/* roulang page: index */
:root{
  --ink:#17130F; --ink-2:#3A322B; --muted:#7A6E64;
  --paper:#FAF6F1; --paper-2:#F2EAE1;
  --line:rgba(23,19,15,.10);
  --brand:#C75B39; --brand-dark:#A8462A; --brand-soft:rgba(199,91,57,.10);
  --accent:#4F6B60; --sand:#E8DCD0;
  --r-sm:10px; --r-md:16px; --r-lg:20px; --r-xl:24px;
  --shadow:0 1px 2px rgba(23,19,15,.04),0 12px 32px -12px rgba(23,19,15,.12);
  --shadow-lg:0 2px 6px rgba(23,19,15,.06),0 20px 44px -16px rgba(23,19,15,.20);
  --container: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);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s cubic-bezier(.2,.7,.3,1)}
a:hover{color:var(--brand)}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.site-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media (max-width:1024px){.site-container{padding:0 24px}}
@media (max-width:520px){.site-container{padding:0 20px}}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(250,246,241,.86);
  backdrop-filter:saturate(140%) blur(8px);-webkit-backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;transition:border-color .2s ease,background .2s ease;
}
.site-header.is-scrolled{border-bottom:1px solid var(--line);background:rgba(250,246,241,.94)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 16px -8px rgba(199,91,57,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.main-nav a{
  position:relative;padding:10px 12px;font-size:15px;color:var(--ink-2);border-radius:var(--r-sm);
  font-weight:500;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s cubic-bezier(.2,.7,.3,1);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink);font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative;display:flex;align-items:center}
.search-box svg{position:absolute;left:14px;color:var(--muted);pointer-events:none}
.search-box input{
  width:220px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;
  padding:0 16px 0 40px;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(199,91,57,.14)}
.ghost-link{font-size:14px;color:var(--ink-2);padding:8px 4px;border-bottom:2px solid transparent}
.ghost-link:hover{border-bottom-color:var(--brand);color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .18s cubic-bezier(.2,.7,.3,1),background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(199,91,57,.9)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--paper-2);color:var(--ink);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0) scale(.99)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--paper);z-index:80;
  transform:translateX(100%);transition:transform .2s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:var(--shadow-lg);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.drawer-nav{display:flex;flex-direction:column;margin-top:16px;border-top:1px solid var(--line)}
.drawer-nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.drawer-actions .btn{width:100%}
.drawer-backdrop{position:fixed;inset:0;background:rgba(23,19,15,.35);z-index:70;opacity:0;pointer-events:none;transition:opacity .2s ease}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}

/* sections */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.bg-paper2{background:var(--paper-2)}
.bg-ink{background:var(--ink);color:#FAF6F1}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.2;font-weight:800;letter-spacing:-.01em}
.section-desc{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85}
.bg-ink .section-desc{color:rgba(250,246,241,.72)}
.bg-ink .section-title{color:#FAF6F1}

/* hero */
.hero{position:relative;padding:64px 0 88px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/264443cc01c98c08.webp');background-size:cover;background-position:center;opacity:.16}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(250,246,241,.5) 0%,rgba(250,246,241,.94) 62%,var(--paper) 100%)}
.hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--sand);color:var(--ink);border-radius:999px;padding:7px 16px;font-size:12px;font-weight:600;letter-spacing:.04em}
.hero h1{font-size:clamp(32px,4.6vw,54px);line-height:1.12;font-weight:800;letter-spacing:-.02em;margin-top:20px}
.hero h1 span{color:var(--brand)}
.hero-sub{margin-top:18px;font-size:17px;font-weight:600;color:var(--ink-2)}
.hero-text{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.9;max-width:580px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:26px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.hero-trust div{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
.hero-trust svg{color:var(--accent);flex:0 0 auto}
.hero-visual{position:relative}
.hero-shot{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line);background:#fff}
.hero-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.float-card{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--shadow);display:flex;align-items:center;gap:10px;font-size:13px;
}
.float-card strong{display:block;font-size:14px;font-weight:700;line-height:1.3}
.float-card small{color:var(--muted);font-size:11px}
.float-a{top:-18px;left:-14px}
.float-b{bottom:-20px;right:-10px}
.float-icon{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--brand-soft);color:var(--brand);flex:0 0 auto}
.float-icon.accent{background:rgba(79,107,96,.12);color:var(--accent)}

/* chips */
.chip-row{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-2);
  transition:border-color .18s ease,color .18s ease,transform .18s ease,background .18s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}

