/* roulang page: index */
:root{
  --c-primary:#1C6DD0;
  --c-primary-dark:#123A78;
  --c-accent:#FF6A2B;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E4EBF6;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B84;
  --c-success:#12B981;
  --c-warn:#E8A317;
  --c-err:#D93F3F;
  --c-primary-soft:#E8F1FE;
  --c-accent-soft:#FFF1EA;
  --r-card:16px;
  --r-input:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,120,.05),0 6px 18px rgba(18,58,120,.06);
  --sh-2:0 10px 28px rgba(18,58,120,.10);
  --sh-3:0 1px 0 var(--c-line);
  --ease:.18s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;background:var(--c-bg);color:var(--c-text);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(28,109,208,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:600;border:1px solid transparent;cursor:pointer;transition:var(--ease);white-space:nowrap;text-align:center}
.btn-primary{background:var(--c-accent);color:#fff;height:46px;padding:0 24px;font-size:15px;box-shadow:0 6px 16px rgba(255,106,43,.28)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,43,.32)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-line);height:46px;padding:0 22px;font-size:15px}
.btn-secondary:hover{border-color:var(--c-primary);background:#F6FAFF;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 2px;height:44px;font-size:15px}
.btn-ghost:hover{gap:12px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:var(--sh-3)}
.nav-bar{height:68px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:9px;flex:none}
.brand-mark{width:26px;height:26px;flex:none;color:var(--c-primary)}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--c-primary-dark);line-height:1}
.brand-tag{font-size:11.5px;font-weight:600;color:var(--c-primary);background:var(--c-primary-soft);padding:4px 9px;border-radius:var(--r-pill);line-height:1.3;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{position:relative;padding:10px 12px;font-size:16px;color:var(--c-text-2);border-radius:8px;transition:var(--ease)}
.nav-links a:hover{color:var(--c-primary);background:#F2F7FE}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);width:20px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.search{position:relative;display:flex;align-items:center}
.search svg{position:absolute;left:14px;width:16px;height:16px;color:var(--c-text-2);pointer-events:none}
.search input{height:40px;width:230px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#F7FAFE;padding:0 16px 0 38px;font-size:14px;transition:var(--ease)}
.search input::placeholder{color:#93A1B6}
.search input:hover{border-color:#CFDCEE}
.search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(28,109,208,.14)}
.nav-login{font-size:15px;color:var(--c-text-2);transition:var(--ease);padding:6px 2px}
.nav-login:hover{color:var(--c-primary)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;opacity:0;transition:opacity .22s ease,visibility .22s}
.drawer.open{visibility:visible;opacity:1}
.drawer-mask{position:absolute;inset:0;background:rgba(15,27,45,.45)}
.drawer-panel{position:absolute;right:0;top:0;bottom:0;width:min(86vw,340px);background:#fff;border-radius:20px 0 0 20px;padding:22px;transform:translateX(100%);transition:transform .26s ease;overflow:auto}
.drawer.open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);background:#fff;font-size:18px;line-height:1;cursor:pointer;color:var(--c-text-2)}
.drawer-close:hover{color:var(--c-primary);border-color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-nav a{padding:12px 14px;border-radius:10px;font-size:16px;color:var(--c-text-2);transition:var(--ease)}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.drawer .search input{width:100%}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:18px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;background:linear-gradient(180deg,#EFF5FE 0%,#F5F8FD 62%,#F5F8FD 100%)}
.hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;opacity:.10;pointer-events:none}
.hero-ring{position:absolute;right:-180px;top:-220px;width:720px;height:720px;border-radius:50%;border:1px solid rgba(28,109,208,.10);box-shadow:0 0 0 70px rgba(28,109,208,.035),0 0 0 150px rgba(28,109,208,.022);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);color:var(--c-primary);font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);box-shadow:var(--sh-1)}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--c-success);display:inline-block}
.hero h1{margin-top:20px;font-size:46px;line-height:1.24;font-weight:800;letter-spacing:-.01em;color:var(--c-primary-dark)}
.hero h1 .hl{color:var(--c-primary)}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-stats{display:flex;margin-top:38px;flex-wrap:wrap;row-gap:18px}
.hero-stats .stat{padding:0 26px;border-left:1px solid var(--c-line)}
.hero-stats .stat:first-child{padding-left:0;border-left:0}
