/* roulang page: index */
:root{
  --bg:#0f0d0c;
  --bg-2:#151110;
  --panel:#191514;
  --panel-2:#221b19;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.12);
  --text:#f5efe9;
  --muted:#c9beb5;
  --muted-2:#9d9186;
  --accent:#c85e63;
  --accent-2:#d8b36b;
  --accent-3:#7f3942;
  --ok:#79c9a9;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 12px 26px rgba(0,0,0,.22);
  --radius:20px;
  --radius-sm:16px;
  --container:1280px;
  --gap:24px;
  --gap-lg:36px;
  --section:88px;
  --header-h:78px;
  --transition:220ms cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  background:
    radial-gradient(1200px 500px at 20% -10%, rgba(200,94,99,.18), transparent 60%),
    radial-gradient(900px 420px at 90% 10%, rgba(216,179,107,.12), transparent 55%),
    linear-gradient(180deg, #131010 0%, #0f0d0c 100%);
  color:var(--text);
  line-height:1.75;
  letter-spacing:.2px;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
::selection{background:rgba(200,94,99,.28);color:#fff}
.sr-only{
  position:absolute!important;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  border:0;white-space:nowrap;
}
.container{
  width:min(var(--container), calc(100% - 40px));
  margin:0 auto;
}
.section{
  padding:var(--section) 0;
  scroll-margin-top:calc(var(--header-h) + 18px);
}
.section-tight{padding:64px 0}
.section-header{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-title{
  margin:0;
  font-size:clamp(26px, 3vw, 40px);
  line-height:1.12;
  letter-spacing:.2px;
}
.section-lead{
  margin:10px 0 0;
  color:var(--muted);
  max-width:66ch;
  font-size:16px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 14px;
  margin-bottom:16px;
  border:1px solid rgba(216,179,107,.24);
  background:rgba(216,179,107,.08);
  color:#f1dcc0;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.8px;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(200,94,99,.16);
}
.lead{
  font-size:18px;
  color:var(--muted);
  margin:0;
}
.small-note{color:var(--muted-2);font-size:14px}
.divider{
  width:100%;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
  border:0;
  margin:0;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.3px;
  color:#f5ded1;
  background:rgba(200,94,99,.12);
  border:1px solid rgba(200,94,99,.18);
  white-space:nowrap;
}
.badge.gold{
  color:#f4dfb4;
  background:rgba(216,179,107,.12);
  border-color:rgba(216,179,107,.18);
}
.badge.soft{
  color:#d7cec5;
  background:rgba(255,255,255,.06);
  border-color:var(--line);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:50px;
  padding:0 20px;
  border-radius:999px;
  border:1px solid transparent;
  transition:transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition), opacity var(--transition);
  font-weight:700;
  letter-spacing:.2px;
  white-space:nowrap;
  user-select:none;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,
.site-nav a:focus-visible,
.nav-toggle:focus-visible,
.card-link:focus-visible,
summary:focus-visible{
  outline:2px solid rgba(216,179,107,.8);
  outline-offset:3px;
}
.btn-primary{
  color:#241415;
  background:linear-gradient(135deg, #e2bf77 0%, #c85e63 100%);
  box-shadow:0 10px 26px rgba(200,94,99,.25);
}
.btn-primary:hover{box-shadow:0 16px 34px rgba(200,94,99,.32)}
.btn-secondary{
  color:var(--text);
  border-color:rgba(255,255,255,.14);
  background:rgba(255,255,255,.03);
}
.btn-secondary:hover{
  border-color:rgba(216,179,107,.32);
  background:rgba(216,179,107,.08);
}
.btn-ghost{
  color:var(--muted);
  border-color:rgba(255,255,255,.10);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
}
.header{
  position:sticky;
  top:0;
  z-index:60;
  backdrop-filter:blur(14px);
  background:rgba(15,13,12,.72);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--text);
  font-weight:900;
  letter-spacing:.2px;
}
.brand-mark{
  width:42px;
  height:42px;
  flex:0 0 42px;
  border-radius:14px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.22), transparent 36%),
    linear-gradient(135deg, rgba(200,94,99,.95), rgba(216,179,107,.92));
  box-shadow:0 12px 28px rgba(200,94,99,.24);
  position:relative;
}
.brand-mark::before,
.brand-mark::after{
  content:"";
  position:absolute;
  inset:10px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.28);
}
.brand-mark::after{
  inset:16px;
  border-radius:8px;
  border-color:rgba(255,255,255,.18);
}
.brand-name{
  font-size:18px;
  line-height:1.1;
}
.brand-sub{
  display:block;
  margin-top:2px;
  color:var(--muted-2);
  font-size:12px;
  font-weight:600;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:10px;
}
.site-nav a{
  padding:10px 14px;
  border-radius:999px;
  color:var(--muted);
  border:1px solid transparent;
  transition:background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.site-nav a:hover{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.08);
  transform:translateY(-1px);
}
.site-nav a.active{
  color:#241415;
  background:linear-gradient(135deg, rgba(226,191,119,.95), rgba(200,94,99,.92));
  border-color:transparent;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:48px;
