/* roulang page: index */
:root{
  --orange:#c85a32;
  --orange-deep:#a84527;
  --green:#315b57;
  --ink:#26302f;
  --muted:#697370;
  --paper:#f6f3ed;
  --cream:#eee9df;
  --white:#fffdf9;
  --line:#ddd9d0;
  --dark:#202a29;
  --shadow:0 16px 38px rgba(38,48,47,.09);
  --radius:18px;
  --container:1200px;
}
*{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",Arial,sans-serif;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,243,237,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.header-inner{height:78px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:12px;min-width:max-content}
.logo-mark{width:38px;height:38px;border-radius:10px;background:var(--orange);color:#fff;display:grid;place-items:center;font-size:19px;font-weight:800;transform:rotate(-6deg)}
.logo-text{font-weight:750;letter-spacing:.02em;line-height:1.2}
.logo-text small{display:block;font-size:10px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;color:#53605d;font-size:14px;padding:26px 0;transition:color .2s}
.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--orange);transition:right .2s}
.main-nav a:hover,.main-nav a.active{color:var(--orange-deep)}
.main-nav a:hover:after,.main-nav a.active:after{right:0}
.header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}
.header-action,.btn-primary{background:var(--orange);color:#fff;box-shadow:0 7px 16px rgba(200,90,50,.18)}
.header-action:hover,.btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px)}
.btn-secondary{background:transparent;border-color:var(--green);color:var(--green)}
.btn-secondary:hover{background:#e3ebe7;transform:translateY(-2px)}
.btn:active,.header-action:active{transform:translateY(0)}
.btn:focus-visible,.header-action:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid rgba(200,90,50,.35);outline-offset:3px}
.menu-toggle{display:none;background:none;border:0;color:var(--green);font-size:27px}
.hero{padding:90px 0 76px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:72px;align-items:center}
.eyebrow,.section-kicker{color:var(--orange-deep);font-size:13px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.eyebrow span{color:var(--green)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(42px,5.4vw,68px);line-height:1.12;letter-spacing:-.055em;margin:18px 0 24px;font-weight:760}
h2{font-size:clamp(30px,3.6vw,43px);line-height:1.22;letter-spacing:-.035em;margin:12px 0 17px}
h3{font-size:21px;line-height:1.35;margin:0 0 9px}
.hero-copy{max-width:690px;color:var(--muted);font-size:18px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-visual{position:relative}
.hero-image{height:465px;overflow:hidden;border-radius:24px;box-shadow:var(--shadow);background:var(--cream)}
.hero-image img{width:100%;height:100%;object-fit:cover}
.visual-note{position:absolute;left:-28px;bottom:28px;background:var(--white);border:1px solid var(--line);padding:18px 20px;border-radius:12px;box-shadow:var(--shadow);max-width:205px}
.visual-note strong{display:block;color:var(--green);font-size:20px}
.visual-note small{color:var(--muted)}
.keyword-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;color:var(--muted)}
.keyword-strip .container{display:flex;gap:27px;flex-wrap:wrap;align-items:center}
.keyword-strip b{color:var(--green);font-size:14px}
.section{padding:105px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
.section-head p{max-width:520px;color:var(--muted);margin-bottom:3px}
.index-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;gap:0;border-top:1px solid var(--line)}
.index-item{padding:27px 22px 22px 0;border-right:1px solid var(--line);margin-right:22px}
.index-item:last-child{border-right:0;margin-right:0}
.index-number{color:var(--orange);font-weight:800;font-size:13px;margin-bottom:18px}
.index-item p{font-size:14px;color:var(--muted);margin:0 0 17px}
.text-link{color:var(--green);font-size:14px;font-weight:750}
.text-link span{display:inline-block;transition:transform .2s}
