/* roulang page: index */
:root{
  --pine:#123c35;
  --pine-deep:#0b2925;
  --pine-soft:#e7f0eb;
  --amber:#e6a34b;
  --amber-light:#f7d49a;
  --ink:#19312d;
  --muted:#6d7d77;
  --paper:#f6f5ef;
  --white:#fffdf8;
  --line:#dbe3dc;
  --shadow:0 18px 45px rgba(18,60,53,.10);
  --shadow-sm:0 8px 24px rgba(18,60,53,.07);
  --radius:14px;
  --max:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,245,239,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,227,220,.85)}
.navbar{height:78px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:.02em;color:var(--pine);white-space:nowrap}
.brand-mark{width:35px;height:35px;border-radius:10px;background:var(--pine);position:relative;display:grid;place-items:center;color:var(--amber);font-size:17px}
.brand-mark:after{content:"";width:13px;height:13px;border:2px solid var(--amber);transform:rotate(45deg);position:absolute}
.nav-links{display:flex;align-items:center;gap:5px;flex:1}
.nav-links a{padding:9px 13px;border-radius:8px;color:#52645e;font-size:14px;transition:.2s}
.nav-links a:hover,.nav-links a:focus,.nav-links a.active{color:var(--pine);background:var(--pine-soft)}
.nav-links a.active{font-weight:700;position:relative}
.nav-links a.active:after{content:"";position:absolute;bottom:3px;left:13px;right:13px;height:2px;background:var(--amber)}
.nav-cta{background:var(--amber);padding:11px 18px;border-radius:9px;font-weight:700;color:#2e291e;font-size:14px;transition:.2s}
.nav-cta:hover{transform:translateY(-2px);background:#efb25e}
.menu-toggle{display:none;border:0;background:transparent;color:var(--pine);font-size:25px}
.hero{padding:76px 0 86px;background:var(--pine);color:#f8f5e9;overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(230,163,75,.22);border-radius:50%;right:-170px;top:-210px}
.hero:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(255,255,255,.09);transform:rotate(24deg);right:60px;bottom:-260px}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:65px;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--amber-light);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:19px}
.eyebrow:before{content:"";width:26px;height:2px;background:var(--amber)}
.hero h1{font-size:clamp(40px,5vw,62px);line-height:1.16;letter-spacing:-.045em;margin-bottom:22px}
.hero h1 em{color:var(--amber-light);font-style:normal}
.hero-copy{max-width:600px;color:#cbd9d2;font-size:17px;line-height:1.9}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.22s}
.btn-primary{background:var(--amber);color:#302b22}
.btn-primary:hover{background:#f0b45c;transform:translateY(-2px);box-shadow:0 8px 18px rgba(230,163,75,.2)}
.btn-outline{border-color:rgba(255,255,255,.3);color:#fff}
.btn-outline:hover{border-color:var(--amber-light);color:var(--amber-light);transform:translateY(-2px)}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px}
.hero-tags span,.tag{font-size:12px;padding:4px 9px;border-radius:5px;color:var(--amber-light);border:1px solid rgba(230,163,75,.35);background:rgba(230,163,75,.08)}
.device-stage{min-height:375px;position:relative;display:flex;align-items:center;justify-content:center}
.device{width:265px;height:390px;border:7px solid #263f39;border-radius:34px;background:#f4f4ed;box-shadow:24px 25px 0 rgba(7,31,28,.28),0 25px 50px rgba(0,0,0,.18);padding:13px;color:var(--ink);transform:rotate(4deg)}
.device-top{height:24px;border-bottom:1px solid #dbe3dc;display:flex;align-items:center;justify-content:space-between;font-size:10px;color:var(--muted)}
.device-title{font-weight:800;font-size:18px;margin:19px 0 13px}
.device-banner{height:76px;background:var(--pine);border-radius:10px;color:#fff;padding:12px;font-size:12px;display:flex;flex-direction:column;justify-content:space-between}
.device-banner b{color:var(--amber-light);font-size:16px}
.device-row{display:flex;gap:7px;margin-top:12px}
.device-chip{height:58px;flex:1;border:1px solid #dce4de;border-radius:8px;padding:9px;font-size:10px;background:#fff}
.device-chip strong{display:block;font-size:14px;color:var(--pine);margin-bottom:3px}
.floating-note{position:absolute;right:22px;top:43px;background:var(--amber);color:#302b22;border-radius:10px;padding:11px 14px;font-weight:700;font-size:12px;box-shadow:var(--shadow-sm)}
.section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:31px}
.section-kicker{font-size:12px;color:#a27431;font-weight:800;letter-spacing:.12em;margin-bottom:7px}
.section-title{font-size:34px;line-height:1.3;letter-spacing:-.035em;color:var(--pine)}
.section-desc{color:var(--muted);max-width:540px;font-size:15px}
.text-link{color:var(--pine);font-weight:700;border-bottom:1px solid var(--amber);padding-bottom:3px;font-size:14px}
.status-strip{background:#edf3ee;border-bottom:1px solid var(--line)}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);border-left:1px solid var(--line)}
.status-item{padding:24px 25px;border-right:1px solid var(--line)}
.status-item strong{font-size:24px;color:var(--pine);display:block;line-height:1.2}
.status-item span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.news-layout{display:grid;grid-template-columns:1.06fr .94fr;gap:20px}
.news-feature,.news-item,.topic-card,.benefit-row,.faq-item{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);transition:.22s}
.news-feature{padding:30px;min-height:285px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(135deg,#fffdf8 0%,#edf5ef 100%)}
.news-feature:hover,.news-item:hover,.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#b9cec1}
.news-feature h3{font-size:25px;line-height:1.45;margin:13px 0 12px;max-width:560px}
.news-feature p,.news-item p{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}
.news-list{display:flex;flex-direction:column;gap:10px}
.news-item{padding:18px 20px;display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}
.news-item h3{font-size:16px;line-height:1.45;margin:5px 0}
.news-item .news-meta{justify-content:flex-end;white-space:nowrap}
.tag{display:inline-block;color:#597268;border-color:#d2e1d7;background:#eef5ef}
.tag.amber{color:#936323;border-color:#efd09d;background:#fff7e8}
.empty-state{padding:32px;text-align:center;border:1px dashed #c6d5cc;border-radius:12px;color:var(--muted);background:#fbfcf8}
.empty-state .empty-icon{font-size:28px;color:#a27431;margin-bottom:5px}
.rank-list{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.rank-item{display:flex;align-items:center;gap:17px;padding:19px 21px;border-bottom:1px solid var(--line);background:var(--white)}
.rank-number{font-size:28px;font-weight:800;color:#d7ad6e;min-width:28px}
.rank-item h3{font-size:16px;margin-bottom:4px}
.rank-item p{color:var(--muted);font-size:13px}
.download-section{background:var(--pine-deep);color:#f8f5e9;padding:92px 0}
.download-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px;align-items:center}
.app-visual{height:320px;position:relative;display:flex;justify-content:center;align-items:center}
