/* roulang page: index */
:root{
            --bg:#060b1b;
            --bg-soft:#0a1127;
            --panel:rgba(15,28,59,.72);
            --panel-strong:rgba(17,35,75,.92);
            --line:rgba(135,171,255,.18);
            --line-bright:rgba(91,218,255,.55);
            --text:#f3f7ff;
            --muted:#9eafd0;
            --faint:#6f83a9;
            --cyan:#57e4ff;
            --blue:#638aff;
            --violet:#a184ff;
            --green:#7ce8c2;
            --radius:20px;
            --shadow:0 22px 70px rgba(0,0,0,.34);
            --glow:0 0 28px rgba(87,228,255,.18);
            --max:1220px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--text);
            background:
                radial-gradient(circle at 12% 8%,rgba(53,94,205,.18),transparent 30rem),
                radial-gradient(circle at 90% 24%,rgba(121,84,220,.12),transparent 27rem),
                linear-gradient(180deg,#050917 0%,#08122a 52%,#060b1b 100%);
            font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
            line-height:1.7;
            min-width:320px;
            overflow-x:hidden;
        }
        body:before{
            content:"";
            position:fixed;inset:0;pointer-events:none;opacity:.22;
            background-image:linear-gradient(rgba(117,164,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(117,164,255,.06) 1px,transparent 1px);
            background-size:56px 56px;
            mask-image:linear-gradient(to bottom,black,transparent 72%);
        }
        a{color:inherit;text-decoration:none}
        button,input{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:20;
            background:rgba(5,9,23,.78);
            backdrop-filter:blur(18px);
            border-bottom:1px solid rgba(137,176,255,.12);
        }
        .nav-shell{
            height:78px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:26px;
        }
        .nav-side{display:flex;align-items:center;gap:8px}
        .nav-side.right{justify-content:flex-end}
        .nav-link{
            display:inline-flex;align-items:center;min-height:42px;padding:8px 14px;
            color:var(--muted);font-size:14px;border:1px solid transparent;border-radius:11px;
            transition:.25s ease;
        }
        .nav-link:hover,.nav-link:focus-visible{color:var(--text);border-color:var(--line-bright);background:rgba(79,131,255,.1);outline:none}
        .nav-link.active{color:var(--cyan);border-color:rgba(87,228,255,.35);background:rgba(87,228,255,.07);box-shadow:0 0 18px rgba(87,228,255,.1)}
        .brand{text-align:center;font-weight:800;letter-spacing:-.03em;font-size:18px;white-space:nowrap}
        .brand-mark{
            display:inline-flex;align-items:center;gap:9px;
            background:linear-gradient(90deg,#fff,#b9d4ff 55%,var(--cyan));
            -webkit-background-clip:text;background-clip:text;color:transparent;
        }
        .brand-mark:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 15px var(--cyan)}
        .menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:8px 11px}
        .hero{padding:86px 0 76px;position:relative}
        .hero:after{content:"";position:absolute;width:420px;height:220px;right:-170px;top:20px;border:1px solid rgba(87,228,255,.13);transform:rotate(-18deg);border-radius:50%;pointer-events:none}
        .eyebrow,.tag{
            display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-size:12px;font-weight:700;
            letter-spacing:.08em;text-transform:uppercase;
        }
        .eyebrow:before{content:"";width:24px;height:1px;background:var(--cyan);box-shadow:0 0 9px var(--cyan)}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.06em;margin:18px 0 22px;max-width:850px}
        h1 em{font-style:normal;color:var(--cyan)}
        .hero-copy{font-size:18px;color:#b9c7e2;max-width:690px;margin-bottom:30px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .btn{
            min-height:46px;padding:11px 18px;border-radius:12px;border:1px solid transparent;
            display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:14px;
            transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease;
        }
        .btn:hover{transform:translateY(-2px)}
        .btn:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.2)}
        .btn:focus-visible{outline:3px solid rgba(87,228,255,.45);outline-offset:3px}
