/* roulang page: index */
:root{
      --ink:#17151a;
      --ink-soft:#25212a;
      --paper:#f5f1ed;
      --paper-deep:#ebe3dc;
      --panel:#211c24;
      --panel-2:#2b2530;
      --text:#f8f3ef;
      --muted:#b9afb8;
      --body:#514952;
      --line:rgba(40,29,39,.13);
      --line-light:rgba(255,255,255,.13);
      --accent:#d87568;
      --accent-deep:#a64f58;
      --violet:#9b89b7;
      --success:#a5c9aa;
      --radius:22px;
      --shadow:0 18px 50px rgba(35,23,31,.12);
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input,select{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    ::selection{background:var(--accent);color:#fff}
    .container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(245,241,237,.9);backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:.25s}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 24px rgba(31,22,28,.06)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.04em;font-size:18px;white-space:nowrap}
    .brand-mark{width:32px;height:32px;border:1px solid var(--ink);border-radius:10px;display:grid;place-items:center;position:relative;overflow:hidden}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;width:16px;height:1px;background:var(--accent);transform:rotate(45deg)}
    .brand-mark:after{transform:rotate(-45deg);background:var(--violet)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-link{padding:9px 14px;border-radius:10px;color:#716871;font-size:14px;transition:.2s}
    .nav-link:hover,.nav-link.active{background:#e9dfda;color:var(--ink)}
    .lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:#eee7e2;font-size:12px}
    .lang-switch span{padding:5px 10px;border-radius:999px;color:#84777e}
    .lang-switch .current{background:var(--ink);color:#fff}
    .menu-btn{display:none;border:1px solid var(--line);background:transparent;border-radius:10px;padding:7px 10px}
    .hero{padding:70px 0 36px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(112,87,102,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(112,87,102,.08) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(to bottom,black,transparent 85%);pointer-events:none}
    .hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:50px;align-items:center;position:relative}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);font-weight:800}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,6vw,78px);line-height:1.08;letter-spacing:-.07em;margin:16px 0 24px;max-width:720px}
    .hero-copy{font-size:18px;color:var(--body);max-width:650px;line-height:1.9}
    .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:12px;padding:12px 19px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
    .btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(166,79,88,.2)}
    .btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px)}
    .btn-secondary{border-color:var(--line);background:rgba(255,255,255,.32);color:var(--ink)}
    .btn-secondary:hover{border-color:var(--accent);background:#fff}
    .btn:active{transform:translateY(1px)}
    .btn:focus-visible,.nav-link:focus-visible,.lang-switch:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(216,117,104,.35);outline-offset:3px}
    .hero-panel{background:var(--panel);color:var(--text);border-radius:28px;padding:26px;box-shadow:var(--shadow);position:relative;min-height:365px}
    .hero-panel:after{content:"";position:absolute;right:24px;top:24px;width:84px;height:84px;border:1px solid rgba(216,117,104,.5);border-radius:50%}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line-light);padding-bottom:20px}
    .status{display:inline-flex;align-items:center;gap:7px;color:#d8cbd1;font-size:13px}
    .status i{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 5px rgba(165,201,170,.12)}
    .panel-title{font-size:26px;line-height:1.3;margin:28px 0 20px;max-width:360px}
    .panel-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:42px}
    .meta-box{background:var(--panel-2);padding:14px;border-radius:14px;border:1px solid var(--line-light)}
    .meta-box b{display:block;font-size:22px;color:#fff}