.app-panel{width:270px;height:245px;background:#e7eee8;border-radius:16px;padding:23px;color:var(--ink);transform:rotate(-5deg);box-shadow:18px 20px 0 rgba(230,163,75,.22)}
.app-panel h3{font-size:21px;color:var(--pine);margin:8px 0 18px}
.app-line{height:12px;background:#c3d5ca;border-radius:4px;margin:11px 0}
.app-line.short{width:58%}
.download-copy .section-kicker{color:var(--amber-light)}
.download-copy .section-title{color:#fff}
.download-copy p{color:#bfd0c7;margin:18px 0 25px;max-width:560px}
.download-info{display:flex;gap:12px;flex-wrap:wrap;margin-top:21px}
.info-pill{border:1px solid rgba(255,255,255,.2);padding:9px 13px;border-radius:7px;color:#d9e5df;font-size:13px}
.qr-box{width:78px;height:78px;background:repeating-linear-gradient(45deg,#fff 0 4px,#d9e5df 4px 8px);border:5px solid #fff;border-radius:5px;margin-top:22px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.step{padding:27px 22px 10px 0;border-right:1px solid var(--line);margin-right:22px;position:relative}
.step:last-child{border-right:0}
.step-no{color:#b37a2e;font-weight:800;font-size:13px;letter-spacing:.08em}
.step h3{font-size:19px;margin:10px 0 7px}
.step p{color:var(--muted);font-size:14px}
.guide-layout{display:grid;grid-template-columns:220px 1fr;gap:42px}
.guide-nav{border-left:2px solid #d4e0d7;padding-left:18px}
.guide-nav a{display:block;padding:9px 0;color:var(--muted);font-size:14px}
.guide-nav a.active,.guide-nav a:hover{color:var(--pine);font-weight:700}
.guide-preview{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.guide-preview h3{font-size:24px;margin:11px 0}
.guide-preview p{color:var(--muted);max-width:680px}
.guide-meta{display:flex;gap:9px;margin-top:22px;align-items:center}
.timeline{position:relative;margin-left:10px;padding-left:32px;border-left:2px solid #d6e2d8}
.timeline-item{position:relative;padding:0 0 28px 20px}
.timeline-item:before{content:"";position:absolute;left:-41px;top:6px;width:15px;height:15px;border-radius:50%;background:var(--amber);border:4px solid var(--paper)}
.timeline-date{font-size:12px;color:#a27431;font-weight:700}
.timeline-item h3{font-size:18px;margin:4px 0}
.timeline-item p{color:var(--muted);font-size:14px}
.benefit-layout{display:grid;grid-template-columns:1fr .8fr;gap:25px}
.benefit-list{display:flex;flex-direction:column;gap:9px}
.benefit-row{display:flex;align-items:center;gap:16px;padding:17px 20px}
.benefit-icon{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:var(--pine-soft);color:var(--pine);font-weight:800}
.benefit-row h3{font-size:16px}
.benefit-row p{color:var(--muted);font-size:13px}
.service-note{background:#f0e7d5;border-radius:var(--radius);padding:28px;color:#5e4a2c}
.service-note h3{font-size:22px;margin-bottom:12px;color:#594321}
.service-note ul{padding-left:19px;font-size:14px;line-height:2}
.security-box{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:center;background:#e7f0eb;border-radius:18px;padding:36px 42px}
.shield{width:104px;height:120px;margin:auto;clip-path:polygon(50% 0,91% 16%,85% 65%,50% 100%,15% 65%,9% 16%);background:var(--pine);display:grid;place-items:center;color:var(--amber);font-size:35px}
.security-box h3{font-size:24px;margin-bottom:10px}
.security-box p{color:var(--muted);font-size:14px}
.security-list{display:flex;gap:20px;flex-wrap:wrap;margin-top:18px}
.security-list span{font-size:13px;color:var(--pine);font-weight:700}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-card{padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white)}
.compare-card.dark{background:var(--pine);color:#fff}
.compare-head{display:flex;justify-content:space-between;margin-bottom:19px;font-weight:800}
.compare-card ul{list-style:none;color:var(--muted);font-size:14px}
.compare-card.dark ul{color:#cbd9d2}
.compare-card li{padding:9px 0;border-bottom:1px solid var(--line)}
.compare-card.dark li{border-color:rgba(255,255,255,.14)}
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.topic-card{padding:25px;min-height:196px;display:flex;flex-direction:column;justify-content:space-between}
.topic-card:nth-child(2){background:#f5eddf}
.topic-card:nth-child(3){background:#e8f1eb}
.topic-card h3{font-size:21px}
.topic-card p{color:var(--muted);font-size:14px;margin-top:8px}
.topic-arrow{color:#a27431;font-weight:800;font-size:18px}
.faq-list{max-width:850px;margin:auto}
.faq-item{margin-bottom:10px;overflow:hidden}
.faq-question{width:100%;border:0;background:transparent;text-align:left;padding:20px 22px;display:flex;justify-content:space-between;align-items:center;color:var(--ink);font-weight:700;min-height:60px}
.faq-question span:last-child{font-size:23px;color:#a27431;font-weight:400}
.faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.final-cta{background:#e9f1eb;padding:45px 52px;border-radius:18px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.final-cta h2{font-size:29px;color:var(--pine);margin-bottom:7px}
.final-cta p{color:var(--muted);font-size:14px}
.site-footer{background:var(--pine-deep);color:#d8e2dc;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:39px;border-bottom:1px solid rgba(255,255,255,.13)}
.footer-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:12px}
.footer-intro{font-size:13px;color:#aebfb5;max-width:260px}
.footer-col h3{font-size:14px;color:var(--amber-light);margin-bottom:14px}
.footer-col a{display:block;color:#afc0b6;font-size:13px;padding:4px 0;transition:.2s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:20px;color:#8fa49a;font-size:12px}
:focus-visible{outline:3px solid rgba(230,163,75,.75);outline-offset:3px}
@media(max-width:900px){
  .navbar{gap:16px}.nav-links a{padding:8px 7px;font-size:13px}.nav-cta{padding:10px 12px}
  .hero-grid,.download-grid,.benefit-layout,.security-box{grid-template-columns:1fr;gap:35px}
  .hero{padding:58px 0 68px}.device-stage{min-height:330px}
  .news-layout{grid-template-columns:1fr}.status-item{padding:20px 14px}
  .guide-layout{grid-template-columns:160px 1fr}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
}
@media(max-width:768px){
  .container{width:min(100% - 32px,var(--max))}
  .menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;top:78px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow-sm)}
  .nav-links.open{display:flex}.nav-links a{padding:13px 14px}.nav-cta{display:none}
  .section{padding:62px 0}.section-head{display:block}.section-title{font-size:29px}.section-desc{margin-top:10px}
  .status-grid{grid-template-columns:repeat(2,1fr)}.status-item{border-bottom:1px solid var(--line)}
  .rank-list,.compare,.channel-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}.step{border-right:0;border-bottom:1px solid var(--line);padding-bottom:22px}
  .guide-layout{grid-template-columns:1fr;gap:20px}.guide-nav{display:flex;gap:16px;overflow:auto;border-left:0;border-bottom:1px solid var(--line);padding:0 0 10px}.guide-nav a{white-space:nowrap}
  .security-box{padding:30px 24px;text-align:left}.shield{width:78px;height:92px}
