/* roulang page: index */
:root{
  --brand-600:#E8491D;
  --brand-700:#C33A12;
  --brand-050:#FDEDE6;
  --accent-600:#0E9E8F;
  --accent-050:#E6F6F4;
  --spark:#F2B705;
  --ink-900:#14171C;
  --ink-700:#2C323B;
  --ink-500:#5B6472;
  --line:#E4DFD8;
  --paper:#FAF7F2;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-rest:0 1px 2px rgba(20,23,28,.04),0 8px 24px -12px rgba(20,23,28,.12);
  --shadow-hover:0 12px 32px -14px rgba(232,73,29,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent-600);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.wrap{padding:0 24px}}
@media (min-width:1024px){.wrap{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,242,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-bar{display:flex;align-items:center;gap:16px;min-height:76px;padding:10px 0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-700));
  color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(232,73,29,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16.5px;font-weight:800;color:var(--ink-900);letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--ink-500);letter-spacing:.16em}
.search-form{
  flex:1 1 auto;max-width:540px;margin:0 auto;
  display:flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:4px 4px 4px 16px;
  box-shadow:var(--shadow-rest);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form:focus-within{border-color:var(--accent-600);box-shadow:0 0 0 3px rgba(14,158,143,.16)}
.search-form .ico{width:18px;height:18px;flex:0 0 auto;color:var(--ink-500)}
.search-form input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  padding:9px 6px;outline:none;color:var(--ink-900);font-size:15px;
}
.search-form input::placeholder{color:#9AA1AB}
.search-form button{
  border:0;border-radius:999px;background:var(--brand-600);color:#fff;
  font-size:14px;font-weight:600;padding:9px 20px;min-height:40px;
  transition:background .18s ease,transform .18s ease;
}
.search-form button:hover{background:var(--brand-700);transform:translateY(-1px)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 13px;border-radius:10px;min-height:44px;
  font-size:15px;font-weight:500;color:var(--ink-700);
  transition:background .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--brand-050);color:var(--brand-600);text-decoration:none}
.nav-link.active{color:var(--ink-900);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
}
.menu-toggle:hover{border-color:var(--accent-600);color:var(--accent-600)}
.mobile-drawer{display:none;padding:8px 0 16px;border-top:1px solid var(--line)}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:block;padding:13px 12px;border-radius:10px;
  color:var(--ink-700);font-size:15.5px;
}
.mobile-drawer a:hover{background:var(--brand-050);color:var(--brand-600);text-decoration:none}
.mobile-drawer a.active{color:var(--brand-600);font-weight:700;background:var(--brand-050)}
@media (max-width:1023px){
  .header-bar{flex-wrap:wrap;gap:12px;padding:12px 0}
  .main-nav{display:none}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .search-form{order:3;width:100%;max-width:none;margin:0}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  padding:13px 26px;min-height:46px;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 8px 20px -12px rgba(232,73,29,.8)}
.btn-primary:hover{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-hover)}
.btn-secondary{background:#fff;color:var(--ink-900);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--accent-600);color:var(--accent-600)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost-light:hover{background:#fff;color:var(--ink-900);border-color:#fff}
.btn-onbrand{background:#fff;color:var(--brand-700)}
.btn-onbrand:hover{background:var(--ink-900);color:#fff}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-900);color:#fff}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.6}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,23,28,.94) 0%,rgba(20,23,28,.78) 46%,rgba(20,23,28,.44) 100%);
}
.hero-inner{position:relative;padding:64px 0 56px;max-width:790px}
@media (min-width:1024px){.hero-inner{padding:104px 0 92px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:6px 14px;font-size:12.5px;letter-spacing:.06em;color:#fff;
}
.eyebrow .dot{width:7px;height:7px;border-radius:999px;background:var(--spark)}
.hero-title{
  margin:22px 0 0;color:#fff;font-weight:800;
  font-size:clamp(30px,4.2vw,46px);line-height:1.25;letter-spacing:.01em;
}
.hero-sub{margin:18px 0 0;color:rgba(255,255,255,.86);font-size:17px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  list-style:none;margin:44px 0 0;padding:26px 0 0;
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
  border-top:1px solid rgba(255,255,255,.18);
}
@media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,1fr)}}
.hero-stats .num{font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}
.hero-stats .lbl{font-size:13px;color:rgba(255,255,255,.7);margin-top:2px}

/* ---------- Sections ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:92px 0}}
.section-white{background:#fff}
.section-stripe{
  background-color:var(--paper);
  background-image:repeating-linear-gradient(45deg,rgba(20,23,28,.045) 0 2px,transparent 2px 12px);
}
.section-dark{background:var(--ink-900);color:rgba(255,255,255,.78)}
.section-dark h2,.section-dark h3{color:#fff}
.sec-head{max-width:760px;margin-bottom:30px}
.sec-title{
  position:relative;padding-left:16px;font-weight:700;
  font-size:clamp(22px,2.5vw,32px);line-height:1.32;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.26em;width:4px;height:1em;
  background:var(--brand-600);border-radius:2px;
}
.sec-title::after{
  content:"";position:absolute;left:0;bottom:-9px;width:16px;height:4px;
  background:var(--spark);border-radius:2px;
}
.sec-desc{margin-top:18px;color:var(--ink-500);font-size:16px;max-width:720px}
.section-dark .sec-desc{color:rgba(255,255,255,.7)}

/* ---------- 痛点编号列表 ---------- */
.num-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.num-item{
  display:flex;gap:20px;padding:26px 18px;
  border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.num-item:hover{background:rgba(232,73,29,.04)}
.num-index{
  flex:0 0 46px;font-size:14px;font-weight:800;color:var(--brand-600);
  letter-spacing:.08em;font-variant-numeric:tabular-nums;padding-top:4px;
}
.num-body h3{font-size:18px;font-weight:600;margin-bottom:6px}
.num-body p{color:var(--ink-500);font-size:15.5px;margin:0}

/* ---------- Zigzag ---------- */
.zig-row{
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
  padding:34px 0;border-bottom:1px solid var(--line);
}
.zig-row:last-child{border-bottom:0}
@media (min-width:1024px){
  .zig-row{grid-template-columns:1fr 1fr;gap:56px;padding:48px 0}
  .zig-row.reverse .zig-text{order:2}
}
.zig-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-card);border:1px solid var(--line);
  box-shadow:var(--shadow-rest);
}
.zig-text h3{font-size:20px;font-weight:600;margin-bottom:10px}
.zig-text p{color:var(--ink-500);font-size:15.5px;max-width:560px}
.check-list{list-style:none;margin:18px 0 0;padding:0}
.check-list li{position:relative;padding-left:26px;margin-bottom:10px;font-size:15.5px;color:var(--ink-700)}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--accent-600);font-weight:700}