.stat-num{font-size:28px;font-weight:800;color:var(--c-primary);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-label{font-size:12.5px;color:var(--c-text-2);margin-top:4px}
.hero-visual{position:relative}
.hero-figure{border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);background:#fff}
.hero-figure img{width:100%;height:384px;object-fit:cover}
.hero-float{position:absolute;left:-26px;bottom:-30px;background:#fff;border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--sh-2);padding:14px 18px;display:flex;gap:12px;align-items:center;max-width:308px}
.hero-float .ico{width:36px;height:36px;border-radius:10px;background:var(--c-accent-soft);color:var(--c-accent);display:grid;place-items:center;flex:none;font-weight:800;font-size:15px}
.hero-float strong{display:block;font-size:14px;font-weight:700;color:var(--c-text);line-height:1.5}
.hero-float span{font-size:12.5px;color:var(--c-text-2);line-height:1.5}

/* ============ 信任条 ============ */
.trust{padding:26px 0 6px}
.trust-inner{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.trust-label{font-size:13px;color:var(--c-text-2);margin-right:4px}
.trust-pill{background:#EDF2FA;color:var(--c-text-2);font-size:13.5px;padding:8px 16px;border-radius:var(--r-pill);opacity:.85;transition:var(--ease)}
.trust-pill:hover{opacity:1;color:var(--c-primary);background:var(--c-primary-soft)}

/* ============ 通用板块 ============ */
.section{padding:84px 0}
.section-tight{padding:64px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-accent);text-transform:uppercase}
.section h2{font-size:32px;line-height:1.32;font-weight:700;color:var(--c-primary-dark);margin-top:12px}
.section-lead{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--c-text-2)}
.tag{display:inline-block;background:var(--c-primary-soft);color:var(--c-primary);font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);margin-right:8px;margin-top:10px}
.tag-accent{background:var(--c-accent-soft);color:var(--c-accent)}

/* ============ 痛点编号列表 ============ */
.why-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.why-list{display:flex;flex-direction:column}
.why-item{display:flex;gap:20px;align-items:flex-start;padding:26px 0;border-top:1px dashed var(--c-line);transition:var(--ease)}
.why-item:first-child{border-top:0;padding-top:0}
.why-item:hover .why-title{color:var(--c-primary)}
.why-num{font-size:22px;font-weight:800;color:var(--c-accent);line-height:1.25;flex:none;font-variant-numeric:tabular-nums}
.why-body{flex:1}
.why-title{font-size:18px;font-weight:700;color:var(--c-text);transition:var(--ease)}
.why-desc{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--c-text-2)}
.why-arrow{flex:none;color:#B9C7DA;transition:var(--ease);margin-top:4px}
.why-item:hover .why-arrow{color:var(--c-accent);transform:translateX(4px)}

/* ============ 图文交替 ============ */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:56px}
.duo:first-of-type{margin-top:44px}
.duo.reverse .duo-media{order:2}
.duo-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);background:#fff}
.duo-media img{width:100%;height:340px;object-fit:cover;transition:transform .5s ease}
.duo-media:hover img{transform:scale(1.03)}
.duo-body h3{font-size:23px;font-weight:700;color:var(--c-primary-dark);line-height:1.4}
.duo-body p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--c-text-2)}
.duo-link{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:15px;font-weight:600;color:var(--c-primary);transition:var(--ease)}
.duo-link:hover{gap:12px;color:var(--c-accent)}

/* ============ 数据带 ============ */
.stats-band{background:#EDF4FE;border-radius:20px;padding:48px 44px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stats-grid .num{font-size:36px;font-weight:800;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums}
.stats-grid .lab{margin-top:8px;font-size:13px;line-height:1.7;color:var(--c-text-2)}
.band-bar{margin-top:34px;height:6px;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--c-primary) 0%,var(--c-primary) 62%,var(--c-accent) 100%)}

/* ============ 证言 ============ */
.voice-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:44px}
.voice-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1);transition:var(--ease)}
.voice-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.voice-card:nth-child(2){margin-top:34px}
.voice-quote{border-left:3px solid var(--c-accent);padding-left:18px;font-size:15px;line-height:1.9;color:var(--c-text)}
.voice-meta{display:flex;align-items:center;gap:12px;margin-top:24px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);display:grid;place-items:center;font-weight:700;font-size:15px;flex:none}
.voice-name{font-size:15px;font-weight:600;color:var(--c-text);line-height:1.5}
.voice-org{font-size:12.5px;color:var(--c-text-2);line-height:1.5}