  .final-cta{display:block;padding:32px 25px}.final-cta .btn{margin-top:20px;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
  .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
}
@media(max-width:480px){
  .hero h1{font-size:39px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
  .device{transform:scale(.86) rotate(4deg)}.device-stage{height:300px}
  .status-grid{grid-template-columns:1fr 1fr}.status-item strong{font-size:20px}
  .news-feature{padding:22px}.news-feature h3{font-size:21px}.news-item{display:block}.news-item .news-meta{justify-content:flex-start;margin-top:9px}
  .download-section{padding:65px 0}.app-visual{height:255px}.app-panel{transform:scale(.83) rotate(-5deg)}
  .steps{grid-template-columns:1fr}.step{margin-right:0}.security-list{display:block}.security-list span{display:block;margin:8px 0}
  .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
}

/* roulang page: article */
:root{
      --pine:#123c35;
      --pine-deep:#0b2925;
      --pine-soft:#e7f0eb;
      --amber:#e6a34b;
      --amber-light:#f7d49a;
      --ink:#19312d;
      --muted:#6d7d77;
      --paper:#f6f5ef;
      --white:#fffdf8;
      --line:#dbe3dc;
      --danger:#a85b4d;
      --shadow:0 18px 45px rgba(18,60,53,.10);
      --shadow-sm:0 8px 24px rgba(18,60,53,.07);
      --radius:14px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--paper);
      font-size:16px;
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(230,163,75,.55);
      outline-offset:3px;
    }
    img{display:block;max-width:100%;height:auto}
    button,input,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:30;
      background:rgba(246,245,239,.95);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(219,227,220,.88);
    }
    .navbar{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:34px;
    }
    .brand{
      display:flex;align-items:center;gap:11px;
      color:var(--pine);font-size:20px;font-weight:800;
      letter-spacing:.02em;white-space:nowrap;
    }
    .brand-mark{
      width:35px;height:35px;border-radius:10px;
      display:grid;place-items:center;position:relative;
      background:var(--pine);color:var(--amber);font-size:17px;
    }
    .brand-mark:after{
      content:"";width:13px;height:13px;
      border:2px solid var(--amber);
      transform:rotate(45deg);position:absolute;
    }
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{
      padding:9px 13px;border-radius:8px;
      color:#52645e;font-size:14px;transition:.2s;
    }
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{
      color:var(--pine);background:var(--pine-soft);
    }
    .nav-links a.active{font-weight:700;position:relative}
    .nav-links a.active:after{
      content:"";position:absolute;bottom:3px;left:13px;right:13px;
      height:2px;background:var(--amber);
    }
    .nav-cta{
      background:var(--amber);padding:11px 18px;border-radius:9px;
      color:#2e291e;font-size:14px;font-weight:700;transition:.2s;
      white-space:nowrap;
    }
    .nav-cta:hover{transform:translateY(-2px);background:#efb25e}
    .menu-toggle{
      display:none;border:0;background:transparent;
      color:var(--pine);font-size:25px;line-height:1;
    }
    .article-head{
      padding:66px 0 58px;
      background:
        linear-gradient(120deg,rgba(231,240,235,.9),rgba(246,245,239,.2)),
        var(--paper);
      border-bottom:1px solid var(--line);
    }
    .breadcrumbs{
      display:flex;align-items:center;gap:9px;
      color:var(--muted);font-size:13px;margin-bottom:25px;
      flex-wrap:wrap;
    }
    .breadcrumbs a{color:var(--pine);font-weight:700}
    .breadcrumbs .divider{color:#aab8b0}
    .article-kicker{
      display:inline-flex;align-items:center;gap:8px;
      color:#976b2d;font-size:13px;font-weight:800;
      letter-spacing:.08em;margin-bottom:15px;
    }
    .article-kicker:before{
      content:"";width:25px;height:2px;background:var(--amber);
    }
    .article-head h1{
      max-width:900px;margin:0;
      color:var(--pine-deep);
      font-size:clamp(34px,5vw,56px);
      line-height:1.25;letter-spacing:-.045em;
      overflow-wrap:anywhere;
    }
    .article-summary{
      max-width:780px;color:var(--muted);
      font-size:17px;line-height:1.85;margin:20px 0 25px;
    }
    .article-meta{
      display:flex;align-items:center;gap:12px;
      flex-wrap:wrap;color:var(--muted);font-size:13px;
    }
    .tag{
      display:inline-block;padding:4px 10px;border-radius:5px;
      color:#597268;border:1px solid #d2e1d7;
      background:#eef5ef;font-size:12px;line-height:1.5;
    }
    .tag.amber{
      color:#936323;border-color:#efd09d;background:#fff7e8;
    }
    .article-layout{
      display:grid;grid-template-columns:minmax(0,780px) 260px;
      gap:70px;align-items:start;padding:70px 0 86px;
    }
    .article-content{
      min-width:0;background:var(--white);
      border:1px solid var(--line);border-radius:var(--radius);
      padding:clamp(26px,5vw,56px);
      box-shadow:var(--shadow-sm);
      color:#334640;font-size:17px;line-height:2;
    }
    .article-content h2{
      color:var(--pine);font-size:30px;line-height:1.35;
      letter-spacing:-.025em;margin:38px 0 17px;
      padding-left:16px;border-left:4px solid var(--amber);
    }
    .article-content h2:first-child{margin-top:0}
    .article-content h3{
      color:var(--pine);font-size:22px;line-height:1.45;margin:28px 0 12px;
    }
    .article-content p{margin:0 0 19px}
    .article-content ul,.article-content ol{margin:12px 0 24px;padding-left:28px}
    .article-content li{margin:7px 0}
    .article-content a{
      color:#946b30;border-bottom:1px solid rgba(230,163,75,.7);
    }
    .article-content blockquote{
      margin:25px 0;padding:18px 22px;
      background:var(--pine-soft);
      border-left:4px solid var(--pine);
      color:#496158;border-radius:0 10px 10px 0;
    }
    .article-content table{
      width:100%;border-collapse:collapse;margin:24px 0;
      font-size:15px;line-height:1.6;
    }
    .article-content th,.article-content td{
      padding:11px 13px;border:1px solid var(--line);text-align:left;
    }
    .article-content th{background:var(--pine-soft);color:var(--pine);font-weight:700}
    .article-content img{border-radius:10px;margin:25px auto}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:30px 0}
    .reading-aside{position:sticky;top:108px}
    .toc-card{
      background:var(--white);border:1px solid var(--line);
      border-radius:var(--radius);padding:23px 21px;
    }
    .toc-title{
      display:flex;align-items:center;justify-content:space-between;
      color:var(--pine);font-size:16px;font-weight:800;
      padding-bottom:15px;border-bottom:1px solid var(--line);
    }
    .toc-title span{
      width:8px;height:8px;border-radius:50%;background:var(--amber);
    }
    .toc-list{list-style:none;padding:14px 0 0;margin:0}
    .toc-list li{margin:3px 0}
    .toc-list a{
      display:block;padding:7px 9px;color:var(--muted);
      border-radius:6px;font-size:13px;line-height:1.5;
