/* roulang page: index */
:root {
      --bg: #080b13;
      --panel: #101622;
      --panel-soft: #151d2c;
      --line: rgba(151, 179, 221, .18);
      --text: #f5f7fb;
      --muted: #9ca9bd;
      --cyan: #65e6dc;
      --violet: #9d8cff;
      --pink: #ff75b9;
      --shadow: 0 22px 70px rgba(0,0,0,.32);
      --radius: 24px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--text);
      background:
        radial-gradient(circle at 15% 0%, rgba(101,230,220,.12), transparent 32rem),
        radial-gradient(circle at 85% 15%, rgba(157,140,255,.14), transparent 30rem),
        var(--bg);
      font-family: "Inter", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    button, input, textarea { font: inherit; }
    .container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
    .site-header {
      position: sticky; top: 0; z-index: 30;
      background: rgba(8,11,19,.82);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
    }
    .nav-shell { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
    .logo { display: inline-flex; align-items: center; gap: 11px; font-size: 17px; font-weight: 800; letter-spacing: -.02em; }
    .logo-mark {
      width: 34px; height: 34px; border-radius: 11px;
      display: grid; place-items: center; color: #071016;
      background: linear-gradient(135deg, var(--cyan), var(--violet));
      box-shadow: 0 0 26px rgba(101,230,220,.35);
      font-weight: 900;
    }
    .nav-links { display: flex; align-items: center; gap: 7px; }
    .nav-links a { color: var(--muted); padding: 9px 14px; border-radius: 12px; transition: .25s ease; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--text); background: rgba(255,255,255,.07); outline: none; }
    .nav-links a.active { color: var(--cyan); background: rgba(101,230,220,.1); box-shadow: inset 0 -2px var(--cyan); }
    .nav-cta, .btn-primary {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      border: 1px solid rgba(101,230,220,.4); color: #071016;
      background: var(--cyan); border-radius: 13px; padding: 11px 18px; font-weight: 800;
      transition: .25s ease; box-shadow: 0 8px 24px rgba(101,230,220,.16);
    }
    .nav-cta:hover, .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 13px 32px rgba(101,230,220,.3); }
    .menu-button { display: none; color: var(--text); background: transparent; border: 1px solid var(--line); border-radius: 10px; padding: 8px 11px; }
    .hero { padding: 88px 0 76px; position: relative; }
    .hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
    .eyebrow, .tag { color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
    h1 { margin: 16px 0 22px; max-width: 760px; font-size: clamp(42px, 6vw, 76px); line-height: 1.08; letter-spacing: -.06em; }
    .hero-copy { max-width: 650px; color: var(--muted); font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
    .btn-secondary {
      display: inline-flex; align-items: center; justify-content: center;
      padding: 11px 18px; border: 1px solid var(--line); border-radius: 13px; color: var(--text);
      background: rgba(255,255,255,.04); transition: .25s ease;
    }
    .btn-secondary:hover { border-color: var(--cyan); background: rgba(101,230,220,.08); }
    .hero-notice {
      margin-top: 28px; padding: 14px 16px; border-left: 3px solid var(--pink);
      color: #d9deea; background: rgba(255,117,185,.07); border-radius: 0 14px 14px 0;
      font-size: 14px;
    }
    .hero-panel { position: relative; min-height: 390px; padding: 26px; border: 1px solid var(--line); border-radius: 30px; background: linear-gradient(145deg, rgba(21,29,44,.96), rgba(10,14,23,.9)); box-shadow: var(--shadow); overflow: hidden; }
    .hero-panel:before { content: ""; position: absolute; width: 230px; height: 230px; border-radius: 50%; background: rgba(157,140,255,.2); filter: blur(45px); right: -60px; top: -60px; }
    .signal { position: relative; display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
    .signal-dot { width: 10px; height: 10px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 16px var(--cyan); }
    .panel-title { position: relative; margin: 34px 0 21px; font-size: 26px; line-height: 1.3; }
