/* roulang page: index */
:root{
 --ink:#202126;--deep:#17181c;--muted:#6d6e76;--paper:#f5f4f0;--white:#fff;
 --lime:#d9f45b;--lime-dark:#a9c72d;--plum:#76506f;--plum-soft:#eee5ec;
 --line:#dfded9;--radius:16px;--shadow:0 16px 45px rgba(25,25,28,.09);
 --container:1200px;--ease:all .22s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
img{max-width:100%;display:block}
button,input{font:inherit}
button{border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:82px;background:rgba(245,244,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;min-width:280px}
.brand-mark{width:40px;height:40px;background:var(--lime);color:var(--deep);display:grid;place-items:center;border-radius:11px;font-weight:900;font-size:17px;letter-spacing:-2px}
.brand-text{line-height:1.2;font-weight:800;font-size:14px}
.brand-text small{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:4px}
.main-nav{display:flex;align-items:center;gap:5px;flex:1}
.main-nav a{padding:9px 13px;border-radius:9px;color:#55565e;font-size:14px}
.main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--white)}
.main-nav a.active{font-weight:700;box-shadow:0 2px 0 var(--lime-dark)}
.header-action,.btn-primary{background:var(--lime);color:var(--deep);font-weight:800;border-radius:10px;padding:12px 19px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.header-action:hover,.btn-primary:hover{background:#e8ff79;transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--deep);color:var(--lime);width:42px;height:42px;border-radius:9px}
.hero{padding:84px 0 76px;background:var(--paper);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--plum);font-weight:800;margin-bottom:18px}
.hero h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.045em;max-width:680px;margin-bottom:24px}
.hero-lead{font-size:18px;color:var(--muted);max-width:600px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:32px}
.btn-secondary{border:1px solid var(--ink);padding:11px 19px;border-radius:10px;font-weight:700;background:transparent}
.btn-secondary:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
.hero-note{display:flex;align-items:center;gap:10px;margin-top:22px;color:var(--muted);font-size:13px}
.note-dot{width:8px;height:8px;background:var(--plum);border-radius:50%}
.portal-board{background:var(--deep);color:var(--white);border-radius:22px;padding:27px;box-shadow:var(--shadow);position:relative}
.portal-board:before{content:"";position:absolute;right:-22px;top:-22px;width:100px;height:100px;border:1px solid var(--plum);border-radius:50%}
.board-top{display:flex;justify-content:space-between;color:#a7a7ad;font-size:12px;margin-bottom:25px}
.board-title{font-size:25px;font-weight:800;line-height:1.35;margin-bottom:24px}
.board-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.board-item{border:1px solid #3a3b42;padding:15px;border-radius:11px;transition:var(--ease)}
.board-item:hover{border-color:var(--lime);background:#25262c}
.board-item b{display:block;color:var(--lime);font-size:12px;margin-bottom:6px}
.board-item span{font-size:14px}
.board-foot{margin-top:23px;padding-top:17px;border-top:1px solid #37383e;color:#a7a7ad;font-size:12px}
.section{padding:88px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
.section-title{font-size:34px;line-height:1.25;letter-spacing:-.03em}
.section-desc{color:var(--muted);max-width:510px}
.quick-strip{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0}
.quick-inner{display:flex;align-items:center;gap:22px}
.quick-label{font-size:13px;font-weight:800;white-space:nowrap}
.quick-links{display:flex;gap:9px;overflow:auto;width:100%}
.quick-link{border:1px solid var(--line);border-radius:9px;padding:11px 18px;white-space:nowrap;background:var(--paper);font-size:14px}
.quick-link:hover{border-color:var(--plum);color:var(--plum);background:var(--plum-soft)}
.news-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:24px}
.feature-news,.news-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.feature-news{padding:31px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between}
.news-tag,.badge{display:inline-flex;align-items:center;background:var(--plum-soft);color:var(--plum);border-radius:6px;padding:4px 9px;font-size:12px;font-weight:700}
.feature-news h3{font-size:27px;line-height:1.4;margin:18px 0 12px;max-width:600px}
.feature-news p{color:var(--muted);max-width:600px}
.read-link{font-weight:800;margin-top:25px;display:inline-flex;gap:7px}
.read-link:hover{color:var(--plum)}
.news-list{padding:8px 24px}
.news-row{display:grid;grid-template-columns:72px 1fr auto;gap:16px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.news-row:last-child{border-bottom:0}
.news-date{font-size:12px;color:var(--muted);line-height:1.4}
.news-date strong{display:block;font-size:20px;color:var(--ink)}
.news-row h4{font-size:16px;line-height:1.5;margin-bottom:4px}
.news-row p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.arrow{font-size:20px;color:var(--plum)}
.empty-state{padding:35px 15px;text-align:center;color:var(--muted)}
.empty-state strong{display:block;color:var(--ink);margin-bottom:8px}
.download-section{background:var(--deep);color:var(--white)}
.download-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:70px;align-items:center}
.download-section .section-kicker{color:var(--lime)}
.download-section .section-title{color:var(--white)}
.download-copy{color:#b8b8bd;margin:18px 0 27px;max-width:500px}
.device-area{min-height:350px;display:grid;place-items:center;position:relative}
.device{width:190px;height:330px;border:7px solid #414249;border-radius:28px;background:#292a30;padding:18px 13px;box-shadow:18px 18px 0 rgba(217,244,91,.85);transform:rotate(-5deg)}
.device-screen{height:100%;border-radius:15px;background:var(--paper);color:var(--ink);padding:17px 12px}
.screen-top{font-size:10px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:12px}
.screen-logo{margin:21px 0;font-size:25px;font-weight:900;letter-spacing:-2px}
.screen-line{height:9px;background:#deddd8;border-radius:4px;margin:9px 0}
.screen-line.short{width:60%}
.platforms{display:flex;gap:8px;margin-bottom:17px}
.platform{border:1px solid #4b4c52;border-radius:8px;padding:7px 12px;font-size:13px}
.platform.active{border-color:var(--lime);color:var(--lime);background:#292a30}
.download-meta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.meta-box{border:1px solid #3b3c43;border-radius:10px;padding:14px;font-size:13px;color:#b8b8bd}
.meta-box b{display:block;color:var(--white);margin-bottom:4px}
.lime-btn{background:var(--lime);color:var(--deep);font-weight:800;padding:13px 20px;border-radius:9px;display:inline-block}
.lime-btn:hover{background:#edff91;transform:translateY(-2px)}
.process{background:var(--white)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.step{padding:27px 24px 10px;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step-num{font-size:13px;color:var(--plum);font-weight:900;letter-spacing:.1em}
.step h3{font-size:18px;margin:17px 0 8px}
.step p{font-size:14px;color:var(--muted)}
.index-band{background:var(--plum-soft)}
.topic-grid{display:flex;flex-wrap:wrap;gap:12px}
.topic{background:var(--white);border:1px solid #ded2dc;border-radius:10px;padding:18px 21px;min-width:190px;flex:1}
.topic strong{display:block;margin-bottom:5px}
.topic span{font-size:13px;color:var(--muted)}
.faq-list{max-width:820px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;padding:21px 3px;font-weight:700;display:flex;justify-content:space-between}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:22px;color:var(--plum)}
.faq-item[open] summary:after{content:"−"}
.faq-answer{color:var(--muted);font-size:14px;padding:0 35px 22px 3px}
.cta{background:var(--lime);padding:47px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:30px;line-height:1.3}
.cta p{margin-top:7px;color:#4c531f}
.cta .btn-secondary{border-color:var(--deep)}
.cta .btn-secondary:hover{background:var(--deep)}
.site-footer{background:var(--deep);color:#d8d8da;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
.footer-brand{font-weight:800;color:var(--white);font-size:17px}
.footer-brand p{font-size:13px;color:#98999f;font-weight:400;line-height:1.8;margin-top:13px;max-width:290px}
.footer-col h4{color:var(--lime);font-size:13px;margin-bottom:15px}
.footer-col a{display:block;color:#a8a8ae;font-size:13px;margin:9px 0}
.footer-col a:hover{color:var(--white);padding-left:3px}
.footer-bottom{border-top:1px solid #34353b;padding-top:19px;color:#85868d;font-size:12px;display:flex;justify-content:space-between;gap:20px}
:focus-visible{outline:3px solid var(--plum);outline-offset:3px}
@media(max-width:1024px){
 .brand{min-width:235px}.header-inner{gap:12px}.main-nav a{padding:8px 8px;font-size:13px}
 .hero-grid,.download-grid{gap:35px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
}
@media(max-width:767px){
 .container{width:min(100% - 32px,600px)}.site-header{height:70px}.brand{min-width:0;flex:1}.brand-text{font-size:12px}.brand-text small{font-size:10px}.brand-mark{width:36px;height:36px}