      transition:.2s;
    }
    .toc-list a:hover,.toc-list a.current{
      color:var(--pine);background:var(--pine-soft);
    }
    .toc-list .toc-h3{padding-left:24px;font-size:12px}
    .aside-note{
      margin-top:15px;padding:18px;background:#fff7e8;
      border:1px solid #efd09d;border-radius:var(--radius);
      color:#765a32;font-size:13px;
    }
    .aside-note strong{display:block;color:#845e27;margin-bottom:5px}
    .mobile-toc{display:none}
    .article-tool{
      margin-top:26px;padding:25px 28px;
      display:flex;align-items:center;justify-content:space-between;gap:20px;
      border-radius:var(--radius);background:var(--pine);
      color:#f8f5e9;
    }
    .article-tool h2{font-size:20px;margin:0 0 5px;color:#fff}
    .article-tool p{margin:0;color:#cbd9d2;font-size:14px}
    .btn{
      min-height:46px;padding:0 21px;
      display:inline-flex;align-items:center;justify-content:center;
      border-radius:9px;border:1px solid transparent;
      font-weight:700;transition:.22s;white-space:nowrap;
    }
    .btn-primary{background:var(--amber);color:#302b22}
    .btn-primary:hover{background:#f0b45c;transform:translateY(-2px);box-shadow:0 8px 18px rgba(230,163,75,.2)}
    .btn-outline{
      border-color:rgba(255,255,255,.3);color:#fff;background:transparent;
    }
    .btn-outline:hover{border-color:var(--amber-light);color:var(--amber-light);transform:translateY(-2px)}
    .related-section{
      padding:75px 0 82px;background:#edf3ee;border-top:1px solid var(--line);
    }
    .section-head{
      display:flex;justify-content:space-between;align-items:end;
      gap:25px;margin-bottom:28px;
    }
    .section-kicker{
      color:#a27431;font-size:12px;font-weight:800;
      letter-spacing:.12em;margin-bottom:7px;
    }
    .section-title{
      color:var(--pine);font-size:32px;line-height:1.3;
      letter-spacing:-.035em;margin:0;
    }
    .section-desc{max-width:560px;color:var(--muted);font-size:15px;margin:0}
    .related-grid{
      display:grid;grid-template-columns:repeat(3,1fr);gap:15px;
    }
    .related-card{
      min-height:190px;padding:23px;
      background:var(--white);border:1px solid var(--line);
      border-radius:var(--radius);display:flex;flex-direction:column;
      transition:.22s;
    }
    .related-card:hover{
      transform:translateY(-3px);border-color:#b9cec1;box-shadow:var(--shadow-sm);
    }
    .related-card h3{font-size:18px;line-height:1.5;color:var(--pine);margin:13px 0 8px}
    .related-card p{
      color:var(--muted);font-size:13px;line-height:1.7;margin:0;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .related-meta{display:flex;justify-content:space-between;gap:10px;margin-top:auto;padding-top:17px;color:var(--muted);font-size:12px}
    .feedback-section{padding:70px 0}
    .feedback-box{
      display:flex;align-items:center;justify-content:space-between;
      gap:35px;padding:35px 40px;background:var(--white);
      border:1px solid var(--line);border-radius:var(--radius);
    }
    .feedback-box h2{margin:0 0 7px;color:var(--pine);font-size:25px}
    .feedback-box p{margin:0;color:var(--muted);font-size:14px}
    .feedback-actions{display:flex;gap:11px;flex-wrap:wrap}
    .btn-light{
      color:var(--pine);background:var(--pine-soft);
      border:1px solid #cbdcd1;
    }
    .btn-light:hover{background:#dceae1;transform:translateY(-2px)}
    .site-footer{background:var(--pine-deep);color:#dce8df;padding:55px 0 22px}
    .footer-grid{
      display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
      gap:35px;padding-bottom:42px;
    }
    .footer-brand{font-weight:800;font-size:20px;color:#fffdf8;margin-bottom:9px}
    .footer-intro{max-width:245px;color:#9eb5a9;font-size:13px;margin:0;line-height:1.8}
    .footer-col{display:flex;flex-direction:column;gap:7px}
    .footer-col h3{color:var(--amber-light);font-size:14px;margin:0 0 8px}
    .footer-col a{color:#a9bdb3;font-size:13px;transition:.2s}
    .footer-col a:hover{color:#fff}
    .footer-bottom{
      padding-top:19px;border-top:1px solid rgba(255,255,255,.12);
      display:flex;justify-content:space-between;gap:15px;
      color:#89a197;font-size:12px;flex-wrap:wrap;
    }
    .empty-state{
      padding:35px 20px;text-align:center;color:var(--muted);
      background:#f4f7f3;border:1px dashed #c9d8ce;border-radius:10px;
    }
    .empty-state strong{display:block;color:var(--pine);font-size:17px;margin-bottom:4px}
    @media(max-width:1024px){
      .navbar{gap:18px}
      .nav-links a{padding-left:9px;padding-right:9px}
      .article-layout{grid-template-columns:minmax(0,1fr) 225px;gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{min-height:68px;justify-content:space-between}
      .menu-toggle{display:block}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:68px;
        padding:10px;background:var(--white);border:1px solid var(--line);
        border-radius:12px;box-shadow:var(--shadow);
        flex-direction:column;align-items:stretch;gap:3px;
      }
      .nav-links.open{display:flex}
      .nav-links a{min-height:44px;display:flex;align-items:center}
      .nav-cta{display:none}
      .article-head{padding:42px 0 38px}
      .article-layout{display:block;padding:40px 0 55px}
      .reading-aside{display:none}
      .mobile-toc{display:block;margin-bottom:18px}
      .mobile-toc summary{
        cursor:pointer;padding:13px 17px;border:1px solid var(--line);
        border-radius:10px;background:var(--white);color:var(--pine);
        font-weight:700;
      }
      .mobile-toc .toc-list{padding:8px 12px;background:var(--white);border:1px solid var(--line);border-top:0}
      .article-content{font-size:16px;line-height:1.9;padding:27px 22px}
      .article-content h2{font-size:25px}
      .article-tool{align-items:flex-start;flex-direction:column;padding:23px}
      .article-tool .btn{width:100%}
      .related-section,.feedback-section{padding:52px 0}
      .related-grid{grid-template-columns:1fr}
      .feedback-box{align-items:flex-start;flex-direction:column;padding:27px 23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    }
    @media(max-width:480px){
      .brand{font-size:17px}
      .brand-mark{width:31px;height:31px;border-radius:8px}
      .article-head h1{font-size:32px}
      .article-summary{font-size:15px}
      .article-content{padding:23px 17px}
      .article-content h2{font-size:23px;padding-left:12px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .section-head{display:block}
      .section-desc{margin-top:9px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 15px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:5px}
    }

/* roulang page: category1 */
:root{
      --pine:#123c35;
      --pine-deep:#0b2925;
      --pine-soft:#e7f0eb;
      --amber:#e6a34b;
      --amber-light:#f7d49a;
      --ink:#19312d;
      --muted:#6d7d77;
      --paper:#f6f5ef;
      --white:#fffdf8;
      --line:#dbe3dc;
