/* roulang page: index */
:root{
  --hth-blue:#1D5A9E;
  --hth-blue-dark:#143F70;
  --hth-blue-light:#E8F0FA;
  --hth-amber:#D97A22;
  --hth-teal:#2F9E8F;
  --bg:#F5F7FA;
  --panel:#FFFFFF;
  --band:#EEF3F9;
  --text:#1B2430;
  --text-2:#5C6B7A;
  --text-3:#8A97A6;
  --border:#E2E8F0;
  --line:#EDF1F6;
  --danger:#C0392B;
  --r-card:14px;
  --r-btn:8px;
  --r-input:10px;
  --r-pill:999px;
  --sh:0 1px 2px rgba(20,40,70,.05),0 8px 24px rgba(20,40,70,.06);
  --sh-hover:0 2px 4px rgba(20,40,70,.06),0 16px 36px rgba(20,40,70,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.2px;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--hth-blue);text-decoration:none;transition:color var(--t) var(--ease),border-color var(--t) var(--ease);}
a:hover{color:var(--hth-blue-dark);}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0 0 12px;color:var(--hth-blue-dark);letter-spacing:.5px;}
h1{font-size:40px;line-height:1.25;font-weight:700;}
h2{font-size:28px;line-height:1.3;font-weight:700;}
h3{font-size:19px;line-height:1.45;font-weight:600;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--hth-blue);outline-offset:2px;box-shadow:0 0 0 4px rgba(29,90,158,.16);border-radius:var(--r-btn);}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}
.hth-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.hth-section{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head p{margin:6px 0 0;color:var(--text-2);font-size:15px;max-width:640px;}
.section-head .more-link{font-size:14px;font-weight:600;color:var(--hth-amber);white-space:nowrap;}
.section-head .more-link i{margin-left:6px;transition:transform var(--t) var(--ease);}
.section-head .more-link:hover i{transform:translateX(4px);}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--hth-amber);letter-spacing:2px;margin-bottom:10px;}

/* 顶部信息条 */
.topbar{background:var(--hth-blue-dark);color:#fff;font-size:13px;height:36px;}
.topbar .hth-container{display:flex;align-items:center;justify-content:space-between;height:36px;}
.topbar-left{display:flex;align-items:center;gap:14px;color:rgba(255,255,255,.86);}
.topbar-left .domain{font-weight:600;letter-spacing:.6px;color:#fff;}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.5);}
.topbar-right{display:flex;align-items:center;gap:20px;}
.topbar-right a{color:rgba(255,255,255,.88);}
.topbar-right a:hover{color:#fff;text-decoration:underline;}
.topbar-right i{margin-right:6px;}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;}
.main-nav{background:var(--panel);border-bottom:1px solid var(--border);height:68px;}
.main-nav .hth-container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--hth-blue-dark);letter-spacing:.5px;}
.brand:hover{color:var(--hth-blue-dark);}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--hth-blue-light);display:flex;align-items:center;justify-content:center;border:1px solid rgba(29,90,158,.16);}
.brand-mark svg{width:20px;height:20px;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-list a{position:relative;display:block;padding:8px 12px;font-size:15px;font-weight:600;color:var(--text-2);border-radius:var(--r-btn);}
.nav-list a::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:2px;background:transparent;transition:background var(--t) var(--ease);}
.nav-list a:hover{color:var(--hth-blue);background:var(--hth-blue-light);}
.nav-list a.active{color:var(--hth-blue);}
.nav-list a.active::after{background:var(--hth-blue);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 22px;height:44px;font-size:14px;font-weight:600;border-radius:var(--r-btn);border:1px solid transparent;transition:all var(--t) var(--ease);white-space:nowrap;}
.btn-primary{background:var(--hth-blue);color:#fff;border-color:var(--hth-blue);}
.btn-primary:hover{background:var(--hth-blue-dark);border-color:var(--hth-blue-dark);color:#fff;box-shadow:var(--sh);}
.btn-secondary{background:#fff;color:var(--hth-blue);border-color:rgba(29,90,158,.42);}
.btn-secondary:hover{background:var(--hth-blue-light);color:var(--hth-blue-dark);border-color:var(--hth-blue);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:13px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--border);background:#fff;color:var(--hth-blue-dark);font-size:17px;align-items:center;justify-content:center;}
.nav-toggle:hover{background:var(--hth-blue-light);}
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;box-shadow:-16px 0 44px rgba(20,40,70,.16);transform:translateX(102%);transition:transform 240ms var(--ease);z-index:90;padding:22px;overflow-y:auto;}
.drawer.open{transform:translateX(0);}
.drawer-mask{position:fixed;inset:0;background:rgba(20,40,70,.46);opacity:0;visibility:hidden;transition:all 240ms var(--ease);z-index:80;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--border);background:#fff;color:var(--text-2);font-size:16px;}
.drawer-close:hover{background:var(--band);color:var(--hth-blue);}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:13px 12px;font-size:15px;font-weight:600;color:var(--text);border-radius:var(--r-btn);border-bottom:1px solid var(--line);}
.drawer-nav a:hover{background:var(--hth-blue-light);color:var(--hth-blue);}
.drawer-nav a.active{color:var(--hth-blue);}
.drawer .btn{width:100%;margin-top:20px;}

/* Hero */
.hero{position:relative;min-height:520px;display:flex;align-items:center;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(20,63,112,.84) 0%,rgba(29,90,158,.74) 58%,rgba(29,90,158,.6) 100%);}
.hero-inner{position:relative;z-index:2;width:100%;padding:84px 0 76px;}
.hero-copy{max-width:620px;color:#fff;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);font-size:13px;font-weight:600;letter-spacing:.6px;margin-bottom:18px;}
.hero h1{color:#fff;margin-bottom:16px;text-shadow:0 2px 12px rgba(12,32,60,.24);}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.9);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:44px;border-top:1px solid rgba(255,255,255,.24);padding-top:22px;gap:0;}
.hero-stats div{flex:1 1 150px;padding-right:24px;margin-right:24px;border-right:1px solid rgba(255,255,255,.2);}
.hero-stats div:last-child{border-right:0;margin-right:0;}
.hero-stats strong{display:block;font-size:23px;font-weight:700;color:#fff;line-height:1.3;}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.78);}

/* 合集目录 */
.catalog-tools{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:26px;padding:16px 18px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh);}
.catalog-tools label{font-size:14px;font-weight:600;color:var(--text-2);white-space:nowrap;}
.catalog-tools input{flex:1 1 260px;height:44px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r-input);background:#fff;font-size:15px;color:var(--text);transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);}
.catalog-tools input:focus{outline:none;border-color:var(--hth-blue);box-shadow:0 0 0 4px rgba(29,90,158,.14);}
.card-index{display:flex;flex-direction:column;height:100%;padding:24px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh);transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);}
.card-index:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(29,90,158,.3);}
.card-index .num{font-size:20px;font-weight:700;color:var(--hth-amber);letter-spacing:1px;margin-bottom:12px;}
.card-index h3{margin-bottom:8px;}
.card-index p{color:var(--text-2);font-size:15px;margin-bottom:20px;}
.card-index .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}
.card-index .foot .arrow{color:var(--hth-amber);transition:transform var(--t) var(--ease);}
.card-index:hover .foot .arrow{transform:translateX(4px);}
.blank-card{display:none;padding:36px;text-align:center;color:var(--text-2);background:var(--panel);border:1px dashed var(--border);border-radius:var(--r-card);}

/* 精选条目 */
.feature-large{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);}
.feature-large:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.feature-large .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--hth-blue-light);}
.feature-large .thumb img{width:100%;height:100%;object-fit:cover;}
.feature-large .body{padding:26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.feature-large h3{font-size:22px;}
.feature-large p{color:var(--text-2);margin:0;}
.feature-large .meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);display:flex;justify-content:space-between;align-items:center;}
.row-card{display:block;padding:18px 16px 18px 20px;background:var(--panel);border:1px solid var(--border);border-left:4px solid var(--hth-blue);border-radius:var(--r-card);transition:border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);}
.row-card + .row-card{margin-top:12px;}
.row-card:hover{border-left-color:var(--hth-amber);transform:translateY(-2px);box-shadow:var(--sh);}
.row-card h4{margin:0 0 4px;font-size:16px;font-weight:600;color:var(--hth-blue-dark);line-height:1.5;}
.row-card p{margin:0;font-size:14px;color:var(--text-2);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.row-card .t{margin-top:8px;font-size:13px;color:var(--text-3);}

/* 标签与徽章 */
.badge{display:inline-block;padding:3px 11px;font-size:12px;font-weight:600;border-radius:var(--r-pill);background:var(--hth-blue-light);color:var(--hth-blue);}
.badge-state{background:rgba(47,158,143,.12);color:var(--hth-teal);}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-block;padding:6px 14px;font-size:13px;font-weight:600;color:var(--hth-blue);background:var(--panel);border:1px solid var(--border);border-radius:var(--r-pill);transition:all var(--t) var(--ease);}
.tag:hover{border-color:var(--hth-blue);background:var(--hth-blue-light);color:var(--hth-blue-dark);}
.tag.active{background:var(--hth-blue);border-color:var(--hth-blue);color:#fff;}

/* 内容卡 */
.card-content{height:100%;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);}
.card-content:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(29,90,158,.28);}
.card-content .card-link{display:flex;flex-direction:column;height:100%;color:inherit;}
.card-content .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--hth-blue-light);}
.card-content .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.card-content:hover .thumb img{transform:scale(1.03);}
.card-content .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-content h3{font-size:18px;margin:0;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-content .card-desc{margin:0;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-content .card-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);display:flex;align-items:center;justify-content:space-between;gap:10px;}
.card-content .card-meta .link-mark{font-weight:600;color:var(--hth-amber);}
.card-content:hover .card-meta .link-mark{text-decoration:underline;}

