/* roulang page: index */
:root{
  --bg:#f6f1e8;
  --bg-soft:#fbf7f0;
  --surface:#fffaf2;
  --surface-2:#1a1715;
  --surface-3:#241f1c;
  --text:#171514;
  --muted:#6e6760;
  --muted-2:#8b8278;
  --line:rgba(23,21,20,.10);
  --line-strong:rgba(23,21,20,.16);
  --brand:#c86b2d;
  --brand-2:#e4a23f;
  --brand-3:#8b4320;
  --brand-soft:rgba(200,107,45,.12);
  --ok:#4f8a5b;
  --shadow:0 18px 48px rgba(20,16,14,.08);
  --shadow-2:0 10px 28px rgba(20,16,14,.12);
  --radius:22px;
  --radius-sm:16px;
  --radius-xs:12px;
  --container:1240px;
  --gap:24px;
  --gap-sm:16px;
  --gap-xs:12px;
  --transition:180ms ease;
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 420px at 10% -10%, rgba(228,162,63,.18), transparent 55%),
    radial-gradient(700px 320px at 90% 8%, rgba(200,107,45,.10), transparent 46%),
    linear-gradient(180deg, #fcfaf6 0%, var(--bg) 100%);
  line-height:1.75;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
img{
  display:block;
  max-width:100%;
  height:auto;
}
a{
  color:inherit;
  text-decoration:none;
}
button,
input{
  font:inherit;
}
button{
  cursor:pointer;
}
::selection{
  background:rgba(200,107,45,.18);
}
.skip-link{
  position:absolute;
  left:-999px;
  top:8px;
  z-index:1000;
  padding:10px 14px;
  border-radius:999px;
  background:var(--surface-2);
  color:#fff;
}
.skip-link:focus{left:12px}
.container{
  width:min(var(--container), calc(100% - 32px));
  margin:0 auto;
}
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  backdrop-filter:saturate(140%) blur(16px);
  background:rgba(250,247,241,.82);
  border-bottom:1px solid rgba(23,21,20,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:16px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:14px;
  background:
    linear-gradient(145deg, rgba(255,255,255,.24), rgba(255,255,255,0)),
    linear-gradient(145deg, var(--surface-2), #39312d);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12), 0 12px 30px rgba(25,21,19,.18);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::before{
  content:"";
  position:absolute;
  inset:10px;
  border-radius:10px;
  background:linear-gradient(145deg, var(--brand-2), var(--brand));
  box-shadow:0 0 0 1px rgba(255,255,255,.1);
}
.brand-text{
  display:flex;
  flex-direction:column;
  gap:2px;
  min-width:0;
}
.brand-name{
  font-size:1.04rem;
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.2;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand-sub{
  color:var(--muted);
  font-size:.92rem;
  line-height:1.3;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  justify-content:center;
}
.nav a{
  padding:10px 14px;
  border-radius:999px;
  color:var(--muted);
  transition:background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.nav a:hover,
.nav a:focus-visible{
  background:rgba(200,107,45,.10);
  color:var(--text);
  transform:translateY(-1px);
}
.nav a.active{
  background:rgba(25,23,21,.92);
  color:#fff;
  box-shadow:0 10px 24px rgba(25,23,21,.18);
}
.header-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 18px;
  border-radius:999px;
  background:linear-gradient(145deg, var(--brand-2), var(--brand));
  color:#fff;
  font-weight:700;
  box-shadow:0 14px 30px rgba(200,107,45,.24);
  transition:transform var(--transition), filter var(--transition), box-shadow var(--transition);
  flex:0 0 auto;
}
.header-cta:hover,
.header-cta:focus-visible{
  transform:translateY(-1px);
  filter:saturate(1.02);
  box-shadow:0 18px 36px rgba(200,107,45,.26);
}
.header-cta:active{
  transform:translateY(0);
}
.hero{
  position:relative;
  overflow:hidden;
  padding:30px 0 8px;
}
.hero-panel{
  position:relative;
  border-radius:32px;
  overflow:hidden;
  background:
    linear-gradient(135deg, rgba(17,15,14,.88) 0%, rgba(17,15,14,.82) 42%, rgba(17,15,14,.56) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow:var(--shadow);
}
.hero-panel::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 260px at 82% 18%, rgba(228,162,63,.18), transparent 52%),
    linear-gradient(180deg, rgba(25,21,19,.10), rgba(25,21,19,.30));
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(320px,.88fr);
  gap:30px;
  align-items:center;
  padding:58px;
}
.hero-copy{
  color:#fff;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.90);
  font-size:.95rem;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.hero h1{
  margin:0 0 18px;
  font-size:clamp(2.2rem, 4.8vw, 4.6rem);
  line-height:1.08;
  letter-spacing:-.03em;
}
.hero p{
  margin:0;
  max-width:62ch;
  color:rgba(255,255,255,.82);
  font-size:1.04rem;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:0 20px;
  border-radius:14px;
  border:1px solid transparent;