      --shadow:0 18px 45px rgba(18,60,53,.10);
      --shadow-sm:0 8px 24px rgba(18,60,53,.07);
      --radius:14px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,245,239,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,227,220,.9)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:.02em;color:var(--pine);white-space:nowrap}
    .brand-mark{width:35px;height:35px;border-radius:10px;background:var(--pine);position:relative;display:grid;place-items:center;color:var(--amber);font-size:17px}
    .brand-mark:after{content:"";width:13px;height:13px;border:2px solid var(--amber);transform:rotate(45deg);position:absolute}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{padding:9px 13px;border-radius:8px;color:#52645e;font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{color:var(--pine);background:var(--pine-soft)}
    .nav-links a.active{font-weight:700;position:relative}
    .nav-links a.active:after{content:"";position:absolute;bottom:3px;left:13px;right:13px;height:2px;background:var(--amber)}
    .nav-cta{background:var(--amber);padding:11px 18px;border-radius:9px;font-weight:700;color:#2e291e;font-size:14px;transition:.2s}
    .nav-cta:hover{transform:translateY(-2px);background:#efb25e}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--pine);font-size:25px}
    .page-head{background:var(--pine);color:#f8f5e9;padding:64px 0 67px;position:relative;overflow:hidden}
    .page-head:after{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(230,163,75,.25);border-radius:50%;right:-100px;top:-185px}
    .crumbs{font-size:13px;color:#b9cbc2;margin-bottom:22px;position:relative;z-index:1}
    .crumbs a{color:var(--amber-light)}
    .crumbs span{padding:0 9px;color:#718b80}
    .page-head h1{font-size:clamp(34px,5vw,56px);line-height:1.2;letter-spacing:-.045em;margin:0 0 17px;position:relative;z-index:1}
    .page-head h1 em{font-style:normal;color:var(--amber-light)}
    .page-lead{max-width:680px;color:#cbd9d2;font-size:17px;margin:0;position:relative;z-index:1}
    .section{padding:82px 0}
    .section-alt{background:#edf3ed}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-kicker{font-size:12px;color:#a27431;font-weight:800;letter-spacing:.12em;margin-bottom:7px}
    .section-title{font-size:32px;line-height:1.3;letter-spacing:-.035em;color:var(--pine);margin:0}
    .section-desc{color:var(--muted);max-width:580px;font-size:15px;margin:8px 0 0}
    .tag{display:inline-block;font-size:12px;padding:4px 9px;border-radius:5px;color:#597268;border:1px solid #d2e1d7;background:#eef5ef;line-height:1.4}
    .tag.amber{color:#936323;border-color:#efd09d;background:#fff7e8}
    .index-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:18px 20px;border:1px solid var(--line);background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .index-label{font-weight:800;color:var(--pine);margin-right:7px}
    .index-chip{border:1px solid var(--line);background:#fff;padding:8px 13px;border-radius:7px;color:var(--muted);font-size:13px;transition:.2s}
    .index-chip:hover,.index-chip.selected{background:var(--pine);border-color:var(--pine);color:#fff}
    .news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
    .news-feature,.news-item,.focus-card,.faq-item,.app-strip{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);transition:.22s}
    .news-feature{padding:31px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(135deg,#fffdf8 0%,#edf5ef 100%)}
    .news-feature:hover,.news-item:hover,.focus-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#b9cec1}
    .news-feature h2{font-size:26px;line-height:1.45;margin:14px 0 12px}
    .news-feature p,.news-item p,.focus-card p{color:var(--muted);font-size:14px;margin:0}
    .news-meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}
    .news-list{display:flex;flex-direction:column;gap:10px}
    .news-item{padding:18px 20px;display:grid;grid-template-columns:1fr auto;gap:15px;align-items:center}
    .news-item h3{font-size:17px;line-height:1.45;margin:7px 0 5px}
    .news-item .news-meta{justify-content:flex-end;white-space:nowrap}
    .read-more{display:inline-flex;margin-top:22px;color:var(--pine);font-weight:700;font-size:14px;border-bottom:1px solid var(--amber);padding-bottom:3px}
    .empty-state{padding:44px 25px;text-align:center;border:1px dashed #c5d4ca;border-radius:var(--radius);color:var(--muted);background:rgba(255,253,248,.65)}
    .empty-icon{width:45px;height:45px;border-radius:50%;display:grid;place-items:center;margin:0 auto 12px;background:var(--pine-soft);color:var(--pine);font-size:22px}
    .focus-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:15px}
    .focus-card{padding:24px;min-height:185px}
    .focus-card.large{background:var(--pine);color:#fff;padding:30px}
    .focus-card.large p{color:#cbd9d2}
    .focus-card h3{font-size:20px;line-height:1.45;margin:14px 0 8px}
    .focus-card.large h3{font-size:25px;color:#fff}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding-top:12px}
    .timeline:before{content:"";height:1px;background:#c9d8ce;position:absolute;left:42px;right:42px;top:38px}
    .timeline-step{position:relative;z-index:1}
    .step-number{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--amber);color:#302b22;font-weight:800;font-size:18px;margin-bottom:20px;border:7px solid var(--paper)}
    .timeline-step h3{font-size:18px;margin:0 0 6px}
    .timeline-step p{font-size:14px;color:var(--muted);margin:0}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:11px}
    .faq-item{overflow:hidden}
    .faq-question{width:100%;min-height:58px;padding:15px 19px;background:transparent;border:0;text-align:left;color:var(--ink);font-weight:700;display:flex;justify-content:space-between;align-items:center}
    .faq-question span:last-child{color:var(--amber);font-size:22px;line-height:1}
    .faq-answer{display:none;padding:0 19px 17px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question{color:var(--pine)}
    .app-strip{display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--pine-deep);color:#fff;padding:29px 33px}
    .app-strip h2{font-size:23px;margin:0 0 5px}
    .app-strip p{color:#bfd0c7;margin:0;font-size:14px}
    .app-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.22s}
    .btn-primary{background:var(--amber);color:#302b22}
    .btn-primary:hover{background:#f0b45c;transform:translateY(-2px);box-shadow:0 8px 18px rgba(230,163,75,.2)}
    .btn-light{background:#fffdf8;color:var(--pine)}
    .btn-light:hover{background:var(--amber-light);transform:translateY(-2px)}
    .cta-panel{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:32px;border-radius:var(--radius);background:var(--pine-soft);border:1px solid #cdded2}
    .cta-panel h2{font-size:25px;color:var(--pine);margin:0 0 5px}
    .cta-panel p{color:var(--muted);margin:0;font-size:14px}
    .site-footer{background:var(--pine-deep);color:#d9e4dd;padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand{font-size:21px;font-weight:800;color:#fff;margin-bottom:10px}