/* 最新信息 */
.latest{background:var(--band);}
.list-note{font-size:13px;color:var(--text-3);}
.empty-state{padding:52px 24px;text-align:center;background:var(--panel);border:1px dashed var(--border);border-radius:var(--r-card);}
.empty-state .ic{width:56px;height:56px;margin:0 auto 16px;border-radius:var(--r-pill);background:rgba(29,90,158,.1);display:flex;align-items:center;justify-content:center;color:rgba(29,90,158,.42);font-size:22px;}
.empty-state p{color:var(--text-2);margin-bottom:18px;}

/* 查询路径 */
.steps{display:grid;gap:24px;}
.step{position:relative;padding:26px 24px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh);transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.step .no{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r-pill);background:var(--hth-blue-light);color:var(--hth-blue);font-weight:700;font-size:15px;margin-bottom:14px;}
.step h3{margin-bottom:8px;}
.step p{margin:0;color:var(--text-2);font-size:15px;}

/* FAQ */
.faq-wrap{max-width:840px;}
.faq-item{border-bottom:1px solid var(--border);background:transparent;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0 20px 0;font-size:16px;font-weight:600;color:var(--hth-blue-dark);cursor:pointer;list-style:none;position:relative;transition:padding var(--t) var(--ease);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{color:var(--hth-amber);transition:transform var(--t) var(--ease);}
.faq-item[open] summary{padding-left:14px;}
.faq-item[open] summary::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;background:var(--hth-blue);}
.faq-item[open] summary .chev{transform:rotate(180deg);}
.faq-item .answer{padding:0 0 22px;color:var(--text-2);font-size:15px;max-width:760px;}

/* CTA 带 */
.cta-band{position:relative;background:var(--hth-blue-light);border:1px solid rgba(29,90,158,.14);border-radius:var(--r-card);padding:36px;overflow:hidden;}
.cta-band .cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-band h2{margin-bottom:8px;font-size:24px;}
.cta-band p{margin:0;color:var(--text-2);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-deco{position:absolute;right:24px;top:0;bottom:0;width:260px;opacity:.5;pointer-events:none;}
.cta-deco svg{width:100%;height:100%;}

/* 相关推荐 */
.rec-card{display:block;height:100%;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.rec-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--hth-blue-light);}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;}
.rec-card .body{padding:18px;}
.rec-card h3{font-size:17px;margin:10px 0 0;line-height:1.5;}

/* 弹窗 */
.reveal.hth-modal{border-radius:var(--r-card);border:1px solid var(--border);box-shadow:var(--sh-hover);padding:26px;}
.reveal.hth-modal h3{margin-bottom:6px;}
.reveal.hth-modal p{font-size:14px;color:var(--text-2);}
.copy-row{display:flex;gap:10px;margin:16px 0 6px;flex-wrap:wrap;}
.copy-row input{flex:1 1 220px;height:44px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r-input);color:var(--text-2);font-size:14px;background:var(--bg);}
.copy-row input:focus{outline:none;border-color:var(--hth-blue);box-shadow:0 0 0 4px rgba(29,90,158,.14);}
.copy-tip{font-size:13px;color:var(--hth-teal);min-height:20px;}

/* 页脚 */
.site-footer{background:var(--hth-blue-dark);color:rgba(255,255,255,.82);margin-top:0;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0;}
.footer-col{padding:0 28px;border-right:1px solid rgba(255,255,255,.14);}
.footer-col:first-child{padding-left:0;}
.footer-col:last-child{border-right:0;padding-right:0;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);}
.footer-col p{font-size:14px;color:rgba(255,255,255,.72);margin:0 0 10px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:1px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.76);font-size:14px;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact{font-size:14px;color:rgba(255,255,255,.76);}
.footer-contact strong{display:block;color:#fff;font-size:15px;margin-bottom:6px;font-weight:600;}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.14);padding:18px 0;font-size:13px;color:rgba(255,255,255,.62);}
.footer-bottom .hth-container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:var(--r-pill);background:var(--hth-blue);color:#fff;border:none;font-size:16px;box-shadow:var(--sh-hover);opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--t) var(--ease);z-index:70;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--hth-blue-dark);}

@media (max-width:1023px){
  h1{font-size:32px;}
  h2{font-size:24px;}
  .hero{min-height:460px;}
  .hero-inner{padding:64px 0 58px;}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:34px;}
  .footer-col{border-right:0;padding:0;}
  .nav-list{display:none;}
  .nav-actions .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .steps{grid-template-columns:1fr 1fr;}
  .cta-deco{display:none;}
}
@media (max-width:767px){
  .hth-container{padding-left:16px;padding-right:16px;}
  .hth-section{padding:44px 0;}
  h1{font-size:26px;}
  h2{font-size:21px;}
  h3{font-size:17px;}
  body{font-size:15px;}
  .topbar-right{display:none;}
  .hero{min-height:420px;}
  .hero-inner{padding:52px 0 46px;}
  .hero-sub{font-size:15px;}
  .hero-stats div{flex:1 1 45%;padding-right:16px;margin-right:16px;border-right:0;margin-bottom:16px;}
  .catalog-tools{flex-direction:column;align-items:stretch;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .brand{font-size:17px;}
  .section-head{align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --hth-blue:#1D5A9E;
  --hth-blue-dark:#143F70;
  --hth-blue-light:#E8F0FA;
  --amber:#D97A22;
  --teal:#2F9E8F;
  --teal-light:#E4F4F1;
  --bg:#F5F7FA;
  --panel:#FFFFFF;
  --band:#EEF3F9;
  --text:#1B2430;
  --muted:#5C6B7A;
  --faint:#8A97A6;
  --border:#E2E8F0;
  --line:#EDF1F6;
  --danger:#C0392B;
  --r-card:14px;
  --r-btn:8px;
  --r-input:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,40,70,.05), 0 8px 24px rgba(20,40,70,.06);
  --shadow-hover:0 2px 4px rgba(20,40,70,.06), 0 16px 36px rgba(20,40,70,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::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 SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--hth-blue);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--hth-blue-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--hth-blue);outline-offset:2px;box-shadow:0 0 0 4px rgba(29,90,158,.16);border-radius:4px;}

/* ---------- 容器 ---------- */
.hth-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部信息条 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.topbar{
  height:36px;
  background:var(--hth-blue-dark);
  color:#FFFFFF;
  font-size:13px;
}
.topbar .hth-container{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;}
.topbar-left .domain{font-weight:600;letter-spacing:.4px;}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.55);display:inline-block;}
.topbar-right{display:flex;align-items:center;gap:22px;}
.topbar-right a{color:rgba(255,255,255,.88);font-size:13px;display:inline-flex;align-items:center;gap:6px;}
.topbar-right a:hover{color:#FFFFFF;text-decoration:underline;}

/* ---------- 主导航 ---------- */
.main-nav{
  background:#FFFFFF;
  border-bottom:1px solid var(--border);
  height:68px;
}
.main-nav .hth-container{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:var(--hth-blue-dark);
  letter-spacing:.4px;
  flex:none;
}
.brand:hover{color:var(--hth-blue);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--hth-blue-light);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.brand-mark svg{width:20px;height:20px;}

.nav-list{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  justify-content:center;
}
.nav-list li{list-style:none;}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  border-radius:var(--r-btn);
}
.nav-list a:hover{color:var(--hth-blue);background:var(--hth-blue-light);}
.nav-list a.active{color:var(--hth-blue);}
.nav-list a.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:-2px;
  height:3px;border-radius:3px;background:var(--hth-blue);
}

.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:13.5px;}
.btn-primary{background:var(--hth-blue);color:#FFFFFF;box-shadow:0 6px 16px rgba(29,90,158,.20);}
.btn-primary:hover{background:var(--hth-blue-dark);color:#FFFFFF;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#FFFFFF;border-color:rgba(255,255,255,.72);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#FFFFFF;border-color:#FFFFFF;}
.btn-outline{background:#FFFFFF;color:var(--hth-blue);border-color:var(--hth-blue);}
.btn-outline:hover{background:var(--hth-blue-light);color:var(--hth-blue-dark);}

.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--border);
  background:#FFFFFF;
  border-radius:var(--r-btn);
  color:var(--hth-blue-dark);
  font-size:16px;
  cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--hth-blue-light);}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(20,40,70,.48);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);
  z-index:80;
}
.drawer-overlay.open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:290px;max-width:86vw;
  background:#FFFFFF;
  box-shadow:-12px 0 32px rgba(20,40,70,.14);
  transform:translateX(100%);
  transition:transform .24s var(--ease);
  z-index:90;
  padding:22px 20px 30px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-head strong{font-size:16px;color:var(--hth-blue-dark);}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-btn);border:1px solid var(--border);
  background:#FFFFFF;color:var(--muted);cursor:pointer;font-size:15px;
}
.drawer-close:hover{background:var(--hth-blue-light);color:var(--hth-blue);}
.drawer-list{display:flex;flex-direction:column;gap:4px;}
.drawer-list a{
  display:block;padding:11px 12px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:var(--muted);
}
.drawer-list a:hover{background:var(--hth-blue-light);color:var(--hth-blue);}
.drawer-list a.active{color:var(--hth-blue);background:var(--hth-blue-light);}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  min-height:330px;
  display:flex;align-items:center;
  background-image:linear-gradient(115deg,rgba(20,63,112,.84),rgba(29,90,158,.72)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#FFFFFF;
  padding:52px 0 44px;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;background:rgba(255,255,255,.16);
}
.page-hero .hth-container{position:relative;z-index:2;}
.crumb{
  font-size:13px;color:rgba(255,255,255,.78);margin-bottom:16px;
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#FFFFFF;text-decoration:underline;}
.crumb .sep{opacity:.6;}
.crumb .current{color:#FFFFFF;font-weight:600;}
.page-hero h1{
  font-size:40px;
  line-height:1.25;
  letter-spacing:.5px;
  color:#FFFFFF;
  max-width:760px;
}
.hero-sub{
  margin-top:16px;
  font-size:16.5px;
  line-height:1.8;
  color:rgba(255,255,255,.9);
  max-width:660px;
}
.hero-stats{
  margin-top:28px;
  display:flex;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.24);
  padding-top:18px;
  gap:0;
}
.hero-stats div{
  padding-right:26px;margin-right:26px;
  border-right:1px solid rgba(255,255,255,.24);
  min-width:104px;
}
.hero-stats div:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-stats strong{display:block;font-size:20px;font-weight:700;color:#FFFFFF;line-height:1.4;}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.76);}