.text-link:hover{text-decoration:underline}.text-link:hover span{transform:translateX(4px)}
.feature-wrap{display:grid;grid-template-columns:5fr 7fr;gap:22px}
.feature-card{position:relative;min-height:430px;border-radius:var(--radius);overflow:hidden;background:var(--dark);color:#fff}
.feature-card img{width:100%;height:100%;object-fit:cover;opacity:.68;transition:transform .35s}
.feature-card:hover img{transform:scale(1.04)}
.feature-content{position:absolute;inset:auto 30px 28px;max-width:430px}
.feature-content p{color:#e5e8e2;margin-bottom:18px}
.feature-content .tag{background:#f3d5c8;color:#7c321e}
.side-cards{display:grid;gap:22px}
.info-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px;display:flex;gap:22px;align-items:center;transition:transform .2s,box-shadow .2s}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.info-card img{width:145px;height:125px;border-radius:12px;object-fit:cover;flex:none;background:var(--cream)}
.info-card p{color:var(--muted);font-size:14px;margin:0 0 13px}
.tag{display:inline-block;padding:3px 9px;background:#f3e2d9;color:var(--orange-deep);font-size:12px;border-radius:999px;margin-bottom:12px}
.dark-section{background:var(--dark);color:#fff}
.dark-section .section-kicker{color:#ef9b73}
.dark-section .section-head p{color:#b9c4bd}
.focus-grid{display:grid;grid-template-columns:7fr 5fr;gap:70px;align-items:start}
.focus-word{font-size:clamp(70px,10vw,138px);line-height:.95;font-weight:800;letter-spacing:-.08em;color:#f4b095;word-break:break-all}
.focus-copy{border-left:1px solid #52605b;padding-left:30px;color:#cbd2cc}
.focus-copy h3{color:#fff}
.focus-links{margin-top:28px;border-top:1px solid #52605b}
.focus-links a{display:flex;justify-content:space-between;align-items:center;padding:15px 0;border-bottom:1px solid #52605b;color:#e9eee8}
.focus-links a:hover{color:#f4b095;padding-left:5px}
.content-layout{display:grid;grid-template-columns:3fr 9fr;gap:65px}
.content-aside p{color:var(--muted);font-size:14px}
.content-aside .btn{margin-top:12px}
.post-list{border-top:1px solid var(--line)}
.post-row{display:grid;grid-template-columns:55px 1fr auto;gap:20px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line);transition:padding .2s}
.post-row:hover{padding-left:8px}
.post-no{font-size:20px;color:var(--orange);font-weight:800}
.post-meta{font-size:12px;color:var(--muted);display:flex;gap:13px;margin-top:8px}
.post-row h3{font-size:19px}.post-row p{color:var(--muted);font-size:14px;margin:0}
.post-arrow{font-size:22px;color:var(--green)}
.empty-state{padding:28px 0;color:var(--muted);border-bottom:1px solid var(--line)}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:80px}
.faq-intro p{color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;list-style:none;font-weight:700;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";color:var(--orange);font-size:24px;line-height:1}
details[open] summary:after{content:"−"}
details p{color:var(--muted);font-size:15px;padding:12px 35px 0 0;margin:0}
.cta{background:var(--orange);color:#fff;padding:58px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:35px}
.cta h2{margin-bottom:7px}.cta p{margin:0;color:#fff0e9}
.cta .btn{background:#fff;color:var(--orange-deep)}
.cta .btn:hover{background:#fff3ed}
.contact-section{padding:88px 0}
.contact-grid{display:grid;grid-template-columns:4fr 8fr;gap:75px}
.contact-intro p{color:var(--muted)}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:17px}
.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:700}.field input,.field textarea{width:100%;background:var(--white);border:1px solid var(--line);border-radius:8px;padding:12px 14px;color:var(--ink);transition:border .2s,box-shadow .2s}
.field textarea{min-height:120px;resize:vertical}.field input:hover,.field textarea:hover{border-color:#b8b1a5}.field input:focus,.field textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(200,90,50,.12);outline:0}
.form-hint{grid-column:1/-1;color:var(--muted);font-size:13px}.form-state{display:none}