    .footer-intro{color:#9eb5aa;font-size:14px;max-width:230px;margin:0}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h3{font-size:14px;color:var(--amber-light);margin:0 0 8px}
    .footer-col a{font-size:13px;color:#a9bdb3;transition:.2s}
    .footer-col a:hover{color:#fff;padding-left:3px}
    .footer-bottom{border-top:1px solid rgba(219,227,220,.15);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#819b90;font-size:12px}
    :focus-visible{outline:3px solid rgba(230,163,75,.65);outline-offset:3px}
    @media(max-width:900px){
      .navbar{gap:18px}.nav-links a{padding:8px 9px}
      .news-layout,.focus-grid{grid-template-columns:1fr}
      .focus-card.large{min-height:220px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-grid>div:last-child{display:none}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:68px;justify-content:space-between}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:13px 16px;background:var(--white);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}
      .nav-links a{text-align:center;padding:12px}
      .nav-cta{font-size:13px;padding:9px 12px}
      .page-head{padding:45px 0 50px}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-title{font-size:28px}
      .timeline{grid-template-columns:1fr;gap:23px;padding-left:18px}
      .timeline:before{width:1px;height:calc(100% - 45px);left:43px;top:38px;right:auto}
      .timeline-step{display:grid;grid-template-columns:52px 1fr;column-gap:17px}
      .step-number{grid-row:span 2;margin:0}
      .timeline-step h3{padding-top:4px}
      .faq-list{grid-template-columns:1fr}
      .app-strip,.cta-panel{display:block;padding:25px}
      .app-actions{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child{grid-column:span 2}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .brand{font-size:17px}.brand-mark{width:31px;height:31px}
      .nav-cta{display:none}
      .page-head h1{font-size:35px}
      .page-lead{font-size:15px}
      .news-feature{padding:24px;min-height:270px}
      .news-item{display:block;padding:17px}
      .news-item .news-meta{justify-content:flex-start;margin-top:12px}
      .index-bar{padding:15px}
      .index-chip{flex:1;text-align:center}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }

/* roulang page: category2 */
:root{
      --pine:#123c35;
      --pine-deep:#0b2925;
      --pine-soft:#e7f0eb;
      --amber:#e6a34b;
      --amber-light:#f7d49a;
      --ink:#19312d;
      --muted:#6d7d77;
      --paper:#f6f5ef;
      --white:#fffdf8;
      --line:#dbe3dc;
      --shadow:0 18px 45px rgba(18,60,53,.10);
      --shadow-sm:0 8px 24px rgba(18,60,53,.07);
      --radius:14px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,245,239,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,227,220,.85)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:.02em;color:var(--pine);white-space:nowrap}
    .brand-mark{width:35px;height:35px;border-radius:10px;background:var(--pine);position:relative;display:grid;place-items:center;color:var(--amber);font-size:17px}
    .brand-mark:after{content:"";width:13px;height:13px;border:2px solid var(--amber);transform:rotate(45deg);position:absolute}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{padding:9px 13px;border-radius:8px;color:#52645e;font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{color:var(--pine);background:var(--pine-soft)}
    .nav-links a.active{font-weight:700;position:relative}
    .nav-links a.active:after{content:"";position:absolute;bottom:3px;left:13px;right:13px;height:2px;background:var(--amber)}
    .nav-cta{background:var(--amber);padding:11px 18px;border-radius:9px;font-weight:700;color:#2e291e;font-size:14px;transition:.2s}
    .nav-cta:hover{transform:translateY(-2px);background:#efb25e}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--pine);font-size:25px}
    .page-head{padding:58px 0 55px;background:var(--pine);color:#f8f5e9;position:relative;overflow:hidden}
    .page-head:before{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(230,163,75,.22);border-radius:50%;right:-140px;top:-250px}
    .page-head .container{position:relative;z-index:1}
    .crumbs{display:flex;gap:10px;align-items:center;color:#b9cbc2;font-size:13px;margin-bottom:26px}
    .crumbs a:hover{color:var(--amber-light)}
    .crumbs span{color:#789088}
    .page-head h1{font-size:clamp(36px,5vw,56px);line-height:1.18;letter-spacing:-.045em;margin:0 0 18px}
    .page-head h1 em{color:var(--amber-light);font-style:normal}
    .page-intro{max-width:690px;color:#cbd9d2;font-size:16px;margin:0}
    .section{padding:78px 0}
    .section-alt{background:#edf3ee}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}
    .section-kicker{font-size:12px;color:#a27431;font-weight:800;letter-spacing:.12em;margin-bottom:7px}
    .section-title{font-size:32px;line-height:1.3;letter-spacing:-.035em;color:var(--pine);margin:0}
    .section-desc{color:var(--muted);max-width:560px;font-size:15px;margin:0}
    .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 18px;border:1px solid var(--line);background:var(--white);border-radius:12px;box-shadow:var(--shadow-sm)}
    .filter-tabs{display:flex;gap:8px;flex-wrap:wrap}
    .filter-tabs button{border:1px solid var(--line);background:#f8faf6;color:#64756f;border-radius:7px;padding:8px 14px;font-size:13px;transition:.2s}
    .filter-tabs button:hover,.filter-tabs button:focus,.filter-tabs button.is-active{background:var(--pine);border-color:var(--pine);color:#fff}
    .filter-note{font-size:13px;color:var(--muted);white-space:nowrap}
    .guide-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;margin-top:26px}
    .guide-list{display:flex;flex-direction:column;gap:11px}
    .guide-item{display:grid;grid-template-columns:58px 1fr auto;align-items:center;gap:16px;padding:20px 22px;background:var(--white);border:1px solid var(--line);border-radius:12px;transition:.22s}
    .guide-item:hover{transform:translateY(-3px);border-color:#b9cec1;box-shadow:var(--shadow-sm)}
    .guide-number{font-size:22px;color:var(--amber);font-weight:800}
    .guide-item h3{font-size:18px;line-height:1.4;margin:0 0 5px}
    .guide-item p{color:var(--muted);font-size:13px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .guide-meta{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin-bottom:6px}
    .tag{display:inline-block;color:#597268;border:1px solid #d2e1d7;background:#eef5ef;border-radius:5px;padding:3px 8px;font-size:12px;line-height:1.4}
    .tag.amber{color:#936323;border-color:#efd09d;background:#fff7e8}
    .guide-arrow{font-size:22px;color:#9aa9a2;transition:.2s}
    .guide-item:hover .guide-arrow{color:var(--amber);transform:translateX(3px)}
    .featured-guide{padding:31px;background:var(--pine);color:#f8f5e9;border-radius:14px;min-height:100%;position:relative;overflow:hidden}
    .featured-guide:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(247,212,154,.3);border-radius:50%;right:-55px;bottom:-65px}