/* ---------- 板块 ---------- */
.section{padding:72px 0;}
.section-band{background:var(--band);}
.section-head{margin-bottom:34px;max-width:760px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--hth-blue);
  background:var(--hth-blue-light);
  padding:5px 12px;border-radius:var(--r-pill);
  margin-bottom:14px;
}
.section-head h2{font-size:28px;}
.section-head p{margin-top:10px;color:var(--muted);font-size:15.5px;}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:34px;flex-wrap:wrap;
}
.section-head-row h2{font-size:28px;}
.section-head-row p{margin-top:10px;color:var(--muted);font-size:15.5px;max-width:660px;}
.text-link{
  font-size:14px;font-weight:600;color:var(--hth-blue);
  display:inline-flex;align-items:center;gap:6px;
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.text-link:hover{border-bottom-color:var(--amber);color:var(--hth-blue-dark);}
.text-link i{transition:transform .2s var(--ease);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 标准卡 ---------- */
.std-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.std-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px 22px 22px;
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;
}
.std-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D5E1F0;}
.std-num{
  font-size:20px;font-weight:700;color:var(--amber);letter-spacing:1px;
  margin-bottom:12px;
}
.std-card h3{font-size:19px;margin-bottom:10px;}
.std-card p{font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ---------- 条目列表区 ---------- */
.entry-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:32px;align-items:start;}
.filter-panel{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:22px 20px;
  box-shadow:var(--shadow);
  position:sticky;top:120px;
}
.filter-panel h3{font-size:16px;margin-bottom:12px;padding-left:10px;position:relative;}
.filter-panel h3::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;
  border-radius:3px;background:var(--hth-blue);
}
.filter-group{padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line);}
.filter-group:last-of-type{border-bottom:0;margin-bottom:6px;padding-bottom:0;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--hth-blue-light);color:var(--hth-blue);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  cursor:default;
}
.tag.is-on{background:var(--hth-blue);color:#FFFFFF;}
.tag.is-soft{background:var(--band);color:var(--muted);}
.filter-note{
  font-size:13px;color:var(--faint);line-height:1.7;margin-top:6px;
}
.filter-cta{margin-top:18px;}
.filter-cta .btn{width:100%;}

.list-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 4px 16px;
  border-bottom:1px solid var(--border);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.list-bar span{font-size:13.5px;color:var(--faint);}
.list-bar strong{color:var(--text);font-size:14.5px;}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}

.content-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  height:100%;
}
.content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D5E1F0;}
.card-media{position:relative;overflow:hidden;background:var(--hth-blue-light);}
.card-media img{width:100%;height:180px;object-fit:cover;transition:transform .3s var(--ease);}
.content-card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--hth-blue-light);color:var(--hth-blue);
  align-self:flex-start;
  margin-bottom:12px;
}
.badge-teal{background:var(--teal-light);color:var(--teal);}
.badge-amber{background:#FBEEE0;color:var(--amber);}
.card-body h3{
  font-size:19px;
  line-height:1.45;
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14.5px;color:var(--muted);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--faint);
}
.card-foot .go{
  width:30px;height:30px;border-radius:50%;
  background:var(--hth-blue-light);color:var(--hth-blue);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.content-card:hover .card-foot .go{background:var(--hth-blue);color:#FFFFFF;transform:translateX(3px);}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step;}
.step{
  position:relative;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:26px 20px 22px;
  box-shadow:var(--shadow);
}
.step::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  display:inline-block;
  font-size:20px;font-weight:700;color:var(--amber);
  letter-spacing:1px;margin-bottom:10px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);}
.step::after{
  content:"";
  position:absolute;top:38px;right:-13px;width:24px;height:1px;
  background:var(--border);
}
.step:last-child::after{display:none;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
ul.accordion{
  background:transparent;
  border:0;
  border-top:1px solid var(--border);
}
ul.accordion li.accordion-item{
  border-bottom:1px solid var(--border);
  background:transparent;
}
ul.accordion li.accordion-item .accordion-title{
  border:0;
  border-left:3px solid transparent;
  padding:20px 44px 20px 16px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  background:transparent;
  position:relative;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
ul.accordion li.accordion-item .accordion-title:hover{
  background:var(--panel);color:var(--hth-blue);
}
ul.accordion li.accordion-item.is-active .accordion-title{
  border-left-color:var(--hth-blue);
  color:var(--hth-blue);
  background:var(--panel);
}
ul.accordion li.accordion-item .accordion-title::before{
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:18px;top:50%;transform:translateY(-50%) rotate(0deg);
  font-size:12px;color:var(--faint);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
ul.accordion li.accordion-item.is-active .accordion-title::before{
  transform:translateY(-50%) rotate(180deg);color:var(--hth-blue);
}
ul.accordion li.accordion-item .accordion-content{
  border:0;
  padding:0 24px 22px 19px;
  background:var(--panel);
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}

/* ---------- 相关分类编号卡 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.num-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.num-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D5E1F0;}
.num-card .n{font-size:20px;font-weight:700;color:var(--amber);letter-spacing:1px;margin-bottom:12px;}
.num-card h3{font-size:19px;margin-bottom:10px;}
.num-card p{font-size:14.5px;color:var(--muted);flex:1 1 auto;}
.num-card .foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--faint);
}
.num-card .foot i{transition:transform .2s var(--ease);}
.num-card:hover .foot i{transform:translateX(4px);color:var(--amber);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--hth-blue-light);
  border-top:1px solid #D8E5F4;
  border-bottom:1px solid #D8E5F4;
  padding:52px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:26px;color:var(--hth-blue-dark);}
.cta-inner p{margin-top:10px;color:var(--muted);font-size:15px;max-width:600px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--hth-blue-dark);color:rgba(255,255,255,.82);}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:0;
  padding:60px 0 44px;
}
.footer-col{padding:0 26px;}
.footer-col:first-child{padding-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.14);}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;color:#FFFFFF;margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-col p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:10px;}
.footer-col h4{font-size:15px;color:#FFFFFF;margin-bottom:16px;font-weight:600;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:13.5px;color:rgba(255,255,255,.78);}
.footer-links a:hover{color:#FFFFFF;text-decoration:underline;}
.footer-contact strong{display:block;font-size:14px;color:#FFFFFF;margin-bottom:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:18px 0;
  font-size:13px;
}
.footer-bottom .hth-container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:rgba(255,255,255,.66);
}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:26px;
  width:46px;height:46px;border-radius:50%;
  border:0;background:var(--hth-blue);color:#FFFFFF;
  font-size:16px;cursor:pointer;
  box-shadow:0 10px 24px rgba(29,90,158,.28);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background .2s var(--ease);
  z-index:70;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--hth-blue-dark);}

/* ---------- Reveal 弹窗 ---------- */
.reveal{
  border-radius:var(--r-card);
  border:1px solid var(--border);
  box-shadow:var(--shadow-hover);
  padding:28px 26px;
}
.reveal h3{font-size:20px;margin-bottom:12px;}
.reveal p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.share-link{
  display:flex;align-items:center;gap:10px;
  background:var(--band);border:1px solid var(--border);
  border-radius:var(--r-input);
  padding:11px 14px;font-size:13.5px;color:var(--muted);
  word-break:break-all;
}
.reveal .close-button{
  color:var(--faint);
  background:transparent;border:0;font-size:22px;line-height:1;
  top:14px;right:16px;
}
.reveal .close-button:hover{color:var(--hth-blue);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-list{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero h1{font-size:32px;}
  .std-grid{grid-template-columns:repeat(2,1fr);}
  .entry-layout{grid-template-columns:1fr;gap:24px;}
  .filter-panel{position:static;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px 0;padding:48px 0 34px;}
  .footer-col{padding:0 22px;}
  .footer-col:nth-child(odd){padding-left:0;}
  .footer-col:nth-child(even){border-left:1px solid rgba(255,255,255,.14);}
  .footer-col:nth-child(3){border-left:0;padding-left:0;}
}

@media screen and (max-width:767px){
  .hth-container{padding:0 16px;}
  .topbar-right{display:none;}
  .topbar-left span:last-child{display:none;}
  .brand{font-size:17px;}
  .page-hero{min-height:240px;padding:38px 0 34px;}
  .page-hero h1{font-size:26px;}
  .hero-sub{font-size:15px;}
  .hero-stats{gap:14px 0;}
  .hero-stats div{padding-right:18px;margin-right:18px;min-width:88px;}
  .hero-stats strong{font-size:17px;}
  .section{padding:44px 0;}
  .section-head h2,.section-head-row h2{font-size:21px;}
  .cta-inner h2{font-size:21px;}
  .card-media img{height:172px;}
}

@media screen and (max-width:575px){
  .std-grid{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .steps{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 28px;}
  .footer-col{padding:0 !important;border-left:0 !important;}
  .footer-col + .footer-col{border-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:24px !important;}
  .cta-actions .btn{width:100%;}
  .back-top{right:16px;bottom:18px;}
  ul.accordion li.accordion-item .accordion-title{font-size:15px;padding:17px 40px 17px 12px;}
}