  height:48px;
  border-radius:14px;
  color:var(--text);
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
  transition:transform var(--transition), background var(--transition), border-color var(--transition);
}
.nav-toggle:hover{
  transform:translateY(-1px);
  border-color:rgba(216,179,107,.28);
  background:rgba(216,179,107,.08);
}
.nav-overlay{
  display:none;
}
.hero{
  position:relative;
  padding:36px 0 20px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:28px;
  align-items:stretch;
}
.hero-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:22px 0;
}
.hero h1{
  margin:0;
  font-size:clamp(36px, 5vw, 64px);
  line-height:1.05;
  letter-spacing:-.4px;
}
.hero p{
  margin:18px 0 0;
  color:var(--muted);
  max-width:62ch;
  font-size:17px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.hero-point{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:999px;
  color:#eee4d8;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.hero-point::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent-2);
  box-shadow:0 0 0 4px rgba(216,179,107,.12);
}
.hero-visual{
  position:relative;
  min-height:560px;
}
.hero-frame{
  position:relative;
  height:100%;
  min-height:560px;
  border-radius:28px;
  overflow:hidden;
  background:
    linear-gradient(180deg, rgba(10,8,8,.08), rgba(10,8,8,.78)),
    url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow);
  isolation:isolate;
}
.hero-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(135deg, rgba(15,13,12,.12), rgba(15,13,12,.52)),
    radial-gradient(600px 300px at 30% 10%, rgba(216,179,107,.16), transparent 50%);
  pointer-events:none;
}
.hero-cover{
  position:absolute;
  right:18px;
  bottom:18px;
  width:min(46%, 320px);
  aspect-ratio:4/5;
  object-fit:cover;
  border-radius:24px;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 18px 34px rgba(0,0,0,.38);
}
.hero-bubble{
  position:absolute;
  left:18px;
  top:18px;
  max-width:240px;
  padding:16px 16px 14px;
  border-radius:20px;
  background:rgba(15,13,12,.62);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-soft);
  z-index:2;
}
.hero-bubble .label{
  color:#f4dfb4;
  font-size:12px;
  font-weight:800;
  letter-spacing:.8px;
}
.hero-bubble .title{
  margin:8px 0 0;
  font-size:18px;
  line-height:1.35;
  font-weight:800;
}
.hero-bubble .desc{
  margin:8px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.65;
}
.hero-bubble.small{
  left:auto;
  right:18px;
  top:18px;
  width:210px;
}
.hero-stack{
  position:absolute;
  left:18px;
  bottom:18px;
  display:grid;
  gap:10px;
  width:calc(100% - 36px);
  max-width:340px;
  z-index:2;
}
.hero-stat{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 16px;
  border-radius:18px;
  background:rgba(20,16,15,.74);
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(10px);
}
.hero-stat strong{
  display:block;
  font-size:15px;
}
.hero-stat span{
  color:var(--muted);
  font-size:13px;
}
.quick-strip{
  margin-top:18px;
}
.quick-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:16px;
}
.mini-card{
  padding:20px;
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.mini-card .mini-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.mini-icon{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  background:rgba(200,94,99,.12);
  color:#f6d9cc;
  border:1px solid rgba(200,94,99,.18);
  font-size:18px;
}
.mini-card h3{
  margin:14px 0 8px;
  font-size:18px;
  line-height:1.3;
}
.mini-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.featured{
  padding-top:28px;
}
.mosaic{
  display:grid;
  grid-template-columns:repeat(12, 1fr);
  gap:18px;
}
.feature-card{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  min-height:250px;
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-soft);
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.feature-card:hover{
  transform:translateY(-4px);
  border-color:rgba(216,179,107,.24);
  box-shadow:0 18px 36px rgba(0,0,0,.28);
}
.feature-card.large{
  grid-column:span 6;
  min-height:360px;
}
.feature-card.small{
  grid-column:span 4;
}
.feature-media{
  position:absolute;
  inset:0;
  background:#111;
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.02) contrast(1.02);
  transform:scale(1.02);
}
.feature-overlay{
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(12,10,10,.06) 0%, rgba(12,10,10,.28) 40%, rgba(12,10,10,.88) 100%);
}
.feature-body{
  position:relative;
  z-index:2;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  height:100%;
  padding:24px;
}
.feature-body h3{
  margin:12px 0 8px;
  font-size:clamp(22px, 2.3vw, 34px);
  line-height:1.15;
}
.feature-body p{
  margin:0;
  max-width:52ch;
  color:#e4ddd6;
  font-size:15px;
  line-height:1.7;
}
.feature-foot{
  margin-top:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#f5e0bf;
  font-weight:800;
}
.card-link::after{
  content:"→";
  transition:transform var(--transition);
}
.feature-card:hover .card-link::after{transform:translateX(4px)}
.feature-mini{
  position:absolute;
  top:18px;
  left:18px;