  font-weight:700;
  transition:transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}
.btn-primary{
  background:linear-gradient(145deg, var(--brand-2), var(--brand));
  color:#fff;
  box-shadow:0 12px 26px rgba(200,107,45,.25);
}
.btn-primary:hover,
.btn-primary:focus-visible{
  transform:translateY(-1px);
  box-shadow:0 16px 30px rgba(200,107,45,.30);
}
.btn-secondary{
  background:rgba(255,255,255,.07);
  color:#fff;
  border-color:rgba(255,255,255,.18);
}
.btn-secondary:hover,
.btn-secondary:focus-visible{
  transform:translateY(-1px);
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.28);
}
.hero-meta{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:12px;
  margin-top:26px;
}
.meta-pill{
  padding:14px 14px 12px;
  border-radius:18px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.10);
}
.meta-pill strong{
  display:block;
  font-size:1.02rem;
  margin-bottom:4px;
}
.meta-pill span{
  color:rgba(255,255,255,.72);
  font-size:.92rem;
}
.hero-visual{
  position:relative;
  min-height:420px;
  border-radius:28px;
  overflow:hidden;
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 20px 40px rgba(0,0,0,.16);
}
.hero-visual img{
  width:100%;
  height:100%;
  object-fit:cover;
  min-height:420px;
  transform:scale(1.01);
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(17,15,14,.00) 25%, rgba(17,15,14,.62) 100%);
}
.visual-card{
  position:absolute;
  left:18px;
  right:18px;
  bottom:18px;
  z-index:1;
  padding:18px;
  border-radius:20px;
  background:rgba(20,16,14,.70);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(10px);
}
.visual-card h2{
  margin:0 0 8px;
  color:#fff;
  font-size:1.16rem;
  line-height:1.35;
}
.visual-card p{
  margin:0;
  color:rgba(255,255,255,.76);
  font-size:.95rem;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:32px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  color:#fff;
  border:1px solid rgba(255,255,255,.10);
  font-size:.88rem;
}
.section{
  padding:72px 0 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:24px;
}
.section-head h2{
  margin:0;
  font-size:clamp(1.5rem, 2.7vw, 2.2rem);
  line-height:1.15;
  letter-spacing:-.02em;
}
.section-head p{
  margin:0;
  color:var(--muted);
  max-width:58ch;
}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 14px;
  border-radius:999px;
  background:rgba(200,107,45,.10);
  color:var(--brand-3);
  font-weight:700;
  font-size:.92rem;
}
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:14px;
}
.stat-card{
  padding:20px;
  border-radius:22px;
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:0 10px 24px rgba(20,16,14,.04);
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.stat-card:hover{
  transform:translateY(-2px);
  border-color:rgba(200,107,45,.22);
  box-shadow:var(--shadow);
}
.stat-title{
  color:var(--muted);
  font-size:.92rem;
  margin-bottom:10px;
}
.stat-value{
  font-size:1.4rem;
  font-weight:800;
  color:var(--text);
  margin-bottom:6px;
}
.stat-desc{
  color:var(--muted);
  font-size:.95rem;
}
.feature-grid{
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);
  gap:24px;
}
.feature-main,
.feature-side-card,
.info-panel,
.guide-card,
.news-card,
.faq-item,
.cta-panel{
  border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:0 10px 24px rgba(20,16,14,.04);
}
.feature-main{
  overflow:hidden;
}
.feature-main img{
  width:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
}
.feature-copy{
  padding:22px;
}
.feature-copy .tag-row{
  margin-top:0;
  margin-bottom:14px;
}
.feature-copy h3{
  margin:0 0 10px;
  font-size:1.55rem;
  line-height:1.28;
}
.feature-copy p{
  margin:0;
  color:var(--muted);
}
.feature-list{
  margin:18px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:12px;
}
.feature-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:var(--text);
}
.feature-list li::before{
  content:"";
  width:10px;
  height:10px;
  margin-top:8px;
  border-radius:999px;
  background:linear-gradient(145deg, var(--brand-2), var(--brand));
  flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(200,107,45,.10);
}
.feature-side{
  display:grid;
  gap:16px;
}
.feature-side-card{
  overflow:hidden;
  display:grid;
  grid-template-columns:120px minmax(0,1fr);
  gap:14px;
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.feature-side-card:hover{
  transform:translateY(-2px);
  border-color:rgba(200,107,45,.22);
  box-shadow:var(--shadow);
}
.feature-side-card img{
  width:100%;
  height:100%;
  min-height:150px;
  object-fit:cover;
}
.feature-side-card .card-copy{
  padding:18px 18px 18px 0;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.feature-side-card h3{
  margin:0 0 8px;
  font-size:1.08rem;
