/* roulang page: index */
:root{
  --ink:#18201f;--deep:#111817;--deep2:#1b2523;--mint:#9ed9bd;--mint-strong:#61bd91;
  --paper:#f3f4ef;--paper2:#e8ebe4;--white:#fff;--muted:#68726e;--line:#d7ddd6;
  --radius:14px;--shadow:0 14px 34px rgba(24,32,31,.09);--max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(97,189,145,.65);outline-offset:3px}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(17,24,23,.96);border-bottom:1px solid rgba(158,217,189,.18);backdrop-filter:blur(12px)}
.navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:18px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand-mark{width:30px;height:30px;border:1px solid var(--mint);position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--mint)}
.brand-mark:before{width:8px;height:1px;left:-5px;top:7px}.brand-mark:after{height:8px;width:1px;right:7px;bottom:-5px}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{color:#bfcac4;padding:10px 16px;border:1px solid transparent;font-size:14px;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--mint);border-color:rgba(158,217,189,.35);background:rgba(158,217,189,.07)}
.nav-note{color:var(--mint);font-size:11px;letter-spacing:.12em;border-left:1px solid #40504b;padding-left:20px}
.menu-toggle{display:none;background:none;border:1px solid #49605a;color:#fff;padding:7px 10px}
.hero{min-height:590px;background:linear-gradient(90deg,rgba(10,18,17,.94) 12%,rgba(10,18,17,.72) 57%,rgba(10,18,17,.35)),url('/assets/images/cc518e6a8c3eee53.jpg') center/cover;display:flex;align-items:center;color:#fff}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(310px,.8fr);gap:70px;align-items:center}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.2em;color:var(--mint);text-transform:uppercase}
.hero h1{font-size:clamp(36px,5vw,66px);line-height:1.16;margin:18px 0 22px;max-width:760px;letter-spacing:-.04em}
.hero p{max-width:690px;color:#d2dbd5;font-size:17px;line-height:1.9;margin:0 0 28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:6px;border:1px solid var(--mint);font-weight:700;transition:.25s}
.btn-primary{background:var(--mint);color:#13201c}.btn-primary:hover{background:#c0ebd1;transform:translateY(-2px)}
.btn-outline{color:#e4f4eb;border-color:#7b9e8c}.btn-outline:hover{border-color:var(--mint);background:rgba(158,217,189,.1)}
.hero-panel{background:rgba(17,24,23,.78);border:1px solid rgba(158,217,189,.35);padding:24px;box-shadow:0 20px 45px rgba(0,0,0,.22)}
.panel-top{display:flex;justify-content:space-between;border-bottom:1px solid #3d5049;padding-bottom:16px;margin-bottom:18px;color:#b8c8bf;font-size:13px}
.panel-title{font-size:24px;color:#fff;margin:0 0 16px}.panel-line{display:flex;justify-content:space-between;padding:12px 0;border-top:1px solid #34443f;color:#c6d2cc;font-size:14px}.panel-line b{color:var(--mint)}
.section{padding:92px 0;border-bottom:1px solid var(--line)}
.section-dark{background:var(--deep);color:#edf4ef;border-color:#33413d}
.section-soft{background:var(--paper2)}
.section-head{max-width:720px;margin-bottom:38px}
.section-head h2{font-size:clamp(26px,3vw,40px);line-height:1.25;margin:10px 0 14px;letter-spacing:-.025em}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.section-dark .section-head p{color:#afbbb5}
.label{display:inline-block;padding:4px 9px;border:1px solid var(--line);color:#64716a;font-size:12px;line-height:1.4}
.section-dark .label{border-color:#40504a;color:var(--mint)}
.topic-strip{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.topic-item{background:var(--white);padding:27px 24px;min-height:170px;transition:.25s}
.topic-item:hover{background:#f7fbf7;transform:translateY(-3px)}
.topic-no{color:var(--mint-strong);font-size:12px;letter-spacing:.12em}
.topic-item h3{font-size:20px;margin:18px 0 8px}.topic-item p{color:var(--muted);font-size:14px;margin:0}
.scene-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:34px;align-items:start}
.scene-list{display:flex;flex-wrap:wrap;gap:10px}.scene-list a{padding:12px 16px;background:var(--white);border-left:3px solid var(--mint-strong);box-shadow:var(--shadow);font-size:14px;transition:.2s}.scene-list a:hover{color:#287452;transform:translateX(4px)}