.contact-form .btn{justify-self:start;border:0}
.site-footer{background:#182120;color:#d8ded8;padding:58px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:45px}
.footer-logo{font-size:19px;font-weight:750;color:#fff}.footer-brand p{color:#9eaaa4;font-size:14px;max-width:280px}
.site-footer h3{font-size:14px;color:#fff;margin-bottom:15px}.footer-links{display:grid;gap:8px}.footer-links a{color:#aeb9b2;font-size:14px}.footer-links a:hover{color:#f0a27f;text-decoration:underline}
.footer-bottom{border-top:1px solid #394541;padding-top:20px;color:#8e9a94;font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
@media(max-width:1199px){.hero-grid{gap:42px}.main-nav{gap:18px}.footer-grid{grid-template-columns:2fr 1fr 1fr}}
@media(max-width:992px){.hero{padding-top:65px}.hero-grid,.focus-grid{grid-template-columns:1fr 1fr}.index-grid{grid-template-columns:1fr 1fr}.index-item:nth-child(2){border-right:0}.content-layout,.faq-grid,.contact-grid{grid-template-columns:1fr;gap:30px}.content-aside{max-width:560px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:767px){
  .container{width:min(100% - 34px,var(--container))}
  .header-inner{height:68px;gap:12px}.logo-text{font-size:14px}.logo-mark{width:34px;height:34px}.logo-text small{font-size:8px}
  .menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:18px 24px 28px;box-shadow:0 14px 25px rgba(38,48,47,.1);flex-direction:column;align-items:stretch;gap:0}
  .main-nav.open{display:flex}.main-nav a{padding:14px 0;border-bottom:1px solid var(--line)}.main-nav a:after{bottom:0}.header-action{display:none}
  .hero{padding:52px 0 55px}.hero-grid,.feature-wrap,.focus-grid{grid-template-columns:1fr}.hero-image{height:330px}.visual-note{left:15px;bottom:15px}.hero-copy{font-size:16px}
  h1{font-size:40px}.section{padding:70px 0}.section-head{display:block;margin-bottom:28px}.section-head p{margin-top:12px}.index-grid{grid-template-columns:1fr}.index-item{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:22px 0}.feature-card{min-height:350px}.info-card{align-items:flex-start}.info-card img{width:105px;height:100px}.focus-word{font-size:78px}.focus-copy{border-left:0;border-top:1px solid #52605b;padding:25px 0 0}
  .post-row{grid-template-columns:36px 1fr}.post-arrow{display:none}.post-row h3{font-size:17px}.post-row p{font-size:13px}.post-meta{flex-wrap:wrap;gap:5px 10px}
  .cta-inner{display:block}.cta .btn{margin-top:22px}.contact-section{padding:65px 0}.contact-form{grid-template-columns:1fr}.field.full,.form-hint{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
}
@media(max-width:520px){.hero-actions .btn{width:100%}.keyword-strip .container{gap:10px 18px}.info-card{display:block}.info-card img{width:100%;height:155px;margin-bottom:18px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: article */
:root{
      --orange:#c85a32;
      --orange-deep:#a84527;
      --green:#315b57;
      --ink:#26302f;
      --muted:#697370;
      --paper:#f6f3ed;
      --cream:#eee9df;
      --white:#fffdf9;
      --line:#ddd9d0;
      --dark:#202a29;
      --shadow:0 16px 38px rgba(38,48,47,.09);
      --shadow-soft:0 8px 24px rgba(38,48,47,.07);
      --radius:18px;
      --container:1200px;
    }
    *{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",Arial,sans-serif;
      font-size:16px;
      line-height:1.7;
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{font-weight:750;line-height:1.25;letter-spacing:-.025em}
    h1{font-size:clamp(38px,5vw,62px)}
    h2{font-size:clamp(29px,3.2vw,42px)}
    h3{font-size:21px}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--orange-deep)}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;background:rgba(246,243,237,.96);
      border-bottom:1px solid var(--line);backdrop-filter:blur(12px)
    }
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:12px;min-width:max-content}
    .logo-mark{
      width:38px;height:38px;border-radius:10px;background:var(--orange);color:#fff;