  line-height:1.35;
}
.feature-side-card p{
  margin:0 0 14px;
  color:var(--muted);
  font-size:.95rem;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand-3);
  font-weight:700;
}
.info-panel{
  padding:24px;
}
.info-panel h3{
  margin:0 0 12px;
  font-size:1.22rem;
}
.info-panel p{
  margin:0 0 18px;
  color:var(--muted);
}
.chip-grid{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:36px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(200,107,45,.09);
  color:var(--brand-3);
  border:1px solid rgba(200,107,45,.14);
  font-weight:600;
  font-size:.92rem;
}
.news-layout{
  display:grid;
  grid-template-columns:340px minmax(0,1fr);
  gap:24px;
  align-items:start;
}
.news-intro{
  position:sticky;
  top:100px;
  padding:24px;
  border-radius:var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.94)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border:1px solid var(--line);
  box-shadow:0 10px 24px rgba(20,16,14,.04);
}
.news-intro h3{
  margin:0 0 12px;
  font-size:1.3rem;
}
.news-intro p{
  margin:0 0 18px;
  color:var(--muted);
}
.news-mini-list{
  display:grid;
  gap:10px;
}
.news-mini{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:14px 0;
  border-top:1px dashed rgba(23,21,20,.12);
}
.news-mini:first-child{
  border-top:none;
  padding-top:0;
}
.news-mini strong{
  display:block;
  margin-bottom:3px;
}
.news-mini span{
  color:var(--muted);
  font-size:.92rem;
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:16px;
}
.news-card{
  display:flex;
  flex-direction:column;
  padding:20px;
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.news-card:hover,
.news-card:focus-visible{
  transform:translateY(-2px);
  border-color:rgba(200,107,45,.22);
  box-shadow:var(--shadow);
}
.news-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:30px;
  padding:0 10px;
  border-radius:999px;
  font-size:.86rem;
  font-weight:700;
  color:var(--brand-3);
  background:rgba(200,107,45,.10);
}
.news-time{
  color:var(--muted-2);
  font-size:.88rem;
  white-space:nowrap;
}
.news-card h3{
  margin:0 0 10px;
  font-size:1.1rem;
  line-height:1.45;
}
.news-card p{
  margin:0;
  color:var(--muted);
  font-size:.96rem;
}
.news-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:18px;
}
.news-foot .card-link{
  margin-top:0;
}
.empty-state{
  grid-column:1 / -1;
  padding:30px 24px;
  border-radius:var(--radius);
  background:var(--surface);
  border:1px dashed rgba(23,21,20,.16);
  color:var(--muted);
  text-align:center;
}
.guides{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:16px;
}
.guide-card{
  padding:22px;
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.guide-card:hover{
  transform:translateY(-2px);
  border-color:rgba(200,107,45,.18);
  box-shadow:var(--shadow);
}
.guide-step{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:14px;
  margin-bottom:14px;
  background:linear-gradient(145deg, rgba(200,107,45,.14), rgba(228,162,63,.12));
  color:var(--brand-3);
  font-weight:800;
}
.guide-card h3{
  margin:0 0 10px;
  font-size:1.08rem;
}
.guide-card p{
  margin:0;
  color:var(--muted);
}
.faq{
  display:grid;
  gap:12px;
}
.faq-item{
  padding:0;
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-weight:700;
  outline:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  width:30px;
  height:30px;
  display:grid;
  place-items:center;
  border-radius:999px;
  background:rgba(200,107,45,.10);
  color:var(--brand-3);
  font-size:1.1rem;
  flex:0 0 auto;
  transition:transform var(--transition), background var(--transition);
}
.faq-item[open] summary::after{
  content:"–";
  background:rgba(200,107,45,.16);
}
.faq-content{
  padding:0 22px 20px;
  color:var(--muted);
}
.cta{
  padding:72px 0;
}
.cta-panel{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(135deg, rgba(17,15,14,.96), rgba(17,15,14,.84)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-color:rgba(255,255,255,.08);
}
.cta-panel::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(640px 240px at 86% 20%, rgba(228,162,63,.18), transparent 50%);
}
.cta-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:20px;
  align-items:center;
  padding:38px 40px;
  color:#fff;
}
.cta-inner h2{
  margin:0 0 10px;
  font-size:clamp(1.5rem, 2.9vw, 2.4rem);
  line-height:1.2;
}
.cta-inner p{
  margin:0;
  color:rgba(255,255,255,.78);
  max-width:60ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}
.cta-actions .btn-secondary{
  background:rgba(255,255,255,.08);
}
.site-footer{
  margin-top:12px;
  padding:44px 0 34px;
  background:var(--surface-2);
  color:rgba(255,255,255,.86);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr .8fr;
  gap:24px;
