/* roulang page: index */
:root{
  --ink:#173b35;
  --forest:#2e6257;
  --lime:#b9d66b;
  --paper:#f6f5f0;
  --sage:#eef2ea;
  --white:#fff;
  --text:#1b2825;
  --muted:#5f6d68;
  --soft:#89938f;
  --line:#dce4dd;
  --terracotta:#9a5d4c;
  --amber:#967740;
  --radius:18px;
  --radius-sm:11px;
  --shadow:0 16px 38px rgba(23,59,53,.08);
  --shadow-hover:0 20px 46px rgba(23,59,53,.14);
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
::selection{background:var(--lime);color:var(--ink)}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:92px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:34px}
.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--forest);font-size:13px;font-weight:700;letter-spacing:.12em}
.section-kicker:before{content:"";width:26px;height:2px;background:var(--lime)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(36px,4vw,50px);line-height:1.16;letter-spacing:-.045em;margin-bottom:22px}
h2{font-size:clamp(28px,3vw,35px);line-height:1.25;letter-spacing:-.035em;margin-bottom:13px}
h3{font-size:20px;line-height:1.4;margin-bottom:8px}
p{color:var(--muted)}
.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 18px;border-radius:10px;border:1px solid transparent;font-weight:700;transition:.2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(185,214,107,.65);outline-offset:3px}
.btn-primary{background:var(--ink);color:var(--white);box-shadow:0 8px 18px rgba(23,59,53,.17)}
.btn-primary:hover{background:var(--forest)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#c8e47d;box-shadow:0 10px 22px rgba(92,119,42,.18)}
.btn-outline{background:rgba(255,255,255,.7);color:var(--forest);border-color:var(--forest)}
.btn-outline:hover{background:var(--sage)}
.badge{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:99px;background:var(--sage);color:var(--forest);font-size:12px;font-weight:700;letter-spacing:.04em}
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.93);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,228,221,.9)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;min-width:0;font-weight:800;color:var(--ink)}
.brand-mark{width:35px;height:35px;flex:0 0 35px;border-radius:10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:16px;font-weight:900}
.brand-text{line-height:1.15;font-size:15px;white-space:nowrap}
.brand-text small{display:block;font-size:10px;color:var(--muted);font-weight:600;letter-spacing:.08em;margin-top:3px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:9px 11px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s}
.nav a:hover,.nav a.active{background:var(--sage);color:var(--ink)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;width:44px;height:44px;background:var(--white);border:1px solid var(--line);border-radius:10px;color:var(--ink)}
.hero{position:relative;overflow:hidden;padding:78px 0 62px;background:linear-gradient(118deg,#f6f5f0 0%,#f6f5f0 58%,#e9eee3 58%,#e9eee3 100%)}
.hero:after{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(46,98,87,.14);border-radius:50%;right:-120px;top:-140px}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:54px}
.hero-copy{max-width:620px}
.hero-copy p{font-size:18px;line-height:1.8;max-width:590px;margin-bottom:29px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-status{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.status-item{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;font-weight:700}
.status-dot{width:9px;height:9px;background:var(--lime);border:2px solid var(--forest);border-radius:50%}
.portal-stage{min-height:442px;position:relative}
.portal-card{position:absolute;border:1px solid rgba(46,98,87,.16);box-shadow:var(--shadow);background:rgba(255,255,255,.9)}
.portal-main{width:78%;right:3%;top:20px;border-radius:22px;padding:21px;background:var(--white)}
.portal-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:21px}
.portal-title{font-weight:800;font-size:16px}
.portal-menu{width:28px;height:7px;border-top:2px solid var(--forest);border-bottom:2px solid var(--forest)}
.screen-feature{height:151px;border-radius:15px;background:var(--ink);padding:22px;color:#fff;position:relative;overflow:hidden}
.screen-feature:after{content:"";position:absolute;width:190px;height:190px;right:-64px;bottom:-105px;border:24px solid rgba(185,214,107,.52);border-radius:50%}
.screen-feature small{color:#cddacf;position:relative;z-index:1}
.screen-feature strong{position:relative;z-index:1;display:block;margin-top:10px;font-size:24px;line-height:1.3}
.screen-list{display:grid;gap:11px;margin-top:15px}
.screen-line{display:flex;align-items:center;gap:10px;padding:10px;border-radius:11px;background:var(--sage)}
.screen-icon{width:27px;height:27px;border-radius:8px;background:var(--lime)}
.screen-line span{font-size:13px;font-weight:700;color:var(--forest)}
.float-note{left:0;bottom:31px;border-radius:14px;padding:15px 17px;min-width:180px}
.float-note b{display:block;font-size:14px;color:var(--ink)}
.float-note span{font-size:12px;color:var(--muted)}
.float-check{right:0;bottom:-4px;border-radius:13px;padding:13px 15px;color:var(--forest);font-size:13px;font-weight:800}
.float-check:before{content:"✓";display:inline-grid;place-items:center;margin-right:8px;width:21px;height:21px;border-radius:50%;background:var(--lime);color:var(--ink)}
.quick-strip{position:relative;margin-top:-1px;background:var(--ink);color:#fff}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.quick-item{min-height:113px;padding:23px 22px;border-right:1px solid rgba(255,255,255,.13);transition:.2s}
.quick-item:last-child{border-right:0}
.quick-item:hover{background:rgba(255,255,255,.07)}
.quick-item strong{display:block;font-size:16px}
.quick-item span{display:block;font-size:13px;color:#c4d0ca;margin-top:2px}
.quick-item i{float:right;color:var(--lime);font-style:normal;font-size:20px;margin-top:-32px}
.channel-grid{display:grid;grid-template-columns:1.16fr .84fr;gap:18px}
.channel-feature{min-height:238px;padding:31px;border-radius:var(--radius);position:relative;overflow:hidden;border:1px solid var(--line);background:var(--white);transition:.22s}
.channel-feature:hover,.channel-small:hover,.news-item:hover{transform:translateY(-3px);border-color:var(--forest);box-shadow:var(--shadow-hover)}
.channel-feature.download{background:var(--sage)}
.channel-feature .channel-symbol{position:absolute;right:26px;bottom:22px;font-size:58px;color:rgba(46,98,87,.16);font-weight:900}
.channel-feature p,.channel-small p{max-width:280px;font-size:14px;margin-bottom:0}
.channel-feature a,.channel-small a{display:inline-flex;margin-top:17px;color:var(--forest);font-size:14px;font-weight:800}
.channel-side{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.channel-small{padding:20px;border-radius:15px;background:var(--white);border:1px solid var(--line);transition:.22s}
.channel-small h3{font-size:17px}
.channel-small p{font-size:13px;line-height:1.65}
.news-section{background:var(--white)}
.news-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px}
.news-feature{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--sage);min-height:330px;display:flex;flex-direction:column;justify-content:flex-end}
.news-visual{height:112px;border-radius:13px;background:linear-gradient(135deg,var(--ink),var(--forest));margin-bottom:21px;position:relative;overflow:hidden}
.news-visual:after{content:"";position:absolute;right:18px;top:17px;width:62px;height:62px;border:12px solid var(--lime);border-radius:50%}
.news-feature h3{font-size:23px;margin:10px 0}
.news-feature p{font-size:14px;margin-bottom:16px}
.article-link{color:var(--forest);font-size:14px;font-weight:800}
.news-list{display:grid;gap:10px}
.news-item{display:grid;grid-template-columns:87px 1fr;gap:18px;padding:17px 0;border-bottom:1px solid var(--line);transition:.2s}
.news-item:last-child{border-bottom:0}
.news-date{font-size:12px;color:var(--soft);font-weight:700;padding-top:3px}
.news-item h3{font-size:17px;margin:8px 0 5px}
.news-item p{font-size:13px;line-height:1.65;margin-bottom:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-news{grid-column:1/-1;text-align:center;padding:48px 20px;border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);background:var(--paper)}
.timeline-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}
.timeline-intro{padding:26px;border-radius:var(--radius);background:var(--ink);color:var(--white)}
.timeline-intro h2{color:var(--white)}