/* ============ 最新信息 ============ */
.latest-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.post-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.post-card{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:var(--ease)}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(28,109,208,.22)}
.post-card h3{font-size:19px;font-weight:700;line-height:1.5;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{font-size:14px;line-height:1.78;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#8A99B0;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line)}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:#C3CFE0}
.post-more{margin-left:auto;color:var(--c-primary);font-weight:600}
.post-card:hover .post-more{color:var(--c-accent)}
.badge{display:inline-block;background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;padding:4px 11px;border-radius:var(--r-pill);align-self:flex-start}
.empty-state{border:1px dashed #C9D8EC;border-radius:var(--r-card);padding:48px 24px;text-align:center;background:#fff;margin-top:36px}
.empty-state .ico{width:48px;height:48px;margin:0 auto 14px;color:rgba(28,109,208,.4)}
.empty-state strong{display:block;font-size:15px;color:var(--c-text)}
.empty-state span{display:block;font-size:13px;color:var(--c-text-2);margin:6px 0 18px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:3fr 9fr;gap:56px;align-items:start}
.faq-side p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:var(--ease)}
.faq-item:hover{border-color:#CFDCEE}
.faq-item.open{border-color:rgba(28,109,208,.3);box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--c-text);cursor:pointer;line-height:1.6}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{flex:none;width:22px;height:22px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);display:grid;place-items:center;font-size:15px;line-height:1;transition:var(--ease);font-weight:700}
.faq-item.open .faq-icon{background:var(--c-accent);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.88;color:var(--c-text-2)}
.faq-a-inner::before{content:"";display:block;height:1px;background:repeating-linear-gradient(90deg,var(--c-line) 0 6px,transparent 6px 12px);margin-bottom:16px}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 84px}
.cta-band{position:relative;overflow:hidden;background:#EDF4FE;border-radius:20px;padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band::after{content:"";position:absolute;right:-120px;bottom:-180px;width:520px;height:520px;border-radius:50%;border:1px solid rgba(28,109,208,.10);box-shadow:0 0 0 56px rgba(28,109,208,.04),0 0 0 120px rgba(28,109,208,.026);pointer-events:none}
.cta-band h2{font-size:30px;line-height:1.35;color:var(--c-primary-dark);font-weight:700}
.cta-band p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--c-text-2);max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:#0E1B33;color:rgba(255,255,255,.7);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-tag{background:rgba(28,109,208,.22);color:#9CC6FF}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.85);margin-bottom:14px}
.footer-list a{display:block;font-size:14px;line-height:2.2;color:rgba(255,255,255,.6);transition:var(--ease)}
.footer-list a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{font-size:14px;line-height:2.2;color:rgba(255,255,255,.6)}
.footer-contact b{color:rgba(255,255,255,.85);font-weight:600}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero h1{font-size:40px}
  .hero-inner{gap:40px}
  .search input{width:180px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links,.nav-right .search,.nav-login{display:none}
  .nav-toggle{display:flex}
  .nav-right{gap:10px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-visual{order:2;max-width:640px}
  .hero-figure img{height:320px}
  .hero-float{left:0;bottom:-24px}
  .why-grid,.faq-grid{grid-template-columns:1fr;gap:32px}
  .duo{grid-template-columns:1fr;gap:28px}
  .duo.reverse .duo-media{order:0}
  .duo-media img{height:280px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .voice-grid{grid-template-columns:1fr}
  .voice-card:nth-child(2){margin-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:68px 0}
  .cta-band{padding:40px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav-bar{height:62px;gap:12px}
  .brand-name{font-size:18px}
  .brand-tag{font-size:11px;padding:3px 8px}
  .hero{padding:48px 0 64px}
  .hero h1{font-size:31px;line-height:1.3}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-stats .stat{padding:0 16px}
  .stat-num{font-size:23px}
  .stat-label{font-size:12px}
  .hero-figure img{height:250px}
  .hero-float{position:static;margin-top:14px;max-width:none;left:auto;bottom:auto}
  .section{padding:56px 0}
  .section h2{font-size:24px}
  .section-lead{font-size:15px}
  .why-item{gap:14px;padding:22px 0}