 .main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--deep);padding:15px 16px;flex-direction:column;align-items:stretch;box-shadow:0 15px 30px #0002}
 .main-nav.open{display:flex}.main-nav a{color:#ddd;padding:13px 15px}.main-nav a.active{color:var(--deep);background:var(--lime)}
 .header-action{padding:9px 12px;font-size:12px}.menu-toggle{display:block}
 .hero{padding:54px 0 50px}.hero-grid,.news-layout,.download-grid{grid-template-columns:1fr}.hero h1{font-size:36px}.hero-lead{font-size:16px}
 .portal-board{padding:22px}.board-title{font-size:22px}.quick-inner{display:block}.quick-label{display:block;margin-bottom:12px}
 .section{padding:58px 0}.section-head{display:block;margin-bottom:25px}.section-title{font-size:28px}.section-desc{margin-top:10px}
 .feature-news{min-height:270px;padding:23px}.feature-news h3{font-size:22px}.news-list{padding:4px 17px}.news-row{grid-template-columns:58px 1fr 14px;gap:10px}.news-row p{display:none}
 .device-area{min-height:330px;order:-1}.download-grid{gap:10px}.download-section{padding-top:55px}
 .steps{grid-template-columns:1fr 1fr}.step{padding:20px 12px;border-bottom:1px solid var(--line)}.step:nth-child(2){border-right:0}
 .topic{min-width:140px;padding:14px}.cta-inner{display:block}.cta .btn-secondary{margin-top:20px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
}
@media(max-width:420px){.brand-text small{display:none}.header-action{display:none}.hero-actions a{width:100%}.board-nav{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{border-right:0}.footer-grid{grid-template-columns:1fr}}

/* roulang page: article */
:root{
 --ink:#202126;--deep:#17181c;--muted:#6d6e76;--paper:#f5f4f0;--white:#fff;
 --lime:#d9f45b;--lime-dark:#a9c72d;--plum:#76506f;--plum-soft:#eee5ec;
 --line:#dfded9;--radius:16px;--shadow:0 16px 45px rgba(25,25,28,.09);
 --container:1200px;--ease:all .22s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:hover{color:var(--plum)}
img{max-width:100%;display:block}
button,input{font:inherit}
button{border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:82px;background:rgba(245,244,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;min-width:280px}
.brand-mark{width:40px;height:40px;background:var(--lime);color:var(--deep);display:grid;place-items:center;border-radius:11px;font-weight:900;font-size:17px;letter-spacing:-2px}
.brand-text{line-height:1.2;font-weight:800;font-size:14px}
.brand-text small{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:4px}
.main-nav{display:flex;align-items:center;gap:5px;flex:1}
.main-nav a{padding:9px 13px;border-radius:9px;color:#55565e;font-size:14px}
.main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--white)}
.main-nav a.active{font-weight:700;box-shadow:0 2px 0 var(--lime-dark)}
.header-action,.btn-primary{background:var(--lime);color:var(--deep);font-weight:800;border-radius:10px;padding:12px 19px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.header-action:hover,.btn-primary:hover{background:#e8ff79;color:var(--deep);transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--deep);color:var(--lime);width:42px;height:42px;border-radius:9px}
.article-hero{padding:62px 0 52px;background:var(--paper);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;gap:9px;color:var(--muted);font-size:13px;margin-bottom:28px}
.breadcrumb a:hover{color:var(--plum)}
.breadcrumb span{color:#aaa}
.article-label{display:inline-flex;align-items:center;background:var(--plum-soft);color:var(--plum);border-radius:6px;padding:5px 10px;font-size:12px;font-weight:800;margin-bottom:18px}
.article-hero h1{font-size:clamp(34px,5vw,56px);line-height:1.22;letter-spacing:-.045em;max-width:900px;margin:0 0 22px}
.article-summary{max-width:800px;color:var(--muted);font-size:18px;line-height:1.9;margin:0 0 25px}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}
.article-main{padding:70px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 250px;gap:64px;align-items:start}
.article-content{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:42px 48px;box-shadow:var(--shadow);overflow:hidden}
.article-content h2{font-size:29px;line-height:1.35;margin:36px 0 17px}
.article-content h3{font-size:21px;line-height:1.45;margin:28px 0 13px}
.article-content h2:first-child{margin-top:0}
.article-content p{margin:0 0 20px;color:#44454c}
.article-content ul,.article-content ol{padding-left:24px;margin:0 0 23px;color:#44454c}
.article-content li{margin:8px 0}
.article-content blockquote{margin:28px 0;padding:20px 24px;border-left:4px solid var(--lime-dark);background:#f3f5df;color:#4d5427}
.article-content img{border-radius:12px;margin:25px auto}
.article-content table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
.article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.article-content th{background:var(--plum-soft);color:var(--plum)}
.article-content a{color:var(--plum);text-decoration:underline;text-underline-offset:3px}
.article-content hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-content code{background:#f0efeb;border-radius:5px;padding:2px 6px;font-size:.9em}
.article-side{position:sticky;top:108px}
.side-card{background:var(--deep);color:var(--white);border-radius:var(--radius);padding:24px;margin-bottom:16px}
.side-card h3{font-size:18px;margin:0 0 17px}
.side-card p{color:#b7b7bc;font-size:13px;line-height:1.8;margin:0 0 18px}
.side-links{display:grid;gap:4px}
.side-links a{border-top:1px solid #3a3b42;padding:11px 0;font-size:13px;color:#dedee1}
.side-links a:hover{color:var(--lime);padding-left:4px}
.side-note{background:var(--plum-soft);color:var(--plum);border-radius:12px;padding:17px;font-size:13px;line-height:1.8}
.empty-state{padding:55px 20px;text-align:center;border:1px dashed var(--line);border-radius:12px;background:#fafaf8}
.empty-state h2{font-size:25px;margin:0 0 10px}
.empty-state p{color:var(--muted);margin:0 0 20px}
.btn-secondary{border:1px solid var(--ink);padding:11px 19px;border-radius:10px;font-weight:700;background:transparent;display:inline-flex;align-items:center;justify-content:center}
.btn-secondary:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
.related-section{padding:0 0 82px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:26px}
.section-title{font-size:31px;line-height:1.25;letter-spacing:-.03em;margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px;min-height:150px;transition:var(--ease)}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c9c8c2}
.related-card b{display:block;font-size:17px;line-height:1.5;margin:13px 0 7px}
.related-card span{color:var(--muted);font-size:13px}
.badge{display:inline-flex;align-items:center;background:var(--plum-soft);color:var(--plum);border-radius:6px;padding:4px 9px;font-size:12px;font-weight:700}
.faq-section{padding:76px 0;background:#ecebe6}
.faq-list{max-width:820px;border-top:1px solid var(--line);margin-top:28px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;padding:21px 3px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:22px;color:var(--plum)}
.faq-item[open] summary:after{content:"−"}
.faq-answer{color:var(--muted);font-size:14px;padding:0 35px 22px 3px}
.cta{background:var(--lime);padding:47px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:30px;line-height:1.3;margin:0}
.cta p{margin:7px 0 0;color:#4c531f}
.site-footer{background:var(--deep);color:#d8d8da;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
.footer-brand{font-weight:800;color:var(--white);font-size:17px}
.footer-grid>div:first-child p{font-size:13px;color:#98999f;line-height:1.8;margin-top:13px;max-width:290px}
.footer-col{display:grid;align-content:start;gap:8px}
.footer-col h4{color:var(--white);font-size:14px;margin:0 0 9px}
.footer-col a{font-size:13px;color:#a9a9af}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #36373d;padding-top:22px;color:#85868d;font-size:12px}
:focus-visible{outline:3px solid var(--lime-dark);outline-offset:3px}
@media(max-width:1024px){
 .header-inner{gap:18px}.brand{min-width:245px}.main-nav a{padding:8px 8px}
 .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:30px}
 .article-content{padding:34px}
}
@media(max-width:767px){
 .container{width:min(var(--container),calc(100% - 32px))}
 .site-header{height:72px}.brand{min-width:0;flex:1}.brand-text{font-size:12px}.brand-text small{font-size:10px}
 .main-nav{display:none;position:absolute;top:72px;left:16px;right:16px;background:var(--deep);padding:14px;border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .main-nav.open{display:flex}.main-nav a{color:#ddd;padding:12px 14px}.main-nav a:hover,.main-nav a.active{background:#2b2c31;color:var(--lime)}
 .header-action{display:none}.menu-toggle{display:block}
 .article-hero{padding:43px 0 40px}.article-hero h1{font-size:34px}.article-summary{font-size:16px}
 .article-main{padding:42px 0 58px}.article-layout{display:flex;flex-direction:column;gap:28px}.article-content{padding:25px 20px}
 .article-content h2{font-size:25px}.article-side{position:static;order:-1;width:100%}
 .side-card{margin-bottom:0}.side-note{display:none}.related-section{padding-bottom:58px}.related-grid{grid-template-columns:1fr}
