/* roulang page: index */
:root{
  --ink:#20211f;
  --ink-soft:#4f514c;
  --muted:#777970;
  --paper:#f5f2eb;
  --paper-deep:#ebe5d9;
  --white:#fffdf8;
  --copper:#a66a3f;
  --copper-light:#d8b18e;
  --line:#d8d2c7;
  --shadow:0 14px 34px rgba(42,35,25,.08);
  --radius:16px;
  --max: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;background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px}
body.menu-open{overflow:hidden}
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:0 auto}
.site-header{height:82px;border-bottom:1px solid var(--line);background:rgba(245,242,235,.96);position:sticky;top:0;z-index:20}
.navbar{height:100%;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:35px;height:35px;border:1px solid var(--copper);display:grid;place-items:center;color:var(--copper);font-family:Georgia,serif;font-size:17px}
.logo-text small{display:block;color:var(--copper);font:11px/1.2 Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:34px;margin-left:auto}
.nav-links a{font-size:15px;color:var(--ink-soft);padding:28px 0;position:relative}
.nav-links a:after{content:"";position:absolute;left:0;right:100%;bottom:18px;height:2px;background:var(--copper);transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a:hover:after,.nav-links a.active:after{right:0}
.nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--ink);background:var(--ink);color:var(--white);padding:12px 20px;border-radius:8px;font-weight:700;transition:.25s}
.nav-action{font-size:14px;padding:10px 16px}
.btn:hover,.nav-action:hover{background:var(--copper);border-color:var(--copper);transform:translateY(-2px)}
.btn:active,.nav-action:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--copper)}
.btn-outline:hover{color:var(--white)}
.btn-link{background:transparent;border:0;color:var(--copper);padding:0;font-weight:700}
.btn:focus-visible,.nav-action:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(166,106,63,.35);outline-offset:4px}
.menu-toggle{display:none;border:1px solid var(--line);background:transparent;width:44px;height:44px;border-radius:8px;color:var(--ink)}
.hero{padding:86px 0 48px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:74px;align-items:center}
.eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--copper);font:700 12px/1.3 Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
.eyebrow:before,.section-kicker:before{content:"";width:28px;height:1px;background:var(--copper)}
.hero h1{font-size:clamp(44px,5.4vw,70px);line-height:1.12;letter-spacing:-.045em;margin:20px 0 24px;max-width:680px}
.hero h1 em{font-style:normal;color:var(--copper)}
.hero-copy{font-size:18px;color:var(--ink-soft);max-width:570px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:24px;margin-top:34px}
.hero-note{font-size:14px;color:var(--muted);border-bottom:1px solid var(--copper-light);padding-bottom:3px}
.hero-visual{position:relative;min-height:450px}
.hero-image{height:450px;width:100%;object-fit:cover;border-radius:var(--radius);filter:saturate(.78)}
.visual-panel{position:absolute;left:-36px;bottom:28px;background:var(--ink);color:var(--white);width:235px;padding:22px;border-radius:12px;box-shadow:var(--shadow)}
.visual-panel .number{font:44px/1 Georgia,serif;color:var(--copper-light);display:block;margin-bottom:13px}
.visual-panel p{font-size:14px;color:#d5d1c8}
.hero-stamp{position:absolute;right:-17px;top:25px;width:84px;height:84px;border:1px solid var(--copper);border-radius:50%;display:grid;place-items:center;color:var(--copper);font-size:13px;background:var(--paper)}
.info-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);margin-top:52px}
.info-item{padding:20px 24px;border-right:1px solid var(--line)}
.info-item:last-child{border:0}
.info-item strong{display:block;font-size:18px;margin-bottom:3px}
.info-item span{font-size:13px;color:var(--muted)}
.section{padding:105px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
.section h2{font-size:clamp(30px,4vw,46px);line-height:1.2;letter-spacing:-.035em;margin-top:14px}
.section-intro{max-width:430px;color:var(--ink-soft)}