/* feature matrix */
.feature-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;margin-top:44px}
.feature-left{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feature-card,.feature-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:0;overflow:hidden;
  position:relative;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.feature-card::before,.feature-mini::before{
  content:"";position:absolute;top:0;left:0;height:2px;width:0;background:var(--brand);transition:width .28s ease;z-index:2;
}
.feature-card:hover,.feature-mini:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(199,91,57,.28)}
.feature-card:hover::before,.feature-mini:hover::before{width:100%}
.feature-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.feature-card .fc-body{padding:22px 24px 26px}
.feature-card h3{font-size:19px;font-weight:700;letter-spacing:-.01em}
.feature-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8}
.feature-card ul{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.feature-card li{display:flex;gap:8px;font-size:13px;color:var(--ink-2)}
.feature-card li svg{color:var(--accent);flex:0 0 auto;margin-top:5px}
.feature-side{display:grid;grid-template-rows:repeat(3,1fr);gap:24px}
.feature-mini{padding:22px 24px;display:flex;flex-direction:column;justify-content:center}
.mini-icon{width:38px;height:38px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feature-mini h3{font-size:16px;font-weight:700}
.feature-mini p{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}

/* stats */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:44px}
.stat-item .num{font-size:clamp(32px,3.6vw,44px);font-weight:800;line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:#FAF6F1}
.stat-item .num em{font-style:normal;font-size:16px;font-weight:600;margin-left:4px;color:rgba(250,246,241,.7)}
.stat-item p{margin-top:12px;font-size:13px;color:rgba(250,246,241,.68);line-height:1.7}
.stat-item{border-top:1px solid rgba(250,246,241,.16);padding-top:22px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px;position:relative}
.step{position:relative;padding:26px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(199,91,57,.28)}
.step-num{font-size:40px;font-weight:800;color:rgba(199,91,57,.22);line-height:1;font-variant-numeric:tabular-nums}
.step h3{font-size:16px;font-weight:700;margin-top:12px}
.step p{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.75}

/* topics */
.topic-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;margin-top:44px}
.topic-stack{display:grid;gap:24px}
.topic-card{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:#fff;transition:transform .2s ease,box-shadow .2s ease}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.topic-card:hover img{transform:scale(1.02)}
.topic-tag{position:absolute;top:14px;left:14px;background:rgba(250,246,241,.94);color:var(--ink);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px}
.topic-body{padding:20px 22px 24px}
.topic-body h3{font-size:18px;font-weight:700}
.topic-body p{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.75}
.topic-block{
  background:var(--ink);color:#FAF6F1;border-radius:var(--r-lg);padding:32px 28px;display:flex;flex-direction:column;justify-content:space-between;
  transition:transform .2s ease,box-shadow .2s ease;position:relative;overflow:hidden;
}
.topic-block::after{content:"";position:absolute;right:-40px;bottom:-40px;width:160px;height:160px;border-radius:50%;background:rgba(199,91,57,.24)}
.topic-block:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.topic-block h3{font-size:24px;font-weight:800;line-height:1.3;position:relative;z-index:1}
.topic-block p{margin-top:12px;font-size:13px;color:rgba(250,246,241,.72);line-height:1.8;position:relative;z-index:1}
.topic-link{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:14px;font-weight:600;color:#FAF6F1;position:relative;z-index:1}
.topic-block:hover .topic-link{color:var(--brand)}
.topic-link svg{transition:transform .2s ease}
.topic-block:hover .topic-link svg,.topic-body a:hover svg{transform:translateX(4px)}

/* stories */
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.story-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;display:flex;flex-direction:column}
.story-quote{font-size:34px;line-height:1;color:var(--sand);font-weight:800;font-family:Georgia,serif}
.story-card p{margin-top:14px;font-size:14px;color:var(--ink-2);line-height:1.85;flex:1}
.story-meta{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--sand);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--ink-2);flex:0 0 auto}
.story-meta strong{display:block;font-size:14px;font-weight:700}
.story-meta small{color:var(--muted);font-size:12px}
.story-photo{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);min-height:220px}
.story-photo img{width:100%;height:100%;object-fit:cover;min-height:220px}
.story-note{margin-top:18px;font-size:12px;color:var(--muted)}

/* safety */
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.check-list{display:flex;flex-direction:column;gap:20px;margin-top:32px}
.check-item{display:flex;gap:14px}
.check-icon{width:30px;height:30px;border-radius:10px;background:rgba(79,107,96,.12);color:var(--accent);display:flex;align-items:center;justify-content:center;flex:0 0 auto;margin-top:3px}
.check-item h3{font-size:16px;font-weight:700}
.check-item p{margin-top:5px;font-size:13px;color:var(--muted);line-height:1.75}
.safety-visual{position:relative}
.safety-visual img{border-radius:var(--r-xl);box-shadow:var(--shadow-lg);aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
.badge-float{
  position:absolute;left:-16px;bottom:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;
}
.badge-float strong{display:block;font-size:14px;font-weight:700}
.badge-float small{font-size:12px;color:var(--muted)}

