/* roulang page: index */
:root{
      --bg:#070b14;
      --bg-2:#0b1020;
      --panel:#0f1730;
      --panel-2:#111b38;
      --card:#121b35;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(255,255,255,.12);
      --text:#eef2ff;
      --muted:#a9b4d0;
      --muted-2:#7f8bb0;
      --brand:#ff5ba8;
      --brand-2:#8b5cf6;
      --accent:#37d0ff;
      --good:#2fe09b;
      --warn:#ffcc66;
      --shadow:0 16px 50px rgba(0,0,0,.35);
      --radius:22px;
      --radius-sm:14px;
      --radius-xs:10px;
      --container:1180px;
      --space:24px;
      --space-lg:40px;
      --space-xl:64px;
      --transition:.25s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(139,92,246,.22), transparent 28%),
        radial-gradient(circle at top right, rgba(255,91,168,.16), transparent 24%),
        linear-gradient(180deg, #070b14 0%, #0a1020 45%, #090d18 100%);
      line-height:1.75;
      letter-spacing:.01em;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition), transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition)}
    img,video{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(255,91,168,.35);color:#fff}
    .container{
      width:min(100% - 32px, var(--container));
      margin:0 auto;
    }
    .section{
      padding:var(--space-xl) 0;
      position:relative;
    }
    .section + .section{padding-top:0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:24px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:999px;
      color:#fff;
      background:rgba(255,255,255,.04);
      font-size:.82rem;
      letter-spacing:.08em;
      text-transform:uppercase;
    }
    .eyebrow i{color:var(--brand)}
    h1,h2,h3,h4,p{margin:0}
    h1{
      font-size:clamp(2.2rem, 4vw, 4.7rem);
      line-height:1.05;
      letter-spacing:-.03em;
    }
    h2{
      font-size:clamp(1.45rem, 2vw, 2.2rem);
      line-height:1.2;
      letter-spacing:-.02em;
    }
    h3{
      font-size:1.05rem;
      line-height:1.35;
    }
    .section-desc{
      max-width:720px;
      color:var(--muted);
      font-size:1rem;
    }

    .topbar{
      background:rgba(9,13,24,.78);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(16px);
    }
    .topbar .container{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:10px 0;
      color:var(--muted);
      font-size:.92rem;
    }
    .topbar a{
      color:#fff;
      border-bottom:1px solid rgba(255,255,255,.28);
      padding-bottom:1px;
    }
    .topbar a:hover{color:var(--brand)}
    .topbar .notice{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .topbar .notice span{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:4px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:#dbe3ff;
    }

    header.site-header{
      position:sticky;
      top:0;
      z-index:40;
      background:rgba(6,9,16,.72);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(18px);
      box-shadow:0 8px 24px rgba(0,0,0,.12);
    }
    .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:18px 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:
        linear-gradient(145deg, rgba(255,91,168,1), rgba(139,92,246,1));
      box-shadow:0 10px 24px rgba(255,91,168,.25);
      flex:0 0 auto;
    }
    .brand-mark i{font-size:1.1rem;color:#fff}
    .brand-text{
      display:flex;
      flex-direction:column;
      gap:3px;
      min-width:0;
    }
    .brand-text strong{
      font-size:1.06rem;
      letter-spacing:.01em;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text small{
      color:var(--muted);
      line-height:1.2;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:18px;
    }
    nav.primary-nav ul{
      list-style:none;
      display:flex;
      align-items:center;
      gap:10px;
      margin:0;
      padding:0;
      flex-wrap:wrap;
    }
    nav.primary-nav a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:11px 16px;
      border-radius:999px;
      color:#e9edff;
      border:1px solid transparent;
      background:transparent;
      font-weight:500;
    }
    nav.primary-nav a:hover{
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    nav.primary-nav a.active{
      background:linear-gradient(135deg, rgba(255,91,168,.18), rgba(139,92,246,.18));
      border-color:rgba(255,91,168,.34);
      box-shadow:0 10px 22px rgba(255,91,168,.12);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:11px 16px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      color:#fff;
      font-weight:700;
      box-shadow:0 12px 28px rgba(139,92,246,.18);
    }
    .nav-cta:hover{transform:translateY(-1px);box-shadow:0 16px 32px rgba(255,91,168,.24)}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
      color:#fff;
      align-items:center;
      justify-content:center;
    }
    .menu-toggle:hover{background:rgba(255,255,255,.08)}
    .mobile-nav{
      display:none;
      padding:0 0 18px;
    }
    .mobile-nav.open{display:block}
    .mobile-nav a{
      display:flex;
      justify-content:space-between;
      align-items:center;
      width:100%;
      padding:14px 16px;
      border-radius:16px;
      color:#eef2ff;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      margin-top:10px;
    }
    .mobile-nav a.active{border-color:rgba(255,91,168,.4);background:rgba(255,91,168,.1)}
    .mobile-nav a:hover{transform:translateY(-1px)}