  z-index:2;
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.feature-tag{
  display:inline-flex;
  align-items:center;
  padding:6px 10px;
  border-radius:999px;
  background:rgba(15,13,12,.54);
  border:1px solid rgba(255,255,255,.12);
  color:#f4dfd0;
  font-size:12px;
  font-weight:700;
  backdrop-filter:blur(8px);
}
.latest{
  padding-top:18px;
}
.news-list{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:16px;
}
.news-card{
  display:block;
  padding:22px;
  border-radius:24px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}
.news-card:hover{
  transform:translateY(-3px);
  border-color:rgba(216,179,107,.24);
  box-shadow:0 18px 36px rgba(0,0,0,.28);
  background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.04));
}
.news-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:16px;
}
.news-head time{
  color:var(--muted-2);
  font-size:13px;
  white-space:nowrap;
}
.news-card h3{
  margin:0 0 10px;
  font-size:20px;
  line-height:1.35;
}
.news-card p{
  margin:0;
  color:var(--muted);
  font-size:15px;
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:56px;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:18px;
}
.news-meta .link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#f5e0bf;
  font-weight:800;
}
.news-meta .link::after{
  content:"→";
  transition:transform var(--transition);
}
.news-card:hover .news-meta .link::after{transform:translateX(4px)}
.empty-state{
  padding:32px 24px;
  border-radius:24px;
  border:1px dashed rgba(255,255,255,.14);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  text-align:center;
  font-size:16px;
}
.shelf-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:18px;
}
.shelf-card{
  position:relative;
  overflow:hidden;
  min-height:240px;
  border-radius:24px;
  border:1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(12,10,10,.14), rgba(12,10,10,.8)),
    var(--panel);
  box-shadow:var(--shadow-soft);
  transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.shelf-card:hover{
  transform:translateY(-3px);
  border-color:rgba(200,94,99,.22);
  box-shadow:0 18px 36px rgba(0,0,0,.28);
}
.shelf-card img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.02) brightness(.78);
}
.shelf-body{
  position:relative;
  z-index:2;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:24px;
}
.shelf-body h3{
  margin:10px 0 8px;
  font-size:22px;
  line-height:1.2;
}
.shelf-body p{
  margin:0;
  color:#e6ded7;
  max-width:42ch;
  font-size:15px;
  line-height:1.7;
}
.shelf-body .card-link{margin-top:16px}
.faq-list{
  display:grid;
  gap:14px;
}
.faq-item{
  overflow:hidden;
  border-radius:20px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-soft);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-weight:800;
  color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  width:32px;
  height:32px;
  border-radius:10px;
  display:grid;
  place-items:center;
  color:#f4dfb4;
  background:rgba(216,179,107,.08);
  border:1px solid rgba(216,179,107,.16);
  transition:transform var(--transition), background var(--transition);
  flex:0 0 auto;
}
.faq-item[open] summary::after{
  content:"–";
  transform:rotate(0deg);
}
.faq-item[open] summary{
  border-bottom:1px solid rgba(255,255,255,.08);
}
.faq-content{
  padding:0 20px 18px;
  color:var(--muted);
  line-height:1.8;
}
.cta{
  padding:0 0 92px;
}
.cta-box{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  border:1px solid rgba(255,255,255,.10);
  background:
    radial-gradient(800px 260px at 20% 20%, rgba(200,94,99,.16), transparent 55%),
    radial-gradient(800px 260px at 80% 20%, rgba(216,179,107,.12), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  box-shadow:var(--shadow);
}
.cta-inner{
  padding:34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta h2{
  margin:0;
  font-size:clamp(28px, 3vw, 44px);
  line-height:1.15;
}
.cta p{
  margin:12px 0 0;
  color:var(--muted);
  max-width:60ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}
.footer{
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(9,8,8,.58);
  padding:32px 0 26px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.3fr .7fr .9fr;
  gap:22px;
  align-items:start;
}
.footer-title{
  margin:0 0 12px;
  font-size:18px;
  line-height:1.25;
}
.footer-text{
  margin:0;
  color:var(--muted);
  line-height:1.8;
  font-size:14px;
}
.footer-links{
  display:grid;
  gap:10px;
}
.footer-links a{
  color:var(--muted);
  width:fit-content;
  transition:color var(--transition), transform var(--transition);
}
.footer-links a:hover{
  color:var(--text);
  transform:translateX(3px);
}
.footer-meta{
  margin-top:26px;
  padding-top:16px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 18px;
  justify-content:space-between;
  align-items:center;
  color:var(--muted-2);
  font-size:13px;
  border-top:1px solid rgba(255,255,255,.08);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:10px;
}
@media (max-width: 1100px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{min-height:520px}
  .feature-card.large{grid-column:span 12}
