/* roulang page: index */
:root{
  --bg:#11120f;
  --bg-soft:#171914;
  --panel:#1b1e18;
  --panel-2:#22261e;
  --line:rgba(216,215,203,.16);
  --line-bright:rgba(200,242,74,.5);
  --text:#f0f0e8;
  --muted:#aaaca0;
  --quiet:#777b70;
  --lime:#c8f24a;
  --lime-light:#ddff76;
  --ink:#16190f;
  --orange:#d98a4a;
  --radius:18px;
  --radius-sm:11px;
  --shadow:0 18px 45px rgba(0,0,0,.24);
  --container:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-2;background-image:linear-gradient(rgba(216,215,203,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(216,215,203,.028) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,black,transparent 78%)}
body:after{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;opacity:.18;background-image:radial-gradient(rgba(255,255,255,.4) .55px,transparent .55px);background-size:5px 5px}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 64px));margin:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--lime);color:var(--ink);padding:8px 14px;border-radius:8px;font-weight:700;z-index:100}
.skip:focus{left:16px}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:rgba(17,18,15,.88);backdrop-filter:blur(12px)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.04em;font-size:16px;white-space:nowrap}
.brand-mark{width:25px;height:25px;border:1px solid var(--lime);border-radius:7px;position:relative;transform:rotate(45deg)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--lime)}
.brand-mark:before{width:5px;height:5px;border-radius:50%;top:4px;left:4px}
.brand-mark:after{height:1px;width:13px;right:2px;bottom:5px}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14px;color:var(--muted)}
.nav-links a{position:relative;padding:8px 0;transition:color .2s ease}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime)}
.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:11px;min-height:46px;padding:0 17px;font-weight:750;font-size:14px;transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease}
.nav-cta,.button-primary{background:var(--lime);color:var(--ink)}
.nav-cta:hover,.button-primary:hover{background:var(--lime-light);transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,242,74,.14)}
.button-secondary{background:rgba(255,255,255,.02);border-color:var(--line);color:var(--text)}
.button-secondary:hover{border-color:var(--line-bright);background:rgba(200,242,74,.06);transform:translateY(-2px)}
.button:active,.nav-cta:active{transform:translateY(1px)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.menu-toggle{display:none;border:1px solid var(--line);color:var(--text);background:transparent;border-radius:9px;width:43px;height:43px}
.hero{padding:60px 0 28px}
.statusline{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;letter-spacing:.09em;text-transform:uppercase;margin-bottom:22px}
.dot{width:7px;height:7px;background:var(--lime);border-radius:50%;box-shadow:0 0 0 5px rgba(200,242,74,.09)}
.bento{display:grid;grid-template-columns:1.32fr .68fr;grid-template-rows:auto auto;gap:16px}
.hero-main{grid-row:span 2;min-height:475px;padding:52px;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(135deg,#1d2019 0%,#151712 64%,#22271a 100%);display:flex;flex-direction:column;justify-content:flex-end}
.hero-main:before{content:"";position:absolute;width:440px;height:440px;right:-130px;top:-155px;border:1px solid rgba(200,242,74,.24);border-radius:50%}
.hero-main:after{content:"";position:absolute;width:340px;height:340px;right:-102px;top:-105px;border:1px solid rgba(216,215,203,.15);border-radius:50%;box-shadow:inset 0 0 0 45px rgba(200,242,74,.025)}
.eyebrow,.badge{display:inline-flex;align-items:center;gap:7px;width:max-content;color:var(--lime);font-size:12px;letter-spacing:.08em;font-weight:700}
.eyebrow:before{content:"01";color:var(--orange);margin-right:5px}
h1,h2,h3,p{margin-top:0}
h1{position:relative;max-width:740px;margin:18px 0 18px;font-size:clamp(40px,5.2vw,74px);line-height:1.12;letter-spacing:-.07em}
.hero-main p{position:relative;max-width:640px;color:var(--muted);font-size:16px;margin-bottom:28px}
.hero-actions{position:relative;display:flex;gap:11px;flex-wrap:wrap}
.hero-side{padding:25px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);min-height:190px;position:relative;overflow:hidden}
.hero-side:after{content:"";position:absolute;inset:auto -40px -78px auto;width:160px;height:160px;border:1px solid rgba(200,242,74,.17);transform:rotate(25deg)}
.hero-side h3{font-size:17px;line-height:1.35;margin:10px 0 7px}
.hero-side p{color:var(--muted);font-size:13px;line-height:1.7;margin:0;max-width:300px}
.metric{font-size:38px;font-weight:850;letter-spacing:-.07em;color:var(--lime);line-height:1}
.metric-label{margin-top:9px;color:var(--muted);font-size:13px}
.cta-strip{margin-top:16px;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:17px 20px;border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.018)}
.cta-strip span{font-size:13px;color:var(--muted)}
.cta-strip strong{font-size:14px;color:var(--text)}
.section{padding:104px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:32px;margin-bottom:34px}
.section-kicker{font-size:12px;color:var(--lime);letter-spacing:.12em;font-weight:800}
h2{font-size:clamp(29px,3.5vw,45px);line-height:1.22;letter-spacing:-.055em;margin:8px 0 0}
