/* roulang page: index */
:root{
  --brand:#20295E;
  --brand-deep:#161B33;
  --brand-lift:#33409B;
  --amber:#E39A2E;
  --cyan:#2AA9C4;
  --bg:#F5F7FB;
  --bg-alt:#EEF2FA;
  --card:#FFFFFF;
  --line:#E2E7F2;
  --text:#161B33;
  --text-2:#4A5470;
  --text-3:#7A839C;
  --radius-card:14px;
  --radius-poster:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(22,32,74,.04), 0 10px 28px -14px rgba(22,32,74,.18);
  --shadow-lg:0 18px 36px -16px rgba(22,32,74,.28);
  --container:1200px;
  --gap:24px;
  --section:88px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--section) 0}
.section--alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.2px;color:var(--brand-deep)}
.section-head .sub{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-3);max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-lift);white-space:nowrap}
.link-more i{font-size:12px;transition:transform .22s ease}
.link-more:hover i{transform:translateX(3px)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:74px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.2px;color:var(--brand-deep);flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-lift) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 8px 18px -10px rgba(32,41,94,.7);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text small{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.6px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.main-nav a{
  position:relative;display:inline-block;padding:10px 14px;border-radius:9px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease,background-color .2s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--bg-alt)}
.main-nav a.active{color:var(--brand);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;background:var(--amber);
}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  padding:11px 20px;border-radius:var(--radius-btn);
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 12px 24px -14px rgba(32,41,94,.8);
}
.header-cta:hover{background:var(--brand-lift);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.header-cta:active{transform:scale(.98)}

/* Mega 面板 */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 14px;border-radius:9px;font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease,background-color .2s ease;
}
.mega-trigger:hover,.mega:hover .mega-trigger,.mega:focus-within .mega-trigger{color:var(--brand);background:var(--bg-alt)}
.mega-trigger i{font-size:11px;transition:transform .22s ease}
.mega:hover .mega-trigger i,.mega:focus-within .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:660px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:0 26px 60px -26px rgba(22,32,74,.4);
  padding:24px;display:grid;grid-template-columns:1.1fr 1.1fr .9fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:12.5px;font-weight:600;letter-spacing:.8px;color:var(--text-3);margin-bottom:12px}
.mega-col ul{display:flex;flex-direction:column;gap:4px}
.mega-col ul a{display:block;padding:7px 10px;border-radius:8px;font-size:14px;color:var(--text-2);transition:background-color .18s ease,color .18s ease}
.mega-col ul a:hover{background:var(--bg-alt);color:var(--brand)}
.mega-entry{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--bg);
}
.mega-entry img{width:100%;height:96px;object-fit:cover}
.mega-entry div{padding:12px 14px}
.mega-entry strong{display:block;font-size:14px;font-weight:600;color:var(--brand-deep)}
.mega-entry span{display:block;margin-top:4px;font-size:12.5px;color:var(--text-3);line-height:1.6}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:17px;
}
.drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 22px;
}
.drawer.open{display:block}
.drawer a{
  display:block;padding:13px 8px;font-size:15px;font-weight:500;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer a:last-of-type{border-bottom:0}
.drawer a.active{color:var(--brand);font-weight:600}
.drawer .header-cta{margin-top:14px;justify-content:center;width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center right;opacity:.9}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#F5F7FB 0%,rgba(245,247,251,.94) 38%,rgba(245,247,251,.55) 62%,rgba(245,247,251,.15) 100%);
}
.hero-inner{position:relative;padding:78px 0 64px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(42,169,196,.12);color:#1C7F95;font-size:13px;font-weight:600;
}
.hero h1{
  margin-top:20px;font-size:44px;line-height:1.25;font-weight:700;letter-spacing:-.2px;color:var(--brand-deep);
}
.hero h1 em{font-style:normal;color:var(--brand-lift)}
.hero .lede{margin-top:18px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 14px 26px -16px rgba(32,41,94,.9)}
.btn-primary:hover{background:var(--brand-lift);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--bg-alt);border-color:#CBD4E8;transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#3A2705;box-shadow:0 14px 26px -16px rgba(227,154,46,.9)}
.btn-amber:hover{background:#D28C21;transform:translateY(-2px)}
.btn:active{transform:scale(.98)}
.hero-stats{
  margin-top:40px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.hero-stats div{padding:20px 22px;border-right:1px solid var(--line)}
.hero-stats div:last-child{border-right:0}
.hero-stats b{display:block;font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--brand);letter-spacing:-.5px}
.hero-stats span{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-visual .frame{
  border-radius:18px;overflow:hidden;border:1px solid #fff;
  box-shadow:0 28px 60px -28px rgba(22,32,74,.5);
}
.hero-visual img{width:100%;height:360px;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-lg);padding:14px 18px;display:flex;align-items:center;gap:12px;
  max-width:250px;
}
.hero-float i{width:38px;height:38px;border-radius:10px;background:rgba(42,169,196,.14);color:#1C7F95;display:flex;align-items:center;justify-content:center;font-size:16px}
.hero-float strong{display:block;font-size:14px;color:var(--brand-deep)}
.hero-float span{display:block;font-size:12.5px;color:var(--text-3)}

/* ---------- 横滑片库 ---------- */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 20px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-track{background:var(--bg-alt);border-radius:99px}
.rail::-webkit-scrollbar-thumb{background:#C8D2E6;border-radius:99px}
.rail-card{
  flex:0 0 250px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D3DCEF}
.rail-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.rail-card:hover .rail-thumb img{transform:scale(1.04)}
.rail-thumb .badge{position:absolute;left:12px;top:12px}
.rail-body{padding:16px 16px 18px}
.rail-body h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--brand-deep);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-body p{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 11px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;
  background:rgba(42,169,196,.14);color:#1C7F95;
}
.badge--amber{background:rgba(227,154,46,.18);color:#8A5A0C}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:500;background:var(--bg-alt);color:var(--text-2);border:1px solid var(--line);
}

