/* roulang page: index */
:root{
  --ink:#24231f;
  --muted:#716e66;
  --soft:#a19b8e;
  --paper:#fbfaf7;
  --cream:#f1ede4;
  --line:#ded8cc;
  --copper:#b7653e;
  --copper-dark:#8f472c;
  --copper-pale:#ead8ca;
  --night:#292823;
  --white:#fff;
  --radius:14px;
  --shadow:0 14px 36px rgba(53,43,31,.08);
  --container:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border .25s ease,transform .25s ease}
img{display:block;max-width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(183,101,62,.38);outline-offset:3px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:78px;border-bottom:1px solid var(--line);background:rgba(251,250,247,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:34px;height:34px;border:2px solid var(--copper);color:var(--copper);display:grid;place-items:center;border-radius:8px;font-size:15px;position:relative}
.logo-mark:after{content:"";position:absolute;right:-5px;bottom:-5px;width:10px;height:10px;background:var(--copper-pale);border-radius:50%}
.logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:.08em;line-height:1.2}
.logo strong{font-size:18px;line-height:1.2}
.nav{display:flex;align-items:center;gap:8px}
.nav a{padding:9px 15px;color:#5f5a51;border-radius:8px;font-size:15px}
.nav a:hover,.nav a.active{color:var(--copper-dark);background:var(--copper-pale)}
.nav a.active{font-weight:700}
.nav-action{background:var(--copper)!important;color:var(--white)!important;padding:11px 19px!important;margin-left:10px}
.nav-action:hover{background:var(--copper-dark)!important;transform:translateY(-2px)}
.menu-toggle{display:none;border:1px solid var(--line);background:var(--white);border-radius:8px;padding:8px 11px;color:var(--ink)}
.hero{min-height:590px;display:flex;align-items:center;padding:76px 0 82px;background:var(--cream);position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(241,237,228,.98) 0%,rgba(241,237,228,.92) 42%,rgba(241,237,228,.3) 100%),url("/assets/images/backpic/back-1.jpg") center/cover no-repeat;opacity:.88}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.75fr);gap:70px;align-items:center}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--copper-dark);font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin-bottom:20px}
.eyebrow:before{content:"";width:32px;height:2px;background:var(--copper)}
.hero h1{font-size:clamp(42px,5.5vw,70px);line-height:1.13;letter-spacing:-.055em;max-width:680px;margin-bottom:24px}
.hero h1 em{font-style:normal;color:var(--copper-dark)}
.hero-lead{font-size:18px;color:#625d54;max-width:620px;line-height:1.9;margin-bottom:34px}
.actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:15px;transition:all .25s ease}
.btn-primary{background:var(--copper);color:#fff}
.btn-primary:hover{background:var(--copper-dark);transform:translateY(-2px);box-shadow:0 8px 16px rgba(143,71,44,.2)}
.btn-secondary{border-color:#bcb4a7;color:var(--ink);background:rgba(255,255,255,.35)}
.btn-secondary:hover{border-color:var(--copper);color:var(--copper-dark);background:#fff}
.hero-note{margin-top:32px;display:flex;gap:10px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;padding:5px 10px;background:rgba(255,255,255,.66);border:1px solid rgba(180,168,151,.55);border-radius:999px;color:#71675b;font-size:13px}
.hero-panel{background:rgba(255,255,255,.84);border:1px solid rgba(255,255,255,.9);padding:28px;border-radius:18px;box-shadow:var(--shadow);max-width:420px;justify-self:end}
.panel-image{height:188px;border-radius:11px;margin-bottom:22px}
.panel-kicker{color:var(--copper-dark);font-size:12px;font-weight:800;letter-spacing:.1em;margin-bottom:7px}
.hero-panel h2{font-size:24px;line-height:1.35;margin-bottom:10px}
.hero-panel p{font-size:14px;color:var(--muted)}
.panel-line{height:1px;background:var(--line);margin:21px 0}
.panel-meta{display:flex;justify-content:space-between;color:var(--soft);font-size:13px}
.section{padding:100px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:42px}
.section-head h2{font-size:clamp(28px,3vw,38px);line-height:1.25;letter-spacing:-.035em}
.section-head p{max-width:470px;color:var(--muted);font-size:15px}