.section-intro{max-width:510px;color:var(--muted);font-size:15px;margin:0}
.path-band{padding:23px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.path-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;min-height:31px;padding:0 11px;border:1px solid var(--line);border-radius:7px;color:var(--muted);font-size:12px;background:rgba(255,255,255,.018);transition:.2s ease}
.tag:hover{border-color:var(--line-bright);color:var(--text)}
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.matrix-card{position:relative;min-height:218px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);overflow:hidden;transition:.25s ease}
.matrix-card:before{content:"";position:absolute;left:-110%;top:0;width:80%;height:1px;background:var(--lime);box-shadow:0 0 15px var(--lime);transition:left .45s ease}
.matrix-card:hover{transform:translateY(-5px);border-color:rgba(200,242,74,.42);box-shadow:var(--shadow)}
.matrix-card:hover:before{left:120%}
.matrix-card.large{grid-column:span 2;background:linear-gradient(125deg,#20251b,#1a1e17)}
.matrix-card.tall{min-height:265px}
.card-no{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.1em}
.matrix-card h3{font-size:21px;line-height:1.3;margin:38px 0 9px;letter-spacing:-.04em}
.matrix-card p{font-size:13px;color:var(--muted);margin:0;max-width:300px}
.card-go{position:absolute;right:22px;bottom:19px;color:var(--lime);font-size:21px;transition:transform .2s ease}
.matrix-card:hover .card-go{transform:translateX(5px)}
.feature-wall{display:grid;grid-template-columns:.85fr 1.15fr;gap:16px}
.wall-lead,.wall-list{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.wall-lead{padding:35px;min-height:330px;background:linear-gradient(145deg,#22271c,#171914);position:relative;overflow:hidden}
.wall-lead:after{content:"";position:absolute;right:-24px;bottom:-50px;width:200px;height:200px;border:1px solid rgba(200,242,74,.24);border-radius:50%}
.wall-lead h3{font-size:28px;line-height:1.3;max-width:370px;position:relative}
.wall-lead p{color:var(--muted);font-size:14px;max-width:395px;position:relative}
.wall-list{display:grid;grid-template-columns:1fr 1fr}
.wall-item{padding:27px;border-bottom:1px solid var(--line);position:relative}
.wall-item:nth-child(odd){border-right:1px solid var(--line)}
.wall-item:nth-last-child(-n+2){border-bottom:0}
.wall-item h3{font-size:16px;margin:16px 0 7px}
.wall-item p{font-size:13px;color:var(--muted);margin:0}
.compare{display:grid;grid-template-columns:1fr 52px 1fr;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);overflow:hidden}
.compare-side{padding:37px}
.compare-side.good{background:linear-gradient(145deg,rgba(200,242,74,.08),transparent 60%)}
.compare-axis{display:flex;flex-direction:column;justify-content:space-around;align-items:center;border-left:1px solid var(--line);border-right:1px solid var(--line);color:var(--lime);font-size:12px}
.axis-mark{width:10px;height:10px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(200,242,74,.1)}
.compare h3{font-size:26px;margin-bottom:8px}
.compare p{font-size:14px;color:var(--muted)}
.compare ul{list-style:none;padding:0;margin:23px 0 0}
.compare li{display:flex;gap:11px;padding:10px 0;border-top:1px solid var(--line);font-size:14px}
.compare li:before{content:"—";color:var(--lime);font-weight:bold}
.news-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
.news-list,.news-feature{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.news-item{display:grid;grid-template-columns:80px 1fr auto;align-items:center;gap:18px;padding:20px 24px;border-bottom:1px solid var(--line);transition:.2s ease}
.news-item:last-child{border-bottom:0}
.news-item:hover{background:rgba(200,242,74,.045)}
.news-date{font-size:12px;color:var(--quiet)}
.news-item h3{font-size:16px;margin:0 0 2px}
.news-item p{font-size:12px;color:var(--muted);margin:0}
.news-arrow{color:var(--lime);font-size:21px}
.news-feature{padding:30px;background:linear-gradient(145deg,#20251b,#181a15)}
.news-feature h3{font-size:25px;line-height:1.35;margin:25px 0 10px}
.news-feature p{font-size:14px;color:var(--muted)}
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;align-items:start}
.faq-intro p{color:var(--muted);font-size:15px}
.notice{margin-top:23px;border-left:2px solid var(--lime);padding:12px 0 12px 15px;color:var(--muted);font-size:13px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;padding:22px 2px;display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--text);background:transparent;border:0;text-align:left;font-weight:750;font-size:16px}
.faq-question span:last-child{font-size:23px;color:var(--lime);font-weight:400}
.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq-answer>div{overflow:hidden}
.faq-answer p{color:var(--muted);font-size:14px;margin:0;padding-bottom:0}
.faq-item.open .faq-answer{grid-template-rows:1fr}
.faq-item.open .faq-answer p{padding-bottom:22px}
.form-area{padding:45px;border:1px solid var(--line);border-radius:var(--radius);background:#1a1d17;position:relative;overflow:hidden}
.form-area:before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(200,242,74,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(200,242,74,.045) 1px,transparent 1px);background-size:31px 31px;mask-image:linear-gradient(90deg,black,transparent 70%)}