.timeline-intro p{color:#cbd7d1}
.timeline{border-left:1px solid var(--line);padding-left:28px}
.timeline-item{position:relative;padding:0 0 25px}
.timeline-item:before{content:"";position:absolute;left:-35px;top:7px;width:12px;height:12px;background:var(--lime);border:3px solid var(--forest);border-radius:50%}
.timeline-item time{font-size:12px;color:var(--forest);font-weight:800}
.timeline-item h3{font-size:17px;margin:4px 0}
.timeline-item p{font-size:14px;margin:0}
.download-zone{background:var(--sage)}
.download-panel{border-radius:24px;background:#dfe8da;display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;padding:44px;overflow:hidden}
.device-stack{position:relative;min-height:340px}
.device{position:absolute;border-radius:26px;background:var(--ink);border:7px solid #274b44;box-shadow:0 20px 35px rgba(23,59,53,.2);padding:18px}
.device.one{width:176px;height:315px;left:8%;top:15px;transform:rotate(-8deg)}
.device.two{width:190px;height:338px;right:8%;top:0;transform:rotate(7deg);background:#f8f8f2}
.device-screen{height:100%;border-radius:15px;background:var(--sage);padding:15px}
.device.two .device-screen{background:var(--ink)}
.device-screen b{display:block;font-size:13px;color:var(--forest)}
.device.two .device-screen b{color:#fff}
.device-block{height:55px;border-radius:9px;background:var(--lime);margin:18px 0 10px}
.device-line{height:8px;border-radius:20px;background:#b7c7bd;margin:9px 0}
.download-copy p{max-width:545px}
.version-info{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.version-info span{font-size:12px;color:var(--forest);border:1px solid rgba(46,98,87,.22);padding:5px 9px;border-radius:7px;background:rgba(255,255,255,.5)}
.download-actions{display:flex;flex-wrap:wrap;gap:10px}
.qr-note{margin-top:18px;padding:12px 15px;border-left:3px solid var(--forest);font-size:13px;color:var(--muted);background:rgba(255,255,255,.45)}
.multi-track{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.multi-track:before{content:"";position:absolute;left:16%;right:16%;top:59px;height:1px;background:var(--line)}
.use-node{position:relative;padding:0 18px}
.node-icon{position:relative;z-index:1;width:120px;height:120px;margin-bottom:20px;display:grid;place-items:center;border-radius:32px;background:var(--white);border:1px solid var(--line);font-size:35px;color:var(--forest);box-shadow:var(--shadow)}
.use-node:nth-child(2) .node-icon{margin-left:auto;margin-right:auto;background:var(--sage)}
.use-node:nth-child(3) .node-icon{margin-left:auto}
.use-node p{font-size:14px;margin-bottom:0;max-width:260px}
.security{background:var(--ink);color:var(--white)}
.security-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:55px;align-items:center}
.security h2{color:#fff}
.security p{color:#cad8d2}
.security-list{list-style:none;margin:27px 0;padding:0;display:grid;gap:14px}
.security-list li{display:flex;gap:13px;color:#edf3ed;font-size:15px}
.security-list b{display:grid;place-items:center;width:27px;height:27px;flex:0 0 27px;border-radius:8px;background:var(--lime);color:var(--ink);font-size:12px}
.security-panel{background:#f4f6ef;color:var(--text);border-radius:18px;padding:26px;box-shadow:0 24px 48px rgba(0,0,0,.15)}
.panel-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:14px;border-bottom:1px solid var(--line);font-weight:800}
.panel-state{color:var(--forest);font-size:12px}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:17px 0;border-bottom:1px solid var(--line)}
.panel-row:last-child{border:0}
.panel-row span{font-size:14px;color:var(--muted)}
.toggle{width:41px;height:23px;border-radius:20px;background:var(--forest);padding:3px}
.toggle:after{content:"";display:block;width:17px;height:17px;border-radius:50%;background:var(--lime);margin-left:auto}
.steps{background:var(--white)}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.step{position:relative;padding:0 23px 0 0}
.step:not(:last-child):after{content:"";position:absolute;top:24px;right:0;width:43%;height:1px;background:var(--line)}
.step-num{width:49px;height:49px;display:grid;place-items:center;margin-bottom:18px;border-radius:50%;border:1px solid var(--forest);color:var(--forest);font-weight:900;background:var(--sage)}
.step h3{font-size:18px}
.step p{font-size:14px;max-width:205px}
.guide-layout{display:grid;grid-template-columns:290px 1fr;gap:42px}
.guide-index{border-left:2px solid var(--line);padding-left:19px}
.guide-index a{display:block;padding:9px 0;color:var(--muted);font-size:14px;font-weight:700}
.guide-index a:first-child{color:var(--forest)}
.guide-cards{display:grid;gap:12px}
.guide-card{padding:20px 22px;border-radius:14px;background:var(--white);border:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;transition:.2s}
.guide-card:hover{border-color:var(--forest);box-shadow:var(--shadow)}
.guide-card h3{font-size:17px;margin:0 0 4px}
.guide-card p{margin:0;font-size:14px}
.guide-arrow{font-size:23px;color:var(--forest)}
.status-band{padding:0 0 92px}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white)}
.status-box{padding:27px;border-right:1px solid var(--line)}
.status-box:last-child{border:0}
.status-box strong{display:block;font-size:23px;color:var(--forest);line-height:1.25}
.status-box span{display:block;margin-top:7px;color:var(--muted);font-size:13px}
.faq-section{background:var(--sage)}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:64px}
.faq-side p{font-size:16px}
.faq-list{display:grid;gap:10px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;padding:17px 18px;border:0;background:transparent;color:var(--text);font-weight:800;text-align:left}
.faq-question span:last-child{font-size:22px;color:var(--forest);line-height:1}
.faq-answer{display:none;padding:0 18px 18px;color:var(--muted);font-size:14px;line-height:1.75}
.faq-item.open{background:#f8faf6;border-color:var(--forest)}
.faq-item.open .faq-answer{display:block}
.support-box{display:grid;grid-template-columns:.8fr 1.2fr;border-radius:23px;overflow:hidden;background:var(--white);box-shadow:var(--shadow)}
.support-info{padding:40px;background:var(--ink);color:#fff}
.support-info h2{color:#fff}
.support-info p{color:#c7d4ce}
.support-meta{margin-top:30px;display:grid;gap:13px}
.support-meta div{padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.16);font-size:14px;color:#edf4ed}
.support-form{padding:38px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--muted);font-weight:700}
.field em{font-style:normal;color:var(--terracotta)}
.field input,.field select,.field textarea{width:100%;min-height:48px;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--text);transition:.2s}
.field textarea{min-height:105px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--forest);box-shadow:0 0 0 3px rgba(46,98,87,.13)}
.form-note{display:flex;align-items:flex-start;gap:8px;margin:15px 0;font-size:12px;color:var(--muted)}
.form-note input{margin-top:4px;accent-color:var(--forest)}
.form-message{display:none;margin-top:13px;padding:11px 13px;border-radius:9px;background:var(--sage);color:var(--forest);font-size:14px;font-weight:700}
.site-footer{background:var(--ink);color:#fff;padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.25fr .85fr 1fr;gap:42px;padding-bottom:38px}
.footer-brand p{color:#bfcec5;font-size:14px;max-width:370px}
.footer-heading{font-size:14px;color:var(--lime);font-weight:800;letter-spacing:.08em;margin-bottom:14px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#d8e2dc;font-size:14px;transition:.2s}
.footer-links a:hover{color:var(--lime)}
.footer-qr{display:flex;gap:15px;align-items:center}
.qr-placeholder{width:74px;height:74px;padding:8px;background:#f6f5f0;border-radius:9px;display:grid;grid-template-columns:repeat(4,1fr);gap:3px}
.qr-placeholder i{background:var(--ink);border-radius:1px}
.footer-qr span{font-size:13px;color:#c0cec7;line-height:1.65}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:#afbeb6;font-size:12px}
@media(max-width:1024px){
  .nav{gap:0}.nav a{padding:8px}.nav-action{display:none}
  .hero-grid,.download-panel,.security-grid,.faq-layout{gap:34px}
  .channel-grid{grid-template-columns:1fr}.channel-feature{min-height:200px}
  .step{padding-right:13px}.step:not(:last-child):after{width:26%}
}
@media(max-width:768px){
  .container{width:min(100% - 36px,var(--max))}
  .section{padding:62px 0}.section-head{display:block;margin-bottom:27px}
  .section-head .btn{margin-top:12px}