}
.footer-brand{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.footer-brand .brand-mark{
  width:46px;
  height:46px;
}
.footer-brand .brand-name{
  color:#fff;
}
.footer-brand .brand-sub{
  color:rgba(255,255,255,.62);
}
.footer-title{
  margin:0 0 14px;
  color:#fff;
  font-size:1rem;
}
.footer-links{
  display:grid;
  gap:10px;
}
.footer-links a{
  color:rgba(255,255,255,.74);
  transition:color var(--transition), transform var(--transition);
}
.footer-links a:hover,
.footer-links a:focus-visible{
  color:#fff;
  transform:translateX(2px);
}
.footer-note{
  color:rgba(255,255,255,.62);
  font-size:.96rem;
}
.footer-bottom{
  margin-top:28px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  color:rgba(255,255,255,.56);
  font-size:.92rem;
}
.focusable:focus-visible,
a:focus-visible,
button:focus-visible,
summary:focus-visible{
  outline:3px solid rgba(228,162,63,.36);
  outline-offset:3px;
}
@media (max-width: 1120px){
  .hero-inner{grid-template-columns:1fr; padding:42px}
  .hero-visual{min-height:320px}
  .news-layout{grid-template-columns:1fr}
  .news-intro{position:static}
  .feature-grid{grid-template-columns:1fr}
}
@media (max-width: 860px){
  .header-inner{
    flex-wrap:wrap;
  }
  .nav{
    order:3;
    width:100%;
    justify-content:flex-start;
    overflow:auto;
    padding-bottom:4px;
  }
  .hero-meta,
  .stat-strip,
  .guides,
  .footer-grid,
  .news-grid{
    grid-template-columns:1fr 1fr;
  }
  .cta-inner{
    grid-template-columns:1fr;
  }
  .cta-actions{
    justify-content:flex-start;
  }
  .feature-side-card{
    grid-template-columns:120px minmax(0,1fr);
  }
}
@media (max-width: 640px){
  .container{width:min(var(--container), calc(100% - 22px))}
  .hero-panel{border-radius:24px}
  .hero-inner{padding:26px}
  .hero h1{font-size:clamp(1.9rem, 8vw, 3rem)}
  .hero p{font-size:1rem}
  .hero-actions{gap:10px}
  .btn,
  .header-cta{
    width:100%;
    justify-content:center;
  }
  .header-cta{order:2}
  .hero-meta,
  .stat-strip,
  .guides,
  .footer-grid,
  .news-grid{
    grid-template-columns:1fr;
  }
  .feature-side-card{
    grid-template-columns:1fr;
  }
  .feature-side-card .card-copy{
    padding:0 18px 18px;
  }
  .section{padding-top:56px}
  .cta{padding:56px 0}
  .cta-inner{padding:28px}
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
}

/* roulang page: article */
:root{
    --bg:#f6f1e8;
    --bg-soft:#fbf7f0;
    --surface:#fffaf2;
    --surface-2:#1a1715;
    --surface-3:#241f1c;
    --text:#171514;
    --muted:#6e6760;
    --muted-2:#8b8278;
    --line:rgba(23,21,20,.10);
    --line-strong:rgba(23,21,20,.16);
    --brand:#c86b2d;
    --brand-2:#e4a23f;
    --brand-3:#8b4320;
    --brand-soft:rgba(200,107,45,.12);
    --ok:#4f8a5b;
    --shadow:0 18px 48px rgba(20,16,14,.08);
    --shadow-2:0 10px 28px rgba(20,16,14,.12);
    --radius:22px;
    --radius-sm:16px;
    --radius-xs:12px;
    --container:1240px;
    --gap:24px;
    --gap-sm:16px;
    --gap-xs:12px;
    --transition:180ms ease;
  }
  html{scroll-behavior:smooth}
  *{box-sizing:border-box}
  body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    color:var(--text);
    background:
      radial-gradient(900px 420px at 10% -10%, rgba(228,162,63,.18), transparent 55%),
      radial-gradient(700px 320px at 90% 8%, rgba(200,107,45,.10), transparent 46%),
      linear-gradient(180deg, #fcfaf6 0%, var(--bg) 100%);
    line-height:1.75;
    text-rendering:optimizeLegibility;
    -webkit-font-smoothing:antialiased;
  }
  img{
    display:block;
    max-width:100%;
    height:auto;
  }
  a{
    color:inherit;
    text-decoration:none;
  }
  a:hover{color:inherit}
  button,
  input,
  textarea{
    font:inherit;
  }
  button{
    cursor:pointer;
  }
  :focus-visible{
    outline:3px solid rgba(200,107,45,.34);
    outline-offset:3px;
  }
  .container{
    width:min(var(--container), calc(100% - 32px));
    margin:0 auto;
  }
  .focusable:focus-visible{
    border-radius:999px;
  }

  .site-header{
    position:sticky;
    top:0;
    z-index:100;
    backdrop-filter:saturate(140%) blur(16px);
    background:rgba(250,247,241,.82);
    border-bottom:1px solid rgba(23,21,20,.08);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:16px 0;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:14px;
    min-width:0;
  }
  .brand-mark{
    width:42px;
    height:42px;
    border-radius:14px;
    background:
      linear-gradient(145deg, rgba(255,255,255,.24), rgba(255,255,255,0)),
      linear-gradient(145deg, var(--surface-2), #39312d);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.12), 0 12px 30px rgba(25,21,19,.18);
    position:relative;
    flex:0 0 auto;