.section-index{color:var(--copper);font-size:13px;font-weight:800;letter-spacing:.14em;margin-bottom:11px}
.keyword-section{background:#fff}
.keyword-layout{display:grid;grid-template-columns:.8fr 1.5fr;gap:70px;align-items:start}
.keyword-intro h2{font-size:35px;line-height:1.3;margin-bottom:18px}
.keyword-intro p{color:var(--muted);max-width:330px}
.keyword-list{border-top:1px solid var(--line)}
.keyword-item{display:grid;grid-template-columns:55px 1fr auto;gap:20px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line)}
.keyword-no{color:var(--copper);font-size:14px;font-weight:800}
.keyword-item h3{font-size:21px;margin-bottom:3px}
.keyword-item p{color:var(--muted);font-size:14px}
.text-link{color:var(--copper-dark);font-weight:700;white-space:nowrap;font-size:14px}
.text-link:after{content:" →";transition:padding .2s}
.text-link:hover:after{padding-left:5px}
.topic-section{background:var(--paper)}
.topic-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:24px}
.topic-lead{min-height:370px;padding:36px;background:var(--night);color:#fff;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:space-between}
.topic-lead .section-index{color:#d79770}
.topic-lead h3{font-size:30px;line-height:1.35;max-width:400px}
.topic-lead p{color:#c2bdb2;font-size:15px;max-width:430px}
.topic-lead .text-link{color:#e5a27d}
.topic-feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);display:grid;grid-template-columns:.9fr 1fr;overflow:hidden}
.topic-feature img{height:100%;min-height:370px;width:100%}
.topic-copy{padding:31px;display:flex;flex-direction:column;justify-content:center}
.topic-copy .tag{background:var(--cream);width:max-content;margin-bottom:17px}
.topic-copy h3{font-size:24px;line-height:1.4;margin-bottom:13px}
.topic-copy p{color:var(--muted);font-size:15px;margin-bottom:22px}
.scenes{background:#f3eee6}
.scene-layout{display:grid;grid-template-columns:1fr 2fr;gap:80px}
.scene-intro h2{font-size:34px;line-height:1.3;margin-bottom:16px}
.scene-intro p{color:var(--muted)}
.scene-list{border-top:1px solid #d2c8b8}
.scene-row{display:grid;grid-template-columns:60px 1.2fr 1fr auto;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid #d2c8b8}
.scene-row strong{font-size:22px;color:var(--copper)}
.scene-row h3{font-size:18px}
.scene-row p{font-size:14px;color:var(--muted)}
.scene-row .tag{background:transparent;border-color:#c8b9a7}
.news-section{background:#fff}
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:120px 1fr 110px 100px;gap:24px;align-items:center;padding:23px 0;border-bottom:1px solid var(--line)}
.news-date{font-size:13px;color:var(--soft);font-variant-numeric:tabular-nums}
.news-item h3{font-size:18px;line-height:1.4;margin-bottom:4px}
.news-item p{font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-item .tag{background:var(--cream);border:0}
.empty-state{padding:48px 20px;text-align:center;border:1px dashed #cfc5b7;background:var(--paper);color:var(--muted);border-radius:12px}
.empty-state span{display:block;color:var(--copper);font-size:25px;margin-bottom:8px}
.faq-section{background:var(--cream)}
.faq-grid{display:grid;grid-template-columns:.75fr 1.4fr;gap:80px}
.faq-intro h2{font-size:34px;line-height:1.3;margin-bottom:15px}
.faq-intro p{color:var(--muted)}
.faq-list{border-top:1px solid #d3c9bb}
details{border-bottom:1px solid #d3c9bb;padding:0}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0;font-weight:700}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";font-size:23px;color:var(--copper);font-weight:400}
details[open] summary:after{content:"−"}
details[open]{color:var(--copper-dark)}
details p{color:var(--muted);font-size:15px;padding:0 42px 21px 0}
.cta{padding:74px 0;background:var(--night);color:#fff}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:40px}
.cta h2{font-size:clamp(28px,3vw,40px);line-height:1.3;margin-bottom:10px}
.cta p{color:#c9c3b8;max-width:650px}
.cta .btn{flex:none}
.site-footer{background:#201f1b;color:#cfc9bd;padding:55px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:45px;padding-bottom:48px}
.footer-brand strong{color:#fff;font-size:19px}
.footer-brand p{color:#968f84;font-size:14px;max-width:270px;margin-top:14px}