    .hero{
      position:relative;
      padding:28px 0 0;
    }
    .hero-shell{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      border-radius:34px;
      min-height:760px;
      background:
        radial-gradient(circle at 20% 20%, rgba(255,91,168,.24), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(55,208,255,.18), transparent 26%),
        linear-gradient(180deg, rgba(16,24,49,.85), rgba(7,11,20,.96));
      box-shadow:var(--shadow);
    }
    .hero-video{
      position:absolute;
      inset:0;
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.42;
      filter:saturate(1.05) contrast(1.05);
      transform:scale(1.02);
    }
    .hero-overlay{
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(7,11,20,.88) 0%, rgba(7,11,20,.72) 46%, rgba(7,11,20,.38) 100%),
        linear-gradient(180deg, rgba(7,11,20,.15), rgba(7,11,20,.52));
    }
    .hero-inner{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);
      gap:28px;
      padding:64px;
      min-height:760px;
      align-items:center;
    }
    .hero-copy{
      max-width:760px;
    }
    .hero-copy p.lead{
      margin-top:22px;
      max-width:690px;
      color:#e3e9ff;
      font-size:1.05rem;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      margin-top:28px;
    }
    .btnx{
      display:inline-flex;
      align-items:center;
      gap:10px;
      border-radius:999px;
      padding:14px 20px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.01em;
      cursor:pointer;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
    }
    .btnx:hover{transform:translateY(-2px)}
    .btnx.primary{
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      color:#fff;
      box-shadow:0 14px 28px rgba(255,91,168,.2);
    }
    .btnx.secondary{
      background:rgba(255,255,255,.04);
      color:#fff;
      border-color:rgba(255,255,255,.14);
    }
    .btnx.secondary:hover{background:rgba(255,255,255,.08)}
    .btnx.ghost{
      background:transparent;
      color:#dce3ff;
      border-color:rgba(255,255,255,.12);
    }
    .btnx i{font-size:.95em}
    .hero-points{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:28px;
    }
    .point{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      color:#eaf0ff;
      font-size:.92rem;
      backdrop-filter:blur(8px);
    }
    .point i{color:var(--accent)}
    .hero-side{
      align-self:end;
      justify-self:end;
      width:min(100%, 410px);
      background:rgba(11,16,32,.7);
      border:1px solid rgba(255,255,255,.1);
      border-radius:28px;
      backdrop-filter:blur(18px);
      padding:22px;
      box-shadow:0 16px 42px rgba(0,0,0,.24);
    }
    .hero-side .mini-video{
      position:relative;
      border-radius:22px;
      overflow:hidden;
      min-height:238px;
      background:
        linear-gradient(135deg, rgba(255,91,168,.16), rgba(139,92,246,.2)),
        url('https://images.unsplash.com/photo-1516321497487-e288fb19713f?auto=format&fit=crop&w=900&q=80') center/cover;
      border:1px solid rgba(255,255,255,.08);
    }
    .hero-side .mini-video::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(7,11,20,.1), rgba(7,11,20,.56));
    }
    .play-badge{
      position:absolute;
      z-index:2;
      left:18px;
      bottom:18px;
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:11px 14px;
      border-radius:999px;
      background:rgba(7,11,20,.7);
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(10px);
    }
    .play-badge .icon{
      width:34px;
      height:34px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      color:#fff;
      box-shadow:0 10px 18px rgba(255,91,168,.22);
    }
    .side-info{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      margin-top:16px;
    }
    .side-chip{
      border-radius:18px;
      padding:14px 12px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      text-align:center;
    }
    .side-chip strong{
      display:block;
      font-size:1rem;
      margin-bottom:4px;
    }
    .side-chip span{
      color:var(--muted);
      font-size:.82rem;
      line-height:1.45;
    }
    .age-note{
      margin-top:16px;
      color:var(--muted);
      font-size:.92rem;
      display:flex;
      align-items:flex-start;
      gap:10px;
    }
    .age-note i{color:var(--warn);margin-top:3px}