/* ---------- 重点推荐 1 大 3 小 ---------- */
.feature-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:var(--gap)}
.feature-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .28s ease,box-shadow .28s ease;
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-main .thumb{aspect-ratio:16/9;overflow:hidden;position:relative}
.feature-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.feature-main:hover .thumb img{transform:scale(1.04)}
.feature-main .body{padding:22px 24px 26px}
.feature-main h3{font-size:21px;font-weight:600;color:var(--brand-deep);line-height:1.45}
.feature-main p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.feature-side{display:flex;flex-direction:column;gap:16px}
.mini-card{
  display:grid;grid-template-columns:104px 1fr;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:12px;box-shadow:var(--shadow-sm);align-items:center;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#D3DCEF}
.mini-card img{width:104px;height:76px;object-fit:cover;border-radius:var(--radius-poster)}
.mini-card h3{font-size:15px;font-weight:600;color:var(--brand-deep);line-height:1.5}
.mini-card p{margin-top:5px;font-size:13px;color:var(--text-3);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 主题分区 ---------- */
.topic{display:grid;grid-template-columns:210px minmax(0,1fr);gap:32px;align-items:start}
.topic-aside{position:sticky;top:100px}
.topic-aside .kicker{
  display:inline-block;font-family:var(--font-num);font-size:12.5px;font-weight:600;letter-spacing:1.2px;color:var(--cyan);
}
.topic-aside h2{margin-top:10px;font-size:26px;line-height:1.35;font-weight:700;color:var(--brand-deep);letter-spacing:-.2px}
.topic-aside p{margin-top:12px;font-size:14px;line-height:1.8;color:var(--text-3)}
.topic-aside .link-more{margin-top:16px}
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.topic-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D3DCEF}
.topic-card .thumb{aspect-ratio:16/10;overflow:hidden}
.topic-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.topic-card:hover .thumb img{transform:scale(1.04)}
.topic-card .body{padding:16px 18px 20px}
.topic-card h3{font-size:16px;font-weight:600;color:var(--brand-deep);line-height:1.5}
.topic-card p{margin-top:8px;font-size:13.5px;line-height:1.75;color:var(--text-3)}
.topic-card .meta{margin-top:12px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3)}

/* ---------- 最新信息 CMS ---------- */
.post-list{display:flex;flex-direction:column;gap:16px}
.post-card{
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 24px;box-shadow:var(--shadow-sm);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#D3DCEF}
.post-card h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--brand-deep);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card h3 a:hover{color:var(--brand-lift)}
.post-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:12px;display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:12.5px;color:var(--text-3)}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:#C3CBDE}
.empty-state{
  background:#fff;border:1px dashed #CBD4E8;border-radius:var(--radius-card);
  padding:52px 24px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-state i{font-size:30px;color:#B9C3D9}
.empty-state p{margin-top:14px;color:var(--text-3);font-size:14.5px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .26s ease,box-shadow .26s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.step b{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--cyan);letter-spacing:1px;
}
.step h3{margin-top:14px;font-size:17px;font-weight:600;color:var(--brand-deep)}
.step p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2)}
.step::after{
  content:"";position:absolute;right:-11px;top:50px;width:22px;height:1px;background:var(--line);
}
.step:last-child::after{display:none}

/* ---------- 数据带 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.metric{padding:26px 24px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric b{display:block;font-family:var(--font-num);font-size:30px;font-weight:700;letter-spacing:-.6px;color:var(--brand)}
.metric span{display:block;margin-top:6px;font-size:13.5px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq details{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease;
}
.faq details[open]{border-color:#CFD8EC;box-shadow:var(--shadow-lg)}
.faq summary{
  list-style:none;cursor:pointer;padding:19px 24px;display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:600;color:var(--brand-deep);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{margin-left:auto;font-size:13px;color:var(--text-3);transition:transform .24s ease}
.faq details[open] summary i{transform:rotate(180deg)}
.faq .answer{padding:0 24px 22px 24px;font-size:14.5px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand);color:#fff;border-radius:18px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.2px}
.cta-band p{margin-top:14px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.78);max-width:460px}
.cta-form{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);padding:24px}
.cta-form label{display:block;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.85);margin-bottom:10px}
.cta-row{display:flex;gap:12px}
.cta-form input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.96);color:var(--text);
}
.cta-form input::placeholder{color:#9AA3B8}
.cta-form input:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(227,154,46,.3)}
.cta-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.6)}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.cta-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.86)}
.cta-list i{color:var(--amber);font-size:13px}

/* ---------- 页脚 ---------- */
.site-footer{background:#161B33;color:rgba(255,255,255,.72);margin-top:var(--section)}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding:60px 0 40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.5)}
.footer-brand p{margin-top:18px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-col a:hover{color:var(--amber)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 34px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero h1{font-size:40px}
  .topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  :root{--section:56px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-tools .header-cta{display:none}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 48px}
  .hero-visual img{height:280px}
  .feature-grid{grid-template-columns:1fr}
  .topic{grid-template-columns:1fr;gap:24px}
  .topic-aside{position:static}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step::after{display:none}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .hero h1{font-size:30px}
  .section-head h2{font-size:24px}
  .hero-stats{grid-template-columns:1fr}
  .hero-stats div{border-right:0;border-bottom:1px solid var(--line)}
  .hero-stats div:last-child{border-bottom:0}
  .hero-float{left:8px;bottom:12px}
  .topic-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .post-card{grid-template-columns:1fr}
  .post-card .link-more{justify-self:start}
  .cta-band{padding:28px 22px}
  .cta-band h2{font-size:24px}
  .cta-row{flex-direction:column}
  .cta-row .btn{width:100%}
  .footer-top{grid-template-columns:1fr;padding:44px 0 28px}
  .mini-card{grid-template-columns:88px 1fr}
  .mini-card img{width:88px;height:66px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .hero h1{font-size:27px}
  .rail-card{flex:0 0 210px}
}