.footer-title{font-size:14px;color:#fff;font-weight:700;margin-bottom:16px}
.footer-links{list-style:none;display:grid;gap:9px}
.footer-links a{font-size:14px;color:#968f84}
.footer-links a:hover{color:#e3a17e}
.footer-contact{font-size:14px;color:#968f84;line-height:2}
.footer-bottom{border-top:1px solid #3c3932;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#777168;font-size:12px}
@media(max-width:1024px){
  .hero-inner{gap:35px}.scene-layout{gap:40px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-contact{grid-column:2 / -1}
}
@media(max-width:768px){
  .container{width:min(100% - 32px,var(--container))}
  .site-header,.nav-wrap{height:68px}.menu-toggle{display:block}
  .nav{display:none;position:absolute;top:68px;left:16px;right:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:10px;border-radius:12px;flex-direction:column;align-items:stretch}
  .nav.open{display:flex}.nav a{padding:13px 14px}.nav-action{margin:3px 0 0!important;text-align:center}
  .hero{padding:65px 0 60px;min-height:0}.hero-inner,.keyword-layout,.topic-grid,.scene-layout,.faq-grid{grid-template-columns:1fr}
  .hero-panel{justify-self:stretch;max-width:none}.hero h1{font-size:clamp(39px,10vw,56px)}
  .section{padding:64px 0}.section-head{display:block;margin-bottom:28px}.section-head p{margin-top:12px}
  .topic-feature{grid-template-columns:1fr}.topic-feature img{height:230px;min-height:0}
  .scene-row{grid-template-columns:40px 1fr auto;gap:12px}.scene-row p{grid-column:2 / -1}.scene-row .tag{grid-column:2}
  .news-item{grid-template-columns:90px 1fr auto;gap:10px}.news-item .tag{grid-column:2}.news-item .text-link{grid-column:3;grid-row:1 / span 2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1 / -1}.footer-contact{grid-column:auto}
  .cta-inner{display:block}.cta .btn{margin-top:25px}
}
@media(max-width:480px){
  body{font-size:15px}.logo strong{font-size:15px}.logo small{font-size:9px}
  .hero-panel{padding:20px}.panel-image{height:150px}
  .keyword-item{grid-template-columns:35px 1fr}.keyword-item .text-link{grid-column:2}
  .keyword-item h3{font-size:19px}.topic-lead{min-height:300px;padding:25px}.topic-lead h3{font-size:25px}
  .news-item{grid-template-columns:1fr}.news-item .text-link,.news-item .tag{grid-column:auto;grid-row:auto}
  .news-item p{white-space:normal}.footer-grid{grid-template-columns:1fr}.footer-brand,.footer-contact{grid-column:auto}
  .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
}

/* roulang page: article */
:root{
      --ink:#24231f;
      --muted:#716e66;
      --soft:#a19b8e;
      --paper:#fbfaf7;
      --cream:#f1ede4;
      --line:#ded8cc;
      --copper:#b7653e;
      --copper-dark:#8f472c;
      --copper-pale:#ead8ca;
      --night:#292823;
      --white:#fff;
      --radius:14px;
      --shadow:0 14px 36px rgba(53,43,31,.08);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:var(--paper);
      line-height:1.75;
      font-size:16px;
    }
    a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border .25s ease,transform .25s ease}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(183,101,62,.35);outline-offset:3px}
    img{display:block;max-width:100%;object-fit:cover}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:78px;border-bottom:1px solid var(--line);background:rgba(251,250,247,.95);
      position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)
    }
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .logo-mark{
      width:34px;height:34px;border:2px solid var(--copper);color:var(--copper);
      display:grid;place-items:center;border-radius:8px;font-size:15px;position:relative
    }
    .logo-mark:after{content:"";position:absolute;right:-5px;bottom:-5px;width:10px;height:10px;background:var(--copper-pale);border-radius:50%}
    .logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:.08em;line-height:1.2}
    .logo strong{font-size:18px;line-height:1.2}
    .nav{display:flex;align-items:center;gap:8px}
    .nav a{padding:9px 15px;color:#5f5a51;border-radius:8px;font-size:15px}
    .nav a:hover,.nav a.active{color:var(--copper-dark);background:var(--copper-pale)}
    .nav a.active{font-weight:700}