    .risk-list { position: relative; display: grid; gap: 12px; }
    .risk-item { display: flex; gap: 13px; padding: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.035); border-radius: 16px; }
    .risk-icon { flex: 0 0 30px; height: 30px; display: grid; place-items: center; border-radius: 10px; color: var(--cyan); background: rgba(101,230,220,.12); }
    .section { padding: 78px 0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 25px; margin-bottom: 30px; }
    .section h2 { margin: 8px 0 0; font-size: clamp(28px, 4vw, 44px); line-height: 1.2; letter-spacing: -.04em; }
    .section-intro { max-width: 620px; color: var(--muted); }
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .card { padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(16,22,34,.78); transition: .25s ease; }
    .card:hover { transform: translateY(-5px); border-color: rgba(101,230,220,.48); box-shadow: 0 18px 42px rgba(0,0,0,.2); }
    .card h3 { margin: 15px 0 8px; font-size: 20px; }
    .card p { margin: 0; color: var(--muted); font-size: 14px; }
    .icon-box { width: 44px; height: 44px; display: grid; place-items: center; color: var(--cyan); border: 1px solid rgba(101,230,220,.25); border-radius: 14px; background: rgba(101,230,220,.1); font-weight: 900; }
    .split { display: grid; grid-template-columns: .86fr 1.14fr; gap: 22px; align-items: stretch; }
    .dark-feature { padding: 34px; border-radius: 28px; background: linear-gradient(150deg, #18273b, #101622); border: 1px solid rgba(101,230,220,.22); }
    .dark-feature h3 { font-size: 29px; line-height: 1.25; margin: 12px 0; }
    .steps { display: grid; gap: 13px; }
    .step { display: grid; grid-template-columns: 42px 1fr; gap: 15px; padding: 18px; border-bottom: 1px solid var(--line); }
    .step:last-child { border-bottom: 0; }
    .step-num { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; color: #091017; background: var(--violet); font-weight: 900; }
    .step h4 { margin: 0 0 3px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .info-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
    .metric { padding: 25px 20px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--cyan); font-size: 27px; }
    .metric span { color: var(--muted); font-size: 13px; }
    .article-list { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
    .article { display: flex; justify-content: space-between; gap: 20px; padding: 20px 24px; border-bottom: 1px solid var(--line); transition: .2s; }
    .article:last-child { border-bottom: 0; }
    .article:hover { background: rgba(101,230,220,.06); }
    .article b { font-size: 16px; }
    .article small { color: var(--muted); white-space: nowrap; }
    .faq { display: grid; gap: 13px; max-width: 850px; }
    details { padding: 20px 22px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.035); }
    summary { cursor: pointer; font-weight: 750; }
    details p { color: var(--muted); margin: 13px 0 0; font-size: 14px; }
    .cta { padding: 45px; border-radius: 30px; background: linear-gradient(110deg, rgba(101,230,220,.17), rgba(157,140,255,.16)); border: 1px solid rgba(101,230,220,.28); display: flex; justify-content: space-between; align-items: center; gap: 24px; }
    .cta h2 { margin: 0 0 9px; font-size: 32px; }
    .cta p { margin: 0; color: #c7d0df; }
    footer { padding: 38px 0 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
    .footer-grid { display: flex; justify-content: space-between; gap: 25px; }
    .footer-links { display: flex; gap: 20px; }
    .footer-links a:hover { color: var(--cyan); }
    @media (max-width: 900px) {
      .hero-grid, .split { grid-template-columns: 1fr; }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .info-strip { grid-template-columns: repeat(2, 1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    }
    @media (max-width: 680px) {
      .container { width: min(100% - 28px, 560px); }
      .nav-links { display: none; position: absolute; top: 70px; left: 14px; right: 14px; padding: 10px; flex-direction: column; align-items: stretch; background: #101622; border: 1px solid var(--line); border-radius: 16px; }