/* news */
.news-layout{display:grid;grid-template-columns:1fr 340px;gap:32px;margin-top:44px;align-items:start}
.post-list{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(199,91,57,.35)}
.post-thumb{overflow:hidden;background:var(--paper-2)}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-tag{align-self:flex-start;background:var(--sand);color:var(--ink-2);font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px}
.post-title{
  margin-top:12px;font-size:16px;font-weight:700;line-height:1.5;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.post-time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.post-more{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:5px}
.post-card:hover .post-more svg{transform:translateX(3px)}
.post-more svg{transition:transform .2s ease}
.post-empty{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);
  padding:56px 24px;text-align:center;color:var(--muted);font-size:14px;
}
.post-empty svg{margin:0 auto 12px;color:var(--sand)}
.news-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px}
.aside-card h3{font-size:15px;font-weight:700;padding-bottom:14px;border-bottom:1px solid var(--line)}
.hot-list{margin-top:6px}
.hot-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-index{font-size:14px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;width:20px;flex:0 0 auto;line-height:1.6}
.hot-list a{font-size:13px;line-height:1.6;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.aside-cta{background:var(--ink);color:#FAF6F1;border-radius:var(--r-md);padding:24px}
.aside-cta h3{font-size:16px;font-weight:700}
.aside-cta p{margin-top:10px;font-size:13px;color:rgba(250,246,241,.72);line-height:1.75}
.aside-cta .btn{width:100%;margin-top:18px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-more svg{transition:transform .2s ease}
.link-more:hover svg{transform:translateX(4px)}

/* city rank */
.city-list{margin-top:36px;border-top:1px solid var(--line)}
.city-row{
  display:grid;grid-template-columns:64px 1.1fr 2fr auto;gap:20px;align-items:center;
  padding:20px 16px;border-bottom:1px solid var(--line);transition:background .18s ease;
}
.city-row:hover{background:var(--paper-2)}
.city-rank{font-size:30px;font-weight:800;color:rgba(23,19,15,.14);line-height:1;font-variant-numeric:tabular-nums}
.city-name{font-size:16px;font-weight:700}
.city-desc{font-size:13px;color:var(--muted);line-height:1.7}
.city-tag{font-size:12px;font-weight:600;color:var(--accent);background:rgba(79,107,96,.10);border-radius:999px;padding:5px 12px;white-space:nowrap}

/* guide */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.guide-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;transition:transform .2s ease,box-shadow .2s ease}
.guide-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.guide-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center}
.guide-card h3{margin-top:16px;font-size:17px;font-weight:700}
.guide-card p{margin-top:10px;font-size:13px;color:var(--muted);line-height:1.8}
.guide-card a{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13px;font-weight:600;color:var(--brand)}

/* compare */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:44px}
.compare-col{border-radius:var(--r-lg);padding:30px 28px;border:1px solid var(--line);background:#fff}
.compare-col.alt{background:var(--paper-2);color:var(--muted)}
.compare-col.highlight{border:1px solid var(--brand);background:#fff;box-shadow:var(--shadow)}
.compare-col h3{font-size:18px;font-weight:800;letter-spacing:-.01em}
.compare-col.alt h3{color:var(--muted)}
.compare-col.highlight h3{color:var(--brand)}
.compare-list{margin-top:20px;display:flex;flex-direction:column;gap:14px}
.compare-list li{display:flex;gap:10px;font-size:14px;line-height:1.7}
.compare-col.alt .compare-list li{color:var(--muted)}
.compare-list svg{flex:0 0 auto;margin-top:5px}
.compare-col.alt .compare-list svg{color:rgba(23,19,15,.3)}
.compare-col.highlight .compare-list svg{color:var(--accent)}

/* partners */
.partner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:40px}
.partner-cell{
  height:72px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:var(--ink-2);
  opacity:.85;transition:opacity .18s ease,border-color .18s ease,transform .18s ease;
}
.partner-cell:hover{opacity:1;border-color:rgba(199,91,57,.35);transform:translateY(-2px)}

/* faq */
.faq-list{margin-top:36px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--brand);flex:0 0 auto;transition:transform .2s ease,background .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--brand-soft)}
.faq-answer{padding:0 4px 24px;font-size:14px;color:var(--muted);line-height:1.85;max-width:860px}