@media print{
  .site-header,.cta-band,.back-top,.nav-drawer,.drawer-overlay{display:none;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --hth-blue:#1D5A9E;
  --hth-blue-dark:#143F70;
  --hth-blue-soft:#E8F0FA;
  --hth-amber:#D97A22;
  --hth-teal:#2F9E8F;
  --hth-bg:#F5F7FA;
  --hth-panel:#FFFFFF;
  --hth-band:#EEF3F9;
  --hth-text:#1B2430;
  --hth-text-2:#5C6B7A;
  --hth-text-3:#8A97A6;
  --hth-line:#E2E8F0;
  --hth-line-soft:#EDF1F6;
  --r-card:14px;
  --r-btn:8px;
  --r-input:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh:0 1px 2px rgba(20,40,70,.05),0 8px 24px rgba(20,40,70,.06);
  --sh-hover:0 2px 4px rgba(20,40,70,.06),0 16px 36px rgba(20,40,70,.10);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--hth-text);
  background:var(--hth-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--hth-blue);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--hth-amber)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--hth-blue);outline-offset:2px;box-shadow:0 0 0 4px rgba(29,90,158,.16);border-radius:4px}
.hth-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-band{background:var(--hth-band)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:28px;line-height:1.3;font-weight:700}
.section-head p{font-size:14px;color:var(--hth-text-2);margin-top:6px}
.text-link{font-size:14px;font-weight:600;color:var(--hth-blue);display:inline-flex;align-items:center;gap:6px}
.text-link i{transition:transform var(--ease)}
.text-link:hover i{transform:translateX(4px)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--hth-blue-dark);color:#fff;font-size:13px;height:36px}
.topbar .hth-container{display:flex;align-items:center;justify-content:space-between;height:100%}
.topbar-left{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.86)}
.topbar-left .domain{font-weight:600;color:#fff;letter-spacing:.4px}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45)}
.topbar-right{display:flex;align-items:center;gap:20px}
.topbar-right a{color:rgba(255,255,255,.9);font-size:13px;display:inline-flex;align-items:center;gap:6px}
.topbar-right a:hover{color:#fff;text-decoration:underline}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:50}
.main-nav{background:#fff;border-bottom:1px solid var(--hth-line);height:68px}
.main-nav .hth-container{display:flex;align-items:center;height:100%;gap:28px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--hth-text);letter-spacing:.4px;flex:0 0 auto}
.brand:hover{color:var(--hth-text)}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--hth-blue-soft);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:20px;height:20px}
.nav-list{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav-list li a{display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;color:var(--hth-text-2);border-radius:var(--r-btn);position:relative;white-space:nowrap}
.nav-list li a:hover{color:var(--hth-blue);background:var(--hth-blue-soft)}
.nav-list li a.active{color:var(--hth-blue);font-weight:600}
.nav-list li a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:2px;background:var(--hth-blue)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--hth-line);color:var(--hth-blue);font-size:17px;align-items:center;justify-content:center}
.nav-toggle:hover{background:var(--hth-blue-soft)}
.nav-mask{display:none}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;font-size:14px;font-weight:600;border-radius:var(--r-btn);border:1px solid transparent;transition:all var(--ease);white-space:nowrap}
.btn-primary{background:var(--hth-blue);color:#fff}
.btn-primary:hover{background:var(--hth-blue-dark);color:#fff}
.btn-outline{background:#fff;border-color:var(--hth-blue);color:var(--hth-blue)}
.btn-outline:hover{background:var(--hth-blue-soft);color:var(--hth-blue-dark);border-color:var(--hth-blue-dark)}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--hth-blue-dark);border-color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--hth-blue-soft);color:var(--hth-blue);font-size:12px;font-weight:600}
.badge-state{background:rgba(47,158,143,.12);color:var(--hth-teal)}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--hth-line);color:var(--hth-text-2);font-size:13px;font-weight:500}
.tag:hover{background:var(--hth-blue-soft);border-color:var(--hth-blue-soft);color:var(--hth-blue)}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;background-image:linear-gradient(180deg,rgba(20,63,112,.82),rgba(29,90,158,.76)),url(/assets/images/backpic/back-2.png);background-size:cover;background-position:center;color:#fff;padding:48px 0 56px}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.78);display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.9)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{color:rgba(255,255,255,.5)}
.breadcrumb .current{color:#fff;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero .badge{background:rgba(255,255,255,.16);color:#fff}
.article-hero h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:.5px;margin:16px 0 18px;max-width:900px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px 10px;font-size:13px;color:rgba(255,255,255,.82)}
.article-meta .meta-dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.5)}
.article-meta i{font-size:12px;margin-right:5px}

/* ---------- 正文 ---------- */
.article-wrap{background:var(--hth-panel);border-radius:var(--r-card);box-shadow:var(--sh);padding:44px 40px;margin-top:0}
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--hth-text)}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:24px;font-weight:700;line-height:1.35;margin:48px 0 16px;padding-left:16px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:2px;background:var(--hth-blue)}
.article-body h3{font-size:19px;font-weight:600;line-height:1.45;margin:32px 0 12px}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body li{margin-bottom:.5em;line-height:1.85}
.article-body blockquote{background:var(--hth-blue-soft);border-left:4px solid var(--hth-blue);border-radius:0 10px 10px 0;padding:16px 20px;margin:0 0 1.2em;color:#2b3a4d}
.article-body img{border-radius:var(--r-img);margin:24px auto}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.2em;font-size:15px;display:block;overflow-x:auto}
.article-body th{background:var(--hth-blue-soft);color:var(--hth-blue-dark);text-align:left;font-weight:600}
.article-body th,.article-body td{border:1px solid var(--hth-line);padding:10px 14px}
.article-body a{color:var(--hth-blue);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{color:var(--hth-blue-dark);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--hth-line-soft);margin:32px 0}

.article-foot{max-width:780px;margin:40px auto 0;padding-top:28px;border-top:1px solid var(--hth-line-soft)}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.share-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:var(--hth-band);border-radius:var(--r-card);padding:18px 22px}
.share-bar .share-text{font-size:14px;color:var(--hth-text-2)}
.share-bar .share-text strong{display:block;font-size:15px;color:var(--hth-text);margin-bottom:2px}
.share-actions{display:flex;gap:10px;flex-wrap:wrap}
.source-card{max-width:780px;margin:24px auto 0;background:var(--hth-band);border-radius:var(--r-card);padding:20px 22px;display:flex;gap:14px;align-items:flex-start}
.source-avatar{width:48px;height:48px;border-radius:50%;background:var(--hth-blue-soft);color:var(--hth-blue);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex:0 0 auto}
.source-card h3{font-size:15px;font-weight:600;margin-bottom:4px}
.source-card p{font-size:13px;color:var(--hth-text-2);line-height:1.7}

/* ---------- 空态 ---------- */
.empty-state{max-width:780px;margin:0 auto;text-align:center;padding:56px 20px}
.empty-state svg{width:64px;height:64px;margin:0 auto 18px;opacity:.35}
.empty-state h3{font-size:19px;font-weight:600;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--hth-text-2);margin-bottom:22px}

/* ---------- 卡片 ---------- */
.card{background:var(--hth-panel);border:1px solid var(--hth-line);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);height:100%;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D6E2F0}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--hth-blue-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms cubic-bezier(.2,.7,.3,1)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--hth-text-2);line-height:1.7;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:13px;color:var(--hth-text-3);gap:10px}
.card-foot i{color:var(--hth-blue);transition:transform var(--ease)}
.card:hover .card-foot i{transform:translateX(4px);color:var(--hth-amber)}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh);padding:8px 28px}
.faq-item{border-bottom:1px solid var(--hth-line-soft)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 0 20px 0;font-size:16px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:color var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--hth-blue)}
.faq-item summary i{color:var(--hth-text-3);font-size:14px;transition:transform var(--ease)}
.faq-item[open] summary{color:var(--hth-blue-dark);border-left:3px solid var(--hth-blue);padding-left:14px;margin-left:-17px}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--hth-blue)}
.faq-answer{padding:0 0 22px 0;font-size:15px;color:var(--hth-text-2);line-height:1.85;max-width:760px}

/* ---------- CTA ---------- */
.cta-band{background:var(--hth-blue-soft);border-radius:var(--r-card);padding:36px 38px;display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
.cta-band h2{font-size:24px;font-weight:700;line-height:1.35;margin-bottom:8px}
.cta-band p{font-size:14px;color:var(--hth-text-2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;position:relative;z-index:2}
.cta-deco{position:absolute;right:-20px;top:0;height:100%;width:280px;opacity:.5;pointer-events:none}

/* ---------- 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:80;display:none}
.modal.open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(16,28,44,.55)}
.modal-box{position:relative;z-index:2;width:min(460px,92vw);margin:12vh auto 0;background:#fff;border-radius:var(--r-card);padding:26px 26px 24px;box-shadow:var(--sh-hover)}
.modal-box h3{font-size:19px;font-weight:700;margin-bottom:8px}
.modal-box p{font-size:14px;color:var(--hth-text-2);margin-bottom:16px}
.modal-input{width:100%;height:44px;border:1px solid var(--hth-line);border-radius:var(--r-input);padding:0 14px;font-size:14px;color:var(--hth-text);background:var(--hth-bg);margin-bottom:14px;font-family:inherit}
.modal-input:focus{border-color:var(--hth-blue);outline:0;box-shadow:0 0 0 4px rgba(29,90,158,.14);background:#fff}
.modal-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:8px;color:var(--hth-text-3);font-size:15px}
.modal-close:hover{background:var(--hth-band);color:var(--hth-text)}
.modal-foot{display:flex;gap:10px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--hth-blue-dark);color:rgba(255,255,255,.82);margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:0;padding:56px 0 44px}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-col p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:10px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:13px;color:rgba(255,255,255,.75)}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact strong{display:block;font-size:14px;color:#fff;margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;color:rgba(255,255,255,.66)}
.footer-bottom .hth-container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;background:var(--hth-blue);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-hover);opacity:0;visibility:hidden;transition:all var(--ease);z-index:40}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--hth-blue-dark);color:#fff;transform:translateY(-2px)}