 .faq-section{padding:55px 0}.cta{padding:36px 0}.cta-inner{align-items:flex-start;flex-direction:column}.cta h2{font-size:26px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:6px}
}
@media(max-width:520px){
 .brand-mark{width:36px;height:36px;font-size:15px}.article-meta{gap:8px 14px}
 .article-content{border-radius:12px}.footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
}

/* roulang page: index */
:root{
  --ink:#202020;
  --deep:#171819;
  --paper:#f5f4ef;
  --white:#fff;
  --muted:#77736d;
  --line:#dedbd2;
  --lime:#d8f36a;
  --lime-dark:#b9d94b;
  --plum:#75536e;
  --plum-soft:#efe5eb;
  --orange:#e8784d;
  --radius:14px;
  --shadow:0 14px 34px rgba(27,25,22,.08);
  --ease:220ms ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(245,244,239,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.navbar{height:82px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:300px}
.brand-mark{
  width:42px;height:42px;display:grid;place-items:center;
  background:var(--lime);color:var(--deep);font-size:18px;font-weight:900;
  border-radius:11px;letter-spacing:-1px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:18px;font-weight:850;letter-spacing:-.5px}
.brand-sub{font-size:11px;color:var(--muted);margin-top:5px;letter-spacing:.2px}
.main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
.main-nav a{
  padding:9px 13px;color:#65625c;font-size:14px;font-weight:650;
  border-bottom:2px solid transparent;transition:var(--ease)
}
.main-nav a:hover,.main-nav a.active{color:var(--ink);border-color:var(--plum)}
.nav-action{margin-left:10px;white-space:nowrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 20px;border:1px solid transparent;
  border-radius:9px;font-size:14px;font-weight:800;transition:var(--ease)
}
.btn-primary{background:var(--lime);color:var(--deep)}
.btn-primary:hover{background:var(--lime-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(173,200,65,.25)}
.btn-dark{background:var(--deep);color:var(--white)}
.btn-dark:hover{background:#343536;transform:translateY(-2px)}
.btn-outline{border-color:#a9a59b;color:var(--ink);background:transparent}
.btn-outline:hover{border-color:var(--plum);color:var(--plum);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink)}
.hero{padding:78px 0 86px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.eyebrow,.section-kicker{
  display:inline-flex;align-items:center;gap:8px;color:var(--plum);
  font-size:12px;font-weight:850;letter-spacing:1.5px;text-transform:uppercase
}
.eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--orange);display:inline-block}
.hero h1{font-size:clamp(36px,4.5vw,58px);line-height:1.2;letter-spacing:-2px;margin:18px 0 22px;max-width:720px}
.hero-lead{font-size:18px;color:#65625d;line-height:1.9;max-width:630px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
.hero-note{display:flex;gap:18px;margin-top:28px;color:var(--muted);font-size:13px}
.hero-note span{padding-left:13px;border-left:1px solid var(--line)}
.route-board{
  position:relative;background:var(--deep);color:var(--white);
  padding:28px;border-radius:18px;box-shadow:var(--shadow);min-height:360px;
  overflow:hidden
}
.route-board:after{
  content:"C7";position:absolute;right:-12px;bottom:-54px;
  color:rgba(216,243,106,.09);font-size:190px;font-weight:900;line-height:1
}
.board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #3b3d3c;padding-bottom:18px}
.board-title{font-size:18px;font-weight:800}
.board-status{font-size:12px;color:var(--lime);display:flex;align-items:center;gap:7px}
.board-status:before{content:"";width:7px;height:7px;background:var(--lime);border-radius:50%}
.route-list{position:relative;z-index:1;margin-top:16px}
.route-item{display:flex;align-items:center;gap:15px;padding:18px 0;border-bottom:1px solid #343635;transition:var(--ease)}
.route-item:hover{padding-left:7px;background:rgba(255,255,255,.03)}
.route-no{width:32px;height:32px;display:grid;place-items:center;background:#303231;border-radius:8px;color:var(--lime);font-size:13px;font-weight:850}
.route-item strong{display:block;font-size:15px}
.route-item small{color:#9b9b95;font-size:12px}
.route-arrow{margin-left:auto;color:var(--lime);font-size:20px}
.section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
.section h2{font-size:clamp(28px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin-top:11px}
.section-intro{max-width:500px;color:var(--muted);font-size:14px}
.quick-nav{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0}
.quick-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.quick-link{display:flex;align-items:center;gap:14px;padding:10px 22px;border-right:1px solid var(--line);transition:var(--ease)}
.quick-link:first-child{padding-left:0}.quick-link:last-child{border-right:0}
.quick-link:hover{color:var(--plum);transform:translateY(-2px)}
.quick-icon{width:38px;height:38px;display:grid;place-items:center;background:var(--plum-soft);color:var(--plum);border-radius:10px;font-weight:900}
.quick-link strong{display:block;font-size:14px}.quick-link small{display:block;color:var(--muted);font-size:12px}
.news-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:26px}
.feature-news,.news-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.feature-news{padding:30px;display:flex;flex-direction:column;justify-content:space-between;min-height:330px}
.feature-top{display:flex;justify-content:space-between;align-items:center}
.tag{display:inline-flex;padding:5px 10px;background:var(--plum-soft);color:var(--plum);border-radius:5px;font-size:12px;font-weight:800}
.feature-news h3{font-size:27px;line-height:1.4;max-width:600px;margin:45px 0 18px}
.feature-news p{color:var(--muted);font-size:14px;max-width:590px}
.text-link{color:var(--plum);font-size:14px;font-weight:800;margin-top:24px;display:inline-flex;gap:8px}
.text-link:hover{text-decoration:underline}
.news-list{padding:10px 25px}
.news-row{display:grid;grid-template-columns:70px 1fr 24px;gap:14px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line);transition:var(--ease)}
.news-row:last-child{border-bottom:0}
.news-row:hover{padding-left:6px}
.news-date{font-size:12px;color:var(--muted);line-height:1.35}
.news-date b{display:block;font-size:21px;color:var(--ink)}
.news-copy strong{font-size:15px;display:block;line-height:1.5}
.news-copy small{display:block;color:var(--muted);font-size:12px;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-arrow{color:var(--plum);font-size:19px}
.empty-state{padding:50px 20px;text-align:center;color:var(--muted);font-size:14px}
.empty-state .btn{margin-top:18px}
.download-section{background:var(--deep);color:var(--white)}
.download-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:center}
.download-section .section-kicker{color:var(--lime)}
.download-section h2{margin-top:14px}
.download-copy{color:#b3b3ad;margin-top:18px;max-width:520px}
.device-stage{position:relative;min-height:390px;display:flex;justify-content:center;align-items:center}
.device{
  width:205px;height:365px;border:8px solid #444746;border-radius:30px;background:#e9f27a;
  box-shadow:24px 26px 0 rgba(255,255,255,.06);padding:19px 15px;color:var(--deep);position:relative;z-index:1
}
.device:before{content:"";display:block;width:55px;height:5px;background:#3a3b3a;border-radius:8px;margin:0 auto 25px}
.device-label{font-size:11px;font-weight:900;letter-spacing:1px}
.device h3{font-size:25px;line-height:1.2;margin:15px 0 35px}
.device-line{height:8px;background:rgba(32,32,32,.2);margin:13px 0;border-radius:5px}
.device-line.short{width:65%}
.download-panel{border-top:1px solid #424443;padding-top:8px}
.download-panel h3{font-size:22px;margin:14px 0}
.platforms{display:flex;gap:8px;margin:22px 0}
.platform{border:1px solid #555856;border-radius:7px;padding:7px 12px;color:#bcbdb7;font-size:12px}
.platform.selected{background:var(--lime);color:var(--deep);border-color:var(--lime);font-weight:800}
.download-meta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.meta-box{border:1px solid #3c3f3e;border-radius:9px;padding:13px;color:#aaa;font-size:12px}
.meta-box b{display:block;color:var(--white);font-size:14px;margin-top:4px}
.process{background:#ecebe5}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{position:relative;padding:25px 21px;background:var(--white);border:1px solid var(--line);border-radius:12px}
.step-no{font-size:13px;color:var(--orange);font-weight:900;letter-spacing:1px}
.step h3{font-size:18px;margin:18px 0 9px}
.step p{font-size:13px;color:var(--muted);line-height:1.7}
.index-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.index-strip a{padding:9px 15px;border:1px solid var(--line);border-radius:7px;background:var(--white);font-size:13px;color:#5c5953;transition:var(--ease)}
.index-strip a:hover{border-color:var(--plum);color:var(--plum)}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 4px;font-weight:750;display:flex;justify-content:space-between;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"＋";color:var(--plum);font-size:20px;font-weight:400}
.faq-item[open] summary:after{content:"−"}
.faq-answer{padding:0 34px 20px 4px;color:var(--muted);font-size:14px;line-height:1.8}