/* guarantee */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.guarantee-item{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-2)}
.guarantee-item svg{color:var(--accent);flex:0 0 auto}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-info p{margin-top:18px;font-size:14px;color:var(--muted);line-height:1.9}
.contact-meta{display:flex;flex-direction:column;gap:12px;margin-top:26px;font-size:13px;color:rgba(250,246,241,.75)}
.contact-meta span{display:flex;align-items:center;gap:10px}
.contact-meta svg{color:var(--brand);flex:0 0 auto}
.contact-form{background:rgba(250,246,241,.06);border:1px solid rgba(250,246,241,.16);border-radius:var(--r-lg);padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:rgba(250,246,241,.86)}
.field input,.field textarea{
  height:46px;border-radius:12px;border:1px solid rgba(250,246,241,.2);background:rgba(250,246,241,.08);
  padding:0 14px;font-size:14px;color:#FAF6F1;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(250,246,241,.45)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(199,91,57,.22);background:rgba(250,246,241,.12)}
.form-submit{width:100%;margin-top:6px}
.form-tip{margin-top:14px;font-size:12px;color:rgba(250,246,241,.6);line-height:1.7}
.form-tip strong{color:var(--brand)}

/* footer */
.site-footer{background:var(--ink);color:rgba(250,246,241,.8);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand .brand-text strong{color:#FAF6F1}
.footer-brand .brand-text em{color:rgba(250,246,241,.6)}
.footer-brand p{margin-top:18px;font-size:13px;line-height:1.85;color:rgba(250,246,241,.62);max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#FAF6F1;letter-spacing:.02em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:13px;color:rgba(250,246,241,.62)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid rgba(250,246,241,.14);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.footer-bottom p{font-size:12px;color:rgba(250,246,241,.5);line-height:1.7}
.footer-bottom .brand-full{color:rgba(250,246,241,.7)}

/* animation */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1)}
.reveal.is-visible{opacity:1;transform:none}

/* responsive */
@media (max-width:1024px){
  .main-nav{display:none}
  .search-box{display:none}
  .ghost-link{display:none}
  .header-actions .btn-brand{display:none}
  .nav-toggle{display:flex}
  .hero{padding:40px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:560px}
  .float-a{left:0}
  .float-b{right:0}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{grid-template-columns:repeat(3,1fr);grid-template-rows:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:1fr}
  .story-grid{grid-template-columns:repeat(2,1fr)}
  .safety-grid{grid-template-columns:1fr;gap:36px}
  .news-layout{grid-template-columns:1fr}
  .news-aside{position:static;grid-row:auto}
  .city-row{grid-template-columns:48px 1fr auto;row-gap:6px}
  .city-desc{grid-column:2/-1}
  .guide-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .guarantee-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .post-list{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .story-grid{grid-template-columns:1fr}
  .feature-left{grid-template-columns:1fr}
  .feature-side{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .guide-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero-trust{gap:16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
}
@media (max-width:520px){
  .header-inner{height:62px;gap:12px}
  .brand-text em{display:none}
  .hero h1{font-size:30px}
  .hero-cta .btn{width:100%}
  .stats-grid{grid-template-columns:1fr 1fr}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .guarantee-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .city-row{grid-template-columns:40px 1fr;row-gap:4px}
  .city-tag{grid-column:2}
  .contact-form{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#17130F; --ink-2:#3A322B; --muted:#7A6E64;
  --paper:#FAF6F1; --paper-2:#F2EAE1;
  --line:rgba(23,19,15,.10);
  --brand:#C75B39; --brand-dark:#A8462A; --brand-soft:rgba(199,91,57,.10);
  --accent:#4F6B60; --sand:#E8DCD0;
  --r-sm:10px; --r-md:16px; --r-lg:20px; --r-xl:24px;
  --shadow:0 1px 2px rgba(23,19,15,.04),0 12px 32px -12px rgba(23,19,15,.12);
  --shadow-lg:0 2px 6px rgba(23,19,15,.06),0 20px 44px -16px rgba(23,19,15,.20);
  --container: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);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s cubic-bezier(.2,.7,.3,1)}
a:hover{color:var(--brand)}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.site-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(250,246,241,.86);
  backdrop-filter:saturate(140%) blur(8px);-webkit-backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;transition:border-color .2s ease,background .2s ease;
}
.site-header.is-scrolled{border-bottom:1px solid var(--line);background:rgba(250,246,241,.94)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 16px -8px rgba(199,91,57,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.main-nav a{position:relative;padding:10px 12px;font-size:15px;color:var(--ink-2);border-radius:var(--r-sm);font-weight:500;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s cubic-bezier(.2,.7,.3,1)}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink);font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative;display:flex;align-items:center}
.search-box svg{position:absolute;left:14px;color:var(--muted);pointer-events:none}
.search-box input{width:220px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;padding:0 16px 0 40px;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(199,91,57,.14)}
.ghost-link{font-size:14px;color:var(--ink-2);font-weight:500;padding:8px 4px;border-bottom:1px solid transparent}
.ghost-link:hover{border-bottom-color:var(--brand);color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .18s cubic-bezier(.2,.7,.3,1),background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(199,91,57,.9)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--paper-2);color:var(--ink);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0) scale(.99)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--paper);z-index:80;transform:translateX(100%);transition:transform .2s cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:var(--shadow-lg)}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:20px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;margin-top:16px;border-top:1px solid var(--line)}
.drawer-nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.drawer-actions .btn{width:100%}
.mobile-drawer .search-box input{width:100%}
.drawer-backdrop{position:fixed;inset:0;background:rgba(23,19,15,.35);z-index:70;opacity:0;pointer-events:none;transition:opacity .2s ease}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.section-title{font-size:clamp(24px,3vw,32px);line-height:1.2;font-weight:800;letter-spacing:-.01em;margin:0}
.section-desc{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85}
.bg-soft{background:var(--paper-2)}
.bg-ink{background:var(--ink);color:#FAF6F1}
.bg-ink .section-title,.bg-ink h2,.bg-ink h3{color:#FAF6F1}
.bg-ink .section-desc{color:rgba(250,246,241,.72)}