.value-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;align-items:start}
.value-lead{font-size:21px;line-height:1.65;color:var(--ink-soft)}
.value-lead strong{color:var(--ink)}
.index-list{border-top:1px solid var(--ink)}
.index-row{display:grid;grid-template-columns:58px 1fr auto;gap:22px;align-items:center;border-bottom:1px solid var(--line);padding:22px 0}
.index-row b{font:18px Georgia,serif;color:var(--copper)}
.index-row h3{font-size:19px;margin-bottom:3px}
.index-row p{font-size:14px;color:var(--muted)}
.index-arrow{font-size:22px;color:var(--copper);transition:.2s}
.index-row:hover .index-arrow{transform:translateX(5px)}
.story{background:var(--white)}
.story-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:78px;align-items:center}
.story-photos{display:grid;grid-template-columns:1.18fr .82fr;gap:14px;align-items:end}
.story-photos img{width:100%;height:390px;object-fit:cover;border-radius:14px}
.story-photos img:last-child{height:250px}
.story-copy h2{margin-bottom:20px}
.story-copy>p{color:var(--ink-soft);margin-bottom:25px}
.check-list{list-style:none;border-top:1px solid var(--line);margin:25px 0 31px}
.check-list li{padding:13px 0;border-bottom:1px solid var(--line);display:flex;gap:14px}
.check-list li:before{content:"✓";color:var(--copper);font-weight:bold}
.directory{padding-top:95px}
.topic-grid{display:grid;grid-template-columns:1.35fr .8fr .95fr;gap:16px}
.topic-card{border:1px solid var(--line);background:var(--white);padding:28px;min-height:230px;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:space-between;transition:.25s}
.topic-card:first-child{background:var(--ink);color:var(--white);min-height:280px}
.topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.topic-card h3{font-size:24px;margin:12px 0 8px}
.topic-card p{font-size:14px;color:var(--muted)}
.topic-card:first-child p{color:#d8d4cb}
.topic-meta{font-size:12px;color:var(--copper);letter-spacing:.06em}
.latest{background:var(--paper-deep)}
.latest-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:78px}
.latest-title p{color:var(--ink-soft);margin-top:18px}
.post-list{border-top:1px solid var(--ink)}
.post-item{display:grid;grid-template-columns:120px 1fr 25px;gap:22px;padding:22px 0;border-bottom:1px solid #cfc7b9;align-items:start}
.post-date{font-size:13px;color:var(--copper);padding-top:4px}
.post-item h3{font-size:18px;margin-bottom:5px}
.post-item p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-item .tag{display:inline-block;border:1px solid var(--copper-light);padding:2px 8px;font-size:11px;color:var(--copper);margin-bottom:7px}
.post-arrow{color:var(--copper);font-size:20px}
.empty-state{padding:38px 20px;border:1px dashed var(--copper-light);color:var(--muted);text-align:center;background:rgba(255,253,248,.45)}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:90px}
.faq-list{border-top:1px solid var(--ink)}
details{border-bottom:1px solid var(--line);padding:20px 0}
summary{list-style:none;cursor:pointer;font-weight:700;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";color:var(--copper);font-size:23px;font-weight:400;line-height:1}
details[open] summary:after{content:"−"}
details[open]{background:rgba(216,177,142,.1);padding-left:16px;padding-right:16px}
details p{color:var(--ink-soft);font-size:15px;padding:14px 28px 2px 0}
.cta{padding:64px 0;background:var(--ink);color:var(--white)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}
.cta h2{font-size:clamp(28px,3.5vw,42px);line-height:1.2;margin:12px 0}
.cta p{color:#d8d4cb;max-width:600px}
.cta .btn{background:var(--copper);border-color:var(--copper)}
.cta .btn:hover{background:var(--white);border-color:var(--white);color:var(--ink)}
.site-footer{padding:52px 0 24px;background:#191a18;color:#eee9df}
.footer-top{display:grid;grid-template-columns:1.4fr .7fr .8fr;gap:60px;padding-bottom:45px}
.footer-brand p{color:#a9a79f;font-size:14px;max-width:330px;margin-top:15px}
.footer-title{font-size:14px;color:var(--copper-light);margin-bottom:16px}
.footer-links{display:grid;gap:10px;color:#c0bdb4;font-size:14px}
