/* roulang page: index */
:root{
  --brand:#1F4E79;--brand-dark:#163A5A;--brand-light:#E9F0F7;
  --accent:#D9773F;--accent-dark:#C0652F;--accent-light:#FBF0E8;
  --bg:#F7F9FB;--card:#FFFFFF;--line:#E4EAF1;
  --text:#16232F;--muted:#5C6C7C;--weak:#8A97A3;
  --safe:#2F7A6A;--safe-light:#E9F4F1;--warn:#B4552F;
  --r-lg:16px;--r-sm:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,47,.06);
  --sh-2:0 14px 30px -14px rgba(22,35,47,.22);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
.page-body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:1rem;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;text-underline-offset:4px}
a:hover{color:var(--brand-dark)}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
@media (min-width:1280px){.wrap{padding:0 40px}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(6px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:12px;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-main{font-size:1.0625rem;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-divider{width:1px;height:16px;background:var(--line)}
.logo-sub{font-size:.75rem;color:var(--muted);letter-spacing:.06em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:.9375rem;font-weight:500;
  color:var(--muted);transition:color 180ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:1px;background:var(--brand);
  transition:left 200ms ease,right 200ms ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{left:0;right:0;height:2px}
.header-right{display:flex;align-items:center;gap:14px}
.city-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:#fff;font-size:.8125rem;color:var(--muted);cursor:pointer;
  transition:border-color 180ms ease,color 180ms ease;
}
.city-pill:hover{border-color:var(--brand);color:var(--brand)}
.city-dot{width:6px;height:6px;border-radius:50%;background:var(--safe);display:inline-block}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--brand);transition:transform 220ms ease,opacity 220ms ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}
.mobile-nav{display:none}
.mobile-nav.open{
  display:block;position:fixed;inset:72px 0 0 0;background:#fff;z-index:55;
  padding:8px 20px 40px;overflow-y:auto;animation:slideDown 220ms ease;
}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.mobile-nav a{
  display:block;padding:18px 4px;border-bottom:1px solid var(--line);
  color:var(--text);font-size:1rem;font-weight:500;
}
.mobile-nav a.active{color:var(--brand)}
@media (max-width:1023px){
  .main-nav{display:none}
  .city-pill{display:none}
  .nav-toggle{display:flex}
  .logo-sub{display:none}
  .logo-divider{display:none}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:.9375rem;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all 180ms ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.btn-sm{padding:9px 16px;font-size:.875rem}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:.875rem;font-weight:600}
.link-arrow span.ar{transition:transform 180ms ease;font-size:.8rem}
.link-arrow:hover span.ar{transform:translateX(3px)}

/* 徽章与标签 */
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.8125rem;font-weight:600;
}
.pill-accent{background:var(--accent-light);color:var(--accent-dark)}
.pill-safe{background:var(--safe-light);color:var(--safe)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.75rem;font-weight:500;
}
.tag-line{border:1px solid var(--line);background:#fff;color:var(--muted)}

/* 板块 */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-soft{background:var(--brand-light)}
.section-deep{background:var(--brand-dark);color:#fff}
.section-deep h2,.section-deep h3{color:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.6rem,2.4vw,2.1rem);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:1rem;max-width:68ch}
.section-deep .section-head p{color:rgba(255,255,255,.78)}
.eyebrow{font-size:.8125rem;letter-spacing:.12em;color:var(--accent-dark);font-weight:600;margin-bottom:12px;text-transform:uppercase}
@media (max-width:767px){.section{padding:56px 0}.section-head{margin-bottom:28px}}

/* Hero */
.hero{
  position:relative;padding:76px 0 84px;overflow:hidden;
  background:linear-gradient(180deg,#F4F8FC 0%,#F7F9FB 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/f934a5d1ce27c394.webp');
  background-size:cover;background-position:center;opacity:.10;
}
.hero .wrap{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(2.2rem,4vw,3.4rem);line-height:1.2;margin:18px 0 18px}
.hero-lead{font-size:1.125rem;font-weight:600;color:var(--brand-dark);margin-bottom:14px}
.hero-text{color:var(--muted);max-width:60ch;font-size:.9688rem}
.hero-points{margin:22px 0 26px;display:grid;gap:10px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:.9375rem;color:var(--text)}
.hero-points li::before{
  content:"";flex:none;width:16px;height:16px;margin-top:5px;border-radius:50%;
  background:var(--brand-light);border:1px solid rgba(31,78,121,.3);position:relative;
}
.hero-points li::before{box-shadow:inset 0 0 0 3px #fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-media{position:relative}
.hero-frame{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:#EEF2F6;box-shadow:var(--sh-2);aspect-ratio:4/5;
}
.hero-frame img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:rgba(255,255,255,.94);
  border:1px solid var(--line);border-radius:14px;padding:14px 18px;box-shadow:var(--sh-2);
  backdrop-filter:blur(4px);
}
.hero-float .num{font-size:1.5rem;font-weight:700;color:var(--brand);line-height:1.2}
.hero-float .lab{font-size:.75rem;color:var(--weak)}
.hero-float .split{display:flex;gap:22px}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-media{max-width:440px}
  .hero-float{left:auto;right:12px;bottom:12px}
}

/* 指标看板 */
.metrics{display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.metric{padding:26px 20px;border-left:1px solid var(--line)}
.metric:first-child{border-left:none}
.metric .num{font-size:2.5rem;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-.02em}
.metric .num small{font-size:1rem;font-weight:600;color:var(--muted);margin-left:2px}
.metric .lab{margin-top:8px;font-size:.8125rem;color:var(--muted)}
@media (max-width:1023px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{border-left:none;border-top:1px solid var(--line)}
  .metric:nth-child(odd){border-right:1px solid var(--line)}
  .metric:nth-child(-n+2){border-top:none}
  .metric:last-child{grid-column:span 2;border-right:none}
}
@media (max-width:639px){
  .metric .num{font-size:1.9rem}
}

/* 服务矩阵 */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);transition:all 180ms ease;display:flex;flex-direction:column;gap:10px;
}
.service-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,78,121,.4)}
.service-card.featured{grid-row:span 2;background:linear-gradient(180deg,#FFFFFF 0%,#F5F9FD 100%)}
.service-icon{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-weight:700;font-size:.9rem;
}
.service-card h3{font-size:1.25rem}
.service-card p{color:var(--muted);font-size:.9375rem}
.service-card .link-arrow{margin-top:auto;padding-top:6px}
@media (max-width:1023px){.service-grid{grid-template-columns:repeat(2,1fr)}.service-card.featured{grid-row:auto;grid-column:span 2}}
@media (max-width:639px){.service-grid{grid-template-columns:1fr}.service-card.featured{grid-column:auto}}

/* 能力进度 */
.progress-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.progress-col{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1)}
.progress-col h3{font-size:1.0625rem;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.progress-col .hint{font-size:.8125rem;color:var(--weak);margin-bottom:14px}
.progress-col li{
  display:flex;gap:10px;padding:11px 0;border-top:1px solid var(--line);
  font-size:.9375rem;color:var(--muted);
}
.progress-col li:first-of-type{border-top:none}
.progress-col li i{flex:none;font-style:normal;color:var(--brand);font-weight:700;font-size:.8125rem;margin-top:4px}
.changelog{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 24px;box-shadow:var(--sh-1)}
.changelog li{display:flex;gap:18px;padding:16px 0;border-top:1px solid var(--line);font-size:.9375rem;color:var(--muted)}
.changelog li:first-child{border-top:none}
.changelog time{flex:none;width:78px;color:var(--weak);font-size:.8125rem}
@media (max-width:1023px){.progress-grid{grid-template-columns:1fr}}
@media (max-width:639px){.changelog{padding:4px 16px}.changelog li{flex-direction:column;gap:4px}.changelog time{width:auto}}