/* ---------- 栅格微调 ---------- */
.reco-row.grid-margin-x{margin-left:-12px;margin-right:-12px}
.reco-row.grid-margin-x>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:56px 0}
  .article-hero h1{font-size:32px}
  .article-wrap{padding:34px 26px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:0}
  .footer-col{padding:0 22px 28px;border-left:0}
  .footer-col:nth-child(2n+1){padding-left:0}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-deco{display:none}
}
@media (max-width:767px){
  .topbar-right{display:none}
  .main-nav{height:60px}
  .nav-list{position:fixed;top:0;right:0;width:280px;max-width:84vw;height:100%;background:#fff;flex-direction:column;align-items:stretch;gap:2px;padding:76px 20px 24px;transform:translateX(105%);transition:transform 240ms cubic-bezier(.2,.7,.3,1);z-index:70;box-shadow:-12px 0 32px rgba(20,40,70,.14);overflow-y:auto}
  .nav-list.open{transform:translateX(0)}
  .nav-list li a{padding:13px 14px;font-size:15px;border-radius:var(--r-btn)}
  .nav-list li a.active::after{display:none}
  .nav-list li a.active{background:var(--hth-blue-soft)}
  .nav-toggle{display:inline-flex}
  .nav-mask{display:block;position:fixed;inset:0;background:rgba(16,28,44,.45);opacity:0;visibility:hidden;transition:all var(--ease);z-index:65}
  .nav-mask.show{opacity:1;visibility:visible}
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:24px}
  .section-head h2{font-size:21px}
  .article-hero{padding:34px 0 40px}
  .article-hero h1{font-size:26px;line-height:1.32}
  .article-wrap{padding:26px 18px}
  .article-body{font-size:15px;line-height:1.85}
  .article-body h2{font-size:20px;margin-top:36px}
  .article-body h3{font-size:17px}
  .faq-list{padding:4px 18px}
  .cta-band{padding:26px 20px}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 28px}
  .footer-col{padding:0 0 24px}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
}
@media (max-width:575px){
  .hth-container{padding:0 16px}
  .article-hero h1{font-size:23px}
  .article-wrap{padding:22px 14px}
  .share-bar{padding:16px}
  .share-actions{width:100%}
  .share-actions .btn{flex:1 1 auto}
  .breadcrumb{font-size:12px}
  .empty-state{padding:40px 8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .card:hover{transform:none}
  .card:hover .card-media img{transform:none}
}

/* roulang page: category3 */
:root{
  --hth-blue:#1D5A9E;
  --hth-blue-dark:#143F70;
  --hth-blue-light:#E8F0FA;
  --amber:#D97A22;
  --teal:#2F9E8F;
  --bg:#F5F7FA;
  --panel:#FFFFFF;
  --band:#EEF3F9;
  --text:#1B2430;
  --text-2:#5C6B7A;
  --text-3:#8A97A6;
  --border:#E2E8F0;
  --line:#EDF1F6;
  --red:#C0392B;
  --r-card:14px;
  --r-btn:8px;
  --r-input:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,40,70,.05),0 8px 24px rgba(20,40,70,.06);
  --sh-2:0 2px 4px rgba(20,40,70,.06),0 16px 36px rgba(20,40,70,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans 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:1.75;
  color:var(--text);
  background:var(--bg);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--hth-blue);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--amber);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--hth-blue);outline-offset:2px;box-shadow:0 0 0 4px rgba(29,90,158,.15);}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}
.hth-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* 顶部信息条 */
.topbar{height:36px;background:var(--hth-blue-dark);color:#fff;font-size:13px;}
.topbar .hth-container{display:flex;align-items:center;justify-content:space-between;height:100%;}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;white-space:nowrap;}
.topbar .domain{letter-spacing:.4px;opacity:.92;}
.topbar .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.5);}
.topbar a{color:rgba(255,255,255,.86);}
.topbar a:hover{color:#fff;text-decoration:underline;}
.topbar i{margin-right:6px;}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;}
.main-nav{background:var(--panel);border-bottom:1px solid var(--border);box-shadow:0 1px 2px rgba(20,40,70,.04);}
.main-nav .hth-container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--hth-blue-dark);letter-spacing:.5px;}
.brand:hover{color:var(--hth-blue-dark);}
.brand-mark{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:10px;background:var(--hth-blue-light);}
.brand-mark svg{width:20px;height:20px;}
.nav-list{display:flex;align-items:center;gap:26px;margin:0;}
.nav-list a{position:relative;display:inline-block;padding:22px 0;font-size:15px;font-weight:600;color:var(--text-2);}
.nav-list a::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:3px;border-radius:2px;background:var(--hth-blue);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);}
.nav-list a:hover{color:var(--hth-blue);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a.active{color:var(--hth-blue);}
.nav-list a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:var(--r-btn);background:#fff;color:var(--hth-blue-dark);font-size:17px;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:14px;font-weight:600;border:1px solid transparent;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);}
.btn-primary{background:var(--hth-blue);color:#fff;}
.btn-primary:hover{background:var(--hth-blue-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-outline{background:#fff;color:var(--hth-blue);border-color:var(--hth-blue);}
.btn-outline:hover{background:var(--hth-blue-light);color:var(--hth-blue);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(15,25,40,.5);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s var(--ease);z-index:80;}
.drawer-mask.open{opacity:1;visibility:visible;}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;background:#fff;z-index:90;transform:translateX(100%);transition:transform .24s var(--ease);padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:10px;}
.drawer-head strong{font-size:16px;color:var(--hth-blue-dark);}
.drawer-close{width:36px;height:36px;border:1px solid var(--border);border-radius:var(--r-btn);background:#fff;color:var(--text-2);}
.nav-drawer a{display:block;padding:13px 4px;font-size:15px;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--line);}
.nav-drawer a.active,.nav-drawer a:hover{color:var(--hth-blue);}
.nav-drawer .btn{margin-top:18px;width:100%;}

/* 通用板块 */
.section{padding:72px 0;}
.section.band{background:var(--band);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:28px;font-weight:700;line-height:1.3;color:var(--hth-blue-dark);}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-2);}
.section-head .head-link{font-size:14px;font-weight:600;white-space:nowrap;}
.section-head .head-link i{margin-left:6px;transition:transform .2s var(--ease);}
.section-head .head-link:hover i{transform:translateX(4px);}

/* 面包屑 */
.crumbs{font-size:13px;color:var(--text-3);padding:20px 0 0;}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--hth-blue);}
.crumbs span.sep{margin:0 8px;}
.crumbs span.current{color:var(--hth-blue);}

/* Hero */
.hero{position:relative;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;border-radius:0 0 var(--r-card) var(--r-card);overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(20,63,112,.88) 0%,rgba(29,90,158,.78) 58%,rgba(29,90,158,.7) 100%);}
.hero .hth-container{position:relative;z-index:1;padding-top:56px;padding-bottom:56px;}
.hero-inner{max-width:660px;color:#fff;}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);font-size:13px;font-weight:600;letter-spacing:.4px;}
.hero h1{margin-top:18px;font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.5px;color:#fff;}
.hero p.lead{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.9);max-width:560px;}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-strip{margin-top:38px;display:flex;flex-wrap:wrap;gap:0;border-top:1px solid rgba(255,255,255,.24);padding-top:20px;}
.hero-strip .item{padding-right:34px;margin-right:34px;border-right:1px solid rgba(255,255,255,.2);}
.hero-strip .item:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-strip .num{font-size:20px;font-weight:700;color:#fff;}
.hero-strip .txt{font-size:13px;color:rgba(255,255,255,.78);margin-top:2px;}

/* 概览卡 */
.stat-row{margin-bottom:34px;}
.stat-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px 22px 20px;height:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat-card .num{font-size:20px;font-weight:700;color:var(--amber);letter-spacing:.5px;}
.stat-card h3{margin-top:8px;font-size:17px;font-weight:600;color:var(--hth-blue-dark);}
.stat-card p{margin-top:8px;font-size:14px;color:var(--text-2);}

/* 时间轴 */
.timeline{position:relative;padding-left:0;}
.timeline::before{content:"";position:absolute;left:14px;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--hth-blue-light);}
.tl-item{position:relative;padding-left:56px;padding-bottom:30px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:6px;top:8px;width:19px;height:19px;border-radius:50%;background:#fff;border:3px solid var(--hth-blue);box-shadow:0 0 0 4px rgba(29,90,158,.08);}
.tl-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px 24px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#d5e1f0;}
.tl-top{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.tl-num{font-size:20px;font-weight:700;color:var(--amber);letter-spacing:.5px;}
.tl-time{font-size:13px;color:var(--text-3);white-space:nowrap;}
.tl-card h3{margin-top:6px;font-size:19px;font-weight:600;line-height:1.45;color:var(--hth-blue-dark);}
.tl-card p{margin-top:8px;font-size:14.5px;color:var(--text-2);}
.tl-tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--hth-blue-light);color:var(--hth-blue);font-size:13px;font-weight:600;}
.badge-ok{background:rgba(47,158,143,.12);color:var(--teal);}
.badge-warn{background:rgba(217,122,34,.12);color:var(--amber);}

/* 图文区块 */
.split{display:flex;align-items:center;gap:48px;}
.split .figure{flex:1 1 48%;}
.split .figure img{width:100%;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--sh-1);}
.split .text{flex:1 1 52%;}
.split h2{font-size:28px;font-weight:700;line-height:1.3;color:var(--hth-blue-dark);}
.split p.desc{margin-top:14px;font-size:15.5px;color:var(--text-2);}
.step-list{margin-top:22px;}
.step-list li{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line);}
.step-list li:first-child{border-top:0;padding-top:0;}
.step-list .idx{flex:0 0 auto;width:30px;height:30px;border-radius:10px;background:var(--hth-blue-light);color:var(--hth-blue);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.step-list .txt strong{display:block;font-size:15.5px;font-weight:600;color:var(--text);}
.step-list .txt span{display:block;margin-top:4px;font-size:14px;color:var(--text-2);}

/* FAQ */
.faq-list{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;text-align:left;padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);position:relative;transition:background .2s var(--ease),color .2s var(--ease);}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;background:var(--hth-blue);transform:scaleY(0);transform-origin:top;transition:transform .2s var(--ease);}
.faq-q:hover{background:#fafcfe;color:var(--hth-blue);}
.faq-q i{color:var(--hth-blue);font-size:14px;transition:transform .2s var(--ease);}
.faq-item.open .faq-q{color:var(--hth-blue);}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-a p{padding:0 24px 22px 24px;font-size:14.5px;color:var(--text-2);}