  .why-title{font-size:17px}
  .duo-body h3{font-size:20px}
  .stats-band{padding:32px 22px}
  .stats-grid{gap:24px}
  .stats-grid .num{font-size:28px}
  .voice-card{padding:24px}
  .post-grid{grid-template-columns:1fr;gap:16px}
  .post-card{padding:22px}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a-inner{padding:0 18px 20px}
  .cta-wrap{padding:0 0 56px}
  .cta-band{padding:30px 22px;border-radius:16px}
  .cta-band h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .site-footer{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:32px}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .hero-eyebrow{font-size:12px}
  .brand-tag{display:none}
  .hero-stats{flex-direction:column;gap:14px}
  .hero-stats .stat{padding-left:0;border-left:0}
  .stats-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions,.cta-actions{flex-direction:column}
  .faq-q{font-size:15px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1C6DD0;
  --c-primary-dark:#123A78;
  --c-primary-soft:#E8F1FE;
  --c-primary-band:#EDF4FE;
  --c-accent:#FF6A2B;
  --c-accent-soft:#FFF1EA;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E4EBF6;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B84;
  --c-success:#12B981;
  --c-warn:#E8A317;
  --c-error:#D93F3F;
  --sh-1:0 1px 2px rgba(18,58,120,.05),0 6px 18px rgba(18,58,120,.06);
  --sh-2:0 10px 28px rgba(18,58,120,.10);
  --sh-3:0 1px 0 var(--c-line);
  --r-card:16px;
  --r-field:10px;
  --r-pill:999px;
  --r-img:12px;
  --r-banner:20px;
  --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(28,109,208,.35);border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--c-surface);
  box-shadow:var(--sh-3);
}
.nav-bar{
  height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--c-text);
  flex-shrink:0;
}
.brand:hover{color:var(--c-text);}
.brand-mark{width:24px;height:24px;color:var(--c-primary);flex-shrink:0;}
.brand-name{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-primary-dark);
  line-height:1;
}
.brand-tag{
  font-size:11.5px;
  font-weight:600;
  line-height:1;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  padding:5px 9px;
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
}
.nav-links a{
  position:relative;
  font-size:17px;
  color:var(--c-text-2);
  padding:22px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:14px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:translateX(-50%);
  transition:width .18s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{width:20px;}
.nav-links a.active{color:var(--c-primary);font-weight:600;}
.nav-links a.active::after{width:20px;}
.nav-right{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.search{
  position:relative;
  width:240px;
  display:flex;
  align-items:center;
}
.search svg{
  position:absolute;
  left:14px;
  width:17px;
  height:17px;
  color:var(--c-text-2);
  pointer-events:none;
}
.search input{
  width:100%;
  height:40px;
  padding:0 14px 0 38px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  background:#F8FAFE;
  font-size:14px;
  color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search input::placeholder{color:#93A2B8;}
.search input:focus{
  outline:none;
  background:var(--c-surface);
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(28,109,208,.14);
}
.nav-login{
  font-size:15px;
  color:var(--c-text-2);
  white-space:nowrap;
}
.nav-login:hover{color:var(--c-primary);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-weight:600;
  border-radius:var(--r-pill);
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
  padding:13px 26px;
  font-size:16px;
  box-shadow:0 6px 16px rgba(255,106,43,.24);
}
.btn-primary:hover{background:#FF7C45;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,43,.28);}
.btn-primary:active{transform:translateY(0);background:#F05C1E;}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn-sm{padding:10px 22px;font-size:15px;height:40px;}
.btn-ghost{
  background:var(--c-surface);
  color:var(--c-primary);
  border:1px solid var(--c-line);
  padding:12px 24px;
  font-size:15px;
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-dark);background:var(--c-primary-soft);}
.btn-text{
  color:var(--c-primary);
  font-size:15px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.btn-text svg{width:16px;height:16px;transition:transform .18s ease;}
.btn-text:hover svg{transform:translateX(4px);}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--c-line);
  border-radius:10px;
  align-items:center;
  justify-content:center;
  background:var(--c-surface);
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--c-primary-dark);
  border-radius:2px;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--c-primary-dark);
  border-radius:2px;
  transition:transform .18s ease,top .18s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