  }
  .brand-mark::before{
    content:"";
    position:absolute;
    inset:10px;
    border-radius:10px;
    background:linear-gradient(145deg, var(--brand-2), var(--brand));
    box-shadow:0 0 0 1px rgba(255,255,255,.1);
  }
  .brand-text{
    display:flex;
    flex-direction:column;
    gap:2px;
    min-width:0;
  }
  .brand-name{
    font-size:1.04rem;
    font-weight:800;
    letter-spacing:.02em;
    line-height:1.2;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .brand-sub{
    color:var(--muted);
    font-size:.92rem;
    line-height:1.3;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .nav{
    display:flex;
    align-items:center;
    gap:8px;
    flex-wrap:wrap;
    justify-content:center;
  }
  .nav a{
    padding:10px 14px;
    border-radius:999px;
    color:var(--muted);
    transition:background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    border:1px solid transparent;
  }
  .nav a:hover,
  .nav a:focus-visible{
    background:rgba(200,107,45,.10);
    color:var(--text);
    transform:translateY(-1px);
  }
  .nav a.active{
    background:rgba(25,23,21,.92);
    color:#fff;
    box-shadow:0 10px 24px rgba(25,23,21,.18);
  }
  .header-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    padding:12px 18px;
    border-radius:999px;
    background:linear-gradient(145deg, var(--brand-2), var(--brand));
    color:#fff;
    font-weight:700;
    box-shadow:0 14px 30px rgba(200,107,45,.24);
    transition:transform var(--transition), filter var(--transition), box-shadow var(--transition);
    flex:0 0 auto;
  }
  .header-cta:hover,
  .header-cta:focus-visible{
    transform:translateY(-1px);
    filter:saturate(1.02);
    box-shadow:0 18px 36px rgba(200,107,45,.26);
    color:#fff;
  }
  .header-cta:active{
    transform:translateY(0);
  }

  .page-banner{
    padding:28px 0 18px;
  }
  .banner-shell{
    position:relative;
    overflow:hidden;
    border-radius:32px;
    box-shadow:var(--shadow);
    background:
      linear-gradient(135deg, rgba(17,15,14,.88) 0%, rgba(17,15,14,.84) 42%, rgba(17,15,14,.56) 100%),
      url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  }
  .banner-shell::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(700px 260px at 82% 18%, rgba(228,162,63,.18), transparent 52%),
      linear-gradient(180deg, rgba(25,21,19,.10), rgba(25,21,19,.30));
    pointer-events:none;
  }
  .banner-grid{
    position:relative;
    z-index:1;
    display:grid;
    grid-template-columns:minmax(0,1.16fr) minmax(300px,.84fr);
    gap:30px;
    align-items:center;
    padding:56px;
  }
  .banner-copy{
    color:#fff;
  }
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
    color:rgba(255,255,255,.72);
    font-size:.95rem;
    margin-bottom:14px;
  }
  .breadcrumb a{
    color:rgba(255,255,255,.88);
    transition:color var(--transition);
  }
  .breadcrumb a:hover,
  .breadcrumb a:focus-visible{
    color:#fff;
  }
  .section-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:8px 12px;
    border-radius:999px;
    background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.14);
    color:rgba(255,255,255,.85);
    font-size:.88rem;
    letter-spacing:.02em;
    backdrop-filter:blur(10px);
  }
  .banner-copy h1{
    margin:16px 0 16px;
    font-size:clamp(2.1rem, 4.4vw, 4.4rem);
    line-height:1.08;
    letter-spacing:-.03em;
  }
  .banner-lead{
    margin:0;
    max-width:64ch;
    color:rgba(255,255,255,.82);
    font-size:1.05rem;
  }
  .banner-meta{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:24px;
  }
  .meta-chip{
    display:inline-flex;
    align-items:center;
    min-height:40px;
    padding:0 14px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.14);
    background:rgba(255,255,255,.08);
    color:rgba(255,255,255,.86);
    backdrop-filter:blur(10px);
    font-size:.94rem;
  }
  .banner-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:28px;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    min-height:48px;
    padding:0 20px;
    border-radius:14px;
    border:1px solid transparent;
    font-weight:700;
    transition:transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition), filter var(--transition);
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(145deg, var(--brand-2), var(--brand));
    color:#fff;
    box-shadow:0 12px 26px rgba(200,107,45,.25);
  }
  .btn-primary:hover,
  .btn-primary:focus-visible{
    transform:translateY(-1px);
    box-shadow:0 16px 30px rgba(200,107,45,.30);
    color:#fff;
  }
  .btn-primary:active{
    transform:translateY(0);
  }
  .btn-secondary{
    background:rgba(255,255,255,.07);
    color:#fff;