    .panel{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      border-radius:28px;
      box-shadow:var(--shadow);
    }
    .calendar-grid{
      display:grid;
      grid-template-columns:repeat(7,minmax(0,1fr));
      gap:14px;
    }
    .calendar-card{
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.08);
      border-radius:22px;
      padding:18px 16px;
      min-height:168px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:12px;
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .calendar-card:hover{
      transform:translateY(-4px);
      border-color:rgba(255,91,168,.28);
      box-shadow:0 18px 34px rgba(0,0,0,.24);
    }
    .calendar-card .day{
      font-weight:800;
      color:#fff;
      font-size:.95rem;
    }
    .calendar-card .title{
      font-size:1rem;
      font-weight:700;
      line-height:1.35;
    }
    .calendar-card .desc{
      color:var(--muted);
      font-size:.9rem;
      line-height:1.65;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      width:max-content;
      gap:7px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      color:#dbe4ff;
      font-size:.78rem;
      border:1px solid rgba(255,255,255,.08);
    }
    .badge.hot{background:rgba(255,91,168,.12);border-color:rgba(255,91,168,.22)}
    .badge.accent{background:rgba(55,208,255,.11);border-color:rgba(55,208,255,.22)}
    .badge.good{background:rgba(47,224,155,.11);border-color:rgba(47,224,155,.22)}
    .badge.warn{background:rgba(255,204,102,.12);border-color:rgba(255,204,102,.2)}

    .topic-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .topic-card{
      position:relative;
      overflow:hidden;
      border-radius:26px;
      padding:22px;
      min-height:220px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03)),
        linear-gradient(140deg, rgba(255,91,168,.12), rgba(139,92,246,.1));
      border:1px solid rgba(255,255,255,.08);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .topic-card:hover{
      transform:translateY(-5px);
      border-color:rgba(255,91,168,.28);
      box-shadow:0 18px 36px rgba(0,0,0,.24);
    }
    .topic-card .icon{
      width:52px;
      height:52px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(255,91,168,.9), rgba(139,92,246,.9));
      box-shadow:0 12px 24px rgba(139,92,246,.18);
      margin-bottom:16px;
    }
    .topic-card p{
      color:var(--muted);
      margin-top:10px;
      font-size:.95rem;
      line-height:1.75;
    }
    .topic-card .more{
      margin-top:18px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#fff;
      font-weight:700;
    }
    .topic-card .tag{
      display:inline-flex;
      margin-top:16px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      color:#d6ddff;
      font-size:.78rem;
    }

    .dashboard-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
      margin-bottom:18px;
    }
    .metric{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      border-radius:24px;
      padding:22px 20px;
    }
    .metric .num{
      font-size:2.1rem;
      font-weight:800;
      line-height:1;
      margin:10px 0 8px;
      letter-spacing:-.04em;
    }
    .metric .small{
      color:var(--muted);
      font-size:.92rem;
      line-height:1.6;
    }
    .metric .mini{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .spark{
      width:54px;
      height:54px;
      border-radius:50%;
      background:
        radial-gradient(circle at center, transparent 52%, rgba(255,255,255,.06) 53% 100%),
        conic-gradient(var(--brand) 0 72%, rgba(255,255,255,.08) 72% 100%);
      display:grid;
      place-items:center;
      font-size:.78rem;
      color:#fff;
      font-weight:700;
    }
    .chart-panel{
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);
      gap:18px;
      align-items:stretch;
    }
    .chart-box, .support-box{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      border-radius:28px;
      padding:22px;
    }
    .bars{
      display:grid;
      gap:16px;
      margin-top:18px;
    }
    .bar-row{
      display:grid;
      grid-template-columns:90px 1fr 58px;
      gap:12px;
      align-items:center;
      color:#e9edff;
      font-size:.92rem;
    }
    .bar{
      height:12px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      overflow:hidden;
      position:relative;
    }
    .bar > span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, var(--brand), var(--brand-2), var(--accent));
      box-shadow:0 8px 18px rgba(139,92,246,.22);
    }
    .support-list{
      display:grid;
      gap:14px;
      margin-top:18px;
    }
    .support-item{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:15px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
    }
    .support-item i{
      width:40px;
      height:40px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:rgba(55,208,255,.12);
      color:var(--accent);
      flex:0 0 auto;
    }
    .support-item p{
      margin-top:4px;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.7;
    }