        .btn-primary{color:#041124;background:linear-gradient(110deg,var(--cyan),#6d9cff);box-shadow:0 0 25px rgba(87,228,255,.25)}
        .btn-primary:hover{box-shadow:0 0 35px rgba(87,228,255,.48)}
        .btn-ghost{color:#d9e7ff;border-color:var(--line-bright);background:rgba(10,25,57,.55)}
        .btn-ghost:hover{background:rgba(87,228,255,.1);border-color:var(--cyan)}
        .hero-strip{
            margin-top:54px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:12px;
        }
        .glass{
            background:linear-gradient(145deg,rgba(20,41,83,.78),rgba(9,19,45,.68));
            border:1px solid var(--line);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.05);
            border-radius:var(--radius);backdrop-filter:blur(14px);
        }
        .recommend{padding:25px;border-color:rgba(87,228,255,.48);box-shadow:var(--shadow),var(--glow)}
        .recommend h3{font-size:22px;margin:8px 0 8px}
        .recommend p,.mini-panel p{color:var(--muted);font-size:14px;margin-bottom:0}
        .mini-panel{padding:22px;position:relative;overflow:hidden}
        .mini-panel:after{content:"";position:absolute;right:-28px;bottom:-35px;width:100px;height:100px;border:1px solid rgba(161,132,255,.32);border-radius:50%}
        .mini-title{display:flex;justify-content:space-between;gap:12px;font-weight:700;margin-bottom:10px}
        .status{font-size:11px;color:var(--green);border:1px solid rgba(124,232,194,.35);padding:2px 7px;border-radius:20px}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.18;letter-spacing:-.04em;margin:10px 0 0}
        .section-head p{max-width:520px;color:var(--muted);margin:0}
        .problem-grid{display:grid;grid-template-columns:1.1fr .95fr .85fr;gap:15px;align-items:start}
        .problem-card{padding:27px;min-height:205px}
        .problem-card:nth-child(2){margin-top:24px}.problem-card:nth-child(3){margin-top:48px}
        .problem-card .num{font-size:13px;color:var(--violet);font-weight:800}
        .problem-card h3{font-size:22px;margin:18px 0 9px}.problem-card p{color:var(--muted);font-size:14px;margin:0}
        .solution-layout{display:grid;grid-template-columns:260px 1fr;gap:18px}
        .route{padding:18px}.route a{display:flex;align-items:center;gap:12px;padding:15px 12px;color:var(--muted);border-bottom:1px solid var(--line);font-size:14px}
        .route a:last-child{border-bottom:0}.route a:hover,.route a.active{color:var(--text);background:rgba(87,228,255,.07);border-radius:10px}
        .route b{color:var(--cyan);font-size:12px}
        .solution-main{padding:31px}
        .solution-main h3{font-size:29px;margin:12px 0}
        .solution-main>p{color:var(--muted);max-width:680px}
        .entry-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
        .entry{padding:19px;border:1px solid var(--line);border-radius:15px;background:rgba(4,13,32,.35)}
        .entry strong{display:block;font-size:18px;margin:7px 0}.entry span{font-size:13px;color:var(--muted)}
        .entry a{display:inline-block;margin-top:15px;color:var(--cyan);font-size:13px;font-weight:700}
        .result-area{display:grid;grid-template-columns:1.35fr .65fr;gap:17px}
        .result-main{padding:34px;min-height:280px;position:relative;overflow:hidden}
        .result-main h3{font-size:30px;margin:10px 0 12px}.result-main p{color:var(--muted);max-width:600px}
        .track{display:flex;gap:0;margin-top:28px}.track-item{flex:1;position:relative;padding-top:23px;color:var(--muted);font-size:13px}
        .track-item:before{content:"";position:absolute;left:0;top:5px;width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 13px var(--cyan);z-index:1}
        .track-item:after{content:"";position:absolute;left:10px;right:0;top:9px;height:1px;background:var(--line-bright)}
        .track-item:last-child:after{display:none}.track-item b{display:block;color:var(--text);margin-bottom:3px}
        .result-side{display:grid;gap:17px}.state{padding:22px}.state strong{display:block;font-size:25px;color:var(--cyan);margin-bottom:4px}.state span{color:var(--muted);font-size:13px}
        .quote-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:17px}.quote-main{padding:36px}.quote-main blockquote{font-size:25px;line-height:1.55;margin:16px 0 24px;color:#e7f1ff}.quote-by{color:var(--muted);font-size:13px}
        .quote-small{padding:23px}.quote-small p{font-size:15px;color:#d5e1f7}.quote-small span{font-size:12px;color:var(--faint)}