      display:grid;place-items:center;font-size:19px;font-weight:800;transform:rotate(-6deg)
    }
    .logo-text{font-weight:750;letter-spacing:.02em;line-height:1.2}
    .logo-text small{
      display:block;font-size:10px;color:var(--muted);letter-spacing:.14em;
      text-transform:uppercase;margin-top:3px
    }
    .main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
    .main-nav a{
      position:relative;color:#53605d;font-size:14px;padding:26px 0;transition:color .2s
    }
    .main-nav a:after{
      content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;
      background:var(--orange);transition:right .2s
    }
    .main-nav a:hover,.main-nav a.active{color:var(--orange-deep)}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-action,.btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;
      padding:0 20px;border-radius:9px;border:1px solid transparent;font-weight:700;
      transition:transform .2s,background .2s,box-shadow .2s
    }
    .header-action,.btn-primary{background:var(--orange);color:#fff;box-shadow:0 7px 16px rgba(200,90,50,.18)}
    .header-action:hover,.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px)}
    .btn-secondary{background:transparent;border-color:var(--green);color:var(--green)}
    .btn-secondary:hover{background:#e3ebe7;color:var(--green);transform:translateY(-2px)}
    .btn:active,.header-action:active{transform:translateY(0)}
    .btn:focus-visible,.header-action:focus-visible,a:focus-visible,input:focus-visible,
    textarea:focus-visible,summary:focus-visible{
      outline:3px solid rgba(200,90,50,.35);outline-offset:3px
    }
    .menu-toggle{
      display:none;background:none;border:0;color:var(--green);font-size:27px;
      line-height:1;padding:8px
    }
    .article-banner{padding:70px 0 76px;background:var(--cream);border-bottom:1px solid var(--line)}
    .crumbs{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:30px}
    .crumbs a:hover{text-decoration:underline}
    .crumbs .current{color:var(--green);max-width:360px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .banner-grid{display:grid;grid-template-columns:7fr 5fr;gap:64px;align-items:end}
    .eyebrow,.section-kicker{
      color:var(--orange-deep);font-size:13px;font-weight:800;letter-spacing:.13em;
      text-transform:uppercase
    }
    .article-title{max-width:780px;margin:13px 0 20px}
    .article-summary{max-width:700px;color:var(--muted);font-size:18px;margin-bottom:25px}
    .article-meta{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}
    .article-meta span+span{position:relative;padding-left:18px}
    .article-meta span+span:before{
      content:"";position:absolute;left:0;top:7px;width:4px;height:4px;
      border-radius:50%;background:var(--orange)
    }
    .banner-image{
      height:310px;border-radius:22px;overflow:hidden;background:var(--cream);
      box-shadow:var(--shadow)
    }
    .banner-image img{width:100%;height:100%;object-fit:cover}
    .article-section{padding:88px 0}
    .article-layout{display:grid;grid-template-columns:minmax(0,790px) 250px;gap:76px;align-items:start}
    .article-body{
      min-width:0;background:var(--white);border:1px solid var(--line);
      border-radius:var(--radius);padding:48px 56px;box-shadow:var(--shadow-soft)
    }
    .article-body h2{font-size:31px;margin:42px 0 17px;padding-top:10px}
    .article-body h3{font-size:22px;margin:30px 0 12px}
    .article-body p{color:#3c4744;font-size:17px;line-height:1.95;margin-bottom:23px}
    .article-body ul,.article-body ol{padding-left:24px;margin:20px 0 28px;color:#3c4744}
    .article-body li{padding:5px 0;line-height:1.85}
    .article-body blockquote{
      margin:30px 0;padding:20px 24px;border-left:4px solid var(--orange);
      background:#f8eee8;color:var(--green);font-size:18px;border-radius:0 10px 10px 0
    }
    .article-body img{width:100%;border-radius:13px;margin:28px 0 8px;background:var(--cream)}
    .article-body figure{margin:28px 0}