      .nav-links.open { display: flex; }
      .nav-links a { text-align: center; }
      .nav-cta { display: none; }
      .menu-button { display: block; }
      .hero { padding: 60px 0 44px; }
      h1 { font-size: 43px; }
      .hero-copy { font-size: 16px; }
      .hero-panel { min-height: auto; }
      .section { padding: 56px 0; }
      .section-head { display: block; }
      .grid-3 { grid-template-columns: 1fr; }
      .info-strip { grid-template-columns: 1fr 1fr; }
      .metric { padding: 19px 12px; }
      .metric strong { font-size: 23px; }
      .article { display: block; }
      .article small { display: block; margin-top: 5px; }
      .cta { display: block; padding: 30px 24px; }
      .cta .btn-primary { margin-top: 20px; }
      .footer-grid { display: block; }
      .footer-links { margin-top: 18px; flex-wrap: wrap; }
    }

/* roulang page: category1 */
:root{
 --bg:#080b13;
 --panel:#101622;
 --panel-soft:#151d2c;
 --line:rgba(151,179,221,.18);
 --text:#f5f7fb;
 --muted:#9ca9bd;
 --cyan:#65e6dc;
 --violet:#9d8cff;
 --pink:#ff75b9;
 --green:#89f0b0;
 --shadow:0 22px 70px rgba(0,0,0,.32);
 --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;color:var(--text);background:
 radial-gradient(circle at 15% 0%,rgba(101,230,220,.12),transparent 32rem),
 radial-gradient(circle at 85% 15%,rgba(157,140,255,.14),transparent 30rem),var(--bg);
 font-family:"Inter","Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(8,11,19,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-shell{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:inline-flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:-.02em}
.logo-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;color:#071016;background:linear-gradient(135deg,var(--cyan),var(--violet));box-shadow:0 0 26px rgba(101,230,220,.35);font-weight:900}
.nav-links{display:flex;align-items:center;gap:7px}
.nav-links a{color:var(--muted);padding:9px 14px;border-radius:12px;transition:.25s ease}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--text);background:rgba(255,255,255,.07);outline:none}
.nav-links a.active{color:var(--cyan);background:rgba(101,230,220,.1);box-shadow:inset 0 -2px var(--cyan)}
.nav-cta,.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid rgba(101,230,220,.4);color:#071016;background:var(--cyan);border-radius:13px;padding:11px 18px;font-weight:800;transition:.25s ease;box-shadow:0 8px 24px rgba(101,230,220,.16)}
.nav-cta:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 13px 32px rgba(101,230,220,.3)}
.menu-button{display:none;color:var(--text);background:transparent;border:1px solid var(--line);border-radius:10px;padding:8px 11px}
.hero{padding:82px 0 68px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:58px;align-items:center}
.eyebrow,.tag{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.14em}
h1{font-size:clamp(42px,6vw,72px);line-height:1.08;letter-spacing:-.06em;margin:16px 0 22px}
.hero-copy{max-width:650px;color:var(--muted);font-size:18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border:1px solid var(--line);border-radius:13px;color:var(--text);background:rgba(255,255,255,.04);transition:.25s ease}
.btn-secondary:hover{border-color:var(--cyan);background:rgba(101,230,220,.08)}
.hero-notice{margin-top:28px;padding:14px 16px;border-left:3px solid var(--pink);color:#d9deea;background:rgba(255,117,185,.07);border-radius:0 14px 14px 0;font-size:14px}
.hero-panel{position:relative;padding:26px;border:1px solid var(--line);border-radius:30px;background:linear-gradient(145deg,rgba(21,29,44,.96),rgba(10,14,23,.9));box-shadow:var(--shadow);overflow:hidden}
.hero-panel:before{content:"";position:absolute;width:230px;height:230px;border-radius:50%;background:rgba(157,140,255,.2);filter:blur(45px);right:-60px;top:-60px}
.panel-top{position:relative;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px}
.panel-status{color:var(--green);display:flex;align-items:center;gap:7px}
.panel-status:before{content:"";width:8px;height:8px;background:var(--green);border-radius:50%;box-shadow:0 0 12px var(--green)}