        .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.info-card{padding:24px}.info-card h3{margin:9px 0;font-size:19px}.info-card p{margin:0;color:var(--muted);font-size:14px}
        .faq-list{max-width:900px}.faq-item{border-bottom:1px solid var(--line);padding:3px 0}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:none;border:0;color:var(--text);padding:20px 4px;font-weight:700;font-size:16px}.faq-question span{font-size:24px;color:var(--cyan);font-weight:300;transition:.2s}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 40px 20px 4px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg)}
        .cta{padding:70px 0 100px}.cta-box{padding:48px;display:flex;align-items:center;justify-content:space-between;gap:25px;border-color:rgba(87,228,255,.38);background:radial-gradient(circle at 90% 0%,rgba(97,131,255,.23),transparent 40%),var(--panel-strong)}
        .cta-box h2{font-size:clamp(28px,4vw,45px);line-height:1.2;margin:9px 0 12px}.cta-box p{color:var(--muted);max-width:650px;margin:0}
        footer{border-top:1px solid var(--line);padding:38px 0 25px;background:rgba(3,7,18,.55)}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}.footer-brand{font-weight:800;font-size:18px}.footer-copy{color:var(--muted);font-size:13px;max-width:330px;margin-top:10px}.footer-title{color:var(--text);font-size:13px;font-weight:700;margin-bottom:12px}.footer-links{display:flex;flex-wrap:wrap;gap:10px 18px}.footer-links a{color:var(--muted);font-size:13px}.footer-links a:hover{color:var(--cyan)}.copyright{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;color:var(--faint);font-size:12px}
        .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
        @media(max-width:900px){.nav-shell{grid-template-columns:auto 1fr auto}.brand{font-size:16px}.nav-side{display:none}.menu-toggle{display:block}.brand{text-align:left}.hero-strip{grid-template-columns:1fr 1fr}.recommend{grid-column:1/-1}.problem-grid{grid-template-columns:1fr 1fr}.problem-card:nth-child(n){margin-top:0}.solution-layout{grid-template-columns:1fr}.route{display:flex;overflow:auto}.route a{white-space:nowrap;border-bottom:0;border-right:1px solid var(--line)}}
        @media(max-width:680px){.container{width:min(calc(100% - 32px),var(--max))}.nav-shell{height:68px}.hero{padding:58px 0 55px}h1{font-size:43px}.hero-copy{font-size:16px}.hero-strip,.problem-grid,.entry-row,.result-area,.quote-layout,.info-grid,.footer-grid{grid-template-columns:1fr}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:15px}.route{margin:0 -1px}.route a{padding:12px 10px}.result-main,.quote-main,.cta-box{padding:27px}.cta-box{display:block}.cta-box .hero-actions{margin-top:24px}.track{display:block}.track-item{padding:0 0 20px 27px}.track-item:before{left:2px;top:4px}.track-item:after{left:6px;top:14px;bottom:0;width:1px;height:auto}.track-item:last-child{padding-bottom:0}.track-item:last-child:after{display:none}}
        @media(max-width:480px){h1{font-size:36px}.brand{font-size:14px}.hero-actions .btn{width:100%}.hero-strip{margin-top:35px}.recommend,.mini-panel,.problem-card,.solution-main,.result-main,.state,.quote-main,.quote-small,.info-card{padding:21px}.section-head h2{font-size:29px}.cta{padding-bottom:65px}.cta-box h2{font-size:30px}}

/* roulang page: category2 */
:root{
 --bg:#060b1b;
 --bg-soft:#0a1127;
 --panel:rgba(15,28,59,.72);
 --panel-strong:rgba(17,35,75,.92);
 --line:rgba(135,171,255,.18);
 --line-bright:rgba(91,218,255,.55);
 --text:#f3f7ff;
 --muted:#9eafd0;
 --faint:#6f83a9;
 --cyan:#57e4ff;
 --blue:#638aff;
 --violet:#a184ff;
 --green:#7ce8c2;
 --radius:20px;
 --shadow:0 22px 70px rgba(0,0,0,.34);
 --glow:0 0 28px rgba(87,228,255,.18);
 --max:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;min-width:320px;overflow-x:hidden;color:var(--text);
 background:
 radial-gradient(circle at 12% 8%,rgba(53,94,205,.18),transparent 30rem),
 radial-gradient(circle at 90% 24%,rgba(121,84,220,.12),transparent 27rem),
 linear-gradient(180deg,#050917 0%,#08122a 52%,#060b1b 100%);
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
 line-height:1.7;
}
body:before{
 content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;
 background-image:linear-gradient(rgba(117,164,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(117,164,255,.06) 1px,transparent 1px);
 background-size:56px 56px;mask-image:linear-gradient(to bottom,black,transparent 72%);