    .article-body figcaption{text-align:center;color:var(--muted);font-size:13px}
    .article-body table{width:100%;border-collapse:collapse;margin:25px 0}
    .article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
    .article-body th{background:var(--cream);color:var(--green)}
    .article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
    .article-body a{color:var(--orange-deep);text-decoration:underline;text-underline-offset:3px}
    .article-aside{position:sticky;top:108px}
    .aside-card{
      background:var(--white);border:1px solid var(--line);border-radius:15px;
      padding:23px
    }
    .aside-card h3{font-size:18px;margin-bottom:16px}
    .aside-card p{font-size:14px;color:var(--muted);margin-bottom:15px}
    .keyword-list{display:flex;flex-wrap:wrap;gap:8px}
    .tag{
      display:inline-block;padding:4px 10px;background:#f3e2d9;color:var(--orange-deep);
      font-size:12px;border-radius:999px
    }
    .aside-note{margin-top:17px;padding-top:17px;border-top:1px solid var(--line)}
    .post-nav{
      display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:25px
    }
    .post-nav a{
      display:block;padding:21px;background:var(--cream);border:1px solid var(--line);
      border-radius:13px;transition:transform .2s,box-shadow .2s
    }
    .post-nav a:hover{transform:translateY(-3px);box-shadow:var(--shadow-soft)}
    .post-nav small{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}
    .post-nav strong{font-size:15px;color:var(--green)}
    .empty-state{
      text-align:center;padding:70px 25px;background:var(--white);
      border:1px dashed var(--line);border-radius:var(--radius)
    }
    .empty-state .empty-mark{
      width:54px;height:54px;margin:0 auto 16px;border-radius:50%;
      display:grid;place-items:center;background:#f3e2d9;color:var(--orange);font-size:24px
    }
    .empty-state p{color:var(--muted);margin-bottom:22px}
    .cta{background:var(--orange);color:#fff;padding:58px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:35px}
    .cta h2{margin-bottom:7px}
    .cta p{margin:0;color:#fff0e9}
    .cta .btn{background:#fff;color:var(--orange-deep)}
    .cta .btn:hover{background:#fff3ed;color:var(--orange-deep)}
    .contact-section{padding:88px 0}
    .contact-grid{display:grid;grid-template-columns:4fr 8fr;gap:75px}
    .contact-copy p{color:var(--muted);max-width:360px}
    .contact-form{
      display:grid;grid-template-columns:1fr 1fr;gap:18px;background:var(--white);
      border:1px solid var(--line);border-radius:var(--radius);padding:30px
    }
    .field{display:flex;flex-direction:column;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;font-weight:700;color:var(--green)}
    .field input,.field textarea{
      width:100%;border:1px solid var(--line);background:#fbfaf6;border-radius:8px;
      padding:11px 13px;color:var(--ink);transition:border-color .2s,box-shadow .2s
    }
    .field textarea{min-height:105px;resize:vertical}
    .field input:hover,.field textarea:hover{border-color:#bbb8ae}
    .field input:focus,.field textarea:focus{
      border-color:var(--orange);box-shadow:0 0 0 3px rgba(200,90,50,.12);outline:0
    }
    .form-actions{grid-column:1/-1;display:flex;align-items:center;gap:16px;margin-top:4px}
    .form-tip{color:var(--muted);font-size:13px}
    .site-footer{background:var(--dark);color:#fff;padding:62px 0 22px}
    .footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr;gap:45px;padding-bottom:50px}
    .footer-logo{font-size:20px;font-weight:750;margin-bottom:12px}
    .footer-brand p{color:#b9c4bd;font-size:14px;max-width:280px}
    .site-footer h3{font-size:14px;color:#f3c1ad;margin-bottom:16px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#c4cec8;font-size:14px;transition:color .2s,padding-left .2s}
    .footer-links a:hover{color:#fff;padding-left:4px}
    .footer-bottom{
      border-top:1px solid #46504d;padding-top:18px;display:flex;
      justify-content:space-between;gap:20px;color:#9eaaa4;font-size:12px