.footer-links a:hover{color:var(--white)}
.footer-bottom{border-top:1px solid #393a36;padding-top:20px;color:#918f88;font-size:12px;display:flex;justify-content:space-between;gap:20px}
@media(max-width:900px){
  .nav-links{gap:18px}.hero-grid,.story-grid,.value-layout,.latest-layout,.faq-layout{grid-template-columns:1fr;gap:42px}
  .hero{padding-top:60px}.hero-visual{max-width:680px}.topic-grid{grid-template-columns:1fr 1fr}.topic-card:first-child{grid-column:span 2}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .container{width:min(100% - 34px,var(--max))}
  .site-header{height:70px}.navbar{gap:12px}.logo-text{font-size:14px}.logo-mark{width:31px;height:31px}
  .nav-action{display:none}.menu-toggle{display:block}
  .nav-links{display:none;position:fixed;top:70px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:16px 22px 24px;flex-direction:column;align-items:stretch;gap:0}
  .menu-open .nav-links{display:flex}.nav-links a{padding:15px 0;border-bottom:1px solid var(--line)}.nav-links a:after{bottom:0}
  .hero h1{font-size:clamp(40px,12vw,58px)}.hero-copy{font-size:16px}.hero-visual,.hero-image{min-height:350px;height:350px}
  .visual-panel{left:15px;bottom:16px}.hero-stamp{right:10px}
  .info-strip{grid-template-columns:1fr 1fr;margin-top:35px}.info-item{padding:15px;border-bottom:1px solid var(--line)}.info-item:nth-child(2){border-right:0}
  .section{padding:68px 0}.section-head{display:block;margin-bottom:28px}.section-intro{margin-top:18px}
  .story-photos img{height:285px}.story-photos img:last-child{height:180px}.topic-grid{grid-template-columns:1fr}.topic-card:first-child{grid-column:auto}
  .latest-layout{gap:30px}.post-item{grid-template-columns:80px 1fr 18px;gap:12px}.post-item h3{font-size:16px}
  .cta-inner{display:block}.cta .btn{margin-top:25px}.footer-top{grid-template-columns:1fr;gap:30px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
}
@media(max-width:480px){
  .hero-actions{align-items:stretch;flex-direction:column;gap:15px}.hero-actions .btn{width:100%}.hero-note{align-self:flex-start}
  .hero-visual{min-height:290px;height:290px}.hero-image{height:290px}.visual-panel{width:190px;padding:16px}.visual-panel .number{font-size:34px}
  .info-item strong{font-size:15px}.info-item span{font-size:12px}.index-row{grid-template-columns:35px 1fr 20px;gap:10px}.index-row h3{font-size:16px}
  .story-photos{gap:8px}.story-photos img{height:230px}.story-photos img:last-child{height:145px}
}

/* roulang page: category1 */
:root{
      --ink:#20211f;
      --ink-soft:#4f514c;
      --muted:#777970;
      --paper:#f5f2eb;
      --paper-deep:#ebe5d9;
      --white:#fffdf8;
      --copper:#a66a3f;
      --copper-light:#d8b18e;
      --line:#d8d2c7;
      --shadow:0 14px 34px rgba(42,35,25,.08);
      --radius:16px;
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7}
    body.menu-open{overflow:hidden}
    h1,h2,h3,p{margin:0}
    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:0 auto}
    .site-header{height:82px;border-bottom:1px solid var(--line);background:rgba(245,242,235,.97);position:sticky;top:0;z-index:20}
    .navbar{height:100%;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .logo-mark{width:35px;height:35px;border:1px solid var(--copper);display:grid;place-items:center;color:var(--copper);font-family:Georgia,serif;font-size:17px}
    .logo-text small{display:block;color:var(--copper);font:11px/1.2 Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
    .nav-links{display:flex;align-items:center;gap:34px;margin-left:auto}
    .nav-links a{font-size:15px;color:var(--ink-soft);padding:28px 0;position:relative}
    .nav-links a:after{content:"";position:absolute;left:0;right:100%;bottom:18px;height:2px;background:var(--copper);transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink)}
    .nav-links a:hover:after,.nav-links a.active:after{right:0}
    .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--ink);background:var(--ink);color:var(--white);padding:12px 20px;border-radius:8px;font-weight:700;transition:.25s}