}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(5,9,23,.78);backdrop-filter:blur(18px);border-bottom:1px solid rgba(137,176,255,.12)}
.nav-shell{height:78px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:26px}
.nav-side{display:flex;align-items:center;gap:8px}
.nav-side.right{justify-content:flex-end}
.nav-link{display:inline-flex;align-items:center;min-height:42px;padding:8px 14px;color:var(--muted);font-size:14px;border:1px solid transparent;border-radius:11px;transition:.25s ease}
.nav-link:hover,.nav-link:focus-visible{color:var(--text);border-color:var(--line-bright);background:rgba(79,131,255,.1);outline:none}
.nav-link.active{color:var(--cyan);border-color:rgba(87,228,255,.35);background:rgba(87,228,255,.07);box-shadow:0 0 18px rgba(87,228,255,.1)}
.brand{text-align:center;font-weight:800;letter-spacing:-.03em;font-size:18px;white-space:nowrap}
.brand-mark{display:inline-flex;align-items:center;gap:9px;background:linear-gradient(90deg,#fff,#b9d4ff 55%,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-mark:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 15px var(--cyan)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:8px 11px}
.hero{padding:72px 0 52px;position:relative}
.hero:after{content:"";position:absolute;width:430px;height:230px;right:-160px;top:15px;border:1px solid rgba(87,228,255,.13);transform:rotate(-18deg);border-radius:50%;pointer-events:none}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:24px;height:1px;background:var(--cyan);box-shadow:0 0 9px var(--cyan)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:60px;align-items:center}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,6vw,70px);line-height:1.1;letter-spacing:-.055em;margin:15px 0 22px;max-width:760px}
.hero-copy{font-size:18px;color:#b9c7e2;max-width:680px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{min-height:46px;padding:11px 18px;border-radius:12px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:14px;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.2)}
.btn:focus-visible{outline:3px solid rgba(87,228,255,.45);outline-offset:3px}
.btn-primary{color:#041124;background:linear-gradient(110deg,var(--cyan),#6d9cff);box-shadow:0 0 25px rgba(87,228,255,.25)}
.btn-primary:hover{box-shadow:0 0 35px rgba(87,228,255,.48)}
.btn-ghost{color:#d9e7ff;border-color:var(--line-bright);background:rgba(10,25,57,.55)}
.btn-ghost:hover{background:rgba(87,228,255,.1);border-color:var(--cyan)}
.glass{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(18px)}
.status-panel{padding:25px;position:relative;overflow:hidden}
.status-panel:before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:linear-gradient(var(--cyan),var(--violet))}
.panel-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid var(--line)}
.panel-top strong{font-size:17px}
.status{font-size:12px;color:var(--green);display:inline-flex;align-items:center;gap:6px}
.status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}
.zone-row{display:flex;align-items:center;gap:16px;padding:19px 0;border-bottom:1px solid var(--line)}
.zone-row:last-child{border-bottom:0;padding-bottom:2px}
.zone-code{width:52px;color:var(--cyan);font-weight:800;font-size:13px}
.zone-row h3{font-size:16px;margin:0 0 3px}
.zone-row p{color:var(--muted);font-size:13px;margin:0}
.section{padding:76px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.18;letter-spacing:-.04em;margin:10px 0 0}
.section-head p{max-width:520px;color:var(--muted);margin:0}
.page-intro{max-width:720px}
.page-intro h2{font-size:clamp(28px,4vw,42px);letter-spacing:-.04em;line-height:1.2;margin:12px 0}
.index-layout{display:grid;grid-template-columns:240px minmax(0,1fr) 280px;gap:18px;align-items:start}
.side-index{padding:14px;position:sticky;top:100px}
.side-index a{display:flex;justify-content:space-between;align-items:center;padding:13px 14px;color:var(--muted);border-bottom:1px solid var(--line);font-size:14px}
.side-index a:last-child{border-bottom:0}
.side-index a:hover,.side-index a.active{color:var(--text);background:rgba(87,228,255,.08);border-radius:10px}
.side-index a span{color:var(--faint);font-size:12px}
.content-list{display:grid;gap:14px}
.content-card{padding:24px 26px;position:relative;overflow:hidden;transition:.25s ease}
.content-card:after{content:"";position:absolute;right:0;top:0;width:90px;height:2px;background:linear-gradient(90deg,transparent,var(--cyan))}