  .feature-card.small{grid-column:span 6}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width: 920px){
  .site-nav{
    position:fixed;
    top:var(--header-h);
    right:16px;
    left:16px;
    display:grid;
    gap:8px;
    padding:16px;
    border-radius:24px;
    background:rgba(17,14,13,.96);
    border:1px solid rgba(255,255,255,.10);
    box-shadow:var(--shadow);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity var(--transition), transform var(--transition);
    z-index:70;
  }
  .site-nav a{
    width:100%;
    justify-content:flex-start;
    padding:12px 14px;
  }
  .nav-toggle{display:inline-flex}
  .nav-overlay{
    display:block;
    position:fixed;
    inset:var(--header-h) 0 0 0;
    background:rgba(0,0,0,.46);
    opacity:0;
    pointer-events:none;
    transition:opacity var(--transition);
    z-index:65;
  }
  body.nav-open .site-nav{
    opacity:1;
    pointer-events:auto;
    transform:translateY(0);
  }
  body.nav-open .nav-overlay{
    opacity:1;
    pointer-events:auto;
  }
  .quick-grid{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .shelf-grid{grid-template-columns:1fr}
  .cta-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .cta-actions{justify-content:flex-start}
}
@media (max-width: 720px){
  :root{
    --section:72px;
    --header-h:72px;
  }
  .container{width:min(calc(100% - 28px), var(--container))}
  .header-inner{min-height:72px}
  .brand-name{font-size:16px}
  .brand-mark{width:38px;height:38px;flex-basis:38px}
  .hero{padding-top:24px}
  .hero h1{font-size:clamp(30px, 9vw, 44px)}
  .hero p{font-size:16px}
  .hero-visual{min-height:470px}
  .hero-frame{min-height:470px}
  .hero-cover{
    width:min(52%, 260px);
    right:14px;
    bottom:14px;
  }
  .hero-bubble{
    left:14px;
    top:14px;
    max-width:220px;
    padding:14px;
  }
  .hero-bubble.small{right:14px;top:auto;bottom:14px;left:auto;width:188px}
  .hero-stack{left:14px;bottom:14px;width:calc(100% - 28px)}
  .mosaic{gap:14px}
  .feature-card.large,
  .feature-card.small{grid-column:span 12}
  .feature-card{min-height:220px}
  .feature-card.large{min-height:330px}
  .feature-body{padding:20px}
  .section-header{
    flex-direction:column;
    align-items:flex-start;
    margin-bottom:20px;
  }
  .cta-inner{padding:26px}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width: 520px){
  .hero-actions .btn,
  .cta-actions .btn{
    width:100%;
  }
  .hero-point{
    width:100%;
    justify-content:flex-start;
  }
  .news-card,
  .mini-card,
  .shelf-body,
  .faq-item summary,
  .faq-content{
    padding-left:16px;
    padding-right:16px;
  }
  .news-card h3{font-size:18px}
  .news-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .cta-inner{padding:22px}
  .footer-meta{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation:none!important;
    transition:none!important;
  }
}

/* roulang page: article */
:root{
      --bg:#0f0d0c;
      --bg-2:#151110;
      --panel:#191514;
      --panel-2:#221b19;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(255,255,255,.12);
      --text:#f5efe9;
      --muted:#c9beb5;
      --muted-2:#9d9186;
      --accent:#c85e63;
      --accent-2:#d8b36b;
      --accent-3:#7f3942;
      --ok:#79c9a9;
      --shadow:0 18px 50px rgba(0,0,0,.35);
      --shadow-soft:0 12px 26px rgba(0,0,0,.22);
      --radius:20px;
      --radius-sm:16px;
      --container:1280px;
      --gap:24px;
      --gap-lg:36px;
      --section:88px;
      --header-h:72px;
      --transition:220ms cubic-bezier(.2,.8,.2,1);
    }
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      background:
        radial-gradient(1200px 500px at 20% -10%, rgba(200,94,99,.18), transparent 60%),
        radial-gradient(900px 420px at 90% 10%, rgba(216,179,107,.12), transparent 55%),
        linear-gradient(180deg, #131010 0%, #0f0d0c 100%);
      color:var(--text);
      line-height:1.75;
      letter-spacing:.2px;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .sr-only{
      position:absolute!important;
      width:1px;height:1px;
      padding:0;margin:-1px;
      overflow:hidden;clip:rect(0,0,0,0);
      white-space:nowrap;border:0;
    }
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .section{
      padding:var(--section) 0;
      scroll-margin-top:calc(var(--header-h) + 18px);
    }
    .section-tight{padding:64px 0}
    .section-header{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:28px;
    }
    .section-title{
      margin:0;
      font-size:clamp(26px, 3vw, 40px);
      line-height:1.12;
      letter-spacing:.2px;
    }
    .section-lead{
      margin:10px 0 0;
      color:var(--muted);
      max-width:68ch;
      font-size:16px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 14px;
      margin-bottom:16px;
      border:1px solid rgba(216,179,107,.24);
      background:rgba(216,179,107,.08);
      color:#f1dcc0;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.8px;
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(200,94,99,.16);
      flex:0 0 8px;
    }
    .lead{
      font-size:18px;
