/* roulang page: index */
:root{
  --primary:#1C5B9B;
  --primary-dark:#14456F;
  --primary-light:#E8F0FA;
  --amber:#E4A23C;
  --success:#2E8B62;
  --warning:#C4622D;
  --danger:#B23A3A;
  --ink:#0F1D2E;
  --text-2:#4A5A70;
  --text-3:#8194A8;
  --line:#E3E9F2;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow-1:0 2px 6px rgba(15,29,46,.04), 0 12px 28px -14px rgba(15,29,46,.14);
  --shadow-2:0 4px 10px rgba(15,29,46,.06), 0 20px 40px -18px rgba(15,29,46,.22);
  --nav-h:118px;
  --bs-primary:#1C5B9B;
  --bs-body-color:#0F1D2E;
  --bs-body-bg:#F6F8FB;
  --bs-border-color:#E3E9F2;
  --bs-link-color:#1C5B9B;
  --bs-link-hover-color:#14456F;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:1.1rem;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.container-xxl{max-width:1240px;padding-inline:20px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部双层导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(15,29,46,.05);}
.nav-top{height:68px;border-bottom:1px solid var(--line);background:#fff;}
.nav-top-inner{height:68px;display:flex;align-items:center;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--primary);}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.brand-mark svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.7;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.nav-search{flex:1 1 auto;max-width:420px;position:relative;}
.nav-search input{width:100%;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;padding:0 44px 0 14px;font-size:14px;color:var(--ink);transition:border-color .22s ease,box-shadow .22s ease;}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(28,91,155,.12);}
.nav-search button{position:absolute;right:6px;top:6px;width:30px;height:30px;border:0;background:transparent;display:flex;align-items:center;justify-content:center;border-radius:8px;color:var(--text-3);}
.nav-search button:hover{color:var(--primary);background:var(--primary-light);}
.nav-search button svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text-2);display:flex;align-items:center;justify-content:center;transition:all .22s ease;}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light);}
.icon-btn:active{transform:translateY(1px);}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;}
.mobile-search-panel{border-top:1px solid var(--line);background:#fff;}
.mobile-search-panel .inner{padding:12px 20px 16px;}

/* 频道行 */
.channel-bar{height:50px;background:#fff;}
.channel-inner{height:50px;display:flex;align-items:center;gap:8px;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);background:transparent;flex:0 0 auto;transition:all .22s ease;}
.channel-link:hover{background:rgba(28,91,155,.08);color:var(--primary);}
.channel-link.active{background:var(--primary);color:#fff;font-weight:600;}
.channel-link.active:hover{background:var(--primary-dark);color:#fff;}
.channel-link:active{transform:translateY(1px);}

/* ---------- 按钮 ---------- */
.btn{transition:all .22s ease;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:11px 22px;border:1px solid transparent;}
.btn-brand{background:var(--primary);color:#fff;box-shadow:0 8px 18px -10px rgba(28,91,155,.65);}
.btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(20,69,111,.7);}
.btn-brand:active{transform:translateY(0);background:var(--primary-dark);color:#fff;}
.btn-outline-brand{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline-brand:hover{background:rgba(28,91,155,.06);color:var(--primary-dark);border-color:var(--primary-dark);}
.btn-outline-brand:active{background:rgba(28,91,155,.12);}
.btn-sm-brand{padding:8px 16px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;border-bottom:1px solid transparent;padding-bottom:2px;}
.btn-text svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .22s ease;}
.btn-text:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark);}
.btn-text:hover svg{transform:translateX(2px);}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg);}
.hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center right;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.93) 40%,rgba(246,248,251,.62) 68%,rgba(246,248,251,.28) 100%);}
.hero-dots{position:absolute;inset:0;background-image:radial-gradient(rgba(28,91,155,.55) 1px,transparent 1px);background-size:26px 26px;opacity:.06;pointer-events:none;}
.hero-inner{position:relative;z-index:2;padding:76px 0 56px;min-height:560px;display:flex;align-items:center;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);}
.hero h1{font-size:42px;font-weight:700;line-height:1.25;margin:18px 0 14px;max-width:12em;color:var(--ink);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:30em;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-bottom:34px;}
.trust-bar{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:12px 28px;}
.trust-bar li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.trust-bar svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.8;}
.hero-card{background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:24px;backdrop-filter:saturate(120%);}
.hero-card h2{font-size:16px;font-weight:700;margin-bottom:6px;}
.hero-card .hint{font-size:13px;color:var(--text-3);margin-bottom:16px;}
.hero-card ul{list-style:none;padding:0;margin:0;}
.hero-card li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:var(--text-2);}
.hero-card li:first-child{border-top:0;}
.hero-card li span.t{color:var(--ink);font-weight:600;}
.hero-card li span.d{color:var(--primary);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 通用板块 ---------- */
section.block{padding:88px 0;}
.section-head{margin-bottom:40px;}
.sec-title{position:relative;font-size:30px;font-weight:700;line-height:1.35;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--amber);}
.sec-sub{margin-top:12px;color:var(--text-2);font-size:15px;max-width:44em;}
.bg-soft{background:linear-gradient(180deg,#F6F8FB 0%,#EFF4FA 100%);}
.bg-white-block{background:#fff;}

/* 痛点 */
.pain-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.pain-card .idx{font-size:13px;color:var(--amber);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.5px;}
.pain-card h3{font-size:18px;font-weight:600;margin:6px 0 8px;}
.pain-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.figure-box{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);background:var(--primary-light);}
.figure-box img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .22s ease;}
.figure-box:hover img{transform:scale(1.03);}
.figure-cap{font-size:13px;color:var(--text-3);margin-top:12px;}

/* 步骤流 */
.step-item{display:flex;gap:20px;}
.step-rail{flex:0 0 52px;display:flex;flex-direction:column;align-items:center;}
.step-num{width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--primary);font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;box-shadow:var(--shadow-1);}
.step-line{flex:1 1 auto;width:2px;background:var(--line);margin:8px 0;}
.step-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);flex:1 1 auto;}
.step-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.step-body p{font-size:15px;color:var(--text-2);margin-bottom:16px;}
.step-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--primary);background:var(--primary-light);border-radius:var(--r-pill);padding:4px 12px;font-weight:600;}

/* 成果 */
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-1);height:100%;transition:transform .22s ease,box-shadow .22s ease;}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.stat-num{font-size:40px;font-weight:700;color:var(--primary);line-height:1.1;font-variant-numeric:tabular-nums;}
.stat-num small{font-size:16px;color:var(--text-2);font-weight:600;margin-left:4px;}
.stat-label{font-size:15px;font-weight:600;margin-top:10px;}
.stat-desc{font-size:13px;color:var(--text-3);margin-top:4px;}

/* 卡片与列表 */
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease;}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.post-card:hover .post-title a{color:var(--primary);}
.post-thumb{overflow:hidden;background:var(--primary-light);}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .22s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge-cat{display:inline-flex;align-items:center;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:3px 12px;margin-bottom:12px;}
.post-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-excerpt{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.post-meta{margin-top:auto;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.feature-post{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;margin-bottom:24px;transition:transform .22s ease,box-shadow .22s ease;}
.feature-post:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.feature-post img{width:100%;height:100%;min-height:260px;object-fit:cover;}
.feature-post .feature-body{padding:28px 30px;}
.feature-post .feature-title{font-size:23px;font-weight:700;line-height:1.45;margin-bottom:14px;}
.feature-post:hover .feature-title a{color:var(--primary);}
.filter-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.filter-pill{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--text-2);font-size:14px;transition:all .22s ease;}
.filter-pill:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}
.filter-pill.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}
.list-row{display:flex;gap:16px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);transition:all .22s ease;height:100%;}
.list-row:hover{background:#F6F8FB;border-color:#D3DEEC;transform:translateX(2px);}
.list-row:hover .list-row-title{color:var(--primary);}
.list-idx{flex:0 0 34px;font-size:14px;font-weight:700;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1.9;}
.list-row-title{font-size:16px;font-weight:600;line-height:1.55;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.list-row-desc{font-size:13px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px;}
.list-row-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;padding:32px 20px;color:var(--text-2);}
.empty-state svg{width:34px;height:34px;stroke:var(--text-3);fill:none;stroke-width:1.6;}
.empty-state p{font-size:14px;margin:0;}