    .meta-box small{color:var(--muted);font-size:12px}
    .section{padding:72px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:28px}
    .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.05em;margin:8px 0 0}
    .section-head p{max-width:540px;color:var(--body);margin:0}
    .metric-band{background:var(--ink);color:var(--text);border-radius:22px;padding:24px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px}
    .metric{padding:10px 24px;border-right:1px solid var(--line-light)}
    .metric:last-child{border:0}
    .metric strong{display:block;font-size:30px;line-height:1.2;color:#fff}
    .metric span{display:block;color:#e4c4c4;margin:7px 0 2px;font-size:14px}
    .metric small{color:var(--muted);font-size:12px}
    .series-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:26px}
    .series-intro{background:var(--paper-deep);padding:30px;border-radius:var(--radius)}
    .series-intro h3{font-size:29px;line-height:1.3;margin:12px 0}
    .series-intro p{color:var(--body)}
    .index-list{display:grid;gap:10px}
    .index-item{display:flex;justify-content:space-between;align-items:center;padding:19px 20px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.38);transition:.2s}
    .index-item:hover{transform:translateX(5px);background:#fff;border-color:var(--accent)}
    .index-item b{display:block;font-size:16px}
    .index-item small{color:#837781}
    .arrow{font-size:22px;color:var(--accent-deep)}
    .matrix{display:grid;grid-template-columns:1.25fr .9fr .85fr;grid-template-rows:auto auto;gap:16px}
    .content-card{border:1px solid var(--line);border-radius:var(--radius);padding:25px;background:rgba(255,255,255,.48);transition:.24s;position:relative;overflow:hidden}
    .content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(166,79,88,.4)}
    .content-card.large{grid-row:span 2;background:var(--ink);color:var(--text);min-height:310px}
    .content-card.tall{min-height:190px}
    .content-card.slim{padding:20px;background:#e9dfda}
    .card-no{font-size:12px;color:var(--accent-deep);font-weight:800;letter-spacing:.1em}
    .content-card h3{font-size:24px;line-height:1.35;margin:28px 0 12px;letter-spacing:-.04em}
    .content-card:not(.large) h3{font-size:19px;margin:18px 0 9px}
    .content-card p{font-size:14px;color:var(--muted);line-height:1.75}
    .content-card:not(.large) p{color:var(--body)}
    .tag{display:inline-flex;padding:4px 9px;border-radius:999px;background:#ead8d4;color:var(--accent-deep);font-size:11px;font-weight:700}
    .large .tag{background:rgba(216,117,104,.18);color:#f1aaa0}
    .card-foot{position:absolute;bottom:22px;left:25px;right:25px;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#a99ba4}
    .large .card-foot{color:var(--muted)}
    .feature-strip{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .feature-box{padding:26px;border-radius:20px;background:var(--panel-2);color:#fff;min-height:175px;position:relative}
    .feature-box:nth-child(2){background:#d8c1bd;color:var(--ink)}
    .feature-box h3{font-size:22px;margin:12px 0 8px}
    .feature-box p{font-size:14px;color:var(--muted);margin:0}
    .feature-box:nth-child(2) p{color:#594e53}
    .comparison{background:var(--ink);color:var(--text);border-radius:28px;padding:34px;display:grid;grid-template-columns:1fr auto 1fr;gap:26px;align-items:stretch}
    .compare-card{background:var(--panel-2);padding:25px;border-radius:18px}
    .compare-card h3{margin:8px 0 17px;font-size:22px}
    .compare-card ul{list-style:none;padding:0;margin:0;display:grid;gap:11px;color:var(--muted);font-size:14px}
    .compare-card li:before{content:"＋";color:#d9a39b;margin-right:8px}
    .compare-divider{width:1px;background:var(--line-light);position:relative}
    .compare-divider span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--accent);border-radius:50%;width:38px;height:38px;display:grid;place-items:center;font-size:12px}
    .faq-wrap{max-width:860px;margin:auto}
    details{border-top:1px solid var(--line);padding:20px 0}
    details:last-child{border-bottom:1px solid var(--line)}