    .nav-action{font-size:14px;padding:10px 16px;margin-left:8px}
    .btn:hover,.nav-action:hover{background:var(--copper);border-color:var(--copper);transform:translateY(-2px);color:var(--white)}
    .btn:active,.nav-action:active{transform:translateY(0)}
    .btn-outline{background:transparent;color:var(--ink);border-color:var(--copper)}
    .btn-outline:hover{color:var(--white)}
    .btn-link{background:transparent;border:0;color:var(--copper);padding:0;font-weight:700}
    .btn:focus-visible,.nav-action:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(166,106,63,.35);outline-offset:4px}
    .menu-toggle{display:none;border:1px solid var(--line);background:transparent;width:44px;height:44px;border-radius:8px;color:var(--ink);font-size:20px}
    .crumbs{padding-top:28px;font-size:13px;color:var(--muted)}
    .crumbs a{color:var(--copper)}
    .crumbs span{padding:0 9px;color:var(--line)}
    .archive-hero{padding:38px 0 78px}
    .archive-grid{display:grid;grid-template-columns:1fr .82fr;gap:82px;align-items:center}
    .eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--copper);font:700 12px/1.3 Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:1px;background:var(--copper)}
    .archive-hero h1{font-size:clamp(40px,5vw,64px);line-height:1.15;letter-spacing:-.045em;margin:20px 0}
    .archive-hero h1 em{font-style:normal;color:var(--copper)}
    .hero-copy{font-size:18px;color:var(--ink-soft);max-width:610px}
    .hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:32px}
    .hero-note{font-size:14px;color:var(--muted);border-bottom:1px solid var(--copper-light);padding-bottom:3px}
    .archive-visual{position:relative}
    .archive-visual img{height:355px;width:100%;object-fit:cover;border-radius:var(--radius);filter:saturate(.78)}
    .visual-index{position:absolute;left:-18px;bottom:-20px;background:var(--ink);color:var(--white);padding:20px 24px;min-width:190px}
    .visual-index small{display:block;color:var(--copper-light);font:11px Arial,sans-serif;letter-spacing:.12em;text-transform:uppercase}
    .visual-index strong{display:block;font-size:23px;margin-top:5px}
    .section{padding:96px 0}
    .section-alt{background:var(--paper-deep)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
    .section h2{font-size:clamp(30px,4vw,45px);line-height:1.2;letter-spacing:-.035em;margin-top:14px}
    .section-intro{max-width:450px;color:var(--ink-soft)}
    .archive-lead{display:grid;grid-template-columns:.8fr 1.2fr;gap:76px;align-items:start}
    .lead-copy{font-size:21px;line-height:1.65;color:var(--ink-soft)}
    .lead-copy strong{color:var(--ink)}
    .keyword-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
    .keyword-item{padding:25px 20px;border-right:1px solid var(--line)}
    .keyword-item:last-child{border-right:0}
    .keyword-item b{display:block;color:var(--copper);font:18px Georgia,serif;margin-bottom:8px}
    .keyword-item h3{font-size:19px;margin-bottom:5px}
    .keyword-item p{font-size:14px;color:var(--muted)}
    .feature-layout{display:grid;grid-template-columns:.93fr 1.07fr;gap:75px;align-items:center}
    .feature-image{position:relative}
    .feature-image img{width:100%;height:410px;object-fit:cover;border-radius:14px}
    .feature-label{position:absolute;right:-15px;top:24px;background:var(--paper);border:1px solid var(--copper);color:var(--copper);padding:9px 13px;font-size:12px}
    .feature-copy h2{margin-bottom:20px}
    .feature-copy>p{color:var(--ink-soft);max-width:560px}
    .check-list{list-style:none;border-top:1px solid var(--line);margin:25px 0 31px;padding:0}
    .check-list li{padding:13px 0;border-bottom:1px solid var(--line);display:flex;gap:14px}
    .check-list li:before{content:"✓";color:var(--copper);font-weight:bold}
    .index-list{border-top:1px solid var(--ink)}
    .index-row{display:grid;grid-template-columns:58px 1fr auto;gap:22px;align-items:center;border-bottom:1px solid var(--line);padding:22px 0}
    .index-row b{font:18px Georgia,serif;color:var(--copper)}
    .index-row h3{font-size:19px;margin-bottom:3px}