/* roulang page: article */
:root{
  --brand:#20295E;
  --brand-dark:#161B33;
  --brand-light:#33409B;
  --amber:#E39A2E;
  --cyan:#2AA9C4;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --alt:#EEF2FA;
  --line:#E2E7F2;
  --text:#1B2138;
  --text-2:#2A3150;
  --muted:#5A6480;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(22,32,74,.04), 0 10px 28px -14px rgba(22,32,74,.18);
  --shadow-hover:0 18px 36px -16px rgba(22,32,74,.28);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input{font-family:inherit}
button{border:0;background:none;cursor:pointer;font-size:inherit}
ul,ol{margin:0;padding:0}
li{list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.2px;color:var(--brand-dark)}
p{margin:0}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(22,32,74,.03)}
.header-inner{display:flex;align-items:center;gap:28px;height:74px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,var(--brand) 0%,var(--brand-light) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 6px 14px -8px rgba(32,41,94,.8)}
.logo-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--brand);line-height:1.2}
.logo-text small{font-size:11.5px;font-weight:400;color:var(--muted);letter-spacing:.6px;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;min-width:0}
.main-nav a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap}
.main-nav a:hover{background:var(--alt);color:var(--brand)}
.main-nav a.active{color:var(--brand);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--amber)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.mega-wrap{position:relative}
.mega-toggle{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:var(--radius-sm);background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;transition:background .2s ease,transform .2s ease}
.mega-toggle:hover{background:var(--brand-light)}
.mega-toggle i{font-size:12px;transition:transform .2s ease}
.mega-wrap:hover .mega-toggle i,.mega-wrap:focus-within .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:640px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-hover);padding:22px;
  display:grid;grid-template-columns:1fr 1fr 190px;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h5{margin:0 0 12px;font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--muted);text-transform:uppercase}
.mega-col a{display:block;padding:7px 10px;border-radius:8px;font-size:14.5px;color:var(--text-2)}
.mega-col a:hover{background:var(--alt);color:var(--brand)}
.mega-entry{display:block;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;background:var(--bg)}
.mega-entry img{height:98px;width:100%;object-fit:cover}
.mega-entry span{display:block;padding:9px 11px;font-size:13px;font-weight:600;color:var(--brand);line-height:1.5}
.nav-toggle{display:none}
.nav-toggle-label{display:none;width:42px;height:42px;border-radius:var(--radius-sm);border:1px solid var(--line);color:var(--brand);align-items:center;justify-content:center;font-size:16px;background:#fff}
.drawer-mask{position:fixed;inset:0;background:rgba(22,27,51,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:88}
.mobile-drawer{position:fixed;top:0;right:0;width:308px;max-width:88vw;height:100%;background:#fff;z-index:90;padding:20px;overflow-y:auto;transform:translateX(105%);transition:transform .3s ease;box-shadow:-14px 0 40px -20px rgba(22,32,74,.4)}
.nav-toggle:checked ~ .drawer-mask{opacity:1;visibility:visible}
.nav-toggle:checked ~ .mobile-drawer{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-head span{font-weight:700;color:var(--brand)}
.drawer-close{width:36px;height:36px;border-radius:9px;background:var(--alt);color:var(--brand);display:flex;align-items:center;justify-content:center}
.drawer-nav{margin-top:10px;display:flex;flex-direction:column}
.drawer-nav a{padding:14px 6px;font-size:15.5px;font-weight:500;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-note{margin-top:20px;padding:14px;border-radius:var(--radius-sm);background:var(--alt);font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 0;font-size:13.5px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:10px;color:#B6BFD6}
.crumb .crumb-current{color:var(--brand);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article hero ---------- */
.article-hero{position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,#FFFFFF 0%,rgba(255,255,255,.86) 46%,rgba(255,255,255,.45) 100%),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center right;opacity:.9;
}
.article-hero .container{position:relative;padding-top:46px;padding-bottom:46px}
.hero-tagline{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);background:rgba(42,169,196,.12);color:#1B7E93;font-size:13px;font-weight:600;margin-bottom:18px}
.article-hero h1{font-size:40px;line-height:1.3;font-weight:700;max-width:900px;color:var(--brand-dark)}
.article-meta{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:22px;font-size:13.5px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--cyan);font-size:13px}
.meta-pill{padding:5px 13px;border-radius:var(--radius-pill);background:rgba(227,154,46,.14);color:#A56A12;font-weight:600;font-size:12.5px}

/* ---------- layout ---------- */
.page-main{padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:40px 46px}
.article-body{max-width:100%;font-size:16.5px;line-height:1.9;color:var(--text-2)}
.article-body h2{font-size:26px;line-height:1.45;margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--cyan)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:20px;line-height:1.5;margin:30px 0 12px;color:var(--brand)}
.article-body h4{font-size:17px;margin:24px 0 10px}
.article-body p{margin:0 0 20px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{list-style:disc;margin-bottom:9px}
.article-body ol li{list-style:decimal}
.article-body strong{color:var(--brand-dark);font-weight:700}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(42,169,196,.4)}
.article-body a:hover{color:var(--brand)}
.article-body img{border-radius:12px;margin:26px 0;width:100%;height:auto}
.article-body blockquote{margin:26px 0;padding:18px 22px;background:var(--alt);border-left:4px solid var(--amber);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-2);font-size:15.5px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--alt);color:var(--brand-dark);font-weight:700}
.article-body code{background:var(--alt);color:var(--brand);padding:2px 7px;border-radius:6px;font-size:14px;font-family:Inter,ui-monospace,Menlo,Consolas,monospace}
.article-body pre{background:var(--brand-dark);color:#E6EBFA;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:13.5px;line-height:1.7;margin:24px 0}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

.empty-state{text-align:center;padding:60px 26px;background:var(--alt);border:1px dashed var(--line);border-radius:var(--radius)}
.empty-state i{font-size:38px;color:var(--cyan);opacity:.7}
.empty-state h2{margin:16px 0 8px;font-size:21px}
.empty-state p{color:var(--muted);margin-bottom:22px;font-size:15px}

/* ---------- sidebar ---------- */
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:24px}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--amber);font-size:14px}
.side-list li+li{margin-top:12px}
.side-list a{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--text-2);line-height:1.65}
.side-list a:hover{color:var(--brand)}
.side-list img{width:66px;height:46px;object-fit:cover;border-radius:9px;flex-shrink:0}
.side-num{display:inline-flex;width:22px;height:22px;border-radius:7px;background:var(--alt);color:var(--brand);font-size:12.5px;font-weight:700;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}
.side-list a:hover .side-num{background:var(--brand);color:#fff}
.side-tip{background:var(--alt);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.side-tip h3{font-size:16px;margin-bottom:10px}
.side-tip p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px}

/* ---------- tags ---------- */
.tag-block{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.tag-block h4{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:12px;letter-spacing:.5px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{padding:6px 14px;border-radius:var(--radius-pill);background:rgba(42,169,196,.12);color:#1B7E93;font-size:13px;font-weight:600;transition:background .2s ease,color .2s ease,transform .2s ease}
.tag:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.tag.amber{background:rgba(227,154,46,.15);color:#A56A12}