    border-color:rgba(255,255,255,.18);
  }
  .btn-secondary:hover,
  .btn-secondary:focus-visible{
    transform:translateY(-1px);
    background:rgba(255,255,255,.12);
    border-color:rgba(255,255,255,.28);
    color:#fff;
  }
  .btn-secondary:active{
    transform:translateY(0);
  }

  .banner-visual{
    position:relative;
    z-index:1;
  }
  .visual-stack{
    display:grid;
    gap:16px;
  }
  .visual-card{
    border-radius:24px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.10);
    background:rgba(255,255,255,.06);
    box-shadow:0 18px 38px rgba(10,8,7,.18);
  }
  .visual-card.cover img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
  }
  .visual-card.mini{
    padding:20px;
    color:#fff;
    background:linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  }
  .visual-card.mini .mini-stat{
    display:inline-flex;
    padding:7px 10px;
    border-radius:999px;
    background:rgba(200,107,45,.16);
    color:#ffd7bd;
    font-size:.84rem;
    margin-bottom:12px;
  }
  .visual-card.mini strong{
    display:block;
    font-size:1.08rem;
    line-height:1.45;
    margin-bottom:10px;
  }
  .visual-card.mini p{
    margin:0;
    color:rgba(255,255,255,.76);
    font-size:.95rem;
    line-height:1.7;
  }

  .article-section{
    padding:18px 0 8px;
  }
  .article-grid{
    display:grid;
    grid-template-columns:minmax(0,1.68fr) minmax(300px,.92fr);
    gap:24px;
    align-items:start;
  }
  .article-card,
  .side-card,
  .cta-panel,
  .faq-item,
  .content-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
  }
  .article-card{
    padding:28px;
  }
  .article-head{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:16px;
    margin-bottom:20px;
    padding-bottom:18px;
    border-bottom:1px solid var(--line);
  }
  .article-head-actions{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    justify-content:flex-end;
    padding-top:4px;
  }
  .text-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--brand-3);
    font-weight:700;
    transition:color var(--transition), transform var(--transition), opacity var(--transition);
  }
  .text-link:hover,
  .text-link:focus-visible{
    color:var(--brand);
    transform:translateY(-1px);
  }
  .article-title{
    margin:12px 0 0;
    font-size:clamp(1.8rem, 3vw, 2.5rem);
    line-height:1.22;
    letter-spacing:-.02em;
  }
  .article-sub{
    margin:10px 0 0;
    color:var(--muted);
  }
  .article-meta{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:16px;
  }
  .article-meta .meta-chip{
    background:rgba(200,107,45,.08);
    border:1px solid rgba(200,107,45,.14);
    color:var(--muted);
    backdrop-filter:none;
  }
  .article-banner{
    margin:20px 0 24px;
    border-radius:24px;
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:0 12px 30px rgba(20,16,14,.08);
    background:linear-gradient(180deg, rgba(255,255,255,.45), rgba(255,255,255,.88));
  }
  .article-banner img{
    width:100%;
    aspect-ratio:16/8.8;
    object-fit:cover;
  }
  .article-banner figcaption{
    padding:14px 16px;
    color:var(--muted);
    font-size:.92rem;
    background:linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.98));
  }
  .article-prose{
    color:var(--text);
    font-size:1.02rem;
    line-height:1.9;
  }
  .article-prose > * + *{
    margin-top:1.1rem;
  }
  .article-prose h2,
  .article-prose h3,
  .article-prose h4{
    color:var(--text);
    line-height:1.35;
    letter-spacing:-.01em;
    margin-top:2rem;
    margin-bottom:.8rem;
  }
  .article-prose h2{font-size:1.5rem}
  .article-prose h3{font-size:1.18rem}
  .article-prose p{
    margin:0;
    color:#25211f;
  }
  .article-prose a{
    color:var(--brand-3);
    text-decoration:none;
    border-bottom:1px solid rgba(200,107,45,.35);
    transition:border-color var(--transition), color var(--transition), background var(--transition);
  }
  .article-prose a:hover,
  .article-prose a:focus-visible{
    color:var(--brand);
    border-color:rgba(200,107,45,.62);
    background:rgba(200,107,45,.06);
  }
  .article-prose ul,
  .article-prose ol{
    padding-left:1.3rem;
    margin:0;
  }
  .article-prose li + li{
    margin-top:.55rem;
  }
  .article-prose blockquote{
    margin:1.35rem 0;
    padding:1rem 1.1rem;
    border-left:4px solid var(--brand);
    background:rgba(200,107,45,.07);
    border-radius:0 16px 16px 0;
    color:#3a322b;
  }
  .article-prose hr{
    border:0;
    border-top:1px solid var(--line);
    margin:1.5rem 0;
  }
  .article-prose figure{
    margin:1.4rem 0;
  }
  .article-prose img{
    border-radius:20px;
    box-shadow:0 12px 30px rgba(20,16,14,.08);
  }
  .article-prose figcaption{
    margin-top:.55rem;
