/* roulang page: index */
:root{
  --ink:#18211f;
  --green:#173d36;
  --green-2:#28574d;
  --orange:#d97838;
  --paper:#f7f5f0;
  --white:#fffdfa;
  --mist:#eef0e9;
  --line:#dfe2da;
  --muted:#69736e;
  --soft-orange:#f4e4d5;
  --shadow:0 16px 42px rgba(25,40,35,.09);
  --shadow-sm:0 8px 20px rgba(25,40,35,.07);
  --radius:16px;
  --radius-lg:26px;
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"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:color .2s ease,transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.eyebrow{display:flex;align-items:center;gap:9px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.12em}
.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
.section{padding:98px 0;position:relative}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:36px}
.section-head h2{font-family:"Songti SC","STSong",serif;font-size:38px;letter-spacing:-.04em;line-height:1.2;margin:8px 0 0}
.section-intro{max-width:430px;color:var(--muted);margin:0;font-size:15px}
.btn{min-height:46px;padding:11px 20px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:10px;font-weight:700;font-size:14px}
.btn:after{content:"→";font-size:18px;line-height:1;transition:transform .2s ease}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:hover:after{transform:translateX(3px)}
.btn-primary{color:#fff;background:var(--green)}
.btn-primary:hover{background:#0f302a}
.btn-outline{color:var(--green);border-color:#bfc7bd;background:transparent}
.btn-outline:hover{background:var(--white);border-color:var(--green)}
.btn-accent{color:#fff;background:var(--orange)}
.btn-accent:hover{background:#bd6026}
.tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;background:#e6ece6;color:var(--green);border-radius:999px;font-size:12px;font-weight:700;line-height:1.4}
.tag.orange{color:#97481e;background:var(--soft-orange)}
.topline{background:var(--green);color:#e6eee9;font-size:12px}
.topline .container{height:34px;display:flex;align-items:center;justify-content:flex-end;gap:22px}
.topline span{display:flex;align-items:center;gap:7px}
.topline i{width:5px;height:5px;border-radius:50%;background:#e6a56b}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,250,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.brand{display:flex;align-items:center;gap:10px;min-width:225px}
.brand-mark{position:relative;width:34px;height:34px;border:1px solid var(--green);border-radius:50%}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:1px solid var(--orange)}
.brand-mark:before{width:16px;height:16px;left:6px;top:7px}
.brand-mark:after{width:5px;height:5px;right:4px;top:4px;background:var(--orange)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;letter-spacing:.04em;color:var(--green)}
.brand-text small{font-size:10px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
.nav{display:flex;align-items:center;justify-content:center;gap:26px}
.nav a{padding:28px 0 24px;color:#4c5752;font-size:14px;font-weight:700;position:relative;white-space:nowrap}
.nav a:after{content:"";position:absolute;bottom:17px;left:50%;width:0;height:2px;background:var(--orange);transition:.2s}
.nav a:hover,.nav a.active{color:var(--green)}
.nav a:hover:after,.nav a.active:after{width:20px;left:calc(50% - 10px)}
.header-action{min-width:116px}
.menu-toggle{display:none;border:0;background:transparent;color:var(--green);font-size:25px;padding:8px}
.hero{overflow:hidden;position:relative;padding:78px 0 48px;background:var(--paper)}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(23,61,54,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(23,61,54,.045) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(90deg,#000,transparent 74%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:45px;align-items:center;min-height:510px}
.hero-copy h1{max-width:680px;margin:14px 0 20px;font-family:"Songti SC","STSong",serif;font-weight:700;font-size:clamp(43px,5vw,67px);letter-spacing:-.065em;line-height:1.1}
.hero-copy h1 em{font-style:normal;color:var(--green)}
.hero-copy p{max-width:600px;color:#53605a;font-size:18px;margin:0 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-notes{display:flex;flex-wrap:wrap;gap:0;margin-top:43px}
.hero-notes span{padding:0 17px;border-left:1px solid #cbd0c8;color:var(--muted);font-size:13px}
.hero-notes span:first-child{border-left:0;padding-left:0}
.hero-art{height:470px;position:relative}
.art-panel{position:absolute;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.art-main{width:312px;height:415px;right:73px;top:20px;border-radius:24px;padding:18px;background:#173d36;color:#f8f5ed;transform:rotate(3deg)}
.phone-top{display:flex;justify-content:space-between;font-size:11px;color:#c5d5ce}
.phone-title{font-family:"Songti SC","STSong",serif;font-size:25px;margin:26px 0 19px;line-height:1.15}
.phone-feature{height:155px;padding:17px;border-radius:15px;background:linear-gradient(135deg,#d97838,#ba5427);position:relative;overflow:hidden}
.phone-feature:after{content:"";position:absolute;width:150px;height:150px;right:-55px;bottom:-68px;border:1px solid rgba(255,255,255,.4);border-radius:50%}
.phone-feature span{position:relative;font-size:12px;color:#f8e6d8}
.phone-feature b{position:relative;display:block;width:130px;margin-top:10px;font-size:22px;line-height:1.2}
.mini-list{margin-top:18px;display:grid;gap:10px}
.mini-list div{padding:9px 0;border-bottom:1px solid rgba(255,255,255,.16);font-size:12px;display:flex;justify-content:space-between}
.art-news{left:0;top:76px;width:202px;border-radius:15px;padding:17px;transform:rotate(-7deg)}
.art-news .line{height:7px;margin:9px 0;background:#dfe2da;border-radius:10px}
.art-news .line.short{width:63%}
.art-news b{display:block;color:var(--green);font-size:14px}
.art-card{right:0;bottom:15px;width:194px;border-radius:15px;padding:15px;transform:rotate(-5deg)}
.art-card .card-orb{height:73px;border-radius:11px;background:radial-gradient(circle at 65% 35%,#f3c08e 0 8%,transparent 9%),linear-gradient(125deg,#e6ece5,#b7c6bd);margin-bottom:12px}
.art-card small{color:var(--muted)}
.quick{padding:18px 0 0}
.quick-grid{display:grid;grid-template-columns:1.22fr 1fr 1.08fr .9fr 1.1fr .95fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.quick-card{min-height:150px;padding:20px;background:var(--white);position:relative}
.quick-card:hover{z-index:2;background:#fcfbf7;box-shadow:inset 0 -3px var(--orange)}
.quick-card .num{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.1em}
.quick-card h3{font-size:16px;color:var(--green);margin:17px 0 4px}
.quick-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.5}
.quick-card .arrow{position:absolute;right:17px;bottom:15px;color:var(--green);font-size:20px}
.editorial{padding-top:110px}
.editorial-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:52px;align-items:start}
.editorial-copy{padding-top:16px}
.editorial-copy h2{font-family:"Songti SC","STSong",serif;font-size:40px;line-height:1.2;letter-spacing:-.05em;margin:14px 0}
.editorial-copy p{color:var(--muted);max-width:370px;margin:0 0 23px}
.feature-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.feature-card{min-height:304px;border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;position:relative;background:var(--green);color:#fff}
.feature-card:nth-child(2){background:#ded9cc;color:var(--ink)}
.feature-card:before{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(255,255,255,.26);border-radius:50%;right:-75px;top:-85px}
.feature-card:nth-child(2):before{border-color:#bc8970;right:-88px;top:-100px}
.feature-card>*{position:relative}
.feature-card h3{font-family:"Songti SC","STSong",serif;font-size:25px;line-height:1.25;margin:12px 0 10px}
.feature-card p{font-size:13px;margin:0 0 18px;opacity:.78}
.feature-card a{font-size:13px;font-weight:700;color:#f3bf90}
.feature-card:nth-child(2) a{color:#9d4e24}
.latest{background:#edf0e9}
.list-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:13px;box-shadow:var(--shadow-sm)}
.latest-lead{display:grid;grid-template-columns:.8fr 1.2fr;gap:27px;padding:23px;border-bottom:1px solid var(--line)}
.cover{position:relative;overflow:hidden;border-radius:12px;background:linear-gradient(135deg,#254b43,#a6b8ac)}
.cover:after{content:"";position:absolute;width:120px;height:120px;border:1px solid rgba(255,255,255,.3);right:-38px;top:-35px;border-radius:50%}
.cover .cover-label{position:absolute;left:15px;bottom:14px;z-index:1;color:white;font-size:12px;font-weight:700}
.latest-lead .cover{min-height:195px}
.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px}
.article-meta time:before{content:"·";margin-right:10px;color:#abb2ac}
.article-content h3{font-family:"Songti SC","STSong",serif;font-size:25px;line-height:1.3;margin:13px 0 9px}
.article-content p{color:var(--muted);font-size:14px;line-height:1.75;margin:0 0 17px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:13px;font-weight:800}
.text-link:after{content:"→";font-size:17px;transition:.2s}
.text-link:hover{color:var(--orange)}
.text-link:hover:after{transform:translateX(4px)}
.compact-list{padding:0 23px}
.compact-item{display:grid;grid-template-columns:120px 1fr auto;align-items:center;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.compact-item:last-child{border:0}
.compact-item .tag{justify-self:start}
.compact-item h4{font-size:16px;line-height:1.4;margin:0}
.compact-item p{grid-column:2;margin:3px 0 0;color:var(--muted);font-size:13px;line-height:1.45}
.compact-item .text-link{grid-column:3;grid-row:1/3}
.topic-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr 1.05fr;gap:18px}
.topic{border:1px solid var(--line);border-radius:var(--radius);min-height:286px;padding:22px;display:flex;flex-direction:column;justify-content:flex-end;background:var(--white);position:relative;overflow:hidden}
.topic:before{content:"";position:absolute;right:-30px;top:-35px;width:145px;height:145px;border:1px solid var(--line);border-radius:50%}
.topic:nth-child(1){background:var(--green);color:#fff}
.topic:nth-child(1):before{border-color:rgba(255,255,255,.25)}
.topic:nth-child(2){background:#ecdfd1}
.topic:nth-child(3){background:#e3e8e1}
.topic h3{font-family:"Songti SC","STSong",serif;font-size:23px;line-height:1.25;margin:13px 0 8px;position:relative}
.topic p{position:relative;font-size:13px;line-height:1.65;margin:0;color:inherit;opacity:.72}
.download{background:#fcfbf8}
.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.device-stage{height:420px;position:relative;background:#e5e7df;border-radius:var(--radius-lg);overflow:hidden}
.device-stage:before{content:"";position:absolute;inset:28px;border:1px solid rgba(23,61,54,.16);border-radius:19px}
.device{position:absolute;width:205px;height:355px;border:8px solid #1e2926;background:#f6f2e9;border-radius:28px;left:50%;top:35px;transform:translateX(-50%);box-shadow:0 18px 32px rgba(20,39,33,.25);padding:18px 12px}
.device:before{content:"";position:absolute;width:67px;height:15px;background:#1e2926;border-radius:0 0 10px 10px;left:calc(50% - 33px);top:-1px}
.device-screen-head{margin-top:14px;font-size:11px;color:var(--muted);display:flex;justify-content:space-between}
.device-screen-title{font-family:"Songti SC","STSong",serif;font-size:18px;color:var(--green);margin:21px 0 15px}
.screen-block{height:93px;border-radius:12px;background:var(--orange);padding:12px;color:#fff;font-size:11px}
.screen-block b{display:block;font-size:16px;margin-top:7px}
.screen-row{display:flex;gap:7px;margin-top:12px}
.screen-row span{height:48px;flex:1;border-radius:8px;background:#dfe6dc}
.device-chip{position:absolute;background:var(--white);border:1px solid var(--line);border-radius:11px;padding:10px 12px;box-shadow:var(--shadow-sm);font-size:12px;color:var(--green);font-weight:700}
.device-chip.one{left:35px;top:75px}.device-chip.two{right:33px;bottom:60px}
.download-copy h2{font-family:"Songti SC","STSong",serif;font-size:42px;line-height:1.2;letter-spacing:-.04em;margin:13px 0}
.download-copy>p{color:var(--muted);margin:0 0 22px}