/* ---------- section ---------- */
.section{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:28px;font-weight:700}
.section-head p{font-size:14.5px;color:var(--muted);margin-top:8px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-more i{color:var(--amber);font-size:12px;transition:transform .2s ease}
.link-more:hover i{transform:translateX(3px)}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.card-media{position:relative;overflow:hidden;background:var(--alt)}
.card-media img{width:100%;height:178px;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17.5px;line-height:1.5;margin-bottom:10px}
.card-body h3 a:hover{color:var(--brand-light)}
.card-body p{font-size:14px;color:var(--muted);line-height:1.72;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted)}
.badge{position:absolute;top:12px;left:12px;padding:4px 11px;border-radius:var(--radius-pill);background:var(--amber);color:#3A2708;font-size:12px;font-weight:700}
.badge.cyan{background:var(--cyan);color:#fff}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:600;color:var(--brand-dark);display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--cyan);transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--brand)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- cta ---------- */
.cta-band{position:relative;margin-top:64px;border-radius:18px;overflow:hidden;background:var(--brand);color:#fff}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(120deg,rgba(32,41,94,.96) 0%,rgba(32,41,94,.86) 55%,rgba(51,64,155,.78) 100%),url(/assets/images/backpic/back-3.png);background-size:cover;background-position:center}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:center;padding:44px 46px}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.4;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:46px;padding:0 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(32,41,94,.9)}
.btn-primary:hover{background:var(--brand-light);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-amber{background:var(--amber);color:#3A2708}
.btn-amber:hover{background:#F0A93F;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--brand);border:1px solid var(--line)}
.btn-outline:hover{background:var(--alt);transform:translateY(-2px)}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.9);margin-bottom:12px;line-height:1.7}
.cta-list i{color:var(--amber);margin-top:5px;font-size:13px}

/* ---------- footer ---------- */
.site-footer{margin-top:88px;background:var(--alt);border-top:1px solid var(--line);padding:54px 0 26px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:340px}
.footer-col h4{font-size:15px;color:var(--brand);margin-bottom:16px}
.footer-col li+li{margin-top:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted)}

@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(3,1fr)}
  .article-hero h1{font-size:36px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .mega-wrap{display:none}
  .nav-toggle-label{display:flex}
  .header-inner{height:68px;gap:16px;justify-content:space-between}
  .article-layout{grid-template-columns:1fr}
  .article-card{padding:32px 30px}
  .cta-inner{grid-template-columns:1fr;padding:36px 32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
  .faq-wrap{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .article-hero .container{padding-top:32px;padding-bottom:32px}
  .article-hero h1{font-size:28px}
  .page-main{padding:34px 0 56px}
  .article-card{padding:24px 20px;border-radius:12px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .section{margin-top:40px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:22px}
  .card-grid{display:flex;overflow-x:auto;gap:16px;padding-bottom:10px;scroll-snap-type:x mandatory}
  .card{min-width:250px;scroll-snap-align:start}
  .card-media img{height:150px}
  .cta-band{margin-top:44px;border-radius:14px}
  .cta-inner{padding:28px 22px}
  .cta-inner h2{font-size:22px}
  .cta-actions .btn{flex:1;min-width:140px}
  .site-footer{margin-top:56px;padding:36px 0 20px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .crumb .crumb-current{max-width:180px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .article-hero h1{font-size:25px}
  .logo-text{font-size:15.5px}
  .logo-mark{width:34px;height:34px;border-radius:10px}
  .article-card{padding:20px 16px}
}

/* roulang page: category1 */
:root{
  --ink:#20295E;
  --ink-bright:#33409B;
  --ink-deep:#161B33;
  --amber:#E39A2E;
  --amber-soft:rgba(227,154,46,.14);
  --cyan:#2AA9C4;
  --cyan-soft:rgba(42,169,196,.12);
  --bg:#F5F7FB;
  --bg-alt:#EEF2FA;
  --card:#FFFFFF;
  --line:#E2E7F2;
  --text:#161B33;
  --muted:#5C6480;
  --muted-2:#7B839C;
  --radius-lg:14px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(22,32,74,.04),0 10px 28px -14px rgba(22,32,74,.18);
  --shadow-lg:0 18px 36px -16px rgba(22,32,74,.28);
  --section:88px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --num:"Inter","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-deep);letter-spacing:-.2px;line-height:1.3;}
h1{font-size:44px;font-weight:700;}
h2{font-size:30px;font-weight:700;}
h3{font-size:21px;font-weight:600;}
h4{font-size:16px;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,247,251,.93);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.header-inner{display:flex;align-items:center;gap:28px;height:74px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--ink),var(--ink-bright));
  color:#fff;display:grid;place-items:center;font-size:15px;
  box-shadow:0 8px 18px -10px rgba(32,41,94,.8);
}
.logo-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--ink);line-height:1.2;}
.logo-text small{font-size:11px;font-weight:500;color:var(--muted-2);letter-spacing:.6px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.main-nav a{
  position:relative;
  padding:10px 14px;border-radius:var(--radius-sm);
  font-size:15px;color:var(--muted);
  transition:color .2s,background .2s;
}
.main-nav a:hover{color:var(--ink);background:var(--bg-alt);}
.main-nav a.active{color:var(--ink);font-weight:600;background:transparent;}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--amber);border-radius:2px;
}
.nav-mega{position:relative;flex-shrink:0;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:999px;
  background:var(--ink);color:#fff;border:none;
  font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s,transform .2s;
}
.mega-trigger:hover{background:var(--ink-bright);}
.mega-trigger:active{transform:scale(.98);}
.mega-trigger i{font-size:11px;}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:660px;padding:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel,
.nav-mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h5{
  margin:0 0 12px;font-size:12.5px;font-weight:600;
  color:var(--muted-2);letter-spacing:.8px;
}
.mega-col ul li{margin-bottom:8px;}
.mega-col ul a{font-size:14px;color:var(--muted);transition:color .2s;}
.mega-col ul a:hover{color:var(--ink);}
.mega-entry{
  display:block;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;background:var(--bg-alt);transition:box-shadow .25s,transform .25s;
}
.mega-entry:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);}
.mega-entry img{width:100%;height:88px;object-fit:cover;}
.mega-entry span{display:block;padding:10px 12px;font-size:13px;color:var(--ink);font-weight:600;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:16px;cursor:pointer;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .2s,color .2s,box-shadow .25s,transform .2s,border-color .2s;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 12px 22px -14px rgba(32,41,94,.9);}
.btn-primary:hover{background:var(--ink-bright);box-shadow:var(--shadow-lg);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--bg-alt);transform:translateY(-2px);}
.btn-amber{background:var(--amber);color:#3A2600;}
.btn-amber:hover{background:#d18c22;transform:translateY(-2px);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
}
.text-link i{font-size:12px;color:var(--amber);transition:transform .2s;}
.text-link:hover i{transform:translateX(3px);}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.tag-cyan{background:var(--cyan-soft);color:#1C7A8F;}
.tag-amber{background:var(--amber-soft);color:#9A6413;}
.tag-line{background:var(--bg-alt);color:var(--muted);border:1px solid var(--line);}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:60px 0 64px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg,rgba(245,247,251,.98) 0%,rgba(245,247,251,.92) 46%,rgba(245,247,251,.6) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center right;
}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:12.5px;font-weight:600;color:var(--ink);
  box-shadow:var(--shadow-sm);
}
.eyebrow i{color:var(--amber);font-size:11px;}
.cat-hero h1{margin:20px 0 16px;max-width:640px;}
.lede{font-size:16.5px;color:var(--muted);max-width:590px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 34px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:#fff;overflow:hidden;box-shadow:var(--shadow-sm);max-width:620px;
}
.hero-stats li{padding:18px 20px;border-right:1px solid var(--line);}
.hero-stats li:last-child{border-right:none;}
.hero-stats b{display:block;font-family:var(--num);font-size:26px;font-weight:700;color:var(--ink);line-height:1.2;}
.hero-stats span{font-size:13px;color:var(--muted-2);}
.cat-hero-media{position:relative;}
.cat-hero-media img{
  width:100%;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);object-fit:cover;aspect-ratio:4/3;
}
.hero-float{
  position:absolute;left:-18px;bottom:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:12px 16px;box-shadow:var(--shadow-sm);
  display:flex;align-items:center;gap:10px;
}
.hero-float i{color:var(--cyan);font-size:16px;}
.hero-float span{font-size:13px;color:var(--ink);font-weight:600;}