    .nav-action{background:var(--copper)!important;color:var(--white)!important;padding:11px 19px!important;margin-left:10px}
    .nav-action:hover{background:var(--copper-dark)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);border-radius:8px;padding:8px 11px;color:var(--ink)}
    .article-banner{
      background:var(--cream);border-bottom:1px solid var(--line);padding:54px 0 58px;
      position:relative;overflow:hidden
    }
    .article-banner:after{
      content:"";position:absolute;right:-100px;top:-130px;width:430px;height:430px;
      border:1px solid rgba(183,101,62,.18);border-radius:50%;
      box-shadow:0 0 0 38px rgba(183,101,62,.06),0 0 0 76px rgba(183,101,62,.04)
    }
    .breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px;position:relative;z-index:1}
    .breadcrumbs a:hover{color:var(--copper-dark)}
    .breadcrumbs .sep{color:var(--soft)}
    .article-kicker{display:flex;align-items:center;gap:10px;color:var(--copper-dark);font-size:13px;font-weight:800;letter-spacing:.12em;margin-bottom:16px;position:relative;z-index:1}
    .article-kicker:before{content:"";width:30px;height:2px;background:var(--copper)}
    .article-banner h1{
      max-width:900px;font-size:clamp(34px,5vw,58px);line-height:1.25;
      letter-spacing:-.045em;margin:0 0 22px;position:relative;z-index:1
    }
    .article-summary{max-width:780px;color:#625d54;font-size:17px;line-height:1.9;margin:0;position:relative;z-index:1}
    .article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;margin-top:25px;color:var(--muted);font-size:14px;position:relative;z-index:1}
    .tag{display:inline-flex;align-items:center;padding:5px 11px;background:var(--white);border:1px solid var(--line);border-radius:999px;color:var(--copper-dark);font-size:13px}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:76px;align-items:start;padding:76px 0 96px}
    .article-content{min-width:0}
    .cover-image{width:100%;height:360px;border-radius:16px;margin-bottom:42px}
    .article-content h2{font-size:29px;line-height:1.35;margin:43px 0 18px;letter-spacing:-.025em}
    .article-content h3{font-size:21px;line-height:1.45;margin:30px 0 12px}
    .article-content p{color:#49463f;margin:0 0 22px;line-height:1.95}
    .article-content ul,.article-content ol{padding-left:24px;margin:18px 0 28px;color:#49463f}
    .article-content li{padding-left:6px;margin:8px 0;line-height:1.85}
    .article-content blockquote{
      border-left:4px solid var(--copper);background:var(--cream);padding:20px 24px;
      margin:30px 0;color:#554e44;border-radius:0 10px 10px 0
    }
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;color:#4b4740;font-size:15px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
    .article-content th{background:var(--cream);color:var(--ink);font-weight:700}
    .article-content a{color:var(--copper-dark);text-decoration:underline;text-underline-offset:3px}
    .article-content img{border-radius:12px;margin:28px 0}
    .article-content figure{margin:30px 0}
    .article-content figcaption{color:var(--muted);font-size:13px;text-align:center;margin-top:-17px}
    .article-aside{position:sticky;top:108px}
    .aside-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:23px;box-shadow:var(--shadow);margin-bottom:18px}
    .aside-card.dark{background:var(--night);color:#fff;border-color:var(--night)}
    .aside-label{font-size:12px;color:var(--copper-dark);font-weight:800;letter-spacing:.12em;margin-bottom:12px}
    .dark .aside-label{color:#e3a07b}
    .aside-card h2{font-size:20px;line-height:1.45;margin:0 0 12px}
    .aside-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 16px}
    .dark p{color:#c7c1b7}
    .aside-links{list-style:none;padding:0;margin:0}
    .aside-links li{border-top:1px solid var(--line);padding:12px 0;font-size:14px}
    .aside-links li:first-child{border-top:0}
    .aside-links a:hover{color:var(--copper-dark)}
    .article-note{display:flex;gap:13px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px;margin:34px 0}
    .article-note-mark{width:28px;height:28px;flex:none;border-radius:50%;background:var(--copper-pale);color:var(--copper-dark);display:grid;place-items:center;font-weight:800}