    .news-grid{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(290px,.8fr);
      gap:18px;
      align-items:start;
    }
    .news-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .news-list li a{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:16px 16px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .news-list li a:hover{
      transform:translateY(-2px);
      border-color:rgba(55,208,255,.24);
      background:rgba(55,208,255,.05);
    }
    .news-list .dot{
      width:44px;
      height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(55,208,255,.18), rgba(139,92,246,.2));
      color:#fff;
      flex:0 0 auto;
    }
    .news-list h3{
      margin-bottom:5px;
      font-size:1rem;
    }
    .news-list p{
      color:var(--muted);
      font-size:.92rem;
      line-height:1.7;
    }
    .aside-list{
      display:grid;
      gap:14px;
    }
    .aside-card{
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .aside-card .meta{
      display:flex;
      justify-content:space-between;
      gap:10px;
      color:var(--muted);
      font-size:.85rem;
      margin-bottom:10px;
    }
    .aside-card p{
      color:var(--muted);
      font-size:.93rem;
      line-height:1.7;
      margin-top:8px;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:12px;
    }

    .guide-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(0,1fr);
      gap:18px;
      align-items:start;
    }
    .steps{
      display:grid;
      gap:14px;
    }
    .step{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .step .index{
      flex:0 0 auto;
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      font-weight:800;
      color:#fff;
      box-shadow:0 12px 22px rgba(255,91,168,.16);
    }
    .step p{
      color:var(--muted);
      font-size:.94rem;
      line-height:1.75;
      margin-top:6px;
    }
    .trust-row{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:12px;
      margin-top:18px;
    }
    .trust-item{
      text-align:center;
      padding:18px 14px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .trust-item i{
      font-size:1.15rem;
      color:var(--good);
      margin-bottom:10px;
    }
    .trust-item strong{
      display:block;
      margin-bottom:4px;
    }
    .trust-item span{
      color:var(--muted);
      font-size:.88rem;
      line-height:1.55;
    }

    .faq{
      margin-top:18px;
      display:grid;
      gap:12px;
    }
    .faq-item{
      border-radius:20px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
    }
    .faq-q{
      width:100%;
      padding:16px 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      background:transparent;
      color:#fff;
      border:none;
      cursor:pointer;
      text-align:left;
      font-weight:700;
    }
    .faq-q i{
      color:var(--brand);
      transition:transform var(--transition);
    }
    .faq-item.open .faq-q i{transform:rotate(45deg)}
    .faq-a{
      display:none;
      padding:0 18px 18px;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.8;
    }
    .faq-item.open .faq-a{display:block}

    .bottom-cta{
      margin-top:18px;
      padding:22px;
      border-radius:26px;
      background:
        linear-gradient(135deg, rgba(255,91,168,.16), rgba(139,92,246,.14)),
        rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.1);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .bottom-cta p{
      color:#dfe6ff;
      margin-top:8px;
    }

    footer{
      padding:26px 0 34px;
      border-top:1px solid var(--line);
      background:rgba(6,9,16,.74);
    }
    .footer-inner{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:24px;
      flex-wrap:wrap;
    }
    .footer-brand{
      max-width:460px;
    }
    .footer-brand p{
      color:var(--muted);
      margin-top:10px;
      line-height:1.8;
      font-size:.95rem;
    }
    .footer-links{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
    }
    .footer-links a{
      padding:10px 14px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      color:#edf2ff;
    }
    .footer-links a:hover{border-color:rgba(255,91,168,.24);background:rgba(255,91,168,.08)}
    .copyright{
      margin-top:18px;
      color:var(--muted-2);
      font-size:.9rem;
    }

    .section-title-line{
      display:flex;
      align-items:center;
      gap:14px;
      margin-bottom:18px;
    }
    .section-title-line .line{
      height:1px;
      flex:1;
      background:linear-gradient(90deg, rgba(255,255,255,.18), transparent);
    }

    .mobile-only{display:none}

    a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(55,208,255,.35);
      outline-offset:3px;
    }