    summary{list-style:none;cursor:pointer;font-weight:750;font-size:17px;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--accent-deep);font-size:22px;line-height:1}
    details[open] summary:after{content:"－"}
    details p{color:var(--body);max-width:760px;margin:14px 35px 0 0;font-size:14px}
    .news-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .news-list{border-top:2px solid var(--ink)}
    .news-item{display:flex;justify-content:space-between;gap:20px;padding:19px 0;border-bottom:1px solid var(--line)}
    .news-item h3{font-size:16px;margin:0 0 5px}
    .news-item p{margin:0;color:#81757d;font-size:13px}
    .news-date{color:var(--accent-deep);font-size:12px;white-space:nowrap}
    .notice-card{background:var(--paper-deep);border-radius:20px;padding:25px}
    .notice-card h3{font-size:23px;margin:0 0 12px}
    .notice-card p{font-size:14px;color:var(--body)}
    .signup{background:var(--panel);color:var(--text);border-radius:28px;padding:38px;display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:center}
    .signup h2{font-size:35px;line-height:1.3;letter-spacing:-.05em;margin:10px 0 12px}
    .signup p{color:var(--muted);font-size:14px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field{width:100%;background:#302934;color:#fff;border:1px solid var(--line-light);border-radius:11px;padding:12px 14px;outline:none}
    .field::placeholder{color:#928590}
    .field:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(216,117,104,.15)}
    .consent{grid-column:1/-1;color:#a99da5;font-size:12px}
    .site-footer{background:#17151a;color:#b9afb8;padding:42px 0 25px;margin-top:72px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .site-footer .brand{color:#fff;margin-bottom:12px}
    .footer-title{color:#fff;font-weight:700;font-size:14px;margin-bottom:12px}
    .footer-link{display:block;font-size:13px;margin:7px 0;transition:.2s}
    .footer-link:hover{color:#edaaa0}
    .copyright{border-top:1px solid var(--line-light);margin-top:35px;padding-top:18px;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:900px){
      .nav-links{display:none}.menu-btn{display:block}.nav-wrap{height:68px}.nav-links.open{display:flex;position:absolute;top:68px;left:24px;right:24px;background:var(--paper);border:1px solid var(--line);padding:12px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .hero-grid,.series-layout,.news-layout,.signup{grid-template-columns:1fr}.hero{padding-top:45px}.matrix{grid-template-columns:1fr 1fr}.content-card.large{grid-row:auto;grid-column:span 2}
      .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
    }
    @media(max-width:640px){
      .container{width:min(calc(100% - 30px),var(--max))}.brand{font-size:15px}.brand-mark{width:28px;height:28px}.lang-switch{margin-left:auto}
      h1{font-size:43px}.hero-copy{font-size:16px}.hero-panel{min-height:320px;padding:21px}.panel-meta{margin-top:30px}
      .section{padding:50px 0}.section-head{display:block}.section-head p{margin-top:13px}.metric-band{grid-template-columns:1fr 1fr;padding:12px}.metric{padding:14px 12px;border-bottom:1px solid var(--line-light)}.metric:nth-child(2){border-right:0}.metric:nth-child(3),.metric:nth-child(4){border-bottom:0}
      .matrix{grid-template-columns:1fr}.content-card.large{grid-column:auto;min-height:270px}.feature-strip{grid-template-columns:1fr}
      .comparison{grid-template-columns:1fr;padding:20px}.compare-divider{height:1px;width:100%}.compare-divider span{top:50%}
      .signup{padding:25px 20px}.signup h2{font-size:29px}.form-grid{grid-template-columns:1fr}.consent{grid-column:auto}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-grid > :first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:8px}
      .nav-wrap{gap:10px}
    }

/* roulang page: category1 */
:root{
 --ink:#17151a;
 --ink-soft:#25212a;
 --paper:#f5f1ed;
 --paper-deep:#ebe3dc;
 --panel:#211c24;
 --panel-2:#2b2530;
 --text:#f8f3ef;
 --muted:#b9afb8;
 --body:#514952;
 --line:rgba(40,29,39,.13);
 --line-light:rgba(255,255,255,.13);
 --accent:#d87568;
 --accent-deep:#a64f58;
 --violet:#9b89b7;