    .index-row p{font-size:14px;color:var(--muted)}
    .index-arrow{font-size:22px;color:var(--copper);transition:.2s}
    .index-row:hover .index-arrow{transform:translateX(5px)}
    .timeline{position:relative;padding-left:34px;border-left:1px solid var(--copper-light)}
    .timeline-item{position:relative;padding:0 0 34px 28px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--copper);left:-40px;top:8px;border:3px solid var(--paper)}
    .timeline-item time{font:12px Arial,sans-serif;letter-spacing:.1em;color:var(--copper)}
    .timeline-item h3{font-size:21px;margin:6px 0}
    .timeline-item p{color:var(--muted);font-size:15px;max-width:700px}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:90px}
    .faq-list{border-top:1px solid var(--ink)}
    .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:23px;color:var(--copper);transition:.25s}
    .faq-answer{display:none;color:var(--muted);font-size:15px;padding:0 45px 21px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:58px 0;background:var(--ink);color:var(--white)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:clamp(27px,3.5vw,42px);line-height:1.25;margin:12px 0}
    .cta p{color:#d8d4cb;max-width:590px}
    .cta .btn{background:var(--copper);border-color:var(--copper)}
    .cta .btn:hover{background:var(--white);border-color:var(--white);color:var(--ink)}
    .site-footer{padding:60px 0 24px;background:#1a1b19;color:var(--white)}
    .footer-top{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:60px;padding-bottom:48px;border-bottom:1px solid #41413c}
    .footer-brand .logo{margin-bottom:18px}
    .footer-brand p{color:#bdbbb3;font-size:14px;max-width:300px}
    .footer-title{color:var(--copper-light);font-size:13px;font-weight:700;margin-bottom:16px}
    .footer-links{display:flex;flex-direction:column;gap:9px;color:#d0cec6;font-size:14px}
    .footer-links a{transition:.2s}
    .footer-links a:hover{color:var(--copper-light);transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#92928b;font-size:12px}
    @media(max-width:900px){
      .nav-links{gap:20px}
      .archive-grid,.feature-layout{gap:45px}
      .faq-layout{gap:45px}
      .keyword-strip{grid-template-columns:repeat(2,1fr)}
      .keyword-item:nth-child(2){border-right:0}
      .keyword-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 36px))}
      .site-header{height:72px}
      .nav-links{display:none;position:absolute;top:72px;left:0;right:0;padding:15px 18px 24px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}
      .nav-links.open{display:flex}
      .nav-links a{padding:15px 5px}
      .nav-links a:after{bottom:8px}
      .nav-action{margin-left:auto;padding:9px 12px;font-size:12px}
      .menu-toggle{display:block;order:4}
      .archive-hero{padding:30px 0 65px}
      .archive-grid,.archive-lead,.feature-layout,.faq-layout{grid-template-columns:1fr}
      .archive-visual{margin:12px 0 20px 18px}
      .archive-visual img{height:300px}
      .section{padding:70px 0}
      .section-head{display:block;margin-bottom:30px}
      .section-intro{margin-top:18px}
      .feature-copy{order:-1}
      .cta-inner{display:block}
      .cta .btn{margin-top:25px}
      .footer-top{grid-template-columns:1fr 1fr;gap:35px}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 28px)}
      .logo{gap:8px;font-size:14px}
      .logo-mark{width:31px;height:31px}
      .logo-text small{font-size:9px}
      .nav-action{display:none}
      .archive-hero h1{font-size:40px}
      .hero-copy{font-size:16px}
      .hero-actions{gap:16px}
      .btn{width:100%;padding:12px 16px}
      .hero-note{margin-left:3px}
      .keyword-strip{grid-template-columns:1fr}
      .keyword-item{border-right:0;border-bottom:1px solid var(--line)!important}
      .keyword-item:last-child{border-bottom:0!important}
      .index-row{grid-template-columns:38px 1fr 20px;gap:10px}
      .index-row h3{font-size:17px}
      .index-row p{font-size:13px}
      .visual-index{left:-10px}
      .footer-top{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }

/* roulang page: article */
:root{
      --ink:#20211f;
      --ink-soft:#4f514c;
      --muted:#777970;
      --paper:#f5f2eb;
      --paper-deep:#ebe5d9;
      --white:#fffdf8;
      --copper:#a66a3f;
      --copper-light:#d8b18e;
      --line:#d8d2c7;
      --shadow:0 14px 34px rgba(42,35,25,.08);
      --radius:16px;
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;font-size:16px}
    body.menu-open{overflow:hidden}
    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:0 auto}
    .site-header{height:82px;border-bottom:1px solid var(--line);background:rgba(245,242,235,.97);position:sticky;top:0;z-index:20}
    .navbar{height:100%;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .logo-mark{width:35px;height:35px;border:1px solid var(--copper);display:grid;place-items:center;color:var(--copper);font-family:Georgia,serif;font-size:17px}
    .logo-text small{display:block;color:var(--copper);font:11px/1.2 Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
    .nav-links{display:flex;align-items:center;gap:34px;margin-left:auto}
    .nav-links a{font-size:15px;color:var(--ink-soft);padding:28px 0;position:relative}
    .nav-links a:after{content:"";position:absolute;left:0;right:100%;bottom:18px;height:2px;background:var(--copper);transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink)}
    .nav-links a:hover:after,.nav-links a.active:after{right:0}
    .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--ink);background:var(--ink);color:var(--white);padding:12px 20px;border-radius:8px;font-weight:700;transition:.25s}
    .nav-action{font-size:14px;padding:10px 16px}
    .btn:hover,.nav-action:hover{background:var(--copper);border-color:var(--copper);transform:translateY(-2px);color:var(--white)}
    .btn:active,.nav-action:active{transform:translateY(0)}
    .btn-outline{background:transparent;color:var(--ink);border-color:var(--copper)}
    .btn-outline:hover{color:var(--white)}
    .btn-link{background:transparent;border:0;color:var(--copper);padding:0;font-weight:700}
    .btn:focus-visible,.nav-action:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(166,106,63,.35);outline-offset:4px}
    .menu-toggle{display:none;border:1px solid var(--line);background:transparent;width:44px;height:44px;border-radius:8px;color:var(--ink)}
    .article-hero{padding:54px 0 46px;border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
    .breadcrumb a:hover{color:var(--copper)}
    .breadcrumb .slash{color:var(--copper)}
    .article-heading{max-width:900px}
    .eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--copper);font:700 12px/1.3 Arial,sans-serif;letter-spacing:.14em;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:1px;background:var(--copper)}
    .article-heading h1{font-size:clamp(36px,5vw,62px);line-height:1.2;letter-spacing:-.045em;margin:18px 0 20px;max-width:880px}
    .article-summary{font-size:18px;color:var(--ink-soft);max-width:780px;margin:0}
    .article-meta{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;margin-top:27px;color:var(--muted);font-size:14px}
    .tag{display:inline-block;border:1px solid var(--copper-light);padding:3px 10px;color:var(--copper);font-size:12px;background:rgba(216,177,142,.1)}
    .cover-wrap{margin-top:42px;height:300px;overflow:hidden;border-radius:var(--radius);position:relative}
    .cover-wrap img{width:100%;height:100%;object-fit:cover;filter:saturate(.78)}
    .cover-wrap:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,33,31,.3),transparent 65%)}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 240px;gap:72px;align-items:start;padding:78px 0 100px}
    .article-content{font-size:17px;line-height:2;min-width:0}
    .article-content h2{font-size:30px;line-height:1.35;margin:48px 0 18px;letter-spacing:-.02em}
    .article-content h3{font-size:22px;line-height:1.45;margin:34px 0 12px}
    .article-content p{margin:0 0 22px;color:#3f413c}
    .article-content ul,.article-content ol{padding-left:25px;margin:20px 0 28px}
    .article-content li{padding:5px 0;color:#3f413c}