    .article-note p{margin:0;font-size:14px;line-height:1.7}
    .article-end{border-top:1px solid var(--line);padding-top:27px;margin-top:52px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    .text-link{color:var(--copper-dark);font-weight:700;font-size:14px}
    .text-link:after{content:" →";transition:padding .2s}
    .text-link:hover:after{padding-left:5px}
    .cta{background:var(--night);color:#fff;padding:76px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}
    .cta h2{font-size:clamp(27px,3.5vw,40px);line-height:1.3;margin:0 0 12px}
    .cta p{color:#c9c3b9;margin:0;max-width:650px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:15px;transition:all .25s ease}
    .btn-primary{background:var(--copper);color:#fff}
    .btn-primary:hover{background:#d07a50;color:#fff;transform:translateY(-2px);box-shadow:0 8px 16px rgba(143,71,44,.2)}
    .btn-secondary{border-color:#bcb4a7;color:var(--ink);background:rgba(255,255,255,.35)}
    .btn-secondary:hover{border-color:var(--copper);color:var(--copper-dark);background:#fff}
    .cta .btn-secondary{border-color:#81796d;color:#fff;background:transparent}
    .cta .btn-secondary:hover{background:#fff;color:var(--ink)}
    .site-footer{background:#211f1b;color:#eee8de;padding:58px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:42px;padding-bottom:45px}
    .footer-brand .logo{color:#fff;margin-bottom:17px}
    .footer-brand p,.footer-contact p{color:#aaa398;font-size:14px;max-width:280px;line-height:1.8}
    .footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:15px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:8px 0}
    .footer-links a{font-size:14px;color:#aaa398}
    .footer-links a:hover,.footer-contact .text-link:hover{color:#e4a27e}
    .footer-contact .text-link{color:#d9926d}
    .footer-bottom{border-top:1px solid #403b34;padding-top:22px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#898278;font-size:12px}
    .empty-state{background:#fff;border:1px solid var(--line);border-radius:16px;padding:65px 30px;text-align:center}
    .empty-icon{width:50px;height:50px;border:1px solid var(--copper);border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;color:var(--copper);font-size:21px}
    .empty-state h2{font-size:25px;margin:0 0 9px}
    .empty-state p{color:var(--muted);margin:0 0 22px}
    @media(max-width:1024px){
      .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:38px}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-contact{grid-column:2 / 4}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .site-header,.nav-wrap{height:70px}
      .nav-wrap{position:relative}
      .menu-toggle{display:block}
      .nav{display:none;position:absolute;top:70px;left:0;right:0;padding:12px;background:var(--paper);border:1px solid var(--line);border-top:0;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .nav a{padding:13px 15px}
      .nav-action{margin:5px 0 0!important;text-align:center}
      .article-banner{padding:40px 0 44px}
      .article-layout{display:block;padding:52px 0 65px}
      .article-aside{position:static;margin-top:45px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
      .aside-card{margin:0}
      .cover-image{height:260px;margin-bottom:30px}
      .cta-inner{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-contact{grid-column:auto}
    }
    @media(max-width:480px){
      body{font-size:15px}
      .logo strong{font-size:16px}
      .logo small{font-size:10px}
      .article-banner h1{font-size:34px}
      .article-summary{font-size:16px}
      .article-meta{align-items:flex-start;flex-direction:column;gap:7px}
      .cover-image{height:205px}
      .article-content h2{font-size:25px;margin-top:34px}
      .article-content h3{font-size:19px}
      .article-aside{display:block}
      .aside-card{margin-bottom:15px}
      .article-end{display:block}
      .article-end > *{display:block;margin:10px 0}
      .cta{padding:55px 0}
      .cta .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .footer-contact{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin:5px 0}
    }

/* roulang page: category1 */
:root{