.version-bar{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:22px 0;padding:14px 0;gap:10px}
.version-bar b{display:block;color:var(--green);font-size:14px}.version-bar span{font-size:11px;color:var(--muted)}
.download-actions{display:flex;flex-wrap:wrap;gap:10px}
.source-note{font-size:12px;color:#7d5440;margin:16px 0 0}
.timeline{background:var(--green);color:#f7f5f0}
.timeline .section-head h2{color:#fff}.timeline .section-intro{color:#c5d4cd}
.timeline-list{border-left:1px solid rgba(255,255,255,.25);margin-left:18%;padding-left:42px;display:grid;gap:0}
.time-item{position:relative;display:grid;grid-template-columns:140px 1fr;gap:25px;padding:0 0 34px}
.time-item:before{content:"";position:absolute;left:-49px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px #173d36}
.time-item:last-child{padding-bottom:0}
.time-item time{font-size:13px;color:#ecc093;font-weight:700}
.time-item h3{font-size:19px;margin:0 0 5px}.time-item p{font-size:14px;color:#c5d4cd;margin:0 0 8px}
.timeline .text-link{color:#f0bc8d}
.member-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center}
.member-card{min-height:365px;background:linear-gradient(135deg,#1b463e,#0f2c27);border-radius:var(--radius-lg);padding:34px;color:white;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.member-card:after{content:"";position:absolute;width:315px;height:315px;border:1px solid rgba(238,179,126,.35);border-radius:50%;right:-104px;bottom:-152px}
.member-card small{color:#e9b47e;letter-spacing:.12em}.member-card h2{font-family:"Songti SC","STSong",serif;font-size:39px;line-height:1.15;margin:50px 0 12px;position:relative;z-index:1}.member-card p{position:relative;z-index:1;max-width:320px;color:#c6d4ce;font-size:14px}
.member-info h2{font-family:"Songti SC","STSong",serif;font-size:35px;line-height:1.25;margin:11px 0}.member-info>p{color:var(--muted)}
.benefit-list{list-style:none;padding:0;margin:22px 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.benefit-list li{padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:#44514b}.benefit-list li:before{content:"✓";color:var(--orange);font-weight:900;margin-right:9px}
.flow{background:#e9ece5}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.flow-grid:before{content:"";position:absolute;left:12%;right:12%;top:26px;border-top:1px solid #aebcb2}
.flow-item{position:relative;padding:0 20px 0 0}
.flow-item b{display:flex;align-items:center;justify-content:center;width:53px;height:53px;border-radius:50%;background:var(--green);color:#fff;position:relative;font-size:14px}
.flow-item h3{font-size:17px;margin:17px 0 6px}.flow-item p{font-size:13px;color:var(--muted);margin:0;max-width:220px}
.security{background:#183d36;color:#fff;overflow:hidden}
.security-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;align-items:center}
.security-copy h2{font-family:"Songti SC","STSong",serif;font-size:41px;line-height:1.2;margin:12px 0}.security-copy p{color:#c7d4cd;max-width:415px}
.security-copy .btn{margin-top:16px;background:#f0e9dd;color:var(--green)}
.guard-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.guard{border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:20px;min-height:145px}
.guard b{display:flex;width:32px;height:32px;align-items:center;justify-content:center;border:1px solid #e1a46f;color:#e1a46f;border-radius:50%;font-size:14px}.guard h3{font-size:16px;margin:17px 0 5px}.guard p{font-size:12px;color:#baccc4;margin:0;line-height:1.6}
.feedback-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.quote{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:21px}
.quote:nth-child(2){margin-top:32px}.quote p{font-family:"Songti SC","STSong",serif;font-size:17px;line-height:1.65;margin:0 0 15px}.quote small{color:var(--muted)}
.service-box{border-left:2px solid var(--orange);padding:8px 0 8px 28px}.service-box h2{font-family:"Songti SC","STSong",serif;font-size:34px;line-height:1.25;margin:0 0 12px}.service-box p{color:var(--muted);font-size:14px}.service-list{list-style:none;padding:0;margin:21px 0}.service-list li{padding:9px 0;border-bottom:1px solid var(--line);font-size:14px;display:flex;justify-content:space-between}.service-list span{color:var(--muted)}
.faq-wrap{max-width:910px;margin:0 auto}
.faq-wrap .section-head{display:block;text-align:center}.faq-wrap .section-head h2{margin-top:10px}.faq-wrap .section-intro{margin:13px auto 0}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq-q{width:100%;border:0;background:transparent;padding:18px 20px;display:flex;text-align:left;align-items:center;gap:15px;color:var(--ink);font-weight:700}
.faq-q span{color:var(--orange);font-size:12px}.faq-q b{margin-left:auto;font-size:20px;font-weight:400;transition:.2s}
.faq-a{display:none;padding:0 24px 19px 56px;color:var(--muted);font-size:14px;line-height:1.75}
.faq-item.open{border-color:#b9c9bd}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q b{transform:rotate(45deg);color:var(--orange)}
.subscribe{padding:0 0 98px}
.subscribe-box{padding:38px 42px;border:1px solid #e0bc9e;border-radius:var(--radius-lg);background:#f2e1d1;display:grid;grid-template-columns:.92fr 1.08fr;gap:35px;align-items:center}
.subscribe-box h2{font-family:"Songti SC","STSong",serif;font-size:33px;line-height:1.25;margin:9px 0}.subscribe-box p{font-size:14px;color:#775b4b;margin:0}
.subscribe-form{display:grid;grid-template-columns:1fr auto;gap:10px}.field-label{grid-column:1/-1;color:#775b4b;font-size:13px;font-weight:700}.subscribe-form input{height:48px;border:1px solid #caab94;border-radius:9px;padding:0 14px;background:#fffaf5;color:var(--ink);outline:0}.subscribe-form input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(23,61,54,.12)}.subscribe-form button{border:0}.privacy{grid-column:1/-1;margin:1px 0 0;color:#896b58;font-size:12px}
.closing{padding:70px 0;background:#fffdfa;border-top:1px solid var(--line)}
.closing-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}.closing h2{font-family:"Songti SC","STSong",serif;font-size:42px;line-height:1.18;letter-spacing:-.04em;margin:8px 0}.closing p{color:var(--muted);margin:0}.closing-side{display:flex;justify-content:flex-end;align-items:center;gap:18px}.qr{width:88px;height:88px;background:repeating-linear-gradient(45deg,#173d36 0 4px,#f7f5f0 4px 8px);border:6px solid #fff;border-radius:8px;box-shadow:var(--shadow-sm)}.closing-actions{display:flex;flex-direction:column;gap:10px;align-items:stretch}
.footer{background:#142f2a;color:#d7e0da;padding:62px 0 20px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:36px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.14)}.footer .brand{min-width:0}.footer .brand-text strong{color:#fff}.footer .brand-mark{border-color:#d5e2d9}.footer p{color:#aebeb6;font-size:13px;max-width:280px;margin:17px 0}.footer h3{font-size:14px;color:#f5f4ed;margin:3px 0 15px}.footer-links{display:grid;gap:8px}.footer-links a{font-size:13px;color:#aebeb6}.footer-links a:hover{color:#efb583}.footer-badge{display:inline-flex;padding:5px 9px;border:1px solid rgba(239,181,131,.5);color:#efb583;font-size:11px;border-radius:4px;margin-right:6px}.copyright{padding-top:17px;display:flex;justify-content:space-between;gap:20px;color:#91a39a;font-size:12px}
.floating{position:fixed;right:20px;bottom:22px;z-index:30;width:45px;height:45px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--green);color:#fff;border:1px solid rgba(255,255,255,.35);box-shadow:var(--shadow);font-size:19px}
.floating:hover{background:var(--orange);transform:translateY(-2px)}
@media(max-width:1024px){.nav{gap:17px}.brand{min-width:190px}.quick-grid{grid-template-columns:repeat(3,1fr)}.topic-grid{grid-template-columns:1fr 1fr}.editorial-grid,.download-grid,.security-grid{gap:35px}.timeline-list{margin-left:8%}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.topline .container{justify-content:center;gap:12px}.topline span:last-child{display:none}.nav{display:none;position:absolute;left:0;right:0;top:78px;background:var(--white);padding:12px 24px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.nav.show{display:flex}.nav a{padding:12px 0}.nav a:after{display:none}.header-action{display:none}.menu-toggle{display:block}.hero{padding-top:50px}.hero-inner,.editorial-grid,.download-grid,.member-grid,.security-grid,.feedback-grid,.subscribe-box,.closing-grid{grid-template-columns:1fr}.hero-art{height:395px;max-width:530px;width:100%;margin:auto}.hero-copy p{font-size:16px}.section{padding:70px 0}.section-head{display:block}.section-head h2{font-size:32px}.section-intro{margin-top:14px}.editorial-copy{padding-top:0}.feature-pair{margin-top:0}.latest-lead{grid-template-columns:1fr}.latest-lead .cover{min-height:150px}.compact-item{grid-template-columns:92px 1fr}.compact-item .text-link{display:none}.compact-item p{grid-column:2}.download-grid{gap:35px}.device-stage{order:2;height:365px}.download-copy{order:1}.timeline-list{margin-left:12px;padding-left:28px}.time-item{grid-template-columns:92px 1fr;gap:13px}.time-item:before{left:-35px}.flow-grid{grid-template-columns:1fr 1fr;gap:31px}.flow-grid:before{display:none}.flow-item{padding-right:10px}.subscribe-box{padding:30px}.footer-grid{grid-template-columns:1fr 1fr}.closing-side{justify-content:flex-start}.security-copy h2{font-size:34px}}
@media(max-width:520px){body{font-size:15px}.topline{display:none}.nav-wrap{height:68px}.nav{top:68px}.brand-text strong{font-size:15px}.brand-text small{font-size:9px}.hero{padding:42px 0 24px}.hero-copy h1{font-size:39px}.hero-notes{margin-top:31px}.hero-notes span{width:50%;padding:7px 10px;border-left:0}.hero-art{height:330px}.art-main{width:230px;height:310px;right:36px}.phone-title{font-size:20px;margin:18px 0 12px}.phone-feature{height:105px}.mini-list{margin-top:8px}.mini-list div{padding:5px 0}.art-news{width:143px;padding:12px;top:42px}.art-card{width:138px;bottom:8px}.quick-grid{grid-template-columns:1fr 1fr}.quick-card{min-height:132px;padding:16px}.feature-pair,.topic-grid,.guard-grid,.quotes,.benefit-list{grid-template-columns:1fr}.feature-card{min-height:250px}.topic{min-height:220px}.section-head h2{font-size:30px}.list-panel{padding:7px}.compact-list{padding:0 15px}.compact-item{gap:10px;padding:15px 0}.compact-item h4{font-size:14px}.compact-item .tag{font-size:10px}.device-stage{height:330px}.device{transform:translateX(-50%) scale(.84);transform-origin:top center}.device-chip.one{left:14px}.device-chip.two{right:11px}.version-bar{grid-template-columns:1fr 1fr}.version-bar div:last-child{grid-column:1/-1}.time-item{grid-template-columns:1fr}.member-card{min-height:310px;padding:26px}.member-card h2{font-size:34px;margin-top:37px}.flow-grid{grid-template-columns:1fr}.faq-a{padding-left:21px}.subscribe-form{grid-template-columns:1fr}.subscribe-form .btn{width:100%}.closing h2{font-size:34px}.closing-side{align-items:flex-start}.footer-grid{grid-template-columns:1fr}.copyright{display:block;line-height:1.8}.floating{right:14px;bottom:14px}}

/* roulang page: article */
:root{
      --ink:#18211f;
      --green:#173d36;
      --green-2:#28574d;
      --orange:#d97838;
      --paper:#f7f5f0;
      --white:#fffdfa;
      --mist:#eef0e9;
      --line:#dfe2da;
      --muted:#69736e;
      --soft-orange:#f4e4d5;
      --shadow:0 16px 42px rgba(25,40,35,.09);
      --shadow-sm:0 8px 20px rgba(25,40,35,.07);
      --radius:16px;
      --radius-lg:26px;
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"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:color .2s ease,transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .topline{height:34px;background:var(--green);color:#dbe6df;font-size:12px;letter-spacing:.04em}
    .topline .container{height:34px;display:flex;align-items:center;justify-content:flex-end;gap:22px}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,250,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:10px;min-width:225px}