 --success:#a5c9aa;
 --warning:#d9b482;
 --radius:22px;
 --shadow:0 18px 50px rgba(35,23,31,.12);
 --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
::selection{background:#e4bbb3;color:var(--ink)}
.container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(245,241,237,.9);backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 8px 24px rgba(31,22,28,.06)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.04em;font-size:18px;white-space:nowrap}
.brand-mark{width:32px;height:32px;border:1px solid var(--ink);border-radius:10px;display:grid;place-items:center;position:relative;overflow:hidden}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;width:16px;height:1px;background:var(--accent);transform:rotate(45deg)}
.brand-mark:after{transform:rotate(-45deg);background:var(--violet)}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-link{padding:9px 14px;border-radius:10px;color:#716871;font-size:14px;transition:.2s}
.nav-link:hover,.nav-link.active{background:#e9dfda;color:var(--ink)}
.lang-switch{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px;color:#81757e;font-size:12px;cursor:pointer}
.lang-switch span{padding:4px 9px;border-radius:999px}
.lang-switch .current{background:var(--ink);color:#fff}
.menu-btn{display:none;border:1px solid var(--line);background:transparent;border-radius:10px;padding:7px 10px}
.hero{padding:74px 0 50px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(112,87,102,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(112,87,102,.08) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(to bottom,black,transparent 90%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1fr .72fr;gap:55px;align-items:end;position:relative}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);font-weight:800}
.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.1;letter-spacing:-.075em;margin:15px 0 22px;max-width:730px}
.hero-copy{font-size:18px;color:var(--body);max-width:680px;line-height:1.9;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:12px;padding:12px 19px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(166,79,88,.2)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px)}
.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.32);color:var(--ink)}
.btn-secondary:hover{border-color:var(--accent);background:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--accent-deep);transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,.nav-link:focus-visible,.lang-switch:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(216,117,104,.35);outline-offset:3px}
.hero-note{border-left:2px solid var(--accent);padding-left:18px;color:#756971;font-size:13px;margin-top:28px}
.hero-panel{background:var(--panel);color:var(--text);border-radius:28px;padding:27px;box-shadow:var(--shadow);position:relative;min-height:300px;overflow:hidden}
.hero-panel:after{content:"";position:absolute;right:-15px;top:-24px;width:120px;height:120px;border:1px solid rgba(216,117,104,.5);border-radius:50%}
.panel-top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1}
.panel-label{font-size:11px;color:var(--muted);letter-spacing:.12em}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 5px rgba(165,201,170,.12)}
.panel-title{font-size:25px;line-height:1.35;margin:32px 0 23px;max-width:320px}
.topic-bars{display:grid;gap:12px}
.topic-row{display:grid;grid-template-columns:86px 1fr 30px;gap:10px;align-items:center;font-size:12px;color:var(--muted)}
.bar{height:5px;background:#403643;border-radius:20px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--accent);border-radius:inherit}
.panel-foot{display:flex;justify-content:space-between;margin-top:25px;padding-top:15px;border-top:1px solid var(--line-light);color:var(--muted);font-size:11px}
.section{padding:74px 0}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:28px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.05em;margin:8px 0 0}
.section-head p{max-width:540px;color:var(--body);margin:0}
.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px;border:1px solid var(--line);background:rgba(255,255,255,.38);border-radius:16px;margin-bottom:28px}
