 8px;
      font-size:1.03rem;
      line-height:1.35;
    }
    .update-item h3 a{
      color:var(--text);
    }
    .update-item h3 a:hover,
    .update-item h3 a:focus-visible{
      color:var(--primary-2);
      outline:none;
    }
    .update-item p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .update-meta{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      margin-top:12px;
      font-size:.82rem;
      color:var(--muted);
    }
    .meta-chip{
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.07);
    }
    .update-arrow{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:var(--primary-2);
      flex:0 0 auto;
      margin-top:2px;
      transition:transform var(--t), background var(--t), border-color var(--t);
    }
    .update-item:hover .update-arrow{
      transform:translateX(2px);
      background:rgba(108,240,216,.10);
      border-color:rgba(108,240,216,.22);
    }
    .empty-state{
      padding:22px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px dashed rgba(255,255,255,.12);
      color:var(--muted);
      text-align:center;
      font-size:.96rem;
    }
    .updates-side{
      display:grid;
      gap:12px;
    }
    .recommend-card{
      padding:18px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
    }
    .recommend-card h3{
      margin:0 0 8px;
      font-size:1rem;
    }
    .recommend-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .recommend-list{
      margin:14px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .recommend-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:rgba(242,239,255,.9);
      font-size:.9rem;
    }
    .recommend-list li::before{
      content:"•";
      color:var(--primary-2);
      font-weight:900;
      line-height:1.4;
    }

    .faq-wrap{
      padding:24px 26px 28px;
      display:grid;
      grid-template-columns:1fr;
      gap:12px;
    }
    .faq-item{
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
      overflow:hidden;
    }
    .faq-btn{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      padding:18px;
      color:var(--text);
      background:none;
      border:0;
      cursor:pointer;
      text-align:left;
    }
    .faq-btn span{
      font-weight:700;
      font-size:1rem;
      line-height:1.45;
    }
    .faq-btn i{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      flex:0 0 auto;
      transition:transform var(--t), background var(--t);
    }
    .faq-item.open .faq-btn i{transform:rotate(45deg);background:rgba(108,240,216,.10)}
    .faq-panel{
      max-height:0;
      overflow:hidden;
      transition:max-height .32s ease;
      border-top:1px solid rgba(255,255,255,.06);
    }
    .faq-panel .inner{
      padding:0 18px 18px;
      color:var(--muted);
      font-size:.94rem;
    }

    .contact-wrap{
      padding:24px 26px 28px;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:18px;
    }
    .contact-form{
      padding:18px;
      border-radius:24px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .field-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .field{
      display:grid;
      gap:8px;
      margin-bottom:12px;
    }
    .field label{
      color:rgba(242,239,255,.92);
      font-size:.9rem;
    }
    .input,
    .textarea{
      width:100%;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(14,12,19,.72);
      color:var(--text);
      padding:13px 14px;
      outline:none;
      transition:border-color var(--t), box-shadow var(--t), background var(--t), transform var(--t);
    }
    .input:focus,
    .textarea:focus{
      border-color:rgba(108,240,216,.32);
      box-shadow:0 0 0 4px rgba(108,240,216,.08);
      background:rgba(14,12,19,.86);
    }
    .textarea{
      min-height:132px;
      resize:vertical;
    }
    .form-note{
      color:var(--muted);
      font-size:.86rem;
      margin-top:10px;
    }
    .contact-side{
      display:grid;
      gap:12px;
    }
    .contact-card{
      padding:18px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.07);
    }
    .contact-card h3{
      margin:0 0 8px;
      font-size:1rem;
    }
    .contact-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .contact-stats{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
      margin-top:12px;
    }
    .contact-stat{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .contact-stat strong{
      display:block;
      font-size:1.18rem;
      line-height:1;
    }
    .contact-stat span{
      display:block;
      margin-top:8px;
      color:var(--muted);
      font-size:.84rem;
    }
    .status-box{
      padding:14px 16px;
      border-radius:16px;
      background:rgba(108,240,216,.08);
      border:1px solid rgba(108,240,216,.16);
      color:rgba(234,255,249,.96);
      font-size:.92rem;
      min-height:52px;
      display:flex;
      align-items:center;
    }