.content-card:hover{transform:translateY(-3px);border-color:var(--line-bright);box-shadow:var(--shadow),var(--glow)}
.card-meta{display:flex;justify-content:space-between;gap:15px;align-items:center;color:var(--faint);font-size:12px}
.tag{letter-spacing:.02em;color:var(--cyan);background:rgba(87,228,255,.08);padding:4px 9px;border:1px solid rgba(87,228,255,.2);border-radius:7px}
.content-card h3{font-size:21px;margin:14px 0 7px}
.content-card p{color:var(--muted);font-size:14px;margin:0;max-width:680px}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:19px;padding-top:15px;border-top:1px solid var(--line)}
.card-foot a{color:var(--cyan);font-size:13px;font-weight:700}
.side-stack{display:grid;gap:14px}
.side-card{padding:22px}
.side-card h3{font-size:18px;margin:10px 0 8px}
.side-card p{color:var(--muted);font-size:13px;margin:0}
.route-line{display:flex;gap:10px;align-items:center;padding:11px 0;border-bottom:1px solid var(--line);font-size:13px}
.route-line:last-child{border-bottom:0}
.route-line i{width:8px;height:8px;background:var(--blue);border-radius:50%;box-shadow:0 0 10px var(--blue)}
.note{border-left:2px solid var(--violet);padding-left:13px;color:var(--muted);font-size:13px;margin-top:20px}
.faq{max-width:860px}
.faq-item{border:1px solid var(--line);background:rgba(15,28,59,.58);border-radius:14px;margin-bottom:10px;overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"＋";color:var(--cyan);font-size:20px;line-height:1}
.faq-item[open] summary:after{content:"－"}
.faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14px;max-width:760px}
.cta{padding:43px 48px;display:flex;justify-content:space-between;align-items:center;gap:30px;position:relative;overflow:hidden}
.cta:before{content:"";position:absolute;width:260px;height:260px;right:5%;top:-150px;border:1px solid rgba(87,228,255,.2);border-radius:50%}
.cta h2{font-size:clamp(27px,4vw,42px);line-height:1.2;margin:0 0 10px}
.cta p{color:var(--muted);margin:0;max-width:640px}
footer{margin-top:80px;padding:48px 0 25px;border-top:1px solid rgba(137,176,255,.14);background:rgba(3,7,18,.45)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px}
.footer-brand{font-weight:800;font-size:20px;color:#dceaff}
.footer-copy{color:var(--muted);font-size:13px;max-width:360px;margin:12px 0 0}
.footer-title{font-weight:700;margin-bottom:13px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:var(--muted);font-size:13px}
.footer-links a:hover{color:var(--cyan)}
.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:18px;color:var(--faint);font-size:12px}
@media(max-width:1024px){
 .index-layout{grid-template-columns:210px minmax(0,1fr)}
 .side-stack{grid-column:1/-1;grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(calc(100% - 32px),var(--max))}
 .nav-shell{height:68px;display:flex;justify-content:space-between}
 .brand{order:1}
 .menu-toggle{display:block;order:2}
 .nav-side{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;flex-direction:column;align-items:stretch;background:rgba(8,16,39,.96);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
 .nav-side.open{display:flex}
 .nav-side.right{justify-content:initial}
 .nav-link{justify-content:center}
 .hero{padding:56px 0 35px}
 .hero-grid{grid-template-columns:1fr;gap:30px}
 .index-layout{grid-template-columns:1fr}
 .side-index{position:static;display:flex;overflow:auto;gap:7px;padding:8px}
 .side-index a{min-width:max-content;border:1px solid var(--line);border-radius:9px}
 .side-index a span{display:none}
 .section{padding:58px 0}
 .section-head{display:block}
 .section-head p{margin-top:15px}
 .cta{display:block;padding:32px 25px}
 .cta .btn{margin-top:24px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:480px){
 h1{font-size:38px}
 .hero-copy{font-size:16px}
 .hero-actions,.hero-actions .btn{width:100%}
 .status-panel{padding:19px}
 .content-card{padding:20px}
 .card-meta{align-items:flex-start;flex-direction:column;gap:8px}
 .card-foot{align-items:flex-start;gap:10px;flex-direction:column}
 .side-stack{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
 .copyright{margin-top:27px}
}

/* roulang page: category1 */
:root{
 --bg:#060b1b;
 --bg-soft:#0a1127;
 --panel:rgba(15,28,59,.72);
 --panel-strong:rgba(17,35,75,.92);
 --line:rgba(135,171,255,.18);
 --line-bright:rgba(91,218,255,.55);
 --text:#f3f7ff;
 --muted:#9eafd0;
 --faint:#6f83a9;
 --cyan:#57e4ff;
 --blue:#638aff;