.filter-label{font-size:12px;color:#81757e;margin-right:5px}
.filter-btn{border:1px solid transparent;background:transparent;color:var(--body);padding:7px 13px;border-radius:9px;font-size:13px;transition:.2s}
.filter-btn:hover,.filter-btn.active{background:var(--ink);color:#fff}
.filter-btn:focus-visible{outline:3px solid rgba(216,117,104,.3);outline-offset:2px}
.topic-layout{display:grid;grid-template-columns:1.45fr .55fr;gap:22px;align-items:start}
.topic-list{display:grid;gap:13px}
.topic-item{display:grid;grid-template-columns:76px 1fr auto;gap:20px;align-items:center;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.46);padding:21px 23px;transition:.23s}
.topic-item:hover{background:#fff;border-color:rgba(166,79,88,.4);transform:translateX(5px);box-shadow:var(--shadow)}
.topic-number{font-size:28px;font-weight:800;color:#c3b1b0;letter-spacing:-.06em}
.topic-item h3{margin:5px 0 5px;font-size:19px;letter-spacing:-.03em}
.topic-item p{margin:0;color:var(--body);font-size:13px;line-height:1.75}
.topic-meta{font-size:11px;color:#8b7e86;white-space:nowrap}
.topic-arrow{font-size:22px;color:var(--accent-deep)}
.side-stack{display:grid;gap:16px}
.side-card{border-radius:19px;border:1px solid var(--line);padding:23px;background:#e9dfda}
.side-card.dark{background:var(--panel);color:var(--text)}
.side-card h3{font-size:20px;line-height:1.4;margin:10px 0}
.side-card p{font-size:13px;color:var(--body);margin:0}
.side-card.dark p{color:var(--muted)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}
.tag{display:inline-flex;padding:5px 10px;border-radius:999px;background:#ead8d4;color:var(--accent-deep);font-size:11px;font-weight:700}
.dark .tag{background:rgba(216,117,104,.18);color:#f1aaa0}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.timeline-card{padding:23px;border-top:2px solid var(--accent);background:rgba(255,255,255,.4);border-radius:0 0 17px 17px}
.timeline-card:nth-child(2){border-top-color:var(--violet)}
.timeline-card:nth-child(3){border-top-color:var(--success)}
.timeline-card b{display:block;font-size:25px;letter-spacing:-.05em}
.timeline-card strong{font-size:15px}
.timeline-card p{font-size:13px;color:var(--body);margin:8px 0 0}
.notice{display:flex;gap:18px;align-items:flex-start;background:#eee5df;border-radius:20px;padding:25px 28px;border:1px solid var(--line)}
.notice-mark{color:var(--accent-deep);font-size:22px;font-weight:800}
.notice h3{margin:0 0 5px;font-size:18px}
.notice p{margin:0;font-size:13px;color:var(--body)}
.faq-wrap{max-width:850px}
details{border-bottom:1px solid var(--line);padding:3px 0}
summary{list-style:none;cursor:pointer;padding:19px 3px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:"＋";color:var(--accent-deep);font-size:20px;transition:.2s}
details[open] summary:after{content:"－"}
.answer{padding:0 38px 19px 3px;color:var(--body);font-size:14px;line-height:1.9}
.cta-panel{background:var(--panel);color:var(--text);border-radius:26px;padding:37px 40px;display:grid;grid-template-columns:1fr .9fr;gap:35px;align-items:center;position:relative;overflow:hidden}
.cta-panel:before{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(155,137,183,.3);border-radius:50%;right:12%;top:-120px}
.cta-panel h2{font-size:clamp(28px,4vw,42px);line-height:1.2;letter-spacing:-.05em;margin:10px 0 12px}
.cta-panel p{color:var(--muted);font-size:14px;margin:0;max-width:500px}
.signup{position:relative;z-index:1}
.signup-row{display:flex;gap:9px}
.signup input{min-width:0;flex:1;border:1px solid var(--line-light);background:#302934;color:#fff;border-radius:11px;padding:12px 14px}
.signup input::placeholder{color:#958994}
.signup input:focus{border-color:var(--accent);outline:none}
.signup button{border:0}
.form-hint{font-size:11px;color:#9e929b;margin-top:10px}
.site-footer{background:var(--ink);color:#fff;padding:56px 0 23px;margin-top:74px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
.site-footer .brand{color:#fff;margin-bottom:14px}
.site-footer .brand-mark{border-color:#d9d0d4}
.site-footer p{color:var(--muted);line-height:1.7}