/* ---------- 数据带 ---------- */
.stats-band{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media (min-width:1024px){.stats-band{grid-template-columns:repeat(4,1fr);gap:24px}}
.stat-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-left:3px solid var(--spark);
  border-radius:var(--radius-card);
  padding:24px 22px;
}
.stat-card .num{font-size:32px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-card .lbl{margin-top:8px;font-size:14px;color:rgba(255,255,255,.72)}

/* ---------- 证言 ---------- */
.quote-track{
  display:flex;gap:18px;overflow-x:auto;padding-bottom:14px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.quote-track::-webkit-scrollbar{height:6px}
.quote-track::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.quote-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-rest);
  display:flex;flex-direction:column;
}
@media (min-width:768px){
  .quote-track{display:grid;grid-template-columns:repeat(3,1fr);overflow:visible;padding-bottom:0}
  .quote-card{flex:none}
}
.quote-mark{font-family:Georgia,"Times New Roman",serif;font-size:42px;line-height:1;color:var(--brand-600);font-weight:800}
.quote-text{margin:8px 0 18px;font-size:15.5px;color:var(--ink-700)}
.quote-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.avatar{
  width:38px;height:38px;border-radius:999px;flex:0 0 auto;
  background:var(--accent-050);color:#0A7A6E;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.quote-meta strong{display:block;font-size:14px;color:var(--ink-900)}
.quote-meta span{font-size:13px;color:var(--ink-500)}
.dots{display:flex;gap:7px;justify-content:center;margin-top:14px}
.dots i{width:7px;height:7px;border-radius:999px;background:var(--line);display:block;transition:background .2s,width .2s}
.dots i.on{background:var(--brand-600);width:18px}
@media (min-width:768px){.dots{display:none}}

/* ---------- 内容卡片 ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tab{
  border:1px solid var(--line);background:#fff;color:var(--ink-500);
  border-radius:999px;padding:8px 18px;font-size:14px;min-height:40px;
  transition:all .18s ease;
}
.tab:hover{border-color:var(--accent-600);color:var(--accent-600)}
.tab.on{background:var(--accent-600);border-color:var(--accent-600);color:#fff;font-weight:600}
.post-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);gap:26px}}
.post-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-rest);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.post-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#F3C4B3}
.post-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--brand-050)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5}
.post-body h3 a{color:var(--ink-900)}
.post-card:hover .post-body h3 a{color:var(--brand-600)}
.post-excerpt{
  margin:0;color:var(--ink-500);font-size:14.5px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-500);
}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  background:var(--brand-050);color:var(--brand-700);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.badge-accent{background:var(--accent-050);color:#0A7A6E}
.empty-state{
  text-align:center;padding:64px 24px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:999px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--ink-500);
}
.empty-state p{color:var(--ink-500);font-size:14.5px;margin-bottom:18px}

/* ---------- 分类入口 ---------- */
.cat-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.cat-grid{grid-template-columns:repeat(2,1fr);gap:26px}}
.cat-card{
  display:block;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-rest);
  transition:box-shadow .2s ease,transform .2s ease;
}
.cat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);text-decoration:none}
.cat-card figure{margin:0;aspect-ratio:16/7;overflow:hidden;background:var(--brand-050)}
.cat-card figure img{width:100%;height:100%;object-fit:cover}
.cat-card-body{padding:24px}
.cat-card-body h3{font-size:19px;font-weight:700;margin-bottom:8px}
.cat-card-body p{color:var(--ink-500);font-size:15px;margin-bottom:14px}
.cat-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand-600)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#F3C4B3;box-shadow:var(--shadow-rest)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;line-height:1;color:var(--brand-600);
  font-weight:600;transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 22px 20px;color:var(--ink-500);font-size:15px;line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand-600),var(--brand-700));
  border-radius:18px;padding:44px 32px;color:#fff;
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  box-shadow:0 24px 48px -28px rgba(232,73,29,.85);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:10px}
.cta-band p{margin:0;color:rgba(255,255,255,.9);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:800}
.footer-brand span{display:block;font-size:11px;color:rgba(255,255,255,.55);letter-spacing:.16em}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14.5px}
.footer-list a{color:rgba(255,255,255,.72)}
.footer-list a:hover{color:var(--accent-600);text-decoration:none}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* roulang page: article */
:root{
  --brand-600:#E8491D;
  --brand-700:#C33A12;
  --brand-050:#FDEDE6;
  --accent-600:#0E9E8F;
  --accent-050:#E6F6F4;
  --spark:#F2B705;
  --ink-900:#14171C;
  --ink-700:#2C323B;
  --ink-500:#5B6472;
  --line:#E4DFD8;
  --paper:#FAF7F2;
  --card:#FFFFFF;
  --r-lg:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,23,28,.04), 0 8px 24px -12px rgba(20,23,28,.12);
  --sh-2:0 12px 32px -14px rgba(232,73,29,.28);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-600);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 16px}
@media (min-width:768px){.wrap{padding:0 24px}}
@media (min-width:1024px){.wrap{padding:0 32px}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,247,242,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:74px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand-600),#F0722F);
  color:#fff;font-weight:800;font-size:19px;display:grid;place-items:center;
  box-shadow:0 8px 18px -10px rgba(232,73,29,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;color:var(--ink-900);letter-spacing:.01em;white-space:nowrap}
.brand-text span{font-size:11.5px;color:var(--ink-500);letter-spacing:.18em}
.search-form{
  flex:1 1 auto;max-width:540px;margin:0 auto;
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 6px 6px 16px;box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{border-color:var(--accent-600);box-shadow:0 0 0 3px var(--accent-050)}
.search-form svg{flex:none;color:var(--ink-500)}
.search-form input{flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;font-size:14.5px;color:var(--ink-900);padding:8px 0}
.search-form input::placeholder{color:#9aa1ab}
.search-submit{
  flex:none;border:0;cursor:pointer;background:var(--brand-600);color:#fff;
  border-radius:var(--r-pill);padding:9px 18px;font-size:14px;font-weight:600;
  transition:background-color .2s ease,transform .2s ease;min-height:38px;
}
.search-submit:hover{background:var(--brand-700);transform:translateY(-1px)}
.main-nav{display:flex;align-items:center;gap:4px;flex:none}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;border-radius:10px;
  font-size:15px;color:var(--ink-700);white-space:nowrap;
}
.nav-link:hover{background:var(--brand-050);color:var(--brand-600);text-decoration:none}
.nav-link.active{color:var(--ink-900);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;place-items:center;color:var(--ink-900);flex:none;
}
.nav-toggle .bar{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;margin:3px auto}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-drawer.open{display:block}
.drawer-nav{display:flex;flex-direction:column;padding:10px 16px 18px}
.drawer-link{padding:12px 14px;border-radius:10px;color:var(--ink-700);font-size:15.5px}
.drawer-link:hover{background:var(--brand-050);color:var(--brand-600);text-decoration:none}
.drawer-link.active{background:var(--accent-050);color:#0a7c70;font-weight:600}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:grid}
  .search-form{order:3;flex-basis:100%;max-width:none;margin:0 0 14px}
}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;font-size:13.5px;color:var(--ink-500);
}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#c7c0b7}
.breadcrumb .current{color:var(--ink-500);word-break:break-all}