    .featured-guide .tag{color:var(--amber-light);background:rgba(230,163,75,.1);border-color:rgba(230,163,75,.35)}
    .featured-guide h3{font-size:27px;line-height:1.35;margin:22px 0 15px;position:relative;z-index:1}
    .featured-guide p{color:#cbd9d2;font-size:14px;margin-bottom:28px;position:relative;z-index:1}
    .featured-points{padding:0;margin:0 0 30px;list-style:none;position:relative;z-index:1}
    .featured-points li{border-top:1px solid rgba(255,255,255,.14);padding:11px 0;color:#dce7e1;font-size:13px}
    .featured-points li:before{content:"✓";color:var(--amber);font-weight:800;margin-right:9px}
    .text-link{color:var(--pine);font-weight:700;border-bottom:1px solid var(--amber);padding-bottom:3px;font-size:14px}
    .text-link.light{color:var(--amber-light);position:relative;z-index:1}
    .path-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
    .path-step{padding:25px 23px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white);min-height:170px}
    .path-step strong{display:block;color:var(--amber);font-size:14px;letter-spacing:.08em;margin-bottom:17px}
    .path-step h3{font-size:19px;margin:0 0 8px}
    .path-step p{font-size:13px;color:var(--muted);margin:0}
    .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .scene-card{padding:26px;background:var(--white);border:1px solid var(--line);border-radius:12px}
    .scene-icon{width:42px;height:42px;border-radius:10px;background:var(--pine-soft);display:grid;place-items:center;color:var(--pine);font-weight:800;margin-bottom:19px}
    .scene-card h3{font-size:19px;margin:0 0 8px}
    .scene-card p{font-size:14px;color:var(--muted);margin:0}
    .faq-list{max-width:850px;margin:auto}
    .faq-item{background:var(--white);margin-bottom:10px;overflow:hidden}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:19px 22px;border:0;background:transparent;color:var(--ink);font-weight:700;text-align:left}
    .faq-question span:last-child{color:var(--amber);font-size:22px;font-weight:400}
    .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:14px}
    .app-strip{background:var(--pine-deep);color:#f8f5e9;padding:34px 38px;border-radius:14px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .app-strip h2{font-size:26px;margin:0 0 7px}
    .app-strip p{color:#cbd9d2;font-size:14px;margin:0}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.22s}
    .btn-primary{background:var(--amber);color:#302b22}
    .btn-primary:hover{background:#f0b45c;transform:translateY(-2px);box-shadow:0 8px 18px rgba(230,163,75,.2)}
    .btn-outline{border-color:rgba(255,255,255,.3);color:#fff}
    .btn-outline:hover{border-color:var(--amber-light);color:var(--amber-light);transform:translateY(-2px)}
    .closing{padding:72px 0}
    .closing-box{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:34px 38px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(135deg,#fffdf8,#edf5ef)}
    .closing-box h2{font-size:27px;margin:0 0 7px}
    .closing-box p{color:var(--muted);margin:0;font-size:14px}
    .site-footer{background:var(--pine-deep);color:#dce7e1;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px;padding-bottom:42px}
    .footer-brand{font-size:21px;font-weight:800;color:#fffdf8;margin-bottom:12px}
    .footer-intro{color:#9eb2a9;font-size:14px;max-width:230px;margin:0}
    .footer-col{display:flex;flex-direction:column;gap:7px}
    .footer-col h3{font-size:14px;color:var(--amber-light);margin:0 0 9px}
    .footer-col a{font-size:13px;color:#a9bbb3;transition:.2s}
    .footer-col a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#88a097;font-size:12px}
    :focus-visible{outline:3px solid rgba(230,163,75,.65);outline-offset:3px}
    @media(max-width:900px){
      .navbar{gap:18px}.nav-links a{padding:8px 8px}
      .guide-layout{grid-template-columns:1fr}
      .path-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}
      .footer-col:last-child{grid-column:2}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:68px;justify-content:space-between}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:62px;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.is-open{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-cta{padding:9px 12px;font-size:12px}
      .page-head{padding:43px 0 48px}
      .section{padding:58px 0}
      .section-head{display:block}.section-desc{margin-top:10px}
      .filter-bar{display:block}.filter-note{margin-top:12px}
      .scene-grid{grid-template-columns:1fr}
      .app-strip,.closing-box{display:block;padding:28px}
      .app-strip .btn,.closing-box .btn{width:100%;margin-top:21px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-col:last-child{grid-column:auto}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .brand{font-size:16px}.brand-mark{width:31px;height:31px}
      .nav-cta{display:none}
      .page-head h1{font-size:36px}
      .guide-item{grid-template-columns:38px 1fr;gap:10px;padding:17px}
      .guide-arrow{display:none}
      .path-grid{grid-template-columns:1fr}
      .section-title{font-size:28px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child,.footer-col:last-child{grid-column:auto}
    }

/* roulang page: category3 */
:root{
      --pine:#123c35;
      --pine-deep:#0b2925;
      --pine-soft:#e7f0eb;
      --amber:#e6a34b;
      --amber-light:#f7d49a;
      --ink:#19312d;
      --muted:#6d7d77;
      --paper:#f6f5ef;
      --white:#fffdf8;
      --line:#dbe3dc;
      --danger:#b55f4f;
      --shadow:0 18px 45px rgba(18,60,53,.10);
      --shadow-sm:0 8px 24px rgba(18,60,53,.07);
      --radius:14px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(230,163,75,.55);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,245,239,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,227,220,.85)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:.02em;color:var(--pine);white-space:nowrap}
    .brand-mark{width:35px;height:35px;border-radius:10px;background:var(--pine);position:relative;display:grid;place-items:center;color:var(--amber);font-size:17px}
    .brand-mark:after{content:"";width:13px;height:13px;border:2px solid var(--amber);transform:rotate(45deg);position:absolute}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{padding:9px 13px;border-radius:8px;color:#52645e;font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{color:var(--pine);background:var(--pine-soft)}
    .nav-links a.active{font-weight:700;position:relative}
    .nav-links a.active:after{content:"";position:absolute;bottom:3px;left:13px;right:13px;height:2px;background:var(--amber)}
    .nav-cta{background:var(--amber);padding:11px 18px;border-radius:9px;font-weight:700;color:#2e291e;font-size:14px;transition:.2s}
    .nav-cta:hover{transform:translateY(-2px);background:#efb25e}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--pine);font-size:25px}
    .page-head{padding:56px 0 52px;background:var(--pine);color:#f8f5e9;position:relative;overflow:hidden}