.panel-title{position:relative;margin:38px 0 21px;font-size:27px;line-height:1.3}
.risk-list{position:relative;display:grid;gap:12px}
.risk-item{display:flex;gap:13px;padding:14px;border:1px solid var(--line);background:rgba(255,255,255,.035);border-radius:16px}
.risk-icon{width:28px;height:28px;flex:0 0 28px;display:grid;place-items:center;border-radius:9px;color:#071016;background:var(--cyan);font-weight:900}
.risk-item strong{display:block;font-size:15px}
.risk-item span{display:block;color:var(--muted);font-size:13px}
.section{padding:76px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
.section h2{margin:8px 0 0;font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em}
.section-intro{max-width:620px;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(16,22,34,.78);transition:.25s ease}
.card:hover{transform:translateY(-5px);border-color:rgba(101,230,220,.48);box-shadow:0 18px 42px rgba(0,0,0,.2)}
.card h3{margin:15px 0 8px;font-size:20px}
.card p{margin:0;color:var(--muted);font-size:14px}
.card-number{color:var(--violet);font-size:13px;font-weight:900;letter-spacing:.12em}
.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px;align-items:stretch}
.dark-feature{padding:34px;border-radius:28px;background:linear-gradient(150deg,#18273b,#101622);border:1px solid rgba(101,230,220,.22)}
.dark-feature h3{font-size:29px;line-height:1.25;margin:12px 0}
.dark-feature p{color:var(--muted)}
.guide-list{display:grid;gap:12px}
.guide-item{display:grid;grid-template-columns:44px 1fr;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}
.guide-item:last-child{border-bottom:0}
.guide-step{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#071016;background:var(--violet);font-weight:900}
.guide-item h3{margin:0 0 3px;font-size:17px}
.guide-item p{margin:0;color:var(--muted);font-size:14px}
.action-band{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.action-card{padding:26px;border-radius:22px;border:1px solid var(--line);background:rgba(255,255,255,.035)}
.action-card h3{margin:0 0 8px;font-size:21px}
.action-card p{margin:0 0 18px;color:var(--muted);font-size:14px}
.badge{display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;color:var(--cyan);background:rgba(101,230,220,.1);font-size:12px;font-weight:800}
.faq{display:grid;gap:13px;max-width:850px}
.faq details{border:1px solid var(--line);border-radius:17px;background:rgba(16,22,34,.75);padding:17px 20px}
.faq summary{cursor:pointer;font-weight:800;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"＋";float:right;color:var(--cyan);font-size:20px}
.faq details[open] summary:after{content:"－"}
.faq p{margin:12px 0 2px;color:var(--muted);font-size:14px}
.cta{padding:45px;border-radius:30px;background:linear-gradient(110deg,rgba(101,230,220,.17),rgba(157,140,255,.16));border:1px solid rgba(101,230,220,.28);display:flex;justify-content:space-between;align-items:center;gap:24px}
.cta h2{margin:0 0 9px;font-size:32px}
.cta p{margin:0;color:#c7d0df}
footer{padding:38px 0 28px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.footer-grid{display:flex;justify-content:space-between;gap:25px}
.footer-links{display:flex;gap:20px;align-items:flex-start}
.footer-links a:hover{color:var(--cyan)}
@media(max-width:900px){
 .hero-grid,.split{grid-template-columns:1fr}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .hero-panel{max-width:680px}
}
@media(max-width:700px){
 .container{width:min(100% - 28px,560px)}
 .nav-links{display:none;position:absolute;top:70px;left:14px;right:14px;padding:10px;flex-direction:column;align-items:stretch;background:#101622;border:1px solid var(--line);border-radius:16px}
 .nav-links.open{display:flex}.nav-links a{text-align:center}.nav-cta{display:none}.menu-button{display:block}
 .hero{padding:60px 0 44px}.hero-copy{font-size:16px}
 .section{padding:55px 0}.section-head{display:block}.section-intro{margin-top:14px}
 .grid-3,.action-band{grid-template-columns:1fr}
 .cta{display:block;padding:30px}.cta .btn-primary{margin-top:22px}
 .footer-grid{display:block}.footer-links{margin-top:22px;flex-wrap:wrap}
}
@media(max-width:420px){h1{font-size:40px}.hero-actions a{width:100%}.hero-panel{padding:20px}}