    .site-footer{
      padding:20px 0 34px;
      position:relative;
      z-index:1;
    }
    .footer-shell{
      border-top:1px solid rgba(255,255,255,.08);
      padding-top:18px;
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:16px;
      align-items:start;
    }
    .footer-brand strong{
      display:block;
      font-size:1.02rem;
      margin-bottom:8px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      max-width:68ch;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      padding:8px 11px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      color:var(--text);
      font-size:.84rem;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      border-color:rgba(178,108,255,.28);
      background:rgba(178,108,255,.10);
      outline:none;
      transform:translateY(-1px);
    }
    .copyright{
      grid-column:1 / -1;
      color:var(--soft);
      font-size:.84rem;
      margin-top:10px;
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      padding-top:12px;
      border-top:1px solid rgba(255,255,255,.05);
    }

    .sticky-cta{
      position:fixed;
      right:18px;
      bottom:18px;
      z-index:30;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .sticky-cta a{
      width:48px;height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(178,108,255,.92), rgba(108,240,216,.74));
      color:#120d18;
      font-weight:900;
      box-shadow:0 16px 26px rgba(0,0,0,.28);
      border:1px solid rgba(255,255,255,.12);
    }
    .sticky-cta a:hover,
    .sticky-cta a:focus-visible{
      transform:translateY(-2px);
      outline:none;
    }

    .section.note-strip .section-shell{
      border-style:dashed;
    }

    @media (max-width: 1024px){
      .hero-grid,
      .metrics-wrap,
      .showcase-wrap,
      .plan-wrap,
      .updates-wrap,
      .contact-wrap{
        grid-template-columns:1fr;
      }
      .service-grid{
        grid-template-columns:1fr 1fr;
      }
      .service-card.wide{grid-row:auto;min-height:220px;grid-column:1 / -1}
      .hero-card-stack{grid-template-columns:1fr 1fr}
      .footer-shell{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width: 768px){
      .header-inner{
        align-items:flex-start;
      }
      .menu-btn{display:inline-flex}
      .nav-wrap{
        position:relative;
      }
      .nav{
        position:absolute;
        right:0;
        top:58px;
        width:min(320px, calc(100vw - 24px));
        padding:10px;
        border-radius:22px;
        background:rgba(18,15,25,.96);
        border:1px solid rgba(255,255,255,.08);
        box-shadow:var(--shadow);
        flex-direction:column;
        align-items:stretch;
        opacity:0;
        transform:translateY(-8px) scale(.98);
        pointer-events:none;
        transition:opacity var(--t), transform var(--t);
      }
      .site-header.nav-open .nav{
        opacity:1;
        transform:translateY(0) scale(1);
        pointer-events:auto;
      }
      .nav-link{
        width:100%;
        justify-content:flex-start;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .service-grid,
      .metrics-row,
      .showcase-grid,
      .field-grid,
      .contact-stats{
        grid-template-columns:1fr;
      }
      .hero-card-stack{grid-template-columns:1fr}
      .hero-card.large{grid-row:auto;min-height:auto}
      .hero-shell{padding:18px}
      .section-shell{border-radius:24px}
      .section-head,
      .service-grid,
      .metrics-wrap,
      .showcase-wrap,
      .plan-wrap,
      .updates-wrap,
      .faq-wrap,
      .contact-wrap{
        padding-left:18px;
        padding-right:18px;
      }
      .section-head{padding-top:20px}
    }
    @media (max-width: 520px){
      .container{width:min(100% - 20px, var(--container))}
      .header-inner{
        min-height:70px;
        gap:12px;
      }
      .brand-mark{
        width:42px;height:42px;border-radius:14px;
      }
      .brand-text strong{font-size:.98rem}
      .brand-text span{font-size:.8rem}
      .hero h1{
        max-width:100%;
        font-size:clamp(1.8rem, 1.2rem + 5vw, 2.6rem);
      }
      .hero p.lead{font-size:.96rem}
      .hero-actions .btn{
        width:100%;
      }
      .hero-meta{
        gap:8px;
      }
      .pill{
        width:100%;
        justify-content:space-between;
      }
      .service-card,
      .metric,
      .story-card,
      .step,
      .update-item,
      .recommend-card,
      .contact-form,
      .contact-card,
      .side-block,
      .metrics-bar,
      .metrics-note,
      .scenario-panel{
        border-radius:18px;
      }
      .update-item{
        grid-template-columns:1fr;
      }
      .update-arrow{
        margin-top:6px;
      }
      .btn{
        width:100%;
      }
      .footer-links a{
        width:100%;
        justify-content:center;
      }
      .footer-links{
        width:100%;
      }
      .sticky-cta{
        right:12px;
        bottom:12px;
      }
      .sticky-cta a{
        width:46px;height:46px;
      }
    }