/* 证言 */
.quote-card{background:var(--primary-light);border-radius:var(--r-card);padding:34px 36px;border:1px solid #D8E5F5;}
.quote-card p{font-size:21px;line-height:1.7;font-weight:600;color:var(--primary-dark);}
.quote-meta{margin-top:16px;font-size:13px;color:var(--text-2);}
.mini-quote{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-1);height:100%;transition:transform .22s ease,box-shadow .22s ease;}
.mini-quote:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--primary-light);color:var(--primary);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px;}
.mini-quote p{font-size:14px;color:var(--text-2);line-height:1.75;margin:14px 0 12px;}
.mini-quote .who{font-size:13px;color:var(--text-3);}

/* FAQ */
.accordion-item{border:0;border-top:1px solid var(--line);background:transparent;border-radius:0!important;}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{background:transparent;box-shadow:none;font-size:16px;font-weight:600;color:var(--ink);padding:22px 44px 22px 0;border-radius:0!important;position:relative;}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent;box-shadow:none;}
.accordion-button:not(.collapsed)::before{content:"";position:absolute;left:-16px;top:24px;bottom:24px;width:3px;border-radius:2px;background:var(--amber);}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--amber);outline-offset:2px;}
.accordion-button::after{background-image:none;content:"";width:10px;height:10px;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);transform:rotate(45deg);transition:transform .22s ease;position:absolute;right:8px;top:28px;}
.accordion-button:not(.collapsed)::after{border-color:var(--primary);transform:rotate(-135deg);}
.accordion-body{padding:0 40px 24px 0;font-size:15px;color:var(--text-2);line-height:1.8;}

/* CTA 带 */
.cta-band{background:var(--primary-dark);color:#fff;border-radius:var(--r-card);padding:52px 48px;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);background-size:28px 28px;opacity:.05;pointer-events:none;}
.cta-band h2{font-size:28px;font-weight:700;margin-bottom:12px;position:relative;}
.cta-band p{font-size:15px;color:#C9D8E8;max-width:34em;position:relative;}
.cta-form{position:relative;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-card);padding:24px;}
.form-label{font-size:13px;color:#C9D8E8;margin-bottom:8px;display:block;}
.form-control{width:100%;height:44px;border:1px solid rgba(255,255,255,.25);background:#fff;border-radius:var(--r-btn);padding:0 14px;font-size:14px;color:var(--ink);transition:border-color .22s ease,box-shadow .22s ease;}
.form-control::placeholder{color:var(--text-3);}
.form-control:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(228,162,60,.28);}
.form-note{font-size:12px;color:#9FB6CD;margin-top:10px;}

/* 页脚 */
.site-footer{background:var(--primary-dark);color:#C9D8E8;padding:60px 0 28px;margin-top:0;border-top:1px solid rgba(255,255,255,.12);}
.site-footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand .brand-mark svg{stroke:#fff;}
.footer-desc{font-size:13px;line-height:1.8;color:#9FB6CD;max-width:30em;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#C9D8E8;font-size:14px;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact{font-size:13px;color:#9FB6CD;line-height:2;}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#9FB6CD;}

/* 响应式 */
@media (max-width:1199px){
  .hero h1{font-size:38px;}
}
@media (max-width:991px){
  :root{--nav-h:108px;}
  .nav-top,.nav-top-inner{height:60px;}
  .channel-bar,.channel-inner{height:48px;}
  .brand-text{font-size:15.5px;}
  .hero-inner{min-height:auto;padding:52px 0 44px;}
  .hero h1{font-size:32px;max-width:none;}
  .hero-sub{font-size:16px;}
  .hero-card{margin-top:32px;}
  section.block{padding:64px 0;}
  .sec-title{font-size:25px;}
  .cta-band{padding:36px 24px;}
  .cta-band h2{font-size:23px;}
  .quote-card{padding:26px 24px;}
  .quote-card p{font-size:18px;}
}
@media (max-width:575px){
  .container-xxl{padding-inline:16px;}
  .hero-inner{padding:40px 0 36px;}
  .hero h1{font-size:27px;line-height:1.3;}
  .hero-sub{font-size:15px;}
  .hero-cta{gap:14px;}
  .btn{padding:10px 18px;font-size:14px;}
  section.block{padding:48px 0;}
  .sec-title{font-size:22px;padding-left:14px;}
  .sec-sub{font-size:14px;}
  .step-item{gap:14px;}
  .step-rail{flex:0 0 40px;}
  .step-num{width:36px;height:36px;font-size:13px;}
  .step-body{padding:20px;}
  .stat-num{font-size:32px;}
  .feature-post .feature-body{padding:22px 20px;}
  .feature-post .feature-title{font-size:19px;}
  .feature-post img{min-height:190px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --brand:#1C5B9B;
  --brand-hover:#174D84;
  --brand-dark:#14456F;
  --brand-light:#E8F0FA;
  --brand-8:rgba(28,91,155,.08);
  --brand-6:rgba(28,91,155,.06);
  --amber:#E4A23C;
  --green:#2E8B62;
  --orange:#C4622D;
  --red:#B23A3A;
  --ink:#0F1D2E;
  --t2:#4A5A70;
  --t3:#8194A8;
  --line:#E3E9F2;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-input:10px;
  --sh-1:0 2px 6px rgba(15,29,46,.04),0 12px 28px -14px rgba(15,29,46,.14);
  --sh-2:0 4px 10px rgba(15,29,46,.06),0 20px 40px -18px rgba(15,29,46,.22);
  --ease:.22s ease;
  --nav-h:114px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:132px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container-xxl{max-width:1280px;padding-left:20px;padding-right:20px;margin:0 auto;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}

/* ============ 双层导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  box-shadow:0 1px 0 var(--line),0 8px 24px -20px rgba(15,29,46,.35);
}
.top-bar{background:#fff;}
.top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:62px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-size:18px;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--ink);
}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-dark) 100%);
}
.brand-mark svg{
  width:20px;height:20px;
  fill:none;stroke:#fff;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;
}
.brand:hover{color:var(--brand);}
.nav-search{
  display:none;
  flex:1 1 auto;
  max-width:420px;
  margin-left:12px;
  position:relative;
}
@media (min-width:992px){.nav-search{display:flex;}}
.nav-search input{
  width:100%;
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#fff;
  padding:0 44px 0 14px;
  font-size:14px;
  color:var(--ink);
  transition:var(--ease);
}
.nav-search input::placeholder{color:var(--t3);}
.nav-search input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(28,91,155,.12);
}
.nav-search input:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.nav-search button{
  position:absolute;right:4px;top:4px;
  width:32px;height:32px;
  border:0;border-radius:8px;
  background:var(--brand-8);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:var(--ease);
}
.nav-search button svg{width:16px;height:16px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;}
.nav-search button:hover{background:var(--brand);}
.nav-search button:hover svg{stroke:#fff;}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:var(--ease);
}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;}
.icon-btn:hover{background:var(--brand-6);border-color:var(--brand);}
.icon-btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
@media (min-width:992px){.search-toggle{display:none;}}
@media (min-width:992px){#mobileSearch{display:none !important;}}
.mobile-search-inner{padding:10px 20px 16px;}
.mobile-search-inner form{display:flex;gap:10px;}
.mobile-search-inner input{
  flex:1;
  height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:0 14px;
  font-size:14px;
}
.mobile-search-inner input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(28,91,155,.12);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  background:var(--brand);
  color:#fff;
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  font-size:14px;font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:var(--ease);
}
.btn-brand:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-brand:active{transform:translateY(0);}
.btn-brand:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  height:40px;padding:0 18px;
  background:#fff;
  color:var(--brand);
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  font-size:14px;font-weight:600;
  cursor:pointer;
  transition:var(--ease);
}
.btn-ghost:hover{background:var(--brand-6);color:var(--brand-hover);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-ghost:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn-link-brand{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;
  border-bottom:1px solid rgba(28,91,155,.35);
  padding-bottom:2px;
  transition:var(--ease);
}
.btn-link-brand svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--ease);}
.btn-link-brand:hover{border-bottom-color:var(--brand);color:var(--brand-hover);}
.btn-link-brand:hover svg{transform:translateX(2px);}
.btn-link-brand:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px;}