    .brand-mark{position:relative;width:34px;height:34px;border:1px solid var(--green);border-radius:50%}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:1px solid var(--orange)}
    .brand-mark:before{width:16px;height:16px;left:6px;top:7px}
    .brand-mark:after{width:5px;height:5px;right:4px;top:4px;background:var(--orange)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:17px;letter-spacing:.04em;color:var(--green)}
    .brand-text small{font-size:10px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
    .nav{display:flex;align-items:center;justify-content:center;gap:26px}
    .nav a{padding:28px 0 24px;color:#4c5752;font-size:14px;font-weight:700;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;bottom:17px;left:50%;width:0;height:2px;background:var(--orange);transition:.2s}
    .nav a:hover,.nav a.active{color:var(--green)}
    .nav a:hover:after,.nav a.active:after{width:20px;left:calc(50% - 10px)}
    .header-action{min-width:116px}
    .btn{min-height:46px;padding:11px 20px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:10px;font-weight:700;font-size:14px}
    .btn:after{content:"→";font-size:18px;line-height:1;transition:transform .2s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn:hover:after{transform:translateX(3px)}
    .btn-primary{color:#fff;background:var(--green)}
    .btn-primary:hover{background:#0f302a}
    .btn-outline{color:var(--green);border-color:#bfc7bd;background:transparent}
    .btn-outline:hover{background:var(--white);border-color:var(--green)}
    .btn-accent{color:#fff;background:var(--orange)}
    .btn-accent:hover{background:#bd6026}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--green);font-size:25px;padding:8px}
    .eyebrow{display:flex;align-items:center;gap:9px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.12em}
    .eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
    .article-head{padding:54px 0 62px;background:var(--paper);border-bottom:1px solid var(--line)}
    .crumbs{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:35px}
    .crumbs a:hover{color:var(--orange)}
    .crumbs span{color:#a9b0aa}
    .article-heading{max-width:930px}
    .article-heading h1{margin:13px 0 20px;font-family:"Songti SC","STSong",serif;font-size:clamp(36px,5vw,62px);line-height:1.2;letter-spacing:-.055em;color:var(--green)}
    .article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:13px}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 10px;background:#e6ece6;color:var(--green);border-radius:999px;font-size:12px;font-weight:700;line-height:1.4}
    .tag.orange{color:#97481e;background:var(--soft-orange)}
    .article-intro{padding:48px 0 32px}
    .intro-box{max-width:860px;padding:25px 30px;border-left:3px solid var(--orange);background:var(--white);box-shadow:var(--shadow-sm);border-radius:0 var(--radius) var(--radius) 0;color:#4e5a54;font-size:18px}
    .cover-section{padding:28px 0 76px}
    .cover-art{min-height:300px;border-radius:var(--radius-lg);overflow:hidden;position:relative;background:linear-gradient(125deg,#173d36 0%,#28574d 55%,#d97838 180%);display:flex;align-items:end;padding:38px;color:#fff}
    .cover-art:before,.cover-art:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.2);border-radius:50%}
    .cover-art:before{width:460px;height:460px;right:-80px;top:-250px}
    .cover-art:after{width:260px;height:260px;right:120px;bottom:-180px}
    .cover-copy{position:relative;z-index:1}
    .cover-copy small{display:block;color:#f4d1b8;letter-spacing:.15em;margin-bottom:8px}
    .cover-copy strong{font-family:"Songti SC","STSong",serif;font-size:32px;font-weight:600}
    .reading-section{padding:22px 0 90px}
    .reading-layout{display:grid;grid-template-columns:180px minmax(0,820px) 1fr;gap:42px;align-items:start}
    .reading-aside{position:sticky;top:135px;padding-top:8px}
    .aside-label{color:var(--orange);font-size:12px;font-weight:700;letter-spacing:.12em}
    .aside-line{height:1px;background:var(--line);margin:15px 0}
    .aside-text{font-size:13px;color:var(--muted);line-height:1.8}
    .article-content{min-width:0;color:#34413b;font-size:17px;line-height:1.9}
    .article-content h2,.article-content h3{color:var(--green);font-family:"Songti SC","STSong",serif;line-height:1.35}
    .article-content h2{font-size:31px;margin:42px 0 16px}
    .article-content h3{font-size:23px;margin:30px 0 12px}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{padding-left:25px;margin:0 0 24px}
    .article-content li{margin:8px 0}
    .article-content blockquote{margin:28px 0;padding:18px 22px;background:var(--mist);border-left:3px solid var(--green);color:#53615a}
    .article-content img{border-radius:14px;margin:28px auto}
    .article-content table{display:block;overflow-x:auto;border-collapse:collapse;width:100%;margin:26px 0}
    .article-content th,.article-content td{padding:11px 15px;border:1px solid var(--line);white-space:nowrap;text-align:left}
    .article-content th{background:var(--mist);color:var(--green)}
    .article-content a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
    .article-content a:hover{color:var(--orange)}
    .guide-box{margin-top:58px;padding:25px 28px;background:#f0e5d9;border-radius:var(--radius);border:1px solid #e7d5c5;color:#684c3b}
    .guide-box strong{display:block;color:#8b4927;margin-bottom:6px}
    .related-section{padding:82px 0;background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}
    .section-head h2{font-family:"Songti SC","STSong",serif;font-size:38px;letter-spacing:-.04em;line-height:1.2;margin:8px 0 0;color:var(--green)}
    .section-intro{max-width:430px;color:var(--muted);margin:0;font-size:15px}
    .related-empty{padding:30px;background:var(--paper);border:1px dashed #cbd2c8;border-radius:var(--radius);color:var(--muted);display:flex;justify-content:space-between;align-items:center;gap:20px}
    .article-actions{padding:35px 0 80px}
    .action-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;border-top:1px solid var(--line)}
    .action-links{display:flex;flex-wrap:wrap;gap:11px}
    .footer{background:var(--green);color:#dce6df;padding:66px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.05fr;gap:42px}
    .footer .brand-text strong{color:#fff}
    .footer .brand-text small{color:#b6c8bf}
    .footer p{color:#b9c7c0;font-size:13px;line-height:1.8;margin:18px 0 0}
    .footer h3{font-size:14px;color:#fff;margin:4px 0 15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#b9c7c0;font-size:13px}
    .footer-links a:hover{color:#f2b17e;transform:translateX(2px)}
    .footer-badge{display:inline-flex;margin:18px 6px 0 0;padding:4px 9px;border:1px solid rgba(255,255,255,.25);border-radius:999px;color:#d6e4dc;font-size:11px}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);margin-top:48px;padding-top:20px;color:#9fb3a8;font-size:12px}
    @media (max-width:1024px){
      .nav{gap:16px}
      .brand{min-width:190px}
      .reading-layout{grid-template-columns:145px minmax(0,1fr);gap:30px}
      .reading-layout>aside:last-child{display:none}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:68px}
      .menu-toggle{display:block}
      .header-action{display:none}
      .nav{display:none;position:absolute;left:16px;right:16px;top:102px;padding:10px 20px;flex-direction:column;align-items:stretch;gap:0;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
      .nav.is-open{display:flex}
      .nav a{padding:13px 0;border-bottom:1px solid var(--line)}
      .nav a:last-child{border-bottom:0}
      .nav a:after{bottom:0;left:0!important}
      .nav a:hover:after,.nav a.active:after{width:24px}
      .article-head{padding:38px 0 48px}
      .article-heading h1{font-size:40px}
      .intro-box{font-size:16px;padding:20px}
      .reading-layout{display:block}
      .reading-aside{position:static;margin-bottom:26px}
      .article-content{font-size:16px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:6px}
    }
    @media (max-width:520px){
      .topline .container{justify-content:center;gap:12px;font-size:11px}
      .topline .container span:last-child{display:none}
      .brand{min-width:0}
      .brand-text strong{font-size:15px}
      .brand-text small{font-size:9px}
      .article-heading h1{font-size:34px}
      .crumbs{flex-wrap:wrap;margin-bottom:25px}
      .cover-art{min-height:245px;padding:25px}
      .cover-copy strong{font-size:25px}
      .section-head{display:block}
      .section-head h2{font-size:31px;margin-bottom:12px}
      .related-empty{display:block}
      .related-empty .btn{margin-top:18px}
      .action-bar{display:block}
      .action-links{margin-top:18px}
      .footer-grid{grid-template-columns:1fr}
      .footer{padding-top:48px}
    }

/* roulang page: category1 */
:root{
  --ink:#18211f;
  --green:#173d36;
  --green-2:#28574d;
  --orange:#d97838;
  --paper:#f7f5f0;
  --white:#fffdfa;
  --mist:#eef0e9;
  --line:#dfe2da;
  --muted:#69736e;
  --soft-orange:#f4e4d5;
  --soft-green:#e6ece6;
  --red:#a95043;
  --shadow:0 16px 42px rgba(25,40,35,.09);
  --shadow-sm:0 8px 20px rgba(25,40,35,.07);
  --radius:16px;
  --radius-lg:26px;
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"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:color .2s ease,transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible{
  outline:3px solid rgba(217,120,56,.35);
  outline-offset:3px;
}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.topline{
  border-bottom:1px solid rgba(223,226,218,.8);
  background:#f2f1eb;
  color:var(--muted);
  font-size:12px;
}
.topline .container{
  min-height:34px;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:20px;
}
.topline span{display:inline-flex;align-items:center;gap:7px}
.topline span:before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--orange);
}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,253,250,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.nav-wrap{
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:25px;
}
.brand{display:flex;align-items:center;gap:10px;min-width:225px}
.brand-mark{
  position:relative;
  width:34px;
  height:34px;
  flex:0 0 34px;
  border:1px solid var(--green);
  border-radius:50%;
}
.brand-mark:before,.brand-mark:after{
  content:"";
  position:absolute;
  border-radius:50%;
  border:1px solid var(--orange);
}
.brand-mark:before{width:16px;height:16px;left:6px;top:7px}
.brand-mark:after{width:5px;height:5px;right:4px;top:4px;background:var(--orange)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;letter-spacing:.04em;color:var(--green)}
.brand-text small{font-size:10px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
.nav{display:flex;align-items:center;justify-content:center;gap:26px}
.nav a{
  padding:28px 0 24px;
  color:#4c5752;
  font-size:14px;
  font-weight:700;
  position:relative;
  white-space:nowrap;
}
.nav a:after{
  content:"";
  position:absolute;
  bottom:17px;
  left:50%;
  width:0;
  height:2px;
  background:var(--orange);
  transition:.2s;
}
.nav a:hover,.nav a.active{color:var(--green)}
.nav a:hover:after,.nav a.active:after{width:20px;left:calc(50% - 10px)}
.btn{
  min-height:46px;
  padding:11px 20px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  border:1px solid transparent;
  border-radius:10px;
  font-weight:700;
  font-size:14px;
}
.btn:after{content:"→";font-size:18px;line-height:1;transition:transform .2s ease}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:hover:after{transform:translateX(3px)}
.btn-primary{color:#fff;background:var(--green)}
.btn-primary:hover{background:#0f302a;color:#fff}
.btn-outline{color:var(--green);border-color:#bfc7bd;background:transparent}
.btn-outline:hover{background:var(--white);border-color:var(--green)}
.btn-accent{color:#fff;background:var(--orange)}
.btn-accent:hover{background:#bd6026;color:#fff}
.header-action{min-width:116px}
.menu-toggle{
  display:none;
  border:0;
  background:transparent;
  color:var(--green);
  font-size:25px;
  line-height:1;
  padding:8px;
}