/* ============ 主体布局 ============ */
.article-layout{display:grid;grid-template-columns:1fr;gap:32px;padding:20px 0 60px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:36px;padding:24px 0 72px}
}
.article-shell{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
@media (min-width:768px){.article-shell{padding:36px 40px 40px}}

.article-header h1{
  margin:0 0 18px;font-size:clamp(28px,3.6vw,38px);line-height:1.3;
  font-weight:800;letter-spacing:.01em;color:var(--ink-900);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
  font-size:13.5px;color:var(--ink-500);
  padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:26px;
}
.meta-row time{font-variant-numeric:tabular-nums}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-050);color:var(--brand-700);
  border-radius:var(--r-pill);padding:4px 12px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.cover-figure{margin:0 0 30px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line)}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 正文排版 ============ */
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-700)}
.article-body > *{margin-top:0;margin-bottom:1.15em}
.article-body > *:last-child{margin-bottom:0}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:var(--ink-900);
  margin:1.6em 0 .8em;padding-left:12px;border-left:3px solid var(--brand-600);
  scroll-margin-top:96px;
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink-900);margin:1.4em 0 .6em;scroll-margin-top:96px}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink-900);margin:1.2em 0 .5em}
.article-body p{margin:0 0 1.15em}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.15em;line-height:1.8}
.article-body li{margin-bottom:.4em}
.article-body li::marker{color:var(--brand-600);font-weight:600}
.article-body strong{color:var(--ink-900);font-weight:700}
.article-body blockquote{
  margin:1.4em 0;padding:14px 18px;background:var(--accent-050);
  border-left:4px solid var(--accent-600);border-radius:0 10px 10px 0;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.4em auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;
  margin:0 0 1.15em;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;line-height:1.7}
.article-body th{background:var(--paper);color:var(--ink-900);font-weight:600;white-space:nowrap}
.article-body pre{
  background:var(--ink-900);color:#E8E6E1;padding:16px;border-radius:12px;
  overflow-x:auto;font-size:13px;line-height:1.7;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;background:var(--brand-050);color:var(--brand-700);
  padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:2em 0}

/* ============ 文章尾部 ============ */
.article-foot{
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.tags-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:5px 13px;font-size:13px;color:var(--ink-700);
}
a.tag:hover{border-color:var(--accent-600);color:var(--accent-600);text-decoration:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-secondary:hover{border-color:var(--accent-600);color:var(--accent-600);text-decoration:none;transform:translateY(-1px)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--accent-600)}
.text-link:hover{color:var(--brand-600)}

/* ============ 空态 ============ */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:72px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state svg{color:var(--ink-500);margin:0 auto 18px}
.empty-state h1{margin:0 0 10px;font-size:26px;color:var(--ink-900);font-weight:800}
.empty-state p{margin:0 auto 26px;max-width:420px;font-size:15px;color:var(--ink-500)}

/* ============ 侧栏 ============ */
.sidebar{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.sidebar{position:sticky;top:98px;align-self:start}}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
}
.side-title{
  display:flex;align-items:center;gap:8px;margin:0 0 14px;
  font-size:15px;font-weight:700;color:var(--ink-900);
}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand-600)}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;font-size:14px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;color:var(--ink-700);
  border-left:2px solid transparent;line-height:1.6;
}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-600);text-decoration:none}
.toc-list a.is-active{background:var(--accent-050);color:#0a7c70;border-left-color:var(--accent-600)}
.toc-empty{color:var(--ink-500);font-size:13.5px;padding:6px 10px;list-style:none}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.side-note{font-size:14px;color:var(--ink-500);line-height:1.75;margin:0 0 14px}
.side-stat{
  display:flex;align-items:baseline;gap:8px;font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:800;color:var(--ink-900);line-height:1.2;
}
.side-stat::before{content:"";width:3px;height:20px;border-radius:2px;background:var(--spark)}
.side-stat small{font-size:13px;font-weight:500;color:var(--ink-500)}

/* ============ 延伸阅读 ============ */
.read-next-section{padding:0 0 64px}
.section-head{margin-bottom:22px}
.section-head h2{
  margin:0 0 8px;font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--ink-900);
  display:flex;align-items:center;gap:10px;
}
.section-head h2::before{content:"";width:4px;height:22px;border-radius:2px;background:var(--brand-600)}
.section-head p{margin:0;font-size:15px;color:var(--ink-500)}
.read-next{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:640px){.read-next{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.read-next{grid-template-columns:repeat(3,minmax(0,1fr))}}
.next-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.next-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#F0C9B8;text-decoration:none}
.next-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.next-card .nc-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto}
.next-card h3{margin:0;font-size:16.5px;font-weight:600;color:var(--ink-900);line-height:1.5}
.next-card:hover h3{color:var(--brand-600)}
.next-card p{margin:0;font-size:14px;color:var(--ink-500);line-height:1.75}
.next-card .nc-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--accent-600)}

/* ============ 回到顶部 ============ */
.back-to-top{
  position:fixed;right:20px;bottom:24px;z-index:60;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--ink-900);
  background:#fff;color:var(--ink-900);display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease,color .2s ease;
  box-shadow:var(--sh-1);
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--ink-900);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:#B9BFC9;margin-top:24px;padding:52px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{display:block;color:#fff;font-size:16px;line-height:1.3}
.footer-brand span span{display:block;font-size:11.5px;letter-spacing:.18em;color:#8B93A1}
.footer-title{margin:0 0 14px;font-size:15px;font-weight:600;color:#fff}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.footer-list a{color:#B9BFC9}
.footer-list a:hover{color:var(--accent-600);text-decoration:none}
.footer-bottom{
  margin-top:38px;padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:#8B93A1;
}