.channel-bar{
  border-top:1px solid var(--line);
  background:#fff;
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:8px;
  height:52px;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--t2);
  background:transparent;
  transition:var(--ease);
}
.channel-link:hover{background:var(--brand-8);color:var(--brand);}
.channel-link.active,
.channel-link[aria-current="page"]{
  background:var(--brand);
  color:#fff;
}
.channel-link:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

/* ============ 文章头部 ============ */
.article-head{
  position:relative;
  padding:30px 0 38px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-head::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.07;
  pointer-events:none;
}
.article-head > .container{position:relative;z-index:1;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  margin-bottom:18px;
}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--brand);text-decoration:underline;}
.crumb .sep{color:var(--t3);}
.crumb .current{color:var(--t2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--brand-light);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  line-height:1.4;
}
.article-title{
  font-size:40px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.2px;
  margin:16px 0 0;
  max-width:22ch;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  margin-top:18px;
  font-size:13px;
  color:var(--t3);
  font-variant-numeric:tabular-nums;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta svg{width:14px;height:14px;fill:none;stroke:var(--t3);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

/* ============ 文章主体布局 ============ */
.article-wrap{padding:48px 0 72px;}
.article-grid{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.toc-rail{display:none;}
@media (min-width:1200px){
  .toc-rail{
    display:block;
    position:sticky;
    top:132px;
    align-self:start;
    padding-right:8px;
  }
}
.toc-title{
  font-size:13px;
  font-weight:700;
  color:var(--t2);
  letter-spacing:.4px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  margin-bottom:12px;
}
.toc-list a{
  display:block;
  padding:6px 0 6px 12px;
  font-size:13.5px;
  line-height:1.6;
  color:var(--t2);
  border-left:2px solid transparent;
  transition:var(--ease);
}
.toc-list a:hover{color:var(--brand);background:var(--brand-6);}
.toc-list a.is-active{
  color:var(--brand);
  font-weight:600;
  border-left-color:var(--amber);
  background:var(--brand-6);
}
.toc-list .lvl-3 a{padding-left:24px;font-size:13px;color:var(--t3);}
.toc-list .lvl-3 a.is-active{color:var(--brand);}

.article-main{max-width:820px;width:100%;margin:0 auto;}
.toc-mobile{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#fff;
  padding:14px 18px;
  margin-bottom:24px;
  box-shadow:var(--sh-1);
}
@media (min-width:1200px){.toc-mobile{display:none;}}
.toc-mobile summary{
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  list-style:none;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{
  content:"";
  display:inline-block;
  width:7px;height:7px;
  margin-left:8px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(45deg) translateY(-2px);
  transition:transform var(--ease);
}
.toc-mobile[open] summary::after{transform:rotate(-135deg) translateY(-2px);}
.toc-mobile .toc-list{margin-top:10px;}

.cover-figure{margin:0 0 32px;}
.cover-figure .cover-box{
  position:relative;
  aspect-ratio:16/9;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--brand-light);
  border:1px solid var(--line);
}
.cover-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.cover-figure:hover img{transform:scale(1.03);}
.cover-figure figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--t3);
  text-align:center;
  line-height:1.7;
}

.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:32px 34px 34px;
}
.article-body{font-size:16px;line-height:1.8;color:var(--ink);}
.article-body > * + *{margin-top:20px;}
.article-body h2{
  position:relative;
  font-size:28px;
  font-weight:700;
  line-height:1.35;
  margin-top:44px;
  padding-left:14px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.2em;bottom:.2em;
  width:4px;border-radius:2px;
  background:var(--amber);
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.5;
  margin-top:32px;
}
.article-body p{margin:0;}
.article-body blockquote{
  margin:0;
  background:var(--brand-light);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  padding:18px 22px;
  color:var(--t2);
  font-style:normal;
}
.article-body ul,.article-body ol{padding-left:22px;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body li + li{margin-top:8px;}
.article-body a{
  color:var(--brand);
  border-bottom:1px solid rgba(28,91,155,.3);
  transition:var(--ease);
}
.article-body a:hover{border-bottom-color:var(--brand);color:var(--brand-hover);}
.article-body img{
  width:100%;
  height:auto;
  border-radius:var(--r-img);
  margin:0 auto;
}
.article-body figure{margin:0;}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--t3);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  line-height:1.7;
}
.article-body thead th{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  text-align:left;
  font-weight:600;
  color:var(--ink);
}
.article-body th,.article-body td{padding:10px 12px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFCFE;}
.article-body code{
  background:var(--brand-light);
  color:var(--brand-dark);
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0;}

.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:#fff;
  min-height:220px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  text-align:center;
  padding:32px 20px;
  color:var(--t2);
}
.empty-state svg{width:36px;height:36px;fill:none;stroke:var(--t3);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.empty-state p{font-size:15px;}

/* ============ 标签 ============ */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:13px;color:var(--t3);}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;
  border-radius:999px;
  background:var(--bg);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--t2);
  transition:var(--ease);
}
.tag:hover{background:var(--brand-light);border-color:var(--brand-light);color:var(--brand);}
.tag:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

/* ============ 相关推荐 ============ */
.section-block{padding:56px 0 0;}
.section-head{margin-bottom:24px;}
.section-head h2{
  position:relative;
  font-size:26px;
  font-weight:700;
  padding-left:14px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--amber);
}
.section-head p{margin-top:8px;font-size:14px;color:var(--t2);}
.related-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.mini-card{
  display:flex;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:16px;
  transition:var(--ease);
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D3DEEE;}
.mini-card .thumb{
  flex:0 0 112px;
  width:112px;
  aspect-ratio:4/3;
  border-radius:10px;
  overflow:hidden;
  background:var(--brand-light);
}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.mini-card:hover .thumb img{transform:scale(1.03);}
.mini-card .info{min-width:0;display:flex;flex-direction:column;gap:8px;}
.mini-card h3{
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mini-card:hover h3{color:var(--brand);}
.mini-card p{
  font-size:13.5px;
  color:var(--t2);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mini-card .meta{
  margin-top:auto;
  font-size:12.5px;
  color:var(--t3);
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:center;
  gap:8px;
}