.section{padding:92px 0;position:relative}
.eyebrow{
  display:flex;
  align-items:center;
  gap:9px;
  color:var(--orange);
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
}
.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:35px;
}
.section-head h2{
  margin:8px 0 0;
  font-family:"Songti SC","STSong",serif;
  font-size:38px;
  line-height:1.2;
  letter-spacing:-.045em;
}
.section-intro{max-width:450px;margin:0;color:var(--muted);font-size:15px}
.tag{
  display:inline-flex;
  align-items:center;
  width:max-content;
  padding:4px 9px;
  border-radius:999px;
  background:#e6ece6;
  color:var(--green);
  font-size:12px;
  line-height:1.4;
  font-weight:700;
}
.tag.orange{background:var(--soft-orange);color:#97481e}
.tag.light{background:rgba(255,255,255,.13);color:#f5efe5;border:1px solid rgba(255,255,255,.16)}
.page-mast{
  padding:64px 0 62px;
  overflow:hidden;
  position:relative;
  background:var(--white);
  border-bottom:1px solid var(--line);
}
.page-mast:before{
  content:"";
  position:absolute;
  width:430px;
  height:430px;
  border:1px solid rgba(23,61,54,.12);
  border-radius:50%;
  right:-100px;
  top:-210px;
}
.page-mast:after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(90deg,rgba(23,61,54,.035) 1px,transparent 1px),linear-gradient(rgba(23,61,54,.035) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(90deg,transparent 0%,#000 55%,transparent 100%);
}
.breadcrumb{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  margin-bottom:28px;
  color:var(--muted);
  font-size:13px;
}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb i{font-style:normal;color:#a0a8a2}
.mast-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:50px;
  align-items:end;
}
.mast-title h1{
  margin:12px 0 15px;
  color:var(--green);
  font-family:"Songti SC","STSong",serif;
  font-size:clamp(42px,5.3vw,64px);
  line-height:1.07;
  letter-spacing:-.065em;
}
.mast-title p{max-width:680px;margin:0;color:#52605a;font-size:17px}
.mast-code{
  padding:23px 26px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(247,245,240,.84);
}
.mast-code span{display:block;color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.16em}
.mast-code strong{
  display:block;
  margin:4px 0 7px;
  color:var(--green);
  font-family:"Songti SC","STSong",serif;
  font-size:42px;
  line-height:1;
}
.mast-code small{color:var(--muted);font-size:12px}
.filter-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  padding:21px 0;
  border-bottom:1px solid var(--line);
}
.filter-bar b{margin-right:10px;color:var(--green);font-size:14px}
.filter-chip{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:5px 13px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--white);
  color:var(--muted);
  font-size:13px;
  font-weight:700;
}
.filter-chip:hover,.filter-chip.active{border-color:var(--green);background:var(--green);color:#fff}
.featured-wrap{padding-top:58px}
.featured-news{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  min-height:390px;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--white);
  box-shadow:var(--shadow-sm);
}
.feature-art{
  position:relative;
  min-height:350px;
  overflow:hidden;
  background:#dfe8df;
}
.feature-art:before{
  content:"";
  position:absolute;
  width:330px;
  height:330px;
  border:1px solid rgba(255,255,255,.55);
  border-radius:50%;
  left:16%;
  top:18%;
}
.feature-art:after{
  content:"";
  position:absolute;
  width:220px;
  height:220px;
  border:24px solid rgba(217,120,56,.82);
  border-radius:50%;
  right:-45px;
  bottom:-60px;
}
.editor-sheet{
  position:absolute;
  left:18%;
  top:14%;
  z-index:1;
  width:58%;
  padding:23px;
  background:var(--white);
  box-shadow:0 18px 30px rgba(22,54,45,.13);
  transform:rotate(-7deg);
}
.editor-sheet small{display:block;color:var(--orange);font-weight:800;letter-spacing:.12em}
.editor-sheet b{
  display:block;
  margin:22px 0 13px;
  color:var(--green);
  font-family:"Songti SC","STSong",serif;
  font-size:29px;
  line-height:1.2;
}
.editor-lines span{display:block;height:5px;margin-top:8px;background:#dce3db}
.editor-lines span:nth-child(2){width:80%}
.editor-lines span:nth-child(3){width:64%}
.feature-content{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  padding:48px 50px;
}
.meta{display:flex;align-items:center;flex-wrap:wrap;gap:11px;color:var(--muted);font-size:13px}
.meta time:before{content:"·";padding-right:11px;color:#b6bdb7}
.feature-content h2{
  max-width:460px;
  margin:17px 0 16px;
  color:var(--green);
  font-family:"Songti SC","STSong",serif;
  font-size:35px;
  line-height:1.25;
  letter-spacing:-.04em;
}
.feature-content p{max-width:470px;margin:0 0 26px;color:#59635e}
.news-section{background:var(--paper)}
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.news-card{
  display:flex;
  min-height:248px;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--white);
}
.news-card:hover{transform:translateY(-4px);border-color:#c5cec5;box-shadow:var(--shadow)}
.news-art{
  position:relative;
  width:39%;
  min-width:180px;
  overflow:hidden;
  background:#d9e2db;
}
.news-art:before,.news-art:after{content:"";position:absolute}
.news-art:before{
  width:128px;
  height:128px;
  border:1px solid rgba(23,61,54,.3);
  border-radius:50%;
  left:25px;
  top:31px;
}
.news-art:after{
  width:84px;
  height:84px;
  right:-14px;
  bottom:22px;
  border-radius:50%;
  background:var(--orange);
  opacity:.78;
}
.news-art.art-2{background:#e9ddd0}
.news-art.art-2:before{width:165px;height:165px;border:17px solid rgba(217,120,56,.52);left:-55px;top:45px}
.news-art.art-2:after{width:105px;height:105px;right:21px;bottom:35px;background:var(--green)}
.news-art.art-3{background:#d8e1dd}
.news-art.art-3:before{width:105px;height:142px;left:37px;top:35px;border-radius:0;border:12px solid var(--white);transform:rotate(9deg)}
.news-art.art-3:after{width:70px;height:70px;right:20px;bottom:23px;background:#d97838}
.news-art.art-4{background:#e9e7d9}
.news-art.art-4:before{width:140px;height:140px;left:23px;top:46px;border:16px solid var(--green)}
.news-art.art-4:after{width:72px;height:72px;right:15px;top:27px;background:#d97838}
.news-art.art-5{background:#dde8e4}
.news-art.art-5:before{width:150px;height:80px;left:15px;top:75px;border-radius:70px;background:var(--green);border:0}
.news-art.art-5:after{width:82px;height:82px;right:8px;bottom:32px;background:#f1bc83}
.news-art.art-6{background:#eee2d7}
.news-art.art-6:before{width:125px;height:125px;left:25px;top:35px;border-radius:0;background:var(--white);border:0;transform:rotate(15deg)}
.news-art.art-6:after{width:52px;height:52px;right:32px;bottom:36px;background:var(--green)}
.news-body{
  display:flex;
  flex:1;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  padding:25px 27px;
}
.news-body h3{
  display:-webkit-box;
  margin:14px 0 10px;
  overflow:hidden;
  color:var(--green);
  font-family:"Songti SC","STSong",serif;
  font-size:22px;
  line-height:1.35;
  letter-spacing:-.025em;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
}
.news-body p{
  display:-webkit-box;
  margin:0 0 17px;
  overflow:hidden;
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--green);
  font-size:13px;
  font-weight:800;
}
.text-link:after{content:"→";font-size:17px;transition:transform .2s ease}
.text-link:hover{color:var(--orange)}
.text-link:hover:after{transform:translateX(4px)}
.list-more{
  display:flex;
  justify-content:center;
  padding-top:36px;
}
.notice-band{
  overflow:hidden;
  background:var(--green);
  color:#f9f4e9;
}
.notice-inner{
  display:grid;
  grid-template-columns:225px minmax(0,1fr) auto;
  gap:35px;
  align-items:center;
  padding:34px 0;
}
.notice-label{
  display:flex;
  align-items:center;
  gap:13px;
  color:#f5e8d9;
  font-size:14px;
  font-weight:800;
}
.notice-num{
  color:var(--orange);
  font-family:"Songti SC","STSong",serif;
  font-size:42px;
  line-height:1;
}
.notice-copy b{display:block;margin-bottom:4px;font-size:17px}
.notice-copy p{margin:0;color:#cbd7d0;font-size:14px}
.notice-date{color:#f5e7da;font-size:13px;white-space:nowrap}
.rank-grid{
  display:grid;
  grid-template-columns:.86fr 1.14fr;
  gap:42px;
  align-items:start;
}
.rank-intro{
  padding:32px;
  border-radius:var(--radius-lg);
  background:#e7ede6;
}
.rank-intro h2{
  margin:12px 0 16px;
  color:var(--green);
  font-family:"Songti SC","STSong",serif;
  font-size:37px;
  line-height:1.2;
  letter-spacing:-.045em;
}
.rank-intro p{margin:0;color:#59635e}
.rank-list{
  overflow:hidden;
  border-top:1px solid var(--line);
}
.rank-item{
  display:grid;
  grid-template-columns:58px minmax(0,1fr) auto;
  gap:19px;
  align-items:center;
  padding:19px 5px;
  border-bottom:1px solid var(--line);
}
.rank-item:hover{background:rgba(255,253,250,.65);padding-left:14px;padding-right:14px}
.rank-no{
  color:#b4b9b3;
  font-family:"Songti SC","STSong",serif;
  font-size:29px;
  font-weight:700;
}
.rank-item:nth-child(-n+3) .rank-no{color:var(--orange)}
.rank-title{min-width:0}
.rank-title b{
  display:block;
  overflow:hidden;
  color:var(--green);
  font-size:16px;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.rank-title span{display:block;margin-top:3px;color:var(--muted);font-size:12px}
.rank-item:hover .rank-title b{color:var(--orange)}
.rank-arrow{color:var(--orange);font-size:21px}
.subscription-section{padding-top:0}
.subscribe-box{
  position:relative;
  overflow:hidden;
  padding:52px 58px;
  border:1px solid #e2c4a7;
  border-radius:var(--radius-lg);
  background:var(--soft-orange);
}
.subscribe-box:after{
  content:"";
  position:absolute;
  width:210px;
  height:210px;
  right:-55px;
  top:-105px;
  border:1px solid rgba(151,72,30,.28);
  border-radius:50%;
}
.subscribe-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1fr minmax(300px,.72fr);
  gap:48px;
  align-items:center;
}
.subscribe-copy h2{
  margin:11px 0 13px;
  color:#693619;
  font-family:"Songti SC","STSong",serif;
  font-size:34px;
  line-height:1.2;
  letter-spacing:-.04em;
}
.subscribe-copy p{max-width:510px;margin:0;color:#805334}
.subscribe-form{display:grid;grid-template-columns:1fr auto;gap:10px}
.subscribe-form label{grid-column:1/-1;color:#805334;font-size:13px;font-weight:700}
.subscribe-form input{
  min-width:0;
  height:48px;
  padding:0 15px;
  border:1px solid #d5a984;
  border-radius:10px;
  background:#fffaf5;
  color:var(--ink);
}
.subscribe-form input::placeholder{color:#a5846d}
.subscribe-form input:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(23,61,54,.1);outline:0}
.form-note{grid-column:1/-1;margin:0;color:#8b654b;font-size:12px}
.faq-section{background:var(--white);border-top:1px solid var(--line)}
.faq-grid{
  display:grid;
  grid-template-columns:.78fr 1.22fr;
  gap:76px;
  align-items:start;
}
.faq-side h2{
  margin:12px 0 16px;
  color:var(--green);
  font-family:"Songti SC","STSong",serif;
  font-size:38px;
  line-height:1.2;
  letter-spacing:-.05em;
}
.faq-side p{margin:0;color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{
  width:100%;
  min-height:69px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:15px 0;
  border:0;
  background:transparent;
  color:var(--green);
  text-align:left;
  font-weight:800;
}
.faq-question span:first-child{display:flex;align-items:center;gap:14px}
.faq-number{color:var(--orange);font-size:12px;letter-spacing:.08em}
.faq-icon{
  position:relative;
  width:20px;
  height:20px;
  flex:0 0 20px;
}
.faq-icon:before,.faq-icon:after{
  content:"";
  position:absolute;
  top:9px;
  left:2px;
  width:16px;
  height:1px;
  background:var(--green);
  transition:transform .2s ease;
}
.faq-icon:after{transform:rotate(90deg)}
.faq-item.open .faq-icon:after{transform:rotate(0)}
.faq-answer{
  display:none;
  margin:0 0 20px;
  padding:15px 19px;
  border-left:3px solid var(--orange);
  background:#f7f5f0;
  color:#58625d;
  font-size:14px;
}
.faq-item.open .faq-answer{display:block}
.footer{
  padding:65px 0 0;
  background:#102f29;