      color:var(--muted);
      margin:0;
    }
    .divider{
      width:100%;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
      border:0;
      margin:0;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:700;
      letter-spacing:.3px;
      color:#f5ded1;
      background:rgba(200,94,99,.12);
      border:1px solid rgba(200,94,99,.18);
      white-space:nowrap;
    }
    .badge.gold{
      color:#f4dfb4;
      background:rgba(216,179,107,.12);
      border-color:rgba(216,179,107,.18);
    }
    .badge.soft{
      color:#d7cec5;
      background:rgba(255,255,255,.06);
      border-color:var(--line);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:50px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      transition:transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition), opacity var(--transition);
      font-weight:700;
      letter-spacing:.2px;
      white-space:nowrap;
      user-select:none;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(1px)}
    .btn:focus-visible,
    .site-nav a:focus-visible,
    .nav-toggle:focus-visible,
    .card-link:focus-visible,
    summary:focus-visible,
    .footer-links a:focus-visible,
    .inline-link:focus-visible{
      outline:2px solid rgba(216,179,107,.8);
      outline-offset:3px;
    }
    .btn-primary{
      color:#241415;
      background:linear-gradient(135deg, #e2bf77 0%, #c85e63 100%);
      box-shadow:0 10px 26px rgba(200,94,99,.25);
    }
    .btn-primary:hover{box-shadow:0 16px 34px rgba(200,94,99,.32)}
    .btn-secondary{
      color:var(--text);
      border-color:rgba(255,255,255,.14);
      background:rgba(255,255,255,.03);
    }
    .btn-secondary:hover{
      border-color:rgba(216,179,107,.32);
      background:rgba(216,179,107,.08);
    }
    .btn-ghost{
      color:var(--muted);
      border-color:rgba(255,255,255,.10);
      background:rgba(255,255,255,.02);
    }
    .btn-ghost:hover{
      color:var(--text);
      border-color:rgba(255,255,255,.16);
      background:rgba(255,255,255,.05);
    }
    .header{
      position:sticky;
      top:0;
      z-index:60;
      backdrop-filter:blur(14px);
      background:rgba(15,13,12,.72);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      position:relative;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      color:var(--text);
      font-weight:900;
      letter-spacing:.2px;
      flex:0 0 auto;
    }
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 42px;
      border-radius:14px;
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.22), transparent 36%),
        linear-gradient(135deg, rgba(200,94,99,.95), rgba(216,179,107,.92));
      box-shadow:0 12px 28px rgba(200,94,99,.24);
      position:relative;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border-radius:10px;
      border:1px solid rgba(255,255,255,.28);
    }
    .brand-mark::after{
      inset:16px;
      border-radius:8px;
      border-color:rgba(255,255,255,.18);
    }
    .brand-name{
      font-size:18px;
      line-height:1.1;
      display:block;
    }
    .brand-sub{
      display:block;
      margin-top:2px;
      color:var(--muted-2);
      font-size:12px;
      font-weight:600;
    }
    .nav-panel{
      display:flex;
      align-items:center;
      gap:12px;
      position:relative;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .site-nav a{
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      transition:background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
    }
    .site-nav a:hover{
      color:var(--text);
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    .site-nav a.active{
      color:#241415;
      background:linear-gradient(135deg, rgba(226,191,119,.95), rgba(200,94,99,.92));
      border-color:transparent;
    }
    .nav-toggle{
      display:none;
      align-items:center;
      justify-content:center;
      width:48px;
      height:48px;
      border-radius:14px;
      color:var(--text);
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.03);
      transition:transform var(--transition), background var(--transition), border-color var(--transition);
    }
    .nav-toggle:hover{
      border-color:rgba(216,179,107,.24);
      background:rgba(255,255,255,.06);
      transform:translateY(-1px);
    }
    .nav-overlay{
      display:none;
    }
    .article-hero{
      position:relative;
      overflow:hidden;
      padding-top:28px;
      padding-bottom:48px;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(15,13,12,.18) 0%, rgba(15,13,12,.82) 78%, rgba(15,13,12,1) 100%),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      opacity:.26;
      pointer-events:none;
    }
    .article-hero .container{
      position:relative;
      z-index:1;
    }
    .article-hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);
      gap:var(--gap-lg);
      align-items:stretch;
    }
    .article-hero-copy,
    .article-hero-media,
    .surface-card,
    .article-shell,
    .aside-card,
    .post-card,
    .cta-box{