/* 移动抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(15,27,45,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
  z-index:200;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;
  right:0;
  width:min(320px,86vw);
  height:100%;
  background:var(--c-surface);
  border-top-left-radius:20px;
  border-bottom-left-radius:20px;
  padding:24px;
  transform:translateX(104%);
  transition:transform .24s ease;
  z-index:201;
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-text-2);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:13px 14px;
  border-radius:10px;
  font-size:16px;
  color:var(--c-text-2);
}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-nav a.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.drawer .search{width:100%;}
.drawer .btn{width:100%;}
/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  padding:6px 14px;
  border-radius:var(--r-pill);
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
h1{font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--c-primary-dark);}
h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--c-text);}
.lead{font-size:16px;line-height:1.85;color:var(--c-text-2);margin-top:16px;}
.muted{color:var(--c-text-2);font-size:14px;line-height:1.8;}
/* ---------- 面包屑 ---------- */
.crumb{
  padding:20px 0;
  font-size:13px;
  color:var(--c-text-2);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#B7C4D6;}
.crumb .current{color:var(--c-primary);font-weight:600;}
/* ---------- Banner ---------- */
.banner{
  position:relative;
  border-radius:var(--r-banner);
  overflow:hidden;
  min-height:220px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(100deg,rgba(18,58,120,.88),rgba(28,109,208,.55)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  padding:44px 48px;
  box-shadow:var(--sh-1);
}
.banner::after{
  content:"";
  position:absolute;
  right:-60px;
  bottom:-120px;
  width:420px;
  height:420px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 40px rgba(255,255,255,.05),0 0 0 80px rgba(255,255,255,.04);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;max-width:720px;}
.banner h1{color:#fff;font-size:38px;}
.banner p{color:rgba(255,255,255,.86);font-size:15px;line-height:1.8;margin-top:14px;max-width:620px;}
.banner .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner .banner-tags span{
  font-size:13px;
  color:#fff;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.22);
  padding:5px 14px;
  border-radius:var(--r-pill);
}
/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.filter-bar .filter-label{
  font-size:13px;
  color:var(--c-text-2);
  margin-right:4px;
}
.chip{
  font-size:14px;
  color:var(--c-text-2);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  padding:8px 18px;
  border-radius:var(--r-pill);
  transition:all .18s ease;
  cursor:pointer;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip.active{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  box-shadow:0 6px 16px rgba(28,109,208,.22);
}
/* ---------- 时间线 ---------- */
.timeline{position:relative;display:flex;flex-direction:column;gap:0;}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:104px 28px 1fr;
  gap:0;
  padding-bottom:28px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-date{
  text-align:right;
  padding-right:16px;
  padding-top:18px;
}
.tl-date .day{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--c-primary);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.tl-date .sub{
  display:block;
  font-size:12.5px;
  color:var(--c-text-2);
  margin-top:6px;
  line-height:1.5;
}
.tl-rail{
  position:relative;
  display:flex;
  justify-content:center;
}
.tl-rail::before{
  content:"";
  position:absolute;
  top:0;
  bottom:-28px;
  width:2px;
  background:var(--c-line);
}
.tl-item:last-child .tl-rail::before{display:none;}
.tl-rail .node{
  position:relative;
  z-index:1;
  width:14px;
  height:14px;
  border-radius:50%;
  background:var(--c-surface);
  border:3px solid var(--c-primary);
  margin-top:24px;
}
.tl-item.highlight .tl-rail .node{border-color:var(--c-accent);background:var(--c-accent);}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px 28px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.tl-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(28,109,208,.25);
}
.tl-card .tl-top{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.badge{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:6px 12px;
  border-radius:var(--r-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
}
.badge-accent{background:var(--c-accent-soft);color:#E4551A;}
.badge-line{background:#F4F7FC;color:var(--c-text-2);border:1px solid var(--c-line);}
.tl-card h3{font-size:19px;margin-bottom:8px;}
.tl-card p{font-size:14px;line-height:1.8;color:var(--c-text-2);}
.tl-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:16px;