/* 分类编号卡 */
.cat-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#d5e1f0;}
.cat-card .num{font-size:20px;font-weight:700;color:var(--amber);letter-spacing:.5px;}
.cat-card h3{margin-top:10px;font-size:19px;font-weight:600;color:var(--hth-blue-dark);}
.cat-card p{margin-top:8px;font-size:14px;color:var(--text-2);flex:1 1 auto;}
.cat-card .foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.cat-card .foot i{color:var(--amber);transition:transform .2s var(--ease);}
.cat-card:hover .foot i{transform:translateX(4px);}

/* CTA */
.cta-band{position:relative;background:var(--hth-blue-light);border:1px solid #d5e1f0;border-radius:var(--r-card);padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;overflow:hidden;}
.cta-band .cta-text h2{font-size:23px;font-weight:700;color:var(--hth-blue-dark);}
.cta-band .cta-text p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:620px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
.cta-nodes{position:absolute;right:-10px;top:12px;opacity:.4;pointer-events:none;}

/* 分享弹窗 */
.reveal{border:0;border-radius:var(--r-card);box-shadow:var(--sh-2);padding:28px;}
.reveal h3{font-size:19px;font-weight:700;color:var(--hth-blue-dark);}
.reveal p{margin-top:10px;font-size:14.5px;color:var(--text-2);}
.reveal .share-links{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;}
.reveal .close-button{color:var(--text-3);}

/* 页脚 */
.site-footer{background:var(--hth-blue-dark);color:rgba(255,255,255,.78);margin-top:0;}
.site-footer .hth-container{padding-top:60px;padding-bottom:44px;}
.footer-grid{display:flex;flex-wrap:wrap;gap:0;}
.footer-col{flex:1 1 25%;min-width:200px;padding:0 28px;border-left:1px solid rgba(255,255,255,.12);}
.footer-col:first-child{border-left:0;padding-left:0;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;letter-spacing:.5px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);}
.footer-col p{margin-top:12px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:13.5px;color:rgba(255,255,255,.76);}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact strong{display:block;font-size:14px;color:#fff;}
.footer-contact p{margin-top:8px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);}
.footer-bottom .hth-container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:18px;padding-bottom:18px;font-size:13px;color:rgba(255,255,255,.6);}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;border:0;background:var(--hth-blue);color:#fff;font-size:16px;box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease),background .2s var(--ease);z-index:70;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--hth-blue-dark);}

/* 栅格间距覆盖 */
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.grid-x.grid-margin-y{margin-top:-12px;margin-bottom:-12px;}
.grid-x.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px;}

/* 空态 */
.empty{text-align:center;padding:54px 24px;background:#fff;border:1px dashed var(--border);border-radius:var(--r-card);}
.empty i{font-size:30px;color:rgba(29,90,158,.3);}
.empty p{margin-top:14px;font-size:14.5px;color:var(--text-2);}
.empty .btn{margin-top:18px;}

/* 响应式 */
@media (max-width:1023px){
  .nav-list{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-actions .btn{display:none;}
  .hero h1{font-size:32px;}
  .split{flex-direction:column;gap:30px;}
  .split .figure,.split .text{flex:1 1 100%;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-col{flex:1 1 48%;border-left:0;padding:0 0 28px;}
  .footer-col:nth-child(2n){padding-left:24px;}
}
@media (max-width:767px){
  .section{padding:44px 0;}
  .hth-container{padding:0 16px;}
  .topbar-right a:first-child{display:none;}
  .hero .hth-container{padding-top:40px;padding-bottom:40px;}
  .hero h1{font-size:26px;}
  .hero p.lead{font-size:15px;}
  .hero-strip .item{padding-right:20px;margin-right:20px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:21px;}
  .tl-item{padding-left:44px;}
  .timeline::before{left:11px;}
  .tl-item::before{left:4px;width:17px;height:17px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px 18px;}
  .cta-band{padding:24px 20px;}
  .footer-col{flex:1 1 100%;padding:0 0 26px!important;}
  .footer-bottom .hth-container{flex-direction:column;align-items:flex-start;gap:6px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:575px){
  .hero h1{font-size:24px;}
  .hero-strip{gap:16px 0;}
  .hero-strip .item{width:50%;border-right:0;margin-right:0;padding-right:0;}
  .hero-actions .btn{width:100%;}
  .cat-card .foot{font-size:12px;}
}

/* roulang page: category2 */
:root{
  --hth-blue:#1D5A9E;
  --hth-blue-dark:#143F70;
  --hth-blue-light:#E8F0FA;
  --amber:#D97A22;
  --teal:#2F9E8F;
  --bg:#F5F7FA;
  --panel:#FFFFFF;
  --band:#EEF3F9;
  --text:#1B2430;
  --text-2:#5C6B7A;
  --text-3:#8A97A6;
  --border:#E2E8F0;
  --line:#EDF1F6;
  --r-card:14px;
  --r-btn:8px;
  --r-input:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,40,70,.05), 0 8px 24px rgba(20,40,70,.06);
  --shadow-hover:0 2px 4px rgba(20,40,70,.06), 0 16px 36px rgba(20,40,70,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--hth-blue);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--hth-blue-dark)}
button{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--hth-blue);outline-offset:2px;box-shadow:0 0 0 4px rgba(29,90,158,.15);border-radius:6px}
h1{font-size:40px;font-weight:700;line-height:1.25;letter-spacing:.5px}
h2{font-size:28px;font-weight:700;line-height:1.3}
h3{font-size:19px;font-weight:600;line-height:1.45}
p{color:var(--text-2)}
.hth-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-band{background:var(--band)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:8px}
.section-head h2{color:var(--text)}
.section-sub{font-size:15px;color:var(--text-2);margin-top:8px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--hth-blue);white-space:nowrap}
.text-link i{transition:transform .2s var(--ease)}
.text-link:hover i{transform:translateX(4px)}
.rule{height:1px;background:var(--border);border:0;margin:24px 0 32px}

/* 顶部信息条 */
.topbar{background:var(--hth-blue-dark);color:#fff;font-size:13px;min-height:36px;display:flex;align-items:center}
.topbar .hth-container{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px}
.topbar-left .domain{font-weight:600;letter-spacing:.4px;color:#fff}
.topbar .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.5);display:inline-block}
.topbar a{color:rgba(255,255,255,.86);display:inline-flex;align-items:center;gap:6px;font-size:13px}
.topbar a:hover{color:#fff;text-decoration:underline}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff}
.main-nav{background:#fff;border-bottom:1px solid var(--border);min-height:68px;display:flex;align-items:center}
.main-nav .hth-container{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--text);letter-spacing:.5px}
.brand:hover{color:var(--hth-blue)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--hth-blue-light);display:flex;align-items:center;justify-content:center;flex:none}
.brand-mark svg{width:21px;height:21px}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none}
.nav-list a{display:inline-block;padding:10px 11px 14px;font-size:14px;font-weight:600;color:var(--text-2);position:relative;border-radius:8px 8px 0 0}
.nav-list a:hover{color:var(--hth-blue);background:var(--hth-blue-light)}
.nav-list a.active{color:var(--hth-blue)}
.nav-list a.active::after{content:"";position:absolute;left:11px;right:11px;bottom:0;height:3px;border-radius:2px;background:var(--hth-blue)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);background:#fff;border-radius:var(--r-btn);color:var(--hth-blue);cursor:pointer;align-items:center;justify-content:center;font-size:17px}
.nav-toggle:hover{background:var(--hth-blue-light);border-color:var(--hth-blue)}
.nav-mask{position:fixed;inset:0;background:rgba(18,30,45,.45);opacity:0;pointer-events:none;transition:opacity .2s var(--ease);z-index:70}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;font-size:14px;font-weight:600;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);white-space:nowrap}
.btn-primary{background:var(--hth-blue);color:#fff}
.btn-primary:hover{background:var(--hth-blue-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-outline{background:#fff;border-color:var(--hth-blue);color:var(--hth-blue)}
.btn-outline:hover{background:var(--hth-blue-light);color:var(--hth-blue-dark);border-color:var(--hth-blue-dark)}
.btn-ghost{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--hth-blue-dark);transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 14px;font-size:13px}
.btn:active{transform:translateY(0)}

/* Hero */
.page-hero{position:relative;min-height:338px;display:flex;align-items:center;color:#fff;overflow:hidden;background:url('/assets/images/backpic/back-2.png') center center/cover no-repeat}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(102deg,rgba(20,63,112,.82) 0%,rgba(29,90,158,.76) 58%,rgba(29,90,158,.68) 100%)}
.page-hero .hth-container{position:relative;z-index:1;padding-top:44px;padding-bottom:44px;width:100%}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .current{color:#fff;font-weight:600}
.crumb .slash{color:rgba(255,255,255,.45)}
.page-hero h1{color:#fff;max-width:760px}
.hero-sub{margin-top:16px;max-width:660px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86)}
.hero-stats{display:flex;align-items:center;gap:22px;margin-top:26px;flex-wrap:wrap}
.hero-stats .stat{display:flex;flex-direction:column;gap:2px}
.hero-stats .stat strong{font-size:20px;font-weight:700;color:#fff;line-height:1.3}
.hero-stats .stat span{font-size:13px;color:rgba(255,255,255,.72)}
.hero-stats .divider{width:1px;height:32px;background:rgba(255,255,255,.28)}

/* 标签条 */
.tagbar{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin-top:26px}
.tag{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--border);background:#fff;color:var(--text-2);font-size:14px;font-weight:600;cursor:default;transition:all .2s var(--ease)}
.tag:hover{border-color:var(--hth-blue);color:var(--hth-blue);background:var(--hth-blue-light)}
.tag.is-active{background:var(--hth-blue);border-color:var(--hth-blue);color:#fff}
.tag-note{font-size:13px;color:var(--text-3);margin-top:12px}