    /* focus visibility */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible{
      outline:none;
    }
    .skip-link{
      position:absolute;
      left:-9999px;
      top:auto;
      width:1px;
      height:1px;
      overflow:hidden;
    }
    .skip-link:focus{
      left:16px;
      top:16px;
      width:auto;
      height:auto;
      padding:10px 14px;
      background:#fff;
      color:#111;
      border-radius:12px;
      z-index:100;
    }

/* roulang page: article */
:root{
      --bg:#0f0c14;
      --bg-2:#14101b;
      --bg-3:#1a1624;
      --surface:rgba(23, 20, 32, .88);
      --surface-2:rgba(32, 28, 44, .9);
      --line:rgba(232, 228, 255, .12);
      --line-strong:rgba(183, 164, 255, .26);
      --text:#f2efff;
      --muted:#b7b0cb;
      --soft:#958db1;
      --primary:#b26cff;
      --primary-2:#6cf0d8;
      --accent:#ff74c9;
      --accent-2:#6db5ff;
      --warn:#ff9f6c;
      --ok:#77f1aa;
      --shadow:0 18px 48px rgba(0,0,0,.38);
      --shadow-soft:0 10px 24px rgba(0,0,0,.22);
      --radius:22px;
      --radius-sm:16px;
      --radius-xs:12px;
      --container:1180px;
      --gap:24px;
      --gap-sm:16px;
      --gap-xs:10px;
      --t:.28s cubic-bezier(.2,.8,.2,1);
    }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
      margin:0;
      font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","HarmonyOS Sans","Noto Sans CJK SC",sans-serif;
      background:
        radial-gradient(circle at 14% 14%, rgba(178,108,255,.18), transparent 24%),
        radial-gradient(circle at 86% 18%, rgba(108,240,216,.12), transparent 20%),
        radial-gradient(circle at 50% 100%, rgba(255,116,201,.10), transparent 24%),
        linear-gradient(180deg, #0d0b11 0%, #11101a 42%, #0c0b10 100%);
      color:var(--text);
      line-height:1.7;
      overflow-x:hidden;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
  body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      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:72px 72px;
      opacity:.28;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.85), rgba(0,0,0,.2) 72%, rgba(0,0,0,0));
      z-index:0;
    }
  body::after{
      content:"";
      position:fixed;
      inset:auto -12% -20% -12%;
      height:40vh;
      pointer-events:none;
      background:radial-gradient(circle at 50% 50%, rgba(178,108,255,.12), transparent 55%);
      filter:blur(20px);
      opacity:.8;
      z-index:0;
    }
  a{
      color:inherit;
      text-decoration:none;
      transition:color var(--t), border-color var(--t), background var(--t), transform var(--t), box-shadow var(--t), opacity var(--t), filter var(--t);
    }
  a:hover{color:var(--text)}
  img{max-width:100%;display:block}
  button,input,textarea,select{font:inherit}
  button{border:0}
  ::selection{background:rgba(178,108,255,.34);color:#fff}
  .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
      position:relative;
      z-index:1;
    }