  color:#d3ddd7;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.35fr .84fr .84fr .95fr;
  gap:45px;
  padding-bottom:46px;
}
.footer .brand{margin-bottom:18px}
.footer .brand-mark{border-color:#d5e0d8}
.footer .brand-text strong{color:#f7f3e9}
.footer .brand-text small{color:#a9b8b0}
.footer p{margin:0;color:#b7c5bd;font-size:14px;line-height:1.8}
.footer-badge{
  display:inline-flex;
  margin:18px 7px 0 0;
  padding:4px 9px;
  border:1px solid rgba(255,255,255,.17);
  border-radius:999px;
  color:#d7e1db;
  font-size:11px;
}
.footer h3{margin:0 0 15px;color:#fbf7ee;font-size:14px;font-weight:800}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#b7c5bd;font-size:14px}
.footer-links a:hover{color:#f0a16a}
.copyright{
  min-height:65px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  border-top:1px solid rgba(255,255,255,.12);
  color:#9eada5;
  font-size:12px;
}
@media (max-width:1024px){
  .nav{gap:17px}
  .nav a{font-size:13px}
  .mast-grid{grid-template-columns:1fr 250px;gap:30px}
  .news-grid{gap:16px}
  .featured-news{grid-template-columns:.96fr 1.04fr}
  .feature-content{padding:38px}
  .footer-grid{gap:28px}
}
@media (max-width:768px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .topline .container{justify-content:center;gap:14px;font-size:11px}
  .topline span:last-child{display:none}
  .nav-wrap{min-height:67px}
  .brand{min-width:0}
  .brand-text small{display:none}
  .nav{
    position:absolute;
    top:67px;
    left:0;
    right:0;
    display:none;
    align-items:stretch;
    flex-direction:column;
    gap:0;
    padding:8px 16px 18px;
    border-bottom:1px solid var(--line);
    background:var(--white);
    box-shadow:var(--shadow-sm);
  }
  .nav.show{display:flex}
  .nav a{padding:12px 5px;font-size:14px}
  .nav a:after{bottom:7px;left:5px}
  .nav a:hover:after,.nav a.active:after{left:5px;width:20px}
  .header-action{display:none}
  .menu-toggle{display:block}
  .page-mast{padding:43px 0}
  .mast-grid{grid-template-columns:1fr;gap:26px}
  .mast-code{max-width:260px}
  .section{padding:65px 0}
  .section-head{display:block;margin-bottom:27px}
  .section-intro{margin-top:14px}
  .featured-wrap{padding-top:37px}
  .featured-news{grid-template-columns:1fr}
  .feature-art{min-height:255px}
  .feature-content{padding:33px 28px}
  .feature-content h2{font-size:29px}
  .news-grid{grid-template-columns:1fr}
  .notice-inner{grid-template-columns:1fr auto;gap:12px 20px;padding:28px 0}
  .notice-copy{grid-column:1/-1;grid-row:2}
  .rank-grid{grid-template-columns:1fr;gap:28px}
  .rank-intro{padding:26px}
  .subscribe-box{padding:36px 28px}
  .subscribe-grid{grid-template-columns:1fr;gap:26px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .copyright{align-items:flex-start;flex-direction:column;justify-content:center;padding:15px 0;gap:3px}
}
@media (max-width:520px){
  body{font-size:15px}
  .container{width:min(calc(100% - 28px),var(--container))}
  .mast-title h1{font-size:40px}
  .mast-title p{font-size:15px}
  .filter-bar b{width:100%;margin-bottom:2px}
  .featured-news{border-radius:18px}
  .feature-art{min-height:218px}
  .editor-sheet{left:17%;width:62%;padding:17px}
  .editor-sheet b{margin:15px 0 9px;font-size:23px}
  .feature-content{padding:29px 22px}
  .news-card{min-height:0;flex-direction:column}
  .news-art{width:100%;height:160px}
  .news-body{padding:22px}
  .section-head h2,.faq-side h2{font-size:32px}
  .notice-inner{grid-template-columns:1fr}
  .notice-date{display:none}
  .subscribe-box{padding:31px 21px}
  .subscribe-copy h2{font-size:29px}
  .subscribe-form{grid-template-columns:1fr}
  .subscribe-form .btn{width:100%}
  .rank-item{grid-template-columns:43px minmax(0,1fr) auto;gap:10px}
  .rank-title b{white-space:normal}
  .footer-grid{grid-template-columns:1fr;gap:27px}
}

/* roulang page: category2 */
:root{
      --ink:#18211f;--green:#173d36;--green-2:#28574d;--orange:#d97838;
      --paper:#f7f5f0;--white:#fffdfa;--mist:#eef0e9;--line:#dfe2da;
      --muted:#69736e;--soft-orange:#f4e4d5;--shadow:0 16px 42px rgba(25,40,35,.09);
      --shadow-sm:0 8px 20px rgba(25,40,35,.07);--radius:16px;--radius-lg:26px;
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"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:color .2s ease,transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .topline{height:34px;background:var(--green);color:#dce8df;font-size:12px}
    .topline .container{height:34px;display:flex;align-items:center;justify-content:flex-end;gap:22px}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,250,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:10px;min-width:225px}
    .brand-mark{position:relative;width:34px;height:34px;border:1px solid var(--green);border-radius:50%}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:1px solid var(--orange)}
    .brand-mark:before{width:16px;height:16px;left:6px;top:7px}
    .brand-mark:after{width:5px;height:5px;right:4px;top:4px;background:var(--orange)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:17px;letter-spacing:.04em;color:var(--green)}
    .brand-text small{font-size:10px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
    .nav{display:flex;align-items:center;justify-content:center;gap:26px}
    .nav a{padding:28px 0 24px;color:#4c5752;font-size:14px;font-weight:700;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;bottom:17px;left:50%;width:0;height:2px;background:var(--orange);transition:.2s}
    .nav a:hover,.nav a.active{color:var(--green)}
    .nav a:hover:after,.nav a.active:after{width:20px;left:calc(50% - 10px)}
    .btn{min-height:46px;padding:11px 20px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:10px;font-weight:700;font-size:14px}
    .btn:after{content:"→";font-size:18px;line-height:1;transition:transform .2s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn:hover:after{transform:translateX(3px)}
    .btn-primary{color:#fff;background:var(--green)}
    .btn-primary:hover{background:#0f302a}
    .btn-outline{color:var(--green);border-color:#bfc7bd;background:transparent}
    .btn-outline:hover{background:var(--white);border-color:var(--green)}
    .btn-accent{color:#fff;background:var(--orange)}
    .btn-accent:hover{background:#bd6026}
    .header-action{min-width:116px}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--green);font-size:25px;padding:8px}
    .eyebrow{display:flex;align-items:center;gap:9px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.12em}
    .eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
    .section{padding:96px 0;position:relative}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:36px}
    .section-head h2{font-family:"Songti SC","STSong",serif;font-size:38px;letter-spacing:-.04em;line-height:1.2;margin:8px 0 0}
    .section-intro{max-width:470px;color:var(--muted);margin:0;font-size:15px}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;background:#e6ece6;color:var(--green);border-radius:999px;font-size:12px;font-weight:700;line-height:1.4}
    .tag.orange{color:#97481e;background:var(--soft-orange)}
    .page-head{padding:62px 0 54px;border-bottom:1px solid var(--line);background:#f1f0e9;position:relative;overflow:hidden}
    .page-head:after{content:"02";position:absolute;right:7%;bottom:-38px;font:160px/1 Georgia,serif;color:rgba(23,61,54,.06)}
    .crumb{color:var(--muted);font-size:13px;margin-bottom:25px}
    .crumb a:hover{color:var(--orange)}
    .page-head h1{position:relative;z-index:1;font:700 clamp(40px,5vw,64px)/1.1 "Songti SC","STSong",serif;letter-spacing:-.06em;margin:0 0 16px}
    .page-head p{position:relative;z-index:1;max-width:650px;color:var(--muted);font-size:17px;margin:0}
    .version-panel{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .version-main,.version-item{background:var(--white);padding:26px}
    .version-main strong{display:block;color:var(--green);font:700 42px/1.1 Georgia,serif;margin:8px 0}
    .version-main p,.version-item p{margin:0;color:var(--muted);font-size:14px}
    .version-item b{display:block;font-size:18px;margin:10px 0 4px}
    .version-item span{color:var(--muted);font-size:13px}
    .preview-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
    .device-stage{min-height:470px;border-radius:var(--radius-lg);background:var(--green);position:relative;overflow:hidden;padding:42px}
    .device-stage:before{content:"";position:absolute;width:350px;height:350px;border:1px solid rgba(255,255,255,.15);border-radius:50%;left:-100px;bottom:-160px}
    .phone{position:relative;width:238px;height:410px;margin:0 auto;background:#142b27;border:8px solid #d5d8ce;border-radius:31px;box-shadow:0 18px 30px rgba(0,0,0,.22);padding:18px 13px;color:#fff}
    .phone:before{content:"";position:absolute;width:70px;height:5px;background:#b6beb4;border-radius:5px;top:7px;left:76px}
    .phone-label{font-size:11px;color:#b9d0c2;margin-top:12px}
    .phone h3{font:24px/1.2 "Songti SC","STSong",serif;margin:20px 0}
    .phone-feature{height:125px;border-radius:13px;background:linear-gradient(135deg,#d97838,#a94b27);padding:15px}
    .phone-feature small{color:#f9dfc8}.phone-feature b{display:block;font-size:19px;line-height:1.25;margin-top:8px}
    .phone-row{display:flex;justify-content:space-between;padding:15px 2px;border-bottom:1px solid rgba(255,255,255,.16);font-size:12px}
    .interface-card{position:absolute;right:28px;bottom:38px;width:170px;padding:14px;background:var(--white);border-radius:14px;transform:rotate(5deg);box-shadow:var(--shadow)}
    .interface-card i{display:block;height:67px;border-radius:10px;background:var(--soft-orange);margin-bottom:10px}
    .interface-card b{font-size:14px}.interface-card small{display:block;color:var(--muted);font-size:11px}
    .preview-copy h2{font:700 42px/1.2 "Songti SC","STSong",serif;margin:12px 0 18px}
    .preview-copy>p{color:var(--muted);margin-bottom:25px}
    .check-list{padding:0;margin:0;list-style:none;display:grid;gap:12px}
    .check-list li{padding-left:28px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--orange);font-weight:700}
    .download-section{background:var(--white)}
    .download-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .download-card{padding:34px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);transition:.25s}
    .download-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .download-card h3{font-size:23px;margin:18px 0 8px}.download-card p{color:var(--muted);font-size:14px}
    .platform-icon{width:48px;height:48px;border-radius:14px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:700;font-size:20px}
    .download-card .btn{margin-top:14px}
    .notice{margin-top:24px;padding:18px 20px;border-left:3px solid var(--orange);background:var(--soft-orange);color:#704426;font-size:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
    .step{padding:28px 24px 8px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}.step-no{color:var(--orange);font:700 28px Georgia,serif}.step h3{font-size:18px;margin:12px 0 7px}.step p{font-size:14px;color:var(--muted);margin:0}
    .update-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .update-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:25px;min-height:210px}
    .update-card time{font-size:13px;color:var(--orange)}.update-card h3{font-size:20px;margin:15px 0 9px}.update-card p{font-size:14px;color:var(--muted);margin:0 0 18px}.text-link{color:var(--green);font-weight:700;font-size:14px}.text-link:hover{color:var(--orange)}
    .verify{background:var(--green);color:#f8f5ed}
    .verify-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:start}
    .verify h2{font:700 40px/1.2 "Songti SC","STSong",serif;margin:12px 0 16px}.verify p{color:#c4d2c9}
    .verify-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .verify-item{padding:22px;border:1px solid rgba(255,255,255,.18);border-radius:14px;background:rgba(255,255,255,.05)}
    .verify-item b{display:block;margin-bottom:5px}.verify-item span{font-size:13px;color:#c4d2c9}