  .nav{display:none}.menu-toggle{display:grid;place-items:center}
  .nav.open{display:flex;position:absolute;top:76px;left:0;right:0;padding:14px 18px 18px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
  .nav.open a{padding:12px}
  .hero{padding:55px 0 45px;background:var(--paper)}
  .hero-grid,.news-layout,.timeline-wrap,.download-panel,.security-grid,.guide-layout,.faq-layout,.support-box{grid-template-columns:1fr}
  .hero-copy p{font-size:16px}.portal-stage{min-height:380px}
  .quick-grid{grid-template-columns:1fr 1fr}.quick-item:nth-child(2){border-right:0}.quick-item:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.13)}
  .channel-side{grid-template-columns:1fr 1fr}
  .timeline-wrap{gap:24px}.timeline-intro{padding:23px}
  .download-panel{padding:26px}.device-stack{min-height:294px}
  .device.one{left:14%;width:151px;height:275px}.device.two{right:14%;width:160px;height:286px}
  .multi-track{grid-template-columns:1fr;gap:30px}.multi-track:before{left:59px;top:80px;bottom:80px;width:1px;height:auto}.use-node,.use-node:nth-child(2) .node-icon,.use-node:nth-child(3) .node-icon{padding-left:0;margin-left:0;margin-right:0}.node-icon{width:105px;height:105px}
  .step-grid{grid-template-columns:1fr 1fr;gap:28px}.step:not(:last-child):after{display:none}
  .guide-layout{gap:20px}.guide-index{display:flex;overflow:auto;gap:18px;border-left:0;border-bottom:1px solid var(--line);padding:0 0 9px}.guide-index a{white-space:nowrap}
  .status-grid{grid-template-columns:1fr 1fr}.status-box:nth-child(2){border-right:0}.status-box:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .support-info,.support-form{padding:29px}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
  h1{font-size:33px}.brand-text{font-size:13px}.brand-text small{font-size:9px}
  .hero-actions .btn{width:100%}.portal-main{width:88%;right:0}.float-note{left:0}.float-check{right:0}
  .quick-item{padding:18px 14px}.channel-side,.form-grid{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr;gap:5px}.news-date{padding:0}.news-feature{padding:22px}
  .download-actions .btn{width:100%}.device.one{left:5%}.device.two{right:4%}
  .step-grid,.status-grid{grid-template-columns:1fr}.status-box,.status-box:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.status-box:last-child{border-bottom:0}
  .guide-card{padding:17px}.footer-grid{grid-template-columns:1fr;gap:29px}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
}

/* roulang page: article */
:root{
  --ink:#173b35;--forest:#2e6257;--lime:#b9d66b;--paper:#f6f5f0;--sage:#eef2ea;--white:#fff;
  --text:#1b2825;--muted:#5f6d68;--soft:#89938f;--line:#dce4dd;--terracotta:#9a5d4c;
  --radius:18px;--radius-sm:11px;--shadow:0 16px 38px rgba(23,59,53,.08);--shadow-hover:0 20px 46px rgba(23,59,53,.14);--max:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,228,221,.9)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;min-width:0;font-weight:800;color:var(--ink)}
.brand-mark{width:35px;height:35px;flex:0 0 35px;border-radius:10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:16px;font-weight:900}
.brand-text{line-height:1.15;font-size:15px;white-space:nowrap}
.brand-text small{display:block;font-size:10px;color:var(--muted);font-weight:600;letter-spacing:.08em;margin-top:3px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:9px 11px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s}
.nav a:hover,.nav a.active{background:var(--sage);color:var(--ink)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink)}
.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font-weight:700;transition:.2s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--ink);color:var(--white);box-shadow:0 8px 18px rgba(23,59,53,.17)}
.btn-primary:hover{background:var(--forest)}
.btn-outline{background:var(--white);color:var(--forest);border-color:var(--forest)}
.btn-outline:hover{background:var(--sage)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#c8e47d}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(185,214,107,.7);outline-offset:3px}
.article-hero{padding:62px 0 44px;border-bottom:1px solid var(--line);background:linear-gradient(135deg,#f6f5f0 0%,#f6f5f0 68%,#e8eee4 100%)}
.breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:var(--soft);font-size:13px}
.breadcrumb a{color:var(--forest);font-weight:700}
.breadcrumb b{font-weight:500;color:#a1aaa5}
.article-head{max-width:890px;padding-top:25px}
.badge{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:99px;background:var(--sage);color:var(--forest);font-size:12px;font-weight:800;letter-spacing:.05em}
h1,h2,h3,p{margin-top:0}
h1{max-width:900px;margin:18px 0 18px;font-size:clamp(34px,4vw,46px);line-height:1.22;letter-spacing:-.03em;font-weight:800}
h2{font-size:clamp(26px,3vw,33px);line-height:1.3;font-weight:800;letter-spacing:-.02em}
h3{font-size:19px;line-height:1.45;font-weight:800}
.article-summary{max-width:790px;color:var(--muted);font-size:17px;line-height:1.85}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:25px;color:var(--muted);font-size:14px}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block}
.section{padding:58px 0}
.info-strip{margin-top:-1px;background:var(--white);border-bottom:1px solid var(--line)}
.info-strip-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.info-list{display:flex;flex-wrap:wrap;gap:9px 22px;color:var(--muted);font-size:14px}
.share-tools{display:flex;gap:8px}
.icon-btn{height:38px;padding:0 12px;border:1px solid var(--line);border-radius:9px;background:var(--white);color:var(--forest);font-size:13px;font-weight:700;transition:.2s}
.icon-btn:hover{border-color:var(--forest);background:var(--sage)}
.reading-layout{display:grid;grid-template-columns:240px minmax(0,800px);justify-content:center;gap:42px;align-items:start}
.toc-panel{position:sticky;top:98px;border:1px solid var(--line);border-radius:var(--radius);padding:21px;background:var(--white)}
.toc-panel strong{display:block;margin-bottom:10px;font-size:14px}
.toc-panel a{display:block;padding:7px 0;color:var(--muted);font-size:14px;border-bottom:1px solid #edf0ec;transition:.2s}
.toc-panel a:last-child{border-bottom:0}
.toc-panel a:hover{color:var(--forest);padding-left:4px}
.guide-card{padding:26px 28px;border-radius:var(--radius);background:var(--sage);border:1px solid #d6e1d4;margin-bottom:30px}
.guide-card .guide-title{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:var(--ink)}
.guide-mark{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;background:var(--ink);color:var(--lime);font-size:13px}
.guide-card p{margin:12px 0 0;color:var(--muted);font-size:15px}
.article-content{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:42px 48px;box-shadow:0 8px 26px rgba(23,59,53,.035)}
.article-content>*:last-child{margin-bottom:0}
.article-content h2{margin:42px 0 18px;padding-top:8px;color:var(--ink)}
.article-content h2:first-child{margin-top:0}
.article-content h3{margin:29px 0 12px}
.article-content p{margin-bottom:20px;color:#33423e}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 22px}
.article-content li{padding-left:4px;margin-bottom:9px}
.article-content blockquote{margin:26px 0;padding:17px 20px;border-left:4px solid var(--lime);background:var(--sage);color:var(--forest);font-weight:600}
.article-content table{width:100%;border-collapse:collapse;margin:25px 0;display:block;overflow-x:auto}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);white-space:nowrap;text-align:left}
.article-content th{background:var(--sage);color:var(--ink)}
.article-content img{margin:28px auto;border-radius:12px;border:1px solid var(--line)}
.article-content a{color:var(--forest);font-weight:700;text-decoration:underline;text-underline-offset:3px}
.notice-section{padding-top:10px}
.notice-box{max-width:800px;margin:0 auto;padding:27px 30px;border:1px solid #d8e2ce;border-radius:var(--radius);background:#f1f5e9;display:grid;grid-template-columns:48px 1fr;gap:17px}
.notice-icon{width:48px;height:48px;border-radius:14px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:22px;font-weight:800}
.notice-box h2{font-size:20px;margin-bottom:8px}
.notice-box p{margin:0;color:var(--muted);font-size:15px}
.resource-card{max-width:800px;margin:0 auto;padding:25px 28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);display:flex;align-items:center;justify-content:space-between;gap:22px}
.resource-meta{display:flex;align-items:center;gap:15px}