/* ============ 文章头部 ============ */
.article-hero{padding:44px 0 48px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb .sep{color:rgba(23,19,15,.25)}
.breadcrumb .current{color:var(--ink-2)}
.article-channel{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--brand);margin:0 0 14px}
.article-channel .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.article-title{font-size:clamp(26px,3.6vw,42px);line-height:1.24;font-weight:800;letter-spacing:-.015em;margin:0 0 20px;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-bottom:32px}
.article-meta .sep{width:4px;height:4px;border-radius:50%;background:rgba(23,19,15,.2)}
.tag-sand{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--sand);color:var(--ink-2);font-size:12px;font-weight:600}
.article-cover{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:16/9;background:var(--paper-2)}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ============ 正文 + 侧栏 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}
.article-prose{max-width:720px;font-size:16.5px;line-height:1.85;color:var(--ink-2)}
.article-prose p{margin:0 0 1.1em}
.article-prose h2{position:relative;font-size:21px;font-weight:700;color:var(--ink);margin:2em 0 .8em;padding-left:16px;line-height:1.45}
.article-prose h2::before{content:"";position:absolute;left:0;top:.35em;width:3px;height:1.2em;border-radius:2px;background:var(--brand)}
.article-prose h3{font-size:17px;font-weight:700;color:var(--ink);margin:1.6em 0 .6em}
.article-prose ul,.article-prose ol{padding-left:0;margin:0 0 1.2em;list-style:none}
.article-prose ul li,.article-prose ol li{position:relative;padding-left:22px;margin-bottom:.5em}
.article-prose ul li::before{content:"";position:absolute;left:4px;top:.75em;width:6px;height:6px;border-radius:2px;background:var(--brand)}
.article-prose ol{counter-reset:li}
.article-prose ol li{counter-increment:li}
.article-prose ol li::before{content:counter(li);position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--brand);line-height:1.9}
.article-prose blockquote{margin:1.6em 0;padding:16px 20px;background:var(--paper-2);border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2)}
.article-prose blockquote p:last-child{margin-bottom:0}
.article-prose img{border-radius:var(--r-md);margin:1.6em 0;box-shadow:var(--shadow)}
.article-prose figure{margin:1.6em 0}
.article-prose figcaption{text-align:center;font-size:12px;color:var(--muted);margin-top:10px}
.article-prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px}
.article-prose th,.article-prose td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left}
.article-prose th{background:var(--paper-2);font-weight:700;color:var(--ink)}
.article-prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-prose strong{color:var(--ink);font-weight:700}
.post-empty{background:var(--paper-2);border:1px dashed rgba(23,19,15,.18);border-radius:var(--r-lg);padding:56px 24px;text-align:center}
.post-empty .empty-title{font-size:18px;font-weight:800;color:var(--ink);margin:0 0 8px}
.post-empty .empty-desc{font-size:14px;color:var(--muted);margin:0 0 20px}