    .faq-list{max-width:850px;margin:auto}.faq-item{border-top:1px solid var(--line)}.faq-question{width:100%;padding:21px 4px;background:none;border:0;display:flex;justify-content:space-between;text-align:left;color:var(--ink);font-weight:700}.faq-question span:last-child{color:var(--orange);font-size:22px}.faq-answer{display:none;padding:0 35px 20px 4px;color:var(--muted);font-size:15px}.faq-item.open .faq-answer{display:block}
    .closing{padding:70px 0}.closing-inner{padding:42px 50px;border-radius:var(--radius-lg);background:var(--soft-orange);display:flex;align-items:center;justify-content:space-between;gap:25px}.closing h2{font:700 34px/1.2 "Songti SC","STSong",serif;margin:8px 0}.closing p{color:#704426;margin:0}
    .footer{padding:68px 0 24px;background:#132f2b;color:#d8e1da}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:42px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.15)}.footer .brand-text strong{color:#fff}.footer .brand-text small{color:#aebdb3}.footer p{font-size:13px;color:#aebdb3;margin:20px 0}.footer h3{font-size:15px;color:#fff;margin:4px 0 16px}.footer-links{display:grid;gap:8px}.footer-links a{font-size:13px;color:#aebdb3}.footer-links a:hover{color:#f0b182}.footer-badge{display:inline-block;padding:4px 9px;margin-right:6px;border:1px solid rgba(255,255,255,.25);border-radius:5px;color:#d8e1da;font-size:11px}.copyright{display:flex;justify-content:space-between;gap:15px;padding-top:20px;color:#91a49a;font-size:12px}
    :focus-visible{outline:3px solid rgba(217,120,56,.45);outline-offset:3px}
    @media(max-width:1024px){.nav{gap:15px}.brand{min-width:190px}.version-panel{grid-template-columns:1fr 1fr}.version-main{grid-column:span 2}.preview-wrap,.verify-grid{gap:35px}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.update-list{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.nav{display:none;position:absolute;top:78px;left:0;right:0;padding:12px 20px 20px;background:var(--white);border-bottom:1px solid var(--line);flex-direction:column;gap:0;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 0}.nav a:after{bottom:5px;left:0!important}.header-action{display:none}.menu-toggle{display:block}.preview-wrap,.verify-grid{grid-template-columns:1fr}.section{padding:70px 0}.section-head{display:block}.section-head h2{font-size:32px;margin-bottom:12px}.device-stage{min-height:430px}.closing-inner{display:block;padding:32px 25px}.closing .btn{margin-top:20px}}
    @media(max-width:520px){.topline .container{justify-content:center;gap:10px}.topline span:last-child{display:none}.brand{min-width:0}.brand-text small{font-size:9px}.page-head{padding:45px 0}.page-head h1{font-size:42px}.version-panel,.download-grid,.update-list,.verify-list{grid-template-columns:1fr}.version-main{grid-column:auto}.version-main strong{font-size:36px}.device-stage{padding:28px 12px}.interface-card{right:8px;width:145px}.preview-copy h2,.verify h2{font-size:32px}.steps{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.footer-grid{grid-template-columns:1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:7px}.section-intro{font-size:14px}}

/* roulang page: category3 */
:root{
  --ink:#18211f;
  --green:#173d36;
  --green-2:#28574d;
  --orange:#d97838;
  --paper:#f7f5f0;
  --white:#fffdfa;
  --mist:#eef0e9;
  --line:#dfe2da;
  --muted:#69736e;
  --soft-orange:#f4e4d5;
  --rose:#f0dfd8;
  --shadow:0 16px 42px rgba(25,40,35,.09);
  --shadow-sm:0 8px 20px rgba(25,40,35,.07);
  --radius:16px;
  --radius-lg:26px;
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"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:color .2s ease,transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(217,120,56,.35);outline-offset:3px}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.topline{background:var(--green);color:#e7eee9;font-size:12px}
.topline .container{height:34px;display:flex;align-items:center;justify-content:flex-end;gap:22px}
.topline span{display:inline-flex;align-items:center;gap:7px}
.topline span:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--orange)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,250,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.brand{display:flex;align-items:center;gap:10px;min-width:225px}
.brand-mark{position:relative;width:34px;height:34px;border:1px solid var(--green);border-radius:50%;flex:0 0 auto}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:1px solid var(--orange)}
.brand-mark:before{width:16px;height:16px;left:6px;top:7px}
.brand-mark:after{width:5px;height:5px;right:4px;top:4px;background:var(--orange)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;letter-spacing:.04em;color:var(--green)}
.brand-text small{font-size:10px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
.nav{display:flex;align-items:center;justify-content:center;gap:26px}
.nav a{padding:28px 0 24px;color:#4c5752;font-size:14px;font-weight:700;position:relative;white-space:nowrap}
.nav a:after{content:"";position:absolute;bottom:17px;left:50%;width:0;height:2px;background:var(--orange);transition:.2s}
.nav a:hover,.nav a.active{color:var(--green)}
.nav a:hover:after,.nav a.active:after{width:20px;left:calc(50% - 10px)}
.header-action{min-width:116px}
.btn{min-height:46px;padding:11px 20px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:10px;font-weight:700;font-size:14px}
.btn:after{content:"→";font-size:18px;line-height:1;transition:transform .2s ease}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:hover:after{transform:translateX(3px)}
.btn-primary{color:#fff;background:var(--green)}
.btn-primary:hover{background:#0f302a;color:#fff}
.btn-outline{color:var(--green);border-color:#bfc7bd;background:transparent}
.btn-outline:hover{background:var(--white);border-color:var(--green)}
.btn-accent{color:#fff;background:var(--orange)}
.btn-accent:hover{color:#fff;background:#bd6026}
.menu-toggle{display:none;border:0;background:transparent;color:var(--green);font-size:25px;padding:8px}
.eyebrow{display:flex;align-items:center;gap:9px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.12em}
.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
.tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;background:#e6ece6;color:var(--green);border-radius:999px;font-size:12px;font-weight:700;line-height:1.4}
.tag.orange{color:#97481e;background:var(--soft-orange)}
.tag.rose{color:#874735;background:var(--rose)}
.section{padding:96px 0;position:relative}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:37px}
.section-head h2{font-family:"Songti SC","STSong",serif;font-size:38px;letter-spacing:-.04em;line-height:1.2;margin:8px 0 0}
.section-intro{max-width:460px;color:var(--muted);margin:0;font-size:15px}
.page-banner{position:relative;overflow:hidden;background:var(--white);border-bottom:1px solid var(--line);padding:45px 0 58px}
.page-banner:before{content:"03";position:absolute;right:6%;top:-72px;color:rgba(23,61,54,.055);font-family:Georgia,serif;font-size:230px;font-weight:700;line-height:1}
.page-banner:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(217,120,56,.28);border-radius:50%;right:15%;bottom:-285px}
.breadcrumb{position:relative;z-index:1;display:flex;align-items:center;gap:10px;margin-bottom:25px;color:var(--muted);font-size:13px}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb i{width:5px;height:5px;border-radius:50%;background:#b5bdb5}
.banner-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 330px;gap:40px;align-items:end}
.banner-grid h1{max-width:750px;margin:13px 0 12px;font-family:"Songti SC","STSong",serif;font-size:clamp(42px,5vw,63px);letter-spacing:-.065em;line-height:1.1}
.banner-grid p{max-width:670px;color:#56615c;font-size:17px;margin:0}
.banner-note{padding:20px 22px;border-left:2px solid var(--orange);background:#faf4ed;color:#59625d;font-size:14px}
.banner-note strong{display:block;color:var(--green);font-size:14px;margin-bottom:4px}
.service-scale{background:var(--green);color:#edf3ee;padding:35px 38px;border-radius:var(--radius-lg);box-shadow:var(--shadow);position:relative;overflow:hidden}
.service-scale:after{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-105px;top:-170px}
.scale-top{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;padding-bottom:23px;border-bottom:1px solid rgba(255,255,255,.17)}
.scale-top b{font-family:"Songti SC","STSong",serif;font-size:24px}
.scale-top span{font-size:12px;color:#cbd9cf}
.scale-list{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);margin-top:25px}
.scale-list div{min-height:71px;padding:1px 18px;border-left:1px solid rgba(255,255,255,.2)}
.scale-list div:first-child{border-left:0;padding-left:0}
.scale-list small{display:block;color:#b5c9bc;font-size:11px;letter-spacing:.08em}
.scale-list b{font-size:14px;color:#fff}
.privilege-stage{display:grid;grid-template-columns:.88fr 1.12fr;gap:52px;align-items:center}
.stage-copy h2{font-family:"Songti SC","STSong",serif;font-size:40px;line-height:1.22;letter-spacing:-.045em;margin:10px 0 18px}
.stage-copy p{color:var(--muted);margin:0 0 25px}
.service-points{list-style:none;padding:0;margin:0;display:grid;gap:13px}
.service-points li{display:flex;gap:13px;align-items:flex-start;color:#46514c;font-size:15px}
.service-points i{display:inline-flex;align-items:center;justify-content:center;width:23px;height:23px;flex:0 0 23px;border-radius:50%;background:var(--soft-orange);color:#9a4b21;font-style:normal;font-size:12px;font-weight:800}
.card-stack{position:relative;min-height:385px;padding:35px 16px 20px}
.member-card{position:absolute;width:min(100%,390px);min-height:258px;border-radius:20px;padding:27px 28px;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.member-card:before{content:"";position:absolute;width:175px;height:175px;border:1px solid rgba(217,120,56,.3);border-radius:50%;right:-54px;top:-70px}
.member-card:nth-child(1){left:10px;top:86px;transform:rotate(-5deg);background:#e8eee8}
.member-card:nth-child(2){right:1px;top:35px;transform:rotate(4deg);background:#f6e6d8}
.member-card:nth-child(3){left:50%;top:0;transform:translateX(-50%);background:var(--green);color:#fff}
.member-card .card-label{position:relative;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:11px;letter-spacing:.1em}
.member-card:nth-child(3) .card-label{color:#c9d8ce}
.member-card .card-name{position:relative;margin-top:51px;font-family:"Songti SC","STSong",serif;font-size:29px;line-height:1.1}
.member-card .card-line{position:relative;width:105px;height:1px;background:currentColor;opacity:.45;margin:18px 0 12px}
.member-card .card-foot{position:relative;font-size:12px;color:var(--muted)}
.member-card:nth-child(3) .card-foot{color:#d9e5dd}
.privilege-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.privilege-card{padding:26px 23px;min-height:245px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);position:relative;overflow:hidden}
.privilege-card:after{content:"";position:absolute;width:88px;height:88px;right:-28px;bottom:-35px;border:1px solid #d7ded5;border-radius:50%}
.privilege-card:hover{border-color:#aebbb0;transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.privilege-card .number{display:block;color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.1em}
.privilege-icon{margin:25px 0 20px;width:42px;height:42px;border-radius:12px;background:var(--mist);display:flex;align-items:center;justify-content:center;color:var(--green);font-size:20px;font-weight:700}
.privilege-card h3{font-family:"Songti SC","STSong",serif;font-size:22px;margin:0 0 9px}
.privilege-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.path-section{background:#eef0e9}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.path-grid:before{content:"";position:absolute;top:44px;left:9%;right:9%;height:1px;background:#bec9c0}
.path-item{padding:0 19px;position:relative}