/* ---------- sections ---------- */
.section{padding:var(--section) 0;}
.section-alt{background:var(--bg-alt);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:28px;margin-bottom:40px;}
.section-head .head-text{max-width:680px;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px;}
.section-foot{margin-top:36px;text-align:center;}

/* ---------- filter chips ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:10px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  max-width:max-content;margin:0 auto;
}
.chip{
  padding:9px 20px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--muted);
  transition:background .2s,color .2s,transform .2s;
}
.chip:hover{background:var(--bg-alt);color:var(--ink);transform:translateY(-2px);}
.chip.active{background:var(--ink);color:#fff;}

/* ---------- entry cards (two columns) ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.entry-card{
  display:grid;grid-template-columns:190px 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:box-shadow .28s,transform .28s,border-color .28s;
}
.entry-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:#D5DDEE;}
.entry-thumb{position:relative;overflow:hidden;background:var(--bg-alt);min-height:100%;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .entry-thumb img{transform:scale(1.04);}
.entry-body{padding:22px 24px 20px;display:flex;flex-direction:column;gap:12px;}
.entry-tags{display:flex;gap:8px;flex-wrap:wrap;}
.entry-body h3{font-size:19px;}
.entry-body>p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.entry-points{display:flex;flex-direction:column;gap:6px;margin-top:2px;}
.entry-points li{
  position:relative;padding-left:18px;
  font-size:13.5px;color:var(--muted-2);
}
.entry-points li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
}
.entry-body .text-link{margin-top:auto;}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.compare-col{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:box-shadow .28s,transform .28s;
}
.compare-col:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);}
.compare-head{display:flex;flex-direction:column;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px;}
.compare-head h3{font-size:19px;}
.compare-list{display:flex;flex-direction:column;gap:12px;}
.compare-list li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);}
.compare-list i{color:var(--cyan);font-size:13px;margin-top:6px;}
.compare-note{margin-top:18px;font-size:13px;color:var(--muted-2);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:24px 20px;box-shadow:var(--shadow-sm);
  transition:box-shadow .28s,transform .28s;
}
.step:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--bg-alt);color:var(--ink);
  font-family:var(--num);font-size:14px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:13.8px;color:var(--muted);line-height:1.7;}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:box-shadow .28s,transform .28s,border-color .28s;
}
.scene-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:#D5DDEE;}
.scene-icon{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;margin-bottom:14px;
  background:var(--cyan-soft);color:#1C7A8F;font-size:16px;
}
.scene-card h3{font-size:16.5px;margin-bottom:8px;}
.scene-card p{font-size:13.8px;color:var(--muted);line-height:1.7;}

/* ---------- faq ---------- */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .25s,border-color .25s;
}
.faq-item:hover{box-shadow:var(--shadow-lg);border-color:#D5DDEE;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink-deep);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--num);font-size:20px;font-weight:400;
  color:var(--amber);line-height:1;flex-shrink:0;
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-body{
  padding:0 24px 22px;font-size:14.8px;color:var(--muted);line-height:1.8;
  border-top:1px solid transparent;
}

/* ---------- cta ---------- */
.cta-band{
  margin:0 auto var(--section);
  border-radius:18px;overflow:hidden;
  background-image:
    linear-gradient(120deg,rgba(22,27,51,.95),rgba(32,41,94,.92)),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-lg);
}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:52px 48px;}
.cta-band h2{color:#fff;font-size:28px;}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;margin-top:14px;max-width:520px;}
.cta-bullets{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;}
.cta-bullets li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.82);}
.cta-bullets i{color:var(--amber);font-size:13px;}
.cta-card{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);padding:26px 24px;
}
.cta-card h3{color:#fff;font-size:17px;margin-bottom:8px;}
.cta-card>p{color:rgba(255,255,255,.68);font-size:13.5px;margin-bottom:18px;}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;}
.cta-form input{
  flex:1 1 200px;height:46px;padding:0 16px;
  border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.94);color:var(--ink-deep);font-size:14.5px;
  transition:box-shadow .2s,border-color .2s;
}
.cta-form input::placeholder{color:#8B93AA;}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(42,169,196,.25);}
.form-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55);}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line);}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--muted);max-width:340px;line-height:1.8;}
.footer-col h4{font-size:14.5px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:13.8px;color:var(--muted);transition:color .2s;}
.footer-col ul a:hover{color:var(--ink);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding-top:22px;font-size:12.8px;color:var(--muted-2);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .entry-grid{gap:20px;}
  .entry-card{grid-template-columns:170px 1fr;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  :root{--section:64px;}
  h1{font-size:36px;}
  h2{font-size:26px;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;}
  .main-nav{
    position:fixed;left:0;right:0;top:74px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 20px 20px;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);
    margin-left:0;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:13px 14px;font-size:15.5px;}
  .main-nav a.active::after{left:14px;right:auto;width:26px;bottom:8px;}
  .nav-mega{display:none;}
  .cat-hero-grid{grid-template-columns:1fr;gap:34px;}
  .cat-hero-media{max-width:560px;}
  .hero-float{left:14px;}
  .entry-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:30px;padding:40px 30px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .filter-bar{max-width:100%;justify-content:center;border-radius:var(--radius-lg);}
}
@media (max-width:767px){
  :root{--section:48px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .container{padding:0 18px;}
  .cat-hero{padding:40px 0 44px;}
  .hero-stats{grid-template-columns:1fr;max-width:100%;}
  .hero-stats li{border-right:none;border-bottom:1px solid var(--line);}
  .hero-stats li:last-child{border-bottom:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .entry-card{grid-template-columns:1fr;}
  .entry-thumb{aspect-ratio:16/9;min-height:0;}
  .steps{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-inner{padding:32px 20px;}
  .cta-band{margin-bottom:var(--section);border-radius:14px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-item .faq-body{padding:0 18px 18px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn{width:100%;}
  .filter-bar{border-radius:14px;gap:8px;}
  .chip{padding:8px 14px;font-size:13px;}
}