 --violet:#a184ff;
 --green:#7ce8c2;
 --danger:#ff8eaa;
 --radius:20px;
 --shadow:0 22px 70px rgba(0,0,0,.34);
 --glow:0 0 28px rgba(87,228,255,.18);
 --max:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;color:var(--text);min-width:320px;overflow-x:hidden;line-height:1.7;
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
 background:
 radial-gradient(circle at 12% 8%,rgba(53,94,205,.18),transparent 30rem),
 radial-gradient(circle at 90% 24%,rgba(121,84,220,.12),transparent 27rem),
 linear-gradient(180deg,#050917 0%,#08122a 52%,#060b1b 100%);
}
body:before{
 content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;
 background-image:linear-gradient(rgba(117,164,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(117,164,255,.06) 1px,transparent 1px);
 background-size:56px 56px;
 mask-image:linear-gradient(to bottom,black,transparent 72%);
}
body:after{
 content:"";position:fixed;inset:0;pointer-events:none;opacity:.035;
 background:repeating-linear-gradient(0deg,transparent 0,transparent 3px,rgba(255,255,255,.4) 4px);
}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
h1,h2,h3,p{margin-top:0}
.container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
.glass{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow);backdrop-filter:blur(18px);
}
.site-header{
 position:sticky;top:0;z-index:20;background:rgba(5,9,23,.78);
 backdrop-filter:blur(18px);border-bottom:1px solid rgba(137,176,255,.12);
}
.nav-shell{height:78px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:26px}
.nav-side{display:flex;align-items:center;gap:8px}
.nav-side.right{justify-content:flex-end}
.nav-link{
 display:inline-flex;align-items:center;min-height:42px;padding:8px 14px;color:var(--muted);
 font-size:14px;border:1px solid transparent;border-radius:11px;transition:.25s ease;
}
.nav-link:hover,.nav-link:focus-visible{
 color:var(--text);border-color:var(--line-bright);background:rgba(79,131,255,.1);outline:none
}
.nav-link.active{
 color:var(--cyan);border-color:rgba(87,228,255,.35);background:rgba(87,228,255,.07);
 box-shadow:0 0 18px rgba(87,228,255,.1)
}
.brand{text-align:center;font-weight:800;letter-spacing:-.03em;font-size:18px;white-space:nowrap}
.brand-mark{
 display:inline-flex;align-items:center;gap:9px;
 background:linear-gradient(90deg,#fff,#b9d4ff 55%,var(--cyan));
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-mark:before{
 content:"";width:9px;height:9px;border-radius:50%;background:var(--cyan);
 box-shadow:0 0 15px var(--cyan)
}
.menu-toggle{
 display:none;background:none;border:1px solid var(--line);color:var(--text);
 border-radius:10px;padding:8px 11px;line-height:1
}
.eyebrow,.tag{
 display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-size:12px;
 font-weight:700;letter-spacing:.08em
}
.eyebrow:before{content:"";width:24px;height:1px;background:var(--cyan);box-shadow:0 0 9px var(--cyan)}
.hero{padding:76px 0 60px;position:relative}
.hero:after{
 content:"";position:absolute;width:420px;height:220px;right:-170px;top:20px;
 border:1px solid rgba(87,228,255,.13);transform:rotate(-18deg);border-radius:50%;pointer-events:none
}
.breadcrumb{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:13px;margin-bottom:24px}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span{color:var(--line-bright)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:58px;align-items:center}
h1{
 font-size:clamp(38px,5.5vw,70px);line-height:1.1;letter-spacing:-.055em;margin:16px 0 22px;
 max-width:760px
}
.gradient-text{
 background:linear-gradient(100deg,#fff 15%,#c4d8ff 50%,var(--cyan));
 -webkit-background-clip:text;background-clip:text;color:transparent
}
.hero-copy{font-size:18px;color:#b9c7e2;max-width:680px;margin-bottom:30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
 min-height:46px;padding:11px 18px;border-radius:12px;border:1px solid transparent;
 display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:14px;
 transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.2)}
.btn:focus-visible{outline:3px solid rgba(87,228,255,.45);outline-offset:3px}
.btn-primary{color:#041124;background:linear-gradient(110deg,var(--cyan),#6d9cff);box-shadow:0 0 25px rgba(87,228,255,.25)}
.btn-primary:hover{box-shadow:0 0 35px rgba(87,228,255,.48)}
.btn-ghost{color:#d9e7ff;border-color:var(--line-bright);background:rgba(10,25,57,.55)}
.btn-ghost:hover{background:rgba(87,228,255,.1);border-color:var(--cyan)}