/* ============ 返回入口 ============ */
.back-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:40px;
  padding-top:28px;
  border-top:1px solid var(--line);
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:72px;
  background:var(--brand-dark);
  color:#D7E3F0;
  padding:56px 0 0;
  border-top:1px solid rgba(255,255,255,.12);
}
.site-footer h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:#B9CCE0;
  max-width:40ch;
}
.footer-links li + li{margin-top:10px;}
.footer-links a{
  font-size:14px;
  color:#B9CCE0;
  transition:var(--ease);
}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-links a:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}
.footer-contact{
  font-size:14px;
  line-height:2;
  color:#B9CCE0;
}
.footer-bottom{
  margin-top:40px;
  padding:18px 0 24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
  font-size:13px;
  color:#9DB3CA;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-main{max-width:820px;}
}
@media (max-width:991.98px){
  .article-title{font-size:32px;max-width:none;}
  .article-wrap{padding:36px 0 56px;}
  .article-card{padding:24px 22px 28px;}
  .article-body h2{font-size:24px;margin-top:36px;}
  .article-body h3{font-size:19px;}
}
@media (max-width:767.98px){
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .article-head{padding:22px 0 28px;}
  .article-title{font-size:27px;line-height:1.32;}
  .section-head h2{font-size:22px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .container-xxl{padding-left:16px;padding-right:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand{font-size:16px;}
  .brand-mark{width:28px;height:28px;flex-basis:28px;}
  .article-card{padding:20px 16px 24px;}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:22px;}
  .mini-card{flex-direction:column;}
  .mini-card .thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9;}
  .back-row .btn-brand,.back-row .btn-ghost{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#1C5B9B;
  --brand-dark:#14456F;
  --brand-light:#E8F0FA;
  --amber:#E4A23C;
  --ok:#2E8B62;
  --warn:#C4622D;
  --err:#B23A3A;
  --ink:#0F1D2E;
  --t2:#4A5A70;
  --t3:#8194A8;
  --line:#E3E9F2;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --r-input:10px;
  --sh-1:0 2px 6px rgba(15,29,46,.04), 0 12px 28px -14px rgba(15,29,46,.14);
  --sh-2:0 4px 10px rgba(15,29,46,.06), 0 20px 40px -18px rgba(15,29,46,.22);
  --nav-h:117px;
  --ease:.22s ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:130px;}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--brand-dark);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink);}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;}
.container-xxl{max-width:1280px;margin:0 auto;padding:0 20px;width:100%;}
.num{font-variant-numeric:tabular-nums;}
::selection{background:var(--brand-light);color:var(--brand-dark);}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}

/* ---------- 顶部导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1030;}
.topbar{background:#fff;border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:18px;height:66px;}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.brand:hover{color:var(--brand);}
.brand-mark{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;background:var(--brand-light);border-radius:9px;}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;}
.brand-mark svg circle{fill:var(--amber);stroke:none;}
.search-box{position:relative;flex:1;max-width:340px;margin-left:auto;}
.search-box input{
  width:100%;height:42px;padding:0 16px 0 42px;border:1px solid var(--line);
  border-radius:var(--r-input);background:#fff;color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box input::placeholder{color:var(--t3);}
.search-box input:hover{border-color:#CFDBEA;}
.search-box input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(28,91,155,.12);}
.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:17px;height:17px;stroke:var(--t3);fill:none;stroke-width:1.8;}
.top-actions{display:flex;align-items:center;gap:10px;}
.search-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);align-items:center;justify-content:center;cursor:pointer;transition:border-color var(--ease),background-color var(--ease);}
.search-toggle:hover{border-color:var(--brand);background:var(--brand-light);}
.search-toggle svg{width:18px;height:18px;stroke:var(--brand);fill:none;stroke-width:1.8;}
.mobile-search{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 16px;box-shadow:var(--sh-1);}
.mobile-search .search-box{max-width:none;margin:0;}

.channel-bar{background:#fff;border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;gap:8px;height:50px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--t2);white-space:nowrap;flex:0 0 auto;
  transition:background-color var(--ease),color var(--ease);
}
.channel-link:hover{background:rgba(28,91,155,.08);color:var(--brand);}
.channel-link.active{background:var(--brand);color:#fff;}
.channel-link.active:hover{background:var(--brand-dark);color:#fff;}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:all var(--ease);
}
.btn-main{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-main:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-main:active{transform:translateY(0);background:#113A5F;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(28,91,155,.06);color:var(--brand-dark);border-color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);background:rgba(28,91,155,.12);}
.btn-text{height:auto;padding:0;background:none;border:none;color:var(--brand);text-decoration:underline;text-underline-offset:4px;font-weight:600;}
.btn-text svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform var(--ease);}
.btn-text:hover{color:var(--brand-dark);}
.btn-text:hover svg{transform:translateX(2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;padding:52px 0 46px;background:var(--brand-light) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;overflow:hidden;}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 46%,rgba(255,255,255,.62) 100%);}
.page-hero .container-xxl{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t2);margin-bottom:14px;}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--brand);text-decoration:underline;}
.crumb .sep{color:var(--t3);}
.crumb .cur{color:var(--brand);font-weight:600;}
.page-hero h1{font-size:40px;font-weight:700;letter-spacing:.4px;max-width:820px;}
.page-hero .lead{max-width:660px;margin-top:16px;color:var(--t2);font-size:16px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.tag-pill{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.92);border:1px solid var(--line);font-size:12.5px;color:var(--t2);}
.tag-pill.is-amber{background:rgba(228,162,60,.14);border-color:rgba(228,162,60,.32);color:#8A5E14;}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-head{margin-bottom:34px;}
.section-head h2{font-size:29px;position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--amber);}
.section-head .sub{margin-top:12px;color:var(--t2);font-size:15px;max-width:760px;}
.bg-white-block{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 主推卡 ---------- */
.feature-card{
  display:grid;grid-template-columns:1.02fr 1fr;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow var(--ease),transform var(--ease);
}
.feature-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.feature-thumb{position:relative;aspect-ratio:16/9;background:var(--brand-light);overflow:hidden;}
.feature-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--ease);}
.feature-card:hover .feature-thumb img{transform:scale(1.03);}
.feature-body{padding:28px;display:flex;flex-direction:column;}
.badge-cat{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;width:fit-content;}
.feature-body h3{margin-top:14px;font-size:22px;line-height:1.4;}
.feature-body h3 a{color:var(--ink);}
.feature-body h3 a:hover{color:var(--brand);}
.feature-body p{margin-top:12px;color:var(--t2);font-size:15px;}
.feature-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--t3);flex-wrap:wrap;}
.feature-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

/* ---------- 纵向列表 ---------- */
.news-list{list-style:none;margin:0;padding:0;}
.news-item{
  display:grid;grid-template-columns:52px 1fr 132px;gap:18px;align-items:start;
  padding:22px 20px;border-bottom:1px solid var(--line);background:#fff;
  transition:background-color var(--ease);
}
.news-list > li:first-child .news-item{border-top:1px solid var(--line);}
.news-item:hover{background:var(--bg);}
.news-item .idx{font-size:24px;font-weight:700;color:var(--amber);line-height:1.2;font-variant-numeric:tabular-nums;}
.news-item h3{font-size:17px;font-weight:600;line-height:1.5;}
.news-item h3 a{color:var(--ink);}
.news-item h3 a:hover{color:var(--brand);}
.news-item .excerpt{margin-top:8px;font-size:14px;color:var(--t2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .meta{text-align:right;font-size:13px;color:var(--t3);display:flex;flex-direction:column;align-items:flex-end;gap:8px;}
.news-item .meta .state{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--ok);}
.news-item .meta .state.pending{color:var(--warn);}
.news-item .meta .arrow{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:2;transition:transform var(--ease);}
.news-item:hover .meta .arrow{transform:translateX(4px);}

/* ---------- 要点卡 ---------- */
.point-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--amber);
  border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh-1);height:100%;
  transition:box-shadow var(--ease),transform var(--ease);
}
.point-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.point-card h3{font-size:19px;margin-bottom:10px;}
.point-card p{color:var(--t2);font-size:15px;margin:0;}

/* ---------- 步骤 ---------- */
.step-row{display:grid;grid-template-columns:72px 1fr;gap:22px;padding:26px 0;border-bottom:1px dashed var(--line);}
.step-row:last-child{border-bottom:none;}
.step-num{display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:16px;background:var(--brand-light);color:var(--brand);font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;}
.step-row h3{font-size:19px;margin-bottom:8px;}
.step-row p{color:var(--t2);font-size:15px;margin:0;}
.step-side{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);}
.step-side img{aspect-ratio:4/3;width:100%;object-fit:cover;}
.step-side .cap{margin-top:12px;font-size:13px;color:var(--t3);line-height:1.7;}