.file-icon{width:44px;height:52px;border-radius:10px;background:var(--sage);color:var(--forest);display:grid;place-items:center;font-size:12px;font-weight:900}
.resource-meta p{margin:3px 0 0;color:var(--muted);font-size:14px}
.related{background:var(--sage);border-top:1px solid #dce5d9;border-bottom:1px solid #dce5d9}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:27px}
.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--forest);font-size:13px;font-weight:800;letter-spacing:.12em}
.section-kicker:before{content:"";width:26px;height:2px;background:var(--lime)}
.section-head h2{margin:7px 0 0}
.related-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:17px}
.related-main,.related-stack a{display:block;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:.22s}
.related-main{min-height:226px;padding:29px;position:relative;overflow:hidden}
.related-main:after{content:"";position:absolute;right:-28px;bottom:-74px;width:168px;height:168px;border:25px solid rgba(185,214,107,.55);border-radius:50%}
.related-main>*{position:relative;z-index:1}
.related-main h3{max-width:430px;margin:11px 0 9px;font-size:23px}
.related-main p,.related-stack p{margin:0;color:var(--muted);font-size:14px}
.related-time{display:block;margin-top:15px;color:var(--soft);font-size:13px}
.related-stack{display:grid;gap:17px}
.related-stack a{padding:20px 22px}
.related-stack h3{margin:8px 0 5px;font-size:17px}
.related-main:hover,.related-stack a:hover{transform:translateY(-3px);border-color:var(--forest);box-shadow:var(--shadow-hover)}
.return-panel{padding:42px 0 78px}
.return-inner{padding:30px 34px;border-radius:var(--radius);background:var(--ink);color:var(--white);display:flex;align-items:center;justify-content:space-between;gap:24px}
.return-inner h2{font-size:24px;margin:0 0 6px}
.return-inner p{margin:0;color:#cbd8d1;font-size:15px}
.return-actions{display:flex;flex-wrap:wrap;gap:10px}
.return-inner .btn-outline{background:transparent;color:#fff;border-color:#94b4aa}
.return-inner .btn-outline:hover{background:rgba(255,255,255,.1)}
.site-footer{background:var(--ink);color:#dce8df;padding:58px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr;gap:48px;padding-bottom:44px}
.footer-brand p{max-width:340px;margin:18px 0 0;color:#b9c9c0;font-size:14px}
.footer-heading{color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:15px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#d8e2dc;font-size:14px;transition:.2s}
.footer-links a:hover{color:var(--lime);padding-left:3px}
.footer-qr{display:flex;align-items:center;gap:15px;color:#c8d5ce;font-size:13px;line-height:1.6}
.qr-placeholder{width:72px;height:72px;padding:8px;display:grid;grid-template-columns:repeat(4,1fr);gap:3px;background:#fff;border-radius:8px}
.qr-placeholder i{background:var(--ink);display:block}
.qr-placeholder i:nth-child(3n),.qr-placeholder i:nth-child(5n){background:var(--lime)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.13);min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:#9dafA6;font-size:12px}
@media(max-width:1024px){
  .nav{gap:1px}.nav a{padding:8px 8px}.reading-layout{grid-template-columns:190px minmax(0,1fr);gap:25px}
  .article-content{padding:34px}.footer-grid{gap:28px}
}
@media(max-width:768px){
  .container{width:min(var(--max),calc(100% - 32px))}.nav-wrap{height:68px}.menu-toggle{display:grid;place-items:center}
  .nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
  .nav.open{display:flex}.nav a{padding:11px 12px}.nav-action{display:none}
  .article-hero{padding:40px 0 32px}h1{font-size:34px}.article-summary{font-size:16px}
  .info-strip-inner{padding:14px 0;align-items:flex-start;flex-direction:column}.reading-layout{display:block}.toc-panel{position:static;margin-bottom:18px}
  .toc-panel nav{display:grid;grid-template-columns:1fr 1fr;gap:0 15px}.article-content{padding:27px 21px}.section{padding:44px 0}
  .notice-box{padding:22px;grid-template-columns:1fr}.resource-card{padding:22px;align-items:flex-start;flex-direction:column}
  .related-grid{grid-template-columns:1fr}.return-inner{padding:27px;align-items:flex-start;flex-direction:column}.return-actions{width:100%}.return-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:30px}.footer-bottom{padding:16px 0;align-items:flex-start;flex-direction:column}
}
@media(max-width:520px){
  body{font-size:15px}.brand-text{font-size:14px}.article-meta{gap:7px 14px}.share-tools{width:100%}.icon-btn{flex:1}
  .toc-panel nav{grid-template-columns:1fr}.article-content h2{font-size:25px}.related-main{padding:23px;min-height:200px}.related-main h3{font-size:20px}
  .return-actions{flex-direction:column}.return-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
      --ink:#173b35;
      --forest:#2e6257;
      --lime:#b9d66b;
      --paper:#f6f5f0;
      --sage:#eef2ea;
      --white:#fff;
      --text:#1b2825;
      --muted:#5f6d68;
      --soft:#89938f;
      --line:#dce4dd;
      --terracotta:#9a5d4c;
      --amber:#967740;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 16px 38px rgba(23,59,53,.08);
      --shadow-hover:0 20px 46px rgba(23,59,53,.14);
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--forest)}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{color:var(--ink);letter-spacing:-.03em}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px}
    .section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--forest);font-size:13px;font-weight:800;letter-spacing:.12em}
    .section-kicker:before{content:"";width:26px;height:2px;background:var(--lime)}
    .section-head h2{font-size:32px;margin:9px 0 0}
    .section-head p{color:var(--muted);max-width:540px;margin:8px 0 0;font-size:15px}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 18px;border-radius:10px;border:1px solid transparent;font-weight:700;transition:.2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(185,214,107,.65);outline-offset:3px}
    .btn-primary{background:var(--ink);color:var(--white);box-shadow:0 8px 18px rgba(23,59,53,.17)}
    .btn-primary:hover{background:var(--forest);color:#fff}
    .btn-lime{background:var(--lime);color:var(--ink)}
    .btn-lime:hover{background:#c8e47d;box-shadow:0 10px 22px rgba(92,119,42,.18)}
    .btn-outline{background:rgba(255,255,255,.7);color:var(--forest);border-color:var(--forest)}
    .btn-outline:hover{background:var(--sage)}
    .badge{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:99px;background:var(--sage);color:var(--forest);font-size:12px;font-weight:700;letter-spacing:.04em}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.93);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,228,221,.9)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0;font-weight:800;color:var(--ink)}
    .brand-mark{width:35px;height:35px;flex:0 0 35px;border-radius:10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:16px;font-weight:900}
    .brand-text{line-height:1.15;font-size:15px;white-space:nowrap}
    .brand-text small{display:block;font-size:10px;color:var(--muted);font-weight:600;letter-spacing:.08em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px}
    .nav a{padding:9px 11px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s}
    .nav a:hover,.nav a.active{background:var(--sage);color:var(--ink)}
    .nav-action{white-space:nowrap}
    .menu-toggle{display:none;width:44px;height:44px;background:var(--white);border:1px solid var(--line);border-radius:10px;color:var(--ink)}
    .page-intro{padding:62px 0 54px;background:#fff;border-bottom:1px solid var(--line)}
    .crumbs{display:flex;align-items:center;gap:9px;color:var(--soft);font-size:13px;margin-bottom:22px}
    .crumbs a{color:var(--forest);font-weight:700}
    .intro-grid{display:grid;grid-template-columns:1fr 330px;gap:48px;align-items:end}
    .page-intro h1{font-size:clamp(34px,5vw,48px);line-height:1.2;margin:10px 0 15px}
    .page-intro p{color:var(--muted);font-size:17px;max-width:700px;margin:0}
    .intro-note{border-left:3px solid var(--lime);padding:16px 20px;background:var(--sage);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--forest)}
    .intro-note strong{display:block;color:var(--ink);font-size:25px;line-height:1.25}
    .intro-note span{font-size:13px}
    .featured{padding:72px 0 42px}
    .feature-card{display:grid;grid-template-columns:.9fr 1.1fr;min-height:310px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white);box-shadow:var(--shadow)}