  font-size:12.5px;
  color:var(--c-text-2);
}
.tl-meta .sep{color:#C6D2E2;}
/* ---------- 数据带 ---------- */
.stats-band{
  background:var(--c-primary-band);
  border-radius:var(--r-banner);
  padding:44px 40px 36px;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-item{text-align:left;}
.stat-num{
  font-size:36px;
  font-weight:800;
  color:var(--c-primary);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat-num small{font-size:16px;font-weight:700;margin-left:2px;}
.stat-label{font-size:13px;color:var(--c-text-2);margin-top:8px;}
.stat-bar{
  margin-top:32px;
  height:6px;
  border-radius:var(--r-pill);
  background:rgba(28,109,208,.14);
  overflow:hidden;
}
.stat-bar span{
  display:block;
  height:100%;
  width:78%;
  border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
/* ---------- 能力卡 2x2 ---------- */
.card-grid-2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.feature-card{
  display:flex;
  gap:20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(28,109,208,.25);}
.feature-thumb{
  width:136px;
  height:100px;
  flex-shrink:0;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--c-primary-soft);
}
.feature-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.feature-body h3{font-size:18px;margin-bottom:8px;}
.feature-body p{font-size:14px;line-height:1.8;color:var(--c-text-2);}
.feature-body .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  font-size:12px;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--r-pill);
  padding:4px 12px;
}
/* ---------- 编号列表 ---------- */
.num-list{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:12px 28px;
}
.num-item{
  display:flex;
  gap:20px;
  padding:24px 0;
  border-bottom:1px dashed var(--c-line);
  align-items:flex-start;
}
.num-item:last-child{border-bottom:0;}
.num-index{
  font-size:22px;
  font-weight:800;
  color:var(--c-accent);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  flex-shrink:0;
  width:34px;
}
.num-item h3{font-size:18px;margin-bottom:6px;}
.num-item p{font-size:14.5px;line-height:1.8;color:var(--c-text-2);}
/* ---------- 流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.flow-step{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:28px;
  position:relative;
  transition:box-shadow .18s ease,transform .18s ease;
}
.flow-step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.flow-step .step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:16px;
  font-weight:800;
  margin-bottom:16px;
}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:14px;line-height:1.8;color:var(--c-text-2);}
/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.active{border-color:rgba(28,109,208,.3);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
}
.faq-q .ico{
  flex-shrink:0;
  width:22px;
  height:22px;
  border-radius:50%;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:15px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .18s ease,background .18s ease,color .18s ease;
}
.faq-item.active .faq-q .ico{background:var(--c-primary);color:#fff;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-item.active .faq-a{max-height:420px;}
.faq-a-inner{
  padding:0 24px 22px;
  border-top:1px dashed var(--c-line);
  margin-top:0;
  padding-top:16px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
}
/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:linear-gradient(120deg,#EAF2FE 0%,#F3F8FF 60%,#FFF4EE 100%);
  border-radius:var(--r-banner);
  padding:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  border:1px solid var(--c-line);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  bottom:-140px;
  width:380px;
  height:380px;
  border-radius:50%;
  border:1px solid rgba(28,109,208,.12);
  box-shadow:0 0 0 36px rgba(28,109,208,.05),0 0 0 72px rgba(28,109,208,.035);
  pointer-events:none;
}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px;}
.cta-band h2{font-size:30px;}
.cta-band p{font-size:14.5px;color:var(--c-text-2);margin-top:12px;line-height:1.8;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}
/* ---------- 相关频道 ---------- */
.rel-links{
  border-top:1px solid var(--c-line);
  padding-top:28px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.rel-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:18px 22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  transition:all .18s ease;
}
.rel-link svg{width:16px;height:16px;color:var(--c-primary);transition:transform .18s ease;flex-shrink:0;}
.rel-link:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1);}
.rel-link:hover svg{transform:translateX(4px);}
/* ---------- 页脚 ---------- */
.site-footer{
  background:#0E1B33;
  color:rgba(255,255,255,.6);
  padding:64px 0 28px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-tag{background:rgba(91,155,240,.16);color:#9CC4F7;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:340px;}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.82);