/* 对比 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.compare-col{border-radius:var(--r-lg);padding:28px 26px;border:1px solid var(--line)}
.compare-col.left{background:#EFF3F7}
.compare-col.right{background:#fff;border-color:rgba(31,78,121,.35);box-shadow:var(--sh-2);position:relative}
.compare-col .col-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.compare-col h3{font-size:1.125rem}
.compare-col li{display:flex;gap:10px;padding:13px 0;border-top:1px solid rgba(22,35,47,.08);font-size:.9375rem;color:var(--muted)}
.compare-col li:first-of-type{border-top:none}
.mark{flex:none;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;margin-top:4px}
.mark.no{background:#E3E8ED;color:var(--weak)}
.mark.yes{background:var(--safe-light);color:var(--safe)}
@media (max-width:767px){.compare{grid-template-columns:1fr}}

/* 里程碑 */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
.timeline::before{content:"";position:absolute;top:7px;left:0;right:0;height:1px;background:var(--line)}
.tl-node{position:relative;padding-top:28px}
.tl-dot{position:absolute;top:0;left:0;width:15px;height:15px;border-radius:50%;background:var(--brand);border:3px solid #fff;box-shadow:0 0 0 1px var(--line)}
.tl-node.now .tl-dot{background:var(--accent)}
.tl-node time{display:block;font-size:.8125rem;color:var(--weak);margin-bottom:6px}
.tl-node h3{font-size:1rem;margin-bottom:6px}
.tl-node p{font-size:.875rem;color:var(--muted)}
@media (max-width:767px){
  .timeline{grid-template-columns:1fr;gap:0}
  .timeline::before{top:0;bottom:0;left:7px;right:auto;width:1px;height:auto}
  .tl-node{padding:0 0 26px 30px}
  .tl-dot{top:4px}
}

/* 区域覆盖 */
.areas{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.city-cloud{display:flex;flex-wrap:wrap;gap:10px}
.city-chip{
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:.875rem;color:var(--muted);transition:all 180ms ease;cursor:default;
}
.city-chip:hover{background:var(--brand-light);color:var(--brand);border-color:rgba(31,78,121,.35)}
.area-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:#EEF2F6;aspect-ratio:16/10}
.area-media img{width:100%;height:100%;object-fit:cover}
.area-notes{margin-top:18px;display:grid;gap:10px}
.area-notes li{display:flex;gap:10px;font-size:.9375rem;color:var(--muted);padding-top:10px;border-top:1px solid var(--line)}
.area-notes li:first-child{border-top:none;padding-top:0}
.area-notes b{color:var(--text);font-weight:600}
@media (max-width:1023px){.areas{grid-template-columns:1fr;gap:28px}}

/* 场景专题 */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:all 180ms ease}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,78,121,.4)}
.scene-thumb{aspect-ratio:16/9;background:#EEF2F6;overflow:hidden}
.scene-thumb img{width:100%;height:100%;object-fit:cover}
.scene-body{padding:18px 20px 22px}
.scene-body h3{font-size:1.0625rem;margin-bottom:6px}
.scene-body p{font-size:.875rem;color:var(--muted)}
@media (max-width:1023px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.scene-grid{grid-template-columns:1fr}}

/* 档案卡 */
.people-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.person-card{
  display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);transition:all 180ms ease;
}
.person-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,78,121,.4)}
.avatar{width:64px;height:64px;border-radius:50%;overflow:hidden;background:#EEF2F6;flex:none;border:1px solid var(--line)}
.avatar img{width:100%;height:100%;object-fit:cover}
.person-body{min-width:0;flex:1}
.person-body h3{font-size:1.0625rem;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.person-tags{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.person-meta{font-size:.8125rem;color:var(--weak)}
.person-body .btn{margin-top:12px}
@media (max-width:1023px){.people-grid{grid-template-columns:1fr}}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow::before{
  content:"";position:absolute;top:26px;left:8%;right:8%;height:1px;
  background-image:linear-gradient(90deg,rgba(31,78,121,.35) 0 6px,transparent 6px 12px);
  background-size:12px 1px;
}
.flow-step{position:relative;text-align:left}
.flow-num{
  width:52px;height:52px;border-radius:50%;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:1.375rem;font-weight:700;
  position:relative;z-index:2;margin-bottom:16px;
}
.flow-step h3{font-size:1.0625rem;margin-bottom:8px}
.flow-step p{font-size:.875rem;color:var(--muted)}
@media (max-width:1023px){.flow{grid-template-columns:repeat(2,1fr)}.flow::before{display:none}}
@media (max-width:639px){.flow{grid-template-columns:1fr}}

/* 套餐 */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:start}
.plan{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);transition:all 180ms ease}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.plan.hot{border-color:rgba(217,119,63,.55);box-shadow:var(--sh-2);transform:scale(1.02)}
.plan h3{font-size:1.0625rem;display:flex;align-items:center;justify-content:space-between;gap:8px}
.plan .price{font-size:2.1rem;font-weight:700;color:var(--brand);margin:14px 0 4px;letter-spacing:-.02em}
.plan .price small{font-size:.8125rem;color:var(--weak);font-weight:500;margin-left:4px}
.plan ul{margin:16px 0 20px}
.plan li{font-size:.875rem;color:var(--muted);padding:9px 0;border-top:1px solid var(--line)}
.plan li:first-child{border-top:none}
@media (max-width:1023px){.plans{grid-template-columns:repeat(2,1fr)}.plan.hot{transform:none}}
@media (max-width:639px){.plans{grid-template-columns:1fr}}

/* 资讯 */
.news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start}
.news-lead{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:all 180ms ease}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-thumb{aspect-ratio:16/9;background:#EEF2F6;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-lead-body{padding:22px 24px 26px}
.news-lead-body h3{font-size:1.25rem;margin:10px 0 10px;line-height:1.4}
.news-lead-body p{font-size:.9375rem;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:.8125rem;color:var(--weak)}
.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.news-item{display:block;padding:16px 22px;border-top:1px solid var(--line);transition:background 180ms ease}
.news-item:first-child{border-top:none}
.news-item:hover{background:#F7F9FB}
.news-item .time{font-size:.75rem;color:var(--weak);display:block;margin-bottom:4px}
.news-item .ttl{font-size:.9375rem;color:var(--text);font-weight:500;line-height:1.55}
.news-item:hover .ttl{color:var(--brand)}
.news-foot{grid-column:1/-1;margin-top:22px}
.empty-box{
  border:1px dashed #C9D5E2;border-radius:var(--r-lg);padding:46px 24px;text-align:center;background:#fff;
}
.empty-box .en{font-size:1rem;font-weight:600;color:var(--brand);margin-bottom:6px}
.empty-box .cn{font-size:.875rem;color:var(--muted)}
@media (max-width:1023px){.news-layout{grid-template-columns:1fr}}

/* 话题榜 */
.topic-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.topic-list li{display:flex;align-items:flex-start;gap:16px;padding:16px 0;border-top:1px solid var(--line)}
.topic-list li:first-child{border-top:none}
.topic-idx{font-size:1.375rem;font-weight:700;color:#D5DFEA;line-height:1.2;width:34px;flex:none}
.topic-list li:hover .topic-idx{color:var(--brand)}
.topic-title{font-size:1rem;color:var(--text);font-weight:500}
.topic-sub{font-size:.8125rem;color:var(--weak);margin-top:2px}
.topic-feature{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-2)}
.topic-feature h3{font-size:1.125rem;margin:12px 0 10px}
.topic-feature p{font-size:.9375rem;color:var(--muted)}
.topic-feature .stat-row{display:flex;gap:26px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.topic-feature .stat-row b{display:block;font-size:1.25rem;color:var(--brand)}
.topic-feature .stat-row span{font-size:.75rem;color:var(--weak)}
@media (max-width:1023px){.topic-layout{grid-template-columns:1fr}}

/* 保障 */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.guard-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 22px 24px;position:relative;padding-top:26px}
.guard-card::before{content:"";position:absolute;top:0;left:22px;width:32px;height:2px;background:var(--brand)}
.guard-card h3{font-size:1rem;margin-bottom:6px}
.guard-card p{font-size:.875rem;color:var(--muted)}
.guard-icon{width:34px;height:34px;border-radius:10px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:.8125rem;font-weight:700;margin-bottom:12px}
.safety-box{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px}
.safety-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px 32px;margin-top:14px}
.safety-cols li{display:flex;gap:10px;font-size:.9375rem;color:var(--muted);padding:8px 0}
.safety-cols li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--safe);margin-top:11px}
@media (max-width:1023px){.guard-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.guard-grid{grid-template-columns:1fr}.safety-cols{grid-template-columns:1fr}}

/* 评价墙 */
.review-wall{columns:3;column-gap:18px}
.review-card{
  break-inside:avoid;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;margin-bottom:18px;box-shadow:var(--sh-1);transition:all 180ms ease;
}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-head .avatar{width:40px;height:40px}
.review-head b{font-size:.9375rem;font-weight:600;display:block}
.review-head span{font-size:.75rem;color:var(--weak)}
.stars{color:var(--accent);font-size:.8125rem;letter-spacing:2px;margin-bottom:8px}
.review-card p{font-size:.9375rem;color:var(--muted)}
.review-foot{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
@media (max-width:1023px){.review-wall{columns:2}}
@media (max-width:639px){.review-wall{columns:1}}

/* 快速解答 */
.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.quick-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:all 180ms ease}
.quick-card:hover{border-color:rgba(31,78,121,.4);box-shadow:var(--sh-1)}
.quick-card h3{font-size:.9375rem;margin-bottom:6px;color:var(--brand-dark)}
.quick-card p{font-size:.875rem;color:var(--muted)}
@media (max-width:767px){.quick-grid{grid-template-columns:1fr}}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color 180ms ease}
.faq-item[open]{border-color:rgba(31,78,121,.35);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;min-height:64px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;font-size:1rem;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.25rem;color:var(--brand);font-weight:400;transition:transform 200ms ease}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:focus-visible{outline:3px solid var(--brand-light);outline-offset:-3px}
.faq-body{padding:0 22px 20px;border-top:1px solid var(--line);margin-top:0;padding-top:16px;font-size:.9375rem;color:var(--muted)}

/* 表单 */
.form-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-2)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.8125rem;color:var(--muted);margin-bottom:6px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--text);font-size:.9375rem;font-family:inherit;
  transition:border-color 160ms ease,box-shadow 160ms ease;appearance:none;
}
.field textarea{height:auto;padding:12px 14px;min-height:96px;resize:vertical;line-height:1.6}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235C6C7C' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:36px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--warn);box-shadow:0 0 0 3px rgba(180,85,47,.1)}
.field .err-tip{display:none;font-size:.75rem;color:var(--warn);margin-top:5px}
.field.error .err-tip{display:block}
.form-note{margin-top:14px;font-size:.75rem;color:var(--weak);line-height:1.6}
.form-alert{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-sm);
  background:var(--safe-light);border:1px solid rgba(47,122,106,.35);color:var(--safe);font-size:.875rem;
}
.form-alert.show{display:block}
.subscribe-box{margin-top:24px;border:1px dashed #C9D5E2;border-radius:14px;padding:18px 20px;background:#fff}
.subscribe-box h3{font-size:1rem;margin-bottom:6px}
.subscribe-box p{font-size:.875rem;color:var(--muted);margin-bottom:0}
.form-side-points{margin-top:24px;display:grid;gap:10px}
.form-side-points li{font-size:.9375rem;color:var(--muted);display:flex;gap:10px}
.form-side-points li::before{content:"·";color:var(--accent);font-weight:700}
@media (max-width:1023px){.form-layout{grid-template-columns:1fr;gap:28px}}
@media (max-width:639px){.form-card{padding:22px}}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px}
.footer-brand .logo-main{font-size:1rem}
.footer-brand p{font-size:.875rem;color:var(--muted);margin-top:14px;max-width:34ch}
.footer-col h4{font-size:.8125rem;letter-spacing:.08em;color:var(--weak);font-weight:600;margin-bottom:14px}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:.875rem;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-col .plain{font-size:.875rem;color:var(--muted)}
.footer-areas{display:flex;flex-wrap:wrap;gap:8px}
.footer-areas .plain{padding:3px 10px;border:1px solid var(--line);border-radius:var(--r-pill);font-size:.75rem}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center}
.footer-bottom p{font-size:.75rem;color:var(--weak);margin:0}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;padding-bottom:28px}}

/* roulang page: category1 */
:root{
  --brand:#1F4E79;--brand-dark:#163A5A;--brand-light:#E9F0F7;
  --accent:#D9773F;--accent-dark:#C0652F;--accent-light:#FBF0E8;
  --bg:#F7F9FB;--card:#FFFFFF;--line:#E4EAF1;
  --text:#16232F;--muted:#5C6C7C;--weak:#8A97A3;
  --safe:#2F7A6A;--safe-light:#E9F4F1;--warn:#B4552F;
  --r-lg:16px;--r-sm:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,47,.06);
  --sh-2:0 14px 30px -14px rgba(22,35,47,.22);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:1rem;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;text-underline-offset:4px;transition:color 180ms ease}
a:hover{color:var(--brand-dark)}
button{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(2.1rem,4vw,3rem);line-height:1.2;letter-spacing:-.01em;font-weight:700}
h2{font-size:clamp(1.6rem,2.4vw,2.1rem);line-height:1.3;font-weight:700}
h3{font-size:1.25rem;line-height:1.4;font-weight:700}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
:focus-visible{outline:3px solid rgba(31,78,121,.28);outline-offset:2px;border-radius:6px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(6px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:12px;color:var(--text);min-width:0}
.logo:hover{color:var(--text)}
.logo-main{font-size:1.0625rem;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-divider{display:none;width:1px;height:16px;background:var(--line);flex:0 0 1px}
.logo-sub{display:none;font-size:.75rem;color:var(--muted);letter-spacing:.06em;white-space:nowrap}
@media (min-width:768px){.logo-divider{display:block}.logo-sub{display:block}}
.main-nav{display:none;align-items:center;gap:28px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:.9375rem;font-weight:500;
  color:var(--muted);white-space:nowrap;transition:color 180ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:1px;background:var(--brand);
  transition:left 200ms ease,right 200ms ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{left:0;right:0;height:2px}
.header-right{display:flex;align-items:center;gap:12px}
.city-pill{
  display:none;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:#fff;font-size:.8125rem;color:var(--muted);cursor:pointer;
  transition:border-color 180ms ease,color 180ms ease;
}
.city-pill:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle{
  display:flex;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--brand);transition:transform 220ms ease,opacity 220ms ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}
.mobile-nav{display:none}
.mobile-nav.open{
  display:block;position:fixed;inset:72px 0 0 0;background:#fff;z-index:70;
  padding:8px 20px 40px;overflow-y:auto;animation:slideDown 220ms ease;
}
.mobile-nav a{display:block;padding:18px 4px;border-bottom:1px solid var(--line);color:var(--text);font-size:1rem;font-weight:500}
.mobile-nav a.active{color:var(--brand)}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@media (min-width:1024px){
  .main-nav{display:flex}
  .city-pill{display:inline-flex}
  .nav-toggle{display:none}
  .mobile-nav.open{display:none}
}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:.9375rem;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all 180ms ease;text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:.875rem}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:.875rem;font-weight:600}
.link-arrow .ar{transition:transform 180ms ease;font-size:.8rem}
.link-arrow:hover .ar{transform:translateX(3px)}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.8125rem;font-weight:600;
}
.pill-accent{background:var(--accent-light);color:var(--accent-dark)}
.pill-safe{background:var(--safe-light);color:var(--safe)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.75rem;font-weight:500;
}
.tag-line{border:1px solid var(--line);background:#fff;color:var(--muted)}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:80px 0}}
.section-alt{background:#fff}
.section-soft{background:var(--brand-light)}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);max-width:68ch;font-size:.9688rem}
.eyebrow{font-size:.8125rem;letter-spacing:.12em;color:var(--accent-dark);font-weight:600;margin-bottom:10px}

/* ---------- 面包屑 + 窄幅页头 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--weak);padding-top:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--line)}
.crumbs .cur{color:var(--weak)}
.page-head{padding:14px 0 44px;background:#fff;border-bottom:1px solid var(--line)}
.page-head-grid{display:grid;gap:28px;align-items:start;margin-top:18px}
@media (min-width:900px){.page-head-grid{grid-template-columns:1.5fr .5fr;gap:48px}}
.page-head h1{margin-bottom:14px}
.page-head .lead{color:var(--muted);max-width:62ch;font-size:.9688rem}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.head-stats{display:grid;gap:0;margin-top:6px}
.head-stat{display:flex;align-items:baseline;gap:10px;padding:12px 0;border-top:1px solid var(--line)}
.head-stat:last-child{border-bottom:1px solid var(--line)}
.head-stat .num{font-size:1.5rem;font-weight:700;color:var(--brand);line-height:1.2}
.head-stat .lbl{font-size:.8125rem;color:var(--muted)}

/* ---------- 筛选条 ---------- */
.filter-bar{
  position:sticky;top:72px;z-index:50;background:#fff;border-bottom:1px solid var(--line);
  padding:12px 0;
}
.filter-inner{display:flex;flex-wrap:wrap;align-items:center;gap:10px;justify-content:space-between}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.chip-label{font-size:.75rem;color:var(--weak);margin-right:2px}
.chip{
  border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;font-size:.8125rem;
  background:#fff;color:var(--muted);cursor:pointer;transition:all 180ms ease;white-space:nowrap;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.active{background:var(--brand-light);color:var(--brand);border-color:var(--brand-light);font-weight:600}
.sort-wrap{display:flex;align-items:center;gap:8px}
.sort-wrap label{font-size:.75rem;color:var(--weak)}
.select{
  appearance:none;-webkit-appearance:none;height:38px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' fill='none' stroke='%235C6C7C' stroke-width='1.5'/></svg>") no-repeat right 12px center;
  padding:0 34px 0 12px;font-size:.8125rem;color:var(--muted);cursor:pointer;
}
.select:hover{border-color:var(--brand)}

/* ---------- 列表主体 ---------- */
.listing{display:grid;gap:32px}
@media (min-width:1024px){.listing{grid-template-columns:248px minmax(0,1fr);gap:40px}}
.filter-side{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 20px;box-shadow:var(--sh-1)}
@media (min-width:1024px){.filter-side{position:sticky;top:150px;align-self:start}}
.filter-side h3{font-size:.9375rem;margin-bottom:16px}
.filter-group{padding:14px 0;border-top:1px solid var(--line)}
.filter-group:first-of-type{border-top:0;padding-top:0}
.filter-group .gt{font-size:.75rem;letter-spacing:.08em;color:var(--weak);margin-bottom:10px}
.check{display:flex;align-items:center;gap:8px;font-size:.875rem;color:var(--muted);padding:5px 0;cursor:pointer}
.check input{width:15px;height:15px;accent-color:var(--brand)}
.filter-tip{margin-top:16px;padding:12px 14px;border-radius:var(--r-sm);background:var(--safe-light);color:var(--safe);font-size:.8125rem;line-height:1.6}

.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.listing-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.listing-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,78,121,.4)}
.card-media{aspect-ratio:4/3;background:#EEF2F6;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease}
.listing-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:1rem;line-height:1.45}
.card-body p{font-size:.875rem;color:var(--muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag-row{display:flex;flex-wrap:wrap;gap:6px}
.card-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:.75rem;color:var(--weak);padding-top:10px;border-top:1px solid var(--line);margin-top:auto}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px}
.center-cta{display:flex;justify-content:center;margin-top:32px}

/* ---------- 区域价位 ---------- */
.area-rows{display:grid;gap:14px}
.area-row{
  display:grid;gap:12px;padding:18px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);transition:border-color 180ms ease,box-shadow 180ms ease;
}
.area-row:hover{border-color:rgba(31,78,121,.35);box-shadow:var(--sh-1)}
@media (min-width:820px){.area-row{grid-template-columns:170px 210px minmax(0,1fr) 140px;align-items:center;gap:18px}}
.area-row .aname{font-weight:700;font-size:1rem;color:var(--text)}
.area-row .atime{font-size:.8125rem;color:var(--muted)}
.area-row .atags{display:flex;flex-wrap:wrap;gap:6px}
.area-row .aprice{font-size:.875rem;color:var(--brand);font-weight:600}
@media (min-width:820px){.area-row .aprice{text-align:right}}

/* ---------- 流程 ---------- */
.steps{display:grid;gap:20px;grid-template-columns:1fr;counter-reset:st}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px}
.step .n{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-weight:700;font-size:1rem;margin-bottom:12px;
}
.step h3{font-size:.9688rem;margin-bottom:6px}
.step p{font-size:.8125rem;color:var(--muted);line-height:1.65}
.safety-notes{display:grid;gap:14px;margin-top:28px}
@media (min-width:768px){.safety-notes{grid-template-columns:repeat(2,minmax(0,1fr))}}
.note{display:flex;gap:12px;padding:16px 18px;border-radius:var(--r-lg);background:var(--safe-light);border:1px solid rgba(47,122,106,.18)}
.note .dot{width:8px;height:8px;border-radius:999px;background:var(--safe);flex:0 0 8px;margin-top:9px}
.note p{font-size:.875rem;color:#245c50;line-height:1.7}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:1rem;font-weight:600;color:var(--text);transition:background 180ms ease;
}
.faq-q:hover{background:#F7F9FB}
.faq-icon{flex:0 0 22px;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);color:var(--brand);font-size:.9rem;transition:transform 220ms ease}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:.9375rem;line-height:1.75;max-width:70ch}

/* ---------- 资讯列表 ---------- */
.news-list{display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.news-item{border-bottom:1px solid var(--line)}
.news-item:last-child{border-bottom:0}
.news-item a{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:18px 22px;color:var(--text);transition:background 180ms ease}
.news-item a:hover{background:#F7F9FB;color:var(--text)}
.news-item .ntime{font-size:.75rem;color:var(--weak);flex:0 0 auto;min-width:92px}
.news-item .ntitle{font-size:.9688rem;font-weight:600;flex:1 1 220px;line-height:1.5}
.news-item .ncat{font-size:.75rem;color:var(--brand);background:var(--brand-light);padding:3px 10px;border-radius:var(--r-pill)}
.news-empty{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;
  padding:44px 24px;text-align:center;color:var(--muted);font-size:.9375rem;
}
.news-empty .btn{margin-top:16px}

/* ---------- 转化条 ---------- */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 26px;display:grid;gap:20px;align-items:center;box-shadow:var(--sh-1);
}
@media (min-width:860px){.cta-band{grid-template-columns:1fr auto;padding:36px 40px}}
.cta-band h2{font-size:clamp(1.35rem,2.2vw,1.75rem);margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:.9375rem;max-width:60ch}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-brand .logo-main{font-size:1rem}
.footer-brand p{color:var(--muted);font-size:.875rem;margin-top:12px;max-width:36ch;line-height:1.7}
.footer-col h4{font-size:.875rem;font-weight:700;margin-bottom:14px;color:var(--text)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:.875rem}
.footer-col a:hover{color:var(--brand)}
.footer-col .plain{color:var(--muted);font-size:.875rem}
.footer-areas{display:flex;flex-wrap:wrap;gap:8px}
.footer-areas .plain{border:1px solid var(--line);border-radius:var(--r-pill);padding:3px 10px;font-size:.8125rem}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:36px;padding-top:18px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:.8125rem;color:var(--weak);
}
.footer-bottom p{max-width:100%}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#1F4E79;--brand-dark:#163A5A;--brand-light:#E9F0F7;
  --accent:#D9773F;--accent-dark:#C0652F;--accent-light:#FBF0E8;
  --bg:#F7F9FB;--card:#FFFFFF;--line:#E4EAF1;
  --text:#16232F;--muted:#5C6C7C;--weak:#8A97A3;
  --safe:#2F7A6A;--safe-light:#E9F4F1;--warn:#B4552F;
  --r-lg:16px;--r-sm:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,47,.06);
  --sh-2:0 14px 30px -14px rgba(22,35,47,.22);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.page-body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:1rem;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;text-underline-offset:4px}
a:hover{color:var(--brand-dark)}
button{font:inherit}
:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px;width:100%}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(6px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:12px;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-main{font-size:1.0625rem;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-divider{width:1px;height:16px;background:var(--line)}
.logo-sub{font-size:.75rem;color:var(--muted);letter-spacing:.06em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:.9375rem;font-weight:500;
  color:var(--muted);transition:color 180ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:1px;background:var(--brand);
  transition:left 200ms ease,right 200ms ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{left:0;right:0;height:2px}
.header-right{display:flex;align-items:center;gap:14px}
.city-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:#fff;font-size:.8125rem;color:var(--muted);cursor:pointer;
  transition:border-color 180ms ease,color 180ms ease;
}
.city-pill:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--brand);transition:transform 220ms ease,opacity 220ms ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}
.mobile-nav{display:none}
.mobile-nav.open{
  display:block;position:fixed;inset:72px 0 0 0;background:#fff;z-index:55;
  padding:8px 20px 40px;overflow-y:auto;animation:slideDown 220ms ease;
}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.mobile-nav a{display:block;padding:18px 4px;border-bottom:1px solid var(--line);color:var(--text);font-size:1rem;font-weight:500}
.mobile-nav a.active{color:var(--brand)}
.mobile-nav .m-cta{margin-top:24px}
.mobile-nav .m-cta a{border-bottom:0;padding:0}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:.9375rem;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all 180ms ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:.875rem}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:.875rem;font-weight:600}
.link-arrow .ar{transition:transform 180ms ease;font-size:.8rem}
.link-arrow:hover .ar{transform:translateX(3px)}
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand);font-size:.8125rem;font-weight:600}
.tag{display:inline-block;padding:3px 10px;border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand);font-size:.75rem;font-weight:500}

/* ============ 面包屑 ============ */
.crumb-bar{padding:16px 0;background:#fff;border-bottom:1px solid var(--line)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--weak);margin:0}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#C3CEDA}
.crumbs .current{color:var(--weak);max-width:100%}

/* ============ 文章头 ============ */
.art-head{position:relative;background:linear-gradient(180deg,#F4F8FC 0%,#F7F9FB 100%);padding:44px 0 0;overflow:hidden}
.art-head::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/f934a5d1ce27c394.webp');
  background-size:cover;background-position:center;opacity:.08;
}
.art-head .wrap{position:relative;z-index:2}
.art-head-inner{max-width:820px}
.art-head h1{font-size:clamp(1.9rem,3.4vw,2.6rem);line-height:1.28;letter-spacing:-.01em;margin:16px 0 18px;font-weight:700}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.8125rem;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C3CEDA}
.art-cover{position:relative;z-index:2;margin-top:34px}
.art-cover img{
  width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-1);background:#EEF2F6;
}
@media (max-width:767px){.art-cover img{aspect-ratio:16/10}}

/* ============ 正文布局 ============ */
.section{padding:88px 0}
.section-alt{background:#fff}
.art-main{padding:56px 0 72px}
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.art-col{min-width:0}

.pull-quote{
  margin:0 0 32px;padding:4px 0 4px 20px;border-left:3px solid var(--accent);
  font-size:clamp(1.0625rem,1.8vw,1.25rem);line-height:1.75;color:var(--brand-dark);font-weight:600;
}

.key-card{
  background:var(--brand-light);border-radius:var(--r-lg);padding:24px 26px;
  border-left:3px solid var(--brand);margin-bottom:36px;
}
.key-card h2{font-size:1.0625rem;margin:0 0 14px;color:var(--brand-dark);line-height:1.5}
.key-card ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.key-card li{position:relative;padding-left:18px;font-size:.9375rem;line-height:1.72;color:#22384D}
.key-card li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--brand)}

.article-body{max-width:760px;font-size:1rem;line-height:1.8;color:var(--text);word-break:break-word}
.article-body h2{font-size:1.5rem;line-height:1.45;margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.article-body h3{font-size:1.1875rem;line-height:1.5;margin:28px 0 12px}
.article-body h4{font-size:1.0625rem;margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:1.3rem}
.article-body li{margin-bottom:8px}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:#F2F6FA;border-left:3px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:22px 0 10px;width:100%;object-fit:cover;background:#EEF2F6}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:.8125rem;color:var(--weak);text-align:center}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(31,78,121,.35)}
.article-body a:hover{color:var(--brand-dark);text-decoration-color:var(--brand)}
.article-body table{width:100%;border-collapse:collapse;font-size:.9375rem;margin:22px 0}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:#F4F8FC;color:var(--brand-dark);font-weight:600}
.article-body code{background:#F2F6FA;padding:2px 6px;border-radius:6px;font-size:.9em}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.tag-row{margin-top:32px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px}

.empty-state{
  border:1px dashed #C9D6E3;border-radius:var(--r-lg);background:#fff;
  padding:44px 24px;text-align:center;max-width:760px;
}
.empty-state p{margin:0 0 8px;font-size:1.0625rem;font-weight:600;color:var(--text)}
.empty-state .empty-sub{font-size:.9375rem;font-weight:400;color:var(--muted);margin-bottom:20px;line-height:1.75}

/* 侧栏 */
.art-aside{position:sticky;top:92px}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.aside-title{font-size:1rem;margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);line-height:1.5}
.hot-list{list-style:none;margin:0;padding:0}
.hot-list li{border-bottom:1px solid var(--line)}
.hot-list li:last-child{border-bottom:0}
.hot-list a{display:block;padding:12px 0;font-size:.9375rem;line-height:1.6;color:var(--text)}
.hot-list a:hover{color:var(--brand)}
.hot-list .num{display:inline-block;min-width:18px;color:var(--accent);font-weight:700;margin-right:6px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud .tag{cursor:default;transition:background 180ms ease,color 180ms ease}
.tag-cloud .tag:hover{background:#DCE8F3}
.aside-cta p{font-size:.875rem;color:var(--muted);margin:0 0 16px;line-height:1.7}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,78,121,.4)}
.rel-thumb{display:block;background:#EEF2F6}
.rel-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rel-body{padding:18px 20px 20px}
.rel-body h3{font-size:1rem;line-height:1.55;margin:0 0 10px;font-weight:600}
.rel-body h3 a{color:var(--text)}
.rel-body h3 a:hover{color:var(--brand)}
.rel-meta{font-size:.75rem;color:var(--weak);display:flex;gap:10px;flex-wrap:wrap}

/* 上一篇 / 下一篇 */
.pn-section{background:var(--bg)}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px;transition:border-color 180ms ease,box-shadow 180ms ease}
.pn-card:hover{border-color:rgba(31,78,121,.4);box-shadow:var(--sh-1)}
.pn-card .pn-label{font-size:.75rem;letter-spacing:.08em;color:var(--weak)}
.pn-card a{display:block;margin-top:8px;font-size:.9375rem;font-weight:600;color:var(--text);line-height:1.6}
.pn-card a:hover{color:var(--brand)}
.pn-card.next{text-align:right}
.pn-empty{border:1px dashed #C9D6E3;border-radius:var(--r-lg);background:#fff;padding:26px 24px;font-size:.9375rem;color:var(--muted);text-align:center}

/* 收口 */
.art-cta{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 28px;box-shadow:var(--sh-1);
}
.art-cta h2{font-size:1.125rem;margin:0 0 6px;line-height:1.5}
.art-cta p{margin:0;font-size:.9375rem;color:var(--muted)}
.art-cta .cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo-main{font-size:1rem;margin-bottom:12px}
.footer-brand p{font-size:.875rem;color:var(--muted);line-height:1.8;margin:0;max-width:36ch}
.footer-col h4{font-size:.875rem;margin:0 0 14px;color:var(--text);font-weight:600}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px;font-size:.875rem}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-col .plain{color:var(--muted)}
.footer-areas{display:flex;flex-wrap:wrap;gap:8px}
.footer-areas .plain{font-size:.8125rem;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-pill);padding:3px 10px}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}
.footer-bottom p{margin:0;font-size:.75rem;color:var(--weak)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .art-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .city-pill{display:none}
  .nav-toggle{display:flex}
  .logo-sub,.logo-divider{display:none}
  .header-inner{height:64px}
  .mobile-nav.open{inset:64px 0 0 0}
  .art-layout{grid-template-columns:1fr}
  .art-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:8px}
  .aside-card{margin-bottom:0}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:64px 0}
}
@media (max-width:639px){
  .header-cta{display:none}
  .art-head{padding-top:32px}
  .art-main{padding:40px 0 56px}
  .pull-quote{margin-bottom:24px}
  .key-card{padding:20px}
  .art-aside{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .pn-grid{grid-template-columns:1fr}
  .pn-card.next{text-align:left}
  .footer-grid{grid-template-columns:1fr}
  .art-cta{padding:22px}
  .section{padding:52px 0}
}
@media (min-width:1024px){
  .nav-toggle{display:none}
  .mobile-nav{display:none !important}
}

/* roulang page: category2 */
:root{
  --brand:#1F4E79;--brand-dark:#163A5A;--brand-light:#E9F0F7;
  --accent:#D9773F;--accent-dark:#C0652F;--accent-light:#FBF0E8;
  --bg:#F7F9FB;--card:#FFFFFF;--line:#E4EAF1;
  --text:#16232F;--muted:#5C6C7C;--weak:#8A97A3;
  --safe:#2F7A6A;--safe-light:#E9F4F1;--warn:#B4552F;
  --r-lg:16px;--r-sm:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,47,.06);
  --sh-2:0 14px 30px -14px rgba(22,35,47,.22);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
.page-body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:1rem;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
.page-body img{max-width:100%;display:block}
.page-body a{color:var(--brand);text-decoration:none;text-underline-offset:4px}
.page-body a:hover{color:var(--brand-dark)}
.page-body h1,.page-body h2,.page-body h3,.page-body h4{margin:0;line-height:1.25;letter-spacing:-.01em;color:var(--text)}
.page-body p{margin:0}
.page-body ul,.page-body ol{margin:0;padding:0;list-style:none}
.page-body button{font:inherit}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 32px}}
@media(min-width:1280px){.wrap{max-width:1240px}}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(180%) blur(6px);
  backdrop-filter:saturate(180%) blur(6px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:12px;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-main{font-size:1.0625rem;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-divider{display:none;width:1px;height:16px;background:var(--line)}
.logo-sub{display:none;font-size:.75rem;color:var(--muted);letter-spacing:.06em;white-space:nowrap}
.main-nav{display:none;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:.9375rem;font-weight:500;
  color:var(--muted);transition:color 180ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:1px;background:var(--brand);
  transition:left 200ms ease,right 200ms ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{left:0;right:0;height:2px}
.header-right{display:flex;align-items:center;gap:14px}
.city-pill{
  display:none;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:#fff;font-size:.8125rem;color:var(--muted);cursor:pointer;
  transition:border-color 180ms ease,color 180ms ease;
}
.city-pill:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle{
  display:flex;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--brand);transition:transform 220ms ease,opacity 220ms ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}
.mobile-nav{display:none}
.mobile-nav.open{
  display:block;position:fixed;inset:72px 0 0 0;background:#fff;z-index:55;
  padding:8px 20px 40px;overflow-y:auto;
}
.mobile-nav a{
  display:block;padding:18px 4px;border-bottom:1px solid var(--line);
  color:var(--text);font-size:1rem;font-weight:500;
}
.mobile-nav a.active{color:var(--brand)}
@media(min-width:1024px){
  .main-nav{display:flex}
  .city-pill{display:inline-flex}
  .nav-toggle{display:none}
  .logo-divider,.logo-sub{display:inline-block}
  .mobile-nav,.mobile-nav.open{display:none}
}

/* 按钮与徽章 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:.9375rem;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:background 180ms ease,color 180ms ease,transform 180ms ease,box-shadow 180ms ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.btn-sm{padding:9px 16px;font-size:.875rem}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:.875rem;font-weight:600}
.link-arrow .ar{transition:transform 180ms ease;font-size:.8rem}
.link-arrow:hover .ar{transform:translateX(3px)}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.8125rem;font-weight:600;
}
.pill-accent{background:var(--accent-light);color:var(--accent-dark)}
.pill-safe{background:var(--safe-light);color:var(--safe)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.75rem;font-weight:500;
}
.tag-line{border:1px solid var(--line);background:#fff;color:var(--muted)}

/* 板块 */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:80px 0}}
.section-alt{background:#fff}
.section-soft{background:var(--brand-light)}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.6rem,2.4vw,2.1rem);margin-bottom:12px}
.section-head p{color:var(--muted);max-width:68ch}
.eyebrow{font-size:.8125rem;letter-spacing:.12em;color:var(--accent-dark);font-weight:600;margin-bottom:12px}

/* 面包屑与页头 */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--weak);padding-top:26px}
.crumb a{color:var(--muted)}
.crumb .sep{color:#C8D2DC}
.cat-hero{display:grid;grid-template-columns:1fr;gap:32px;padding:20px 0 4px}
.cat-hero h1{font-size:clamp(2rem,3.4vw,2.9rem);margin:14px 0 16px}
.cat-hero .lead{color:var(--muted);max-width:60ch}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.shot{
  position:relative;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;background:#EEF2F6;box-shadow:var(--sh-1);
}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.shot-cap{
  position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.94);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 12px;
  font-size:.75rem;font-weight:600;color:var(--brand);
}
@media(min-width:1024px){
  .cat-hero{grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;padding:32px 0 8px}
}

/* 功能卡 */
.feature-grid{display:grid;grid-template-columns:1fr;gap:20px}
.feature-card{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.feature-card::before{content:"";position:absolute;left:0;top:0;right:0;height:2px;background:var(--brand)}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#BFD3E5}
.ico{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.feature-card h3{font-size:1.25rem;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:.9375rem}
.feature-list{margin-top:16px;border-top:1px solid var(--line);padding-top:14px;display:grid;gap:8px}
.feature-list li{display:flex;gap:8px;align-items:flex-start;font-size:.875rem;color:var(--muted)}
.feature-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:8px;flex:0 0 auto}
@media(min-width:768px){.feature-grid{grid-template-columns:repeat(3,1fr)}}

/* 列表主体 + 粘性侧栏 */
.board{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.board{grid-template-columns:1fr 316px;gap:40px;align-items:start}}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.card-grid{grid-template-columns:1fr 1fr}}
.group-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.group-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#BFD3E5}
.group-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#EEF2F6}
.group-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:12px;flex:1}
.group-body h3{font-size:1.0625rem}
.group-body .desc{color:var(--muted);font-size:.875rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag-row{display:flex;flex-wrap:wrap;gap:6px}
.meta-row{font-size:.8125rem;color:var(--weak);border-top:1px solid var(--line);padding-top:12px;margin-top:auto}
.side-col{display:grid;gap:20px}
@media(min-width:1024px){.side-col{position:sticky;top:96px}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{font-size:1rem;margin-bottom:12px}
.rank-list li{display:flex;align-items:baseline;gap:10px;padding:11px 0;border-bottom:1px solid var(--line);font-size:.875rem;color:var(--muted)}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-no{font-size:.8125rem;font-weight:700;color:var(--weak);flex:0 0 20px}
.rank-list .num{margin-left:auto;color:var(--brand);font-weight:600;font-size:.8125rem;white-space:nowrap}
.side-safe{background:var(--safe-light);border-color:#CFE7E0}
.side-safe h3{color:var(--safe)}
.side-safe li{display:flex;gap:8px;font-size:.875rem;color:#2C6257;padding:6px 0}
.side-safe li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--safe);margin-top:9px;flex:0 0 auto}

/* 横滑专题 */
.hscroll{
  display:flex;gap:18px;overflow-x:auto;padding-bottom:14px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.hscroll::-webkit-scrollbar{height:6px}
.hscroll::-webkit-scrollbar-thumb{background:#CBD8E4;border-radius:999px}
.hcard{
  flex:0 0 272px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 180ms ease,box-shadow 180ms ease;
}
.hcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.hcard img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EEF2F6}
.hcard-body{padding:16px 18px 20px}
.hcard-body h3{font-size:1rem;margin-bottom:8px}
.hcard-body p{font-size:.8125rem;color:var(--muted)}

/* 配速刻度 */
.pace-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1)}
@media(min-width:768px){.pace-wrap{padding:32px}}
.pace-bar{position:relative;height:10px;border-radius:999px;background:linear-gradient(90deg,#E9F0F7 0%,#CFE0EF 55%,#F3DCCE 100%);margin:34px 0 12px}
.pace-dot{position:absolute;top:50%;transform:translate(-50%,-50%);width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--brand)}
.pace-dot.hot{border-color:var(--accent)}
.pace-scale{display:flex;justify-content:space-between;font-size:.75rem;color:var(--weak)}
.pace-legend{display:grid;grid-template-columns:1fr;gap:14px;margin-top:24px;border-top:1px solid var(--line);padding-top:20px}
@media(min-width:768px){.pace-legend{grid-template-columns:repeat(3,1fr)}}
.pace-legend div strong{display:block;font-size:.9375rem;margin-bottom:4px}
.pace-legend div span{font-size:.8125rem;color:var(--muted)}

/* FAQ */
.faq-list{border-top:1px solid var(--line);max-width:860px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:none;border:0;text-align:left;font-size:1rem;font-weight:600;
  color:var(--text);cursor:pointer;transition:color 180ms ease;
}
.faq-btn:hover{color:var(--brand)}
.faq-btn:focus-visible{outline:2px solid var(--brand-light);outline-offset:4px}
.faq-btn .sign{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-btn .sign::before,.faq-btn .sign::after{
  content:"";position:absolute;left:0;top:7px;width:16px;height:1.5px;background:var(--brand);
  transition:transform 200ms ease;
}
.faq-btn .sign::after{transform:rotate(90deg)}
.faq-item.open .faq-btn .sign::after{transform:rotate(0deg)}
.faq-panel{display:none;padding:0 0 22px;color:var(--muted);font-size:.9375rem;max-width:68ch}
.faq-item.open .faq-panel{display:block}

/* 资讯列表 */
.post-list{display:grid;grid-template-columns:1fr;gap:18px}
.post-card{
  display:flex;flex-direction:column;gap:10px;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#BFD3E5}
.post-card h3{font-size:1rem;color:var(--text)}
.post-card .desc{color:var(--muted);font-size:.875rem}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.8125rem;color:var(--weak)}
.empty{
  border:1px dashed #CBD8E4;border-radius:var(--r-lg);background:#fff;
  padding:40px 20px;text-align:center;color:var(--muted);font-size:.9375rem;
}
@media(min-width:768px){.post-list{grid-template-columns:repeat(3,1fr)}}
.list-foot{display:flex;justify-content:center;margin-top:28px}

/* 收口 CTA */
.cta-band{
  background:var(--brand-light);border:1px solid #D8E5F0;border-radius:var(--r-lg);
  padding:30px;display:grid;gap:20px;
}
.cta-band h2{font-size:clamp(1.4rem,2.2vw,1.9rem);margin-bottom:8px}
.cta-band p{color:var(--muted);font-size:.9375rem;max-width:60ch}
@media(min-width:768px){
  .cta-band{grid-template-columns:1fr auto;align-items:center;padding:42px}
}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:56px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}}
.footer-brand .logo-main{margin-bottom:14px}
.footer-brand p{color:var(--muted);font-size:.875rem;max-width:38ch}
.footer-col h4{font-size:.9375rem;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col li,.footer-col a{font-size:.875rem;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-areas{display:flex;flex-wrap:wrap;gap:8px}
.footer-areas .plain{
  display:inline-block;padding:3px 10px;border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:.8125rem;color:var(--muted);background:var(--bg);
}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;display:grid;gap:8px;
  font-size:.8125rem;color:var(--weak);
}
@media(min-width:768px){.footer-bottom{grid-template-columns:1fr auto;align-items:center;gap:20px}}

/* roulang page: category3 */
:root{
  --brand:#1F4E79;--brand-dark:#163A5A;--brand-light:#E9F0F7;
  --accent:#D9773F;--accent-dark:#C0652F;--accent-light:#FBF0E8;
  --bg:#F7F9FB;--card:#FFFFFF;--line:#E4EAF1;
  --text:#16232F;--muted:#5C6C7C;--weak:#8A97A3;
  --safe:#2F7A6A;--safe-light:#E9F4F1;--warn:#B4552F;
  --r-lg:16px;--r-sm:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,35,47,.06);
  --sh-2:0 14px 30px -14px rgba(22,35,47,.22);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.page-body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:1rem;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;text-underline-offset:4px;transition:color 180ms ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 32px}}
@media(min-width:1280px){.wrap{padding:0 40px}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(6px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:12px;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-main{font-size:1.0625rem;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-divider{display:none;width:1px;height:16px;background:var(--line)}
.logo-sub{display:none;font-size:.75rem;color:var(--muted);letter-spacing:.06em;white-space:nowrap}
.main-nav{display:none;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:.9375rem;font-weight:500;
  color:var(--muted);transition:color 180ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:1px;background:var(--brand);
  transition:left 200ms ease,right 200ms ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{left:0;right:0;height:2px}
.header-right{display:flex;align-items:center;gap:14px}
.city-pill{
  display:none;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:#fff;font-size:.8125rem;color:var(--muted);cursor:pointer;
  transition:border-color 180ms ease,color 180ms ease;
}
.city-pill:hover{border-color:var(--brand);color:var(--brand)}
.header-cta{display:none}
.nav-toggle{
  display:flex;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--brand);transition:transform 220ms ease,opacity 220ms ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}
.mobile-nav{display:none}
.mobile-nav.open{
  display:block;position:fixed;inset:72px 0 0 0;background:#fff;z-index:55;
  padding:8px 20px 40px;overflow-y:auto;animation:slideDown 220ms ease;
}
.mobile-nav a{
  display:block;padding:18px 4px;border-bottom:1px solid var(--line);
  color:var(--text);font-size:1rem;font-weight:500;
}
.mobile-nav a.active{color:var(--brand)}
@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1024px){
  .main-nav{display:flex}
  .city-pill{display:inline-flex}
  .header-cta{display:inline-flex}
  .nav-toggle{display:none}
  .logo-divider{display:block}
  .logo-sub{display:inline}
  .mobile-nav{display:none !important}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:.9375rem;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all 180ms ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}
.btn-sm{padding:9px 16px;font-size:.875rem}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:.875rem;font-weight:600}
.link-arrow .ar{transition:transform 180ms ease;font-size:.8rem}
.link-arrow:hover .ar{transform:translateX(3px)}

/* 徽章与标签 */
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.8125rem;font-weight:600;
}
.pill-accent{background:var(--accent-light);color:var(--accent-dark)}
.pill-safe{background:var(--safe-light);color:var(--safe)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:.75rem;font-weight:500;
}
.tag-line{border:1px solid var(--line);background:#fff;color:var(--muted)}
.count-badge{font-size:.75rem;color:var(--weak);white-space:nowrap;font-variant-numeric:tabular-nums}

/* 板块 */
.section{padding:56px 0;scroll-margin-top:90px}
@media(min-width:768px){.section{padding:88px 0}}
.section-alt{background:#fff}
.section-soft{background:var(--brand-light)}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.6rem,2.4vw,2.1rem);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1rem;max-width:68ch}
.eyebrow{display:inline-block;font-size:.8125rem;letter-spacing:.12em;color:var(--accent-dark);font-weight:600;margin-bottom:10px}
.section-foot{margin-top:32px;display:flex;justify-content:center}

/* 社区页头 */
.community-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#EEF4FA 0%,#F7F9FB 100%);
}
.community-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/9d6ad4ec54fa7d1c.webp') center/cover no-repeat;opacity:.08;
}
.community-hero .wrap{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--weak);padding-top:26px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .current{color:var(--weak)}
.community-hero-grid{display:grid;grid-template-columns:1fr;gap:36px;padding:34px 0 44px;align-items:end}
@media(min-width:1024px){
  .community-hero-grid{grid-template-columns:minmax(0,1.55fr) minmax(0,.65fr);gap:64px;padding:44px 0 56px}
}
.community-hero h1{font-size:clamp(2.6rem,5.4vw,4rem);letter-spacing:-.02em;margin:16px 0 14px}
.hero-sub{font-size:1.0625rem;font-weight:600;color:var(--brand-dark);margin-bottom:12px}
.hero-desc{color:var(--muted);max-width:62ch;font-size:.9688rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-stats{display:grid;border-top:1px solid var(--line)}
@media(min-width:1024px){.hero-stats{border-top:0;border-left:1px solid var(--line);padding-left:34px}}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.stat-row:last-child{border-bottom:0}
.stat-row .num{font-size:1.625rem;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-row .lbl{font-size:.8125rem;color:var(--muted)}

/* 话题榜 */
.board-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.board-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:32px}}
.topic-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.topic-row{display:flex;align-items:flex-start;gap:16px;padding:17px 22px;border-bottom:1px solid var(--line);transition:background 180ms ease}
.topic-row:last-child{border-bottom:0}
.topic-row:hover{background:var(--bg)}
.topic-no{font-size:1.125rem;font-weight:700;color:var(--weak);min-width:30px;font-variant-numeric:tabular-nums;line-height:1.6}
.topic-row:hover .topic-no{color:var(--accent)}
.topic-body{flex:1;min-width:0}
.topic-title{font-size:.9688rem;font-weight:600;color:var(--text);line-height:1.55}
.topic-meta{margin-top:4px;font-size:.75rem;color:var(--weak)}
.topic-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
}
.topic-main .thumb{aspect-ratio:16/10;background:#EEF2F6;overflow:hidden}
.topic-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease}
.topic-main:hover .thumb img{transform:scale(1.03)}
.topic-main-body{padding:24px;display:flex;flex-direction:column;gap:10px}
.topic-main-body h3{font-size:1.125rem;line-height:1.5}
.topic-main-body p{font-size:.9rem;color:var(--muted)}

/* 话题卡片流 */
.topic-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.topic-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--sh-1);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
  display:flex;flex-direction:column;gap:10px;
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C7DAEC}
.topic-card h3{font-size:1.0625rem;line-height:1.5}
.topic-card p{font-size:.9rem;color:var(--muted)}
.topic-card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line)}

/* 社区公约 */
.rule-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:8px 28px}
.rule-item{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.rule-item:last-child{border-bottom:0}
.rule-no{font-size:1.5rem;font-weight:700;color:var(--brand);opacity:.32;line-height:1.4;font-variant-numeric:tabular-nums}
.rule-item h3{font-size:1rem;margin-bottom:6px}
.rule-item p{font-size:.9rem;color:var(--muted);max-width:66ch}

/* 编辑精选 */
.pick-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:900px){.pick-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.pick-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.pick-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C7DAEC}
.pick-card .thumb{aspect-ratio:16/9;background:#EEF2F6;overflow:hidden}
.pick-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease}
.pick-card:hover .thumb img{transform:scale(1.03)}
.pick-body{padding:20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.pick-body h3{font-size:1rem;line-height:1.55}
.pick-body p{font-size:.875rem;color:var(--muted)}
.pick-foot{margin-top:auto;padding-top:10px;display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid var(--line)}

/* 文章卡片 */
.post-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.post-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:10px;
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C7DAEC}
.post-card h3{font-size:1.0313rem;line-height:1.5}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:var(--brand)}
.post-card p{font-size:.875rem;color:var(--muted)}
.post-card-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.8125rem;color:var(--weak)}
.empty-state{
  border:1px dashed #C9D6E4;border-radius:var(--r-lg);background:#fff;
  padding:44px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state p{color:var(--muted);font-size:.9375rem}

/* FAQ */
.faq-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:6px 26px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 2px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:1rem;font-weight:600;color:var(--text);transition:color 180ms ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px;border-radius:6px}
.faq-ic{position:relative;width:18px;height:18px;flex:none}
.faq-ic::before,.faq-ic::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform 200ms ease,opacity 200ms ease}
.faq-ic::before{top:8px;left:0;width:18px;height:1.5px}
.faq-ic::after{left:8px;top:0;height:18px;width:1.5px}
.faq-item.open .faq-ic::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 2px 24px;color:var(--muted);font-size:.9375rem;max-width:70ch}

/* 收口 */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 24px;display:grid;gap:24px;box-shadow:var(--sh-1);
}
@media(min-width:900px){.cta-band{grid-template-columns:1.45fr .55fr;align-items:center;padding:44px}}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,1.95rem);margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:.9375rem;max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr .7fr .9fr .9fr;gap:40px}}
.footer-brand .logo-main{font-size:1rem;font-weight:700;margin-bottom:12px}
.footer-brand p{color:var(--muted);font-size:.875rem;max-width:46ch}
.footer-col h4{font-size:.875rem;font-weight:700;margin-bottom:14px;color:var(--text)}
.footer-col ul li{padding:7px 0}
.footer-col a{font-size:.875rem;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-col .plain{font-size:.875rem;color:var(--muted)}
.footer-areas{display:flex;flex-wrap:wrap;gap:8px}
.footer-areas .plain{padding:3px 10px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg);font-size:.8125rem}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.footer-bottom p{font-size:.8125rem;color:var(--weak)}
@media(max-width:520px){
  .header-inner{height:64px}
  .mobile-nav.open{inset:64px 0 0 0}
  .community-hero h1{font-size:2.1rem}
  .rule-list{padding:8px 18px}
  .faq-box{padding:6px 18px}
  .topic-row{padding:15px 16px}
  .cta-band{padding:24px 18px}
}