.cta{background:var(--lime);padding:42px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:30px;line-height:1.3;letter-spacing:-.7px}
.cta p{font-size:14px;margin-top:8px;color:#4b522d}
.cta-actions{display:flex;gap:10px;flex-shrink:0}
.cta .btn-dark:hover{background:#454944}
.site-footer{background:var(--deep);color:#f4f3ee;padding:54px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px;border-bottom:1px solid #3b3d3c}
.footer-brand p{color:#999b95;font-size:13px;max-width:300px;margin-top:15px;line-height:1.8}
.footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:13px;color:#b7b8b1;transition:var(--ease)}
.footer-links a:hover{color:var(--lime);padding-left:4px}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#888a84;font-size:12px}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
@media(max-width:1024px){
  .brand{min-width:250px}.main-nav{gap:0}.main-nav a{padding:9px 8px}
  .hero-grid,.download-grid{gap:35px}.faq-grid{gap:35px}
}
@media(max-width:767px){
  .container{width:min(100% - 32px,600px)}
  .navbar{height:70px}.brand{min-width:0;flex:1}.brand-main{font-size:15px}.brand-sub{font-size:10px}
  .brand-mark{width:37px;height:37px;font-size:16px}.nav-action{display:none}.menu-toggle{display:block}
  .main-nav{display:none;position:absolute;left:16px;right:16px;top:76px;padding:12px;background:var(--deep);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
  .main-nav.open{display:flex}.main-nav a{color:#d7d8d1;padding:12px 14px;border:0;border-radius:7px}.main-nav a.active,.main-nav a:hover{background:#303332;color:var(--lime)}
  .hero{padding:52px 0 58px}.hero-grid{grid-template-columns:1fr}.hero h1{font-size:35px;letter-spacing:-1.4px}.hero-lead{font-size:16px}
  .hero-note{flex-direction:column;gap:8px}.hero-note span{border-left:0;padding-left:0}
  .route-board{min-height:320px}.quick-track{grid-template-columns:1fr 1fr;gap:8px}.quick-link{border:0;padding:12px 0}.quick-link:first-child{padding-left:0}
  .section{padding:58px 0}.section-head{display:block;margin-bottom:24px}.section-intro{margin-top:14px}
  .news-layout,.download-grid,.faq-grid{grid-template-columns:1fr}.feature-news{min-height:290px}.feature-news h3{font-size:23px;margin:35px 0 14px}
  .download-section .section-head{margin-bottom:10px}.device-stage{min-height:330px;order:2}.download-panel{order:1}.process-grid{grid-template-columns:1fr 1fr}
  .step{padding:20px 16px}.step h3{font-size:16px}.cta-inner{display:block}.cta-actions{margin-top:23px;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
}
@media(max-width:520px){
  .hero-actions .btn{width:100%}.quick-track{grid-template-columns:1fr}.quick-link{border-bottom:1px solid var(--line);padding:12px 0}.quick-link:last-child{border-bottom:0}
  .news-row{grid-template-columns:58px 1fr 16px;gap:9px;padding:15px 0}.news-copy strong{font-size:14px}
  .download-meta{grid-template-columns:1fr}.process-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
  .cta h2{font-size:25px}.cta-actions .btn{flex:1;padding:0 12px}
}

/* roulang page: article */
:root{
      --ink:#202126;--deep:#17181c;--muted:#6d6e76;--paper:#f5f4f0;--white:#fff;
      --lime:#d9f45b;--lime-dark:#a9c72d;--plum:#76506f;--plum-soft:#eee5ec;
      --line:#dfded9;--orange:#e8784d;--radius:16px;
      --shadow:0 16px 45px rgba(25,25,28,.09);--ease:all .22s ease;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--plum)}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:82px;background:rgba(245,244,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:11px;min-width:280px}
    .brand-mark{width:40px;height:40px;background:var(--lime);color:var(--deep);display:grid;place-items:center;border-radius:11px;font-weight:900;font-size:17px;letter-spacing:-2px}
    .brand-text{line-height:1.2;font-weight:800;font-size:14px}
    .brand-main{display:block}
    .brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:9px 13px;border-radius:9px;color:#55565e;font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--white)}
    .main-nav a.active{font-weight:700;box-shadow:0 2px 0 var(--lime-dark)}
    .header-action,.btn-primary{background:var(--lime);color:var(--deep);font-weight:800;border-radius:10px;padding:12px 19px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .header-action:hover,.btn-primary:hover{background:#e8ff79;color:var(--deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--deep);color:var(--lime);width:42px;height:42px;border-radius:9px;font-size:20px}
    .page-intro{padding:58px 0 42px;background:var(--paper);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
    .breadcrumb a:hover{color:var(--plum)}
    .breadcrumb span{color:#aaa}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:70px;padding:65px 0 90px;align-items:start}
    .article-head{border-bottom:1px solid var(--line);padding-bottom:30px;margin-bottom:34px}
    .article-tag{display:inline-flex;background:var(--plum-soft);color:var(--plum);border-radius:6px;padding:5px 11px;font-size:12px;font-weight:800;margin-bottom:18px}
    .article-title{font-size:clamp(32px,4.4vw,52px);line-height:1.25;letter-spacing:-.04em;margin:0 0 20px;font-weight:800}
    .article-summary{font-size:17px;color:var(--muted);line-height:1.85;margin:0 0 20px}
    .article-meta{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}
    .article-meta strong{color:var(--ink);font-weight:700}
    .article-content{font-size:17px;line-height:1.95}
    .article-content h2{font-size:30px;line-height:1.35;margin:42px 0 16px}
    .article-content h3{font-size:22px;line-height:1.45;margin:30px 0 12px}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{padding-left:1.5em;margin:0 0 24px}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:28px 0;padding:20px 24px;border-left:4px solid var(--lime-dark);background:var(--white);color:#555;border-radius:0 10px 10px 0}
    .article-content img{border-radius:12px;margin:28px auto}
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;background:var(--white)}
    .article-content th,.article-content td{padding:12px 15px;border:1px solid var(--line);text-align:left}
    .article-content th{background:var(--plum-soft);color:var(--plum)}
    .article-content a{color:var(--plum);text-decoration:underline;text-underline-offset:3px}
    .article-content code{padding:2px 6px;border-radius:5px;background:#ecebe6;color:var(--plum);font-size:.9em}
    .empty-state{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:48px 30px;text-align:center;color:var(--muted)}
    .empty-state h2{margin:0 0 10px;color:var(--ink);font-size:24px}
    .empty-state a{display:inline-flex;margin-top:20px;background:var(--lime);color:var(--deep);font-weight:800;padding:11px 18px;border-radius:9px}
    .side-panel{position:sticky;top:112px}
    .side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:23px;margin-bottom:18px}
    .side-card h3{font-size:17px;margin:0 0 15px}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{border-top:1px solid var(--line);padding:12px 0;font-size:14px}
    .side-list li:first-child{border-top:0;padding-top:0}
    .side-list a{display:flex;justify-content:space-between;gap:10px}
    .side-list a:after{content:"→";color:var(--plum)}
    .download-card{background:var(--deep);color:var(--white);border-radius:var(--radius);padding:24px}
    .download-card h3{color:var(--lime);font-size:18px;margin:0 0 10px}
    .download-card p{color:#bdbdc2;font-size:13px;margin:0 0 18px}
    .lime-btn{display:inline-flex;background:var(--lime);color:var(--deep);font-weight:800;padding:11px 16px;border-radius:9px}
    .lime-btn:hover{background:#edff91;color:var(--deep);transform:translateY(-2px)}
    .article-end{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);margin-top:45px;padding-top:25px}
    .btn-secondary{border:1px solid var(--ink);padding:10px 17px;border-radius:10px;font-weight:700;background:transparent;display:inline-flex}
    .btn-secondary:hover{background:var(--ink);color:var(--white)}
    .cta{background:var(--lime);padding:48px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:30px;line-height:1.3;margin:0}
    .cta p{margin:7px 0 0;color:#4c531f}
    .cta .btn-secondary{border-color:var(--deep)}
    .cta .btn-secondary:hover{background:var(--deep)}
    .site-footer{background:var(--deep);color:#d8d8da;padding:55px 0 24px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#a9a9ae;font-size:13px;max-width:330px;margin:18px 0 0}
    .footer-title{color:var(--lime);font-weight:800;font-size:14px;margin-bottom:14px}
    .footer-links{display:grid;gap:9px;color:#b8b8bd;font-size:13px}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #36373c;margin-top:38px;padding-top:20px;color:#898a90;font-size:12px}
    :focus-visible{outline:3px solid var(--lime-dark);outline-offset:3px}
    @media(max-width:1024px){
      .header-inner{gap:15px}.brand{min-width:245px}.main-nav a{padding:8px 8px}
      .article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:35px}
    }
    @media(max-width:767px){
      .container{width:min(100% - 32px,var(--container))}
      .site-header{height:70px}.header-inner{justify-content:space-between}