    }
    .loading{opacity:.68;pointer-events:none}
    .disabled{opacity:.5;cursor:not-allowed}
    @media(max-width:1200px){
      .banner-grid{gap:40px}
      .article-layout{gap:38px}
    }
    @media(max-width:992px){
      .header-inner{gap:18px}
      .main-nav{gap:17px}
      .header-action{padding:0 14px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr)}
      .article-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px}
      .aside-note{margin-top:0;padding-top:0;border-top:0}
      .contact-grid{gap:35px}
      .footer-grid{grid-template-columns:2fr 1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .header-inner{height:68px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{
        display:none;position:absolute;top:68px;left:0;right:0;margin:0;padding:18px 20px 28px;
        background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);
        flex-direction:column;align-items:stretch;gap:0
      }
      .main-nav.open{display:flex}
      .main-nav a{padding:14px 0;font-size:16px}
      .main-nav a:after{bottom:5px}
      .header-action{display:none}
      .article-banner{padding:45px 0 52px}
      .banner-grid{grid-template-columns:1fr;gap:28px}
      .banner-image{height:245px}
      .article-summary{font-size:16px}
      .article-section{padding:55px 0}
      .article-body{padding:30px 22px}
      .article-body p{font-size:16px}
      .article-body h2{font-size:27px}
      .article-aside{grid-template-columns:1fr}
      .post-nav{grid-template-columns:1fr}
      .cta-inner{align-items:flex-start;flex-direction:column;gap:22px}
      .contact-section{padding:58px 0}
      .contact-grid{grid-template-columns:1fr;gap:30px}
      .contact-form{padding:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:7px}
    }
    @media(max-width:576px){
      h1{font-size:36px}
      .logo-text{font-size:14px}
      .logo-text small{font-size:8px}
      .logo-mark{width:34px;height:34px;font-size:16px}
      .article-meta{gap:9px;display:grid}
      .article-meta span+span{padding-left:0}
      .article-meta span+span:before{display:none}
      .form-actions{align-items:flex-start;flex-direction:column}
      .contact-form{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .form-actions{grid-column:auto}
    }

/* roulang page: category1 */
:root{
      --orange:#c85a32;
      --orange-deep:#a84527;
      --green:#315b57;
      --ink:#26302f;
      --muted:#697370;
      --paper:#f6f3ed;
      --cream:#eee9df;
      --white:#fffdf9;
      --line:#ddd9d0;
      --dark:#202a29;
      --shadow:0 16px 38px rgba(38,48,47,.09);
      --radius:18px;
      --container:1200px;
    }
    *{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",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25;letter-spacing:-.025em}
    h1{font-size:clamp(38px,5vw,62px);margin-bottom:22px}
    h2{font-size:clamp(29px,3.2vw,42px);margin-bottom:16px}
    h3{font-size:21px;margin-bottom:10px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,243,237,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:12px;min-width:max-content}
    .logo-mark{width:38px;height:38px;border-radius:10px;background:var(--orange);color:#fff;display:grid;place-items:center;font-size:19px;font-weight:800;transform:rotate(-6deg)}
    .logo-text{font-weight:750;letter-spacing:.02em;line-height:1.2}
    .logo-text small{display:block;font-size:10px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase;margin-top:3px}
    .main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
    .main-nav a{position:relative;color:#53605d;font-size:14px;padding:26px 0;transition:color .2s}
    .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--orange);transition:right .2s}
    .main-nav a:hover,.main-nav a.active{color:var(--orange-deep)}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}
    .header-action,.btn-primary{background:var(--orange);color:#fff;box-shadow:0 7px 16px rgba(200,90,50,.18)}