/* roulang page: category2 */
:root{
  --indigo:#20295E;
  --indigo-deep:#161B33;
  --indigo-light:#33409B;
  --amber:#E39A2E;
  --cyan:#2AA9C4;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --alt:#EEF2FA;
  --line:#E2E7F2;
  --text:#1B2340;
  --muted:#5B6484;
  --radius-card:14px;
  --radius-poster:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(22,32,74,.04),0 10px 28px -14px rgba(22,32,74,.18);
  --shadow-lg:0 18px 36px -16px rgba(22,32,74,.28);
  --container:1200px;
  --gap:24px;
}
*,*::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:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--indigo-deep);letter-spacing:-.2px;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
::selection{background:rgba(42,169,196,.25)}

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

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--indigo);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--indigo-light);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--indigo);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--alt);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-amber{background:var(--amber);color:#3A2606}
.btn-amber:hover{background:#cf8a22;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--indigo-light)}
.text-link i{transition:transform .2s ease}
.text-link:hover i{transform:translateX(3px)}

/* 徽章与标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:rgba(42,169,196,.12);color:#12708A;
}
.tag-amber{background:rgba(227,154,46,.16);color:#8A5A0B}
.tag-plain{background:var(--alt);color:var(--muted)}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:74px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--indigo),var(--indigo-light));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;
  box-shadow:0 8px 18px -10px rgba(32,41,94,.6);
}
.logo-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--indigo);line-height:1.15;letter-spacing:-.3px}
.logo-text small{font-size:11.5px;font-weight:500;color:var(--muted);letter-spacing:.6px;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.main-nav a{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:#3B4467}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.main-nav a:hover{color:var(--indigo)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--indigo);font-weight:700}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

/* 快捷面板 */
.mega-wrap{position:relative}
.mega-btn{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--indigo);
  transition:background .2s ease,box-shadow .2s ease,transform .15s ease;
}
.mega-btn:hover{background:var(--alt);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:620px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:22px;
  display:grid;grid-template-columns:1fr 1fr 200px;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega-wrap:hover .mega-panel,.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h5{margin:0 0 12px;font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--muted);text-transform:uppercase}
.mega-col a{display:block;padding:7px 0;font-size:14px;color:#3B4467;border-radius:6px}
.mega-col a:hover{color:var(--indigo);padding-left:5px}
.mega-entry{background:var(--alt);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:9px}
.mega-entry img{border-radius:10px;aspect-ratio:16/10;object-fit:cover;width:100%}
.mega-entry span{font-size:13px;font-weight:600;color:var(--indigo)}
.mega-entry em{font-style:normal;font-size:12px;color:var(--muted);line-height:1.6}

/* 移动端菜单 */
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;color:var(--indigo);font-size:16px}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:84vw;z-index:120;
  background:#fff;box-shadow:-18px 0 40px -22px rgba(22,32,74,.4);
  padding:22px 20px;transform:translateX(102%);transition:transform .28s ease;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer h5{font-size:12.5px;letter-spacing:1px;color:var(--muted);margin:18px 0 8px;text-transform:uppercase}
.mobile-drawer a{display:block;padding:13px 12px;border-radius:10px;font-size:15px;font-weight:500;color:#3B4467;background:var(--bg);margin-bottom:8px}
.mobile-drawer a.active{background:var(--indigo);color:#fff}
.drawer-close{width:36px;height:36px;border-radius:10px;background:var(--alt);color:var(--indigo);font-size:15px}
.drawer-mask{position:fixed;inset:0;background:rgba(22,27,51,.45);z-index:110;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s}
.drawer-mask.open{opacity:1;visibility:visible}

/* 通用板块 */
.section{padding:88px 0}
.section-alt{background:var(--alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:30px}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;margin-bottom:14px;
  padding:5px 13px;border-radius:999px;background:rgba(42,169,196,.12);
  color:#12708A;font-size:12.5px;font-weight:700;letter-spacing:.4px;
}

/* 内页首屏 */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#F5F7FB 6%,rgba(245,247,251,.94) 42%,rgba(245,247,251,.35) 78%,rgba(245,247,251,.1) 100%);
}
.page-hero .container{position:relative;padding-top:64px;padding-bottom:70px}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--indigo-light)}
.breadcrumb i{font-size:10px;color:#A6AECB}
.hero-panel{max-width:660px}
.hero-panel h1{font-size:44px;font-weight:700;line-height:1.25;margin:14px 0 16px}
.hero-panel .lead{font-size:17px;color:#3E476B;max-width:590px}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-facts{display:flex;gap:34px;margin-top:34px;flex-wrap:wrap}
.hero-facts div span{display:block;font-size:22px;font-weight:700;color:var(--indigo);font-family:Inter,system-ui,sans-serif}
.hero-facts div em{font-style:normal;font-size:13px;color:var(--muted)}

/* 横滑精选条 */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 2px 20px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:#CCD5E8;border-radius:6px}
.rail-item{
  flex:0 0 248px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.rail-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.rail-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--alt)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rail-item:hover .rail-thumb img{transform:scale(1.04)}
.rail-item .rail-body{padding:15px 16px 18px}
.rail-item h3{font-size:16px;font-weight:600;margin-bottom:6px}
.rail-item p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* 筛选标签行 */
.filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.chip{
  padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:13.5px;font-weight:600;color:#4A5379;transition:all .2s ease;
}
.chip:hover{border-color:var(--cyan);color:#12708A}
.chip.is-on{background:var(--indigo);border-color:var(--indigo);color:#fff}