.footer-title{font-size:12px;color:#cdbfc5;font-weight:800;margin-bottom:13px;letter-spacing:.08em}
.footer-link{display:block;color:#9e929b;font-size:13px;margin:8px 0;transition:.2s}
.footer-link:hover{color:#fff;transform:translateX(3px)}
.copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line-light);margin-top:38px;padding-top:18px;color:#82767f;font-size:11px}
.empty-state{display:none;padding:27px;text-align:center;border:1px dashed var(--line);border-radius:18px;color:#81757e}
@media(max-width:900px){
 .hero-grid,.cta-panel{grid-template-columns:1fr}
 .topic-layout{grid-template-columns:1fr}
 .hero-panel{max-width:620px}
}
@media(max-width:768px){
 .container{width:min(calc(100% - 32px),var(--max))}
 .nav-wrap{height:68px;gap:12px}
 .nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav-links.open{display:flex}
 .nav-link{padding:12px 14px}
 .menu-btn{display:block;margin-left:auto}
 .lang-switch{order:2}
 .hero{padding:54px 0 35px}
 .hero h1{font-size:clamp(38px,11vw,58px)}
 .hero-copy{font-size:16px}
 .section{padding:55px 0}
 .section-head{display:block}
 .section-head p{margin-top:14px}
 .topic-item{grid-template-columns:48px 1fr auto;gap:12px;padding:18px}
 .topic-number{font-size:22px}
 .topic-item h3{font-size:17px}
 .topic-meta{display:none}
 .timeline{grid-template-columns:1fr}
 .cta-panel{padding:29px 23px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .copyright{display:block}
 .copyright span{display:block;margin-top:5px}
}
@media(max-width:520px){
 .brand{font-size:15px}
 .brand-mark{width:29px;height:29px}
 .hero-actions .btn{width:100%}
 .hero-panel{padding:22px;min-height:280px}
 .panel-title{font-size:22px}
 .filter-bar{align-items:flex-start}
 .filter-label{width:100%}
 .filter-btn{padding:8px 11px}
 .topic-item{grid-template-columns:1fr auto}
 .topic-number{display:none}
 .topic-item p{font-size:12px}
 .notice{padding:20px;gap:11px}
 .signup-row{display:grid}
 .signup button{width:100%}
 .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
      --ink:#17151a;
      --ink-soft:#25212a;
      --paper:#f5f1ed;
      --paper-deep:#ebe3dc;
      --panel:#211c24;
      --panel-2:#2b2530;
      --text:#f8f3ef;
      --muted:#b9afb8;
      --body:#514952;
      --line:rgba(40,29,39,.13);
      --line-light:rgba(255,255,255,.13);
      --accent:#d87568;
      --accent-deep:#a64f58;
      --violet:#9b89b7;
      --success:#a5c9aa;
      --radius:22px;
      --shadow:0 18px 50px rgba(35,23,31,.12);
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input,select{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(245,241,237,.92);backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:.25s}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 8px 24px rgba(31,22,28,.06)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.04em;font-size:18px;white-space:nowrap}
    .brand-mark{width:32px;height:32px;border:1px solid var(--ink);border-radius:10px;display:grid;place-items:center;position:relative;overflow:hidden}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;width:16px;height:1px;background:var(--accent);transform:rotate(45deg)}
    .brand-mark:after{transform:rotate(-45deg);background:var(--violet)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-link{padding:9px 14px;border-radius:10px;color:#716871;font-size:14px;transition:.2s}
    .nav-link:hover,.nav-link.active{background:#e9dfda;color:var(--ink)}
    .lang-switch{display:flex;gap:3px;padding:4px;border:1px solid var(--line);border-radius:999px;font-size:12px;color:#81757e}
    .lang-switch span{padding:4px 9px;border-radius:999px}
    .lang-switch .current{background:var(--ink);color:#fff}
    .menu-btn{display:none;border:1px solid var(--line);background:transparent;border-radius:10px;padding:7px 10px}
    .hero{padding:72px 0 45px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(112,87,102,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(112,87,102,.08) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(to bottom,black,transparent 85%);pointer-events:none}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;position:relative}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);font-weight:800}