  .site-header{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg, rgba(15,12,20,.92), rgba(15,12,20,.72));
      border-bottom:1px solid rgba(255,255,255,.05);
    }
  .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:78px;
      padding:14px 0;
    }
  .brand{
      display:flex;
      align-items:center;
      gap:14px;
      min-width:0;
    }
  .brand-mark{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      background:
        radial-gradient(circle at 32% 28%, rgba(255,255,255,.26), transparent 28%),
        linear-gradient(145deg, rgba(178,108,255,1), rgba(108,240,216,.85));
      color:#120d18;
      font-weight:800;
      box-shadow:0 10px 20px rgba(178,108,255,.25), inset 0 0 0 1px rgba(255,255,255,.12);
      flex:0 0 auto;
      letter-spacing:.04em;
      text-transform:uppercase;
    }
  .brand-text{min-width:0}
  .brand-text strong{
      display:block;
      font-size:1.05rem;
      line-height:1.15;
      letter-spacing:.02em;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
  .brand-text span{
      display:block;
      color:var(--muted);
      font-size:.88rem;
      margin-top:2px;
    }
  .nav-wrap{
      display:flex;
      align-items:center;
      gap:12px;
      position:relative;
    }
  .nav{
      display:flex;
      align-items:center;
      gap:10px;
    }
  .nav-link{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:12px 14px;
      border-radius:999px;
      border:1px solid transparent;
      color:var(--muted);
      background:transparent;
      white-space:nowrap;
      font-size:.95rem;
      letter-spacing:.01em;
      outline:none;
    }
  .nav-link .ico{
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.05);
      color:var(--text);
      border:1px solid rgba(255,255,255,.06);
      flex:0 0 auto;
      font-size:.95rem;
      line-height:1;
    }
  .nav-link:hover,
  .nav-link:focus-visible{
      color:var(--text);
      border-color:rgba(178,108,255,.34);
      background:rgba(178,108,255,.10);
      box-shadow:0 0 0 4px rgba(178,108,255,.08);
      transform:translateY(-1px);
    }
  .nav-link.active{
      color:var(--text);
      border-color:rgba(108,240,216,.3);
      background:linear-gradient(135deg, rgba(178,108,255,.16), rgba(108,240,216,.10));
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
    }
  .menu-btn{
      display:none;
      width:46px;height:46px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:16px;
      background:rgba(255,255,255,.03);
      color:var(--text);
      cursor:pointer;
      align-items:center;
      justify-content:center;
      transition:transform var(--t), background var(--t), border-color var(--t), box-shadow var(--t);
    }
  .menu-btn:hover,
  .menu-btn:focus-visible{
      transform:translateY(-1px);
      background:rgba(178,108,255,.12);
      border-color:rgba(178,108,255,.28);
      box-shadow:0 0 0 4px rgba(178,108,255,.08);
      outline:none;
    }
  .menu-lines{
      width:18px;
      height:12px;
      position:relative;
      display:block;
    }
  .menu-lines i{
      position:absolute;
      left:0;
      width:100%;
      height:2px;
      border-radius:999px;
      background:currentColor;
      transition:transform var(--t), top var(--t), opacity var(--t);
    }
  .menu-lines i:nth-child(1){top:0}
  .menu-lines i:nth-child(2){top:5px}
  .menu-lines i:nth-child(3){top:10px}

  .site-main{
      padding:20px 0 56px;
      position:relative;
      z-index:1;
    }
  .section{
      padding:22px 0;
      position:relative;
    }
  .section + .section{margin-top:8px}
  .section-shell{
      background:linear-gradient(180deg, rgba(26,22,36,.58), rgba(17,15,24,.40));
      border:1px solid rgba(255,255,255,.06);
      border-radius:calc(var(--radius) + 4px);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      position:relative;
    }
  .section-shell::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(255,255,255,.05), transparent 28%, rgba(255,255,255,.02) 64%, transparent),
        radial-gradient(circle at 12% 12%, rgba(178,108,255,.08), transparent 20%);
      pointer-events:none;
    }
  .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:14px;
      margin-bottom:16px;
    }
  .section-head h2,
  .section-head h3{
      margin:0;
      font-size:1.2rem;
      line-height:1.25;
      letter-spacing:.02em;
    }
  .section-head p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
    }
  .eyebrow{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      margin-bottom:14px;
    }
  .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid rgba(183,164,255,.22);
      background:rgba(255,255,255,.04);
      color:var(--text);
      font-size:.8rem;
      line-height:1;
      letter-spacing:.02em;
      white-space:nowrap;
    }
  .badge.soft{
      color:var(--muted);
      border-color:rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
    }
  .badge.primary{
      color:#fff;
      border-color:rgba(178,108,255,.24);
      background:linear-gradient(135deg, rgba(178,108,255,.18), rgba(255,116,201,.10));
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
    }
  .badge.ok{
      color:#dfffee;
      border-color:rgba(119,241,170,.22);
      background:rgba(119,241,170,.08);
    }
  .badge.warn{
      color:#ffe9dc;
      border-color:rgba(255,159,108,.22);
      background:rgba(255,159,108,.08);
    }