/* roulang page: category1 */
:root{
    --brand:#E8491D;
    --brand-700:#C33A12;
    --brand-050:#FDEDE6;
    --accent:#0E9E8F;
    --accent-050:#E6F6F4;
    --spark:#F2B705;
    --ink-900:#14171C;
    --ink-700:#2C323B;
    --ink-500:#5B6472;
    --line:#E4DFD8;
    --paper:#FAF7F2;
    --card:#FFFFFF;
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-sm:0 1px 2px rgba(20,23,28,.04), 0 8px 24px -12px rgba(20,23,28,.12);
    --shadow-hover:0 12px 32px -14px rgba(232,73,29,.28);
    --wrap:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16.5px;
    line-height:1.85;
    color:var(--ink-700);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--accent);text-decoration:none;transition:color .18s ease, background-color .18s ease;}
  a:hover{color:var(--brand);}
  button{font-family:inherit;}
  .num{font-variant-numeric:tabular-nums;}
  .wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:16px;padding-right:16px;}
  @media(min-width:768px){.wrap{padding-left:24px;padding-right:24px;}}
  @media(min-width:1024px){.wrap{padding-left:32px;padding-right:32px;}}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(250,247,242,.95);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex;align-items:center;gap:18px;
    padding-top:12px;padding-bottom:12px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:38px;height:38px;border-radius:11px;
    background:linear-gradient(135deg,var(--brand),#F2703F);
    color:#fff;display:grid;place-items:center;
    font-weight:800;font-size:19px;line-height:1;
    box-shadow:0 6px 16px -8px rgba(232,73,29,.75);
  }
  .brand-text strong{display:block;font-size:17px;font-weight:800;color:var(--ink-900);line-height:1.2;letter-spacing:.01em;}
  .brand-text small{display:block;font-size:11.5px;color:var(--ink-500);letter-spacing:.16em;line-height:1.6;}

  .search{
    flex:1 1 auto;max-width:540px;
    display:flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    padding:5px 5px 5px 16px;
    transition:border-color .18s ease, box-shadow .18s ease;
  }
  .search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(14,158,143,.16);}
  .search i{color:var(--ink-500);font-size:14px;}
  .search input{
    flex:1 1 auto;min-width:0;height:36px;
    border:0;outline:none;background:transparent;
    font-size:14.5px;color:var(--ink-900);
  }
  .search input::placeholder{color:#9AA1AC;}
  .search button{
    border:0;cursor:pointer;
    background:var(--brand);color:#fff;
    font-size:14px;font-weight:700;
    padding:9px 18px;border-radius:999px;
    transition:background-color .18s ease, transform .18s ease;
  }
  .search button:hover{background:var(--brand-700);}
  .search button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  .main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
  .nav-link{
    position:relative;
    padding:9px 12px;border-radius:8px;
    font-size:15px;font-weight:600;color:var(--ink-700);
    white-space:nowrap;
  }
  .nav-link:hover{background:var(--brand-050);color:var(--brand-700);}
  .nav-link.active{color:var(--brand);}
  .nav-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;
    height:2px;border-radius:2px;background:var(--brand);
  }
  .menu-toggle{
    display:none;
    margin-left:auto;
    width:44px;height:44px;border-radius:10px;
    border:1px solid var(--line);background:#fff;color:var(--ink-900);
    font-size:18px;cursor:pointer;
    transition:border-color .18s ease,color .18s ease;
  }
  .menu-toggle:hover{border-color:var(--accent);color:var(--accent);}
  .menu-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
  .mobile-drawer{
    border-top:1px solid var(--line);
    background:#fff;
    padding:10px 0 16px;
  }
  .mobile-drawer a{
    display:flex;align-items:center;justify-content:space-between;
    padding:13px 4px;font-size:16px;font-weight:600;color:var(--ink-700);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a:last-child{border-bottom:0;}
  .mobile-drawer a.active{color:var(--brand);}
  .mobile-drawer a i{color:var(--ink-500);font-size:13px;}

  @media(max-width:1023px){
    .header-inner{flex-wrap:wrap;gap:12px;}
    .main-nav{display:none;}
    .menu-toggle{display:block;}
    .search{order:3;flex-basis:100%;max-width:none;}
  }

  /* ---------- Common ---------- */
  .section{padding-top:48px;padding-bottom:48px;}
  @media(min-width:768px){.section{padding-top:64px;padding-bottom:64px;}}
  @media(min-width:1024px){.section{padding-top:80px;padding-bottom:80px;}}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;font-weight:700;letter-spacing:.06em;
    color:var(--brand-700);background:var(--brand-050);
    border-radius:999px;padding:5px 12px;
  }
  .eyebrow.accent{color:#0A7A6E;background:var(--accent-050);}

  .h2{
    position:relative;
    font-size:26px;font-weight:800;line-height:1.35;
    color:var(--ink-900);margin:16px 0 12px;
    padding-left:16px;
  }
  .h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
    border-radius:3px;background:var(--brand);
  }
  .h2::after{
    content:"";position:absolute;left:-2px;top:6px;width:8px;height:8px;border-radius:2px;background:var(--spark);
  }
  @media(min-width:1024px){.h2{font-size:30px;}}
  .lead{font-size:16.5px;color:var(--ink-500);max-width:760px;}
  .body-col{max-width:760px;}
  .body-col p{margin:0 0 1em;}
  .body-col p:last-child{margin-bottom:0;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15.5px;font-weight:700;
    cursor:pointer;border:1px solid transparent;
    transition:transform .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(232,73,29,.85);}
  .btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
  .btn-secondary{background:#fff;border-color:var(--line);color:var(--ink-900);}
  .btn-secondary:hover{border-color:var(--accent);color:var(--accent);background:#fff;}
  .btn-ghost{background:transparent;color:var(--ink-700);}
  .btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);}
  .btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
  .text-link{font-weight:700;font-size:15px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}
  .text-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}

  .tag{
    display:inline-flex;align-items:center;
    font-size:12.5px;font-weight:700;letter-spacing:.04em;
    border-radius:999px;padding:4px 11px;
    background:var(--brand-050);color:var(--brand-700);
  }
  .tag.accent{background:var(--accent-050);color:#0A7A6E;}

  .card{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:22px;
    box-shadow:var(--shadow-sm);
    transition:box-shadow .2s ease, transform .2s ease, border-color .2s ease;
  }
  .card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
  .card h3{font-size:18.5px;font-weight:700;color:var(--ink-900);margin:0 0 8px;line-height:1.45;}
  .card:hover h3{color:var(--brand);}
  .card p{font-size:15px;color:var(--ink-500);margin:0;}

  /* ---------- Breadcrumb ---------- */
  .crumb{padding-top:20px;font-size:14px;color:var(--ink-500);}
  .crumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0;align-items:center;}
  .crumb li::after{content:"/";margin-left:8px;color:#C6C0B8;}
  .crumb li:last-child::after{content:"";margin:0;}
  .crumb .current{color:var(--ink-500);font-weight:600;}