      background:linear-gradient(180deg, rgba(25,21,20,.96), rgba(20,17,16,.96));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .article-hero-copy{
      padding:28px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      min-height:430px;
      position:relative;
    }
    .article-breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      font-size:13px;
      color:var(--muted-2);
      margin-bottom:18px;
    }
    .article-breadcrumb a{
      color:var(--muted);
    }
    .article-breadcrumb a:hover{color:var(--text)}
    .article-breadcrumb .sep{
      color:rgba(255,255,255,.24);
    }
    .article-title{
      margin:0;
      font-size:clamp(30px, 4vw, 52px);
      line-height:1.12;
      letter-spacing:.2px;
    }
    .article-lead{
      margin:18px 0 0;
      max-width:62ch;
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
    }
    .article-meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .article-hero-media{
      display:flex;
      flex-direction:column;
      min-height:430px;
    }
    .hero-cover{
      position:relative;
      flex:1 1 auto;
      min-height:280px;
      background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00));
    }
    .hero-cover img{
      width:100%;
      height:100%;
      min-height:280px;
      object-fit:cover;
    }
    .hero-cover::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 44%, rgba(15,13,12,.74) 100%);
      pointer-events:none;
    }
    .media-card-body{
      padding:20px;
      display:grid;
      gap:14px;
      background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00));
    }
    .media-title{
      margin:0;
      font-size:20px;
      line-height:1.3;
    }
    .media-note{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .mini-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .mini-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      font-size:14px;
    }
    .mini-list li::before{
      content:"";
      width:8px;height:8px;
      border-radius:50%;
      margin-top:8px;
      flex:0 0 8px;
      background:linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
      box-shadow:0 0 0 4px rgba(200,94,99,.10);
    }
    .article-main{
      padding-top:0;
    }
    .article-grid{
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);
      gap:var(--gap-lg);
      align-items:start;
    }
    .article-shell{
      padding:28px;
    }
    .article-content-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      margin-bottom:20px;
    }
    .article-kicker{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
    }
    .article-note{
      padding:16px 18px;
      border-radius:18px;
      border:1px solid rgba(216,179,107,.14);
      background:rgba(216,179,107,.07);
      color:#f1dcc0;
      margin-bottom:22px;
      font-size:14px;
      line-height:1.85;
    }
    .article-body{
      color:var(--text);
      font-size:17px;
      line-height:1.92;
      max-width:760px;
    }
    .article-body > :first-child{margin-top:0}
    .article-body > :last-child{margin-bottom:0}
    .article-body h2,
    .article-body h3,
    .article-body h4{
      color:var(--text);
      line-height:1.35;
      margin:1.8em 0 .7em;
      font-weight:800;
      letter-spacing:.1px;
    }
    .article-body h2{font-size:clamp(22px,2.3vw,30px)}
    .article-body h3{font-size:clamp(18px,1.8vw,24px)}
    .article-body p{
      margin:0 0 1em;
      color:var(--muted);
    }
    .article-body a{
      color:#f2d08d;
      text-decoration:underline;
      text-underline-offset:2px;
      transition:opacity var(--transition), color var(--transition);
    }
    .article-body a:hover{color:#ffe1aa;opacity:.9}
    .article-body img{
      max-width:100%;
      height:auto;
      border-radius:18px;
      margin:18px 0;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .article-body figure{
      margin:20px 0;
    }
    .article-body figcaption{
      margin-top:8px;
      color:var(--muted-2);
      font-size:13px;
      text-align:center;
    }
    .article-body ul,
    .article-body ol{
      margin:0 0 1em 1.1em;
      padding:0;
      color:var(--muted);
    }
    .article-body li{margin:.45em 0}
    .article-body blockquote{
      margin:24px 0;
      padding:18px 20px;
      border-left:3px solid var(--accent);
      background:rgba(255,255,255,.03);
      color:#e8ddd4;
      border-radius:16px;
    }
    .article-body hr{
      border:0;
      height:1px;
      margin:28px 0;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent);
    }
    .article-body code{
      padding:.18em .45em;
      border-radius:8px;
      color:#f4dfb4;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      font-size:.94em;
    }
    .article-body pre{
      overflow:auto;
      padding:18px 20px;
      border-radius:18px;
      background:#0d0b0a;
      border:1px solid var(--line);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
      color:#eadfd5;
      font-size:14px;
      line-height:1.8;
    }
    .article-body table{
      width:100%;
      border-collapse:collapse;