    .feature-visual{background:var(--ink);position:relative;padding:30px;color:#fff;display:flex;align-items:flex-end;overflow:hidden}
    .feature-visual:before,.feature-visual:after{content:"";position:absolute;border:1px solid rgba(185,214,107,.35);border-radius:50%}
    .feature-visual:before{width:280px;height:280px;right:-90px;top:-70px}
    .feature-visual:after{width:150px;height:150px;left:-60px;bottom:-72px}
    .visual-label{position:relative;z-index:1}
    .visual-label small{color:#cad8d0;display:block;margin-bottom:8px}
    .visual-label strong{font-size:28px;line-height:1.3;display:block}
    .feature-copy{padding:38px 42px;display:flex;flex-direction:column;justify-content:center}
    .feature-copy h2{font-size:27px;line-height:1.4;margin:16px 0 12px}
    .feature-copy p{color:var(--muted);margin-bottom:20px}
    .meta{display:flex;align-items:center;flex-wrap:wrap;gap:13px;color:var(--soft);font-size:13px}
    .meta time{color:var(--muted);font-weight:600}
    .list-section{background:#fff;padding:52px 0 88px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:112px 1fr auto;gap:22px;align-items:center;padding:24px 4px;border-bottom:1px solid var(--line);transition:.2s}
    .news-item:hover{padding-left:10px;padding-right:10px;background:var(--sage)}
    .news-date{color:var(--forest);font-weight:800;font-size:14px}
    .news-body h3{font-size:20px;margin:7px 0 4px;line-height:1.45}
    .news-body p{margin:0;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .news-arrow{font-size:23px;color:var(--forest);transition:.2s}
    .news-item:hover .news-arrow{transform:translateX(4px)}
    .empty-state{padding:40px;text-align:center;color:var(--soft);border:1px dashed var(--line);border-radius:var(--radius);margin-top:25px;background:var(--paper)}
    .empty-state span{font-size:30px;display:block;color:var(--forest);margin-bottom:6px}
    .notice-section{background:var(--sage)}
    .notice-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
    .notice-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 26px}
    .notice-row{display:flex;gap:18px;align-items:flex-start;padding:20px 0;border-bottom:1px solid var(--line)}
    .notice-row:last-child{border-bottom:0}
    .notice-row time{min-width:76px;color:var(--forest);font-size:13px;font-weight:800}
    .notice-row strong{display:block;color:var(--ink);font-size:16px}
    .notice-row span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
    .notice-side{background:var(--ink);color:#fff;border-radius:var(--radius);padding:32px;position:relative;overflow:hidden}
    .notice-side:after{content:"◎";position:absolute;right:22px;bottom:-26px;font-size:145px;color:rgba(185,214,107,.18)}
    .notice-side h3{color:#fff;font-size:24px;margin:0 0 15px}
    .notice-side p{color:#c6d3cd;font-size:14px;max-width:310px}
    .activity-section{background:#fff}
    .activity-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:18px}
    .activity-main,.activity-card{border:1px solid var(--line);border-radius:var(--radius);padding:30px;background:var(--paper)}
    .activity-main{background:var(--lime);min-height:230px}
    .activity-main h3,.activity-card h3{font-size:23px;margin:16px 0 8px}
    .activity-main p,.activity-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .activity-main p{color:var(--ink)}
    .activity-stack{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .timeline-section{background:var(--paper)}
    .timeline{position:relative;max-width:900px;margin:0 auto;padding-left:30px}
    .timeline:before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:var(--line)}
    .timeline-item{position:relative;padding:0 0 28px 26px}
    .timeline-item:before{content:"";position:absolute;left:-30px;top:9px;width:13px;height:13px;border-radius:50%;background:var(--lime);border:3px solid var(--paper);box-shadow:0 0 0 1px var(--forest)}
    .timeline-item time{font-size:13px;color:var(--forest);font-weight:800}
    .timeline-item h3{font-size:18px;margin:5px 0}
    .timeline-item p{font-size:14px;color:var(--muted);margin:0}
    .feedback-section{padding:78px 0;background:var(--sage)}
    .feedback-box{display:grid;grid-template-columns:.75fr 1.25fr;gap:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
    .feedback-copy h2{font-size:29px;margin:10px 0 12px}
    .feedback-copy p{color:var(--muted);font-size:15px}
    .feedback-points{display:grid;gap:10px;margin-top:23px}
    .feedback-points div{display:flex;gap:10px;color:var(--forest);font-size:14px;font-weight:700}
    .feedback-points b{color:var(--lime);font-size:18px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-group{display:grid;gap:6px}
    .form-group.full{grid-column:1/-1}
    label{font-size:13px;color:var(--muted);font-weight:700}
    input,select,textarea{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:11px 13px;color:var(--text);min-height:48px}
    textarea{min-height:112px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--forest);outline:0;box-shadow:0 0 0 3px rgba(46,98,87,.1)}
    .form-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px}
    .privacy{color:var(--soft);font-size:12px}
    .site-footer{background:var(--ink);color:#d9e2dc;padding:58px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .7fr 1fr;gap:52px}
    .footer-brand .brand{margin-bottom:17px}
    .footer-brand p{color:#b8c8c0;font-size:14px;max-width:330px}
    .footer-heading{color:var(--lime);font-weight:800;font-size:14px;margin-bottom:16px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#c9d6cf;font-size:14px}
    .footer-links a:hover{color:var(--lime)}
    .footer-qr{display:flex;align-items:center;gap:15px;color:#b8c8c0;font-size:13px}
    .qr-placeholder{width:72px;height:72px;background:#fff;padding:7px;display:grid;grid-template-columns:repeat(4,1fr);gap:3px;border-radius:7px}
    .qr-placeholder i{background:var(--ink);display:block}
    .qr-placeholder i:nth-child(2n){background:var(--forest)}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.14);padding-top:18px;margin-top:42px;color:#99aaa2;font-size:12px}
    @media(max-width:1024px){
      .nav{gap:0}.nav a{padding:8px 8px;font-size:13px}
      .intro-grid{grid-template-columns:1fr 270px}
      .feature-copy{padding:30px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 36px))}
      .section{padding:64px 0}
      .nav-action{display:none}
      .menu-toggle{display:block}
      .nav{display:none;position:absolute;left:18px;right:18px;top:68px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .nav a{padding:12px 14px}
      .nav-wrap{height:68px}
      .intro-grid,.feature-card,.notice-grid,.activity-grid,.feedback-box{grid-template-columns:1fr}
      .intro-note{margin-top:16px}
      .feature-visual{min-height:190px}
      .news-item{grid-template-columns:1fr auto;gap:8px 14px}
      .news-date{grid-column:1/-1}
      .news-body h3{font-size:18px}
      .news-arrow{grid-column:2;grid-row:2}
      .activity-stack{grid-template-columns:1fr}
      .feedback-box{padding:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:6px}
    }
    @media(max-width:520px){
      .page-intro{padding:45px 0 40px}
      .page-intro h1{font-size:34px}
      .section-head{display:block}
      .section-head h2{font-size:27px}
      .feature-copy h2{font-size:23px}
      .notice-list{padding:4px 18px}
      .notice-row{display:block}
      .notice-row time{display:block;margin-bottom:4px}
      .form-grid{grid-template-columns:1fr}
      .form-group.full{grid-column:auto}
      .form-foot{display:block}
      .form-foot .btn{width:100%;margin-top:14px}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category2 */
:root{
      --ink:#173b35;
      --forest:#2e6257;
      --lime:#b9d66b;
      --paper:#f6f5f0;
      --sage:#eef2ea;
      --white:#fff;
      --text:#1b2825;
      --muted:#5f6d68;
      --soft:#89938f;
      --line:#dce4dd;
      --terracotta:#9a5d4c;
      --amber:#967740;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 16px 38px rgba(23,59,53,.08);
      --shadow-hover:0 20px 46px rgba(23,59,53,.14);
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(32px,4vw,46px);line-height:1.2;letter-spacing:-.035em;font-weight:800;margin-bottom:18px}
    h2{font-size:clamp(27px,3vw,34px);line-height:1.3;letter-spacing:-.025em;font-weight:800;margin-bottom:12px}