  /* ---------- Category hero ---------- */
  .cat-hero{
    position:relative;overflow:hidden;
    background:linear-gradient(140deg,#fff 0%,#FDF3EE 52%,#FDEDE6 100%);
    border-bottom:1px solid var(--line);
  }
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(232,73,29,.05) 0 2px,transparent 2px 12px);
    pointer-events:none;
  }
  .cat-hero-grid{
    position:relative;
    display:grid;grid-template-columns:1fr;gap:32px;
    padding-top:36px;padding-bottom:44px;
  }
  @media(min-width:1024px){
    .cat-hero-grid{grid-template-columns:1.15fr .85fr;gap:48px;padding-top:56px;padding-bottom:64px;align-items:center;}
  }
  .cat-hero h1{
    font-size:clamp(28px,4.2vw,44px);line-height:1.25;font-weight:800;
    letter-spacing:.01em;color:var(--ink-900);margin:16px 0 14px;
  }
  .cat-hero h1 em{font-style:normal;color:var(--brand);}
  .cat-hero .sub{font-size:16.5px;color:var(--ink-500);max-width:640px;margin:0 0 24px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
  .hero-stats{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:14px;margin-top:30px;
  }
  @media(min-width:768px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));}}
  .hero-stat{
    background:rgba(255,255,255,.86);border:1px solid var(--line);
    border-radius:12px;padding:14px 16px;
  }
  .hero-stat b{display:block;font-size:21px;font-weight:800;color:var(--ink-900);line-height:1.3;}
  .hero-stat span{font-size:13px;color:var(--ink-500);}
  .hero-figure{
    position:relative;border-radius:16px;overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-sm);
    aspect-ratio:4/3;background:#fff;
  }
  .hero-figure img{width:100%;height:100%;object-fit:cover;}
  .hero-figure figcaption{
    position:absolute;left:0;right:0;bottom:0;
    padding:12px 16px;font-size:13px;color:#fff;
    background:linear-gradient(to top,rgba(20,23,28,.82),rgba(20,23,28,0));
  }

  /* ---------- Anchor pills ---------- */
  .pill-bar{
    position:relative;
    display:flex;gap:10px;overflow-x:auto;
    padding:14px 0;margin-top:-1px;
    scrollbar-width:thin;
  }
  .pill-bar::-webkit-scrollbar{height:4px;}
  .pill-bar::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px;}
  .pill{
    flex:0 0 auto;
    display:inline-flex;align-items:center;
    min-height:38px;padding:0 16px;
    border-radius:999px;border:1px solid var(--line);
    background:#fff;color:var(--ink-700);
    font-size:14px;font-weight:600;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .pill:hover{border-color:var(--accent);color:var(--accent);}
  .pill.active{background:var(--accent);border-color:var(--accent);color:#fff;}
  .pill.active:hover{color:#fff;}

  /* ---------- Zigzag ---------- */
  .zig{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
  @media(min-width:1024px){.zig{grid-template-columns:1fr 1fr;gap:52px;}}
  .zig.reverse .zig-media{order:-1;}
  @media(max-width:1023px){.zig.reverse .zig-media{order:2;}}
  .zig-media{
    border-radius:16px;overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--shadow-sm);background:#fff;
  }
  .zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .h3{font-size:19px;font-weight:700;color:var(--ink-900);margin:0 0 10px;line-height:1.45;}
  .check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:12px;}
  .check-list li{
    display:flex;gap:12px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);border-radius:12px;
    padding:13px 16px;font-size:15px;color:var(--ink-700);
  }
  .check-list i{color:var(--accent);margin-top:5px;font-size:14px;}
  .check-list b{color:var(--ink-900);font-weight:700;}

  /* ---------- Timeline ---------- */
  .timeline{list-style:none;margin:26px 0 0;padding:0 0 0 26px;position:relative;max-width:820px;}
  .timeline::before{
    content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;
    background:linear-gradient(to bottom,var(--brand),rgba(232,73,29,.12));
    border-radius:2px;
  }
  .timeline li{position:relative;padding:0 0 22px 4px;}
  .timeline li:last-child{padding-bottom:0;}
  .timeline li::before{
    content:"";position:absolute;left:-26px;top:7px;
    width:14px;height:14px;border-radius:50%;
    background:#fff;border:3px solid var(--brand);
  }
  .timeline time{
    display:inline-block;font-size:13px;font-weight:700;letter-spacing:.04em;
    color:var(--brand-700);background:var(--brand-050);
    border-radius:999px;padding:3px 11px;margin-bottom:6px;
  }
  .timeline strong{display:block;font-size:16.5px;color:var(--ink-900);font-weight:700;margin-bottom:4px;}
  .timeline p{margin:0;font-size:15px;color:var(--ink-500);}

  /* ---------- Dark stats band ---------- */
  .band{
    background:var(--ink-900);color:#fff;
    border-radius:16px;padding:30px 22px;
    position:relative;overflow:hidden;
  }
  .band::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.045) 0 2px,transparent 2px 14px);
  }
  .band-inner{position:relative;}
  .band h2{color:#fff;font-size:24px;font-weight:800;margin:0 0 8px;}
  @media(min-width:1024px){.band h2{font-size:28px;}}
  .band p{margin:0;color:rgba(255,255,255,.72);font-size:15px;max-width:640px;}
  .band-grid{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:18px;margin-top:26px;
  }
  @media(min-width:1024px){.band-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
  .band-card{
    border-left:3px solid var(--spark);
    padding-left:14px;
  }
  .band-card b{display:block;font-size:26px;font-weight:800;line-height:1.2;color:#fff;}
  .band-card span{display:block;font-size:13.5px;color:rgba(255,255,255,.7);margin-top:4px;}

  /* ---------- Scope grid ---------- */
  .scope-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px;}
  @media(min-width:768px){.scope-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  .scope-item{display:flex;gap:16px;align-items:flex-start;}
  .scope-icon{
    flex:0 0 auto;width:44px;height:44px;border-radius:12px;
    display:grid;place-items:center;
    background:var(--accent-050);color:#0A7A6E;font-size:18px;
  }
  .scope-item h3{font-size:17px;font-weight:700;color:var(--ink-900);margin:0 0 6px;}
  .scope-item p{margin:0;font-size:15px;color:var(--ink-500);}

  /* ---------- Related categories ---------- */
  .rel-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px;}
  @media(min-width:768px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
  .rel-card{display:flex;flex-direction:column;gap:12px;}
  .rel-card .thumb{border-radius:10px;overflow:hidden;border:1px solid var(--line);}
  .rel-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .rel-card .meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-500);}

  /* ---------- FAQ ---------- */
  .faq-list{margin-top:24px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:0 20px;margin-bottom:12px;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:#D6CFC6;}
  .faq-item[open]{box-shadow:var(--shadow-sm);border-color:#DCD5CB;}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:17px 0;font-size:16px;font-weight:700;color:var(--ink-900);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";font-size:20px;line-height:1;font-weight:600;color:var(--brand);
    transition:transform .2s ease;flex:0 0 auto;
  }
  .faq-item[open] summary::after{content:"−";}
  .faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:6px;}
  .faq-body{padding:0 0 18px;font-size:15px;color:var(--ink-500);max-width:820px;}
  .faq-body p{margin:0 0 .8em;}
  .faq-body p:last-child{margin-bottom:0;}