.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow)}
.aside-card h3{font-size:14px;font-weight:800;letter-spacing:.04em;margin:0 0 14px;color:var(--ink)}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{display:block;padding:8px 10px;border-radius:var(--r-sm);font-size:14px;color:var(--ink-2);border-left:2px solid transparent;transition:background .18s ease,color .18s ease}
.toc-list a:hover{background:var(--paper-2);color:var(--brand)}
.toc-list a.active{color:var(--brand);font-weight:700;border-left-color:var(--brand);background:var(--brand-soft)}
.hot-list{list-style:none;margin:0;padding:0}
.hot-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.6;color:var(--ink-2)}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list .num{font-size:15px;font-weight:800;color:rgba(23,19,15,.22);font-variant-numeric:tabular-nums;flex:0 0 auto}
.hot-list li:nth-child(-n+3) .num{color:var(--brand)}
.aside-cta{background:var(--ink);color:#FAF6F1;border-radius:var(--r-md);padding:24px}
.aside-cta h3{color:#FAF6F1;font-size:17px;font-weight:800;margin:0 0 8px;line-height:1.45}
.aside-cta p{margin:0 0 16px;font-size:13px;color:rgba(250,246,241,.7);line-height:1.7}
.aside-cta .btn{width:100%}

/* ============ 要点回顾 ============ */
.recap-card{background:var(--paper-2);border-radius:var(--r-xl);padding:40px}
.recap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 32px;margin-top:26px}
.recap-item{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.75}
.recap-item .mark{flex:0 0 auto;width:24px;height:24px;border-radius:8px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:2px}

/* ============ 安全核对 ============ */
.safety-block{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:48px;align-items:center}
.check-list{list-style:none;margin:26px 0 0;padding:0;display:flex;flex-direction:column;gap:16px}
.check-list li{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease}
.check-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.check-icon{flex:0 0 auto;width:34px;height:34px;border-radius:11px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center}
.check-list h4{margin:0 0 4px;font-size:15px;font-weight:800;color:var(--ink)}
.check-list p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7}
.safety-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--paper-2)}
.safety-figure img{width:100%;height:100%;object-fit:cover}

/* ============ 合规声明 ============ */
.compliance-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;background:var(--paper)}
.compliance-inner{display:flex;flex-wrap:wrap;gap:10px 28px;font-size:13px;color:var(--muted)}
.compliance-inner strong{color:var(--ink-2);font-weight:700}

/* ============ 推荐卡 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:36px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(199,91,57,.4);color:inherit}
.post-thumb{aspect-ratio:16/10;background:var(--paper-2);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-tag{align-self:flex-start;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--sand);color:var(--ink-2)}
.post-title{font-size:16px;font-weight:700;line-height:1.5;margin:0;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-excerpt{font-size:13px;color:var(--muted);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);padding-top:10px;border-top:1px solid var(--line)}
.post-link{color:var(--brand);font-weight:600}

/* ============ 上一篇 / 下一篇 ============ */
.prevnext{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pn-card{display:block;padding:22px 24px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease}
.pn-card:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-2px);color:inherit}
.pn-label{font-size:12px;color:var(--muted);margin-bottom:6px;letter-spacing:.04em}
.pn-title{font-size:15px;font-weight:700;line-height:1.55;color:var(--ink)}
.back-row{text-align:center;margin-top:28px}
.back-link{font-size:14px;color:var(--ink-2);border-bottom:1px solid var(--line);padding-bottom:2px}
.back-link:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* ============ 转化条 ============ */
.cta-band{background:var(--ink);color:#FAF6F1;padding:56px 0}
.cta-band-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3;margin:0 0 8px;color:#FAF6F1;letter-spacing:-.01em}
.cta-band p{margin:0;font-size:14px;color:rgba(250,246,241,.7);line-height:1.8;max-width:560px}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:rgba(250,246,241,.82);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text strong{color:#FAF6F1}
.footer-brand .brand-text em{color:rgba(250,246,241,.55)}
.footer-brand p{margin:0;font-size:13.5px;line-height:1.85;color:rgba(250,246,241,.62);max-width:340px}
.footer-col h4{font-size:14px;font-weight:800;color:#FAF6F1;margin:0 0 16px;letter-spacing:.02em}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:rgba(250,246,241,.66)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(250,246,241,.14);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:12.5px;color:rgba(250,246,241,.5)}
.footer-bottom p{margin:0}
.brand-full{color:rgba(250,246,241,.72)}