.path-num{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:88px;height:88px;margin-bottom:23px;border:1px solid #b9c6bb;border-radius:50%;background:var(--paper);color:var(--green);font-family:Georgia,serif;font-size:25px}
.path-item h3{font-size:18px;margin:0 0 8px;color:var(--green)}
.path-item p{margin:0;color:var(--muted);font-size:14px}
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-card{display:flex;flex-direction:column;min-height:340px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden}
.article-card:hover{border-color:#aebbb0;box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.article-cover{height:142px;padding:17px;position:relative;overflow:hidden;background:#dbe4dc}
.article-cover:after{content:"";position:absolute;width:160px;height:160px;border:1px solid rgba(255,255,255,.6);border-radius:50%;right:-45px;bottom:-70px}
.article-cover.cover-orange{background:#ead1bf}
.article-cover.cover-paper{background:#e6e4da}
.article-cover .cover-symbol{position:relative;z-index:1;width:42px;height:42px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(23,61,54,.45);border-radius:50%;color:var(--green);font-family:Georgia,serif;font-size:18px}
.article-cover .tag{position:absolute;z-index:2;right:15px;top:15px}
.article-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1}
.article-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
.article-meta i{width:3px;height:3px;background:#a7b0a9;border-radius:50%}
.article-card h3{font-family:"Songti SC","STSong",serif;font-size:21px;letter-spacing:-.02em;line-height:1.35;margin:14px 0 10px}
.article-card h3 a:hover{color:var(--orange)}
.article-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.article-link{margin-top:auto;padding-top:16px;color:var(--green);font-size:13px;font-weight:800}
.article-link span{margin-left:6px;color:var(--orange);font-size:18px}
.list-more{display:flex;justify-content:center;margin-top:32px}
.rules-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px;align-items:start}
.rules-title{padding:31px 33px;background:var(--green);border-radius:var(--radius-lg);color:#fff;position:sticky;top:130px}
.rules-title h2{font-family:"Songti SC","STSong",serif;font-size:35px;line-height:1.22;margin:15px 0}
.rules-title p{color:#c9d9ce;font-size:15px;margin:0}
.rule-list{border-top:1px solid var(--line)}
.rule-row{display:grid;grid-template-columns:170px 1fr;gap:25px;padding:23px 6px;border-bottom:1px solid var(--line)}
.rule-row strong{font-size:15px;color:var(--green)}
.rule-row p{margin:0;color:var(--muted);font-size:14px}
.faq-feedback{display:grid;grid-template-columns:1.13fr .87fr;gap:52px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;border:0;background:none;padding:19px 0;display:flex;align-items:center;gap:16px;text-align:left;color:var(--ink);font-weight:700}
.faq-question b{color:var(--orange);font-size:12px;letter-spacing:.08em}
.faq-question span{margin-left:auto;color:var(--green);font-size:21px;font-weight:400}
.faq-answer{display:none;margin:0 0 20px 40px;padding:13px 16px;border-left:2px solid var(--orange);background:#fbf7f1;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span{transform:rotate(45deg)}
.feedback-box{padding:34px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--white)}
.feedback-box h3{font-family:"Songti SC","STSong",serif;font-size:29px;margin:9px 0 12px}
.feedback-box p{color:var(--muted);font-size:14px;margin:0 0 22px}
.feedback-info{margin:0 0 25px;padding:0;list-style:none}
.feedback-info li{padding:9px 0;border-top:1px solid var(--line);font-size:14px;color:#46524c}
.feedback-info li:last-child{border-bottom:1px solid var(--line)}
.feedback-info b{display:inline-block;width:82px;color:var(--green)}
.footer{background:#102e29;color:#d9e5de;padding:67px 0 23px}
.footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr 1fr;gap:46px;padding-bottom:47px}
.footer .brand{margin-bottom:19px}
.footer .brand-mark{border-color:#c6d8cb}
.footer .brand-text strong{color:#fff}
.footer .brand-text small{color:#afc1b5}
.footer p{color:#adc0b4;font-size:13px;line-height:1.8;margin:0 0 13px}
.footer h3{font-size:14px;color:#fff;margin:3px 0 15px}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:13px;color:#adc0b4}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-badge{display:inline-flex;margin:3px 7px 0 0;padding:4px 8px;border:1px solid rgba(225,238,228,.24);border-radius:999px;color:#c8d9cd;font-size:11px}
.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid rgba(230,240,232,.15);color:#91a89a;font-size:12px}
@media(max-width:1024px){
  .nav{gap:17px}
  .nav a{font-size:13px}
  .brand{min-width:205px}
  .privilege-cards{grid-template-columns:repeat(2,1fr)}
  .article-list{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-grid>div:last-child{grid-column:1/-1}
}
@media(max-width:768px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .topline .container{justify-content:center;gap:14px;font-size:11px}
  .topline span:last-child{display:none}
  .nav-wrap{height:69px}
  .nav{position:absolute;top:69px;left:0;right:0;display:none;align-items:stretch;flex-direction:column;gap:0;padding:10px 24px 18px;background:var(--white);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
  .nav.open{display:flex}
  .nav a{padding:12px 0;font-size:14px}
  .nav a:after{bottom:7px;left:0}
  .nav a:hover:after,.nav a.active:after{left:0;width:20px}
  .header-action{display:none}
  .menu-toggle{display:block}
  .page-banner{padding:35px 0 43px}
  .banner-grid{grid-template-columns:1fr;gap:23px}
  .banner-grid h1{font-size:46px}
  .section{padding:66px 0}
  .section-head{display:block;margin-bottom:29px}
  .section-intro{margin-top:15px}
  .service-scale{padding:28px 24px}
  .scale-list{grid-template-columns:repeat(2,1fr);gap:19px}
  .scale-list div:nth-child(3){border-left:0;padding-left:0}
  .privilege-stage,.rules-layout,.faq-feedback{grid-template-columns:1fr;gap:35px}
  .stage-copy h2{font-size:34px}
  .rules-title{position:static}
  .path-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .path-grid:before{display:none}
  .path-item{padding:0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:31px}
  .footer-grid>div:last-child{grid-column:auto}
}
@media(max-width:520px){
  body{font-size:15px}
  .container{width:min(calc(100% - 28px),var(--container))}
  .brand{min-width:0}
  .brand-text small{font-size:9px}
  .page-banner:before{font-size:165px;right:-18px;top:-49px}
  .banner-grid h1{font-size:38px}
  .banner-grid p{font-size:15px}
  .banner-note{padding:17px}
  .section{padding:54px 0}
  .section-head h2{font-size:31px}
  .service-scale{padding:23px 19px}
  .scale-top{display:block}
  .scale-top span{display:block;margin-top:4px}
  .scale-list{gap:17px;margin-top:20px}
  .scale-list div{min-height:55px;padding-left:12px}
  .card-stack{min-height:331px;margin:0 -5px;padding-top:25px}
  .member-card{min-height:223px;padding:21px}
  .member-card .card-name{margin-top:43px;font-size:24px}
  .member-card:nth-child(1){left:0;top:79px}
  .member-card:nth-child(2){right:0;top:42px}
  .privilege-cards,.article-list,.path-grid{grid-template-columns:1fr}
  .privilege-card{min-height:210px}
  .path-item{padding:18px 0;border-bottom:1px solid #ced5ce}
  .path-item:last-child{border-bottom:0}
  .path-num{width:65px;height:65px;margin-bottom:13px}
  .rule-row{grid-template-columns:1fr;gap:5px;padding:18px 0}
  .feedback-box{padding:26px 21px}
  .faq-answer{margin-left:0}
  .footer{padding-top:51px}
  .footer-grid{grid-template-columns:1fr;gap:25px}
  .copyright{display:block}
  .copyright span{display:block;margin:5px 0}
}

/* roulang page: category4 */
:root{
      --ink:#18211f;
      --green:#173d36;
      --green-2:#28574d;
      --orange:#d97838;
      --paper:#f7f5f0;
      --white:#fffdfa;
      --mist:#eef0e9;
      --line:#dfe2da;
      --muted:#69736e;
      --soft-orange:#f4e4d5;
      --soft-green:#e6ece6;
      --danger:#a65343;
      --shadow:0 16px 42px rgba(25,40,35,.09);
      --shadow-sm:0 8px 20px rgba(25,40,35,.07);
      --radius:16px;
      --radius-lg:26px;
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"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:color .2s ease,transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(217,120,56,.42);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .topline{background:var(--green);color:#e9eee8;font-size:12px}
    .topline .container{height:34px;display:flex;align-items:center;justify-content:flex-end;gap:22px}
    .topline span{display:inline-flex;align-items:center;gap:7px}
    .topline span:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--orange)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,250,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:10px;min-width:225px}
    .brand-mark{position:relative;width:34px;height:34px;border:1px solid var(--green);border-radius:50%;flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:1px solid var(--orange)}
    .brand-mark:before{width:16px;height:16px;left:6px;top:7px}
    .brand-mark:after{width:5px;height:5px;right:4px;top:4px;background:var(--orange)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:17px;letter-spacing:.04em;color:var(--green)}
    .brand-text small{font-size:10px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
    .nav{display:flex;align-items:center;justify-content:center;gap:26px}
    .nav a{padding:28px 0 24px;color:#4c5752;font-size:14px;font-weight:700;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;bottom:17px;left:50%;width:0;height:2px;background:var(--orange);transition:.2s}
    .nav a:hover,.nav a.active{color:var(--green)}
    .nav a:hover:after,.nav a.active:after{width:20px;left:calc(50% - 10px)}
    .header-action{min-width:116px}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--green);font-size:25px;padding:8px}
    .btn{min-height:46px;padding:11px 20px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:10px;font-weight:700;font-size:14px}
    .btn:after{content:"→";font-size:18px;line-height:1;transition:transform .2s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn:hover:after{transform:translateX(3px)}
    .btn-primary{color:#fff;background:var(--green)}
    .btn-primary:hover{background:#0f302a;color:#fff}
    .btn-outline{color:var(--green);border-color:#bfc7bd;background:transparent}
    .btn-outline:hover{background:var(--white);border-color:var(--green)}
    .btn-accent{color:#fff;background:var(--orange)}
    .btn-accent:hover{background:#bd6026;color:#fff}
    .section{padding:94px 0;position:relative}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:37px}
    .eyebrow{display:flex;align-items:center;gap:9px;color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.12em}
    .eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
    .section-head h2{font-family:"Songti SC","STSong",serif;font-size:clamp(30px,3vw,40px);letter-spacing:-.045em;line-height:1.22;margin:8px 0 0}
    .section-intro{max-width:450px;color:var(--muted);margin:0;font-size:15px}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;background:#e6ece6;color:var(--green);border-radius:999px;font-size:12px;font-weight:700;line-height:1.4}
    .tag.orange{color:#97481e;background:var(--soft-orange)}
    .tag.mist{background:#edf0e9;color:#53605a}
    .breadcrumb{padding:24px 0 15px;color:var(--muted);font-size:13px}
    .breadcrumb a:hover{color:var(--orange)}
    .breadcrumb span{padding:0 8px;color:#a0a8a2}
    .channel-hero{position:relative;overflow:hidden;padding:31px 0 68px;border-bottom:1px solid var(--line)}
    .channel-hero:before{content:"";position:absolute;right:-60px;top:-155px;width:480px;height:480px;border:1px solid rgba(23,61,54,.12);border-radius:50%}
    .channel-hero:after{content:"";position:absolute;right:65px;top:-44px;width:285px;height:285px;border:1px solid rgba(217,120,56,.25);border-radius:50%}
    .channel-top{position:relative;display:grid;grid-template-columns:1fr 310px;gap:50px;align-items:end}
    .channel-no{display:block;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.15em;margin-bottom:16px}