.feature-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:42px;align-items:stretch}
.image-frame{min-height:320px;background:url('/assets/images/13bf674cc1101c34.jpg') center/cover;position:relative;overflow:hidden}
.image-frame:after{content:"精选内容";position:absolute;left:20px;bottom:18px;color:#fff;border:1px solid rgba(255,255,255,.6);padding:6px 12px;font-size:12px}
.content-box{background:var(--white);padding:30px;border:1px solid var(--line)}
.content-box h3{font-size:25px;margin:0 0 13px}.content-box p{color:var(--muted);margin:0 0 22px}
.content-list{list-style:none;padding:0;margin:0}.content-list li{display:flex;gap:14px;border-top:1px solid var(--line);padding:14px 0;font-size:14px}.content-list li:before{content:"↗";color:var(--mint-strong)}
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.matrix-card{padding:24px;background:var(--white);border:1px solid var(--line);min-height:150px}.matrix-card h3{margin:0 0 8px;font-size:19px}.matrix-card p{margin:0;color:var(--muted);font-size:14px}
.dark-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.dark-card{border:1px solid #3a4b45;padding:26px;background:#17211f}.dark-card h3{margin:0 0 8px;color:#fff}.dark-card p{margin:0;color:#b6c3bc;font-size:14px}.metric{font-size:30px;color:var(--mint);font-weight:800;margin-bottom:8px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);padding-top:28px;gap:22px}.step{position:relative}.step:before{content:"";width:9px;height:9px;background:var(--mint-strong);position:absolute;top:-33px;left:0}.step b{font-size:13px;color:var(--mint-strong)}.step h3{font-size:18px;margin:10px 0 5px}.step p{font-size:14px;color:var(--muted);margin:0}
.index-area{display:grid;grid-template-columns:1fr 1.4fr;gap:44px}.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}.tag-cloud span{padding:7px 12px;border-radius:3px;background:var(--deep2);color:#d5e8dc;font-size:13px}
.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font-weight:700;padding-right:20px}details p{color:var(--muted);font-size:14px;margin:12px 0 0;max-width:800px}
.news-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:20px}.news-main{min-height:260px;padding:28px;background:url('/assets/images/5cac26d7199fbac1.jpg') center/cover;display:flex;align-items:end;color:#fff;position:relative}.news-main:before{content:"";position:absolute;inset:0;background:linear-gradient(transparent,rgba(0,0,0,.85))}.news-main div{position:relative}.news-main h3{font-size:26px;margin:8px 0}.news-list{background:var(--white);padding:8px 24px}.news-list a{display:block;padding:16px 0;border-bottom:1px solid var(--line);font-weight:700}.news-list small{display:block;color:var(--muted);font-weight:400;margin-top:3px}
.extension{display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--deep2);color:#fff;padding:36px 42px}.extension h2{margin:0 0 7px;font-size:27px}.extension p{margin:0;color:#bbc9c1}
.footer{background:var(--deep);color:#b7c4bd;padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px;padding-bottom:35px;border-bottom:1px solid #33413d}.footer h3{color:#fff;margin:0 0 14px}.footer p{font-size:14px;margin:0;max-width:390px}.footer-links{display:flex;flex-direction:column;gap:7px;font-size:14px}.footer-links a:hover{color:var(--mint)}.copyright{padding-top:20px;font-size:12px;color:#81918a;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1024px){.hero-grid{gap:35px}.topic-strip{grid-template-columns:repeat(2,1fr)}.container{width:min(var(--max),calc(100% - 36px))}}
@media(max-width:768px){.navbar{height:68px}.nav-note{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:18px;right:18px;top:68px;background:var(--deep);padding:10px;border:1px solid #3b4b46;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.hero{min-height:auto;padding:82px 0}.hero-grid,.feature-layout,.scene-layout,.index-area,.news-layout{grid-template-columns:1fr}.hero-panel{margin-top:15px}.section{padding:65px 0}.matrix{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(2,1fr);row-gap:46px}.extension{align-items:flex-start;flex-direction:column;padding:28px}}
@media(max-width:520px){.container{width:calc(100% - 28px)}.brand{font-size:15px}.brand-mark{width:26px;height:26px}.hero h1{font-size:35px}.hero p{font-size:15px}.topic-strip,.matrix,.dark-grid,.timeline{grid-template-columns:1fr}.topic-item{min-height:130px}.section-head h2{font-size:28px}.copyright{flex-direction:column}.extension{padding:24px}.btn{width:100%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --ink:#18201f;--deep:#111817;--deep2:#1b2523;--mint:#9ed9bd;--mint-strong:#61bd91;
 --paper:#f3f4ef;--paper2:#e8ebe4;--white:#fff;--muted:#68726e;--line:#d7ddd6;
 --radius:14px;--shadow:0 14px 34px rgba(24,32,31,.09);--max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(97,189,145,.65);outline-offset:3px}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(17,24,23,.96);border-bottom:1px solid rgba(158,217,189,.18);backdrop-filter:blur(12px)}
.navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:18px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand-mark{width:30px;height:30px;border:1px solid var(--mint);position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--mint)}
.brand-mark:before{width:8px;height:1px;left:-5px;top:7px}
.brand-mark:after{height:8px;width:1px;right:7px;bottom:-5px}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{color:#bfcac4;padding:10px 16px;border:1px solid transparent;font-size:14px;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--mint);border-color:rgba(158,217,189,.35);background:rgba(158,217,189,.07)}
.menu-toggle{display:none;background:none;border:1px solid #49605a;color:#fff;padding:7px 10px;border-radius:5px;cursor:pointer}
.page-intro{background:linear-gradient(90deg,rgba(10,18,17,.95),rgba(10,18,17,.68)),url('/assets/images/13bf674cc1101c34.jpg') center/cover;color:#fff;padding:92px 0 96px}
.intro-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:70px;align-items:center}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.2em;color:var(--mint);text-transform:uppercase}
.page-intro h1{font-size:clamp(35px,5vw,62px);line-height:1.18;margin:17px 0 20px;letter-spacing:-.04em}
.page-intro p{max-width:700px;color:#d2dbd5;font-size:17px;margin:0}
.intro-panel{border:1px solid rgba(158,217,189,.35);background:rgba(17,24,23,.78);padding:25px}
.intro-panel strong{display:block;color:#fff;font-size:24px;line-height:1.35;margin:10px 0}
.intro-panel span{display:block;color:#b6c6bd;font-size:14px}
.panel-line{height:1px;background:#41504b;margin:19px 0}
.section{padding:82px 0;border-bottom:1px solid var(--line)}
.section-soft{background:var(--paper2)}
.section-dark{background:var(--deep);color:#edf4ef;border-color:#33413d}
.section-head{max-width:740px;margin-bottom:34px}
.section-head h2{font-size:clamp(26px,3vw,40px);line-height:1.25;margin:10px 0 14px;letter-spacing:-.025em}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.section-dark .section-head p{color:#afbbb5}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:6px;border:1px solid var(--mint);font-weight:700;transition:.25s;cursor:pointer}
.btn-primary{background:var(--mint);color:#13201c}
.btn-primary:hover{background:#c0ebd1;transform:translateY(-2px)}
.btn-outline{color:#e4f4eb;border-color:#7b9e8c}
.btn-outline:hover{border-color:var(--mint);background:rgba(158,217,189,.1)}
.feature-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:stretch}
.feature-image{min-height:330px;background:url('/assets/images/0b470239a021aa0f.jpg') center/cover;position:relative;overflow:hidden}
.feature-image:after{content:"精选主题";position:absolute;left:22px;bottom:20px;color:#fff;border-left:3px solid var(--mint);padding-left:12px;font-size:18px;font-weight:700}
.feature-copy{background:var(--white);padding:34px;border:1px solid var(--line)}
.feature-copy h3{font-size:28px;line-height:1.35;margin:0 0 13px}
.feature-copy p{color:var(--muted);margin:0 0 23px}
.meta-row{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}
.badge,.label{display:inline-flex;align-items:center;padding:5px 10px;border:1px solid var(--line);color:#4e6259;font-size:12px;border-radius:3px}
.badge{background:#eef6ef;border-color:#c7e2d0;color:#337557}
.list-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(250px,.55fr);gap:38px}
.article-list{list-style:none;padding:0;margin:0}
.article-list li{display:grid;grid-template-columns:126px 1fr;gap:22px;padding:22px 0;border-top:1px solid var(--line)}
.article-thumb{height:100px;background-position:center;background-size:cover}
.article-list h3{font-size:20px;line-height:1.4;margin:0 0 7px}
.article-list p{color:var(--muted);font-size:14px;margin:0}
.article-side{background:var(--deep);color:#fff;padding:27px;height:max-content}
.article-side h3{margin:0 0 16px;font-size:21px}
.article-side ul{list-style:none;padding:0;margin:0}
.article-side li{padding:11px 0;border-top:1px solid #3a4944;color:#c2d0c8;font-size:14px}
.filter-box{border:1px solid var(--line);background:var(--white);padding:27px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.filter-box h3{margin:0 0 5px;font-size:20px}
.filter-box p{margin:0;color:var(--muted);font-size:14px}
.tag-cloud{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:9px}
.tag-cloud a,.tag-cloud span{padding:8px 13px;border-radius:3px;background:var(--deep2);color:#d5e8dc;font-size:13px;transition:.2s}
.tag-cloud a:hover{background:var(--mint);color:var(--ink)}
.topic-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
.topic-panel{background:var(--white);border:1px solid var(--line);padding:28px}
.topic-panel.dark{background:#17211f;border-color:#3a4b45;color:#fff}
.topic-panel h3{font-size:22px;margin:0 0 10px}
.topic-panel p{color:var(--muted);font-size:14px;margin:0 0 17px}
.topic-panel.dark p{color:#b6c3bc}
.topic-links{display:flex;flex-wrap:wrap;gap:8px}
.topic-links a{padding:7px 11px;border:1px solid var(--line);font-size:13px}
.topic-panel.dark a{border-color:#496058;color:#d4e8db}
.faq{border-top:1px solid var(--line);max-width:850px}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:20px}
.faq summary:after{content:"+";color:var(--mint-strong);font-size:22px;line-height:1}
.faq details[open] summary:after{content:"−"}
.faq details p{color:var(--muted);font-size:14px;margin:12px 35px 0 0}
.cta-band{padding:62px 0;background:var(--deep2);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-inner h2{font-size:32px;line-height:1.3;margin:0 0 10px}
.cta-inner p{color:#b8c7bf;margin:0;max-width:650px}
.footer{background:var(--deep);color:#b7c4bd;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px;padding-bottom:35px;border-bottom:1px solid #33413d}
.footer h3{color:#fff;margin:0 0 14px}
.footer p{font-size:14px;margin:0;max-width:390px}
.footer-links{display:flex;flex-direction:column;gap:7px;font-size:14px}
.footer-links a:hover{color:var(--mint)}
.copyright{padding-top:20px;font-size:12px;color:#81918a;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1024px){
 .intro-grid{gap:35px}
 .list-layout{grid-template-columns:1fr}
 .article-side{display:none}
}
@media(max-width:768px){
 .container{width:min(var(--max),calc(100% - 36px))}
 .navbar{height:68px}
 .menu-toggle{display:block}
 .nav-links{display:none;position:absolute;left:18px;right:18px;top:68px;background:var(--deep);padding:10px;border:1px solid #3b4b46;flex-direction:column;align-items:stretch}
 .nav-links.open{display:flex}
 .nav-links a{padding:13px 15px}
 .intro-grid,.feature-layout,.topic-grid{grid-template-columns:1fr}
 .page-intro{padding:70px 0}
 .section{padding:62px 0}
 .filter-box{display:block}
 .tag-cloud{justify-content:flex-start;margin-top:18px}
 .cta-inner{display:block}
 .cta-inner .btn{margin-top:22px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:520px){
 .brand{font-size:15px}
 .brand-mark{width:27px;height:27px}
 .page-intro h1{font-size:34px}
 .page-intro p{font-size:15px}
 .article-list li{grid-template-columns:1fr;gap:13px}
 .article-thumb{height:160px}
 .feature-copy{padding:24px}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
 .copyright{display:block}
 .copyright span{display:block;margin-top:6px}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
}