.form-grid{position:relative;display:grid;grid-template-columns:.78fr 1.22fr;gap:55px;align-items:start}
.form-copy .number{font-size:75px;line-height:1;color:rgba(200,242,74,.22);font-weight:900;letter-spacing:-.08em}
.form-copy h2{margin-top:-11px}
.form-copy p{color:var(--muted);font-size:14px;max-width:390px}
.form-panel{padding:26px;background:rgba(17,18,15,.76);border:1px solid var(--line);border-radius:15px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13px;margin-bottom:7px;color:var(--muted)}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:9px;background:#151712;color:var(--text);padding:12px 13px;outline:0;transition:.2s ease}
.field textarea{min-height:88px;resize:vertical}
.field input:hover,.field textarea:hover{border-color:rgba(216,215,203,.35)}
.field input:focus,.field textarea:focus{border-color:var(--lime);box-shadow:0 0 0 3px rgba(200,242,74,.1)}
.choice-list{display:flex;gap:8px;flex-wrap:wrap}
.choice{position:relative}
.choice input{position:absolute;opacity:0;pointer-events:none}
.choice span{display:block;padding:7px 10px;border:1px solid var(--line);border-radius:7px;color:var(--muted);font-size:12px;transition:.2s ease}
.choice input:checked+span{background:rgba(200,242,74,.12);border-color:var(--lime);color:var(--lime)}
.form-note{font-size:12px;color:var(--quiet);margin:13px 0 0}
.form-status{display:none;margin-top:12px;color:var(--lime);font-size:13px}
.site-footer{margin-top:104px;border-top:1px solid var(--line);background:#0d0e0c}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding:58px 0 38px}
.footer-brand p{font-size:13px;color:var(--muted);max-width:370px;margin:15px 0}
.footer-title{font-size:12px;color:var(--quiet);letter-spacing:.1em;margin-bottom:12px}
.footer-links{display:flex;flex-direction:column;gap:9px;font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--lime)}
.copyright{border-top:1px solid var(--line);padding:18px 0 25px;color:var(--quiet);font-size:12px;display:flex;justify-content:space-between;gap:20px}
.mobile-menu{display:none}
@media(max-width:1024px){
  .container{width:min(100% - 48px,var(--container))}
  .nav-links{gap:17px}
  .hero-main{padding:40px}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .faq-layout{gap:38px}
}
@media(max-width:768px){
  .container{width:calc(100% - 32px)}
  .nav{height:67px}
  .nav-links,.nav-cta{display:none}
  .menu-toggle{display:grid;place-items:center}
  .mobile-menu{position:fixed;inset:67px 0 0;background:rgba(17,18,15,.98);z-index:20;padding:28px 16px;transform:translateX(100%);transition:transform .28s ease}
  .mobile-menu.open{transform:translateX(0)}
  .mobile-menu a{display:block;padding:18px 0;border-bottom:1px solid var(--line);font-size:25px;font-weight:750}
  .mobile-menu .button{margin-top:27px;width:100%}
  .hero{padding-top:32px}
  .bento{grid-template-columns:1fr;grid-template-rows:auto}
  .hero-main{grid-row:auto;min-height:430px;padding:31px 25px}
  .hero-side{min-height:150px}
  .cta-strip{align-items:flex-start;flex-direction:column}
  .section{padding:68px 0}
  .section-head{display:block}
  .section-intro{margin-top:15px}
  .feature-wall,.faq-layout,.form-grid,.news-layout{grid-template-columns:1fr}
  .faq-layout{gap:24px}
  .compare{grid-template-columns:1fr}
  .compare-axis{height:48px;flex-direction:row;border:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .compare-side{padding:28px 23px}
  .form-area{padding:25px 18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:span 2}
}
@media(max-width:520px){
  h1{font-size:40px}
  .hero-main p{font-size:14px}
  .hero-actions,.hero-actions .button{width:100%}
  .matrix{grid-template-columns:1fr}
  .matrix-card.large{grid-column:span 1}
  .matrix-card,.matrix-card.tall{min-height:195px}
  .wall-list{grid-template-columns:1fr}
  .wall-item:nth-child(odd){border-right:0}
  .wall-item:nth-last-child(2){border-bottom:1px solid var(--line)}
  .news-item{grid-template-columns:1fr auto;gap:7px;padding:17px}
  .news-date{grid-column:span 2}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .copyright{display:block}
}
@media(prefers-reduced-motion:reduce){
  *,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}
}

/* roulang page: category1 */
:root{
 --bg:#11120f;--bg-soft:#171914;--panel:#1b1e18;--panel-2:#22261e;
 --line:rgba(216,215,203,.16);--line-bright:rgba(200,242,74,.5);
 --text:#f0f0e8;--muted:#aaaca0;--quiet:#777b70;--lime:#c8f24a;
 --lime-light:#ddff76;--ink:#16190f;--orange:#d98a4a;
 --radius:18px;--radius-sm:11px;--shadow:0 18px 45px rgba(0,0,0,.24);
 --container:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-2;background-image:linear-gradient(rgba(216,215,203,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(216,215,203,.028) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,black,transparent 78%)}
body:after{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;opacity:.16;background-image:radial-gradient(rgba(255,255,255,.4) .55px,transparent .55px);background-size:5px 5px}
a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 64px));margin:auto}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:rgba(17,18,15,.88);backdrop-filter:blur(12px)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.04em;font-size:16px;white-space:nowrap}