  .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.01em;
      cursor:pointer;
      user-select:none;
      transition:transform var(--t), box-shadow var(--t), border-color var(--t), background var(--t), color var(--t), opacity var(--t);
      outline:none;
      white-space:nowrap;
    }
  .btn:hover,
  .btn:focus-visible{
      transform:translateY(-1px);
      outline:none;
    }
  .btn:active{
      transform:translateY(0);
      opacity:.96;
    }
  .btn-primary{
      color:#160f21;
      background:linear-gradient(135deg, var(--primary), #d18bff 48%, var(--primary-2));
      box-shadow:0 12px 28px rgba(178,108,255,.22), inset 0 0 0 1px rgba(255,255,255,.14);
    }
  .btn-primary:hover,
  .btn-primary:focus-visible{
      box-shadow:0 16px 36px rgba(178,108,255,.28), 0 0 0 4px rgba(178,108,255,.10);
      filter:saturate(1.04);
    }
  .btn-ghost{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.10);
    }
  .btn-ghost:hover,
  .btn-ghost:focus-visible{
      background:rgba(178,108,255,.10);
      border-color:rgba(178,108,255,.28);
      box-shadow:0 0 0 4px rgba(178,108,255,.08);
    }
  .btn-link{
      color:var(--primary-2);
      padding:0;
      min-height:auto;
      background:transparent;
      border:0;
      border-radius:0;
      font-weight:600;
    }
  .btn-link:hover,
  .btn-link:focus-visible{
      transform:none;
      color:#8df3e3;
      box-shadow:none;
    }

  .article-hero{
      padding-top:8px;
    }
  .article-banner{
      padding:26px;
    }
  .banner-grid{
      display:grid;
      grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);
      gap:22px;
      align-items:stretch;
      position:relative;
      z-index:1;
    }
  .banner-copy h1{
      margin:0;
      font-size:clamp(1.9rem, 2.8vw, 3.2rem);
      line-height:1.12;
      letter-spacing:.01em;
      max-width:12em;
    }
  .banner-copy .summary{
      margin:16px 0 0;
      color:var(--muted);
      font-size:1.02rem;
      line-height:1.85;
      max-width:64ch;
    }
  .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
  .meta-item{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:var(--muted);
      font-size:.92rem;
    }
  .meta-item strong{
      color:var(--text);
      font-weight:700;
    }
  .action-row{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
  .banner-side{
      display:flex;
      flex-direction:column;
      gap:14px;
      min-width:0;
    }
  .poster-card{
      flex:1;
      border-radius:24px;
      padding:18px;
      background:
        radial-gradient(circle at 20% 20%, rgba(178,108,255,.22), transparent 24%),
        radial-gradient(circle at 88% 18%, rgba(108,240,216,.18), transparent 20%),
        linear-gradient(180deg, rgba(26,21,38,.95), rgba(17,15,25,.90));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
      min-height:100%;
    }
  .poster-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(255,255,255,.07), transparent 24%, transparent 74%, rgba(255,255,255,.03)),
        radial-gradient(circle at 50% 10%, rgba(255,255,255,.08), transparent 30%);
      pointer-events:none;
    }
  .poster-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      position:relative;
      z-index:1;
    }
  .poster-ribbon{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      font-size:.84rem;
      letter-spacing:.02em;
    }
  .poster-ribbon .dot{
      width:9px;height:9px;border-radius:999px;
      background:linear-gradient(135deg, var(--warn), var(--accent));
      box-shadow:0 0 0 4px rgba(255,159,108,.12);
    }
  .poster-number{
      color:var(--soft);
      font-size:.82rem;
      letter-spacing:.14em;
      text-transform:uppercase;
    }
  .poster-title{
      margin:14px 0 8px;
      font-size:1.28rem;
      line-height:1.35;
      letter-spacing:.01em;
      position:relative;
      z-index:1;
    }
  .poster-text{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.8;
      position:relative;
      z-index:1;
    }
  .poster-stats{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:12px;
      margin-top:16px;
      position:relative;
      z-index:1;
    }
  .stat-box{
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
    }
  .stat-box strong{
      display:block;
      font-size:1.2rem;
      line-height:1.1;
      margin-bottom:6px;
    }
  .stat-box span{
      display:block;
      color:var(--muted);
      font-size:.86rem;
      line-height:1.6;
    }