      --ink:#24231f;
      --muted:#716e66;
      --soft:#a19b8e;
      --paper:#fbfaf7;
      --cream:#f1ede4;
      --line:#ded8cc;
      --copper:#b7653e;
      --copper-dark:#8f472c;
      --copper-pale:#ead8ca;
      --night:#292823;
      --white:#fff;
      --radius:14px;
      --shadow:0 14px 36px rgba(53,43,31,.08);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border .25s ease,transform .25s ease}
    img{display:block;max-width:100%;object-fit:cover}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(183,101,62,.35);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;border-bottom:1px solid var(--line);background:rgba(251,250,247,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border:2px solid var(--copper);color:var(--copper);display:grid;place-items:center;border-radius:8px;font-size:15px;position:relative}
    .logo-mark:after{content:"";position:absolute;right:-5px;bottom:-5px;width:10px;height:10px;background:var(--copper-pale);border-radius:50%}
    .logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:.08em;line-height:1.2}
    .logo strong{font-size:18px;line-height:1.2}
    .nav{display:flex;align-items:center;gap:8px}
    .nav a{padding:9px 15px;color:#5f5a51;border-radius:8px;font-size:15px}
    .nav a:hover,.nav a.active{color:var(--copper-dark);background:var(--copper-pale)}
    .nav a.active{font-weight:700}
    .nav-action{background:var(--copper)!important;color:var(--white)!important;padding:11px 19px!important;margin-left:10px}
    .nav-action:hover{background:var(--copper-dark)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);border-radius:8px;padding:8px 11px;color:var(--ink)}
    .page-hero{padding:82px 0 76px;background:var(--cream);position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;right:0;top:0;width:43%;height:100%;background:linear-gradient(90deg,var(--cream),rgba(241,237,228,.18)),url("/assets/images/backpic/back-2.webp") center/cover;opacity:.7}
    .page-hero .container{position:relative;z-index:1}
    .eyebrow{display:flex;align-items:center;gap:10px;color:var(--copper-dark);font-size:13px;font-weight:800;letter-spacing:.14em;margin-bottom:18px}
    .eyebrow:before{content:"";width:32px;height:2px;background:var(--copper)}
    .page-hero h1{font-size:clamp(38px,5vw,60px);line-height:1.18;letter-spacing:-.05em;max-width:760px;margin:0 0 22px}
    .page-hero h1 em{font-style:normal;color:var(--copper-dark)}
    .hero-lead{font-size:18px;color:#625d54;max-width:650px;line-height:1.9;margin:0 0 28px}
    .breadcrumbs{font-size:13px;color:var(--muted);margin-top:34px}
    .breadcrumbs a:hover{color:var(--copper-dark)}
    .breadcrumbs span{margin:0 9px;color:var(--soft)}
    .section{padding:92px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:40px}
    .section-index{color:var(--copper);font-size:13px;font-weight:800;letter-spacing:.14em;margin-bottom:10px}
    .section-head h2{font-size:clamp(28px,3vw,38px);line-height:1.25;letter-spacing:-.035em;margin:0}
    .section-head p{max-width:480px;color:var(--muted);font-size:15px;margin:0}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:15px;transition:all .25s ease}
    .btn-primary{background:var(--copper);color:#fff}
    .btn-primary:hover{background:var(--copper-dark);transform:translateY(-2px);box-shadow:0 8px 16px rgba(143,71,44,.2)}
    .btn-secondary{border-color:#bcb4a7;color:var(--ink);background:rgba(255,255,255,.35)}
    .btn-secondary:hover{border-color:var(--copper);color:var(--copper-dark);background:#fff}
    .guide-intro{background:#fff}
    .guide-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:start}
    .guide-grid h3{font-size:30px;line-height:1.35;margin:0 0 16px}
    .guide-grid p{color:var(--muted);margin:0}
    .keyword-list{border-top:1px solid var(--line)}
    .keyword-item{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:23px 0;border-bottom:1px solid var(--line)}
    .keyword-no{color:var(--copper);font-weight:800;font-size:18px}
    .keyword-item h4{margin:0 0 5px;font-size:20px}
    .keyword-item p{font-size:14px}
    .feature-section{background:var(--paper)}
    .feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