  /* ---------- CTA ---------- */
  .cta-block{
    background:linear-gradient(120deg,var(--brand) 0%,#F2703F 62%,#F2B705 130%);
    border-radius:18px;padding:34px 24px;color:#fff;
    display:grid;gap:22px;align-items:center;
  }
  @media(min-width:1024px){.cta-block{grid-template-columns:1.4fr .6fr;padding:44px 44px;}}
  .cta-block h2{font-size:26px;font-weight:800;margin:0 0 10px;color:#fff;line-height:1.35;}
  @media(min-width:1024px){.cta-block h2{font-size:30px;}}
  .cta-block p{margin:0;color:rgba(255,255,255,.9);font-size:15.5px;max-width:620px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .cta-block .btn-secondary{background:rgba(255,255,255,.96);border-color:transparent;color:var(--ink-900);}
  .cta-block .btn-secondary:hover{color:var(--brand-700);background:#fff;}
  .cta-block .btn-primary{background:var(--ink-900);}
  .cta-block .btn-primary:hover{background:#000;}

  /* ---------- Footer ---------- */
  .site-footer{
    margin-top:56px;background:#fff;border-top:1px solid var(--line);
    padding-top:44px;padding-bottom:24px;
  }
  .footer-grid{
    display:grid;grid-template-columns:1fr;gap:30px;
  }
  @media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand strong{display:block;font-size:16.5px;font-weight:800;color:var(--ink-900);line-height:1.25;}
  .footer-brand span span{display:block;font-size:11.5px;color:var(--ink-500);letter-spacing:.16em;}
  .footer-title{font-size:15px;font-weight:800;color:var(--ink-900);margin:0 0 14px;}
  .footer-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14.5px;color:var(--ink-500);}
  .footer-list a{color:var(--ink-500);}
  .footer-list a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom{
    margin-top:34px;padding-top:18px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13.5px;color:var(--ink-500);
  }

  /* ---------- Back to top ---------- */
  .to-top{
    position:fixed;right:18px;bottom:22px;z-index:70;
    width:46px;height:46px;border-radius:50%;
    display:grid;place-items:center;
    background:#fff;border:1px solid var(--ink-900);color:var(--ink-900);
    box-shadow:var(--shadow-sm);cursor:pointer;
    opacity:0;visibility:hidden;transform:translateY(8px);
    transition:opacity .22s ease,transform .22s ease,color .18s ease,background-color .18s ease,visibility .22s;
  }
  .to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
  .to-top:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  @media(max-width:520px){
    body{font-size:16px;}
    .card{padding:18px;}
    .band{padding:26px 18px;}
    .cta-block{padding:28px 18px;}
    .faq-item{padding:0 16px;}
  }

/* roulang page: category2 */
:root{
    --brand-600:#E8491D;
    --brand-700:#C33A12;
    --brand-050:#FDEDE6;
    --accent-600:#0E9E8F;
    --accent-050:#E6F6F4;
    --spark:#F2B705;
    --ink-900:#14171C;
    --ink-700:#2C323B;
    --ink-500:#5B6472;
    --line:#E4DFD8;
    --paper:#FAF7F2;
    --card:#FFFFFF;
    --r-card:14px;
    --r-ctl:10px;
    --shadow-1:0 1px 2px rgba(20,23,28,.04), 0 8px 24px -12px rgba(20,23,28,.12);
    --shadow-2:0 12px 32px -14px rgba(232,73,29,.28);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body.site-body{
    margin:0;
    background:var(--paper);
    color:var(--ink-700);
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16.5px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  body.site-body img{max-width:100%;display:block;height:auto}
  body.site-body a{color:var(--accent-600);text-decoration:none;transition:color .18s ease}
  body.site-body a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
  body.site-body h1,body.site-body h2,body.site-body h3,body.site-body h4{margin:0;color:var(--ink-900);letter-spacing:.01em}
  body.site-body ul,body.site-body ol{margin:0;padding:0}
  body.site-body button{font-family:inherit}
  .skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-900);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:99}
  .skip-link:focus{left:0;color:#fff;text-decoration:none}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
  @media (min-width:768px){.wrap{padding-left:24px;padding-right:24px}}
  @media (min-width:1024px){.wrap{padding-left:32px;padding-right:32px}}

  section[id]{scroll-margin-top:96px}

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(250,247,242,.94);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;gap:16px;min-height:70px}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
  .brand:hover{text-decoration:none}
  .brand-mark{
    width:40px;height:40px;border-radius:11px;flex:0 0 auto;
    background:linear-gradient(140deg,var(--brand-600),var(--brand-700));
    color:#fff;font-weight:800;font-size:18px;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 8px 18px -10px rgba(232,73,29,.7);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-text strong{font-size:16.5px;font-weight:800;color:var(--ink-900);letter-spacing:.01em}
  .brand-text span{font-size:11.5px;font-weight:600;color:var(--ink-500);letter-spacing:.14em}

  .nav-search{
    flex:1 1 auto;max-width:520px;
    display:flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    padding:5px 5px 5px 18px;
    box-shadow:var(--shadow-1);
    transition:border-color .18s ease, box-shadow .18s ease;
  }
  .nav-search:focus-within{border-color:var(--accent-600);box-shadow:0 0 0 3px rgba(14,158,143,.18)}
  .nav-search i{color:var(--ink-500);font-size:14px}
  .nav-search input{
    flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;
    font-size:15px;color:var(--ink-900);padding:8px 0;
  }
  .nav-search input::placeholder{color:#9AA2AE}
  .nav-search button{
    flex:0 0 auto;border:0;cursor:pointer;
    background:var(--brand-600);color:#fff;
    border-radius:999px;padding:9px 18px;
    font-size:14px;font-weight:700;letter-spacing:.02em;
    transition:background .18s ease, transform .18s ease;
  }
  .nav-search button:hover{background:var(--brand-700);transform:translateY(-1px)}
  .nav-search button:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}