/* 条目大卡 */
.entry-grid{margin-top:32px}
.entry-cell{display:flex}
.entry-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;width:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D2E0F2}
.entry-cover{display:block;position:relative;aspect-ratio:16/10;background:var(--hth-blue-light);overflow:hidden}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.entry-card:hover .entry-cover img{transform:scale(1.03)}
.entry-cover .cover-tag{position:absolute;left:14px;top:14px;background:rgba(20,63,112,.86);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill)}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.entry-body h3{color:var(--text)}
.entry-body h3 a{color:var(--text)}
.entry-body h3 a:hover{color:var(--hth-blue)}
.entry-desc{font-size:15px;line-height:1.78;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.entry-tags{display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--hth-blue-light);color:var(--hth-blue);font-size:13px;font-weight:600}
.badge-status{background:#E4F3F0;color:var(--teal)}
.entry-meta{display:flex;align-items:center;gap:8px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.entry-meta .sep{color:#C7D2DE}
.entry-meta .go{margin-left:auto;color:var(--amber);font-size:14px;transition:transform .2s var(--ease)}
.entry-card:hover .entry-meta .go{transform:translateX(4px)}

/* 浏览路径 */
.path-grid{margin-top:32px}
.path-cell{display:flex}
.path-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow);width:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.path-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.path-num{font-size:20px;font-weight:700;color:var(--amber);letter-spacing:1px}
.path-card h3{margin-top:12px;color:var(--text)}
.path-card p{margin-top:10px;font-size:15px;line-height:1.78}

/* 字段说明 */
.field-grid{margin-top:28px}
.field-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:20px 22px;height:100%}
.field-item strong{display:block;font-size:15px;color:var(--text);margin-bottom:6px}
.field-item span{font-size:14px;color:var(--text-2);line-height:1.7}

/* FAQ */
.faq-wrap{max-width:880px;margin-top:12px}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:first-child{border-top:1px solid var(--border)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:none;border:0;padding:20px 0 20px 16px;font-size:16px;font-weight:600;color:var(--text);text-align:left;cursor:pointer;position:relative;line-height:1.6}
.faq-q::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;background:var(--hth-blue);opacity:0;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-q:hover{color:var(--hth-blue)}
.faq-q i{color:var(--text-3);font-size:14px;transition:transform .2s var(--ease);flex:none}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--hth-blue)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.faq-item.is-open .faq-a{max-height:460px}
.faq-a p{padding:0 0 20px 16px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:780px}

/* 相关分类编号卡 */
.index-grid{margin-top:32px}
.index-cell{display:flex}
.index-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow);width:100%;display:flex;flex-direction:column;gap:10px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.index-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D2E0F2}
.index-num{font-size:20px;font-weight:700;color:var(--amber);letter-spacing:1px}
.index-card h3{color:var(--text)}
.index-card h3 a{color:var(--text)}
.index-card h3 a:hover{color:var(--hth-blue)}
.index-card p{font-size:14px;line-height:1.75}
.index-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.index-foot i{color:var(--amber);transition:transform .2s var(--ease)}
.index-card:hover .index-foot i{transform:translateX(4px)}

/* CTA */
.cta-band{position:relative;overflow:hidden;background:var(--hth-blue-light);border:1px solid #D6E4F5;border-radius:var(--r-card);padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:24px;color:var(--hth-blue-dark)}
.cta-band p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.cta-deco{position:absolute;right:-20px;top:50%;transform:translateY(-50%);opacity:.28;pointer-events:none}

/* 页脚 */
.site-footer{background:var(--hth-blue-dark);color:rgba(255,255,255,.78);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 42px}
.footer-col{min-width:0}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.14);padding-left:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:20px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.site-footer p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.75;margin-bottom:10px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.76);font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact strong{display:block;color:#fff;font-size:14px;font-weight:600;margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:18px 0;font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom .hth-container{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;background:var(--hth-blue);color:#fff;border:0;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .22s var(--ease),transform .22s var(--ease),background-color .2s var(--ease);z-index:50;box-shadow:var(--shadow-hover);font-size:16px}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--hth-blue-dark);transform:translateY(-2px)}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .entry-card:hover,.path-card:hover,.index-card:hover,.btn:hover{transform:none !important}
}

@media (max-width:1023px){
  h1{font-size:32px}
  h2{font-size:24px}
  .section{padding:56px 0}
  .nav-list a{padding:10px 8px 14px;font-size:13px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .footer-col:nth-child(3){border-left:1px solid rgba(255,255,255,.14);padding-left:32px}
  .footer-col:nth-child(4){border-left:1px solid rgba(255,255,255,.14);padding-left:32px}
}

@media (max-width:767px){
  h1{font-size:26px}
  h2{font-size:21px}
  h3{font-size:17px}
  body{font-size:15px}
  .hth-container{padding:0 16px}
  .section{padding:44px 0}
  .topbar{font-size:12px;min-height:34px}
  .topbar-left span:not(.domain):not(.dot){display:none}
  .topbar-right a:first-child{display:none}
  .main-nav{min-height:60px}
  .nav-toggle{display:flex}
  .nav-list{position:fixed;top:0;right:0;height:100vh;width:min(84vw,320px);background:#fff;flex-direction:column;align-items:stretch;gap:2px;padding:78px 18px 24px;transform:translateX(102%);transition:transform .24s var(--ease);z-index:80;box-shadow:-10px 0 34px rgba(20,40,70,.14);overflow-y:auto}
  .main-nav.is-open .nav-list{transform:translateX(0)}
  .nav-list li{width:100%}
  .nav-list a{display:block;padding:13px 14px;border-radius:var(--r-btn);font-size:15px}
  .nav-list a.active{background:var(--hth-blue-light)}
  .nav-list a.active::after{display:none}
  body.nav-open{overflow:hidden}
  body.nav-open .nav-mask{opacity:1;pointer-events:auto}
  .nav-actions .btn-sm{display:none}
  .page-hero{min-height:240px}
  .page-hero .hth-container{padding-top:32px;padding-bottom:32px}
  .hero-sub{font-size:15px}
  .hero-stats{gap:16px}
  .hero-stats .stat strong{font-size:17px}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:140px}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 30px}
  .footer-col:nth-child(3),.footer-col:nth-child(4){border-left:0;padding-left:0}
  .to-top{right:16px;bottom:20px}
}

@media (max-width:520px){
  h1{font-size:23px;line-height:1.3}
  .entry-body{padding:18px 18px 20px}
  .entry-desc{-webkit-line-clamp:4}
  .hero-stats .divider{display:none}
  .hero-stats{flex-direction:column;align-items:flex-start;gap:12px}
  .tag{height:32px;padding:0 13px;font-size:13px}
}

/* roulang page: category4 */
:root{
  --hth-blue:#1D5A9E;
  --hth-blue-dark:#143F70;
  --hth-blue-light:#E8F0FA;
  --hth-amber:#D97A22;
  --hth-green:#2F9E8F;
  --bg:#F5F7FA;
  --panel:#FFFFFF;
  --band:#EEF3F9;
  --text:#1B2430;
  --text-2:#5C6B7A;
  --text-3:#8A97A6;
  --line:#E2E8F0;
  --line-2:#EDF1F6;
  --r-card:14px;
  --r-btn:8px;
  --r-input:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,40,70,.05),0 8px 24px rgba(20,40,70,.06);
  --shadow-hover:0 2px 4px rgba(20,40,70,.06),0 16px 36px rgba(20,40,70,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:72px;
}
*,*::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 SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--hth-blue);text-decoration:none;transition:color .2s var(--ease),box-shadow .2s var(--ease);}
a:hover{color:var(--hth-amber);}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.3;}
p{margin:0;}
:focus-visible{outline:2px solid var(--hth-blue);outline-offset:2px;box-shadow:0 0 0 4px rgba(29,90,158,.16);border-radius:4px;}
::selection{background:var(--hth-blue-light);color:var(--hth-blue-dark);}

.hth-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section.band{background:var(--band);}
.section.white{background:var(--panel);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head h2{font-size:28px;letter-spacing:.3px;}
.section-head p{color:var(--text-2);font-size:15px;margin-top:8px;max-width:720px;}
.text-link{font-size:14px;font-weight:600;color:var(--hth-blue);display:inline-flex;align-items:center;gap:6px;}
.text-link i{transition:transform .2s var(--ease);}
.text-link:hover i{transform:translateX(4px);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--hth-blue);background:var(--hth-blue-light);border-radius:var(--r-pill);padding:6px 14px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--hth-blue-dark);color:#fff;font-size:13px;height:36px;display:flex;align-items:center;}
.topbar .hth-container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.86);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-left .domain{color:#fff;font-weight:600;letter-spacing:.4px;}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.5);flex:none;}
.topbar-right{display:flex;align-items:center;gap:20px;}
.topbar-right a{color:rgba(255,255,255,.86);font-size:13px;}
.topbar-right a:hover{color:#fff;text-decoration:underline;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.main-nav{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(20,40,70,.04);}
.main-nav .hth-container{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--hth-blue-dark);letter-spacing:.5px;flex:none;}
.brand:hover{color:var(--hth-blue);}
.brand-mark{width:32px;height:32px;border-radius:var(--r-btn);background:var(--hth-blue-light);display:flex;align-items:center;justify-content:center;flex:none;}
.brand-mark svg{width:20px;height:20px;}
.nav-list{display:flex;align-items:center;gap:6px;flex:1;flex-wrap:wrap;}
.nav-list a{display:block;padding:8px 12px;font-size:15px;font-weight:600;color:var(--text-2);border-radius:var(--r-btn);position:relative;}
.nav-list a:hover{color:var(--hth-blue);background:var(--hth-blue-light);}
.nav-list a.active{color:var(--hth-blue);}
.nav-list a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:2px;background:var(--hth-blue);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);color:var(--hth-blue-dark);font-size:17px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;border-radius:var(--r-btn);padding:12px 22px;border:1px solid transparent;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);line-height:1.2;}
.btn-primary{background:var(--hth-blue);color:#fff;box-shadow:0 1px 2px rgba(20,40,70,.12);}
.btn-primary:hover{background:var(--hth-blue-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-outline{background:#fff;color:var(--hth-blue);border-color:var(--hth-blue);}
.btn-outline:hover{background:var(--hth-blue-light);color:var(--hth-blue-dark);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn:active{transform:translateY(0);}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.cat-hero{position:relative;background-image:linear-gradient(100deg,rgba(20,63,112,.86),rgba(29,90,158,.72)),url("/assets/images/backpic/back-3.png");background-size:cover;background-position:center;color:#fff;min-height:330px;display:flex;align-items:center;}
.cat-hero .hth-container{max-width:1200px;}
.cat-hero-inner{max-width:660px;padding:56px 0;}
.cat-hero .eyebrow{background:rgba(255,255,255,.16);color:#fff;}
.cat-hero h1{color:#fff;font-size:40px;line-height:1.25;letter-spacing:.5px;margin:18px 0 16px;}
.cat-hero p{color:rgba(255,255,255,.9);font-size:17px;line-height:1.8;max-width:600px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:28px;border-top:1px solid rgba(255,255,255,.28);padding-top:18px;}
.hero-stats div{padding-right:26px;margin-right:26px;border-right:1px solid rgba(255,255,255,.24);}
.hero-stats div:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-stats strong{display:block;font-size:20px;font-weight:700;color:#fff;}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.78);}
.breadcrumb{font-size:13px;color:var(--text-3);padding:18px 0 0;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--hth-blue);}
.breadcrumb .sep{margin:0 6px;color:#C3CDD8;}
.breadcrumb .current{color:var(--hth-blue);font-weight:600;}