    h3{font-size:19px;line-height:1.45;font-weight:750}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:34px}
    .section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--forest);font-size:13px;font-weight:750;letter-spacing:.12em;margin-bottom:12px}
    .section-kicker:before{content:"";width:26px;height:2px;background:var(--lime)}
    .section-intro{color:var(--muted);max-width:650px;margin-bottom:0}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 18px;border-radius:10px;border:1px solid transparent;font-weight:700;transition:.2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(185,214,107,.65);outline-offset:3px}
    .btn-primary{background:var(--ink);color:#fff;box-shadow:0 8px 18px rgba(23,59,53,.17)}
    .btn-primary:hover{background:var(--forest);color:#fff}
    .btn-lime{background:var(--lime);color:var(--ink)}
    .btn-lime:hover{background:#c8e47d;box-shadow:0 10px 22px rgba(92,119,42,.18)}
    .btn-outline{background:rgba(255,255,255,.7);color:var(--forest);border-color:var(--forest)}
    .btn-outline:hover{background:var(--sage)}
    .badge{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:99px;background:var(--sage);color:var(--forest);font-size:12px;font-weight:700;letter-spacing:.04em}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,228,221,.9)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:11px;min-width:0;font-weight:800;color:var(--ink)}
    .brand-mark{width:35px;height:35px;flex:0 0 35px;border-radius:10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:16px;font-weight:900}
    .brand-text{line-height:1.15;font-size:15px;white-space:nowrap}
    .brand-text small{display:block;font-size:10px;color:var(--muted);font-weight:600;letter-spacing:.08em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px}
    .nav a{padding:9px 11px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s}
    .nav a:hover,.nav a.active{background:var(--sage);color:var(--ink)}
    .nav-action{white-space:nowrap}
    .menu-toggle{display:none;width:44px;height:44px;background:var(--white);border:1px solid var(--line);border-radius:10px;color:var(--ink)}
    .page-head{padding:62px 0 55px;background:var(--white);border-bottom:1px solid var(--line)}
    .crumbs{display:flex;gap:9px;align-items:center;color:var(--soft);font-size:13px;margin-bottom:22px}
    .crumbs a:hover{color:var(--forest)}
    .crumbs span{color:#b2bbb6}
    .head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
    .head-copy{max-width:750px}
    .head-copy p{color:var(--muted);font-size:17px;margin:0}
    .line-icon{width:82px;height:82px;border:1px solid var(--line);border-radius:22px;background:var(--sage);display:grid;place-items:center;color:var(--forest);position:relative}
    .line-icon:before{content:"";width:30px;height:48px;border:2px solid currentColor;border-radius:8px}
    .line-icon:after{content:"";position:absolute;width:13px;height:3px;border-radius:3px;background:currentColor;bottom:22px}
    .version-section{background:var(--paper)}
    .version-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .version-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:29px;box-shadow:var(--shadow);transition:.22s}
    .version-card:hover{transform:translateY(-3px);border-color:var(--forest);box-shadow:var(--shadow-hover)}
    .version-card.secondary{background:var(--sage)}
    .version-top{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;margin-bottom:24px}
    .platform{display:flex;align-items:center;gap:13px}
    .platform-icon{width:43px;height:43px;border-radius:13px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:850;font-size:14px}
    .platform h3{margin:0}
    .platform small{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .download-box{display:grid;grid-template-columns:1fr 104px;gap:24px;align-items:end}
    .meta-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 20px;margin-bottom:23px}
    .meta-list dt{font-size:12px;color:var(--soft);margin-bottom:2px}
    .meta-list dd{margin:0;font-size:14px;font-weight:700;color:var(--text)}
    .qr-placeholder{width:92px;height:92px;padding:8px;background:#fff;border:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);gap:3px}
    .qr-placeholder i{background:var(--ink);display:block}
    .qr-placeholder i:nth-child(2n),.qr-placeholder i:nth-child(5),.qr-placeholder i:nth-child(10){background:var(--lime)}
    .download-note{font-size:12px;color:var(--muted);margin:12px 0 0}
    .backup-card{grid-column:1 / -1;background:var(--ink);color:#fff;border-radius:var(--radius);padding:27px 30px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .backup-card p{color:#cad7d0;font-size:14px;margin:5px 0 0}
    .steps-section{background:var(--white)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:28px 24px 30px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step-number{color:var(--forest);font-size:14px;font-weight:850;letter-spacing:.1em;margin-bottom:21px}
    .step h3{margin-bottom:8px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .compat-section{background:var(--sage)}
    .compat-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}
    .compat-panel,.device-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
    .compat-panel p{color:var(--muted)}
    .device-tags{display:flex;flex-wrap:wrap;gap:9px;margin:25px 0}
    .device-tag{padding:9px 13px;border:1px solid var(--line);border-radius:10px;color:var(--forest);font-size:14px;font-weight:700;background:var(--paper)}
    .compat-note{font-size:13px;color:var(--soft);border-left:3px solid var(--lime);padding-left:13px}
    .device-panel{display:flex;align-items:center;justify-content:center;gap:28px;min-height:250px}
    .device{border:2px solid var(--forest);border-radius:17px;padding:8px;background:var(--paper);position:relative}
    .device:before{content:"";display:block;background:var(--forest);border-radius:5px;width:24px;height:3px;margin:0 auto 9px}
    .device-screen{border-radius:10px;background:var(--white);height:124px;width:74px;padding:12px 8px}
    .device-screen b,.device-screen span{display:block;height:7px;border-radius:4px;background:var(--line);margin-bottom:9px}
    .device-screen b{height:28px;background:var(--lime)}
    .device.tablet .device-screen{width:126px;height:91px}
    .device.tablet{border-radius:14px}
    .verify-section{background:var(--paper)}
    .verify-box{background:var(--sage);border:1px solid var(--line);border-radius:var(--radius);padding:32px;display:grid;grid-template-columns:1fr .85fr;gap:35px;align-items:center}
    .verify-box p{color:var(--muted);margin-bottom:18px}
    .verify-list{display:grid;gap:11px;margin:0;padding:0;list-style:none}
    .verify-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px}
    .verify-list li:before{content:"✓";width:21px;height:21px;flex:0 0 21px;border-radius:50%;background:var(--lime);color:var(--ink);font-size:13px;font-weight:900;text-align:center;line-height:21px}
    .notice-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:24px}
    .notice-card strong{display:block;color:var(--forest);margin-bottom:9px}
    .notice-card p{font-size:14px;margin:0;color:var(--muted)}
    .faq-section{background:var(--white)}
    .faq-wrap{max-width:850px}
    .faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:11px;overflow:hidden;background:var(--white)}
    .faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:750;display:flex;justify-content:space-between;gap:20px;align-items:center}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:22px;color:var(--forest);font-weight:400}
    .faq-item[open] summary{background:var(--sage);color:var(--ink)}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 22px 19px;color:var(--muted);font-size:14px;background:var(--sage)}
    .support-link{margin-top:25px;color:var(--forest);font-weight:750}
    .updates-section{background:var(--ink);color:#fff}
    .updates-section .section-kicker{color:var(--lime)}
    .updates-section .section-kicker:before{background:var(--lime)}
    .updates-section .section-intro{color:#c8d5ce}
    .timeline{position:relative;margin-top:34px;padding-left:25px}
    .timeline:before{content:"";position:absolute;left:5px;top:7px;bottom:8px;width:1px;background:rgba(185,214,107,.45)}
    .update-item{position:relative;padding:0 0 27px 28px;display:grid;grid-template-columns:145px 1fr;gap:22px}
    .update-item:last-child{padding-bottom:0}