.brand-mark{width:25px;height:25px;border:1px solid var(--lime);border-radius:7px;position:relative;transform:rotate(45deg);flex:none}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--lime)}
.brand-mark:before{width:5px;height:5px;border-radius:50%;top:4px;left:4px}.brand-mark:after{height:1px;width:13px;right:2px;bottom:5px}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14px;color:var(--muted)}
.nav-links a{position:relative;padding:8px 0;transition:color .2s ease}.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime)}
.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:11px;min-height:46px;padding:0 17px;font-weight:750;font-size:14px;transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease}
.nav-cta,.button-primary{background:var(--lime);color:var(--ink)}.nav-cta:hover,.button-primary:hover{background:var(--lime-light);transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,242,74,.14)}
.button-secondary{background:rgba(255,255,255,.02);border-color:var(--line);color:var(--text)}.button-secondary:hover{border-color:var(--line-bright);background:rgba(200,242,74,.06);transform:translateY(-2px)}
.button:active,.nav-cta:active{transform:translateY(1px)}
a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.menu-toggle{display:none;border:1px solid var(--line);color:var(--text);background:transparent;border-radius:9px;width:43px;height:43px;font-size:19px}
.mobile-menu{display:none}
.page-hero{padding:58px 0 30px}
.breadcrumb{display:flex;align-items:center;gap:9px;color:var(--quiet);font-size:13px;margin-bottom:21px}.breadcrumb a:hover{color:var(--lime)}.breadcrumb i{font-style:normal;color:var(--orange)}
.hero-frame{position:relative;overflow:hidden;padding:47px 52px 42px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(125deg,#20251b 0%,#171914 58%,#20251a 100%)}
.hero-frame:before{content:"";position:absolute;right:-84px;top:-140px;width:410px;height:410px;border:1px solid rgba(200,242,74,.22);border-radius:50%;box-shadow:inset 0 0 0 43px rgba(200,242,74,.025)}
.hero-frame:after{content:"";position:absolute;inset:auto 0 0 42%;height:1px;background:linear-gradient(90deg,transparent,rgba(200,242,74,.5),transparent)}
.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;width:max-content;color:var(--lime);font-size:12px;letter-spacing:.1em;font-weight:800}.eyebrow:before{content:"02";color:var(--orange)}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:46px;align-items:end}
h1,h2,h3,p{margin-top:0}h1{max-width:760px;margin-bottom:18px;font-size:clamp(40px,5.2vw,70px);line-height:1.1;letter-spacing:-.065em}
.hero-copy{max-width:710px;margin-bottom:0;color:var(--muted);font-size:16px}
.hero-stat{padding:20px;border-left:1px solid var(--line);position:relative}.hero-stat:before{content:"INDEX / 02";font-size:11px;letter-spacing:.16em;color:var(--orange)}
.hero-stat strong{display:block;margin:13px 0 4px;font-size:34px;line-height:1;color:var(--lime);letter-spacing:-.06em}.hero-stat span{font-size:13px;color:var(--muted)}
.filter-band{display:flex;gap:10px;align-items:center;overflow:auto;padding:17px 0 3px;scrollbar-width:none}.filter-band::-webkit-scrollbar{display:none}
.filter-label{flex:none;color:var(--quiet);font-size:12px;font-weight:800;letter-spacing:.1em;margin-right:4px}.filter{flex:none;border:1px solid var(--line);background:rgba(255,255,255,.018);color:var(--muted);padding:7px 12px;border-radius:7px;font-size:13px;transition:.2s ease}.filter:hover,.filter.active{color:var(--text);border-color:var(--line-bright);background:rgba(200,242,74,.07)}.filter.active{color:var(--lime)}
.section{padding:78px 0}.index-layout{display:grid;grid-template-columns:235px minmax(0,1fr);gap:42px;align-items:start}
.index-side{position:sticky;top:102px;padding:23px 20px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(27,30,24,.78)}
.side-label{color:var(--orange);font-size:11px;letter-spacing:.13em;font-weight:800}.index-side h2{font-size:21px;line-height:1.3;margin:13px 0 18px}
.side-links{display:grid;gap:3px}.side-links a{padding:9px 0;border-bottom:1px solid rgba(216,215,203,.08);font-size:14px;color:var(--muted);transition:.2s ease}.side-links a:hover{padding-left:5px;color:var(--lime)}
.rule-note{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;line-height:1.7;color:var(--quiet)}.rule-note b{color:var(--muted)}
.content-top{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:20px}.section-kicker{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}.content-top h2{margin:8px 0 0;font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.045em}.content-top p{max-width:350px;margin:0;color:var(--muted);font-size:14px}
.coordinate-line{height:40px;margin-bottom:18px;border:1px solid var(--line);border-radius:var(--radius-sm);background:linear-gradient(90deg,transparent 4%,rgba(200,242,74,.34) 4.2%,transparent 4.4%,transparent 25%,rgba(216,215,203,.2) 25.2%,transparent 25.4%,transparent 62%,rgba(200,242,74,.34) 62.2%,transparent 62.4%);position:relative}.coordinate-line:after{content:"分区坐标 / 浏览顺序";position:absolute;top:8px;left:16px;font-size:11px;letter-spacing:.12em;color:var(--quiet)}