    .header-action:hover,.btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px)}
    .btn-secondary{background:transparent;border-color:var(--green);color:var(--green)}
    .btn-secondary:hover{background:#e3ebe7;transform:translateY(-2px)}
    .btn:active,.header-action:active{transform:translateY(0)}
    .btn:focus-visible,.header-action:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid rgba(200,90,50,.35);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;color:var(--green);font-size:27px}
    .section{padding:100px 0}
    .section-kicker,.eyebrow{color:var(--orange-deep);font-size:13px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
    .section-head p{max-width:540px;color:var(--muted);margin:0}
    .page-banner{padding:66px 0 72px;background:var(--cream);border-bottom:1px solid var(--line)}
    .banner-grid{display:grid;grid-template-columns:5fr 7fr;gap:70px;align-items:center}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:23px}
    .crumbs a:hover{color:var(--orange-deep);text-decoration:underline}
    .banner-copy p{color:var(--muted);font-size:18px;max-width:650px;margin-bottom:26px}
    .banner-image{height:280px;border-radius:22px;overflow:hidden;background:var(--cream);box-shadow:var(--shadow)}
    .banner-image img{width:100%;height:100%;object-fit:cover}
    .tags{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}
    .tag{display:inline-block;padding:3px 10px;background:#f3e2d9;color:var(--orange-deep);font-size:12px;border-radius:999px}
    .relation{background:var(--white);border-bottom:1px solid var(--line)}
    .relation-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;border-top:1px solid var(--line)}
    .relation-item{padding:28px 23px 27px 0;margin-right:22px;border-right:1px solid var(--line)}
    .relation-item:last-child{border-right:0;margin-right:0}
    .relation-item strong{display:block;color:var(--green);font-size:18px;margin-bottom:8px}
    .relation-item p{font-size:14px;color:var(--muted);margin-bottom:15px}
    .number{font-size:13px;color:var(--orange);font-weight:800;letter-spacing:.1em}
    .split{display:grid;grid-template-columns:5fr 7fr;gap:74px;align-items:center}
    .split-copy p{color:var(--muted);max-width:530px}
    .index-list{border-top:1px solid var(--line);margin-top:25px}
    .index-list a{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-bottom:1px solid var(--line);color:var(--green);font-weight:700}
    .index-list a:hover{padding-left:6px;color:var(--orange-deep)}
    .index-list span:last-child{transition:transform .2s}
    .index-list a:hover span:last-child{transform:translateX(5px)}
    .split-image{height:410px;border-radius:var(--radius);overflow:hidden;background:var(--cream);box-shadow:var(--shadow)}
    .split-image img{width:100%;height:100%;object-fit:cover}
    .topics{background:#e8ece5}
    .topic-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:22px}
    .topic-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .2s,box-shadow .2s}
    .topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .topic-card.large{display:grid;grid-template-columns:1fr 1fr;min-height:315px}
    .topic-card img{width:100%;height:100%;object-fit:cover;background:var(--cream)}
    .topic-content{padding:29px}
    .topic-content p{font-size:14px;color:var(--muted);margin-bottom:20px}
    .topic-side{display:grid;gap:22px}
    .topic-side .topic-card{display:grid;grid-template-columns:145px 1fr;min-height:146px}
    .topic-side .topic-content{padding:22px}
    .topic-side .topic-content p{margin-bottom:10px}
    .dark-section{background:var(--dark);color:#fff}
    .dark-section .section-kicker{color:#ef9b73}
    .dark-section p{color:#b9c4bd}
    .dark-grid{display:grid;grid-template-columns:7fr 5fr;gap:70px;align-items:start}
    .keyword-display{font-size:clamp(40px,6vw,78px);line-height:1.12;font-weight:800;color:#f4b095;word-break:break-word}
    .dark-list{border-top:1px solid #52605b}