    @media (max-width: 1100px){
      .hero-inner{
        grid-template-columns:1fr;
        min-height:auto;
        padding:44px 28px 28px;
      }
      .hero-shell{min-height:auto}
      .hero-side{justify-self:start;width:min(100%, 520px)}
      .calendar-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
      .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .dashboard-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .chart-panel,.news-grid,.guide-grid{grid-template-columns:1fr}
      .trust-row{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width: 768px){
      .topbar .container{flex-direction:column;align-items:flex-start}
      .header-inner{padding:14px 0}
      nav.primary-nav, .nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-only{display:block}
      .hero{padding-top:18px}
      .hero-shell{border-radius:26px}
      .hero-inner{padding:28px 18px 18px}
      h1{font-size:clamp(2rem, 10vw, 3rem)}
      .hero-copy p.lead{font-size:1rem}
      .hero-side{width:100%;padding:18px;border-radius:22px}
      .side-info{grid-template-columns:1fr}
      .calendar-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .topic-grid,.dashboard-grid,.trust-row{grid-template-columns:1fr}
      .section{padding:44px 0}
      .section-head{flex-direction:column;align-items:flex-start}
      .bottom-cta{flex-direction:column;align-items:flex-start}
      .footer-inner{flex-direction:column}
    }

    @media (max-width: 520px){
      .container{width:min(100% - 22px, var(--container))}
      .hero-shell{border-radius:20px}
      .hero-inner{padding:20px 14px 14px}
      .hero-actions{flex-direction:column}
      .btnx{width:100%;justify-content:center}
      .calendar-grid{grid-template-columns:1fr}
      .bar-row{grid-template-columns:72px 1fr 46px}
      .news-list li a,.step,.metric,.aside-card,.calendar-card,.topic-card,.support-item,.faq-q{border-radius:18px}
    }