.feature-card,.stream-card,.short-card,.quote-block,.explore-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);position:relative;overflow:hidden}
.feature-card{min-height:305px;padding:33px;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;transition:.25s ease}.feature-card:hover,.stream-card:hover,.short-card:hover{border-color:rgba(200,242,74,.45);transform:translateY(-4px);box-shadow:var(--shadow)}
.card-type{font-size:11px;letter-spacing:.12em;font-weight:800;color:var(--orange)}.feature-card h3{margin:34px 0 12px;font-size:31px;line-height:1.18;letter-spacing:-.045em}.feature-card p,.stream-card p,.short-card p{color:var(--muted);font-size:14px;margin-bottom:20px}
.read-action{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:14px;font-weight:750}.read-action span{transition:transform .2s ease}.read-action:hover span{transform:translateX(5px)}
.thumb{min-height:220px;border:1px solid rgba(216,215,203,.12);border-radius:13px;background:linear-gradient(145deg,rgba(200,242,74,.12),transparent 45%),repeating-linear-gradient(90deg,transparent 0 29px,rgba(216,215,203,.08) 30px 31px),repeating-linear-gradient(0deg,transparent 0 29px,rgba(216,215,203,.08) 30px 31px);position:relative}.thumb:before,.thumb:after{content:"";position:absolute;border:1px solid rgba(200,242,74,.55);border-radius:50%}.thumb:before{width:92px;height:92px;left:25%;top:27%}.thumb:after{width:24px;height:24px;left:calc(25% + 34px);top:calc(27% + 34px);background:var(--lime);box-shadow:0 0 26px rgba(200,242,74,.35)}
.stream-list{display:grid;gap:14px;margin-top:15px}.stream-card{display:grid;grid-template-columns:88px minmax(0,1fr) auto;align-items:center;gap:20px;padding:22px;transition:.25s ease}.stream-no{font-size:24px;font-weight:800;letter-spacing:-.06em;color:var(--lime)}.stream-card h3{margin:0 0 5px;font-size:19px;line-height:1.3}.stream-card p{margin:0}.update{font-size:12px;color:var(--quiet);white-space:nowrap}
.short-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}.short-card{padding:23px;min-height:205px;transition:.25s ease}.short-card h3{font-size:20px;line-height:1.32;margin:28px 0 8px}
.quote-block{margin-top:14px;padding:24px 27px;background:#20231c;border-left:3px solid var(--lime)}.quote-block p{margin:0;color:var(--muted);font-size:15px}.quote-block b{color:var(--text)}
.section-divider{height:1px;background:var(--line);margin:18px 0 0}
.explore{padding:32px 0 100px}.explore-card{padding:35px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;background:linear-gradient(120deg,#20251b,#171914)}.explore-card h2{margin:8px 0;font-size:31px;line-height:1.2;letter-spacing:-.04em}.explore-card p{max-width:640px;margin:0;color:var(--muted);font-size:15px}.explore-actions{display:flex;gap:10px;flex-wrap:wrap}
.faq-section{padding:10px 0 82px}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.faq-grid h2{font-size:39px;line-height:1.2;letter-spacing:-.05em;margin:8px 0 14px}.faq-grid>div>p{color:var(--muted);font-size:15px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:20px 0;display:flex;justify-content:space-between;gap:20px;border:0;background:none;color:var(--text);font-weight:750;text-align:left;font-size:16px}.faq-symbol{color:var(--lime);font-size:24px;line-height:1}.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}.faq-answer>div{overflow:hidden}.faq-item.open .faq-answer{grid-template-rows:1fr}.faq-answer p{padding:0 34px 20px 0;margin:0;color:var(--muted);font-size:14px}
.site-footer{border-top:1px solid var(--line);padding:58px 0 20px;background:#12130f;position:relative}.site-footer:before{content:"";position:absolute;inset:0 0 auto;height:70px;opacity:.26;background:repeating-linear-gradient(90deg,transparent 0 62px,rgba(216,215,203,.13) 63px 64px)}
.footer-grid{position:relative;display:grid;grid-template-columns:1.5fr .7fr .7fr;gap:42px}.footer-brand p{max-width:390px;color:var(--muted);font-size:14px;margin:18px 0}.tag{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border:1px solid var(--line);border-radius:7px;color:var(--muted);font-size:12px}.footer-title{font-size:12px;color:var(--lime);font-weight:800;letter-spacing:.1em;margin:4px 0 14px}.footer-links{display:grid;gap:8px}.footer-links a{color:var(--muted);font-size:14px;transition:.2s ease}.footer-links a:hover{color:var(--text);transform:translateX(3px)}.copyright{position:relative;display:flex;justify-content:space-between;gap:20px;margin-top:47px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:var(--quiet)}
@media(max-width:1024px){.hero-grid{grid-template-columns:1fr}.hero-stat{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.index-layout{grid-template-columns:195px minmax(0,1fr);gap:26px}.feature-card{grid-template-columns:1fr}.thumb{min-height:150px}.faq-grid{gap:40px}}