/* ============ 动效 ============ */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1)}
.js .reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .site-container{padding:0 24px}
  .main-nav{display:none}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-aside{position:static}
  .safety-block{grid-template-columns:minmax(0,1fr);gap:32px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
  .recap-card{padding:32px}
}
@media (max-width:768px){
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .prevnext{grid-template-columns:minmax(0,1fr)}
  .recap-grid{grid-template-columns:minmax(0,1fr)}
  .recap-card{padding:24px}
  .section{padding:56px 0}
  .ghost-link{display:none}
  .article-cover{aspect-ratio:16/10}
  .article-hero{padding:28px 0 36px}
  .cta-band-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .site-container{padding:0 18px}
  .brand-text em{display:none}
  .header-actions .btn-brand{display:none}
  .article-meta{font-size:12.5px;gap:10px}
  .btn{height:42px;padding:0 18px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --ink:#17130F; --ink-2:#3A322B; --muted:#7A6E64;
  --paper:#FAF6F1; --paper-2:#F2EAE1;
  --line:rgba(23,19,15,.10);
  --brand:#C75B39; --brand-dark:#A8462A; --brand-soft:rgba(199,91,57,.10);
  --accent:#4F6B60; --sand:#E8DCD0;
  --r-sm:10px; --r-md:16px; --r-lg:20px; --r-xl:24px;
  --shadow:0 1px 2px rgba(23,19,15,.04),0 12px 32px -12px rgba(23,19,15,.12);
  --shadow-lg:0 2px 6px rgba(23,19,15,.06),0 20px 44px -16px rgba(23,19,15,.20);
  --container: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);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s cubic-bezier(.2,.7,.3,1)}
a:hover{color:var(--brand)}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.site-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:768px){.site-container{padding:0 24px}}
@media(min-width:1200px){.site-container{padding:0 32px}}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(250,246,241,.86);
  backdrop-filter:saturate(140%) blur(8px);-webkit-backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;transition:border-color .2s ease,background .2s ease;
}
.site-header.is-scrolled{border-bottom:1px solid var(--line);background:rgba(250,246,241,.94)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 16px -8px rgba(199,91,57,.7);flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.main-nav a{position:relative;padding:10px 12px;font-size:15px;color:var(--ink-2);border-radius:var(--r-sm);font-weight:500;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s cubic-bezier(.2,.7,.3,1)}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink);font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative;display:flex;align-items:center}
.search-box svg{position:absolute;left:14px;color:var(--muted);pointer-events:none}
.search-box input{width:220px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;padding:0 16px 0 40px;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(199,91,57,.14)}
.ghost-link{font-size:14px;color:var(--ink-2);font-weight:500;padding:8px 4px;border-bottom:1px solid transparent}
.ghost-link:hover{border-bottom-color:var(--brand);color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;transition:transform .18s cubic-bezier(.2,.7,.3,1),background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;white-space:nowrap}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(199,91,57,.9)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--paper-2);color:var(--ink);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0) scale(.99)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--paper);z-index:80;transform:translateX(100%);transition:transform .2s cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:var(--shadow-lg)}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;background:#fff}
.drawer-nav{display:flex;flex-direction:column;margin-top:16px;border-top:1px solid var(--line)}
.drawer-nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.drawer-actions .btn{width:100%}
.drawer-backdrop{position:fixed;inset:0;background:rgba(23,19,15,.35);z-index:70;opacity:0;pointer-events:none;transition:opacity .2s ease}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}
@media(max-width:1024px){
  .main-nav,.search-box,.ghost-link{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
}

/* shared section */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.2;font-weight:800;letter-spacing:-.01em;margin:0}
.section-desc{margin:14px 0 0;font-size:15px;color:var(--muted);line-height:1.85}

/* category head */
.cat-head{padding:48px 0;border-bottom:1px solid var(--line)}
.cat-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{opacity:.5}
.cat-h1{font-size:clamp(28px,3.4vw,40px);line-height:1.24;font-weight:800;letter-spacing:-.02em;margin:0 0 16px}
.cat-lead{font-size:15.5px;color:var(--ink-2);line-height:1.85;margin:0;max-width:640px}
.badge-stack{display:flex;flex-direction:column;gap:10px}
.badge-stat{border:1px solid var(--line);background:#fff;border-radius:var(--r-md);padding:14px 18px;display:flex;flex-direction:column;gap:2px}
.badge-stat b{font-size:20px;font-weight:800;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.badge-stat span{font-size:12.5px;color:var(--muted)}
@media(max-width:900px){
  .cat-grid{grid-template-columns:1fr;gap:28px}
  .badge-stack{flex-direction:row;flex-wrap:wrap}
  .badge-stat{flex:1 1 150px}
}

/* filter bar */
.filter-bar{padding:28px 0 0}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--ink-2);transition:border-color .18s ease,background .18s ease,color .18s ease,transform .18s ease}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.chip.is-active:hover{background:var(--brand-dark);color:#fff}
.sort-group{margin-left:auto;display:flex;align-items:center;gap:4px;font-size:13.5px;color:var(--muted)}
.sort-btn{padding:6px 12px;border-radius:999px;font-size:13.5px;color:var(--muted);transition:background .18s ease,color .18s ease}
.sort-btn:hover{color:var(--brand)}
.sort-btn.is-active{background:var(--sand);color:var(--ink);font-weight:600}
.result-count{margin:20px 0 0;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.result-count::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
@media(max-width:640px){.sort-group{margin-left:0;width:100%;justify-content:flex-start}}