  .main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
  .main-nav .nav-link{
    position:relative;display:inline-flex;align-items:center;height:40px;
    padding:0 13px;border-radius:9px;
    font-size:15px;font-weight:600;color:var(--ink-700);
    text-decoration:none;white-space:nowrap;
    transition:color .18s ease, background .18s ease;
  }
  .main-nav .nav-link:hover{color:var(--brand-600);background:var(--brand-050);text-decoration:none}
  .main-nav .nav-link.active{color:var(--brand-600)}
  .main-nav .nav-link.active::after{
    content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-600);
  }
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:10px;cursor:pointer;
    border:1px solid var(--line);background:#fff;color:var(--ink-900);font-size:17px;
  }
  .nav-toggle:hover{border-color:var(--accent-600);color:var(--accent-600)}
  .mobile-panel{display:none;border-top:1px solid var(--line);padding:14px 0 20px}
  .mobile-panel.is-open{display:block}
  .mobile-panel .nav-link{
    display:block;padding:12px 4px;font-size:15.5px;font-weight:600;color:var(--ink-700);
    border-bottom:1px solid var(--line);
  }
  .mobile-panel .nav-link.active{color:var(--brand-600)}
  @media (min-width:1024px){
    .nav-toggle{display:none}
    .mobile-panel,.mobile-panel.is-open{display:none}
  }
  @media (max-width:1023px){
    .main-nav{display:none}
    .nav-toggle{display:inline-flex;margin-left:auto}
    .nav-search{order:3;flex:0 0 100%;max-width:none}
    .header-inner{flex-wrap:wrap;padding-top:10px;padding-bottom:10px;gap:12px}
    .brand{order:1}
    .nav-toggle{order:2}
  }

  /* ============ Buttons ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--r-ctl);
    font-size:15.5px;font-weight:700;letter-spacing:.01em;
    border:1px solid transparent;cursor:pointer;text-decoration:none;
    transition:background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
  }
  .btn:hover{text-decoration:none}
  .btn:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}
  .btn-primary{background:var(--brand-600);color:#fff}
  .btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-secondary{background:#fff;border-color:var(--line);color:var(--ink-900)}
  .btn-secondary:hover{border-color:var(--accent-600);color:var(--accent-600);background:#fff}
  .btn-ghost{background:transparent;color:var(--ink-700);padding:0 14px}
  .btn-ghost:hover{background:var(--brand-050);color:var(--brand-700)}
  .btn-on-dark{background:#fff;color:var(--brand-700)}
  .btn-on-dark:hover{background:var(--spark);color:var(--ink-900);transform:translateY(-1px)}
  .btn-outline-dark{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
  .btn-outline-dark:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}

  /* ============ Tags / badges ============ */
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 13px;border-radius:999px;
    font-size:12.5px;font-weight:700;letter-spacing:.04em;
    background:var(--brand-050);color:var(--brand-700);
  }
  .tag-accent{background:var(--accent-050);color:#0A7A6E}
  .tag-dark{background:rgba(255,255,255,.12);color:#fff}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;
    padding:44px 0 48px;
    border-bottom:1px solid var(--line);
    background-image:
      linear-gradient(90deg, rgba(250,247,242,.97) 0%, rgba(250,247,242,.93) 52%, rgba(250,247,242,.62) 100%),
      url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center right;
  }
  .hero-title{
    font-size:clamp(28px,4vw,44px);
    line-height:1.24;font-weight:800;margin:16px 0 0;
  }
  .hero-title em{font-style:normal;color:var(--brand-600)}
  .hero-lead{font-size:17px;line-height:1.9;color:var(--ink-700);max-width:640px;margin:16px 0 0}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-points{list-style:none;display:flex;flex-direction:column;gap:10px;margin-top:26px}
  .hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-700)}
  .hero-points i{color:var(--accent-600);margin-top:5px;font-size:14px}
  .hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:0 20px 44px -22px rgba(20,23,28,.45);border:1px solid var(--line);background:#fff}
  .hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
  .hero-media figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-size:13px;color:#fff;background:linear-gradient(180deg,rgba(20,23,28,0),rgba(20,23,28,.78))}

  /* ============ Anchor pills ============ */
  .anchor-nav{
    display:flex;gap:10px;overflow-x:auto;
    padding:16px 0;border-bottom:1px solid var(--line);
    scrollbar-width:none;
  }
  .anchor-nav::-webkit-scrollbar{display:none}
  .pill{
    flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
    height:40px;padding:0 18px;border-radius:999px;
    border:1px solid var(--line);background:#fff;
    color:var(--ink-700);font-size:14px;font-weight:700;text-decoration:none;
    transition:all .18s ease;
  }
  .pill:hover{border-color:var(--accent-600);color:var(--accent-600);text-decoration:none}
  .pill.active{background:var(--accent-600);border-color:var(--accent-600);color:#fff}
  .pill.active:hover{color:#fff}
  .pill i{font-size:12.5px}

  /* ============ Sections ============ */
  .section{padding:52px 0}
  @media (min-width:768px){.section{padding:64px 0}}
  @media (min-width:1024px){.section{padding:84px 0}}
  .section-head{max-width:760px}
  .section-head h2{font-size:clamp(23px,2.6vw,31px);line-height:1.32;font-weight:800;position:relative;padding-left:16px}
  .section-head h2::before{
    content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:3px;
    background:var(--brand-600);box-shadow:8px 0 0 -2px var(--spark);
  }
  .section-head p{margin:14px 0 0 16px;color:var(--ink-500);font-size:15.5px;line-height:1.85}

  /* ============ Wide cards ============ */
  .wide-card{
    display:grid;overflow:hidden;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);
    transition:box-shadow .22s ease, transform .22s ease, border-color .22s ease;
  }
  .wide-card + .wide-card{margin-top:22px}
  .wide-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#F1DAD1}
  .wide-card:hover .wide-card-title{color:var(--brand-600)}
  @media (min-width:768px){.wide-card{grid-template-columns:330px minmax(0,1fr)}}
  .wide-card-media{position:relative;background:var(--brand-050);min-height:210px}
  .wide-card-media img{width:100%;height:100%;object-fit:cover;min-height:210px}
  .wide-card-body{padding:22px 24px 24px}
  @media (min-width:768px){.wide-card-body{padding:26px 30px 28px}}
  .wide-card-title{font-size:20px;font-weight:700;line-height:1.45;margin:12px 0 0;transition:color .18s ease}
  .wide-card-desc{font-size:15.5px;line-height:1.85;color:var(--ink-700);margin:12px 0 0}
  .check-list{list-style:none;display:flex;flex-direction:column;gap:9px;margin-top:16px}
  .check-list li{display:flex;align-items:flex-start;gap:9px;font-size:14.5px;color:var(--ink-500)}
  .check-list i{color:var(--accent-600);font-size:13px;margin-top:6px}
  .card-link{display:inline-flex;align-items:center;gap:7px;margin-top:18px;font-size:14.5px;font-weight:700;color:var(--accent-600)}
  .card-link:hover{color:var(--brand-600);text-decoration:none}
  .card-link i{font-size:12px;transition:transform .18s ease}
  .card-link:hover i{transform:translateX(3px)}