/* ---------- 场景 ---------- */
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;height:100%;box-shadow:var(--sh-1);transition:box-shadow var(--ease),transform var(--ease);}
.scene-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.scene-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.scene-icon svg{width:20px;height:20px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.scene-card h3{font-size:18px;margin-bottom:10px;}
.scene-card p{color:var(--t2);font-size:14.5px;margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:8px 26px;}
.faq-wrap .accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent;}
.faq-wrap .accordion-item:last-child{border-bottom:none;}
.faq-wrap .accordion-button{
  background:transparent;border:none;box-shadow:none;padding:20px 40px 20px 16px;
  font-size:16.5px;font-weight:600;color:var(--ink);position:relative;border-radius:0;
}
.faq-wrap .accordion-button::after{display:none;}
.faq-wrap .accordion-button .chev{position:absolute;right:0;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:var(--t3);fill:none;stroke-width:2;transition:transform var(--ease),stroke var(--ease);}
.faq-wrap .accordion-button:not(.collapsed){color:var(--brand);background:transparent;}
.faq-wrap .accordion-button:not(.collapsed) .chev{transform:translateY(-50%) rotate(180deg);stroke:var(--brand);}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:2px solid var(--amber);outline-offset:-2px;}
.faq-wrap .accordion-button::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;background:transparent;transition:background-color var(--ease);}
.faq-wrap .accordion-button:not(.collapsed)::before{background:var(--amber);}
.faq-wrap .accordion-body{padding:0 40px 22px 16px;color:var(--t2);font-size:15px;line-height:1.8;}

/* ---------- 相关分类 ---------- */
.rel-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px;}
.rel-links a{
  display:inline-flex;align-items:center;gap:8px;padding:14px 20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);color:var(--ink);font-size:15px;font-weight:600;
  box-shadow:var(--sh-1);transition:all var(--ease);
}
.rel-links a svg{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:2;transition:transform var(--ease);}
.rel-links a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.rel-links a:hover svg{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-dark);color:#fff;border-radius:var(--r-card);padding:44px;position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1px);background-size:26px 26px;opacity:.06;pointer-events:none;}
.cta-band .inner{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:28px;}
.cta-band p{color:rgba(255,255,255,.82);margin-top:12px;max-width:560px;}
.form-card{background:#fff;border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-2);}
.form-card label{display:block;font-size:13.5px;font-weight:600;color:var(--t2);margin-bottom:8px;}
.form-card .field{margin-bottom:16px;}
.form-card input,.form-card select,.form-card textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);padding:11px 14px;
  background:#fff;font-size:14.5px;transition:border-color var(--ease),box-shadow var(--ease);
}
.form-card input:hover,.form-card select:hover,.form-card textarea:hover{border-color:#CFDBEA;}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(28,91,155,.12);}
.form-card textarea{min-height:88px;resize:vertical;}
.form-hint{font-size:12.5px;color:var(--t3);margin-top:10px;}
.btn-main.on-dark{background:var(--amber);border-color:var(--amber);color:#3A2606;width:100%;}
.btn-main.on-dark:hover{background:#D3922D;border-color:#D3922D;color:#3A2606;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);margin-top:8px;border-top:1px solid rgba(255,255,255,.12);}
.site-footer .container-xxl{padding-top:56px;padding-bottom:26px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand .brand-mark svg{stroke:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:380px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links{list-style:none;}
.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;line-height:1.9;color:rgba(255,255,255,.76);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container-xxl{max-width:1140px;}
  .page-hero h1{font-size:36px;}
}
@media (max-width:991.98px){
  :root{--nav-h:108px;}
  .topbar-inner{height:60px;gap:12px;}
  .channel-inner{height:48px;}
  .search-box{display:none;}
  .search-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .section.tight{padding:48px 0;}
  .feature-card{grid-template-columns:1fr;}
  .page-hero{padding:40px 0 36px;}
  .page-hero h1{font-size:30px;}
  .news-item{grid-template-columns:44px 1fr;gap:14px;}
  .news-item .meta{grid-column:2;text-align:left;align-items:flex-start;flex-direction:row;flex-wrap:wrap;gap:12px;}
  .cta-band{padding:32px 24px;}
}
@media (max-width:767.98px){
  .section{padding:48px 0;}
  .section-head h2{font-size:23px;}
  .section-head{margin-bottom:24px;}
  .page-hero h1{font-size:27px;}
  .page-hero .lead{font-size:15px;}
  .feature-body{padding:22px;}
  .feature-body h3{font-size:19px;}
  .news-item{padding:18px 14px;}
  .news-item h3{font-size:16px;}
  .step-row{grid-template-columns:1fr;gap:14px;}
  .step-num{width:48px;height:48px;font-size:17px;}
  .faq-wrap{padding:6px 16px;}
  .faq-wrap .accordion-button{font-size:15.5px;padding:16px 34px 16px 12px;}
  .faq-wrap .accordion-body{padding:0 34px 18px 12px;font-size:14.5px;}
  .cta-band h2{font-size:22px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .container-xxl{padding:0 16px;}
  .brand{font-size:17px;}
  .page-hero h1{font-size:25px;}
  .btn-main,.btn-ghost{height:44px;padding:0 18px;font-size:14.5px;}
  .rel-links a{width:100%;justify-content:space-between;}
}

/* roulang page: category2 */
:root{
  --brand:#1C5B9B;
  --brand-dark:#14456F;
  --brand-light:#E8F0FA;
  --amber:#E4A23C;
  --success:#2E8B62;
  --warn:#C4622D;
  --danger:#B23A3A;
  --ink:#0F1D2E;
  --sub:#4A5A70;
  --muted:#8194A8;
  --line:#E3E9F2;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 6px rgba(15,29,46,.04), 0 12px 28px -14px rgba(15,29,46,.14);
  --sh-2:0 4px 10px rgba(15,29,46,.06), 0 20px 40px -18px rgba(15,29,46,.22);
  --sec:88px;
  --nav-h:112px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:130px;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
a:hover{color:var(--brand-dark);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 8px rgba(15,29,46,.04);
}
.nav-top{
  display:flex;align-items:center;gap:20px;
  height:64px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;color:var(--ink);
  letter-spacing:.4px;white-space:nowrap;flex-shrink:0;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-dark) 100%);
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;}
.nav-search{
  flex:1 1 auto;max-width:420px;position:relative;
}
.nav-search input{
  width:100%;height:40px;
  padding:0 14px 0 40px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#FBFCFE;
  color:var(--ink);
  outline:none;
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(28,91,155,.12);
}
.nav-search .ico{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;stroke:var(--muted);fill:none;stroke-width:1.8;
}
.nav-search-btn{
  display:none;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-search-btn svg{width:18px;height:18px;stroke:var(--brand);fill:none;stroke-width:1.8;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;
  border-radius:var(--r-btn);border:1px solid var(--brand);
  background:var(--brand);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-main:hover{background:#18527F;border-color:#18527F;color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px -12px rgba(28,91,155,.7);}
.btn-main:active{transform:translateY(0);background:var(--brand-dark);}
.btn-main:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;
  border-radius:var(--r-btn);border:1px solid var(--brand);
  background:#fff;color:var(--brand);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:rgba(28,91,155,.06);color:var(--brand-dark);border-color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-ghost:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;
  border-bottom:1px solid currentColor;padding-bottom:2px;
}
.btn-text svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .22s ease;}
.btn-text:hover svg{transform:translateX(2px);}
.btn-text:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px;}
.search-collapse{display:none;padding:0 0 14px;}
.search-collapse .nav-search{max-width:100%;}