@media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.nav{height:67px;gap:12px}.brand{font-size:14px}.nav-links,.nav-cta{display:none}.menu-toggle{display:block}.mobile-menu{position:fixed;z-index:25;inset:67px 0 auto;background:#171914;border-bottom:1px solid var(--line);padding:22px 16px 28px;transform:translateY(-120%);opacity:0;visibility:hidden;transition:.25s ease}.mobile-menu.show{transform:translateY(0);opacity:1;visibility:visible}.mobile-menu a{display:block;padding:13px 0;border-bottom:1px solid var(--line);font-size:20px;font-weight:750}.mobile-menu .nav-cta{display:flex;margin-top:20px;width:max-content}.page-hero{padding-top:35px}.hero-frame{padding:32px 25px}.section{padding:59px 0}.index-layout{display:block}.index-side{position:static;margin-bottom:22px;padding:17px}.side-links{display:flex;overflow:auto;gap:18px}.side-links a{white-space:nowrap;border:0;padding:5px 0}.rule-note{display:none}.content-top{display:block}.content-top p{margin-top:12px}.stream-card{grid-template-columns:50px 1fr}.stream-card .update{grid-column:2}.short-grid{grid-template-columns:1fr}.faq-grid{grid-template-columns:1fr}.explore-card{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){h1{font-size:38px}.hero-copy{font-size:15px}.hero-frame{padding:28px 20px}.filter-band{margin-right:-16px;padding-right:16px}.feature-card{padding:24px;min-height:0}.feature-card h3{font-size:27px;margin-top:26px}.thumb{min-height:125px}.stream-card{padding:19px 16px;gap:12px}.stream-card h3{font-size:17px}.short-card{min-height:0}.faq-grid h2{font-size:32px}.explore-card{padding:26px 22px}.explore-card h2{font-size:27px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.copyright{display:block}.copyright span+span{display:block;margin-top:4px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{
 --bg:#11120f;--bg-soft:#171914;--panel:#1b1e18;--panel-2:#22261e;
 --line:rgba(216,215,203,.16);--line-bright:rgba(200,242,74,.52);
 --text:#f0f0e8;--muted:#aaaca0;--quiet:#777b70;--lime:#c8f24a;
 --lime-light:#ddff76;--ink:#16190f;--orange:#d98a4a;
 --radius:18px;--radius-sm:11px;--shadow:0 18px 45px rgba(0,0,0,.24);
 --container:1220px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-width:320px;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background-image:linear-gradient(rgba(216,215,203,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(216,215,203,.028) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,black,transparent 82%)}
body:after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.16;background-image:radial-gradient(rgba(255,255,255,.4) .55px,transparent .55px);background-size:5px 5px}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 64px));margin:auto}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:rgba(17,18,15,.9);backdrop-filter:blur(12px)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.04em;font-size:16px;white-space:nowrap}
.brand-mark{width:25px;height:25px;border:1px solid var(--lime);border-radius:7px;position:relative;transform:rotate(45deg);flex:none}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--lime)}
.brand-mark:before{width:5px;height:5px;border-radius:50%;top:4px;left:4px}
.brand-mark:after{height:1px;width:13px;right:2px;bottom:5px}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14px;color:var(--muted)}
.nav-links a{position:relative;padding:8px 0;transition:color .2s ease}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime)}
.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 17px;border:1px solid transparent;border-radius:11px;font-size:14px;font-weight:750;transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease}
.nav-cta,.button-primary{color:var(--ink);background:var(--lime)}
.nav-cta:hover,.button-primary:hover{background:var(--lime-light);transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,242,74,.14)}
.button-secondary{color:var(--text);background:rgba(255,255,255,.02);border-color:var(--line)}
.button-secondary:hover{border-color:var(--line-bright);background:rgba(200,242,74,.06);transform:translateY(-2px)}
.button:active,.nav-cta:active{transform:translateY(1px)}
a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.menu-toggle{display:none;width:43px;height:43px;border:1px solid var(--line);border-radius:9px;color:var(--text);background:transparent;font-size:19px}
.mobile-menu{display:none}
.page-hero{position:relative;padding:86px 0 42px;overflow:hidden}
.page-hero:before{content:"02";position:absolute;right:4%;top:-62px;color:rgba(200,242,74,.055);font-weight:900;font-size:clamp(180px,26vw,370px);letter-spacing:-.12em;line-height:1;pointer-events:none}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--quiet);margin-bottom:32px}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb i{font-style:normal;color:var(--orange)}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 330px;align-items:end;gap:56px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
.eyebrow:before{content:"专题 / 02";color:var(--orange)}
h1,h2,h3,p{margin-top:0}
h1{max-width:860px;margin:17px 0 20px;font-size:clamp(42px,6vw,74px);line-height:1.12;letter-spacing:-.07em}
.hero-copy{max-width:720px;color:var(--muted);font-size:16px}
.hero-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:29px}
.tag{display:inline-flex;align-items:center;min-height:31px;padding:0 11px;border:1px solid var(--line);border-radius:7px;color:var(--muted);font-size:12px;background:rgba(255,255,255,.018);transition:.2s ease}
.tag:hover{border-color:var(--line-bright);color:var(--text)}
.hero-side{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-side:after{content:"";position:absolute;right:-50px;bottom:-70px;width:155px;height:155px;border:1px solid rgba(200,242,74,.23);transform:rotate(32deg)}