    .update-item:before{content:"";position:absolute;left:-25px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(185,214,107,.12)}
    .update-date{color:var(--lime);font-size:14px;font-weight:750}
    .update-content{border-bottom:1px solid rgba(255,255,255,.15);padding-bottom:20px}
    .update-item:last-child .update-content{border-bottom:0}
    .update-content h3{margin:0 0 5px}
    .update-content p{margin:0;color:#c8d5ce;font-size:14px}
    .site-footer{background:var(--ink);color:#eef3ed;border-top:1px solid rgba(255,255,255,.08);padding-top:60px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:43px}
    .footer-brand p{color:#bdcbc3;max-width:350px;font-size:14px;margin:19px 0 0}
    .footer-heading{font-weight:750;margin-bottom:16px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#bdcbc3;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-qr{display:flex;align-items:center;gap:14px;color:#bdcbc3;font-size:13px}
    .footer-qr .qr-placeholder{width:72px;height:72px;background:#fff;padding:6px}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:19px 0 23px;display:flex;justify-content:space-between;gap:20px;color:#9eafa5;font-size:12px}
    @media(max-width:1024px){
      .nav{gap:0}
      .nav a{padding:9px 8px}
      .download-box{grid-template-columns:1fr}
      .download-box .qr-placeholder{display:none}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 36px))}
      .nav-wrap{height:68px}
      .nav{display:none;position:absolute;left:18px;right:18px;top:76px;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .nav a{padding:12px 14px}
      .menu-toggle{display:block}
      .nav-action{display:none}
      .page-head{padding:45px 0 42px}
      .head-row{align-items:flex-start}
      .line-icon{width:66px;height:66px;flex:0 0 66px}
      .section{padding:65px 0}
      .section-head{display:block;margin-bottom:25px}
      .section-intro{margin-top:8px}
      .version-grid,.compat-grid,.verify-box{grid-template-columns:1fr}
      .backup-card{display:block}
      .backup-card .btn{margin-top:20px;width:100%}
      .steps{grid-template-columns:1fr;border-bottom:0}
      .step{border-right:0;border-bottom:1px solid var(--line);padding:22px 0}
      .step:last-child{border-bottom:0}
      .step-number{margin-bottom:8px}
      .device-panel{min-height:220px}
      .verify-box{padding:24px}
      .update-item{grid-template-columns:1fr;gap:3px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1 / -1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}
      h1{font-size:32px}
      .head-row{gap:16px}
      .head-copy p{font-size:15px}
      .version-card{padding:22px}
      .meta-list{gap:12px}
      .device-panel{gap:12px;padding:20px}
      .device.tablet .device-screen{width:105px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }

/* roulang page: category3 */
:root{
  --ink:#173b35;--forest:#2e6257;--lime:#b9d66b;--paper:#f6f5f0;--sage:#eef2ea;--white:#fff;
  --text:#1b2825;--muted:#5f6d68;--soft:#89938f;--line:#dce4dd;--terracotta:#9a5d4c;--amber:#967740;
  --radius:18px;--radius-sm:11px;--shadow:0 16px 38px rgba(23,59,53,.08);--shadow-hover:0 20px 46px rgba(23,59,53,.14);--max:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
.section-head h2{margin:7px 0 0;font-size:31px;line-height:1.25;letter-spacing:-.03em}
.section-head p{margin:0;max-width:460px;color:var(--muted);font-size:15px}
.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--forest);font-size:13px;font-weight:800;letter-spacing:.11em}
.section-kicker:before{content:"";width:26px;height:2px;background:var(--lime)}
.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:10px 18px;border-radius:10px;border:1px solid transparent;font-weight:750;transition:.2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{outline:3px solid rgba(185,214,107,.7);outline-offset:3px}
.btn-primary{background:var(--ink);color:var(--white);box-shadow:0 8px 18px rgba(23,59,53,.16)}
.btn-primary:hover{background:var(--forest)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#cae480;box-shadow:0 10px 22px rgba(92,119,42,.18)}
.btn-outline{background:var(--white);border-color:var(--forest);color:var(--forest)}
.btn-outline:hover{background:var(--sage)}
.badge{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:99px;background:var(--sage);color:var(--forest);font-size:12px;font-weight:800;letter-spacing:.04em}
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,240,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,228,221,.92)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;min-width:0;font-weight:800;color:var(--ink)}
.brand-mark{width:35px;height:35px;flex:0 0 35px;border-radius:10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:16px;font-weight:900}
.brand-text{line-height:1.15;font-size:15px;white-space:nowrap}
.brand-text small{display:block;font-size:10px;color:var(--muted);font-weight:600;letter-spacing:.08em;margin-top:3px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:9px 11px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:700;transition:.2s}
.nav a:hover,.nav a.active{background:var(--sage);color:var(--ink)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;width:44px;height:44px;background:var(--white);border:1px solid var(--line);border-radius:10px;color:var(--ink);font-size:20px}
.page-head{padding:59px 0 52px;background:linear-gradient(120deg,#f6f5f0 0%,#f6f5f0 67%,#eaf0e6 67%,#eaf0e6 100%);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:18px;color:var(--soft);font-size:13px}
.breadcrumb span{color:var(--forest)}
.page-title-row{display:flex;justify-content:space-between;align-items:end;gap:36px}
.page-title-row h1{max-width:760px;margin:11px 0 12px;font-size:44px;line-height:1.18;letter-spacing:-.045em;color:var(--ink)}
.page-title-row p{max-width:720px;margin:0;color:var(--muted);font-size:17px}
.shield-line{width:135px;height:135px;border:1px solid rgba(46,98,87,.22);border-radius:37px;background:rgba(255,255,255,.68);display:grid;place-items:center;position:relative;overflow:hidden}
.shield-line:after{content:"";position:absolute;width:92px;height:92px;border:1px solid rgba(185,214,107,.75);border-radius:26px;transform:rotate(24deg)}
.shield-icon{position:relative;z-index:1;width:52px;height:62px;border:3px solid var(--forest);border-radius:24px 24px 30px 30px;display:grid;place-items:center;color:var(--forest);font-size:25px;font-weight:900}
.safety-list{display:grid;grid-template-columns:1.02fr .98fr;gap:20px}
.safety-intro{padding:35px;border-radius:var(--radius);background:var(--ink);color:var(--white);position:relative;overflow:hidden}
.safety-intro:after{content:"";position:absolute;right:-90px;bottom:-135px;width:300px;height:300px;border:35px solid rgba(185,214,107,.19);border-radius:50%}
.safety-intro h2{position:relative;z-index:1;margin:13px 0 12px;font-size:29px;line-height:1.3}
.safety-intro p{position:relative;z-index:1;margin:0;color:#cfdbd5}
.number-list{display:grid;gap:12px}
.number-item{display:grid;grid-template-columns:47px 1fr;gap:15px;padding:19px 20px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.2s}
.number-item:hover{transform:translateY(-3px);border-color:var(--forest);box-shadow:var(--shadow)}
.number{width:34px;height:34px;border-radius:10px;background:var(--sage);display:grid;place-items:center;color:var(--forest);font-size:13px;font-weight:900}
.number-item h3{margin:0 0 3px;font-size:17px}
.number-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.68}
.identify-section{background:var(--white)}
.identify-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px}
.identify-card{border:1px solid var(--line);background:var(--paper);border-radius:var(--radius);padding:30px}
.identify-card h3{font-size:22px;margin:0 0 21px}
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:15px}
.check-list li{padding-left:28px;position:relative;color:var(--muted);font-size:15px}
.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--forest);font-weight:900}
.domain-panel{background:var(--ink);border-radius:var(--radius);padding:30px;color:var(--white);position:relative;overflow:hidden}
.domain-panel:before{content:"01";position:absolute;right:20px;top:-33px;font-size:115px;font-weight:900;color:rgba(185,214,107,.14)}
.domain-panel h3,.domain-panel p,.domain-panel .domain-box{position:relative;z-index:1}
.domain-panel h3{font-size:22px;margin:0 0 10px}
.domain-panel p{color:#cad6d0;margin:0 0 20px;font-size:14px}