.btn-disabled{opacity:.42;pointer-events:none;filter:grayscale(.3)}
.panel-label{
 display:flex;justify-content:space-between;align-items:center;padding-bottom:17px;
 border-bottom:1px solid var(--line);color:var(--muted);font-size:13px
}
.state-dot{width:8px;height:8px;display:inline-block;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.hero-panel{padding:25px;position:relative;overflow:hidden}
.hero-panel:before{
 content:"";position:absolute;right:22px;top:60px;width:120px;height:120px;border:1px solid rgba(161,132,255,.28);
 border-radius:50%;box-shadow:0 0 50px rgba(99,138,255,.12)
}
.zone-stack{display:grid;gap:11px;margin-top:20px;position:relative}
.zone-line{
 display:grid;grid-template-columns:58px 1fr auto;gap:13px;align-items:center;
 padding:15px 14px;border:1px solid var(--line);background:rgba(8,19,45,.62);border-radius:14px;
 transition:.25s ease
}
.zone-line:hover{border-color:var(--line-bright);transform:translateX(4px);box-shadow:var(--glow)}
.zone-number{color:var(--violet);font-size:12px;font-weight:800}
.zone-line strong{display:block;font-size:15px}
.zone-line small{display:block;color:var(--faint);font-size:12px;margin-top:2px}
.zone-state{font-size:11px;color:var(--green);border:1px solid rgba(124,232,194,.25);padding:3px 7px;border-radius:7px}
.section{padding:76px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.18;letter-spacing:-.04em;margin:10px 0 0}
.section-head p{max-width:540px;color:var(--muted);margin:0}
.section-kicker{color:var(--violet);font-size:13px;font-weight:700}
.category-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:22px;align-items:start}
.filter-panel{padding:18px;position:sticky;top:100px}
.filter-title{font-weight:800;font-size:16px;margin:4px 0 14px}
.filter-note{font-size:12px;color:var(--faint);margin:14px 4px 0}
.filter-list{display:grid;gap:6px}
.filter-list a{
 display:flex;justify-content:space-between;align-items:center;padding:12px 11px;color:var(--muted);
 border-radius:10px;font-size:14px;transition:.2s ease
}
.filter-list a:hover,.filter-list a.active{color:var(--text);background:rgba(87,228,255,.09)}
.filter-list a.active{box-shadow:inset 2px 0 var(--cyan)}
.filter-list b{font-size:11px;color:var(--faint);font-weight:500}
.content-index{display:grid;gap:14px}
.index-card{
 display:grid;grid-template-columns:58px minmax(0,1fr) auto;gap:20px;align-items:center;
 padding:23px 25px;min-height:145px;position:relative;overflow:hidden;
 transition:.25s ease
}
.index-card:before{
 content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;
 background:linear-gradient(var(--cyan),var(--violet));box-shadow:0 0 16px var(--cyan)
}
.index-card:hover{border-color:var(--line-bright);transform:translateY(-3px);box-shadow:var(--shadow),var(--glow)}
.card-index{font-size:23px;font-weight:800;color:var(--violet)}
.card-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:7px}
.card-meta .tag{font-size:11px;letter-spacing:.02em}
.card-meta time{font-size:12px;color:var(--faint)}
.index-card h3{font-size:20px;margin:0 0 5px}
.index-card p{font-size:14px;color:var(--muted);margin:0;max-width:650px}
.card-arrow{color:var(--cyan);font-size:14px;font-weight:700;white-space:nowrap}
.route-section{padding-top:20px}
.route-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:20px}
.route-card{padding:27px}
.route-card h3{font-size:24px;margin:9px 0 10px}
.route-card p{color:var(--muted);font-size:14px}
.route-list{display:grid;gap:8px;margin-top:20px}
.route-list a{
 display:flex;align-items:center;gap:12px;padding:12px;border-bottom:1px solid var(--line);
 color:var(--muted);font-size:14px;transition:.2s ease
}
.route-list a:hover{color:var(--text);padding-left:17px}
.route-list i{font-style:normal;color:var(--cyan);font-size:12px}
.info-band{
 display:grid;grid-template-columns:1.25fr .75fr;gap:20px;align-items:stretch
}
.experience-card{padding:30px;min-height:250px;position:relative;overflow:hidden}
.experience-card h2{font-size:30px;max-width:540px;line-height:1.25;margin:12px 0}
.experience-card p{color:var(--muted);max-width:600px}
.experience-card:after{
 content:"二区 → 三区 → 四区";position:absolute;right:25px;bottom:24px;color:rgba(87,228,255,.22);
 font-size:18px;font-weight:800;letter-spacing:.04em
}
.status-card{padding:25px;display:flex;flex-direction:column;justify-content:space-between}