  .notes-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:14px;
      padding:0;
    }
  .note-card{
      padding:18px;
      background:linear-gradient(180deg, rgba(25,21,34,.92), rgba(18,15,25,.82));
      border:1px solid rgba(255,255,255,.07);
      border-radius:20px;
      box-shadow:var(--shadow-soft);
      min-height:100%;
      position:relative;
      overflow:hidden;
    }
  .note-card::after{
      content:"";
      position:absolute;
      inset:auto -18px -18px auto;
      width:90px;
      height:90px;
      border-radius:999px;
      background:radial-gradient(circle, rgba(178,108,255,.14), transparent 68%);
      pointer-events:none;
    }
  .note-card .mini-ico{
      width:40px;height:40px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(178,108,255,.18), rgba(108,240,216,.12));
      border:1px solid rgba(183,164,255,.18);
      margin-bottom:12px;
      color:#fff;
      font-weight:800;
    }
  .note-card h3{
      margin:0 0 8px;
      font-size:1rem;
      line-height:1.35;
    }
  .note-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.8;
    }

  .content-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 320px;
      gap:var(--gap);
      align-items:start;
    }
  .article-body,
  .article-side,
  .related-shell{
      padding:24px;
    }
  .article-body{
      background:linear-gradient(180deg, rgba(24,20,34,.92), rgba(15,13,20,.84));
      border:1px solid rgba(255,255,255,.07);
      border-radius:calc(var(--radius) + 2px);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
  .article-topline{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      flex-wrap:wrap;
      margin-bottom:18px;
      padding-bottom:14px;
      border-bottom:1px solid rgba(255,255,255,.07);
      position:relative;
    }
  .article-topline .label{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--text);
      font-size:.92rem;
      font-weight:700;
    }
  .article-topline .label i{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary-2);
      box-shadow:0 0 0 4px rgba(108,240,216,.12);
      display:inline-block;
    }
  .article-topline .submeta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      color:var(--muted);
      font-size:.9rem;
    }
  .rich-text{
      max-width:760px;
      color:var(--text);
      font-size:1.02rem;
      line-height:1.95;
    }
  .rich-text > :first-child{margin-top:0}
  .rich-text > :last-child{margin-bottom:0}
  .rich-text p{
      margin:0 0 1.1em;
      color:#e9e5f8;
    }
  .rich-text h2,
  .rich-text h3,
  .rich-text h4{
      margin:1.65em 0 .75em;
      line-height:1.28;
      letter-spacing:.01em;
      color:#fff;
    }
  .rich-text h2{font-size:1.42rem}
  .rich-text h3{font-size:1.2rem}
  .rich-text h4{font-size:1.06rem}
  .rich-text ul,
  .rich-text ol{
      margin:0 0 1.2em 1.25em;
      padding:0;
      color:#e9e5f8;
    }
  .rich-text li{margin:.38em 0}
  .rich-text a{
      color:var(--primary-2);
      text-decoration:none;
      border-bottom:1px solid rgba(108,240,216,.28);
    }
  .rich-text a:hover,
  .rich-text a:focus-visible{
      color:#8df3e3;
      border-bottom-color:rgba(141,243,227,.55);
      outline:none;
    }
  .rich-text blockquote{
      margin:1.3em 0;
      padding:18px 18px 18px 20px;
      border-left:3px solid var(--primary);
      border-radius:18px;
      background:rgba(255,255,255,.04);
      color:#ddd7f2;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04);
    }
  .rich-text blockquote p{margin:0}
  .rich-text hr{
      border:0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent);
      margin:1.6em 0;
    }
  .rich-text img,
  .rich-text video,
  .rich-text iframe{
      max-width:100%;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      background:#100d16;
    }
  .rich-text figure{
      margin:1.2em 0;
    }
  .rich-text figcaption{
      margin-top:8px;
      color:var(--soft);
      font-size:.86rem;
    }
  .rich-text pre{
      margin:1.3em 0;
      padding:18px;
      border-radius:18px;
      overflow:auto;
      background:#0b0910;
      border:1px solid rgba(255,255,255,.08);
      color:#efe9ff;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.02);
    }
  .rich-text code{
      padding:.14em .45em;
      border-radius:8px;
      background:rgba(255,255,255,.06);
      color:#ffe8ff;
      font-size:.95em;
    }
  .rich-text pre code{
      padding:0;
      background:transparent;
    }
  .rich-text table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:1.2em 0;
      overflow:hidden;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.02);
      box-shadow:var(--shadow-soft);
    }
  .rich-text th,
  .rich-text td{
      padding:12px 14px;
      text-align:left;
      border-bottom:1px solid rgba(255,255,255,.06);
    }
  .rich-text th{
      background:rgba(255,255,255,.05);
      color:#fff;
      font-weight:700;
    }
  .rich-text tr:last-child td{border-bottom:0}