    .page-head:after{content:"";position:absolute;right:-80px;top:-150px;width:420px;height:420px;border:1px solid rgba(230,163,75,.24);border-radius:50%}
    .crumbs{position:relative;z-index:1;color:#b9cec4;font-size:13px;margin-bottom:22px}
    .crumbs a{color:var(--amber-light)}
    .page-head h1{position:relative;z-index:1;font-size:clamp(34px,5vw,54px);line-height:1.2;letter-spacing:-.04em;margin:0 0 15px}
    .page-head p{position:relative;z-index:1;color:#d2ded8;max-width:720px;margin:0;font-size:16px}
    .section{padding:78px 0}
    .section.alt{background:#edf3ee}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-kicker{font-size:12px;color:#a27431;font-weight:800;letter-spacing:.12em;margin-bottom:7px}
    .section-title{font-size:32px;line-height:1.3;letter-spacing:-.035em;color:var(--pine);margin:0}
    .section-desc{color:var(--muted);max-width:560px;font-size:15px;margin:8px 0 0}
    .filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:15px;border:1px solid var(--line);background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .filter-bar button{border:1px solid var(--line);background:#f7f8f3;color:var(--muted);padding:9px 16px;border-radius:7px;transition:.2s}
    .filter-bar button:hover,.filter-bar button.active{background:var(--pine);border-color:var(--pine);color:#fff}
    .content-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .app-card,.info-card,.feature-panel,.step,.faq-item,.cta-panel{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .app-card{padding:28px;min-height:275px;position:relative;overflow:hidden}
    .app-card:before{content:"";position:absolute;right:-35px;bottom:-65px;width:190px;height:190px;border:18px solid var(--pine-soft);border-radius:50%}
    .app-card h3{font-size:23px;line-height:1.4;margin:15px 0 10px;max-width:500px}
    .app-card p,.info-card p,.feature-panel p,.step p{color:var(--muted);font-size:14px;margin:0}
    .tag{display:inline-block;font-size:12px;padding:4px 9px;border-radius:5px;color:#597268;border:1px solid #d2e1d7;background:#eef5ef}
    .tag.amber{color:#936323;border-color:#efd09d;background:#fff7e8}
    .meta{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:12px;margin-top:22px}
    .mini-list{display:flex;flex-direction:column;gap:10px}
    .info-card{padding:18px 20px;display:flex;align-items:center;gap:14px;transition:.2s}
    .info-card:hover,.app-card:hover,.step:hover{transform:translateY(-3px);border-color:#b9cec1;box-shadow:var(--shadow)}
    .info-card b{font-size:15px;line-height:1.45;display:block}
    .info-card span{font-size:12px;color:var(--muted)}
    .number{width:34px;height:34px;flex:none;display:grid;place-items:center;background:var(--pine);color:var(--amber-light);border-radius:8px;font-weight:800}
    .feature-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;padding:30px;align-items:center;background:linear-gradient(135deg,#fffdf8,#e9f2ec)}
    .device-art{height:230px;display:flex;justify-content:center;align-items:center;gap:12px}
    .phone{width:125px;height:220px;border:7px solid var(--pine-deep);border-radius:23px;background:#fff;box-shadow:12px 12px 0 rgba(18,60,53,.10);padding:22px 10px 10px;position:relative}
    .phone:before{content:"";position:absolute;top:7px;left:38px;width:38px;height:5px;border-radius:5px;background:var(--pine-deep)}
    .phone-line{height:9px;border-radius:3px;background:var(--pine-soft);margin:10px 0}
    .phone-line.amber{background:var(--amber-light);width:68%}
    .feature-panel h3{font-size:25px;margin:0 0 12px}
    .feature-list{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:9px}
    .feature-list li{font-size:14px;color:var(--ink);padding-left:22px;position:relative}
    .feature-list li:before{content:"✓";position:absolute;left:0;color:#a27431;font-weight:800}
    .guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:23px 20px;min-height:170px;transition:.2s}
    .step .number{margin-bottom:20px}
    .step h3{font-size:18px;margin:0 0 7px}
    .faq-list{max-width:850px;margin:auto;display:grid;gap:10px}
    .faq-item{overflow:hidden}
    .faq-item summary{list-style:none;padding:19px 22px;font-weight:700;cursor:pointer;position:relative;padding-right:55px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:21px;color:#a27431;font-size:22px;top:14px}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:14px}
    .download-strip{background:var(--pine-deep);color:#f8f5e9;padding:44px 0}
    .download-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .download-inner h2{margin:0 0 7px;font-size:28px}
    .download-inner p{margin:0;color:#c5d5ce;font-size:14px}
    .download-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.22s}
    .btn-primary{background:var(--amber);color:#302b22}
    .btn-primary:hover{background:#f0b45c;transform:translateY(-2px);box-shadow:0 8px 18px rgba(230,163,75,.2)}
    .btn-outline{border-color:rgba(255,255,255,.3);color:#fff}
    .btn-outline:hover{border-color:var(--amber-light);color:var(--amber-light);transform:translateY(-2px)}
    .cta-panel{padding:31px;display:flex;justify-content:space-between;align-items:center;gap:24px;background:var(--pine);color:#fff}
    .cta-panel h2{margin:0 0 8px;font-size:27px}
    .cta-panel p{margin:0;color:#cbd9d2;font-size:14px}
    .site-footer{background:var(--pine-deep);color:#dce8e1;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{font-size:21px;font-weight:800;color:#fff;margin-bottom:9px}
    .footer-intro{color:#a8beb5;font-size:13px;max-width:250px;margin:0}
    .footer-col h3{font-size:14px;color:var(--amber-light);margin:2px 0 13px}
    .footer-col a{display:block;color:#b3c6bd;font-size:13px;margin:7px 0;transition:.2s}
    .footer-col a:hover{color:#fff;padding-left:3px}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.12);margin-top:38px;padding-top:18px;color:#8fa69d;font-size:12px}
    @media(max-width:900px){
      .navbar{gap:15px}.nav-links a{padding:8px 8px;font-size:13px}.nav-cta{padding:10px 12px}
      .content-layout,.feature-panel{grid-template-columns:1fr}.guide-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:68px;justify-content:space-between}.menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;box-shadow:var(--shadow-sm)}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .nav-cta{font-size:12px;padding:9px 11px}
      .page-head{padding:42px 0 40px}.section{padding:58px 0}.section-head{display:block}.section-title{font-size:28px}
      .download-inner,.cta-panel{display:block}.download-actions{margin-top:22px}.download-actions .btn{width:100%}
      .cta-panel .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
    }
    @media(max-width:480px){
      .brand{font-size:17px}.brand-mark{width:31px;height:31px}.guide-grid{grid-template-columns:1fr}
      .feature-panel{padding:21px}.device-art{height:205px}.phone{transform:scale(.88)}
      .filter-bar button{flex:1 1 auto}.footer-grid{grid-template-columns:1fr}
    }