    .feature-image{border-radius:var(--radius);overflow:hidden;min-height:385px;position:relative}
    .feature-image img{width:100%;height:100%;min-height:385px}
    .image-caption{position:absolute;left:22px;bottom:20px;background:rgba(41,40,35,.82);color:#fff;padding:8px 13px;border-radius:7px;font-size:13px}
    .feature-copy{padding:35px 5px 20px 25px}
    .tag{display:inline-flex;align-items:center;padding:5px 10px;background:var(--cream);border:1px solid var(--line);border-radius:999px;color:#71675b;font-size:13px}
    .feature-copy h3{font-size:30px;line-height:1.35;margin:20px 0 14px}
    .feature-copy p{color:var(--muted);margin-bottom:24px}
    .topic-rows{border-top:1px solid var(--line)}
    .topic-row{display:grid;grid-template-columns:54px 1fr auto;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:22px 0}
    .topic-row strong{color:var(--copper);font-size:20px}
    .topic-row h4{font-size:18px;margin:0 0 4px}
    .topic-row p{color:var(--muted);font-size:14px;margin:0}
    .text-link{color:var(--copper-dark);font-weight:700;white-space:nowrap;font-size:14px}
    .text-link:after{content:" →";transition:padding .2s}
    .text-link:hover:after{padding-left:5px}
    .faq-section{background:#fff}
    .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-layout h2{font-size:34px;line-height:1.3;margin:0 0 15px}
    .faq-layout>div>p{color:var(--muted)}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:none;border:0;padding:20px 0;color:var(--ink);font-weight:700}
    .faq-question span:last-child{font-size:24px;color:var(--copper);transition:transform .25s}
    .faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s ease,padding .3s ease}
    .faq-item.open .faq-answer{max-height:120px;padding:0 35px 20px 0}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:62px 0;background:var(--night);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:35px}
    .cta h2{font-size:clamp(27px,3vw,39px);line-height:1.3;margin:0 0 10px}
    .cta p{color:#c7c1b7;margin:0;max-width:650px}
    .site-footer{background:#201f1b;color:#fff;padding:64px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .7fr .8fr 1fr;gap:45px}
    .footer-brand .logo{margin-bottom:18px}
    .footer-brand .logo strong{color:#fff}
    .footer-brand p,.footer-contact p{color:#aaa59b;font-size:14px;margin:0;max-width:280px}
    .footer-title{font-weight:700;margin-bottom:17px;color:#eee8dd}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin-bottom:10px}
    .footer-links a{color:#aaa59b;font-size:14px}
    .footer-links a:hover{color:#e0a17c}
    .footer-contact .text-link{display:inline-block;margin-top:16px;color:#e0a17c}
    .footer-bottom{border-top:1px solid #403d36;margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#817c72;font-size:12px}
    @media(max-width:1024px){
      .nav{gap:2px}
      .nav a{padding:8px 10px}
      .guide-grid,.faq-layout{gap:35px}
      .footer-grid{grid-template-columns:1fr 1fr;row-gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 36px))}
      .site-header,.nav-wrap{height:70px}
      .menu-toggle{display:block}
      .nav{display:none;position:absolute;left:18px;right:18px;top:76px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .nav a{padding:13px 14px}
      .nav-action{margin:5px 0 0!important;text-align:center}
      .page-hero{padding:62px 0 50px}
      .page-hero:after{width:100%;opacity:.18}
      .page-hero h1{font-size:42px}
      .section{padding:64px 0}
      .section-head,.cta-inner{display:block}
      .section-head p{margin-top:16px}
      .guide-grid,.feature-grid,.faq-layout{grid-template-columns:1fr}
      .feature-copy{padding:28px 0}
      .topic-row{grid-template-columns:40px 1fr}
      .topic-row .text-link{grid-column:2}
      .cta .btn{margin-top:25px}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 30px)}
      .logo strong{font-size:16px}
      .logo small{font-size:10px}
      .page-hero h1{font-size:35px}
      .hero-lead{font-size:16px}
      .feature-image,.feature-image img{min-height:270px}
      .guide-grid h3,.feature-copy h3{font-size:26px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }