/* roulang page: index */
:root{
  --brand:#14406B;
  --brand-light:#2C6DB2;
  --amber:#E9A13B;
  --amber-dark:#8A5A12;
  --metal:#7A8794;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E3E9F1;
  --text:#1B2733;
  --text-2:#5B6B7C;
  --white:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh:0 6px 24px rgba(20,64,107,.08);
  --sh-hover:0 12px 32px rgba(20,64,107,.14);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-light);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4{font-weight:700;line-height:1.25;margin:0;color:var(--brand);letter-spacing:.2px}
p{margin:0 0 16px}
ul{list-style:none;margin:0;padding:0}
button{font-family:inherit;cursor:pointer}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:3px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:76px 0}
.section.tight{padding:56px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:30px}
.section-sub{font-size:15px;color:var(--text-2);margin:8px 0 0;max-width:660px;line-height:1.75}
.more{font-size:14px;font-weight:600;color:var(--brand-light);white-space:nowrap;display:inline-flex;align-items:center;gap:6px;transition:gap .18s ease,color .18s ease}
.more:hover{gap:11px;color:var(--brand)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-light);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(20,64,107,.24)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:#F2F6FC;color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);height:44px;font-size:14px}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,64,107,.10)}
.nav-top{display:flex;align-items:center;gap:24px;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:11px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
}
.logo-text{font-size:18px;font-weight:700;color:var(--brand);line-height:1.2;letter-spacing:.4px}
.logo-sub{display:block;font-size:11px;font-weight:500;color:var(--metal);letter-spacing:2px;margin-top:2px}
.search-form{
  flex:1 1 auto;max-width:520px;display:flex;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  height:46px;padding:0 4px 0 16px;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 4px rgba(44,109,178,.12)}
.search-form .fa-magnifying-glass{color:var(--metal);font-size:15px}
.search-form input[type="search"]{
  flex:1 1 auto;border:0;outline:0;background:transparent;height:100%;
  font-size:15px;color:var(--text);padding:0 10px;margin:0;box-shadow:none;
}
.search-form input[type="search"]::placeholder{color:#95A2B0}
.search-form input[type="search"]:focus{box-shadow:none;border:0;background:transparent}
.search-btn{border:0;background:var(--brand);color:#fff;height:36px;padding:0 18px;border-radius:999px;font-size:14px;font-weight:600;transition:background .18s ease}
.search-btn:hover{background:var(--brand-light)}
.nav-links{display:flex;align-items:center;gap:22px;flex:0 0 auto}
.nav-links a.nav-link{font-size:15px;color:var(--text-2);font-weight:500;position:relative;padding:6px 0}
.nav-links a.nav-link:hover{color:var(--brand)}
.nav-links a.nav-link.active{color:var(--brand);font-weight:600}
.nav-links a.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:2px;background:var(--brand)}
.cat-bar{display:flex;gap:10px;overflow-x:auto;padding:0 0 14px;scrollbar-width:none}
.cat-bar::-webkit-scrollbar{display:none}
.cat-pill{
  flex:0 0 auto;height:34px;line-height:32px;padding:0 16px;border-radius:999px;
  background:#F2F5F9;color:#3D4D5E;font-size:14px;border:1px solid transparent;
  transition:.18s ease;white-space:nowrap;
}
.cat-pill:hover{color:var(--brand);border-color:var(--brand-light);background:#fff}
.cat-pill.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.cat-pill.active:hover{color:#fff;background:var(--brand)}
.mobile-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand);font-size:18px;margin-left:auto;
}
.mobile-panel{display:none}
.search-notice{
  display:none;background:#F2F6FC;border-top:1px solid var(--line);
  padding:10px 0;font-size:14px;color:var(--brand);
}
.search-notice.show{display:block}

/* Hero */
.hero{position:relative;overflow:hidden;background:#E7EEF6;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:72% center}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.94) 34%,rgba(255,255,255,.62) 60%,rgba(255,255,255,0) 100%);
}
.hero-inner{position:relative;z-index:2;min-height:580px;display:flex;align-items:center}
.hero-content{max-width:560px;padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(233,161,59,.18);color:var(--amber-dark);font-size:13px;font-weight:600;
}
.hero h1{font-size:48px;line-height:1.22;margin:18px 0 14px}
.hero .lead{font-size:18px;line-height:1.75;color:var(--text-2);margin:0 0 26px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-meta{display:flex;flex-wrap:wrap;gap:0;margin-top:30px;font-size:13px;color:var(--metal)}
.hero-meta span{position:relative;padding-left:16px}
.hero-meta span::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:12px;background:#C6D2DF}
.hero-meta span:first-child{padding-left:0}
.hero-meta span:first-child::before{display:none}

/* 横滑卡片 */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;margin:0 -4px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 calc((100% - 80px) / 5);min-width:206px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.rail-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDF2F8}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rail-card:hover .rail-cover img{transform:scale(1.04)}
.badge{
  position:absolute;top:10px;left:10px;height:26px;display:inline-flex;align-items:center;
  padding:0 12px;border-radius:999px;background:rgba(255,255,255,.93);color:var(--brand);
  font-size:13px;font-weight:600;
}
.rail-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.rail-body h3{font-size:16px;line-height:1.5;color:var(--brand);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-body .rail-meta{font-size:13px;color:var(--metal);margin-top:auto}

/* 主推位 */
.feature-grid{margin-top:4px}
.feature-main{
  position:relative;display:flex;align-items:flex-end;min-height:368px;height:100%;
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh);
  transition:box-shadow .18s ease,transform .18s ease;
}
.feature-main:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.feature-main-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,26,44,.05) 30%,rgba(9,26,44,.80) 100%)}
.feature-main-body{position:relative;z-index:2;padding:28px;color:#fff;max-width:520px}
.pill-amber{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--amber);color:#4A2F05;font-size:13px;font-weight:700;
}
.feature-main-body h3{color:#fff;font-size:24px;margin:14px 0 10px}
.feature-main-body p{color:rgba(255,255,255,.86);font-size:15px;margin:0 0 16px}
.feature-arrow{display:inline-flex;align-items:center;gap:8px;color:#fff;font-size:14px;font-weight:600}
.feature-main:hover .feature-arrow{gap:13px}
.feature-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:8px 20px;height:100%;display:flex;flex-direction:column;justify-content:center;
}
.feature-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line);transition:background .18s ease}
.feature-item:last-child{border-bottom:0}
.feature-item img{width:96px;height:72px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.feature-item h4{font-size:15px;line-height:1.5;color:var(--brand);margin:0 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-item span{font-size:13px;color:var(--metal)}
.feature-item:hover h4{color:var(--brand-light)}

/* 分区片单 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);padding:24px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}
.panel-head h3{font-size:20px}
.panel-list li a{display:flex;align-items:flex-start;gap:14px;padding:13px 12px;border-radius:10px;transition:background .18s ease}
.panel-list li a:hover{background:#F9FBFE}
.panel-list .idx{
  font-size:13px;font-weight:700;color:var(--brand-light);line-height:1.6;
  border-left:3px solid var(--brand);padding-left:9px;flex:0 0 auto;
}
.panel-list .txt{display:block}
.panel-list .txt b{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.55}
.panel-list li a:hover .txt b{color:var(--brand)}
.panel-list .txt i{display:block;font-style:normal;font-size:13px;color:var(--metal);margin-top:2px}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:#EDF2F8}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-inline{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:#E8F0FA;color:var(--brand);font-size:13px;font-weight:600;align-self:flex-start;
}
.news-body h3{font-size:17px;line-height:1.55}
.news-body h3 a{color:var(--brand);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a:hover{color:var(--brand-light)}
.news-body p{font-size:14px;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.7}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--metal);margin-top:auto;padding-top:6px}
.news-foot a{font-size:13px;font-weight:600;color:var(--brand-light)}
.news-empty{
  grid-column:1 / -1;border:1.5px dashed #C9D6E4;border-radius:var(--r-card);
  background:#FBFCFE;padding:44px 24px;text-align:center;color:var(--text-2);font-size:15px;
}
.news-empty .btn{margin-top:18px}

/* 数据条 */
.stats{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);
  padding:32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat b{display:block;font-size:28px;color:var(--brand);line-height:1.25;font-weight:700}
.stat span{font-size:14px;color:var(--text-2);display:block;margin-top:6px}

/* FAQ */
.faq{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);transition:border-color .18s ease,box-shadow .18s ease;
}
.faq details:hover{box-shadow:var(--sh-hover)}
.faq details[open]{border-left:3px solid var(--brand)}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq .mark{font-size:20px;line-height:1;color:var(--brand-light);font-weight:600;flex:0 0 auto}
.faq .mark::before{content:"+"}
.faq details[open] .mark::before{content:"−"}
.faq .answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* CTA */
.cta-band{
  background:rgba(20,64,107,.06);border:1px solid rgba(20,64,107,.20);border-radius:18px;
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:26px;margin-bottom:10px}
.cta-band p{margin:0;color:var(--text-2);font-size:15px;max-width:620px}

/* 页脚 */
.site-footer{background:#0F3155;color:#C9DCEE;padding:56px 0 0;margin-top:76px}
.footer-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;letter-spacing:.4px}
.footer-brand .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand p{font-size:14px;color:#A9C3DA;margin:14px 0 18px;line-height:1.8;max-width:280px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A9C3DA}
.footer-col a:hover{color:#fff;text-decoration:underline}
.contact-list li{display:flex;gap:10px;font-size:14px;color:#A9C3DA;margin-bottom:12px;line-height:1.7}
.contact-list i{color:#7FA9CE;margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;
  align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:#8FAEC9;
}

@media (max-width:1024px){
  .hero h1{font-size:40px}
  .hero-inner{min-height:520px}
  .rail-card{flex:0 0 calc((100% - 60px) / 4)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-top .search-form{display:none}
  .mobile-toggle{display:inline-flex}
  .mobile-panel{border-top:1px solid var(--line);padding:16px 0 8px}
  .mobile-panel.open{display:block}
  .mobile-panel .search-form{display:flex;max-width:none;margin:0 0 14px}
  .mobile-panel a.m-item{display:flex;align-items:center;height:48px;padding:0 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--text);font-weight:500}
  .mobile-panel a.m-item.active{color:var(--brand);font-weight:600}
  .mobile-panel .btn{width:100%;margin:16px 0 8px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section.tight{padding:40px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:22px}
  .section-head h2{font-size:22px}
  .hero-inner{min-height:420px;align-items:flex-end}
  .hero-content{padding:48px 0 44px;max-width:100%}
  .hero::after{background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.92) 48%,rgba(255,255,255,.72) 100%)}
  .hero h1{font-size:30px}
  .hero .lead{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-meta{font-size:12px;gap:0;flex-wrap:wrap}
  .hero-meta span{padding-left:12px}
  .rail-card{flex:0 0 78vw;min-width:0}
  .split{grid-template-columns:1fr;gap:16px}
  .feature-main{min-height:280px}
  .feature-main-body{padding:22px}
  .feature-main-body h3{font-size:20px}
  .feature-list{padding:6px 16px;margin-top:16px}
  .stats{padding:24px;gap:18px}
  .stat b{font-size:24px}
  .faq summary{padding:16px 18px;font-size:15px}
  .faq .answer{padding:0 18px 18px;font-size:14px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:20px}
  .cta-band h2{font-size:22px}
  .cta-band .btn{width:100%}
  .site-footer{margin-top:48px;padding-top:40px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
}
@media (max-width:520px){
  .news-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .hero h1{font-size:27px}
  .logo-text{font-size:16px}
  .logo-sub{font-size:10px;letter-spacing:1px}
  .rail-card{flex:0 0 84vw}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}

/* roulang page: article */
:root{
  --brand:#14406B;
  --brand-light:#2C6DB2;
  --amber:#E9A13B;
  --metal:#7A8794;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E3E9F1;
  --text:#1B2733;
  --muted:#5B6B7C;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 6px 24px rgba(20,64,107,.08);
  --shadow-lg:0 12px 32px rgba(20,64,107,.14);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-light);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4,p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(44,109,178,.38);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(20,64,107,.05);
}
.header-top{display:flex;align-items:center;gap:20px;padding:14px 0;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand);}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:17px;flex:0 0 auto;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.3px;white-space:nowrap;}

.search-box{
  flex:1 1 auto;max-width:480px;min-width:180px;
  display:flex;align-items:center;gap:8px;
  height:46px;padding:0 6px 0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box i{color:var(--metal);font-size:14px;}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.search-box input::placeholder{color:#9AA7B4;}
.search-box:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 4px rgba(44,109,178,.12);}
.search-btn{
  height:34px;padding:0 18px;border-radius:999px;background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;transition:background .18s ease;
}
.search-btn:hover{background:var(--brand-light);}

.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{padding:9px 14px;border-radius:999px;font-size:15px;font-weight:500;color:#3B4A5A;transition:background .18s ease,color .18s ease;}
.nav-link:hover{background:#F2F5F9;color:var(--brand);}
.nav-link.active{background:var(--brand);color:#fff;}

.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);color:var(--brand);font-size:17px;
  align-items:center;justify-content:center;background:#fff;
}

.cat-strip{display:flex;gap:10px;overflow-x:auto;padding:0 0 14px;scrollbar-width:none;}
.cat-strip::-webkit-scrollbar{display:none;}
.cat-pill{
  flex:0 0 auto;height:32px;line-height:30px;padding:0 16px;
  border-radius:999px;background:#F2F5F9;color:#3B4A5A;
  font-size:13px;font-weight:500;border:1px solid transparent;
  transition:all .18s ease;
}
.cat-pill:hover{border-color:var(--brand);color:var(--brand);background:#fff;}
.cat-pill.active{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:all .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-light);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:#F2F6FC;color:var(--brand);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;height:42px;padding:0 20px;font-size:14px;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 4px;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;}
.breadcrumb .sep{color:#C2CCD8;}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ============ 文章标题区 ============ */
.article-head{padding:14px 0 0;}
.article-head h1{
  font-size:38px;line-height:1.28;font-weight:700;color:var(--brand);
  letter-spacing:-.2px;max-width:900px;margin:0 0 16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);padding-bottom:22px;
}
.article-meta .sep{color:#C2CCD8;}
.article-meta .cat-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:#E7F0FA;color:var(--brand);
  font-size:13px;font-weight:600;
}
.article-cover{
  margin:0 0 32px;border-radius:var(--radius-img);overflow:hidden;
  aspect-ratio:16/9;background:#E8EEF6;box-shadow:var(--shadow-sm);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;align-items:start;padding-bottom:56px;
}
.article-main{min-width:0;}

.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:34px 36px;
  font-size:16px;line-height:1.85;color:var(--text);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:24px;line-height:1.45;font-weight:700;color:var(--brand);
  margin:34px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
  scroll-margin-top:100px;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;margin:26px 0 12px;color:var(--text);}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body ul li::marker{color:var(--brand-light);}
.article-body ol li::marker{color:var(--brand-light);font-weight:600;}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-left:4px solid var(--brand);
  background:#F2F6FC;border-radius:10px;color:#33506F;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:20px auto;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;font-size:14px;margin:22px 0;
  border:1px solid var(--line);border-radius:10px;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:#F2F6FC;color:var(--brand);font-weight:600;}
.article-body a{color:var(--brand-light);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0;}

.article-empty{
  background:var(--card);border:1px dashed #C7D6E6;border-radius:var(--radius-card);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow-sm);
}
.article-empty i{font-size:38px;color:#B7C7D8;}
.article-empty h2{font-size:22px;color:var(--brand);margin:16px 0 10px;}
.article-empty p{font-size:15px;color:var(--muted);margin:0 0 22px;}

/* ============ 标签 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 0;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 15px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--muted);transition:all .18s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:#F2F6FC;}

/* ============ 相关推荐 ============ */
.related{margin-top:44px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px;}
.section-head h2{font-size:22px;font-weight:700;color:var(--brand);}
.link-more{font-size:14px;font-weight:600;color:var(--brand-light);}
.link-more:hover{color:var(--brand);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.rel-card{
  display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#E8EEF6;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:16px 18px 20px;}
.rel-body .badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;margin-bottom:10px;
  border-radius:999px;background:#E7F0FA;color:var(--brand);font-size:12px;font-weight:600;
}
.rel-body h3{font-size:15px;line-height:1.55;font-weight:600;color:var(--text);}
.rel-card:hover .rel-body h3{color:var(--brand);}

.back-row{margin-top:32px;}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:18px;}
.toc-card{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:20px;
}
.toc-card h3{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--brand);margin:0 0 12px;
}
.toc-card h3 i{color:var(--amber);font-size:13px;}
.toc-list{max-height:320px;overflow-y:auto;}
.toc-list a{
  display:block;padding:8px 12px;font-size:14px;color:var(--muted);
  border-radius:8px;border-left:3px solid transparent;
  transition:all .18s ease;line-height:1.5;
}
.toc-list a:hover{background:#F9FBFE;color:var(--brand);}
.toc-list a.active{background:#F2F6FC;color:var(--brand);font-weight:600;border-left-color:var(--brand);}

.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:22px;
}
.side-card h3{font-size:15px;font-weight:700;color:var(--brand);margin:0 0 8px;}
.side-card p{font-size:13px;line-height:1.8;color:var(--muted);margin:0 0 16px;}
.side-card .side-line{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text);
  padding:9px 0;border-top:1px dashed var(--line);
}
.side-card .side-line i{color:var(--brand-light);width:16px;text-align:center;}
.side-card .btn{width:100%;margin-top:14px;}

/* ============ 转化 CTA ============ */
.cta-band{
  background:rgba(20,64,107,.06);
  border-top:1px solid rgba(20,64,107,.14);
  border-bottom:1px solid rgba(20,64,107,.14);
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--brand);margin-bottom:8px;}
.cta-inner p{margin:0;font-size:15px;color:var(--muted);}

/* ============ 页脚 ============ */
.site-footer{background:#0F2E4D;color:#C9D6E4;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:12px;white-space:nowrap;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand-light);
  display:grid;place-items:center;font-size:16px;color:#fff;flex:0 0 auto;
}
.footer-brand p{font-size:14px;line-height:1.8;color:#9EB1C6;margin:0 0 18px;max-width:270px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#9EB1C6;transition:color .18s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.contact-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#9EB1C6;margin-bottom:12px;line-height:1.6;}
.contact-list i{color:var(--amber);margin-top:5px;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:16px 0;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:13px;color:#7E93A9;
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:24px;}
  .article-head h1{font-size:32px;}
}

@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{order:-1;}
  .toc-card{position:static;}
  .toc-list{max-height:200px;}
  .related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}

@media (max-width:880px){
  .header-top{flex-wrap:wrap;gap:12px;}
  .nav-toggle{display:inline-flex;}
  .search-box{display:none;order:3;width:100%;max-width:none;margin-top:4px;}
  .nav-links{display:none;order:4;width:100%;flex-direction:column;align-items:stretch;gap:2px;margin-top:8px;}
  .header-top.is-open .search-box{display:flex;}
  .header-top.is-open .nav-links{display:flex;}
  .nav-link{padding:12px 14px;border-radius:10px;}
  .nav-links .btn{width:100%;margin-top:8px;}
  .brand-text{font-size:17px;}
  .article-body{padding:24px 20px;}
  .article-head h1{font-size:28px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .cta-inner .btn{width:100%;}
  .cta-inner h2{font-size:23px;}
}

@media (max-width:768px){
  .container{padding:0 16px;}
  .site-footer{padding-top:44px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-bottom:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;}
  .article-cover{margin-bottom:24px;}
  .article-body h2{font-size:21px;margin-top:28px;}
  .article-body h3{font-size:18px;}
}

@media (max-width:560px){
  .article-head h1{font-size:24px;line-height:1.35;}
  .article-meta{font-size:12px;gap:8px;}
  .article-body{padding:20px 16px;font-size:15px;line-height:1.8;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .section-head h2{font-size:19px;}
  .article-empty{padding:44px 20px;}
  .cta-band{padding:40px 0;}
  .cta-inner h2{font-size:20px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-brand{grid-column:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#14406B;
  --ink-2:#2C6DB2;
  --ink-soft:#EAF1F9;
  --amber:#E9A13B;
  --amber-soft:#FBF0DE;
  --steel:#7A8794;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E3E9F1;
  --text:#1B2733;
  --muted:#5B6B7C;
  --white:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh:0 6px 24px rgba(20,64,107,.08);
  --sh-hover:0 12px 32px rgba(20,64,107,.14);
  --maxw:1200px;
  --t:180ms ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--ink-2);}
button{font:inherit;border:0;background:none;color:inherit;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.28;font-weight:700;color:var(--ink);}
:focus-visible{outline:3px solid rgba(44,109,178,.45);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:76px 0;}
.section-tight{padding:52px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;flex-wrap:wrap;}
.section-head h2{font-size:30px;letter-spacing:-.2px;}
.section-head p{color:var(--muted);font-size:15px;max-width:620px;margin-top:8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--ink-2);background:var(--ink-soft);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--amber);}
.eyebrow-amber{background:var(--amber-soft);color:#8A5A12;}
.eyebrow-amber::before{background:var(--ink-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:var(--white);box-shadow:0 6px 18px rgba(20,64,107,.18);}
.btn-primary:hover{background:var(--ink-2);color:var(--white);transform:translateY(-2px);box-shadow:0 10px 26px rgba(20,64,107,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:var(--white);color:var(--ink);border:1.5px solid var(--ink);}
.btn-outline:hover{background:#F2F6FC;color:var(--ink);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink-2);border:1.5px solid var(--line);}
.btn-ghost:hover{border-color:var(--ink-2);background:#F2F6FC;color:var(--ink-2);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-btn);}
.btn-block{width:100%;}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--ink-2);font-weight:600;font-size:15px;}
.btn-link i{transition:transform var(--t);}
.btn-link:hover i{transform:translateX(4px);}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.scrolled{box-shadow:0 6px 22px rgba(20,64,107,.10);}
.header-row{display:flex;align-items:center;gap:22px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--white);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.4px;white-space:nowrap;}
.header-search{
  position:relative;display:flex;align-items:center;
  flex:1 1 auto;max-width:470px;height:46px;padding-left:16px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color var(--t),box-shadow var(--t);
}
.header-search:focus-within{border-color:var(--ink-2);box-shadow:0 0 0 4px rgba(44,109,178,.12);}
.header-search > i{color:var(--steel);font-size:14px;}
.header-search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
  padding:0 10px;font-size:15px;color:var(--text);
}
.header-search input::placeholder{color:#98A4B2;}
.search-btn{
  height:36px;padding:0 18px;margin-right:5px;border-radius:var(--r-pill);
  background:var(--ink);color:var(--white);font-size:14px;font-weight:600;
  transition:background var(--t);
}
.search-btn:hover{background:var(--ink-2);}
.nav-links{display:flex;align-items:center;gap:4px;flex-shrink:0;}
.nav-link{
  padding:8px 13px;border-radius:var(--r-pill);font-size:15px;font-weight:500;
  color:var(--muted);transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--ink);background:#F2F5F9;}
.nav-link.active{color:var(--ink);background:var(--ink-soft);font-weight:600;}
.nav-links .btn{margin-left:8px;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--white);color:var(--ink);font-size:17px;
  align-items:center;justify-content:center;
}
.header-strip{border-top:1px solid var(--line);background:#FCFDFE;}
.strip-row{display:flex;align-items:center;gap:10px;height:52px;overflow-x:auto;scrollbar-width:none;}
.strip-row::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
  height:32px;padding:0 15px;border-radius:var(--r-pill);
  background:#F2F5F9;color:#41505F;font-size:13.5px;font-weight:500;
  border:1px solid transparent;transition:all var(--t);
}
.chip:hover{border-color:var(--ink-2);color:var(--ink);background:var(--white);}
.chip.chip-on{background:var(--ink);color:var(--white);border-color:var(--ink);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;display:none;
}
.mobile-drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(20,40,64,.38);}
.drawer-panel{
  position:absolute;top:0;right:0;width:86%;max-width:340px;height:100%;
  background:var(--white);padding:20px;overflow-y:auto;
  box-shadow:-12px 0 32px rgba(20,64,107,.18);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:16px;font-weight:700;color:var(--ink);}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:16px;
}
.drawer-search{
  display:flex;align-items:center;height:46px;padding-left:14px;margin-bottom:16px;
  background:#F7F9FC;border:1px solid var(--line);border-radius:var(--r-pill);
}
.drawer-search i{color:var(--steel);font-size:14px;}
.drawer-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;padding:0 10px;font-size:15px;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;border-bottom:1px solid var(--line);
  font-size:15.5px;color:var(--text);font-weight:500;
}
.drawer-links a.active{color:var(--ink);font-weight:700;}
.drawer-links a i{color:var(--steel);font-size:13px;}
.drawer-cta{margin-top:20px;}

/* ---------- 分类页头 ---------- */
.page-hero{
  background:var(--bg);
  border-bottom:1px solid var(--line);
  padding:56px 0 58px;
}
.page-hero-inner{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:center;}
.page-hero h1{font-size:46px;letter-spacing:-.6px;margin-bottom:16px;}
.page-hero h1 span{color:var(--ink-2);}
.page-hero .lede{font-size:17px;color:var(--muted);max-width:560px;line-height:1.85;}
.hero-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;}
.hero-figure{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);
  border:1px solid var(--line);background:var(--white);
}
.hero-figure img{width:100%;height:220px;object-fit:cover;border-radius:0;}

/* ---------- 卖点 ---------- */
.feature-grid{margin:0 -12px;}
.feature-cell{padding:0 12px 24px;}
.feature-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D5E1EF;}
.feature-icon{
  width:44px;height:44px;border-radius:12px;background:var(--ink-soft);color:var(--ink-2);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.feature-card:nth-child(2) .feature-icon{background:var(--amber-soft);color:#8A5A12;}
.feature-card h3{font-size:19px;margin-bottom:10px;}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ---------- 车型速览 ---------- */
.model-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.model-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t);
  display:flex;flex-direction:column;
}
.model-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.model-media{position:relative;overflow:hidden;}
.model-media img{width:100%;height:190px;object-fit:cover;transition:transform 320ms ease;}
.model-card:hover .model-media img{transform:scale(1.04);}
.model-badge{
  position:absolute;top:12px;left:12px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.94);color:var(--ink);
}
.model-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.model-body h3{font-size:19px;margin-bottom:8px;}
.model-body p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1;}
.model-meta{
  display:flex;align-items:center;gap:10px;margin-top:16px;
  font-size:13px;color:var(--steel);flex-wrap:wrap;
}
.dot{width:4px;height:4px;border-radius:50%;background:#C9D3DE;display:inline-block;}

/* ---------- 主推位 8/4 ---------- */
.pick-grid{display:grid;grid-template-columns:1.85fr 1fr;gap:24px;align-items:stretch;}
.pick-main{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh);min-height:380px;
  transition:transform var(--t),box-shadow var(--t);
}
.pick-main:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.pick-main img{width:100%;height:100%;min-height:380px;object-fit:cover;}
.pick-overlay{
  position:absolute;inset:auto 0 0 0;padding:80px 28px 26px;
  background:linear-gradient(to top,rgba(10,30,52,.9),rgba(10,30,52,.35) 55%,rgba(10,30,52,0));
  color:var(--white);
}
.pick-overlay .tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);
  font-size:13px;font-weight:600;margin-bottom:14px;
}
.pick-overlay h3{font-size:26px;color:var(--white);margin-bottom:10px;line-height:1.35;}
.pick-overlay p{font-size:14.5px;color:rgba(255,255,255,.85);max-width:520px;}
.pick-side{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:8px 20px;display:flex;flex-direction:column;justify-content:center;
}
.pick-item{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.pick-item:last-child{border-bottom:0;}
.pick-item:hover{background:#F9FBFE;}
.pick-item img{width:96px;height:72px;object-fit:cover;border-radius:var(--r-img);flex-shrink:0;}
.pick-item h4{font-size:15.5px;line-height:1.5;margin-bottom:6px;color:var(--ink);}
.pick-item span{font-size:13px;color:var(--steel);}

/* ---------- 流程 ---------- */
.flow-band{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-item{
  position:relative;padding:26px 22px;border-radius:var(--r-card);
  background:var(--bg);border:1px solid var(--line);
  transition:transform var(--t),box-shadow var(--t),background var(--t);
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--sh);background:var(--white);}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--white);
  font-size:14px;font-weight:700;margin-bottom:14px;
}
.flow-item h3{font-size:17px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- 数据条 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh);text-align:left;
  transition:transform var(--t),box-shadow var(--t);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.stat-num{font-size:34px;font-weight:700;color:var(--ink);letter-spacing:-1px;line-height:1.1;}
.stat-num small{font-size:15px;font-weight:600;color:var(--ink-2);margin-left:4px;letter-spacing:0;}
.stat-label{margin-top:10px;font-size:14px;color:var(--muted);}
.stat-rule{width:28px;height:3px;border-radius:2px;background:var(--amber);margin-bottom:14px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:0 24px;transition:background var(--t),border-color var(--t);
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);
  border-left:3px solid transparent;padding-left:14px;margin-left:-14px;
  transition:background var(--t),border-color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--ink-2);flex-shrink:0;line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-item[open]{border-color:#D7E3F1;}
.faq-item[open] summary{border-left-color:var(--ink-2);}
.faq-item:hover{background:#F9FBFE;}
.faq-answer{padding:0 0 22px 0;font-size:15px;color:var(--muted);line-height:1.85;max-width:760px;}

/* ---------- CTA ---------- */
.cta-band{
  background:rgba(44,109,178,.06);
  border:1px solid rgba(44,109,178,.20);
  border-radius:var(--r-card);
  padding:44px 40px;
  margin:0 auto;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:28px;margin-bottom:10px;}
.cta-inner p{color:var(--muted);font-size:15.5px;max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F3155;color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:76px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.35fr;gap:40px;padding-bottom:44px;}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--white);margin-bottom:14px;}
.footer-logo .logo-mark{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--white);
}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.7);margin-bottom:20px;max-width:300px;}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;
  border-radius:var(--r-btn);border:1.5px solid rgba(255,255,255,.42);color:var(--white);
  font-size:14.5px;font-weight:600;transition:all var(--t);
}
.btn-ghost-light:hover{background:var(--white);color:var(--ink);border-color:var(--white);}
.footer-col h4{font-size:15px;color:var(--white);margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color var(--t);}
.footer-col ul li a:hover{color:var(--white);text-decoration:underline;}
.contact-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.72);margin-bottom:12px;}
.contact-list i{color:var(--amber);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .header-row{gap:14px;}
  .header-search{max-width:340px;}
  .nav-link{padding:8px 10px;font-size:14.5px;}
  .page-hero-inner{grid-template-columns:1fr 320px;gap:32px;}
  .page-hero h1{font-size:38px;}
  .model-grid{gap:18px;}
  .pick-grid{grid-template-columns:1fr;}
  .pick-main{min-height:340px;}
  .pick-main img{min-height:340px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media screen and (max-width:768px){
  .container{padding:0 16px;}
  .header-row{height:66px;gap:10px;}
  .header-search{display:none;}
  .nav-links{display:none;}
  .menu-toggle{display:flex;margin-left:auto;}
  .brand-text{font-size:16.5px;}
  .header-strip{display:none;}
  .section{padding:44px 0;}
  .section-tight{padding:36px 0;}
  .section-head h2{font-size:22px;}
  .section-head p{font-size:14.5px;}
  .page-hero{padding:34px 0 38px;}
  .page-hero-inner{grid-template-columns:1fr;gap:26px;}
  .page-hero h1{font-size:29px;letter-spacing:-.3px;}
  .page-hero .lede{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-figure img{height:180px;}
  .model-grid{grid-template-columns:1fr;gap:16px;}
  .model-media img{height:200px;}
  .flow-grid{grid-template-columns:1fr;gap:14px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .stat-num{font-size:27px;}
  .pick-overlay{padding:60px 20px 20px;}
  .pick-overlay h3{font-size:21px;}
  .cta-band{padding:30px 22px;}
  .cta-inner{flex-direction:column;align-items:stretch;gap:22px;}
  .cta-inner h2{font-size:22px;}
  .cta-inner .btn{width:100%;}
  .site-footer{padding-top:44px;margin-top:48px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:30px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{justify-content:center;text-align:center;}
  .pick-side{padding:4px 16px;}
}

@media screen and (max-width:520px){
  .brand-mark{width:34px;height:34px;font-size:15px;border-radius:9px;}
  .brand-text{font-size:15.5px;}
  .page-hero h1{font-size:25px;}
  .stat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-item{padding:0 18px;}
  .faq-item summary{font-size:15px;padding-left:12px;margin-left:-12px;}
  .pick-item img{width:84px;height:64px;}
  .pick-item h4{font-size:14.5px;}
}

/* roulang page: category2 */
:root{
  --blue:#14406B;
  --blue-light:#2C6DB2;
  --amber:#E9A13B;
  --gray:#7A8794;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E3E9F1;
  --text:#1B2733;
  --text-2:#5B6B7C;
  --white:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh:0 6px 24px rgba(20,64,107,.08);
  --sh-hover:0 12px 32px rgba(20,64,107,.14);
  --container:1200px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;object-fit:cover;}
a{color:var(--blue-light);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--blue);}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--blue);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(44,109,178,.45);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:0;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  background:var(--blue);
  color:var(--white);
  box-shadow:0 4px 14px rgba(20,64,107,.18);
}
.btn:hover{background:var(--blue-light);color:var(--white);transform:translateY(-2px);box-shadow:var(--sh-hover);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--blue);color:var(--white);}
.btn-primary:hover{background:var(--blue-light);color:var(--white);}
.btn-secondary{
  background:var(--white);
  color:var(--blue);
  box-shadow:none;
  border:1.5px solid var(--blue);
}
.btn-secondary:hover{background:#F2F6FC;color:var(--blue);box-shadow:none;transform:translateY(-2px);}
.btn-ghost-light{
  background:transparent;
  color:var(--white);
  border:1.5px solid rgba(255,255,255,.45);
  box-shadow:none;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:var(--white);border-color:#fff;box-shadow:none;transform:translateY(-2px);}
.btn-sm{height:36px;padding:0 18px;font-size:13.5px;border-radius:var(--r-pill);box-shadow:none;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
}
.badge-blue{background:#E8F0FA;color:var(--blue);}
.badge-amber{background:#FCF0DC;color:#8A5A10;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh);}
.nav-top{
  display:flex;
  align-items:center;
  gap:20px;
  padding:14px 0 12px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:var(--blue);
  white-space:nowrap;
  flex:0 0 auto;
}
.brand:hover{color:var(--blue);}
.logo-mark{
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--blue);
  color:var(--white);
  display:grid;
  place-items:center;
  font-size:16px;
  flex:0 0 auto;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 1 46%;
  margin:0 auto;
  height:46px;
  padding:0 6px 0 16px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search:focus-within{
  border-color:var(--blue-light);
  box-shadow:0 0 0 4px rgba(44,109,178,.12);
}
.nav-search i{color:var(--gray);font-size:15px;}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  height:auto;
  margin:0;
  padding:0;
  border:0;
  background:transparent;
  box-shadow:none;
  font-size:14px;
  color:var(--text);
  outline:none;
}
.nav-search input::placeholder{color:#9AA7B4;}
.nav-search button{
  flex:0 0 auto;
  height:36px;
  padding:0 20px;
  border:0;
  border-radius:var(--r-pill);
  background:var(--blue);
  color:var(--white);
  font-size:13.5px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--ease);
}
.nav-search button:hover{background:var(--blue-light);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex:0 0 auto;
}
.nav-hotline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-hotline i{color:var(--blue-light);}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--white);
  color:var(--blue);
  font-size:17px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:var(--blue-light);color:var(--blue-light);}
.nav-links{
  display:flex;
  align-items:center;
  gap:10px;
  overflow-x:auto;
  padding:0 0 14px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-links::-webkit-scrollbar{display:none;}
.nav-link{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 18px;
  border-radius:var(--r-pill);
  background:#F2F5F9;
  color:#3C4A5A;
  font-size:14px;
  font-weight:500;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease);
}
.nav-link:hover{
  background:var(--white);
  color:var(--blue);
  box-shadow:inset 0 0 0 1px var(--blue-light);
}
.nav-link.active{background:var(--blue);color:var(--white);}
.nav-links .btn-sm{margin-left:4px;}

/* 移动端抽屉 */
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:var(--white);
  padding:16px 0 20px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel .nav-search{
  display:flex;
  flex:1 1 auto;
  width:100%;
  max-width:none;
  margin:0 0 14px;
}
.mobile-menu{display:flex;flex-direction:column;}
.mobile-menu a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 4px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-menu a:hover{color:var(--blue-light);}
.mobile-menu a.active{color:var(--blue);font-weight:700;}
.mobile-panel .btn{margin-top:16px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--bg);padding:16px 0 0;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--blue-light);}
.crumb span.sep{color:#B7C2CE;}
.crumb .current{color:var(--blue);font-weight:600;}

/* ---------- 分类页头 ---------- */
.cat-hero{
  background:var(--bg);
  border-bottom:1px solid var(--line);
  padding:28px 0 48px;
}
.cat-hero-inner{
  display:grid;
  grid-template-columns:1fr 360px;
  gap:48px;
  align-items:center;
}
.cat-hero .eyebrow{margin-bottom:16px;}
.cat-hero h1{
  font-size:44px;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--blue);
  margin-bottom:16px;
}
.cat-hero h1 em{
  font-style:normal;
  display:inline-block;
  position:relative;
}
.cat-hero h1 em::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-4px;
  height:3px;
  border-radius:2px;
  background:var(--amber);
  opacity:.85;
}
.cat-hero .lead{
  max-width:560px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.cat-hero-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  border:1px solid var(--line);
  background:var(--card);
}
.cat-hero-figure img{width:100%;height:200px;object-fit:cover;}

/* ---------- 数据条 ---------- */
.stat-strip{padding:32px 0 0;}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.stat-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  padding:20px 22px;
  transition:box-shadow var(--ease),transform var(--ease);
}
.stat-item:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.stat-item strong{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--blue);
  line-height:1.3;
  letter-spacing:-.3px;
}
.stat-item span{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--text-2);
}

/* ---------- 主区 ---------- */
.section{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:30px;
  color:var(--blue);
}
.section-head p{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
}
.section-more{
  font-size:14px;
  font-weight:600;
  color:var(--blue-light);
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.section-more:hover{color:var(--blue);}

/* 筛选胶囊 */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:28px;
}
.chip{
  height:38px;
  padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--white);
  color:#3C4A5A;
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.chip:hover{border-color:var(--blue-light);color:var(--blue);}
.chip.is-active{
  background:var(--blue);
  border-color:var(--blue);
  color:var(--white);
  box-shadow:0 6px 16px rgba(20,64,107,.18);
}

/* 大卡网格 */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin:0;
}
.news-grid > .cell{
  width:auto;
  padding:0;
  margin:0;
  min-width:0;
}
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  overflow:hidden;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.news-card:hover{
  box-shadow:var(--sh-hover);
  transform:translateY(-4px);
  border-color:#D6E1EE;
}
.news-card-media{
  position:relative;
  display:block;
  overflow:hidden;
  background:#EDF2F8;
}
.news-card-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform 320ms ease;
}
.news-card:hover .news-card-media img{transform:scale(1.04);}
.news-card-media .badge{
  position:absolute;
  top:12px;
  left:12px;
  background:rgba(255,255,255,.94);
  color:var(--blue);
  box-shadow:0 2px 8px rgba(20,64,107,.12);
}
.news-card-body{
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
  padding:20px 22px 22px;
}
.news-card-body h3{
  font-size:18px;
  line-height:1.45;
  font-weight:600;
  color:var(--blue);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:52px;
}
.news-card-body h3 a{color:inherit;}
.news-card-body h3 a:hover{color:var(--blue-light);}
.news-card-body p{
  margin-top:10px;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--gray);
}
.news-card-meta .dot{width:3px;height:3px;border-radius:50%;background:#C4CEDA;}

/* 分页 */
.pager{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  margin-top:40px;
  flex-wrap:wrap;
}
.pager-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
  height:40px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--white);
  color:#3C4A5A;
  font-size:14px;
  font-weight:500;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.pager-link:hover{border-color:var(--blue-light);color:var(--blue);}
.pager-link.is-current{
  background:var(--blue);
  border-color:var(--blue);
  color:var(--white);
  font-weight:700;
}
.pager-link.is-disabled{
  color:#AEB9C5;
  pointer-events:none;
  opacity:.7;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  overflow:hidden;
  transition:box-shadow var(--ease),background var(--ease);
}
.faq-item:hover{background:#F9FBFE;box-shadow:var(--sh-hover);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 58px 20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--blue-light);
  line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-item[open]{background:var(--white);}
.faq-item[open]::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--blue);
}
.faq-body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 72px;}
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:36px 40px;
  border-radius:var(--r-card);
  background:rgba(20,64,107,.06);
  border:1px solid rgba(20,64,107,.2);
}
.cta-band h2{
  font-size:26px;
  color:var(--blue);
  margin-bottom:10px;
}
.cta-band p{
  font-size:15px;
  color:var(--text-2);
  max-width:620px;
}
.cta-band .btn{flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0F2E4D;
  color:#D8E3EF;
  margin-top:24px;
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--white);
  margin-bottom:14px;
}
.footer-logo .logo-mark{background:var(--blue-light);}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:#A9BED4;
  max-width:300px;
  margin-bottom:20px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--white);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;
  color:#A9BED4;
  transition:color var(--ease);
}
.footer-col a:hover{color:var(--white);text-decoration:underline;text-underline-offset:3px;}
.contact-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:#A9BED4;
  line-height:1.6;
}
.contact-list i{color:#7FB2E3;margin-top:4px;font-size:13px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:#8FA8C0;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .cat-hero-inner{grid-template-columns:1fr;gap:28px;}
  .cat-hero-figure{max-width:420px;}
  .cat-hero h1{font-size:36px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-band .btn{width:100%;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .nav-search{display:none;}
  .nav-hotline{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-top{gap:12px;padding:12px 0;}
  .brand{font-size:16px;}
  .logo-mark{width:34px;height:34px;font-size:15px;}
  .cat-hero{padding:20px 0 36px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .lead{font-size:15px;}
  .cat-hero-figure{max-width:100%;}
  .cat-hero-figure img{height:170px;}
  .section{padding:40px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:22px;}
  .news-grid{grid-template-columns:1fr;gap:16px;}
  .news-card-body h3{min-height:0;font-size:17px;}
  .faq-item summary{font-size:15px;padding:18px 52px 18px 20px;}
  .faq-body{padding:0 20px 18px;font-size:14.5px;}
  .cta-section{padding:0 0 48px;}
  .cta-band{padding:26px 22px;}
  .cta-band h2{font-size:22px;}
  .stat-grid{gap:12px;}
  .stat-item{padding:16px 18px;}
  .stat-item strong{font-size:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{flex-direction:column;text-align:center;gap:8px;}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .pager-link{min-width:36px;height:36px;padding:0 12px;font-size:13px;}
  .filter-bar{gap:8px;}
  .chip{height:34px;padding:0 15px;font-size:13px;}
}