  /* ============ Data strip ============ */
  .data-strip{position:relative;background:var(--ink-900);color:#fff;overflow:hidden}
  .data-strip::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:repeating-linear-gradient(45deg, rgba(255,255,255,.055) 0 2px, transparent 2px 11px);
  }
  .data-grid{position:relative;display:grid;gap:26px;grid-template-columns:repeat(2,minmax(0,1fr));padding:44px 0}
  @media (min-width:1024px){.data-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;padding:60px 0}}
  .data-item{border-left:3px solid var(--spark);padding-left:16px}
  .data-num{font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:#fff}
  .data-num em{font-style:normal;color:var(--spark);font-size:.6em;margin-left:3px}
  .data-label{margin-top:8px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
  .data-item i{color:var(--spark);font-size:15px;margin-bottom:6px;display:block}

  /* ============ Two column ============ */
  .two-col{display:grid;gap:34px}
  @media (min-width:1024px){.two-col{grid-template-columns:minmax(0,1fr) 320px;gap:56px}}
  .doc-body{max-width:760px}
  .doc-body p{margin:0 0 1.05em;font-size:16.5px;line-height:1.9;color:var(--ink-700)}
  .doc-body h3{
    font-size:19px;font-weight:700;line-height:1.45;margin:1.9em 0 .7em;
    position:relative;padding-left:13px;
  }
  .doc-body h3::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;background:var(--accent-600)}
  .doc-body ul{margin:0 0 1.2em;padding-left:1.3em}
  .doc-body ul li{font-size:16px;line-height:1.85;color:var(--ink-700);margin-bottom:8px}
  .doc-body ul li::marker{color:var(--brand-600)}
  .note-box{
    background:var(--accent-050);border-left:4px solid var(--accent-600);
    border-radius:0 var(--r-card) var(--r-card) 0;
    padding:16px 20px;margin:22px 0 0;
    font-size:15px;line-height:1.8;color:#0A6E63;
  }

  .side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1)}
  .side-card + .side-card{margin-top:18px}
  .side-title{font-size:15px;font-weight:800;color:var(--ink-900);letter-spacing:.03em;margin:0 0 14px;display:flex;align-items:center;gap:8px}
  .side-title i{color:var(--brand-600);font-size:14px}
  .side-list{list-style:none;display:flex;flex-direction:column}
  .side-list li + li{border-top:1px solid var(--line)}
  .side-list a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px 2px;font-size:14.5px;font-weight:600;color:var(--ink-700);text-decoration:none;
    transition:color .18s ease, background .18s ease, padding-left .18s ease;
  }
  .side-list a:hover{color:var(--brand-600);padding-left:6px;text-decoration:none}
  .side-list a i{font-size:11.5px;color:var(--ink-500)}
  .side-tip{background:var(--brand-050);border:1px solid #F6D9CD;border-radius:var(--r-card);padding:20px;margin-top:18px}
  .side-tip p{margin:0;font-size:14px;line-height:1.8;color:#8A3A1C}
  .side-tip a{font-weight:700;color:var(--brand-700)}

  /* ============ Related cards ============ */
  .related-grid{display:grid;gap:22px;grid-template-columns:1fr;margin-top:34px}
  @media (min-width:640px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  .rel-card{
    display:flex;flex-direction:column;overflow:hidden;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);
    transition:box-shadow .22s ease, transform .22s ease, border-color .22s ease;
  }
  .rel-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#F1DAD1}
  .rel-card:hover .rel-title{color:var(--brand-600)}
  .rel-media{overflow:hidden;background:var(--accent-050)}
  .rel-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
  .rel-card:hover .rel-media img{transform:scale(1.04)}
  .rel-body{padding:20px 22px 24px}
  .rel-title{font-size:18px;font-weight:700;line-height:1.45;margin:12px 0 0;transition:color .18s ease}
  .rel-text{font-size:14.5px;line-height:1.8;color:var(--ink-500);margin:10px 0 0}

  /* ============ FAQ ============ */
  .faq-list{margin-top:32px;max-width:860px}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
  .faq-item + .faq-item{margin-top:12px}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:16.5px;font-weight:700;color:var(--ink-900);line-height:1.55;
    transition:background .18s ease, color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:#FDFAF7}
  .faq-item summary:focus-visible{outline:2px solid var(--accent-600);outline-offset:-3px}
  .faq-item[open] summary{color:var(--brand-600)}
  .faq-item[open] summary:hover{background:#fff}
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:8px;
    display:flex;align-items:center;justify-content:center;
    background:var(--brand-050);color:var(--brand-700);
    font-size:13px;font-weight:800;line-height:1;
    transition:transform .2s ease, background .2s ease, color .2s ease;
  }
  .faq-item[open] .faq-icon{background:var(--brand-600);color:#fff;transform:rotate(180deg)}
  .faq-body{padding:0 22px 20px;font-size:15.5px;line-height:1.85;color:var(--ink-500)}

  /* ============ CTA ============ */
  .cta-band{position:relative;background:var(--ink-900);overflow:hidden;color:#fff}
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:repeating-linear-gradient(45deg, rgba(255,255,255,.05) 0 2px, transparent 2px 12px);
  }
  .cta-inner{position:relative;display:grid;gap:26px;padding:52px 0}
  @media (min-width:1024px){.cta-inner{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:44px;padding:68px 0}}
  .cta-inner h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:800;color:#fff}
  .cta-inner p{margin:14px 0 0;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.74);max-width:640px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

  /* ============ Footer ============ */
  .site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding-top:52px;border-top:1px solid rgba(255,255,255,.08)}
  .footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand strong{display:block;color:#fff;font-size:16px;font-weight:800;line-height:1.3}
  .footer-brand span span{font-size:11.5px;color:rgba(255,255,255,.6);letter-spacing:.14em}
  .footer-title{font-size:14px;font-weight:800;color:#fff;letter-spacing:.06em;margin:0 0 14px}
  .footer-list{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:14.5px;line-height:1.7}
  .footer-list a{color:rgba(255,255,255,.75);text-decoration:none}
  .footer-list a:hover{color:#4FD8C8;text-decoration:underline;text-underline-offset:3px}
  .site-footer p{color:rgba(255,255,255,.68)}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
    margin-top:38px;padding:18px 0 24px;
    border-top:1px solid rgba(255,255,255,.1);
    font-size:13.5px;color:rgba(255,255,255,.55);
  }

  /* ============ Breadcrumb ============ */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-500);padding-top:18px}
  .breadcrumb a{color:var(--ink-500);text-decoration:none}
  .breadcrumb a:hover{color:var(--brand-600);text-decoration:none}
  .breadcrumb .current{color:var(--brand-700);font-weight:600}
  .breadcrumb i{font-size:10px;color:#A8AFB8}