.side-label{color:var(--quiet);font-size:12px;letter-spacing:.1em}
.side-number{margin:5px 0 12px;color:var(--lime);font-size:46px;line-height:1;font-weight:850;letter-spacing:-.08em}
.hero-side p{position:relative;z-index:1;margin:0;color:var(--muted);font-size:13px}
.page-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:29px}
.section{padding:80px 0}
.read-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;justify-content:space-between;gap:70px}
.article{min-width:0}
.chapter{scroll-margin-top:100px;padding:0 0 70px;margin-bottom:69px;border-bottom:1px solid var(--line)}
.chapter:last-child{padding-bottom:0;margin-bottom:0;border:0}
.section-kicker{display:block;margin-bottom:10px;color:var(--lime);font-size:12px;letter-spacing:.13em;font-weight:800}
h2{margin-bottom:17px;font-size:clamp(29px,3.5vw,43px);line-height:1.2;letter-spacing:-.055em}
h3{font-size:20px;line-height:1.35;letter-spacing:-.03em}
.article p{color:var(--muted);font-size:16px}
.reading-note{margin:30px 0;padding:23px 25px;border-left:2px solid var(--lime);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:linear-gradient(90deg,rgba(200,242,74,.08),rgba(200,242,74,.015))}
.reading-note strong{display:block;margin-bottom:5px;font-size:15px}
.reading-note p{margin:0;font-size:14px}
.route-list{display:grid;gap:1px;margin-top:30px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--line)}
.route-item{display:grid;grid-template-columns:55px 1fr auto;align-items:center;gap:18px;padding:20px 22px;background:var(--panel);transition:.22s ease}
.route-item:hover{background:var(--panel-2)}
.route-no{color:var(--orange);font-size:13px;font-weight:800}
.route-item h3{margin:0 0 2px;font-size:17px}
.route-item p{margin:0;font-size:13px}
.route-arrow{color:var(--lime);font-size:22px;transition:transform .2s ease}
.route-item:hover .route-arrow{transform:translateX(4px)}
.info-band{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:1px;margin-top:33px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--line)}
.info-cell{padding:28px;background:var(--bg-soft)}
.info-cell h3{margin:0 0 9px}
.info-cell p{margin:0;font-size:14px}
.progress-list{display:grid;gap:19px;margin-top:26px}
.progress-head{display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:13px}
.progress-head span:last-child{color:var(--lime)}
.progress{height:5px;margin-top:7px;overflow:hidden;border-radius:5px;background:#2b2e27}
.progress i{display:block;height:100%;border-radius:5px;background:var(--lime)}
.update-list{position:relative;margin:30px 0 0;padding-left:26px;border-left:1px solid var(--line)}
.update-item{position:relative;padding:0 0 27px}
.update-item:last-child{padding-bottom:0}
.update-item:before{content:"";position:absolute;left:-31px;top:8px;width:9px;height:9px;border:2px solid var(--bg);border-radius:50%;background:var(--lime);box-shadow:0 0 0 1px var(--lime)}
.update-item time{display:block;margin-bottom:4px;color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.08em}
.update-item h3{margin:0 0 4px;font-size:17px}
.update-item p{margin:0;font-size:14px}
.cover-card{display:grid;grid-template-columns:.9fr 1.1fr;gap:0;margin-top:31px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.abstract-cover{position:relative;min-height:270px;overflow:hidden;background:#20241b}
.abstract-cover:before{content:"";position:absolute;inset:22px;border:1px solid rgba(200,242,74,.38);background:linear-gradient(135deg,transparent 48%,rgba(200,242,74,.14) 49%,transparent 51%),linear-gradient(45deg,transparent 48%,rgba(216,215,203,.12) 49%,transparent 51%);background-size:76px 76px}
.abstract-cover:after{content:"";position:absolute;left:50%;top:50%;width:98px;height:98px;border:1px solid var(--lime);border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 20px rgba(200,242,74,.04),0 0 0 42px rgba(200,242,74,.025)}
.cover-content{padding:31px}
.cover-content p{font-size:14px}
.check-list{display:grid;gap:10px;padding:0;margin:20px 0 0;list-style:none}
.check-list li{position:relative;padding-left:23px;color:var(--muted);font-size:14px}
.check-list li:before{content:"";position:absolute;left:0;top:.7em;width:9px;height:5px;border-left:2px solid var(--lime);border-bottom:2px solid var(--lime);transform:rotate(-45deg)}
.aside-nav{position:sticky;top:108px;align-self:start;padding:21px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(27,30,24,.88)}
.aside-title{margin-bottom:13px;color:var(--text);font-size:13px;font-weight:800;letter-spacing:.1em}
.aside-nav a{display:flex;align-items:center;gap:10px;padding:10px 0;border-top:1px solid rgba(216,215,203,.1);color:var(--muted);font-size:13px;transition:.2s ease}
.aside-nav a:first-of-type{border-top:0}
.aside-nav a:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--quiet);transition:.2s ease}
.aside-nav a:hover{padding-left:5px;color:var(--text)}
.aside-nav a:hover:before{background:var(--lime)}
.aside-rule{margin-top:18px;padding-top:17px;border-top:1px solid var(--line);color:var(--quiet);font-size:12px;line-height:1.7}
.path-band{padding:38px 0 0}
.path-panel{display:grid;grid-template-columns:180px 1fr;gap:32px;align-items:center;padding:28px 32px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.path-panel h2{margin:0;font-size:24px}