  .article-side{
      display:flex;
      flex-direction:column;
      gap:14px;
      position:sticky;
      top:94px;
    }
  .aside-card{
      padding:18px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(25,21,34,.92), rgba(18,15,25,.84));
      border:1px solid rgba(255,255,255,.07);
      box-shadow:var(--shadow-soft);
    }
  .aside-card h3{
      margin:0 0 12px;
      font-size:1rem;
      line-height:1.35;
    }
  .aside-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.8;
    }
  .toc-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
  .toc-list li{
      padding:12px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.06);
      color:#ece7fb;
      font-size:.92rem;
      line-height:1.6;
    }
  .chip-list{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
  .chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:var(--muted);
      font-size:.86rem;
      line-height:1;
    }
  .chip strong{color:var(--text)}
  .mini-links{
      display:grid;
      gap:10px;
      margin-top:10px;
    }
  .mini-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:12px 14px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      color:var(--text);
    }
  .mini-link:hover,
  .mini-link:focus-visible{
      background:rgba(178,108,255,.10);
      border-color:rgba(178,108,255,.28);
      box-shadow:0 0 0 4px rgba(178,108,255,.08);
      transform:translateY(-1px);
      outline:none;
    }
  .mini-link span{color:var(--muted);font-size:.9rem}

  .empty-state{
      padding:28px 8px 10px;
      text-align:left;
    }
  .empty-state h2{
      margin:0 0 10px;
      font-size:1.28rem;
      line-height:1.3;
    }
  .empty-state p{
      margin:0 0 18px;
      color:var(--muted);
      max-width:54ch;
      line-height:1.9;
    }

  .related-shell{
      padding:24px;
    }
  .related-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:14px;
      position:relative;
      z-index:1;
    }
  .related-card{
      display:flex;
      flex-direction:column;
      gap:12px;
      min-height:100%;
      padding:18px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(25,21,34,.92), rgba(18,15,25,.84));
      border:1px solid rgba(255,255,255,.07);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
  .related-card:hover,
  .related-card:focus-visible{
      transform:translateY(-2px);
      border-color:rgba(178,108,255,.28);
      box-shadow:0 14px 30px rgba(0,0,0,.28), 0 0 0 4px rgba(178,108,255,.08);
      outline:none;
    }
  .related-thumb{
      height:126px;
      border-radius:16px;
      background:
        radial-gradient(circle at 20% 20%, rgba(178,108,255,.22), transparent 26%),
        radial-gradient(circle at 86% 18%, rgba(108,240,216,.18), transparent 20%),
        linear-gradient(135deg, rgba(56,48,78,.9), rgba(22,19,31,.95));
      border:1px solid rgba(255,255,255,.08);
      position:relative;
      overflow:hidden;
    }
  .related-thumb::after{
      content:"";
      position:absolute;
      inset:auto -12% -42% auto;
      width:120px;
      height:120px;
      border-radius:999px;
      background:radial-gradient(circle, rgba(255,116,201,.18), transparent 65%);
      filter:blur(6px);
    }
  .related-card h3{
      margin:0;
      font-size:1rem;
      line-height:1.45;
    }
  .related-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.8;
    }
  .related-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:auto;
    }
  .related-meta .badge{
      padding:6px 10px;
      font-size:.76rem;
    }