/* roulang page: category1 */
:root{
      --bg:#070812;
      --bg-soft:#0d1020;
      --panel:#12162a;
      --panel-2:#171b33;
      --text:#f7f2ff;
      --muted:#b8afc9;
      --subtle:#827995;
      --line:rgba(255,255,255,.12);
      --primary:#ff4fd8;
      --primary-2:#8b5cf6;
      --accent:#20e3ff;
      --gold:#ffd166;
      --success:#53f5a9;
      --danger:#ff687a;
      --radius-sm:12px;
      --radius:22px;
      --radius-lg:32px;
      --shadow:0 24px 80px rgba(0,0,0,.42);
      --shadow-soft:0 18px 40px rgba(9,12,28,.34);
      --container:1180px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 18% 8%,rgba(255,79,216,.24),transparent 34%),
        radial-gradient(circle at 84% 12%,rgba(32,227,255,.18),transparent 30%),
        linear-gradient(180deg,#070812 0%,#0b0d19 48%,#080913 100%);
      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:42px 42px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 78%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover,a:focus{color:#fff}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(32,227,255,.45);outline-offset:3px;border-radius:12px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(7,8,18,.78);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .top-strip{border-bottom:1px solid rgba(255,255,255,.08);font-size:13px;color:var(--muted)}
    .top-strip .container{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:8px 0}
    .strip-left,.strip-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
    .strip-pill{display:inline-flex;align-items:center;gap:7px;padding:5px 10px;border:1px solid rgba(255,255,255,.1);border-radius:999px;background:rgba(255,255,255,.04)}
    .main-nav-row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
    .brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{width:44px;height:44px;border-radius:16px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2) 55%,var(--accent));box-shadow:0 12px 30px rgba(255,79,216,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
    .brand-text strong{font-size:18px;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .brand-text small{font-size:12px;color:var(--muted);margin-top:2px}
    .nav-actions{display:flex;align-items:center;gap:16px}
    .primary-nav ul{display:flex;align-items:center;gap:8px;list-style:none;margin:0;padding:0}
    .primary-nav a{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;color:var(--muted);border:1px solid transparent;font-weight:700;font-size:14px}
    .primary-nav a:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.12);transform:translateY(-1px)}
    .primary-nav a.active{color:#fff;background:linear-gradient(135deg,rgba(255,79,216,.22),rgba(32,227,255,.12));border-color:rgba(255,255,255,.18);box-shadow:inset 0 0 0 1px rgba(255,255,255,.04)}
    .quick-cta{display:inline-flex;align-items:center;gap:8px;padding:10px 15px;border-radius:999px;background:#fff;color:#111426;font-weight:800;box-shadow:0 12px 26px rgba(255,255,255,.12)}
    .quick-cta:hover{color:#111426;transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,79,216,.22)}
    .menu-toggle{display:none;border:1px solid var(--line);background:rgba(255,255,255,.06);color:#fff;border-radius:14px;width:44px;height:44px}
    .hero{padding:70px 0 42px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid rgba(255,255,255,.13);border-radius:999px;background:rgba(255,255,255,.055);color:var(--muted);font-size:13px;font-weight:800}
    .hero h1{font-size:clamp(34px,5vw,64px);line-height:1.08;letter-spacing:-1.5px;margin:22px 0 18px}
    .gradient-text{background:linear-gradient(135deg,#fff 0%,#ffd7f6 40%,#70efff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero-lead{font-size:18px;color:#d8d1e7;max-width:690px;margin:0 0 26px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 20px;font-weight:900;border:1px solid transparent;cursor:pointer;transition:var(--ease);min-height:48px}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 18px 36px rgba(139,92,246,.28)}
    .btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 24px 44px rgba(255,79,216,.28)}
    .btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);color:#fff}
    .btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
    .mini-notes{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:14px}
    .mini-notes span{display:inline-flex;align-items:center;gap:7px}
    .story-panel{position:relative;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);padding:18px;background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.04));box-shadow:var(--shadow);overflow:hidden}
    .story-panel:before{content:"";position:absolute;inset:-80px -80px auto auto;width:220px;height:220px;border-radius:50%;background:rgba(255,79,216,.26);filter:blur(30px)}
    .visual-card{position:relative;min-height:430px;border-radius:26px;overflow:hidden;background:linear-gradient(135deg,rgba(255,79,216,.18),rgba(32,227,255,.1)),linear-gradient(180deg,#25233f,#111426)}
    .visual-card .halo{position:absolute;inset:34px;border:1px solid rgba(255,255,255,.14);border-radius:28px;background:radial-gradient(circle at 50% 25%,rgba(255,255,255,.16),transparent 36%)}
    .visual-copy{position:absolute;left:24px;right:24px;bottom:24px;padding:20px;border-radius:22px;background:rgba(6,8,20,.72);backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.14)}
    .status-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .status-badge,.tag{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:900;border:1px solid rgba(255,255,255,.13);color:#fff;background:rgba(255,255,255,.08)}
    .status-badge i{color:var(--success)}
    .visual-copy h2{font-size:24px;margin:6px 0 8px;line-height:1.25}
    .visual-copy p{margin:0;color:var(--muted)}
    main{padding-bottom:72px}
    .section{padding:54px 0}
    .section-head{max-width:760px;margin-bottom:28px}
    .section-head h2{font-size:clamp(26px,3vw,42px);line-height:1.2;margin:10px 0 12px;letter-spacing:-.6px}
    .section-head p{color:var(--muted);font-size:16px;margin:0}
    .value-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:stretch}
    .value-intro,.card,.require-box,.review-card,.faq-item,.download-panel{background:linear-gradient(180deg,rgba(255,255,255,.085),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .value-intro{padding:28px;display:flex;flex-direction:column;justify-content:space-between;min-height:360px}