/* ---------- 图文交替 ---------- */
.zigzag{display:grid;gap:56px;}
.zigzag-row{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
.zigzag-media img{border-radius:var(--r-card);width:100%;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--shadow);}
.zigzag-num{font-size:20px;font-weight:700;color:var(--hth-amber);letter-spacing:1px;}
.zigzag-body h3{font-size:19px;margin:10px 0 12px;}
.zigzag-body p{color:var(--text-2);font-size:16px;}
.check-list{margin-top:16px;display:grid;gap:10px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text);align-items:flex-start;}
.check-list i{color:var(--hth-green);margin-top:5px;font-size:13px;flex:none;}
.zigzag-body .mini-meta{margin-top:16px;font-size:13px;color:var(--text-3);}

/* ---------- 对照表 ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--r-card);box-shadow:var(--shadow);background:#fff;}
table.compare{width:100%;border-collapse:collapse;min-width:640px;font-size:15px;}
table.compare th,table.compare td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line-2);vertical-align:top;}
table.compare thead th{background:var(--hth-blue-light);color:var(--hth-blue-dark);font-size:15px;font-weight:700;border-bottom:1px solid var(--line);}
table.compare tbody th{font-weight:600;color:var(--text-2);background:#FBFCFE;width:150px;}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover td{background:#F8FBFF;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;background:none;border:0;padding:20px 44px 20px 16px;text-align:left;font-size:16px;font-weight:600;color:var(--text);position:relative;transition:color .2s var(--ease),background .2s var(--ease);border-left:3px solid transparent;}
.faq-q:hover{color:var(--hth-blue);background:#FBFCFE;}
.faq-q i{position:absolute;right:16px;top:50%;transform:translateY(-50%);font-size:14px;color:var(--text-3);transition:transform .2s var(--ease),color .2s var(--ease);}
.faq-item.open .faq-q{color:var(--hth-blue);border-left-color:var(--hth-blue);}
.faq-item.open .faq-q i{transform:translateY(-50%) rotate(180deg);color:var(--hth-blue);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-a-inner{padding:0 44px 22px 16px;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.faq-item.open .faq-a{max-height:400px;}

/* ---------- 编号卡 ---------- */
.num-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;display:flex;flex-direction:column;height:100%;box-shadow:var(--shadow);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.num-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFE0F2;}
.num-card .n{font-size:20px;font-weight:700;color:var(--hth-amber);letter-spacing:1px;}
.num-card h3{font-size:19px;margin:10px 0 8px;}
.num-card p{color:var(--text-2);font-size:15px;flex:1;}
.num-card .foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line-2);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.num-card .foot i{color:var(--hth-amber);transition:transform .2s var(--ease);}
.num-card:hover .foot i{transform:translateX(4px);}

/* ---------- 内容卡 ---------- */
.cover-card{background:#fff;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;height:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.cover-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.cover-card img{aspect-ratio:16/10;object-fit:cover;width:100%;}
.cover-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.cover-card h3{font-size:17px;line-height:1.5;}
.cover-card p{color:var(--text-2);font-size:15px;margin-top:10px;flex:1;}
.cover-card .meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line-2);font-size:13px;color:var(--text-3);display:flex;align-items:center;justify-content:space-between;}
.badge{display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);background:var(--hth-blue-light);color:var(--hth-blue);margin-bottom:12px;}
.badge.green{background:#E4F4F1;color:var(--hth-green);}
.tag-bar{display:flex;flex-wrap:wrap;gap:10px;}
.tag{font-size:13px;font-weight:600;color:var(--hth-blue);background:#fff;border:1px solid var(--line);padding:7px 14px;border-radius:var(--r-pill);transition:all .2s var(--ease);}
.tag:hover{border-color:var(--hth-blue);background:var(--hth-blue-light);}

/* ---------- CTA ---------- */
.cta-band{background:var(--hth-blue-light);border-radius:var(--r-card);padding:36px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;border:1px dashed rgba(29,90,158,.28);pointer-events:none;}
.cta-band h2{font-size:24px;color:var(--hth-blue-dark);}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:8px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- 模态 ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(20,40,70,.55);display:none;align-items:center;justify-content:center;z-index:120;padding:20px;}
.modal-mask.show{display:flex;}
.modal-box{background:#fff;border-radius:var(--r-card);max-width:460px;width:100%;padding:28px;box-shadow:0 24px 60px rgba(20,40,70,.28);}
.modal-box h3{font-size:19px;margin-bottom:10px;}
.modal-box p{color:var(--text-2);font-size:15px;}
.copy-field{margin:18px 0;display:flex;gap:8px;}
.copy-field input{height:44px;border:1px solid var(--line);border-radius:var(--r-input);padding:0 14px;font-size:15px;color:var(--text-2);flex:1;background:#FBFCFE;font-family:inherit;}
.modal-close{position:absolute;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--hth-blue-dark);color:rgba(255,255,255,.82);margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;padding:56px 0;}
.footer-col{padding:0 28px;border-right:1px solid rgba(255,255,255,.14);}
.footer-col:first-child{padding-left:0;}
.footer-col:last-child{border-right:0;padding-right:0;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-col p{font-size:14px;line-height:1.8;margin-bottom:10px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:rgba(255,255,255,.82);font-size:14px;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact strong{display:block;color:#fff;font-size:14px;margin-bottom:8px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:18px 0;font-size:13px;color:rgba(255,255,255,.66);}
.footer-bottom .hth-container{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;}

/* ---------- 返回顶部 ---------- */
#toTop{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;border:0;background:var(--hth-blue);color:#fff;font-size:16px;box-shadow:var(--shadow-hover);opacity:0;visibility:hidden;transform:translateY(8px);transition:all .25s var(--ease);z-index:90;}
#toTop.show{opacity:1;visibility:visible;transform:translateY(0);}
#toTop:hover{background:var(--hth-blue-dark);}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .zigzag-row{grid-template-columns:1.05fr 1fr;gap:56px;}
  .zigzag-row.is-reverse .zigzag-media{order:2;}
  .zigzag-row.is-reverse .zigzag-body{order:1;}
}
@media (min-width:1440px){
  .section{padding:88px 0;}
}
@media (max-width:1023px){
  .cat-hero h1{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(2){border-right:0;}
  .footer-col:nth-child(3){padding-left:0;}
  .footer-col:nth-child(4){padding-right:0;border-right:0;}
}
@media (max-width:767px){
  .hth-container{padding:0 16px;}
  .section{padding:44px 0;}
  .topbar-right{display:none;}
  .topbar-left span:not(.domain){display:none;}
  .main-nav .hth-container{height:60px;gap:12px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-list{position:fixed;top:0;right:0;height:100vh;width:280px;background:#fff;flex-direction:column;align-items:stretch;gap:4px;padding:84px 20px 32px;box-shadow:-12px 0 32px rgba(20,40,70,.16);transform:translateX(102%);transition:transform .25s var(--ease);z-index:110;overflow-y:auto;}
  .nav-list.open{transform:translateX(0);}
  .nav-list a{padding:12px 14px;font-size:16px;}
  .nav-list a.active::after{display:none;}
  .nav-list a.active{background:var(--hth-blue-light);}
  .nav-actions .btn{display:none;}
  .drawer-mask{position:fixed;inset:0;background:rgba(20,40,70,.5);opacity:0;visibility:hidden;transition:all .25s var(--ease);z-index:100;}
  .drawer-mask.show{opacity:1;visibility:visible;}
  .cat-hero{min-height:240px;}
  .cat-hero-inner{padding:40px 0;}
  .cat-hero h1{font-size:26px;}
  .cat-hero p{font-size:15.5px;}
  .hero-stats div{padding-right:16px;margin-right:16px;}
  .section-head h2{font-size:21px;}
  .cta-band{padding:26px 22px;}
  .cta-band h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-col{padding:0;border-right:0;}
  table.compare{font-size:14px;}
  table.compare th,table.compare td{padding:13px 14px;}
  #toTop{right:16px;bottom:16px;}
}
@media (max-width:575px){
  body{font-size:15px;}
  .cat-hero h1{font-size:26px;}
  .zigzag-body h3{font-size:17px;}
  .hero-stats strong{font-size:17px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}