    .channel-hero h1{font-family:"Songti SC","STSong",serif;font-size:clamp(43px,5vw,62px);line-height:1.1;letter-spacing:-.065em;margin:0 0 18px;color:var(--green)}
    .channel-hero p{max-width:710px;margin:0;color:#52605a;font-size:17px}
    .channel-meta{position:relative;padding:24px;border:1px solid var(--line);background:rgba(255,253,250,.8);border-radius:var(--radius)}
    .channel-meta b{display:block;font-size:14px;color:var(--green);margin-bottom:13px}
    .channel-meta span{display:block;border-top:1px solid var(--line);padding:10px 0 0;margin-top:10px;font-size:13px;color:var(--muted)}
    .pathway{background:var(--white)}
    .pathway-grid{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .path-step{min-height:205px;padding:25px 23px 24px;border-left:1px solid var(--line);position:relative}
    .path-step:first-child{border-left:0}
    .path-step:after{content:"";position:absolute;right:-7px;top:46px;width:13px;height:13px;background:var(--orange);border:3px solid var(--white);border-radius:50%;z-index:2}
    .path-step:last-child:after{display:none}
    .step-num{display:block;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:30px}
    .path-step h3{font-size:19px;margin:0 0 9px;color:var(--green)}
    .path-step p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
    .guide-area{background:linear-gradient(180deg,var(--paper),#f1f1eb)}
    .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .guide-card{min-height:285px;padding:0;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 5px 16px rgba(25,40,35,.025);display:flex;flex-direction:column}
    .guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c8d0c6}
    .guide-cover{height:116px;position:relative;padding:15px;overflow:hidden}
    .guide-cover:before{content:"";position:absolute;width:136px;height:136px;border:1px solid rgba(255,255,255,.45);border-radius:50%;right:-27px;bottom:-67px}
    .guide-cover:after{content:"";position:absolute;width:45px;height:45px;border:1px solid rgba(255,255,255,.48);border-radius:50%;right:62px;top:19px}
    .cover-a{background:linear-gradient(125deg,#244d44,#173d36)}
    .cover-b{background:linear-gradient(125deg,#c96731,#e09a62)}
    .cover-c{background:linear-gradient(125deg,#536c63,#95a89f)}
    .cover-d{background:linear-gradient(125deg,#334039,#172b26)}
    .cover-e{background:linear-gradient(125deg,#bf7442,#7d4e32)}
    .cover-f{background:linear-gradient(125deg,#5f746b,#2d5147)}
    .cover-index{position:relative;z-index:1;color:rgba(255,255,255,.85);font-size:12px;font-weight:800;letter-spacing:.12em}
    .guide-body{padding:19px 19px 18px;display:flex;flex-direction:column;flex:1}
    .guide-body .tag{margin-bottom:10px}
    .guide-body h3{font-size:18px;line-height:1.4;margin:0 0 8px;color:var(--green)}
    .guide-body p{font-size:14px;color:var(--muted);line-height:1.65;margin:0 0 14px}
    .article-link{display:inline-flex;align-items:center;gap:7px;color:var(--green);font-size:13px;font-weight:800;margin-top:auto}
    .article-link:after{content:"→";font-size:17px;transition:transform .2s ease}
    .article-link:hover{color:var(--orange)}
    .article-link:hover:after{transform:translateX(3px)}
    .list-more{text-align:center;margin-top:30px}
    .setup-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:70px;align-items:center}
    .phone-stage{min-height:460px;display:flex;justify-content:center;align-items:center;position:relative;background:#e7ece5;border-radius:var(--radius-lg);overflow:hidden}
    .phone-stage:before{content:"";position:absolute;width:415px;height:415px;border:1px solid rgba(23,61,54,.18);border-radius:50%;top:35px;left:50%;transform:translateX(-50%)}
    .phone-stage:after{content:"";position:absolute;width:620px;height:620px;border:1px solid rgba(217,120,56,.22);border-radius:50%;bottom:-390px;left:50%;transform:translateX(-50%)}
    .device{position:relative;z-index:2;width:222px;height:397px;padding:13px 10px;border:7px solid #26332e;border-radius:31px;background:#19251f;box-shadow:0 19px 30px rgba(23,45,37,.23)}
    .device:before{content:"";position:absolute;width:70px;height:16px;border-radius:0 0 11px 11px;background:#19251f;top:-1px;left:50%;transform:translateX(-50%);z-index:4}
    .device-screen{height:100%;padding:27px 14px 14px;border-radius:20px;background:#f7f5f0;overflow:hidden}
    .device-label{font-size:9px;color:var(--orange);font-weight:800;letter-spacing:.1em}
    .device-title{font-family:"Songti SC","STSong",serif;font-size:21px;line-height:1.15;color:var(--green);margin:10px 0 15px}
    .device-banner{height:98px;border-radius:12px;padding:12px;background:var(--orange);color:#fff;position:relative;overflow:hidden}
    .device-banner:after{content:"";position:absolute;right:-31px;bottom:-40px;width:110px;height:110px;border-radius:50%;border:1px solid rgba(255,255,255,.55)}
    .device-banner b{position:relative;display:block;font-size:13px;line-height:1.3;max-width:92px}
    .device-list{margin-top:13px;display:grid;gap:8px}
    .device-list span{height:27px;padding:5px 7px;border-radius:6px;background:#e5ebe4;color:#506059;font-size:9px}
    .setup-content h2{font-family:"Songti SC","STSong",serif;font-size:clamp(31px,3.2vw,42px);line-height:1.2;letter-spacing:-.05em;margin:10px 0 16px}
    .setup-content>p{color:var(--muted);margin:0 0 26px;font-size:16px}
    .annotate-list{display:grid;gap:0;border-top:1px solid var(--line)}
    .annotate{display:grid;grid-template-columns:45px 1fr;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}
    .annotate strong{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;color:#fff;background:var(--green);font-size:12px}
    .annotate h3{font-size:16px;color:var(--green);margin:1px 0 3px}
    .annotate p{font-size:14px;color:var(--muted);line-height:1.65;margin:0}
    .verify-zone{background:var(--green);color:#f7f6f0;overflow:hidden}
    .verify-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;align-items:start}
    .verify-zone .eyebrow{color:#f0ad78}
    .verify-zone h2{font-family:"Songti SC","STSong",serif;font-size:clamp(31px,3.2vw,42px);line-height:1.2;letter-spacing:-.05em;margin:9px 0 16px}
    .verify-zone .lead{color:#cfdbd4;margin:0;font-size:16px;max-width:410px}
    .seal{width:106px;height:106px;margin-top:34px;border:1px solid rgba(255,255,255,.46);border-radius:50%;display:grid;place-items:center;position:relative;color:#f0ad78;font-size:31px}
    .seal:before{content:"";position:absolute;inset:8px;border:1px dashed rgba(240,173,120,.7);border-radius:50%}
    .verify-list{border-top:1px solid rgba(255,255,255,.22)}
    .verify-item{display:grid;grid-template-columns:42px 1fr;gap:17px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.18)}
    .verify-item i{width:28px;height:28px;display:grid;place-items:center;border:1px solid rgba(240,173,120,.7);border-radius:50%;font-style:normal;font-size:13px;color:#f0ad78}
    .verify-item h3{font-size:17px;margin:0 0 4px;color:#fff}
    .verify-item p{color:#cbd6d0;font-size:14px;margin:0;line-height:1.65}
    .quick-answer{background:var(--white)}
    .answers-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
    .answer-card{padding:23px 23px 21px;background:var(--paper);border:1px solid var(--line);border-radius:13px}
    .answer-card:hover{border-color:#bdc9bc;box-shadow:var(--shadow-sm)}
    .answer-card b{display:block;color:var(--orange);font-size:12px;letter-spacing:.1em;margin-bottom:9px}
    .answer-card h3{font-size:17px;line-height:1.45;color:var(--green);margin:0 0 7px}
    .answer-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
    .help-cta{padding:78px 0;background:#e9e8df}
    .help-inner{padding:42px 47px;border:1px solid #d1d4ca;border-radius:var(--radius-lg);background:var(--white);display:grid;grid-template-columns:1fr auto;gap:35px;align-items:center;position:relative;overflow:hidden}
    .help-inner:after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;border:1px solid rgba(217,120,56,.25);right:-100px;top:-175px}
    .help-copy{position:relative;z-index:1}
    .help-copy h2{font-family:"Songti SC","STSong",serif;font-size:36px;letter-spacing:-.05em;line-height:1.2;margin:8px 0 10px;color:var(--green)}
    .help-copy p{max-width:630px;color:var(--muted);margin:0}
    .help-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
    .footer{padding:66px 0 24px;background:#142f2a;color:#d9e1dc}
    .footer-grid{display:grid;grid-template-columns:1.45fr .85fr .85fr 1fr;gap:42px;padding-bottom:45px}
    .footer .brand{margin-bottom:16px}
    .footer .brand-text strong{color:#f9f7ef}
    .footer .brand-text small{color:#afbbb5}
    .footer .brand-mark{border-color:#d8e0db}
    .footer p{color:#afbbb5;font-size:14px;line-height:1.7;margin:0 0 14px;max-width:300px}
    .footer h3{color:#f5f5ee;font-size:14px;margin:0 0 16px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{font-size:14px;color:#afbbb5}
    .footer-links a:hover{color:#efad77}
    .footer-badge{display:inline-flex;padding:4px 8px;border:1px solid rgba(255,255,255,.22);border-radius:999px;margin-right:6px;color:#cbd7d0;font-size:11px}
    .copyright{padding-top:21px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#91a39b;font-size:12px}
    @media(max-width:1024px){
      .nav{gap:17px}
      .nav a{font-size:13px}
      .brand{min-width:190px}
      .channel-top{grid-template-columns:1fr 260px}
      .path-step{padding:22px 16px}
      .setup-grid,.verify-grid{gap:42px}
      .footer-grid{grid-template-columns:1.35fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:1/-1}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .topline .container{justify-content:center;gap:14px;font-size:11px}
      .topline span:last-child{display:none}
      .nav-wrap{height:68px}
      .brand{min-width:0}
      .nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 20px 18px;background:var(--white);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch;gap:0}
      .nav.open{display:flex}
      .nav a{padding:12px 6px}
      .nav a:after{bottom:7px;left:6px}
      .nav a:hover:after,.nav a.active:after{width:20px;left:6px}
      .header-action{display:none}
      .menu-toggle{display:block}
      .section{padding:67px 0}
      .section-head{align-items:flex-start;flex-direction:column;margin-bottom:29px;gap:15px}
      .channel-hero{padding-bottom:48px}
      .channel-top{grid-template-columns:1fr;gap:26px}
      .channel-meta{max-width:420px}
      .pathway-grid{grid-template-columns:1fr}
      .path-step{min-height:0;border-left:0;border-top:1px solid var(--line);padding:20px 16px 20px 72px}
      .path-step:first-child{border-top:0}
      .path-step:after{left:23px;top:auto;bottom:-7px;right:auto}
      .step-num{position:absolute;left:18px;top:21px;margin:0}
      .guide-grid{grid-template-columns:repeat(2,1fr)}
      .setup-grid,.verify-grid{grid-template-columns:1fr;gap:35px}
      .phone-stage{min-height:410px}
      .verify-zone{padding-top:68px;padding-bottom:68px}
      .help-inner{grid-template-columns:1fr;padding:34px 28px}
      .help-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
      .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/-1}
    }
    @media(max-width:520px){
      body{font-size:15px}
      .container{width:min(calc(100% - 28px),var(--container))}
      .brand-text small{font-size:9px}
      .channel-hero h1{font-size:39px}
      .channel-hero p{font-size:15px}
      .channel-meta{padding:19px}
      .guide-grid,.answers-grid{grid-template-columns:1fr}
      .guide-card{min-height:260px}
      .phone-stage{min-height:380px;border-radius:18px}
      .device{transform:scale(.9)}
      .section-head h2,.setup-content h2,.verify-zone h2{font-size:30px}
      .help-copy h2{font-size:29px}
      .help-actions{display:grid;grid-template-columns:1fr}
      .help-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:auto}
      .copyright{display:grid}
    }