.channel-bar{
  background:#fff;
  border-top:1px solid var(--line);
}
.channel-inner{
  display:flex;align-items:center;gap:10px;
  height:50px;
  overflow-x:auto;overflow-y:hidden;
  white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;
  border-radius:999px;
  font-size:14px;font-weight:600;
  color:var(--sub);
  background:transparent;
  transition:background-color .22s ease,color .22s ease;
}
.channel-link:hover{background:rgba(28,91,155,.08);color:var(--brand);}
.channel-link:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.channel-link.active{background:var(--brand);color:#fff;}
.channel-link.active:hover{background:var(--brand-dark);color:#fff;}

/* ---------- 容器 ---------- */
.container-xxl{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}
@media (min-width:1400px){.container-xxl{max-width:1280px;}}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(180deg,#EEF4FB 0%,#F6F8FB 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(28,91,155,.5) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.05;
}
.page-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 380px;gap:36px;align-items:center;
  padding-top:34px;padding-bottom:34px;min-height:250px;
}
.breadcrumb-row{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:14px;
}
.breadcrumb-row a{color:var(--sub);}
.breadcrumb-row a:hover{color:var(--brand);text-decoration:underline;}
.breadcrumb-row .sep{color:#C3CEDD;}
.breadcrumb-row .cur{color:var(--ink);font-weight:600;}
.page-hero h1{
  font-size:40px;
  margin-bottom:14px;
  letter-spacing:.5px;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.page-hero .lead{
  font-size:16px;color:var(--sub);max-width:600px;
}
.hero-thumb{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:16/10;background:var(--brand-light);
  box-shadow:var(--sh-1);
}
.hero-thumb img{width:100%;height:100%;object-fit:cover;}
.hero-tagline{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:12.5px;color:var(--sub);font-weight:600;
  margin-bottom:16px;
}
.hero-tagline i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:inline-block;}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.sec-head{margin-bottom:40px;max-width:760px;}
.sec-head h2{
  font-size:30px;position:relative;padding-left:16px;margin-bottom:14px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;
  width:4px;border-radius:2px;background:var(--amber);
}
.sec-head p{color:var(--sub);font-size:15.5px;}

/* ---------- 分类卡片网格 ---------- */
.card-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.guide-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guide-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D3DEEE;}
.guide-thumb{
  aspect-ratio:4/3;overflow:hidden;background:var(--brand-light);
  position:relative;
}
.guide-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.guide-card:hover .guide-thumb img{transform:scale(1.03);}
.step-no{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.94);
  color:var(--brand);font-size:12.5px;font-weight:700;
  letter-spacing:.5px;
}
.guide-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge-soft{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:600;width:fit-content;
}
.guide-body h3{font-size:19px;}
.guide-body p{color:var(--sub);font-size:15px;line-height:1.8;}
.guide-meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.guide-meta .who{color:var(--sub);font-weight:600;}

/* ---------- 右栏 ---------- */
.side-col{position:relative;}
.side-sticky{position:sticky;top:130px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:24px;
}
.side-card h3{font-size:17px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line);}
.anchor-list li+li{margin-top:6px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:8px;
  font-size:14.5px;color:var(--sub);
  transition:background-color .22s ease,color .22s ease;
  border-left:2px solid transparent;
}
.anchor-list a:hover{background:#F6F8FB;color:var(--brand);border-left-color:var(--amber);}
.anchor-list a:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.anchor-list .dot{
  width:20px;height:20px;border-radius:6px;flex:0 0 20px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);
  font-size:11.5px;font-weight:700;
}
.side-cta{
  background:linear-gradient(160deg,var(--brand) 0%,var(--brand-dark) 100%);
  border-radius:var(--r-card);padding:26px;color:#fff;
  box-shadow:var(--sh-1);
}
.side-cta h3{color:#fff;font-size:18px;margin-bottom:10px;border:0;padding:0;}
.side-cta p{font-size:14px;color:rgba(255,255,255,.82);line-height:1.75;margin-bottom:18px;}
.side-cta .btn-main{background:#fff;color:var(--brand);border-color:#fff;width:100%;justify-content:center;}
.side-cta .btn-main:hover{background:#F0F5FC;color:var(--brand-dark);border-color:#F0F5FC;}
.side-note{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13px;color:var(--muted);line-height:1.7;
}
.side-note svg{width:16px;height:16px;flex:0 0 16px;margin-top:3px;stroke:var(--amber);fill:none;stroke-width:1.8;}

/* ---------- 通道列表 ---------- */
.channel-list{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
}
.channel-row{
  display:grid;grid-template-columns:76px 1fr 210px;gap:20px;align-items:start;
  padding:24px 26px;border-bottom:1px solid var(--line);
  transition:background-color .22s ease;
}
.channel-row:last-child{border-bottom:0;}
.channel-row:hover{background:#F6F8FB;}
.channel-row .idx{
  font-size:26px;font-weight:700;color:var(--brand);
  letter-spacing:1px;line-height:1.2;
}
.channel-row h3{font-size:18px;margin-bottom:8px;}
.channel-row p{font-size:14.5px;color:var(--sub);}
.channel-row .fit{
  font-size:13.5px;color:var(--sub);
  background:#FBFCFE;border:1px dashed var(--line);
  border-radius:10px;padding:12px 14px;line-height:1.7;
}
.channel-row .fit b{display:block;color:var(--brand);font-size:12.5px;margin-bottom:4px;font-weight:700;}

/* ---------- 流程 ---------- */
.flow{display:flex;flex-direction:column;gap:0;}
.flow-item{
  display:grid;grid-template-columns:56px 1fr;gap:22px;
  padding-bottom:28px;position:relative;
}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:27px;top:44px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--brand-light),transparent);
}
.flow-item:last-child::before{display:none;}
.flow-dot{
  width:54px;height:54px;border-radius:16px;
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;color:var(--brand);
  box-shadow:var(--sh-1);position:relative;z-index:2;
}
.flow-body{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.flow-body:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.flow-body h3{font-size:18px;margin-bottom:10px;}
.flow-body p{font-size:14.8px;color:var(--sub);}
.flow-body .tips{
  margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;
}
.tip-pill{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  background:#F6F8FB;border:1px solid var(--line);
  font-size:12.5px;color:var(--sub);
}

/* ---------- FAQ ---------- */
.faq-wrap{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:8px 26px;
}
.faq-wrap .accordion-item{
  border:0;border-bottom:1px solid var(--line);background:transparent;
}
.faq-wrap .accordion-item:last-child{border-bottom:0;}
.faq-wrap .accordion-button{
  background:transparent;box-shadow:none;
  padding:22px 0 22px 16px;
  font-size:16.5px;font-weight:600;color:var(--ink);
  border-radius:0;
}
.faq-wrap .accordion-button::after{
  background-image:none;
  content:"";
  width:9px;height:9px;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  transform:rotate(45deg);
  margin-left:auto;
  transition:transform .22s ease,border-color .22s ease;
  flex-shrink:0;
}
.faq-wrap .accordion-button:not(.collapsed){
  color:var(--brand);background:transparent;
  box-shadow:inset 3px 0 0 0 var(--amber);
}
.faq-wrap .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);border-color:var(--brand);
}
.faq-wrap .accordion-button:focus{outline:0;box-shadow:none;border-color:var(--line);}
.faq-wrap .accordion-button:focus-visible{outline:2px solid var(--amber);outline-offset:-2px;}
.faq-wrap .accordion-body{
  padding:0 0 22px 16px;color:var(--sub);font-size:15px;line-height:1.85;
}
.faq-wrap .accordion-body strong{color:var(--ink);}