    color:var(--muted);
    font-size:.92rem;
  }
  .article-prose table{
    width:100%;
    border-collapse:collapse;
    overflow:hidden;
    border-radius:16px;
    display:block;
    max-width:100%;
    overflow-x:auto;
    box-shadow:0 10px 24px rgba(20,16,14,.06);
  }
  .article-prose th,
  .article-prose td{
    border:1px solid var(--line);
    padding:12px 14px;
    text-align:left;
    vertical-align:top;
    background:#fff;
  }
  .article-prose th{
    background:rgba(200,107,45,.08);
    color:var(--text);
    font-weight:700;
  }
  .article-prose code{
    padding:.14rem .38rem;
    border-radius:8px;
    background:rgba(23,21,20,.06);
    color:#3d342d;
  }
  .article-prose pre{
    margin:1.2rem 0;
    padding:16px;
    border-radius:18px;
    overflow:auto;
    background:var(--surface-2);
    color:#f6efe6;
    box-shadow:0 10px 26px rgba(20,16,14,.08);
  }
  .article-prose pre code{
    padding:0;
    background:transparent;
    color:inherit;
  }

  .note-box{
    margin-top:22px;
    padding:18px 18px 16px;
    border-radius:20px;
    background:linear-gradient(145deg, rgba(200,107,45,.10), rgba(228,162,63,.08));
    border:1px solid rgba(200,107,45,.14);
  }
  .note-box strong{
    display:block;
    margin-bottom:6px;
    font-size:1.02rem;
  }
  .note-box p{
    margin:0;
    color:var(--muted);
  }

  .empty-state{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    min-height:280px;
    padding:24px;
    border-radius:24px;
    background:linear-gradient(145deg, rgba(255,250,242,.9), rgba(246,241,232,.9));
    border:1px dashed rgba(23,21,20,.16);
  }
  .empty-state h3{
    margin:0 0 10px;
    font-size:1.35rem;
  }
  .empty-state p{
    margin:0 0 18px;
    color:var(--muted);
    max-width:50ch;
  }

  .side-stack{
    display:grid;
    gap:18px;
    position:sticky;
    top:98px;
  }
  .side-card{
    padding:22px;
  }
  .info-list{
    list-style:none;
    padding:0;
    margin:14px 0 0;
    display:grid;
    gap:12px;
  }
  .info-list li{
    display:flex;
    flex-direction:column;
    gap:4px;
    padding:12px 14px;
    border-radius:16px;
    background:rgba(200,107,45,.06);
    border:1px solid rgba(200,107,45,.10);
  }
  .info-list span{
    color:var(--muted);
    font-size:.88rem;
  }
  .info-list strong{
    color:var(--text);
    font-size:.98rem;
    line-height:1.5;
    word-break:break-word;
  }
  .side-spot{
    display:flex;
    align-items:stretch;
    gap:12px;
    margin-top:14px;
    padding:10px;
    border-radius:18px;
    border:1px solid var(--line);
    background:#fff;
    transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  }
  .side-spot:hover,
  .side-spot:focus-visible{
    transform:translateY(-2px);
    box-shadow:var(--shadow-2);
    border-color:rgba(200,107,45,.18);
  }
  .side-spot img{
    width:96px;
    flex:0 0 auto;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:14px;
  }
  .side-spot strong{
    display:block;
    margin:2px 0 6px;
    font-size:1rem;
  }
  .side-spot p{
    margin:0;
    color:var(--muted);
    font-size:.92rem;
    line-height:1.65;
  }
  .tag-cloud{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:14px;
  }
  .tag{
    display:inline-flex;
    align-items:center;
    min-height:36px;
    padding:0 12px;
    border-radius:999px;
    background:rgba(23,21,20,.05);
    border:1px solid rgba(23,21,20,.08);
    color:var(--muted);
    font-size:.92rem;
  }

  .related-section,
  .faq-section,
  .cta-section{
    padding:22px 0 0;
  }
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:16px;
    margin-bottom:16px;
  }
  .section-title{
    margin:10px 0 0;
    font-size:clamp(1.45rem, 2.2vw, 2.1rem);
    line-height:1.24;
    letter-spacing:-.02em;
  }
  .related-grid{
    display:grid;
    grid-template-columns:repeat(3, minmax(0,1fr));
    gap:18px;
  }
  .content-card{
    overflow:hidden;
    transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  }
  .content-card:hover,
  .content-card:focus-visible{
    transform:translateY(-3px);
    box-shadow:var(--shadow-2);
    border-color:rgba(200,107,45,.18);
  }
  .content-card img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
  }
  .content-card-body{
    padding:18px;
  }
  .content-card-body .mini-stat{
    display:inline-flex;
    align-items:center;
    min-height:30px;
    padding:0 10px;
    border-radius:999px;
    background:rgba(200,107,45,.10);
    color:var(--brand-3);
    font-size:.82rem;
    margin-bottom:10px;
  }
  .content-card-body h3{
    margin:0 0 8px;
    font-size:1.08rem;
    line-height:1.45;
  }
  .content-card-body p{
    margin:0;
    color:var(--muted);