    h1{font-size:clamp(40px,6vw,76px);line-height:1.1;letter-spacing:-.065em;margin:16px 0 22px;max-width:720px}
    .hero-copy{font-size:18px;color:var(--body);max-width:650px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:12px;padding:12px 19px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
    .btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(166,79,88,.2)}
    .btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px)}
    .btn-secondary{border-color:var(--line);background:rgba(255,255,255,.32);color:var(--ink)}
    .btn-secondary:hover{border-color:var(--accent);background:#fff}
    .btn:active{transform:translateY(1px)}
    .btn:focus-visible,.nav-link:focus-visible,.lang-switch:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(216,117,104,.35);outline-offset:3px}
    .hero-panel{background:var(--panel);color:var(--text);border-radius:28px;padding:28px;box-shadow:var(--shadow);position:relative;min-height:350px;overflow:hidden}
    .hero-panel:after{content:"";position:absolute;right:24px;top:24px;width:86px;height:86px;border:1px solid rgba(216,117,104,.5);border-radius:50%}
    .panel-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}
    .status-dot{width:8px;height:8px;background:var(--success);border-radius:50%;display:inline-block;margin-right:7px;box-shadow:0 0 0 5px rgba(165,201,170,.12)}
    .panel-title{font-size:28px;line-height:1.35;margin:40px 0 22px;max-width:360px}
    .panel-line{height:1px;background:var(--line-light);margin:22px 0}
    .panel-row{display:flex;justify-content:space-between;gap:18px;color:var(--muted);font-size:13px}
    .panel-row strong{color:#fff;font-size:14px}
    .section{padding:72px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:28px}
    .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.05em;margin:8px 0 0}
    .section-head p{max-width:540px;color:var(--body);margin:0}
    .tag{display:inline-flex;padding:4px 9px;border-radius:999px;background:#ead8d4;color:var(--accent-deep);font-size:11px;font-weight:700}
    .tag.violet{background:#e4ddef;color:#68567d}
    .index-band{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .metric{padding:24px 22px;border-right:1px solid var(--line)}
    .metric:last-child{border-right:0}
    .metric strong{display:block;font-size:31px;letter-spacing:-.05em}
    .metric span{display:block;color:var(--body);font-size:14px;font-weight:700}
    .metric small{color:#8b7d85;font-size:12px}
    .filter-bar{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:15px 18px;background:#e9dfda;border-radius:16px;margin-bottom:22px}
    .filter-tabs{display:flex;gap:8px;flex-wrap:wrap}
    .filter-tab{border:1px solid transparent;padding:7px 12px;border-radius:9px;background:transparent;color:#72666e;font-size:13px}
    .filter-tab:hover,.filter-tab.active{background:#fff;border-color:var(--line);color:var(--ink)}
    .filter-note{font-size:12px;color:#756a71;white-space:nowrap}
    .flow{display:grid;grid-template-columns:1.35fr .65fr;gap:16px}
    .flow-list{display:grid;gap:10px}
    .flow-item{display:grid;grid-template-columns:52px 1fr auto;gap:18px;align-items:center;padding:20px;border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.42);transition:.22s}
    .flow-item:hover{background:#fff;border-color:var(--accent);transform:translateX(4px);box-shadow:0 10px 26px rgba(35,23,31,.07)}
    .flow-no{font-size:13px;color:var(--accent-deep);font-weight:800}
    .flow-item h3{font-size:18px;margin:0 0 4px}
    .flow-item p{margin:0;color:var(--body);font-size:13px;line-height:1.7}
    .flow-meta{text-align:right;color:#8a7d84;font-size:12px}
    .side-panel{background:var(--ink);color:#fff;border-radius:22px;padding:25px;display:flex;flex-direction:column;justify-content:space-between;min-height:330px}
    .side-panel h3{font-size:25px;line-height:1.35;margin:18px 0 10px}
    .side-panel p{color:var(--muted);font-size:14px}
    .mini-list{display:grid;gap:11px;margin-top:18px}