      .brand{min-width:0}.brand-text{font-size:12px}.brand-sub{font-size:10px}.brand-mark{width:36px;height:36px}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:78px;padding:12px;background:var(--deep);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{color:#d8d8da;padding:12px 14px}.main-nav a:hover,.main-nav a.active{color:var(--deep);background:var(--lime)}
      .header-action{display:none}.menu-toggle{display:block}
      .page-intro{padding:38px 0 30px}.breadcrumb{margin-bottom:20px}
      .article-layout{display:block;padding:40px 0 58px}.article-title{font-size:34px}.article-summary{font-size:16px}
      .article-content{font-size:16px}.article-content h2{font-size:26px}.article-content h3{font-size:20px}
      .side-panel{position:static;margin-top:42px}.article-end{flex-wrap:wrap}
      .cta{padding:38px 0}.cta-inner{display:block}.cta h2{font-size:25px}.cta .btn-secondary{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
      .article-meta{gap:8px 14px}.article-content table{font-size:13px;display:block;overflow-x:auto}
    }

/* roulang page: category1 */
:root{
      --ink:#202126;
      --deep:#17181c;
      --muted:#6d6e76;
      --paper:#f5f4f0;
      --white:#fff;
      --lime:#d9f45b;
      --lime-dark:#a9c72d;
      --plum:#76506f;
      --plum-soft:#eee5ec;
      --orange:#e8784d;
      --line:#dfded9;
      --radius:16px;
      --shadow:0 16px 45px rgba(25,25,28,.09);
      --ease:all .22s ease;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:82px;
      position:sticky;
      top:0;
      z-index:30;
      background:rgba(245,244,240,.96);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(12px);
    }
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;min-width:280px}
    .brand-mark{
      width:40px;height:40px;display:grid;place-items:center;
      border-radius:11px;background:var(--lime);color:var(--deep);
      font-size:17px;font-weight:900;letter-spacing:-2px;
    }
    .brand-text{font-size:14px;font-weight:800;line-height:1.2}
    .brand-main{display:block}
    .brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{
      padding:9px 13px;border-radius:9px;color:#55565e;font-size:14px;
    }
    .main-nav a:hover,.main-nav a.active{
      color:var(--ink);background:var(--white);
    }
    .main-nav a.active{font-weight:700;box-shadow:0 2px 0 var(--lime-dark)}
    .header-action,.btn-primary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 19px;border-radius:10px;background:var(--lime);
      color:var(--deep);font-weight:800;
    }
    .header-action:hover,.btn-primary:hover{background:#e8ff79;transform:translateY(-2px)}
    .menu-toggle{display:none;width:42px;height:42px;border-radius:9px;background:var(--deep);color:var(--lime)}
    .page-hero{
      padding:72px 0 68px;
      background:var(--deep);
      color:var(--white);
      position:relative;
      overflow:hidden;
    }
    .page-hero:after{
      content:"01 / 最新资讯";
      position:absolute;
      right:5%;
      bottom:20px;
      color:rgba(217,244,91,.16);
      font-size:clamp(60px,10vw,150px);
      line-height:1;
      font-weight:900;
      letter-spacing:-.08em;
    }
    .breadcrumb{display:flex;gap:10px;align-items:center;color:#a8a8ad;font-size:13px;margin-bottom:27px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb span{color:#5d5e65}
    .hero-layout{display:grid;grid-template-columns:1fr 360px;gap:65px;align-items:end;position:relative;z-index:1}
    .eyebrow,.section-kicker{
      margin-bottom:15px;color:var(--plum);font-size:12px;
      font-weight:800;letter-spacing:.16em;
    }
    .page-hero .eyebrow{color:var(--lime)}
    h1,h2,h3,h4,p{margin-top:0}
    .page-hero h1{
      max-width:760px;margin-bottom:20px;
      font-size:clamp(38px,5.4vw,64px);
      line-height:1.18;letter-spacing:-.05em;
    }
    .hero-intro{max-width:700px;color:#c2c2c7;font-size:17px;line-height:1.9;margin-bottom:0}
    .hero-index{
      border-left:1px solid #45464d;padding-left:25px;
      color:#c6c6ca;font-size:14px;
    }
    .hero-index strong{display:block;color:var(--lime);font-size:30px;line-height:1.2;margin-bottom:8px}
    .section{padding:86px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-title{font-size:35px;line-height:1.25;letter-spacing:-.04em;margin-bottom:0}
    .section-desc{max-width:520px;color:var(--muted);margin-bottom:0}
    .news-feature{
      display:grid;grid-template-columns:1.25fr .75fr;
      min-height:285px;border:1px solid var(--line);border-radius:var(--radius);
      background:var(--white);overflow:hidden;box-shadow:var(--shadow);
    }
    .feature-copy{padding:34px 38px;display:flex;flex-direction:column;justify-content:space-between}
    .news-tag,.badge{
      display:inline-flex;align-items:center;width:max-content;
      padding:4px 9px;border-radius:6px;background:var(--plum-soft);
      color:var(--plum);font-size:12px;font-weight:700;
    }
    .feature-copy h2{font-size:29px;line-height:1.4;margin:20px 0 10px;max-width:650px}
    .feature-copy p{color:var(--muted);max-width:610px;margin-bottom:20px}
    .feature-side{
      background:var(--plum);color:var(--white);padding:34px;
      display:flex;flex-direction:column;justify-content:space-between;
    }
    .feature-side .side-number{font-size:70px;line-height:1;color:rgba(255,255,255,.18);font-weight:900}
    .feature-side h3{font-size:21px;line-height:1.45;margin-bottom:10px}
    .feature-side p{color:#e7dfe5;font-size:14px;margin-bottom:0}
    .text-link{font-weight:800;color:var(--plum);display:inline-flex;align-items:center;gap:8px}
    .text-link:hover{color:var(--orange);gap:13px}
    .timeline-wrap{display:grid;grid-template-columns:220px 1fr;gap:62px}
    .topic-panel{position:sticky;top:110px;height:max-content}
    .topic-panel h3{font-size:19px;margin-bottom:18px}
    .topic-list{display:flex;flex-direction:column;gap:8px}
    .topic-list a{
      padding:11px 14px;border-left:3px solid transparent;
      color:var(--muted);font-size:14px;background:rgba(255,255,255,.38);
    }
    .topic-list a:hover,.topic-list a.active{border-left-color:var(--lime-dark);color:var(--ink);background:var(--white);font-weight:700}
    .timeline{border-top:1px solid var(--line)}
    .timeline-item{
      display:grid;grid-template-columns:112px 1fr 30px;gap:25px;
      padding:25px 0;border-bottom:1px solid var(--line);align-items:start;
    }
    .timeline-date{color:var(--plum);font-size:13px;font-weight:800;padding-top:4px}
    .timeline-content h3{font-size:20px;line-height:1.45;margin-bottom:8px}
    .timeline-content h3 a:hover{color:var(--plum)}
    .timeline-content p{color:var(--muted);font-size:14px;margin-bottom:12px}
    .timeline-arrow{font-size:22px;color:var(--plum);transition:var(--ease)}
    .timeline-item:hover .timeline-arrow{transform:translateX(4px);color:var(--orange)}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px}
    .tag{
      padding:9px 14px;border:1px solid var(--line);border-radius:8px;
      color:var(--muted);font-size:13px;background:var(--white);
    }
    .tag:hover{border-color:var(--plum);color:var(--plum);transform:translateY(-2px)}
    .guide-band{background:#ebe9e2}
    .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .guide-card{padding:25px;background:var(--white);border:1px solid var(--line);border-radius:13px}
    .guide-card .num{display:block;color:var(--orange);font-size:13px;font-weight:900;margin-bottom:22px}
    .guide-card h3{font-size:19px;margin-bottom:8px}
    .guide-card p{color:var(--muted);font-size:14px;margin-bottom:0}
    .faq-list{max-width:850px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{
      list-style:none;cursor:pointer;padding:21px 3px;
      display:flex;justify-content:space-between;gap:20px;font-weight:700;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--plum);font-size:22px;line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 36px 22px 3px;color:var(--muted);font-size:14px}
    .cta{padding:48px 0;background:var(--lime)}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:31px;line-height:1.3;margin-bottom:7px}
    .cta p{color:#4c531f;margin-bottom:0}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;
      padding:11px 19px;border:1px solid var(--ink);border-radius:10px;
      background:transparent;color:var(--ink);font-weight:700;
    }
    .btn-secondary:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .site-footer{padding:55px 0 24px;background:var(--deep);color:#d8d8da}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand .brand{margin-bottom:19px}
    .footer-brand .brand-main{color:#fff}
    .footer-brand p{max-width:330px;color:#929399;font-size:13px}
    .footer-title{color:var(--lime);font-size:13px;font-weight:800;margin-bottom:15px}
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{color:#a9a9af;font-size:13px}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{
      display:flex;justify-content:space-between;gap:20px;
      padding-top:19px;border-top:1px solid #34353b;
      color:#77787e;font-size:12px;
    }