    .dark-list a{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid #52605b;color:#e9eee8}
    .dark-list a:hover{color:#f4b095;padding-left:6px}
    .faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:80px}
    .faq-intro p{color:var(--muted)}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:20px 0}
    summary{display:flex;justify-content:space-between;gap:20px;cursor:pointer;font-weight:750;list-style:none}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";font-size:25px;color:var(--orange);line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:15px;margin:14px 36px 0 0}
    .cta{background:var(--orange);color:#fff;padding:58px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:35px}
    .cta h2{margin-bottom:7px}
    .cta p{margin:0;color:#fff0e9}
    .cta .btn{background:#fff;color:var(--orange-deep)}
    .cta .btn:hover{background:#fff3ed}
    .contact-section{padding:88px 0}
    .contact-grid{display:grid;grid-template-columns:4fr 8fr;gap:75px}
    .contact-copy p{color:var(--muted)}
    .form-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .field{display:flex;flex-direction:column;gap:7px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700}
    input,textarea{width:100%;border:1px solid var(--line);background:#faf8f2;border-radius:8px;padding:11px 13px;color:var(--ink);transition:border .2s,box-shadow .2s}
    textarea{min-height:120px;resize:vertical}
    input:hover,textarea:hover{border-color:#b9b4a9}
    input:focus,textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(200,90,50,.12);outline:0}
    .form-note{font-size:13px;color:var(--muted);margin:15px 0 0}
    .form-status{display:none;margin-top:14px;color:var(--green);font-size:14px}
    .form-status.show{display:block}
    .site-footer{background:var(--dark);color:#fff;padding:62px 0 25px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:38px}
    .footer-logo{font-size:20px;font-weight:800;margin-bottom:12px}
    .footer-brand p,.site-footer h3{color:#b9c4bd;font-size:14px}
    .site-footer h3{font-size:14px;margin-bottom:15px;color:#fff}
    .footer-links{display:grid;gap:9px;color:#b9c4bd;font-size:14px}
    .footer-links a:hover{color:#f4b095;text-decoration:underline}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #52605b;margin-top:45px;padding-top:18px;color:#9eaaa3;font-size:12px}
    @media(max-width:1199px){.banner-grid,.split,.dark-grid{gap:42px}.header-inner{gap:20px}.main-nav{gap:18px}}
    @media(max-width:991px){.header-action{display:none}.topic-grid{grid-template-columns:1fr}.topic-side{grid-template-columns:1fr 1fr}.faq-grid{gap:40px}.contact-grid{gap:35px}}
    @media(max-width:767px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .header-inner{height:68px}.main-nav{display:none;position:absolute;left:0;right:0;top:68px;padding:18px 24px 28px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{padding:13px 0}.main-nav a:after{bottom:7px}.menu-toggle{display:block;margin-left:auto}
      .page-banner{padding:42px 0 48px}.banner-grid,.split,.dark-grid,.faq-grid,.contact-grid{grid-template-columns:1fr}.banner-image{height:230px}.section,.contact-section{padding:68px 0}.relation-grid{grid-template-columns:1fr 1fr}.relation-item:nth-child(2){border-right:0}.relation-item:nth-child(n+3){border-top:1px solid var(--line)}.topic-card.large{grid-template-columns:1fr}.topic-card.large img{height:220px}.topic-side{grid-template-columns:1fr}.topic-side .topic-card{grid-template-columns:130px 1fr}.split-image{height:300px}.cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:5px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}}
    @media(max-width:520px){h1{font-size:37px}.relation-grid{grid-template-columns:1fr}.relation-item{border-right:0!important;margin-right:0;padding-right:0}.relation-item+ .relation-item{border-top:1px solid var(--line)}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.form-box{padding:21px}.topic-side .topic-card{grid-template-columns:110px 1fr}.topic-side .topic-content{padding:17px}}