      margin:20px 0;
      overflow:hidden;
      border-radius:16px;
      border:1px solid var(--line);
      display:block;
    }
    .article-body thead,
    .article-body tbody,
    .article-body tr{
      display:table;
      width:100%;
      table-layout:fixed;
    }
    .article-body th,
    .article-body td{
      padding:12px 14px;
      border-bottom:1px solid var(--line);
      color:var(--muted);
      text-align:left;
      background:rgba(255,255,255,.015);
    }
    .article-body th{
      color:var(--text);
      background:rgba(255,255,255,.04);
    }
    .article-body tr:last-child td{border-bottom:0}
    .empty-state{
      padding:32px 18px 8px;
      text-align:left;
    }
    .empty-state h2{
      margin:0 0 10px;
      font-size:28px;
      color:var(--text);
    }
    .empty-state p{
      margin:0 0 20px;
      color:var(--muted);
      max-width:52ch;
    }
    .aside-column{
      display:grid;
      gap:18px;
      position:relative;
    }
    .aside-sticky{
      position:sticky;
      top:calc(var(--header-h) + 20px);
    }
    .aside-card{
      padding:22px;
    }
    .aside-title{
      margin:0 0 12px;
      font-size:20px;
      line-height:1.25;
    }
    .aside-text{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.85;
    }
    .check-list{
      display:grid;
      gap:12px;
      margin-top:16px;
    }
    .check-item{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .check-item::before{
      content:"";
      width:9px;
      height:9px;
      flex:0 0 9px;
      margin-top:8px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
      box-shadow:0 0 0 4px rgba(200,94,99,.12);
    }
    .aside-cover{
      margin:14px 0 0;
      border-radius:18px;
      overflow:hidden;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .aside-cover img{
      width:100%;
      height:180px;
      object-fit:cover;
    }
    .aside-caption{
      padding:14px 16px 16px;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
      background:rgba(255,255,255,.02);
    }
    .stack-links{
      display:grid;
      gap:10px;
      margin-top:16px;
    }
    .inline-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:14px 16px;
      border-radius:16px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.03);
      color:var(--text);
      transition:transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
    }
    .inline-link:hover{
      transform:translateY(-1px);
      border-color:rgba(216,179,107,.22);
      background:rgba(255,255,255,.05);
      box-shadow:0 10px 26px rgba(0,0,0,.18);
    }
    .inline-link small{
      display:block;
      color:var(--muted-2);
      margin-top:2px;
    }
    .arrow{
      color:var(--accent-2);
      font-size:20px;
      line-height:1;
    }
    .latest-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:20px;
    }
    .post-card{
      display:flex;
      flex-direction:column;
      min-height:100%;
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .post-card:hover{
      transform:translateY(-3px);
      border-color:rgba(216,179,107,.22);
      box-shadow:0 18px 40px rgba(0,0,0,.28);
    }
    .post-thumb{
      position:relative;
      aspect-ratio:16/10;
      overflow:hidden;
      background:#191514;
    }
    .post-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform 380ms ease;
    }
    .post-card:hover .post-thumb img{transform:scale(1.03)}
    .post-thumb::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 40%, rgba(15,13,12,.72) 100%);
    }
    .post-body{
      padding:20px;
      display:grid;
      gap:12px;
    }
    .post-title{
      margin:0;
      font-size:20px;
      line-height:1.35;
    }
    .post-summary{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.85;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
      min-height:3.7em;
    }
    .post-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      justify-content:space-between;
      margin-top:2px;
      color:var(--muted-2);
      font-size:12px;
    }
    .post-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#f2d08d;
      font-weight:700;
      margin-top:2px;
    }
    .post-link::after{
      content:"→";
      transition:transform var(--transition);
    }
    .post-card:hover .post-link::after{transform:translateX(2px)}
    .faq-list{
      display:grid;
      gap:16px;
    }
    details.faq-item{
      background:linear-gradient(180deg, rgba(25,21,20,.96), rgba(20,17,16,.96));
      border:1px solid var(--line);
      border-radius:20px;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      font-weight:800;
      font-size:18px;
      color:var(--text);
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary::after{
      content:"+";
      font-size:24px;
      color:var(--accent-2);
      line-height:1;
    }
    details.faq-item[open] summary::after{
      content:"−";
    }
    .faq-content{
      padding:0 22px 22px;
      color:var(--muted);
      font-size:15px;
      line-height:1.9;
    }
    .cta-box{
      padding:32px;