/* ---------- 协助带 ---------- */
.help-band{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:40px;display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:center;
}
.help-band h2{font-size:26px;margin-bottom:12px;padding-left:16px;position:relative;}
.help-band h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--amber);
}
.help-band p{color:var(--sub);font-size:15.5px;margin-bottom:18px;}
.help-list{display:flex;flex-wrap:wrap;gap:10px;}
.help-media{
  aspect-ratio:4/3;border-radius:var(--r-card);overflow:hidden;background:var(--brand-light);
}
.help-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  border-radius:var(--r-card);
  padding:52px 48px;color:#fff;
  display:grid;grid-template-columns:1fr 380px;gap:44px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:30px 30px;opacity:.06;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.85);font-size:15.5px;margin-bottom:22px;position:relative;z-index:2;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}
.cta-band .btn-white{
  display:inline-flex;align-items:center;height:44px;padding:0 22px;
  border-radius:var(--r-btn);background:#fff;color:var(--brand);
  font-weight:600;border:1px solid #fff;cursor:pointer;
  transition:background-color .22s ease,transform .22s ease;
}
.cta-band .btn-white:hover{background:#EEF4FB;color:var(--brand-dark);transform:translateY(-1px);}
.cta-band .btn-white:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.cta-band .btn-line{
  display:inline-flex;align-items:center;height:44px;padding:0 22px;
  border-radius:var(--r-btn);background:transparent;color:#fff;
  font-weight:600;border:1px solid rgba(255,255,255,.55);
  transition:background-color .22s ease,border-color .22s ease;
}
.cta-band .btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.cta-band .btn-line:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.cta-form{
  position:relative;z-index:2;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-card);
  padding:22px;
  display:flex;flex-direction:column;gap:12px;
}
.cta-form label{font-size:13px;color:rgba(255,255,255,.85);margin-bottom:6px;display:block;}
.cta-form input{
  width:100%;height:42px;padding:0 14px;
  border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.94);color:var(--ink);outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.cta-form input:focus{border-color:var(--amber);box-shadow:0 0 0 3px rgba(228,162,60,.28);}
.cta-form button{
  height:44px;border-radius:var(--r-btn);border:0;cursor:pointer;
  background:var(--amber);color:#3A2606;font-weight:700;font-size:15px;
  transition:background-color .22s ease,transform .22s ease;
}
.cta-form button:hover{background:#D8942C;transform:translateY(-1px);}
.cta-form button:focus-visible{outline:2px solid #fff;outline-offset:2px;}
.cta-form .hint{font-size:12.5px;color:rgba(255,255,255,.7);line-height:1.6;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-dark);color:#D6E2F1;
  margin-top:var(--sec);
  border-top:1px solid rgba(255,255,255,.14);
}
.site-footer .container-xxl{padding-top:64px;padding-bottom:28px;}
.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-desc{font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.85;max-width:360px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.74);font-size:14.5px;transition:color .22s ease;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact{font-size:14.5px;color:rgba(255,255,255,.74);line-height:2;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sec:72px;}
  .page-hero-inner{grid-template-columns:1fr 300px;gap:28px;}
  .page-hero h1{font-size:36px;}
  .side-sticky{top:120px;}
}
@media (max-width:991.98px){
  :root{--sec:64px;--nav-h:104px;}
  .nav-search{display:none;}
  .nav-search-btn{display:inline-flex;}
  .search-collapse{display:block;}
  .page-hero-inner{grid-template-columns:1fr;gap:24px;}
  .hero-thumb{display:none;}
  .page-hero h1{font-size:31px;}
  .card-grid{grid-template-columns:1fr;}
  .side-sticky{position:static;}
  .side-order{margin-top:8px;}
  .channel-row{grid-template-columns:56px 1fr;gap:16px;}
  .channel-row .fit{grid-column:1/-1;}
  .help-band{grid-template-columns:1fr;padding:30px;}
  .help-media{display:none;}
  .cta-band{grid-template-columns:1fr;padding:36px 26px;gap:28px;}
  .sec-head h2{font-size:25px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:575.98px){
  :root{--sec:48px;}
  .container-xxl{padding-left:16px;padding-right:16px;}
  .brand{font-size:17px;}
  .brand-mark{width:28px;height:28px;flex:0 0 28px;}
  .brand-mark svg{width:16px;height:16px;}
  .btn-main{height:38px;padding:0 14px;font-size:14px;}
  .page-hero h1{font-size:27px;}
  .page-hero .lead{font-size:15px;}
  .sec-head h2{font-size:22px;}
  .guide-body{padding:20px;}
  .channel-row{padding:20px;grid-template-columns:1fr;}
  .channel-row .idx{font-size:22px;}
  .faq-wrap{padding:6px 18px;}
  .faq-wrap .accordion-button{font-size:15.5px;}
  .cta-band h2{font-size:23px;}
  .cta-band .cta-actions{gap:10px;}
  .cta-band .btn-white,.cta-band .btn-line{width:100%;justify-content:center;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category3 */
:root{
  --primary:#1C5B9B;
  --primary-dark:#14456F;
  --primary-light:#E8F0FA;
  --amber:#E4A23C;
  --success:#2E8B62;
  --warn:#C4622D;
  --danger:#B23A3A;
  --ink:#0F1D2E;
  --ink-2:#4A5A70;
  --ink-3:#8194A8;
  --line:#E3E9F2;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:12px;
  --r-input:10px;
  --sh:0 2px 6px rgba(15,29,46,.04), 0 12px 28px -14px rgba(15,29,46,.14);
  --sh-hover:0 4px 10px rgba(15,29,46,.06), 0 20px 40px -18px rgba(15,29,46,.22);
  --t:.22s ease;
  --nav-h:124px;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --bs-body-color:#0F1D2E;
  --bs-body-bg:#F6F8FB;
  --bs-link-color:#1C5B9B;
  --bs-link-hover-color:#14456F;
  --bs-border-color:#E3E9F2;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{
  margin:0;
  padding-top:var(--nav-h);
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t),background-color var(--t)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
.num{font-variant-numeric:tabular-nums}
.container-xxl{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media (min-width:1400px){.container-xxl{max-width:1280px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  height:72px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--primary)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.nav-search{
  flex:1 1 auto;max-width:520px;position:relative;align-items:center;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-input);
  height:42px;padding:0 6px 0 36px;transition:border-color var(--t),box-shadow var(--t);
}
.nav-search .search-ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;fill:none;stroke:var(--ink-3);stroke-width:1.8;stroke-linecap:round}
.nav-search input{
  flex:1 1 auto;border:0;background:transparent;height:40px;outline:none;color:var(--ink);
  min-width:0;font-size:14px;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(28,91,155,.08)}
.search-btn{
  border:0;background:var(--primary);color:#fff;height:30px;padding:0 14px;border-radius:8px;
  font-size:13px;font-weight:600;transition:background-color var(--t),transform var(--t);cursor:pointer;
}
.search-btn:hover{background:var(--primary-dark);transform:translateY(-1px)}
.search-btn:active{transform:translateY(0)}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-toggle{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;
  transition:border-color var(--t),background-color var(--t);cursor:pointer;
}
.search-toggle:hover{border-color:var(--primary);background:var(--primary-light)}
.search-toggle svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.mobile-search{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh);padding:14px 0}
.mobile-search form{display:flex;gap:10px;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-input);padding:6px 6px 6px 14px}
.mobile-search input{flex:1 1 auto;border:0;background:transparent;outline:none;height:38px;min-width:0}
.channel-bar{border-top:1px solid var(--line);background:#fff}
.channel-inner{
  height:52px;display:flex;align-items:center;gap:8px;
  overflow-x:auto;overflow-y:hidden;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  flex:0 0 auto;height:34px;display:inline-flex;align-items:center;
  padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);background:transparent;
  transition:background-color var(--t),color var(--t);
}
.channel-link:hover{background:rgba(28,91,155,.08);color:var(--primary)}
.channel-link.active{background:var(--primary);color:#fff;font-weight:600}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;transition:all var(--t);
  border:1px solid transparent;cursor:pointer;
}
.btn-main{background:var(--primary);color:#fff;padding:0 22px;height:48px;font-size:15px}
.btn-main:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.btn-main:active{transform:translateY(0);background:var(--primary-dark)}
.btn-main.btn-sm-main{height:40px;padding:0 18px;font-size:14px}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);padding:0 22px;height:48px;font-size:15px}
.btn-ghost:hover{background:rgba(28,91,155,.06);color:var(--primary-dark);border-color:var(--primary-dark)}
.btn-ghost:active{background:rgba(28,91,155,.12)}
.btn-text{
  background:transparent;color:var(--primary);padding:0;height:auto;border:0;
  border-bottom:1px solid rgba(28,91,155,.35);border-radius:0;font-size:15px;
}
.btn-text svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;transition:transform var(--t)}
.btn-text:hover{border-bottom-color:var(--primary-dark);color:var(--primary-dark)}
.btn-text:hover svg{transform:translateX(2px)}
.btn-main:focus-visible,.btn-ghost:focus-visible,.btn-text:focus-visible,.search-toggle:focus-visible,.search-btn:focus-visible,.channel-link:focus-visible{
  outline:2px solid var(--amber);outline-offset:2px;
}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(28,91,155,.16) 1px, transparent 1.2px);
  background-size:26px 26px;
}
.page-hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.25fr .95fr;gap:48px;align-items:center;
  padding:52px 0 56px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--line)}
.crumb .current{color:var(--ink-2);font-weight:600}
.page-hero h1{font-size:42px;letter-spacing:.5px}
.page-hero h1 .hl{color:var(--primary)}
.hero-lead{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:600px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;
}
.tag-pill.amber{background:rgba(228,162,60,.14);color:#A9701B}
.page-hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:4/3;background:var(--primary-light);box-shadow:var(--sh);
}
.page-hero-media img{width:100%;height:100%;object-fit:cover}
.page-hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;font-size:13px;color:#fff;
  background:linear-gradient(180deg,rgba(20,69,111,0) 0%,rgba(20,69,111,.82) 100%);
}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);letter-spacing:1px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);border-radius:2px}
.section-head h2{font-size:30px;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--amber);
}
.section-head .sub{margin-top:14px;color:var(--ink-2);font-size:16px}