    font-size:.95rem;
    line-height:1.7;
  }

  .faq-grid{
    display:grid;
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:18px;
  }
  .faq-item{
    padding:22px;
  }
  .faq-item h3{
    margin:0 0 10px;
    font-size:1.05rem;
    line-height:1.45;
  }
  .faq-item p{
    margin:0;
    color:var(--muted);
    line-height:1.75;
  }

  .cta-panel{
    position:relative;
    overflow:hidden;
    padding:30px;
    color:#fff;
    background:
      linear-gradient(135deg, rgba(24,20,18,.94), rgba(24,20,18,.84)),
      url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  }
  .cta-panel::after{
    content:"";
    position:absolute;
    inset:0;
    background:radial-gradient(640px 220px at 90% 15%, rgba(228,162,63,.18), transparent 52%);
    pointer-events:none;
  }
  .cta-panel > *{
    position:relative;
    z-index:1;
  }
  .cta-panel .section-kicker{
    border-color:rgba(255,255,255,.12);
    background:rgba(255,255,255,.08);
  }
  .cta-text{
    margin:12px 0 0;
    color:rgba(255,255,255,.80);
    max-width:58ch;
  }
  .cta-panel .section-title{
    color:#fff;
  }
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:18px;
  }
  .cta-panel .btn-secondary{
    background:rgba(255,255,255,.07);
  }

  .site-footer{
    margin-top:26px;
    padding:34px 0 20px;
    background:var(--surface-2);
    color:rgba(255,255,255,.78);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.2fr .8fr .9fr;
    gap:24px;
    padding-bottom:22px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:14px;
  }
  .site-footer .brand-mark{
    box-shadow:inset 0 1px 0 rgba(255,255,255,.12), 0 12px 30px rgba(0,0,0,.18);
  }
  .site-footer .brand-name{
    color:#fff;
  }
  .site-footer .brand-sub{
    color:rgba(255,255,255,.64);
  }
  .footer-title{
    margin:0 0 14px;
    color:#fff;
    font-size:1rem;
  }
  .footer-note{
    margin:0;
    color:rgba(255,255,255,.68);
    line-height:1.8;
  }
  .footer-links{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
  }
  .footer-links a{
    display:inline-flex;
    align-items:center;
    min-height:38px;
    padding:0 13px;
    border-radius:999px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.08);
    color:rgba(255,255,255,.82);
    transition:transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  }
  .footer-links a:hover,
  .footer-links a:focus-visible{
    transform:translateY(-1px);
    background:rgba(200,107,45,.16);
    border-color:rgba(200,107,45,.18);
    color:#fff;
  }
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-top:18px;
    color:rgba(255,255,255,.56);
    font-size:.95rem;
  }

  @media (max-width: 1180px){
    .banner-grid,
    .article-grid{
      grid-template-columns:1fr;
    }
    .side-stack{
      position:static;
    }
  }
  @media (max-width: 992px){
    .banner-grid{
      padding:40px;
    }
    .related-grid{
      grid-template-columns:1fr 1fr;
    }
  }
  @media (max-width: 768px){
    .header-inner{
      flex-wrap:wrap;
      padding:14px 0 12px;
    }
    .nav{
      order:3;
      width:100%;
      justify-content:flex-start;
      overflow-x:auto;
      -webkit-overflow-scrolling:touch;
      padding-bottom:2px;
      scrollbar-width:thin;
    }
    .nav::-webkit-scrollbar{
      height:6px;
    }
    .nav::-webkit-scrollbar-thumb{
      background:rgba(23,21,20,.16);
      border-radius:999px;
    }
    .header-cta{
      margin-left:auto;
    }
    .banner-grid{
      padding:28px;
    }
    .banner-visual{
      display:none;
    }
    .article-card,
    .side-card,
    .cta-panel,
    .faq-item{
      padding:20px;
    }
    .article-head{
      flex-direction:column;
      align-items:flex-start;
    }
    .article-head-actions{
      justify-content:flex-start;
    }
    .faq-grid,
    .related-grid,
    .footer-grid{
      grid-template-columns:1fr;
    }
    .footer-bottom{
      flex-direction:column;
      align-items:flex-start;
    }
  }
  @media (max-width: 520px){
    .container{
      width:min(var(--container), calc(100% - 24px));
    }
    .brand-name{
      font-size:.98rem;
    }
    .brand-sub{
      font-size:.84rem;
    }
    .banner-grid{
      padding:22px;
    }
    .banner-copy h1{
      font-size:2.02rem;
    }
    .banner-lead{
      font-size:1rem;
    }
    .banner-actions,
    .cta-actions{
      width:100%;
    }
    .banner-actions .btn,
    .cta-actions .btn,
    .header-cta{
      width:100%;
    }
    .header-cta{
      margin-left:0;
    }
    .btn{
      width:100%;
    }
    .side-spot{
      align-items:flex-start;
    }
    .side-spot img{
      width:84px;
    }
  }

/* 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}