/* 三列紧凑卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#D3DBEC}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--alt)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-thumb .tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);color:#12708A}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.card-body h3{font-size:19px;font-weight:600}
.card-body p{font-size:14px;color:var(--muted);line-height:1.75}
.card-meta{
  margin-top:auto;padding-top:13px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted);
}
.card-meta .text-link{font-size:13px}

/* 适用场景 */
.scene{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.scene .ico{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(42,169,196,.12);color:#12708A;font-size:18px;margin-bottom:16px;
}
.scene h3{font-size:18px;margin-bottom:8px}
.scene p{font-size:14px;color:var(--muted)}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-sm);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:Inter,system-ui,sans-serif;font-size:13px;font-weight:700;color:var(--amber);
  display:block;margin-bottom:12px;letter-spacing:1px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}

/* 数据带 */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:34px}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow-sm);
}
.metric span{font-family:Inter,system-ui,sans-serif;font-size:30px;font-weight:700;color:var(--indigo);line-height:1.1}
.metric em{font-style:normal;font-size:14px;font-weight:600;color:var(--text)}
.metric small{font-size:13px;color:var(--muted)}

/* FAQ */
.faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.faq summary{
  list-style:none;cursor:pointer;padding:19px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--indigo-deep);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{color:var(--cyan);transition:transform .25s ease;flex-shrink:0}
.faq details[open] summary i{transform:rotate(180deg)}
.faq .answer{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85}

/* CTA */
.cta-band{background:var(--indigo);color:#fff;padding:70px 0}
.cta-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.cta-inner h2{color:#fff;font-size:32px;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 240px;height:46px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);
  color:#fff;font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(227,154,46,.28);background:rgba(255,255,255,.16)}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.6);margin-top:12px}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:66px 0 26px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--muted);max-width:340px;line-height:1.8}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--indigo-deep)}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--indigo-light)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* 响应式 */
@media (max-width:1279px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .mega-wrap{display:none}
  .section{padding:64px 0}
  .hero-panel h1{font-size:36px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .page-hero .container{padding-top:42px;padding-bottom:48px}
  .page-hero::before{background:linear-gradient(180deg,#F5F7FB 5%,rgba(245,247,251,.95) 55%,rgba(245,247,251,.86) 100%)}
  .hero-panel h1{font-size:28px}
  .hero-panel .lead{font-size:15.5px}
  .hero-facts{gap:22px}
  .grid-3,.grid-2,.grid-4,.metrics{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .logo-text{font-size:15.5px}
  .cta-inner h2{font-size:25px}
  .card-body h3{font-size:17.5px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .hero-actions .btn{width:100%}
  .rail-item{flex:0 0 78%}
}

/* roulang page: category3 */
:root{
  --ink:#20295E;
  --ink-deep:#161B33;
  --ink-light:#33409B;
  --amber:#E39A2E;
  --cyan:#2AA9C4;
  --bg:#F5F7FB;
  --card:#FFFFFF;
  --alt:#EEF2FA;
  --line:#E2E7F2;
  --text:#26304A;
  --muted:#6B7387;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(22,32,74,.04),0 10px 28px -14px rgba(22,32,74,.18);
  --sh-2:0 18px 36px -16px rgba(22,32,74,.28);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(22,32,74,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#20295E,#33409B);
  color:#fff;font-size:15px;
  box-shadow:0 6px 14px -6px rgba(32,41,94,.6);
}
.logo-text{
  display:flex;flex-direction:column;
  font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.2px;line-height:1.25;
}
.logo-text small{
  font-size:11.5px;font-weight:400;color:var(--muted);
  letter-spacing:.08em;line-height:1.4;
}
.main-nav{display:flex;align-items:center;gap:26px;margin-right:auto}
.main-nav a{
  position:relative;
  font-size:15px;
  color:#414B66;
  padding:6px 0;
  transition:color .2s ease;
  white-space:nowrap;
}
.main-nav a:hover{color:var(--ink)}
.main-nav a.active{color:var(--ink);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:0;bottom:-2px;
  width:100%;height:3px;border-radius:999px;background:var(--amber);
}
.header-actions{display:flex;align-items:center;gap:14px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 10px 22px -12px rgba(32,41,94,.7)}
.btn-primary:hover{background:var(--ink-light);transform:translateY(-2px);box-shadow:0 16px 28px -14px rgba(32,41,94,.7)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-outline:hover{background:var(--alt);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.98)}
.btn-amber{background:var(--amber);color:#2A1D04;box-shadow:0 10px 22px -12px rgba(227,154,46,.8)}
.btn-amber:hover{background:#D08C22;transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
}
.link-arrow i{color:var(--amber);font-size:12px;transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(3px)}

/* Mega 面板 */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  font-size:14px;color:#414B66;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.mega-trigger:hover{background:var(--alt);color:var(--ink);border-color:#D5DDEE}
.mega-trigger i{font-size:11px;color:var(--cyan)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;
  width:640px;padding:22px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-2);
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mega:hover .mega-panel,
.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h5{
  font-size:12.5px;font-weight:600;color:var(--muted);
  letter-spacing:.1em;margin-bottom:12px;
}
.mega-col ul li{margin-bottom:10px}
.mega-col ul a{font-size:14px;color:#39425C;transition:color .2s ease}
.mega-col ul a:hover{color:var(--ink)}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:box-shadow .25s ease,transform .25s ease;
}
.mega-card:hover{box-shadow:var(--sh-1);transform:translateY(-2px)}
.mega-card img{width:100%;height:96px;object-fit:cover}
.mega-card span{display:block;padding:10px 12px;font-size:13px;color:var(--ink);font-weight:600}

/* 移动端抽屉 */
.nav-drawer-check{position:absolute;opacity:0;pointer-events:none;width:0;height:0}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:0 auto}