      background:
        radial-gradient(700px 220px at 10% 0%, rgba(200,94,99,.18), transparent 65%),
        linear-gradient(180deg, rgba(25,21,20,.98), rgba(20,17,16,.98));
    }
    .cta-inner{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:24px;
      flex-wrap:wrap;
    }
    .cta-copy{
      max-width:62ch;
    }
    .cta-title{
      margin:0;
      font-size:clamp(26px, 3vw, 38px);
      line-height:1.18;
    }
    .cta-text{
      margin:14px 0 0;
      color:var(--muted);
      font-size:16px;
      line-height:1.9;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:4px;
    }
    .footer{
      border-top:1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(180deg, rgba(14,12,11,.88), rgba(11,9,8,1));
      padding:44px 0 20px;
    }
    .footer-top{
      display:grid;
      grid-template-columns:1.4fr .8fr 1fr;
      gap:28px;
      align-items:start;
    }
    .footer-title{
      margin:0 0 14px;
      font-size:16px;
      color:var(--text);
    }
    .footer-text{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.9;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      transition:color var(--transition), transform var(--transition);
      width:fit-content;
    }
    .footer-links a:hover{
      color:var(--text);
      transform:translateX(2px);
    }
    .footer-meta{
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      padding-top:18px;
      margin-top:28px;
      border-top:1px solid rgba(255,255,255,.08);
      color:var(--muted-2);
      font-size:13px;
    }
    .clamp-2{
      display:-webkit-box;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
      overflow:hidden;
    }
    @media (max-width: 1199.98px){
      .article-hero-grid,
      .article-grid{
        grid-template-columns:1fr;
      }
      .aside-sticky{
        position:static;
      }
      .latest-grid{
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
      .footer-top{
        grid-template-columns:1fr 1fr;
      }
    }
    @media (max-width: 991.98px){
      .section{padding:72px 0}
      .article-hero-copy,
      .article-hero-media{
        min-height:auto;
      }
      .article-title{
        font-size:clamp(28px, 5vw, 44px);
      }
      .header-inner{
        gap:14px;
      }
      .site-nav a{
        padding:9px 12px;
      }
    }
    @media (max-width: 767.98px){
      :root{
        --section:68px;
        --header-h:70px;
      }
      .container{
        width:min(var(--container), calc(100% - 24px));
      }
      .brand-name{
        font-size:16px;
      }
      .brand-sub{
        font-size:11px;
      }
      .btn{
        min-height:46px;
        padding:0 16px;
      }
      .site-nav{
        display:none;
      }
      .nav-toggle{
        display:inline-flex;
      }
      .header.nav-open .site-nav{
        display:flex;
        position:absolute;
        top:calc(var(--header-h) + 10px);
        right:0;
        left:0;
        flex-direction:column;
        gap:8px;
        padding:14px;
        background:rgba(23,19,18,.98);
        border:1px solid var(--line);
        border-radius:20px;
        box-shadow:var(--shadow);
        z-index:70;
      }
      .header.nav-open .site-nav a{
        width:100%;
        text-align:center;
      }
      .header.nav-open .btn-primary{
        display:none;
      }
      .header.nav-open .nav-overlay{
        display:block;
        position:fixed;
        inset:var(--header-h) 0 0;
        background:rgba(0,0,0,.34);
        backdrop-filter:blur(2px);
        z-index:55;
      }
      .article-hero{
        padding-top:20px;
      }
      .article-hero-copy{
        padding:22px;
      }
      .article-hero-media{
        min-height:auto;
      }
      .hero-cover img{
        min-height:220px;
      }
      .media-card-body{
        padding:18px;
      }
      .article-shell,
      .aside-card,
      .cta-box{
        padding:20px;
      }
      .article-body{
        font-size:16px;
        line-height:1.9;
      }
      .latest-grid{
        grid-template-columns:1fr;
      }
      .section-header{
        flex-direction:column;
        align-items:flex-start;
      }
      .footer-top{
        grid-template-columns:1fr;
      }
      .footer-meta{
        flex-direction:column;
      }
      .cta-inner{
        flex-direction:column;
      }
      .cta-actions{
        width:100%;
      }
      .cta-actions .btn{
        width:100%;
      }
      .hero-actions{
        width:100%;
      }
      .hero-actions .btn{
        width:100%;
      }
    }
    @media (max-width: 479.98px){
      .article-title{
        font-size:clamp(26px, 8vw, 36px);
      }
      .article-lead,
      .cta-text,
      .section-lead{
        font-size:15px;
      }
      .post-title{
        font-size:18px;
      }
      details.faq-item summary{
        font-size:16px;
        padding:18px 18px;
      }
      .faq-content{
        padding:0 18px 18px;
      }
      .article-breadcrumb{
        font-size:12px;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}