    :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    @media(max-width:1024px){
      .header-inner{gap:18px}.brand{min-width:250px}
      .main-nav a{padding:8px 8px;font-size:13px}
      .hero-layout{grid-template-columns:1fr 280px;gap:35px}
      .timeline-wrap{grid-template-columns:180px 1fr;gap:35px}
    }
    @media(max-width:767px){
      .container{width:min(100% - 32px,var(--container))}
      .site-header{height:70px}.header-inner{gap:10px;justify-content:space-between}
      .brand{min-width:0}.brand-mark{width:36px;height:36px}
      .brand-text{font-size:12px}.brand-sub{font-size:10px}
      .header-action{padding:9px 11px;font-size:12px}
      .menu-toggle{display:block}
      .main-nav{
        display:none;position:absolute;left:16px;right:16px;top:78px;
        padding:10px;flex-direction:column;align-items:stretch;
        background:var(--deep);border-radius:12px;box-shadow:var(--shadow);
      }
      .main-nav.open{display:flex}
      .main-nav a{color:#d7d7da;padding:12px 14px}
      .main-nav a:hover,.main-nav a.active{color:var(--deep);background:var(--lime)}
      .page-hero{padding:48px 0 53px}
      .page-hero:after{font-size:62px;right:-8px;bottom:15px}
      .hero-layout{display:block}.hero-index{margin-top:30px;padding:18px 0 0;border-left:0;border-top:1px solid #45464d}
      .page-hero h1{font-size:38px}
      .hero-intro{font-size:15px}
      .section{padding:58px 0}
      .section-head{display:block;margin-bottom:25px}.section-desc{margin-top:12px}
      .section-title{font-size:29px}
      .news-feature{display:block}.feature-copy{padding:25px}
      .feature-copy h2{font-size:23px}.feature-side{min-height:180px;padding:25px}
      .feature-side .side-number{font-size:48px}
      .timeline-wrap{display:block}.topic-panel{position:static;margin-bottom:30px}
      .topic-list{display:grid;grid-template-columns:1fr 1fr}
      .timeline-item{grid-template-columns:75px 1fr 18px;gap:12px;padding:20px 0}
      .timeline-content h3{font-size:17px}.timeline-content p{font-size:13px}
      .guide-grid{grid-template-columns:1fr}.guide-card{padding:20px}
      .cta-inner{display:block}.cta h2{font-size:26px}.cta-actions{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .header-action{display:none}.brand-text{max-width:210px}
      .topic-list{grid-template-columns:1fr}.timeline-item{grid-template-columns:1fr 20px}
      .timeline-date{grid-column:1/-1;padding-top:0}
      .timeline-arrow{grid-column:2;grid-row:2;margin-top:-28px}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category2 */
:root{--ink:#202126;--deep:#17181c;--muted:#6d6e76;--paper:#f5f4f0;--white:#fff;--lime:#d9f45b;--lime-dark:#a9c72d;--plum:#76506f;--plum-soft:#eee5ec;--line:#dfded9;--orange:#e8784d;--radius:16px;--shadow:0 16px 45px rgba(25,25,28,.09);--ease:all .22s ease;--container:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
img{display:block;max-width:100%}
button{border:0;cursor:pointer;font:inherit}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:82px;background:rgba(245,244,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;min-width:280px}
.brand-mark{width:40px;height:40px;background:var(--lime);color:var(--deep);display:grid;place-items:center;border-radius:11px;font-weight:900;font-size:17px;letter-spacing:-2px}
.brand-text{line-height:1.2;font-weight:800;font-size:14px}
.brand-main{display:block}
.brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:4px}
.main-nav{display:flex;align-items:center;gap:5px;flex:1}
.main-nav a{padding:9px 13px;border-radius:9px;color:#55565e;font-size:14px}
.main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--white)}
.main-nav a.active{font-weight:700;box-shadow:0 2px 0 var(--lime-dark)}
.header-action,.btn-primary{background:var(--lime);color:var(--deep);font-weight:800;border-radius:10px;padding:12px 19px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.header-action:hover,.btn-primary:hover{background:#e8ff79;transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--deep);color:var(--lime);width:42px;height:42px;border-radius:9px}
.page-hero{padding:70px 0 62px;background:var(--deep);color:var(--white);position:relative;overflow:hidden}
.page-hero:after{content:"02";position:absolute;right:7%;bottom:-35px;font-size:180px;line-height:1;font-weight:900;color:rgba(217,244,91,.07);letter-spacing:-15px}
.breadcrumb{display:flex;gap:10px;align-items:center;color:#aaaab0;font-size:13px;margin-bottom:27px;position:relative;z-index:1}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb span:last-child{color:var(--lime)}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.16em;color:var(--plum);font-weight:800;margin-bottom:16px}
.page-hero .eyebrow{color:var(--lime)}
.page-hero h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.045em;max-width:760px;margin:0 0 20px;position:relative;z-index:1}
.page-hero p{color:#c6c6ca;max-width:680px;font-size:17px;margin:0;position:relative;z-index:1}
.section{padding:86px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:35px}
.section-title{font-size:34px;line-height:1.25;letter-spacing:-.03em;margin:0}
.section-desc{color:var(--muted);max-width:550px;margin:0}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.path-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:25px 22px;min-height:225px;display:flex;flex-direction:column;transition:var(--ease)}
.path-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--lime-dark)}
.path-number{font-size:13px;font-weight:900;color:var(--plum);letter-spacing:.12em;margin-bottom:26px}
.path-icon{width:42px;height:42px;border-radius:10px;background:var(--plum-soft);color:var(--plum);display:grid;place-items:center;font-weight:900;font-size:18px;margin-bottom:17px}
.path-card h3{font-size:20px;line-height:1.35;margin:0 0 9px}
.path-card p{font-size:14px;color:var(--muted);margin:0 0 19px}
.path-link{margin-top:auto;color:var(--plum);font-weight:800;font-size:14px}
.path-link:after{content:"  →";transition:var(--ease)}
.path-link:hover{color:var(--ink)}
.path-link:hover:after{padding-left:4px}
.route-section{background:var(--white)}
.route-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;align-items:start}
.route-intro{border-left:4px solid var(--lime);padding:6px 0 6px 24px}
.route-intro h2{font-size:31px;line-height:1.35;margin:0 0 15px}
.route-intro p{color:var(--muted);margin:0}
.route-list{border-top:1px solid var(--line)}
.route-item{display:grid;grid-template-columns:54px 1fr auto;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
.route-step{width:38px;height:38px;border-radius:50%;background:var(--deep);color:var(--lime);display:grid;place-items:center;font-weight:900}
.route-item h3{font-size:18px;margin:0 0 4px}
.route-item p{font-size:14px;color:var(--muted);margin:0}
.route-arrow{font-size:22px;color:var(--plum)}
.info-band{padding:25px 28px;background:var(--plum-soft);border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:24px;margin-top:34px}
.info-band strong{display:block;font-size:18px;margin-bottom:4px}
.info-band span{color:#665b62;font-size:14px}
.btn-secondary{border:1px solid var(--ink);padding:11px 19px;border-radius:10px;font-weight:700;background:transparent;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}
.btn-secondary:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
.index-section{background:var(--paper)}
.index-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.index-card{border:1px solid var(--line);border-radius:var(--radius);padding:27px;background:var(--white)}
.index-card.dark{background:var(--deep);color:var(--white);border-color:var(--deep)}
.index-card h3{font-size:22px;margin:0 0 12px}
.index-card p{color:var(--muted);font-size:14px;margin:0 0 18px}
.index-card.dark p{color:#bcbcc1}
.tag-list{display:flex;flex-wrap:wrap;gap:9px}
.tag{display:inline-flex;padding:7px 11px;border-radius:7px;background:var(--plum-soft);color:var(--plum);font-size:13px;font-weight:700}
.dark .tag{background:#303136;color:var(--lime)}
.faq-list{max-width:860px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;padding:21px 3px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:22px;color:var(--plum);line-height:1}
.faq-item[open] summary:after{content:"−"}
.faq-answer{color:var(--muted);font-size:14px;padding:0 35px 22px 3px}
.cta{background:var(--lime);padding:47px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:30px;line-height:1.3;margin:0}
.cta p{margin:7px 0 0;color:#4c531f}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.cta .btn-secondary{border-color:var(--deep)}
.cta .btn-secondary:hover{background:var(--deep)}
.site-footer{background:var(--deep);color:#d8d8da;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
.footer-brand .brand{min-width:0;margin-bottom:17px}
.footer-brand .brand-sub{color:#a7a7ac}
.footer-brand p{color:#a7a7ac;font-size:14px;max-width:330px;margin:0}
.footer-title{color:var(--lime);font-size:14px;font-weight:800;margin:7px 0 15px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#b5b5ba;font-size:14px}
.footer-links a:hover{color:var(--lime);padding-left:3px}