    .value-intro h3{font-size:28px;line-height:1.25;margin:0 0 14px}
    .value-intro p{color:var(--muted);margin:0 0 22px}
    .stat-stack{display:grid;gap:10px}
    .stat-line{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:16px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.08)}
    .stat-line strong{font-size:20px;color:#fff}
    .stat-line span{color:var(--muted);font-size:13px}
    .feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{padding:22px;transition:var(--ease);position:relative;overflow:hidden}
    .card:hover{transform:translateY(-4px);border-color:rgba(255,79,216,.32);box-shadow:0 24px 54px rgba(0,0,0,.34)}
    .icon-box{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,79,216,.26),rgba(32,227,255,.18));color:#fff;margin-bottom:16px}
    .card h3{font-size:20px;margin:0 0 9px;line-height:1.35}
    .card p{margin:0;color:var(--muted);font-size:15px}
    .showcase{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:center}
    .screen-frame{border-radius:30px;padding:16px;background:#0a0c18;border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow);overflow:hidden}
    .screen-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;color:var(--muted);font-size:13px}
    .dots{display:flex;gap:7px}.dots span{width:10px;height:10px;border-radius:50%;background:var(--primary)}.dots span:nth-child(2){background:var(--gold)}.dots span:nth-child(3){background:var(--success)}
    .mock-screen{min-height:360px;border-radius:22px;background:linear-gradient(135deg,rgba(139,92,246,.34),rgba(255,79,216,.1)),#15182d;padding:22px;display:grid;gap:14px;align-content:start}
    .mock-hero{height:118px;border-radius:22px;background:linear-gradient(90deg,rgba(255,255,255,.18),rgba(255,255,255,.06));border:1px solid rgba(255,255,255,.12)}
    .mock-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.mock-tile{height:96px;border-radius:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1)}
    .showcase-copy{padding:10px 0}
    .check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:12px}
    .check-list li{display:flex;gap:10px;align-items:flex-start;color:#dcd5eb}.check-list i{margin-top:6px;color:var(--success)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}
    .step{padding:20px;border-radius:var(--radius);background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);position:relative}
    .step-num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--primary-2));font-weight:900;margin-bottom:14px;color:#08101c}
    .step h3{font-size:18px;margin:0 0 8px}.step p{margin:0;color:var(--muted);font-size:14px}
    .requirements{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .require-box{padding:22px}.require-box h3{font-size:19px;margin:0 0 12px}.require-box p{color:var(--muted);margin:0}.require-box .tag{margin-top:16px;color:#fff}
    .review-wall{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:16px;align-items:stretch}
    .review-card{padding:22px}.review-card.featured{background:linear-gradient(135deg,rgba(255,79,216,.18),rgba(32,227,255,.1));transform:translateY(-10px)}
    .stars{color:var(--gold);letter-spacing:2px;margin-bottom:12px}.review-card p{color:#ded7ea;margin:0 0 18px}.reviewer{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px}.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.1);color:#fff}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px}.faq-list{display:grid;gap:12px}.faq-item{padding:20px}.faq-item h3{font-size:18px;margin:0 0 8px}.faq-item p{margin:0;color:var(--muted)}
    .download-panel{padding:34px;display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;background:linear-gradient(135deg,rgba(255,79,216,.18),rgba(139,92,246,.14),rgba(32,227,255,.1));overflow:hidden;position:relative}
    .download-panel:after{content:"";position:absolute;right:-60px;top:-60px;width:190px;height:190px;border-radius:50%;background:rgba(32,227,255,.18);filter:blur(10px)}
    .download-panel h2{font-size:clamp(26px,3vw,42px);line-height:1.2;margin:0 0 12px}.download-panel p{color:#e3ddef;margin:0}
    .download-buttons{display:grid;gap:12px;position:relative;z-index:1}.download-buttons .btn{width:100%}
    footer{padding:44px 0;border-top:1px solid var(--line);background:rgba(5,6,14,.72)}
    .footer-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}.footer-brand p{color:var(--muted);margin:18px 0 12px;max-width:680px}.copyright{color:var(--subtle);font-size:13px}.footer-links{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}.footer-links a{padding:9px 12px;border-radius:999px;color:var(--muted);background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);font-size:14px}.footer-links a:hover{color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px)}
    @media (max-width:1024px){.hero-grid,.value-layout,.showcase,.faq-grid,.download-panel{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.review-wall{grid-template-columns:1fr}.review-card.featured{transform:none}.requirements{grid-template-columns:1fr 1fr}.quick-cta{display:none}}
    @media (max-width:768px){.container{width:min(100% - 28px,var(--container))}.top-strip .container{align-items:flex-start}.strip-right{display:none}.main-nav-row{align-items:flex-start}.menu-toggle{display:inline-grid}.nav-actions{flex-direction:column;align-items:flex-end;gap:10px}.primary-nav{display:none;width:100%;position:absolute;left:0;right:0;top:100%;padding:12px 14px;background:rgba(7,8,18,.96);border-bottom:1px solid var(--line)}.primary-nav.is-open{display:block}.primary-nav ul{width:min(var(--container),calc(100% - 28px));margin:0 auto;display:grid;grid-template-columns:1fr;gap:8px}.primary-nav a{width:100%;justify-content:center}.hero{padding-top:44px}.feature-grid,.requirements{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.footer-links{justify-content:flex-start}.brand-text strong{font-size:16px}}
    @media (max-width:520px){.hero-actions,.mini-notes{flex-direction:column;align-items:stretch}.btn{width:100%}.story-panel{padding:10px;border-radius:24px}.visual-card{min-height:390px}.visual-copy{left:14px;right:14px;bottom:14px;padding:16px}.mock-row{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.section{padding:40px 0}.download-panel{padding:24px}.top-strip{font-size:12px}}