  .site-footer{
      margin-top:14px;
      padding:30px 0 42px;
      position:relative;
      z-index:1;
    }
  .footer-shell{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) auto auto;
      gap:18px;
      align-items:start;
      padding:24px 24px 20px;
      border-radius:calc(var(--radius) + 2px);
      border:1px solid rgba(255,255,255,.07);
      background:linear-gradient(180deg, rgba(22,19,30,.88), rgba(14,12,18,.92));
      box-shadow:var(--shadow-soft);
    }
  .footer-brand strong{
      display:block;
      font-size:1.08rem;
      line-height:1.3;
      margin-bottom:10px;
    }
  .footer-brand p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.9;
      max-width:60ch;
    }
  .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      justify-content:center;
    }
  .footer-links a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:0 13px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      color:var(--muted);
      font-size:.9rem;
    }
  .footer-links a:hover,
  .footer-links a:focus-visible{
      color:var(--text);
      border-color:rgba(178,108,255,.28);
      background:rgba(178,108,255,.10);
      box-shadow:0 0 0 4px rgba(178,108,255,.08);
      transform:translateY(-1px);
      outline:none;
    }
  .copyright{
      display:flex;
      flex-direction:column;
      gap:8px;
      justify-content:flex-end;
      color:var(--soft);
      font-size:.86rem;
      line-height:1.7;
      text-align:right;
    }

  .divider{
      height:1px;
      width:100%;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
      margin:22px 0;
    }

  .fade-up{animation:fadeUp .5s ease both}
  @keyframes fadeUp{
      from{opacity:0;transform:translateY(10px)}
      to{opacity:1;transform:translateY(0)}
    }

  @media (max-width: 1024px){
      .banner-grid{grid-template-columns:1fr}
      .content-grid{grid-template-columns:1fr}
      .article-side{position:static}
      .notes-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
      .related-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
      .footer-shell{grid-template-columns:1fr auto}
      .copyright{text-align:left}
    }
  @media (max-width: 768px){
      .header-inner{min-height:70px}
      .menu-btn{display:inline-flex}
      .nav{
          position:absolute;
          top:58px;
          right:0;
          width:min(320px, calc(100vw - 32px));
          display:none;
          flex-direction:column;
          align-items:stretch;
          gap:8px;
          padding:12px;
          border-radius:20px;
          border:1px solid rgba(255,255,255,.08);
          background:rgba(17,14,24,.96);
          box-shadow:var(--shadow);
          backdrop-filter:blur(18px);
        }
      .nav-wrap.open .nav{display:flex}
      .nav-link{
          width:100%;
          justify-content:flex-start;
          border-radius:16px;
        }
      .article-banner,
      .article-body,
      .related-shell{padding:20px}
      .banner-copy h1{max-width:none}
      .banner-copy .summary{font-size:.98rem}
      .notes-grid{grid-template-columns:1fr}
      .related-grid{grid-template-columns:1fr}
      .footer-shell{
          grid-template-columns:1fr;
          text-align:left;
        }
      .footer-links{justify-content:flex-start}
      .copyright{text-align:left}
    }
  @media (max-width: 520px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .site-main{padding-top:14px}
      .article-banner,
      .article-body,
      .related-shell,
      .footer-shell{padding:18px}
      .brand-mark{width:42px;height:42px;border-radius:14px}
      .brand-text strong{font-size:1rem}
      .brand-text span{font-size:.82rem}
      .banner-copy h1{font-size:1.62rem}
      .section{padding:18px 0}
      .action-row .btn{width:100%}
      .meta-row{gap:8px}
      .meta-item{width:100%;justify-content:flex-start}
      .poster-stats{grid-template-columns:1fr}
      .article-topline{align-items:flex-start}
      .related-thumb{height:112px}
    }