/* card grid */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px}
@media(max-width:1024px){.grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media(max-width:768px){.grid-cards{grid-template-columns:1fr;gap:16px}}
.card-post{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease}
.card-post:hover{transform:translateY(-2px);border-color:rgba(199,91,57,.4);box-shadow:var(--shadow-lg)}
.card-media{aspect-ratio:4/3;background:var(--paper-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.card-post:hover .card-media img{transform:scale(1.035)}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-flex;align-items:center;align-self:flex-start;font-size:12px;font-weight:600;color:var(--ink-2);background:var(--sand);border-radius:999px;padding:4px 12px;margin-bottom:12px}
.card-title{font-size:17.5px;font-weight:700;line-height:1.45;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-excerpt{font-size:13.5px;line-height:1.75;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.card-link{font-size:13px;font-weight:600;color:var(--brand);white-space:nowrap}
.card-link:hover{color:var(--brand-dark)}
.card-link .arrow{display:inline-block;transition:transform .18s ease}
.card-link:hover .arrow{transform:translateX(4px)}
.more-wrap{display:flex;justify-content:center;margin-top:40px}

/* intro split */
.intro-split{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:start}
.intro-prose p{font-size:15.5px;line-height:1.9;color:var(--ink-2);margin:0 0 16px}
.intro-prose p:last-child{margin-bottom:0}
.check-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px}
.check-icon{flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-top:2px}
.check-list strong{display:block;font-size:14.5px;font-weight:700;margin-bottom:2px}
.check-list span.txt{font-size:13px;color:var(--muted);line-height:1.7}
@media(max-width:900px){.intro-split{grid-template-columns:1fr;gap:28px}}

/* topic picks */
.topic-stack{display:flex;flex-direction:column;gap:16px}
.topic-card{display:grid;grid-template-columns:200px minmax(0,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .2s cubic-bezier(.2,.7,.3,1),border-color .2s ease,box-shadow .2s ease}
.topic-card:hover{transform:translateY(-2px);border-color:rgba(199,91,57,.4);box-shadow:var(--shadow)}
.topic-media{background:var(--paper-2);overflow:hidden}
.topic-media img{width:100%;height:100%;object-fit:cover;min-height:140px;transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.topic-card:hover .topic-media img{transform:scale(1.035)}
.topic-body{padding:22px 24px;display:flex;flex-direction:column;justify-content:center;gap:8px}
.topic-body h3{font-size:17px;font-weight:700;line-height:1.5;margin:0}
.topic-body p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0}
.topic-foot{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--muted);margin-top:2px}
.read-link{color:var(--brand);font-weight:600}
@media(max-width:640px){.topic-card{grid-template-columns:1fr}.topic-media img{min-height:170px}}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:0;overflow:hidden;transition:border-color .18s ease}
.faq-item[open]{border-color:rgba(199,91,57,.35)}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;cursor:pointer;font-size:15.5px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-plus{flex:0 0 auto;width:24px;height:24px;position:relative;transition:transform .2s cubic-bezier(.2,.7,.3,1);color:var(--brand)}
.faq-item[open] .faq-plus{transform:rotate(180deg)}
.faq-answer{padding:0 22px 20px;font-size:14px;line-height:1.85;color:var(--ink-2);border-top:1px solid var(--line);padding-top:16px;margin:0 0 0}

/* cta strip */
.cta-strip{background:var(--ink);color:#FAF6F1;padding:44px 0}
.bg-ink .section-title{color:#FAF6F1}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.35;margin:0 0 8px;color:#FAF6F1;letter-spacing:-.01em}
.cta-inner p{font-size:13.5px;color:rgba(250,246,241,.66);margin:0;line-height:1.7}

/* footer */
.site-footer{background:var(--ink);color:#FAF6F1;padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-text strong{color:#FAF6F1}
.footer-brand .brand-text em{color:rgba(250,246,241,.6)}
.footer-brand p{margin:16px 0 0;font-size:13.5px;line-height:1.8;color:rgba(250,246,241,.62);max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;margin:0 0 14px;color:#FAF6F1}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:rgba(250,246,241,.64);transition:color .18s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(250,246,241,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{margin:0;font-size:12.5px;color:rgba(250,246,241,.5)}
.brand-full{color:rgba(250,246,241,.72)}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;gap:26px}.site-footer{padding:44px 0 24px}}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}