    .mini-list div{display:flex;justify-content:space-between;border-bottom:1px solid var(--line-light);padding-bottom:9px;font-size:13px}
    .mini-list b{color:#f1aaa0}
    .compare{display:grid;grid-template-columns:1fr 1px 1fr;gap:28px;background:var(--panel-2);color:#fff;border-radius:24px;padding:30px}
    .compare-divider{background:var(--line-light)}
    .compare h3{margin:12px 0 16px;font-size:23px}
    .compare ul{list-style:none;margin:0;padding:0;display:grid;gap:11px;color:var(--muted);font-size:14px}
    .compare li:before{content:"＋";color:var(--accent);font-weight:800;margin-right:8px}
    .compare .muted-list li:before{content:"—";color:#857782}
    .compare-cta{margin-top:25px}
    .faq-wrap{max-width:880px;margin:0 auto}
    details{border-bottom:1px solid var(--line);padding:4px 0}
    summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:19px 4px;font-weight:750;font-size:16px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--accent-deep);font-size:21px;transition:.2s}
    details[open] summary:after{content:"－"}
    details p{margin:0;padding:0 40px 20px 4px;color:var(--body);font-size:14px;line-height:1.85}
    .cta-panel{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:center;background:#d8c1bd;border-radius:26px;padding:35px}
    .cta-panel h2{font-size:clamp(28px,4vw,42px);line-height:1.25;margin:9px 0 12px;letter-spacing:-.05em}
    .cta-panel p{color:#594e53;font-size:14px}
    .signup-form{display:grid;gap:12px}
    .field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    input,select{width:100%;border:1px solid rgba(40,29,39,.18);background:rgba(255,255,255,.64);border-radius:11px;padding:12px 14px;color:var(--ink)}
    input::placeholder{color:#94858a}
    .consent{font-size:12px;color:#6e6066}
    .form-message{display:none;color:#59705d;font-size:13px;font-weight:700}
    .site-footer{background:var(--ink-soft);color:#fff;padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .site-footer .brand{margin-bottom:14px}
    .site-footer .brand-mark{border-color:#fff}
    .site-footer p{color:var(--muted)}
    .footer-title{font-size:13px;color:#f1aaa0;font-weight:800;margin-bottom:13px}
    .footer-link{display:block;color:var(--muted);font-size:13px;margin:8px 0;transition:.2s}
    .footer-link:hover{color:#fff;transform:translateX(3px)}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line-light);margin-top:40px;padding-top:20px;color:#968991;font-size:12px}
    @media(max-width:900px){
      .hero-grid,.cta-panel{grid-template-columns:1fr}
      .flow{grid-template-columns:1fr}
      .index-band{grid-template-columns:repeat(2,1fr)}
      .metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .side-panel{min-height:250px}
    }
    @media(max-width:700px){
      .container{width:min(calc(100% - 32px),var(--max))}
      .nav-wrap{height:70px;gap:12px}
      .nav-links{display:none;position:absolute;top:70px;left:16px;right:16px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-link{display:block}
      .menu-btn{display:block}
      .lang-switch{margin-left:auto}
      .hero{padding:52px 0 30px}
      h1{font-size:clamp(38px,12vw,58px)}
      .hero-copy{font-size:16px}
      .section{padding:52px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .index-band{grid-template-columns:1fr 1fr}
      .metric{padding:18px 13px}
      .metric strong{font-size:25px}
      .filter-bar{display:block}
      .filter-note{display:block;margin-top:10px}
      .flow-item{grid-template-columns:36px 1fr;gap:10px;padding:16px}
      .flow-meta{grid-column:2;text-align:left}
      .compare{grid-template-columns:1fr;gap:20px;padding:24px}
      .compare-divider{height:1px;width:100%}
      .field-row{grid-template-columns:1fr}
      .cta-panel{padding:25px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .copyright{display:block}.copyright span{display:block;margin-top:7px}
    }
    @media(max-width:430px){
      .brand{font-size:15px}.brand-mark{width:29px;height:29px}
      .lang-switch span{padding:3px 7px}
      .footer-grid{grid-template-columns:1fr}
    }