.domain-box{padding:15px 16px;border:1px solid rgba(185,214,107,.48);border-radius:11px;background:rgba(255,255,255,.07);color:var(--lime);font-weight:800;letter-spacing:.04em}
.account-wrap{display:grid;grid-template-columns:.88fr 1.12fr;gap:34px;align-items:center}
.account-copy h2{margin:9px 0 13px;font-size:31px;line-height:1.28}
.account-copy>p{color:var(--muted);margin-bottom:21px}
.action-list{margin:0 0 26px;padding:0;list-style:none;display:grid;gap:10px}
.action-list li{padding:11px 13px;background:var(--white);border:1px solid var(--line);border-radius:10px;font-size:14px}
.action-list strong{color:var(--forest)}
.settings-demo{min-height:360px;padding:25px;border:1px solid var(--line);border-radius:22px;background:var(--sage);box-shadow:var(--shadow);position:relative}
.settings-demo:before{content:"";position:absolute;width:115px;height:115px;right:22px;top:20px;border-radius:50%;border:1px solid rgba(46,98,87,.18)}
.demo-window{position:relative;z-index:1;padding:22px;background:var(--white);border-radius:15px;border:1px solid rgba(46,98,87,.13)}
.demo-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;font-weight:800}
.demo-dot{display:flex;gap:5px}
.demo-dot i{display:block;width:7px;height:7px;border-radius:50%;background:var(--lime)}
.setting-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-top:1px solid var(--line);font-size:14px}
.setting-row small{display:block;color:var(--soft);margin-top:2px}
.switch{width:39px;height:22px;border-radius:20px;background:var(--forest);padding:3px;flex:0 0 auto}
.switch:after{content:"";display:block;width:16px;height:16px;border-radius:50%;background:#fff;margin-left:auto}
.file-section{background:var(--sage)}
.file-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px}
.file-card,.verify-panel{padding:28px;border-radius:var(--radius);border:1px solid var(--line);background:var(--white)}
.file-top{display:flex;align-items:center;gap:14px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.file-icon{width:48px;height:55px;border-radius:10px 10px 17px 10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:18px;font-weight:900}
.file-top h3{margin:0;font-size:20px}
.file-top p{margin:2px 0 0;color:var(--soft);font-size:13px}
.file-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:19px}
.file-meta div{padding:11px;border-radius:10px;background:var(--paper)}
.file-meta span{display:block;color:var(--soft);font-size:12px}
.file-meta strong{display:block;margin-top:2px;font-size:14px}
.verify-panel{background:var(--ink);color:#fff}
.verify-panel h3{margin:0 0 15px;font-size:22px}
.verify-panel p{color:#cfdbd5;font-size:14px}
.verify-panel ul{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:11px}
.verify-panel li{padding-left:23px;position:relative;color:#e5ebe6;font-size:14px}
.verify-panel li:before{content:"";width:8px;height:8px;position:absolute;left:0;top:9px;border-radius:50%;background:var(--lime)}
.flow-section{background:var(--white)}
.flow-board{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:linear-gradient(135deg,#fff,#f5f8f2);position:relative;overflow:hidden}
.flow-board:after{content:"";position:absolute;inset:auto -70px -100px auto;width:240px;height:240px;border-radius:50%;border:1px solid rgba(46,98,87,.13)}
.flow-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.flow-node{min-height:183px;padding:19px 19px 19px 24px;position:relative;border-right:1px solid var(--line)}
.flow-node:last-child{border-right:0}
.flow-node:not(:last-child):after{content:"→";position:absolute;right:-9px;top:50%;transform:translateY(-50%);width:18px;height:18px;line-height:18px;text-align:center;border-radius:50%;background:var(--lime);color:var(--ink);font-size:12px;font-weight:900}
.flow-code{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--ink);color:var(--lime);font-size:12px;font-weight:900}
.flow-node h3{margin:15px 0 7px;font-size:18px}
.flow-node p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.faq-section{padding-bottom:102px}
.faq-grid{display:grid;grid-template-columns:.76fr 1.24fr;gap:54px;align-items:start}
.faq-copy{padding:15px 0}
.faq-copy h2{margin:8px 0 13px;font-size:31px;line-height:1.3}
.faq-copy p{margin:0;color:var(--muted)}
.faq-list{display:grid;gap:10px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:var(--white);overflow:hidden}
.faq-question{width:100%;border:0;background:transparent;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;color:var(--text);font-weight:800}
.faq-question span:last-child{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;color:var(--forest);background:var(--sage);font-size:20px;font-weight:400;transition:.2s}
.faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.75}
.faq-item.open{border-color:rgba(46,98,87,.42);background:var(--sage)}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg);background:var(--ink);color:var(--lime)}
.feedback-strip{margin-top:45px;padding:27px 30px;background:var(--ink);color:var(--white);border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:24px}
.feedback-strip h3{margin:0 0 3px;font-size:20px}
.feedback-strip p{margin:0;color:#cdd8d2;font-size:14px}
.site-footer{background:var(--ink);color:#fff;padding:62px 0 0}
.footer-grid{display:grid;grid-template-columns:1.28fr .7fr .86fr;gap:54px;padding-bottom:44px}
.footer-brand p{max-width:330px;margin:17px 0 0;color:#c9d5cf;font-size:14px;line-height:1.8}
.footer-heading{margin:4px 0 14px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.08em}
.footer-links{display:grid;gap:7px}
.footer-links a{color:#d9e2dc;font-size:14px;transition:.2s}
.footer-links a:hover{color:var(--lime);transform:translateX(3px)}
.footer-qr{display:flex;align-items:center;gap:13px;color:#d6dfd9;font-size:13px;line-height:1.6}
.qr-placeholder{width:72px;height:72px;flex:0 0 72px;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:3px;padding:7px;background:#fff;border-radius:7px}
.qr-placeholder i{background:var(--ink)}
.qr-placeholder i:nth-child(2n){background:var(--lime)}
.qr-placeholder i:nth-child(3n){opacity:.25}
.footer-bottom{padding:18px 0;border-top:1px solid rgba(255,255,255,.15);display:flex;justify-content:space-between;gap:20px;color:#b6c6be;font-size:12px}
@media (max-width:1024px){
  .nav-wrap{gap:12px}.nav a{padding:8px 8px;font-size:13px}.nav-action{padding-left:13px;padding-right:13px}
  .page-title-row h1{font-size:39px}.safety-list,.identify-grid,.account-wrap,.file-grid,.faq-grid{gap:20px}
  .footer-grid{gap:30px}
}
@media (max-width:768px){
  body{font-size:15px}.container{width:min(var(--max),calc(100% - 32px))}.section{padding:62px 0}
  .nav-wrap{height:68px;position:relative}.menu-toggle{display:grid;place-items:center;margin-left:auto}
  .nav{display:none;position:absolute;top:60px;left:0;right:0;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
  .nav.open{display:flex}.nav a{padding:12px}.nav-action{display:none}
  .page-head{padding:43px 0}.page-title-row{align-items:flex-start}.page-title-row h1{font-size:34px}.page-title-row p{font-size:16px}.shield-line{display:none}
  .section-head{display:block;margin-bottom:25px}.section-head p{margin-top:11px}.section-head h2{font-size:27px}
  .safety-list,.identify-grid,.account-wrap,.file-grid,.faq-grid{grid-template-columns:1fr}
  .safety-intro{padding:28px}.settings-demo{min-height:315px}.flow-grid{grid-template-columns:1fr 1fr}.flow-node{border-bottom:1px solid var(--line)}.flow-node:nth-child(2){border-right:0}.flow-node:nth-child(3),.flow-node:nth-child(4){border-bottom:0}.flow-node:nth-child(2):after{display:none}.flow-node:not(:last-child):after{right:-9px}.feedback-strip{display:block;padding:25px}.feedback-strip .btn{margin-top:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block}.footer-bottom span+span{margin-top:5px}
}
@media (max-width:520px){
  .brand-text{font-size:14px}.page-title-row h1{font-size:30px}.page-title-row p{font-size:15px}
  .number-item{padding:16px}.identify-card,.domain-panel,.file-card,.verify-panel{padding:22px}.file-meta{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}.flow-node,.flow-node:nth-child(2){border-right:0}.flow-node:nth-child(3){border-bottom:1px solid var(--line)}.flow-node:not(:last-child):after{content:"↓";top:auto;bottom:-9px;right:50%;transform:translateX(50%)}.flow-node{min-height:auto}
  .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.btn{width:100%}
}