.status-row{display:flex;justify-content:space-between;gap:15px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
.status-row:last-child{border-bottom:0}
.status-row span{color:var(--muted)}
.status-row strong{color:var(--green);font-size:13px}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:30px;align-items:start}
.faq-intro p{color:var(--muted);font-size:15px}
.faq-list{display:grid;gap:10px}
details{border:1px solid var(--line);border-radius:14px;background:rgba(15,28,59,.58);transition:.2s ease}
details[open]{border-color:var(--line-bright);box-shadow:var(--glow)}
summary{
 list-style:none;cursor:pointer;padding:18px 20px;font-weight:700;display:flex;align-items:center;
 justify-content:space-between;gap:20px
}
summary::-webkit-details-marker{display:none}
summary:after{content:"＋";font-size:20px;color:var(--cyan);font-weight:400}
details[open] summary:after{content:"−"}
.faq-answer{padding:0 20px 19px;color:var(--muted);font-size:14px;max-width:760px}
.cta{
 padding:46px 50px;position:relative;overflow:hidden;
 background:linear-gradient(110deg,rgba(19,54,105,.85),rgba(36,31,88,.78));
 border:1px solid rgba(87,228,255,.34);box-shadow:var(--shadow),0 0 48px rgba(87,228,255,.12)
}
.cta:before,.cta:after{content:"";position:absolute;border:1px solid rgba(87,228,255,.18);border-radius:50%;pointer-events:none}
.cta:before{width:290px;height:290px;right:-100px;top:-140px}
.cta:after{width:170px;height:170px;right:50px;bottom:-110px}
.cta h2{font-size:clamp(28px,4vw,45px);line-height:1.18;margin:10px 0 10px;max-width:700px}
.cta p{color:#b9c7e2;max-width:650px;margin-bottom:23px}
.state-note{
 margin-top:24px;display:flex;gap:10px;align-items:center;color:var(--faint);font-size:12px
}
.state-note .state-dot{width:6px;height:6px}
.status-samples{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.status-samples span{font-size:11px;border-radius:7px;padding:4px 8px;border:1px solid var(--line);color:var(--muted)}
.status-samples .error{color:var(--danger);border-color:rgba(255,142,170,.3)}
.status-samples .empty{color:var(--faint)}
footer{border-top:1px solid rgba(135,171,255,.14);padding:42px 0 25px;margin-top:30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
.footer-brand{font-weight:800;font-size:18px;margin-bottom:10px}
.footer-copy{color:var(--muted);font-size:13px;max-width:330px;margin:0}
.footer-title{font-weight:700;font-size:13px;color:var(--text);margin-bottom:12px}
.footer-links{display:grid;gap:7px}
.footer-links a{color:var(--muted);font-size:13px;transition:.2s ease}
.footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
.copyright{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;color:var(--faint);font-size:12px}
@media(max-width:900px){
 .hero-grid{grid-template-columns:1fr;gap:32px}
 .category-layout{grid-template-columns:1fr}
 .filter-panel{position:static}
 .filter-list{grid-template-columns:repeat(3,1fr)}
 .info-band,.faq-grid,.route-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
 .container{width:min(calc(100% - 32px),var(--max))}
 .nav-shell{height:68px;display:flex;justify-content:space-between}
 .brand{order:1;font-size:15px}
 .menu-toggle{display:block;order:2}
 .nav-side{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;flex-direction:column;align-items:stretch;
  background:rgba(7,15,37,.97);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)
 }
 .nav-side.open{display:flex}
 .nav-side.right{justify-content:initial}
 .nav-link{width:100%;min-height:46px}
 .hero{padding:53px 0 40px}
 .section{padding:58px 0}
 .section-head{display:block}
 .section-head p{margin-top:14px}
 .index-card{grid-template-columns:44px 1fr}
 .index-card .card-arrow{grid-column:2}
 .filter-list{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr 1fr}
 .footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:480px){
 .container{width:min(calc(100% - 24px),var(--max))}
 h1{font-size:38px}
 .hero-copy{font-size:16px}
 .hero-actions,.hero-actions .btn{width:100%}
 .hero-actions .btn{min-height:49px}
 .hero-panel,.route-card,.experience-card,.status-card{padding:20px}
 .zone-line{grid-template-columns:45px 1fr;gap:9px}
 .zone-state{grid-column:2;justify-self:start}
 .index-card{padding:20px 18px;gap:13px}
 .index-card h3{font-size:18px}
 .index-card p{font-size:13px}
 .filter-list{grid-template-columns:1fr}
 .cta{padding:30px 22px}
 .cta h2{font-size:29px}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
 .breadcrumb{font-size:12px}
}