.path-nodes{display:flex;align-items:center;justify-content:space-between;gap:12px}
.path-node{flex:1;min-width:0;padding:12px 0;color:var(--muted);font-size:13px}
.path-node b{display:block;margin-bottom:3px;color:var(--text);font-size:14px}
.path-node.active b{color:var(--lime)}
.path-line{width:38px;height:1px;background:var(--line-bright);flex:none}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:80px;align-items:start}
.faq-copy p{max-width:380px;color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:25px;padding:21px 0;border:0;color:var(--text);background:none;text-align:left;font-weight:760;font-size:16px}
.faq-icon{position:relative;width:21px;height:21px;flex:none}
.faq-icon:before,.faq-icon:after{content:"";position:absolute;left:3px;top:10px;width:15px;height:1px;background:var(--lime);transition:transform .25s ease}
.faq-icon:after{transform:rotate(90deg)}
.faq-question[aria-expanded="true"] .faq-icon:after{transform:rotate(0)}
.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq-answer>div{overflow:hidden}
.faq-answer p{margin:0;padding:0 35px 20px 0;color:var(--muted);font-size:14px}
.faq-question[aria-expanded="true"]+.faq-answer{grid-template-rows:1fr}
.bottom-cta{padding:74px 0 102px}
.cta-panel{display:flex;align-items:center;justify-content:space-between;gap:35px;padding:42px;border:1px solid var(--line-bright);border-radius:var(--radius);background:linear-gradient(115deg,#20251a,#171914 70%);position:relative;overflow:hidden}
.cta-panel:after{content:"";position:absolute;right:-70px;top:-90px;width:250px;height:250px;border:1px solid rgba(200,242,74,.25);border-radius:50%;box-shadow:0 0 0 28px rgba(200,242,74,.025)}
.cta-panel h2{position:relative;z-index:1;max-width:600px;margin:0 0 8px;font-size:31px}
.cta-panel p{position:relative;z-index:1;max-width:600px;margin:0;color:var(--muted);font-size:14px}
.cta-actions{position:relative;z-index:1;display:flex;gap:10px;flex-wrap:wrap}
.site-footer{padding:55px 0 0;border-top:1px solid var(--line);background:#10110e;position:relative}
.site-footer:before{content:"";position:absolute;top:0;left:0;right:0;height:70px;opacity:.3;background-image:linear-gradient(90deg,transparent 0 48%,rgba(200,242,74,.17) 48% 49%,transparent 49% 100%);background-size:78px 1px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:60px;padding-bottom:43px}
.footer-brand p{max-width:370px;margin:15px 0;color:var(--muted);font-size:13px}
.footer-title{margin-bottom:13px;color:var(--text);font-size:13px;font-weight:800;letter-spacing:.08em}
.footer-links{display:grid;gap:9px}
.footer-links a{color:var(--muted);font-size:13px;transition:.2s ease}
.footer-links a:hover{color:var(--lime);transform:translateX(3px)}
.copyright{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid var(--line);color:var(--quiet);font-size:12px}
@media (max-width:1024px){
 .hero-grid,.read-layout,.faq-wrap{grid-template-columns:1fr;gap:35px}
 .hero-side{max-width:480px}
 .aside-nav{position:relative;top:auto;display:flex;align-items:center;gap:16px;overflow-x:auto;white-space:nowrap;padding:13px 17px}
 .aside-title,.aside-rule{display:none}
 .aside-nav a{border:0!important;padding:6px 0}
 .path-panel{grid-template-columns:1fr}
}
@media (max-width:768px){
 .container{width:min(var(--container),calc(100% - 32px))}
 .nav{height:68px;gap:14px}
 .brand{font-size:14px}
 .nav-links,.nav-cta{display:none}
 .menu-toggle{display:block}
 .mobile-menu{position:fixed;inset:68px 0 auto 0;z-index:25;padding:25px 16px 28px;border-bottom:1px solid var(--line);background:#171914;transform:translateY(-130%);opacity:0;visibility:hidden;transition:.25s ease}
 .mobile-menu.open{transform:translateY(0);opacity:1;visibility:visible}
 .mobile-menu a{display:block;padding:14px 2px;border-bottom:1px solid var(--line);font-size:20px;font-weight:750}
 .mobile-menu .button{width:100%;margin-top:20px}
 .page-hero{padding:55px 0 31px}
 h1{font-size:42px}
 .section{padding:58px 0}
 .chapter{padding-bottom:53px;margin-bottom:52px}
 .info-band,.cover-card{grid-template-columns:1fr}
 .abstract-cover{min-height:195px}
 .path-nodes{align-items:stretch;flex-direction:column;gap:4px}
 .path-line{width:1px;height:21px;margin-left:8px}
 .cta-panel{align-items:flex-start;flex-direction:column;padding:30px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:35px}
 .footer-brand{grid-column:span 2}
}
@media (max-width:520px){
 .brand-mark{width:22px;height:22px}
 .page-hero:before{right:-15px;top:-9px;font-size:170px}
 .breadcrumb{margin-bottom:21px}
 h1{font-size:36px}
 .hero-copy,.article p{font-size:15px}
 .route-item{grid-template-columns:35px 1fr auto;gap:10px;padding:18px 15px}
 .route-item p{font-size:12px}
 .cover-content,.info-cell{padding:23px}
 .faq-question{padding:18px 0;font-size:15px}
 .bottom-cta{padding:54px 0 70px}
 .cta-panel{padding:25px}
 .cta-panel h2{font-size:27px}
 .cta-actions,.cta-actions .button{width:100%}
 .footer-grid{grid-template-columns:1fr;gap:28px}
 .footer-brand{grid-column:auto}
 .copyright{align-items:flex-start;flex-direction:column;gap:4px}
}
@media (prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}
}