/* ============ 图文交替 ============ */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:36px 0;
}
.alt-row + .alt-row{border-top:1px dashed var(--line)}
.alt-row.reverse .alt-media{order:-1}
.alt-copy .step-no{
  font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;background:var(--primary-light);
  color:var(--primary);font-weight:700;font-size:15px;margin-bottom:16px;
}
.alt-copy h2{font-size:28px}
.alt-copy p{margin-top:14px;color:var(--ink-2)}
.check-list{margin-top:20px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.check-list svg{flex:0 0 auto;width:18px;height:18px;margin-top:6px;fill:none;stroke:var(--success);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.alt-media{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/3;
  background:var(--primary-light);box-shadow:var(--sh);position:relative;
  transition:box-shadow var(--t),transform var(--t);
}
.alt-media:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.alt-media:hover img{transform:scale(1.03)}

/* ============ 处理进度 ============ */
.track{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;margin-top:12px;
}
.track::before{
  content:"";position:absolute;left:6%;right:6%;top:23px;height:2px;
  background:linear-gradient(90deg,var(--primary-light),var(--amber),var(--primary-light));
  opacity:.7;
}
.track-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh);transition:box-shadow var(--t),transform var(--t)}
.track-item:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.track-dot{
  width:46px;height:46px;border-radius:50%;background:#fff;border:2px solid var(--primary);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;position:relative;z-index:1;
}
.track-item:nth-child(3) .track-dot{border-color:var(--amber);color:#A9701B}
.track-item h3{font-size:18px}
.track-item p{margin-top:10px;color:var(--ink-2);font-size:14px}
.track-meta{margin-top:14px;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* ============ 快速自查两列卡 ============ */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.qa-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh);transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.qa-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:#D6E1EF}
.qa-card h3{font-size:18px;display:flex;gap:10px;align-items:flex-start}
.qa-card h3 .mark{color:var(--amber);font-weight:700}
.qa-card p{margin-top:12px;color:var(--ink-2);font-size:15px}
.qa-card .qa-foot{margin-top:16px;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.dot-ok{width:8px;height:8px;border-radius:50%;background:var(--success);display:inline-block}
.dot-warn{width:8px;height:8px;border-radius:50%;background:var(--warn);display:inline-block}

/* ============ FAQ 手风琴 ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.accordion-item:first-child{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--ink);font-size:17px;font-weight:600;
  padding:22px 44px 22px 18px;box-shadow:none;position:relative;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;
  background:transparent;transition:background-color var(--t);
}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent}
.accordion-button:not(.collapsed)::before{background:var(--amber)}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--amber);outline-offset:-2px}
.accordion-button::after{
  background-image:none;content:"";width:9px;height:9px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:transform var(--t),border-color var(--t);
  margin-left:auto;position:absolute;right:18px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--primary)}
.accordion-body{padding:0 18px 24px 18px;color:var(--ink-2);font-size:15.5px}
.accordion-body p + p{margin-top:12px}
.accordion-body ul{margin-top:12px;display:grid;gap:8px}
.accordion-body ul li{position:relative;padding-left:16px;color:var(--ink-2)}
.accordion-body ul li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--primary-light);border:1.5px solid var(--primary)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--primary-dark);color:#fff;border-radius:0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.16;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px, transparent 1.2px);
  background-size:24px 24px;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:72px 0}
.cta-inner h2{color:#fff;font-size:30px}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.82);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-actions .btn-main{background:#fff;color:var(--primary-dark)}
.cta-actions .btn-main:hover{background:#EAF2FB;color:var(--primary-dark)}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.cta-form{
  background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-hover);color:var(--ink);
}
.cta-form h3{font-size:19px}
.cta-form .hint{margin-top:8px;font-size:13px;color:var(--ink-3)}
.field{margin-top:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;font-weight:600}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  padding:11px 14px;background:#fff;color:var(--ink);outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.field input:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 2px 10px -4px rgba(28,91,155,.35)}
.field .err{display:block;margin-top:6px;font-size:12.5px;color:var(--danger)}
.cta-form .btn-main{width:100%;margin-top:20px}
.cta-form .form-note{margin-top:12px;font-size:12.5px;color:var(--ink-3)}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;letter-spacing:.4px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:360px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact{font-size:14px;line-height:2;color:rgba(255,255,255,.72)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px}
}
@media (max-width:991.98px){
  :root{--nav-h:116px}
  .topbar-inner{height:64px;gap:14px}
  .brand-text{font-size:16px}
  .page-hero-inner{grid-template-columns:1fr;gap:28px;padding:36px 0 40px}
  .page-hero h1{font-size:32px}
  .hero-lead{font-size:16px}
  .section{padding:64px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:26px}
  .alt-row{grid-template-columns:1fr;gap:26px;padding:28px 0}
  .alt-row.reverse .alt-media{order:0}
  .alt-copy h2{font-size:24px}
  .track{grid-template-columns:repeat(2,1fr)}
  .track::before{display:none}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:56px 0}
  .cta-inner h2{font-size:26px}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .qa-grid{grid-template-columns:1fr}
  .page-hero h1{font-size:28px}
  .section{padding:52px 0}
  .section-head h2{font-size:23px}
  .alt-copy h2{font-size:22px}
  .track{grid-template-columns:1fr}
  .accordion-button{font-size:16px;padding:18px 40px 18px 16px}
  .cta-form{padding:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  :root{--nav-h:112px}
  .container-xxl{padding-left:16px;padding-right:16px}
  .brand-text{font-size:15px}
  .brand-mark{width:30px;height:30px}
  .page-hero h1{font-size:26px}
  .btn-main,.btn-ghost{height:44px;padding:0 18px;font-size:14px}
  .section-head h2{font-size:22px}
  .cta-inner h2{font-size:22px}
}