/* ---------- 内页首屏 ---------- */
.hero{
  position:relative;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg,#F5F7FB 0%,rgba(245,247,251,.95) 36%,rgba(245,247,251,.6) 64%,rgba(245,247,251,0) 100%),
    url('/assets/images/backpic/back-1.webp') center right/cover no-repeat;
}
.hero-inner{padding:78px 0 66px;max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(42,169,196,.12);color:#1C7A8C;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.eyebrow i{font-size:11px}
.hero h1{
  margin-top:18px;
  font-size:44px;font-weight:700;line-height:1.25;
  letter-spacing:-.2px;color:var(--ink-deep);
}
.hero-sub{margin-top:16px;font-size:17px;color:#4A5468;max-width:580px}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{
  margin-top:44px;
  display:grid;grid-template-columns:repeat(3,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat{padding:18px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{
  display:block;font-family:var(--font-num);
  font-size:26px;font-weight:700;color:var(--ink);line-height:1.3;
}
.stat b em{font-style:normal;font-size:14px;color:var(--muted);margin-left:4px;font-weight:500}
.stat span{font-size:13px;color:var(--muted)}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:40;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
}
.anchor-inner{
  display:flex;align-items:center;gap:10px;
  padding:12px 0;overflow-x:auto;
}
.anchor-inner::-webkit-scrollbar{height:0}
.anchor-label{font-size:13px;color:var(--muted);flex-shrink:0;margin-right:4px}
.anchor-inner a{
  flex-shrink:0;
  padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;
  font-size:13.5px;color:#414B66;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.anchor-inner a:hover{background:var(--alt);color:var(--ink);transform:translateY(-1px)}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--alt);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:34px;
}
.section-head h2{
  font-size:30px;font-weight:700;color:var(--ink-deep);
  letter-spacing:-.2px;line-height:1.3;
}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--muted);max-width:660px}
.section-head .head-side{flex-shrink:0}

.tag{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(42,169,196,.12);color:#1C7A8C;
}
.tag-amber{background:rgba(227,154,46,.16);color:#8A5B0B}
.tag-ink{background:rgba(32,41,94,.08);color:var(--ink)}

/* ---------- 行式列表 ---------- */
.row-list{display:grid;gap:14px}
.row-item{
  display:grid;
  grid-template-columns:132px 1fr auto;
  align-items:center;
  gap:22px;
  padding:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.row-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5DDEE}
.row-thumb{
  width:132px;aspect-ratio:3/2;border-radius:var(--r-img);
  overflow:hidden;background:var(--alt);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.row-item:hover .row-thumb img{transform:scale(1.04)}
.row-body h3{font-size:19px;font-weight:600;color:var(--ink-deep);margin-bottom:6px;line-height:1.5}
.row-body p{font-size:14.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-body .row-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}
.row-meta{
  display:flex;flex-direction:column;align-items:flex-end;gap:8px;
  min-width:138px;font-size:12.5px;color:#8A93A8;font-family:var(--font-num);
}
.row-meta .row-time{display:flex;align-items:center;gap:6px}
.row-meta i{color:var(--cyan);font-size:12px}

/* ---------- KPI ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.kpi{
  padding:24px 22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.kpi:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.kpi .kpi-num{
  font-family:var(--font-num);font-size:30px;font-weight:700;
  color:var(--ink);line-height:1.2;display:flex;align-items:baseline;gap:4px;
}
.kpi .kpi-num em{font-style:normal;font-size:14px;font-weight:500;color:var(--muted)}
.kpi h3{margin-top:10px;font-size:16px;font-weight:600;color:var(--ink-deep)}
.kpi p{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- 对照表 ---------- */
.table-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow-x:auto;
}
table.matrix{width:100%;border-collapse:collapse;min-width:720px}
table.matrix th,table.matrix td{
  padding:16px 20px;text-align:left;font-size:14.5px;
  border-bottom:1px solid var(--line);
}
table.matrix th{
  font-size:13px;font-weight:600;color:var(--muted);
  letter-spacing:.06em;background:var(--alt);
}
table.matrix tbody tr:last-child td{border-bottom:0}
table.matrix td:first-child{font-weight:600;color:var(--ink-deep)}
table.matrix tbody tr:hover{background:#FAFBFE}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  position:relative;padding:26px 22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;
  background:rgba(32,41,94,.08);color:var(--ink);
  margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:600;color:var(--ink-deep);margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 提示卡片 ---------- */
.tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tip-card{
  padding:24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.tip-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tip-icon{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(42,169,196,.12);color:#1C7A8C;font-size:16px;
  margin-bottom:14px;
}
.tip-card h3{font-size:17px;font-weight:600;color:var(--ink-deep);margin-bottom:8px}
.tip-card p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:#D5DDEE;box-shadow:var(--sh-2)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-deep);
  cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--cyan);transition:transform .2s ease;
}
.faq details[open] summary::after{content:"\f068"}
.faq .faq-body{padding:0 22px 20px;font-size:14.5px;color:#4A5468;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#1B2350 0%,#20295E 55%,#2B377E 100%);
  color:#fff;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:58px 0;
}
.cta-inner h2{font-size:30px;font-weight:700;letter-spacing:-.2px;line-height:1.35}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.78);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}
.cta-actions .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#C7CDE0;padding:60px 0 26px}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;
  padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease}
.footer-col ul a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .tip-grid{grid-template-columns:repeat(2,1fr)}
  .mega-panel{width:560px}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:72px;right:0;bottom:0;width:290px;
    flex-direction:column;align-items:flex-start;gap:0;
    padding:20px 24px 32px;margin:0;
    background:#fff;border-left:1px solid var(--line);
    transform:translateX(101%);
    transition:transform .28s ease;
    box-shadow:-14px 0 34px rgba(22,32,74,.14);
    overflow-y:auto;
  }
  .nav-drawer-check:checked ~ .main-nav{transform:translateX(0)}
  .main-nav a{width:100%;padding:15px 0;border-bottom:1px solid var(--line);font-size:15.5px}
  .main-nav a.active::after{left:0;bottom:8px;width:34px}
  .mega{display:none}
  .hero-inner{padding:60px 0 52px}
  .hero h1{font-size:34px}
  .section{padding:56px 0}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .header-inner{height:64px;gap:16px}
  .main-nav{top:64px;width:100%;border-left:0}
  .anchor-bar{top:64px}
  .btn-cta{display:none}
  .section{padding:44px 0}
  .hero{
    background:
      linear-gradient(180deg,rgba(245,247,251,.97) 0%,rgba(245,247,251,.9) 60%,rgba(245,247,251,.78) 100%),
      url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  }
  .hero-inner{padding:44px 0 40px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-stats{grid-template-columns:1fr;margin-top:32px}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px}
  .section-head h2{font-size:23px}
  .row-item{grid-template-columns:96px 1fr;gap:14px;align-items:start}
  .row-thumb{width:96px;aspect-ratio:4/3}
  .row-body h3{font-size:16.5px}
  .row-meta{grid-column:1 / -1;flex-direction:row;align-items:center;justify-content:flex-start;min-width:0}
  .kpi-grid,.steps,.tip-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0}
  .cta-inner h2{font-size:23px}
  .footer-top{grid-template-columns:1fr;gap:26px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .hero h1{font-size:25px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}