    .article-content blockquote{margin:32px 0;padding:22px 26px;border-left:3px solid var(--copper);background:var(--paper-deep);color:var(--ink-soft)}
    .article-content img{width:100%;border-radius:12px;margin:30px 0}
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;background:var(--white);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(--paper-deep);color:var(--ink)}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:42px 0}
    .article-aside{position:sticky;top:112px;border-top:1px solid var(--ink);padding-top:18px}
    .aside-title{font-weight:800;margin-bottom:15px}
    .aside-note{font-size:14px;color:var(--muted);margin:0 0 20px}
    .keyword-list{display:flex;flex-wrap:wrap;gap:8px}
    .keyword-list span{font-size:12px;border:1px solid var(--line);padding:5px 9px;color:var(--ink-soft);background:var(--white)}
    .article-empty{padding:70px 30px;text-align:center;border:1px solid var(--line);background:var(--white);border-radius:var(--radius)}
    .article-empty h2{margin:0 0 12px;font-size:30px}
    .article-empty p{color:var(--muted);margin-bottom:25px}
    .after-article{border-top:1px solid var(--line);padding:32px 0 88px}
    .article-links{display:flex;justify-content:space-between;gap:20px}
    .article-link{border:1px solid var(--line);background:var(--white);padding:19px 22px;border-radius:12px;min-width:220px;transition:.25s}
    .article-link:hover{border-color:var(--copper);transform:translateY(-3px);box-shadow:var(--shadow)}
    .article-link small{display:block;color:var(--copper);font-size:12px;margin-bottom:4px}
    .article-link strong{font-size:15px}
    .cta{background:var(--ink);color:var(--white);padding:48px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:30px;line-height:1.3;margin:0 0 9px}
    .cta p{color:#d8d4cb;margin:0}
    .cta .btn{background:var(--copper);border-color:var(--copper)}
    .cta .btn:hover{background:var(--white);border-color:var(--white);color:var(--ink)}
    .site-footer{padding:58px 0 24px;background:var(--paper-deep);border-top:1px solid var(--line)}
    .footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:55px;padding-bottom:45px}
    .footer-brand p{color:var(--muted);font-size:14px;max-width:310px;margin-top:18px}
    .footer-title{font-weight:800;margin-bottom:15px}
    .footer-links{display:flex;flex-direction:column;gap:9px;color:var(--muted);font-size:14px}
    .footer-links a{transition:.2s}
    .footer-links a:hover{color:var(--copper);transform:translateX(3px)}
    .footer-bottom{border-top:1px solid var(--line);padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}
    @media(max-width:900px){
      .nav-action{display:none}
      .article-layout{grid-template-columns:1fr;gap:42px}
      .article-aside{position:static;order:-1}
      .article-aside .keyword-list{max-width:600px}
      .footer-top{gap:30px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 34px))}
      .site-header{height:70px}
      .navbar{gap:12px}
      .logo{font-size:14px}
      .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 17px 18px;flex-direction:column;align-items:stretch;gap:0}
      .nav-links.open{display:flex}
      .nav-links a{padding:14px 0}
      .nav-links a:after{bottom:7px}
      .menu-toggle{display:block;margin-left:auto}
      .article-hero{padding:38px 0 32px}
      .article-heading h1{font-size:38px}
      .cover-wrap{height:210px;margin-top:30px}
      .article-layout{padding:48px 0 65px}
      .article-content{font-size:16px}
      .article-content h2{font-size:26px;margin-top:38px}
      .article-links{flex-direction:column}
      .article-link{width:100%}
      .cta-inner{align-items:flex-start;flex-direction:column}
      .footer-top{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:7px}
    }
    @media(max-width:480px){
      .article-heading h1{font-size:32px}
      .article-summary{font-size:16px}
      .article-meta{gap:8px 14px}
      .footer-top{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .cta{padding:38px 0}
      .cta h2{font-size:25px}
    }