.footer-bottom{border-top:1px solid #36373d;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#898a91;font-size:12px}
@media(max-width:1024px){.header-inner{gap:15px}.brand{min-width:245px}.main-nav a{padding:8px 8px}.path-grid{grid-template-columns:repeat(2,1fr)}.route-layout{gap:40px}}
@media(max-width:767px){.container{width:min(100% - 32px,var(--container))}.site-header{height:72px}.header-inner{justify-content:space-between}.brand{min-width:0}.brand-text{font-size:13px}.brand-sub{font-size:10px}.header-action{padding:10px 12px;font-size:13px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--deep);padding:14px 16px;flex-direction:column;align-items:stretch;gap:3px;box-shadow:0 14px 25px rgba(0,0,0,.18)}.main-nav.open{display:flex}.main-nav a{color:#d7d7da;padding:12px 14px}.main-nav a:hover,.main-nav a.active{color:var(--deep);background:var(--lime)}.page-hero{padding:48px 0 50px}.page-hero h1{font-size:36px}.page-hero p{font-size:15px}.section{padding:58px 0}.section-head{display:block;margin-bottom:25px}.section-title{font-size:29px;margin-bottom:12px}.path-grid,.index-grid{grid-template-columns:1fr}.path-card{min-height:190px}.route-layout{grid-template-columns:1fr;gap:32px}.route-item{grid-template-columns:42px 1fr auto;gap:13px}.route-item h3{font-size:16px}.route-item p{font-size:13px}.info-band{display:block;padding:21px}.info-band .btn-secondary{margin-top:16px;width:100%}.cta-inner{display:block}.cta h2{font-size:26px}.cta-actions{margin-top:22px}.cta-actions a{width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
@media(max-width:420px){.brand-mark{width:36px;height:36px}.brand-main{font-size:12px}.header-action{font-size:12px;padding:9px}.page-hero h1{font-size:32px}.footer-grid{grid-template-columns:1fr}}

/* roulang page: category3 */
:root{
      --ink:#202126;--deep:#17181c;--muted:#6d6e76;--paper:#f5f4f0;--white:#fff;
      --lime:#d9f45b;--lime-dark:#a9c72d;--plum:#76506f;--plum-soft:#eee5ec;
      --orange:#e8784d;--line:#dfded9;--radius:16px;--shadow:0 16px 45px rgba(25,25,28,.09);
      --container:1200px;--ease:all .22s ease
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:82px;background:rgba(245,244,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;min-width:280px}
    .brand-mark{width:40px;height:40px;background:var(--lime);color:var(--deep);display:grid;place-items:center;border-radius:11px;font-weight:900;font-size:17px;letter-spacing:-2px}
    .brand-text{line-height:1.2;font-weight:800;font-size:14px}
    .brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:9px 13px;border-radius:9px;color:#55565e;font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--white)}
    .main-nav a.active{font-weight:700;box-shadow:0 2px 0 var(--lime-dark)}
    .header-action,.btn-primary{background:var(--lime);color:var(--deep);font-weight:800;border-radius:10px;padding:12px 19px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .header-action:hover,.btn-primary:hover{background:#e8ff79;transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--deep);color:var(--lime);width:42px;height:42px;border-radius:9px}
    .hero{padding:70px 0 64px;background:var(--paper);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:32px}
    .breadcrumb a:hover{color:var(--plum)}
    .breadcrumb span{color:#aaa}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.16em;color:var(--plum);font-weight:800;margin-bottom:16px}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.045em;margin:0 0 22px;font-weight:800}
    .hero-lead{font-size:18px;color:var(--muted);max-width:620px;line-height:1.9;margin:0}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}
    .btn-secondary{border:1px solid var(--ink);padding:11px 19px;border-radius:10px;font-weight:700;background:transparent;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
    .hero-note{display:flex;gap:9px;margin-top:20px;color:var(--muted);font-size:13px}
    .download-card{background:var(--deep);color:var(--white);border-radius:20px;padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .download-card:before{content:"";position:absolute;width:180px;height:180px;border:1px solid #414249;border-radius:50%;right:-55px;top:-55px}
    .download-card h2{font-size:25px;line-height:1.35;margin:0 0 22px;position:relative}
    .download-card p{color:#bdbdc2;font-size:14px;margin:0 0 20px}
    .device-row{display:flex;align-items:center;gap:18px;padding:20px 0;border-top:1px solid #3a3b42;border-bottom:1px solid #3a3b42}
    .device{width:82px;height:142px;border:5px solid #55565d;border-radius:17px;padding:8px;position:relative;background:#24252a}
    .device:before{content:"";display:block;width:22px;height:4px;background:#55565d;border-radius:5px;margin:0 auto 12px}
    .device-screen{height:92px;border-radius:7px;background:var(--lime);display:grid;place-items:center;color:var(--deep);font-size:20px;font-weight:900}
    .device-copy b{display:block;color:var(--lime);font-size:13px;margin-bottom:5px}
    .device-copy span{font-size:13px;color:#c1c1c5}
    .section{padding:82px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:32px}
    .section-title{font-size:34px;line-height:1.25;letter-spacing:-.03em;margin:0}
    .section-desc{color:var(--muted);max-width:520px;margin:0}
    .path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .path-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-height:180px;transition:var(--ease)}
    .path-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c9c7bd}
    .path-number{color:var(--plum);font-size:13px;font-weight:800;letter-spacing:.08em}
    .path-card h3{font-size:19px;margin:24px 0 8px}
    .path-card p{color:var(--muted);font-size:14px;margin:0}
    .app-section{background:var(--deep);color:var(--white)}
    .app-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
    .app-section .section-kicker{color:var(--lime)}
    .app-section .section-title{color:var(--white);margin-bottom:16px}
    .app-section .section-desc{color:#b8b8bd}
    .platforms{display:flex;gap:9px;margin:25px 0 18px}
    .platform{border:1px solid #4b4c52;border-radius:8px;padding:8px 13px;font-size:13px;color:#c8c8cb}
    .platform.active{border-color:var(--lime);color:var(--lime);background:#292a30}
    .lime-btn{background:var(--lime);color:var(--deep);font-weight:800;padding:13px 20px;border-radius:9px;display:inline-flex}
    .lime-btn:hover{background:#edff91;transform:translateY(-2px)}
    .download-meta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
    .meta-box{border:1px solid #3b3c43;border-radius:10px;padding:14px;font-size:13px;color:#b8b8bd}
    .meta-box b{display:block;color:var(--white);margin-bottom:4px}
    .qr-panel{background:#24252a;border:1px solid #3d3e45;border-radius:16px;padding:28px;display:flex;align-items:center;gap:25px}
    .qr-box{width:142px;height:142px;background:#f4f3ed;display:grid;place-items:center;color:var(--deep);font-size:12px;text-align:center;padding:18px;flex:none}
    .qr-panel h3{font-size:20px;margin:0 0 8px}.qr-panel p{color:#b8b8bd;font-size:14px;margin:0}
    .notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .notice{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:25px}
    .notice strong{display:flex;align-items:center;gap:10px;font-size:18px;margin-bottom:10px}
    .notice strong:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--orange)}
    .notice p{color:var(--muted);font-size:14px;margin:0}
    .faq-list{max-width:850px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{cursor:pointer;list-style:none;padding:21px 3px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:22px;color:var(--plum)}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{color:var(--muted);font-size:14px;padding:0 35px 22px 3px}
    .cta{background:var(--lime);padding:47px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:30px;line-height:1.3;margin:0}
    .cta p{margin:7px 0 0;color:#4c531f}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .site-footer{background:var(--deep);color:#d8d8da;padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#9d9da4;font-size:14px;max-width:310px;margin-top:18px}
    .footer-title{font-weight:800;color:var(--white);margin-bottom:14px}
    .footer-links{display:grid;gap:8px;color:#a9a9b0;font-size:14px}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #36373d;margin-top:42px;padding-top:19px;color:#85868d;font-size:12px}
    :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    @media(max-width:1024px){
      .header-inner{gap:16px}.brand{min-width:245px}.main-nav a{padding:8px 8px;font-size:13px}
      .hero-grid,.app-grid{gap:35px}.path-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:767px){
      .container{width:min(100% - 32px,var(--container))}
      .site-header{height:70px}.header-inner{gap:12px}.brand{min-width:0;flex:1}.brand-mark{width:36px;height:36px}.brand-text{font-size:12px}.brand-sub{font-size:10px}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:78px;background:var(--white);border:1px solid var(--line);border-radius:13px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{padding:12px 13px}.header-action{padding:10px 12px;font-size:12px}.menu-toggle{display:block}
      .hero{padding:43px 0 50px}.breadcrumb{margin-bottom:25px}.hero-grid,.app-grid{grid-template-columns:1fr}.hero h1{font-size:36px}.hero-lead{font-size:16px}.download-card{padding:22px}
      .section{padding:58px 0}.section-head{display:block}.section-title{font-size:29px;margin-bottom:12px}.path-grid,.notice-grid{grid-template-columns:1fr}.path-card{min-height:auto}
      .qr-panel{align-items:flex-start;flex-direction:column}.download-meta{grid-template-columns:1fr}.cta{padding:38px 0}.cta-inner{display:block}.cta h2{font-size:26px}.cta-actions{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){.hero-actions a,.cta-actions a{width:100%}.device-row{align-items:flex-start}.footer-grid{grid-template-columns:1fr}}

/* roulang page: category4 */
:root{
 --ink:#202126;--deep:#17181c;--muted:#6d6e76;--paper:#f5f4f0;--white:#fff;
 --lime:#d9f45b;--lime-dark:#a9c72d;--plum:#76506f;--plum-soft:#eee5ec;
 --line:#dfded9;--orange:#e8784d;--radius:16px;--shadow:0 16px 45px rgba(25,25,28,.09);
 --container:1200px;--ease:all .22s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:focus-visible,summary:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
img{max-width:100%;display:block}
button{border:0;cursor:pointer;font:inherit}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:82px;background:rgba(245,244,240,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;min-width:280px}
.brand-mark{width:40px;height:40px;background:var(--lime);color:var(--deep);display:grid;place-items:center;border-radius:11px;font-weight:900;font-size:17px;letter-spacing:-2px}
.brand-text{line-height:1.2;font-weight:800;font-size:14px}
.brand-main{display:block}
.brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:4px}
.main-nav{display:flex;align-items:center;gap:5px;flex:1}
.main-nav a{padding:9px 13px;border-radius:9px;color:#55565e;font-size:14px}
.main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--white)}
.main-nav a.active{font-weight:700;box-shadow:0 2px 0 var(--lime-dark)}
.header-action,.btn-primary{background:var(--lime);color:var(--deep);font-weight:800;border-radius:10px;padding:12px 19px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.header-action:hover,.btn-primary:hover{background:#e8ff79;transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--deep);color:var(--lime);width:42px;height:42px;border-radius:9px}
.hero-inner{padding:38px 0 72px}
.breadcrumb{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:42px}
.breadcrumb a:hover{color:var(--plum)}
.breadcrumb span{color:#aaa}
.guide-hero{display:grid;grid-template-columns:1fr 360px;gap:75px;align-items:end}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.14em;color:var(--plum);font-weight:800;margin:0 0 16px}
.hero h1{font-size:clamp(38px,5vw,60px);line-height:1.17;letter-spacing:-.05em;margin:0 0 22px;max-width:760px}
.hero-lead{font-size:18px;color:var(--muted);max-width:700px;line-height:1.9;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn-secondary{border:1px solid var(--ink);padding:11px 19px;border-radius:10px;font-weight:700;background:transparent;display:inline-flex;align-items:center;justify-content:center}
.btn-secondary:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
.guide-index{background:var(--deep);color:var(--white);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.guide-index:after{content:"C7";position:absolute;right:-10px;bottom:-35px;color:#292a30;font-size:110px;font-weight:900;line-height:1}
.guide-index h2{font-size:21px;margin:0 0 18px;position:relative;z-index:1}
.index-item{display:flex;gap:12px;padding:13px 0;border-top:1px solid #3b3c42;position:relative;z-index:1}
.index-no{color:var(--lime);font-weight:800;font-size:13px;min-width:25px}
.index-item a{font-size:14px;color:#e7e7e8}
.index-item a:hover{color:var(--lime)}
.section{padding:82px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:32px}
.section-title{font-size:34px;line-height:1.25;letter-spacing:-.03em;margin:0}
.section-desc{color:var(--muted);max-width:520px;margin:0}
.route-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
.route-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-height:170px;transition:var(--ease)}
.route-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c6c4bc}
.route-card.dark{background:var(--deep);color:var(--white);border-color:var(--deep)}
.route-card.wide{grid-row:span 2;min-height:358px;display:flex;flex-direction:column;justify-content:space-between}
.route-top{display:flex;justify-content:space-between;align-items:center;gap:15px}
.route-no{color:var(--plum);font-weight:900;font-size:14px}
.dark .route-no{color:var(--lime)}
.route-card h3{font-size:23px;margin:17px 0 8px;line-height:1.35}
.route-card p{color:var(--muted);font-size:14px;margin:0;max-width:520px}
.dark p{color:#bdbdc2}
.route-link{color:var(--plum);font-size:14px;font-weight:800;margin-top:22px;display:inline-block}
.dark .route-link{color:var(--lime)}
.guide-flow{background:var(--plum-soft)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(118,80,111,.35)}
.flow-step{padding:25px 23px 10px;border-right:1px solid rgba(118,80,111,.25);min-height:170px}
.flow-step:last-child{border-right:0}
.flow-num{font-size:30px;font-weight:900;color:var(--plum);line-height:1}
.flow-step h3{font-size:18px;margin:18px 0 7px}
.flow-step p{font-size:14px;color:#68606a;margin:0}
.topic-area{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px;align-items:start}
.topic-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:8px 25px}
.topic-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 0;border-bottom:1px solid var(--line)}
.topic-row:last-child{border-bottom:0}
.topic-row strong{font-size:16px}
.topic-row span{font-size:20px;color:var(--plum)}
.topic-row:hover strong{color:var(--plum)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{padding:8px 13px;border:1px solid var(--line);border-radius:8px;color:var(--muted);font-size:13px;background:var(--white)}
.tag:hover{border-color:var(--plum);color:var(--plum)}
.faq-list{max-width:850px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;padding:21px 3px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:22px;color:var(--plum)}
.faq-item[open] summary:after{content:"−"}
.faq-answer{color:var(--muted);font-size:14px;padding:0 35px 22px 3px;margin:0}
.cta{background:var(--lime);padding:48px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:30px;line-height:1.3;margin:0}
.cta p{margin:7px 0 0;color:#4c531f}
.cta-actions{display:flex;gap:11px;flex-wrap:wrap}
.cta .btn-secondary{border-color:var(--deep)}
.cta .btn-secondary:hover{background:var(--deep)}
.site-footer{background:var(--deep);color:#d8d8da;padding:55px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:35px}
.footer-brand p{color:#a9a9ae;font-size:13px;max-width:310px;margin:17px 0 0}
.footer-title{color:var(--lime);font-weight:800;font-size:14px;margin-bottom:15px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#b9b9bf;font-size:13px}
.footer-links a:hover{color:var(--white);padding-left:3px}
.footer-bottom{border-top:1px solid #37383e;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#898a90;font-size:12px}
@media(max-width:1024px){
 .header-inner{gap:16px}.brand{min-width:245px}.main-nav a{padding:8px 8px;font-size:13px}
 .guide-hero{gap:35px}.topic-area{gap:35px}
}
@media(max-width:767px){
 .container{width:min(100% - 32px,var(--container))}
 .site-header{height:70px}.header-inner{gap:10px}.brand{min-width:0;flex:1}.brand-mark{width:36px;height:36px}.brand-text{font-size:12px}.brand-sub{font-size:10px}
 .main-nav{display:none;position:absolute;top:70px;left:0;right:0;padding:13px 16px;background:var(--deep);flex-direction:column;align-items:stretch;box-shadow:0 15px 30px rgba(0,0,0,.2)}
 .main-nav.open{display:flex}.main-nav a{color:#d9d9dc;padding:12px 14px}.main-nav a:hover,.main-nav a.active{background:#292a30;color:var(--lime)}
 .header-action{padding:10px 12px;font-size:12px}.menu-toggle{display:block}
 .hero-inner{padding:25px 0 55px}.breadcrumb{margin-bottom:30px}.guide-hero{display:block}.hero h1{font-size:36px}.hero-lead{font-size:16px}.guide-index{margin-top:35px}
 .section{padding:58px 0}.section-head{display:block;margin-bottom:24px}.section-title{font-size:29px}.section-desc{margin-top:12px}
 .route-grid{display:block}.route-card,.route-card.wide{min-height:0;margin-bottom:13px}.route-card.wide{min-height:240px}
 .flow-grid{display:block}.flow-step{border-right:0;border-bottom:1px solid rgba(118,80,111,.25);min-height:0;padding:22px 0}.flow-step:last-child{border-bottom:0}
 .topic-area{display:block}.topic-list{margin-top:26px}.topic-row{padding:17px 0}
 .cta-inner{display:block}.cta h2{font-size:26px}.cta-actions{margin-top:22px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
}
@media(max-width:520px){.header-action{display:none}.hero-actions a{width:100%}.footer-grid{grid-template-columns:1fr 1fr}.brand-main{white-space:nowrap}}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}