  margin-bottom:16px;
}
.footer-list{display:flex;flex-direction:column;}
.footer-list a{
  font-size:14px;
  color:rgba(255,255,255,.6);
  line-height:2.2;
}
.footer-list a:hover{color:#fff;}
.footer-contact{display:flex;flex-direction:column;gap:2px;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.6);line-height:2.2;}
.footer-contact b{color:rgba(255,255,255,.8);font-weight:600;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.45);
}
/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding-left:24px;padding-right:24px;}
  .nav-links{gap:20px;}
  .search{width:200px;}
}
@media (max-width:1023px){
  .nav-links,.nav-login,.nav-right .search{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:64px 0;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .banner{min-height:200px;padding:36px 32px;}
  .banner h1{font-size:30px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .card-grid-2{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .rel-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:52px 0;}
  h1{font-size:27px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .banner{min-height:160px;padding:28px 20px;border-radius:16px;}
  .banner h1{font-size:24px;line-height:1.35;}
  .banner p{font-size:14px;margin-top:10px;}
  .banner .banner-tags{margin-top:16px;gap:8px;}
  .banner .banner-tags span{font-size:12px;padding:4px 10px;}
  .tl-item{grid-template-columns:64px 20px 1fr;padding-bottom:22px;}
  .tl-date{padding-right:8px;padding-top:14px;}
  .tl-date .day{font-size:19px;}
  .tl-date .sub{font-size:11.5px;margin-top:4px;}
  .tl-rail .node{width:12px;height:12px;border-width:2px;margin-top:18px;}
  .tl-card{padding:20px;}
  .tl-card h3{font-size:17px;}
  .feature-card{flex-direction:column;gap:16px;}
  .feature-thumb{width:100%;height:150px;}
  .stats-band{padding:28px 20px;}
  .stat-num{font-size:28px;}
  .num-list{padding:8px 18px;}
  .num-item{gap:14px;padding:20px 0;}
  .flow-step{padding:22px;}
  .faq-q{font-size:15.5px;padding:16px 18px;}
  .faq-a-inner{padding:14px 18px 18px;font-size:14px;}
  .cta-band{padding:32px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding:48px 0 24px;margin-top:56px;}
  .rel-link{padding:16px 18px;font-size:14px;}
}
@media (max-width:420px){
  .filter-bar .chip{font-size:13px;padding:7px 13px;}
  .brand-tag{font-size:10.5px;padding:4px 8px;}
  .brand-name{font-size:18px;}
  .cta-actions{flex-direction:column;}
}

/* roulang page: article */
:root{
  --c-primary:#1C6DD0;
  --c-primary-dark:#123A78;
  --c-accent:#FF6A2B;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E4EBF6;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B84;
  --c-success:#12B981;
  --c-warn:#E8A317;
  --c-danger:#D93F3F;
  --r-card:16px;
  --r-input:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,120,.05),0 6px 18px rgba(18,58,120,.06);
  --sh-2:0 10px 28px rgba(18,58,120,.10);
  --sh-3:0 1px 0 var(--c-line);
  --container:1200px;
  --pad-x:32px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--c-text);
  background:var(--c-bg);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
body.nav-open::before{
  content:"";
  position:fixed;
  inset:0;
  background:rgba(15,27,45,.45);
  z-index:110;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:3px solid rgba(28,109,208,.35);outline-offset:2px}
::selection{background:rgba(28,109,208,.18)}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:#fff;
  box-shadow:var(--sh-3);
}
.nav-bar{
  height:68px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  flex-shrink:0;
  min-width:0;
}
.brand-mark{
  width:26px;
  height:26px;
  color:var(--c-primary);
  flex:none;
}
.brand-name{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-primary-dark);
  white-space:nowrap;
}
.brand-tag{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 8px;
  border-radius:var(--r-pill);
  background:#E8F1FE;
  color:var(--c-primary);
  font-size:11.5px;
  font-weight:600;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1;
  min-width:0;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:22px 12px;
  font-size:15.5px;
  font-weight:500;
  color:var(--c-text-2);
  white-space:nowrap;
  transition:color .18s ease, background .18s ease;
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:10px;
  width:20px;
  height:2px;
  margin-left:-10px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:none;
}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:40px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  background:#FAFCFF;
  color:var(--c-text-2);
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.search:focus-within{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(28,109,208,.12);
  background:#fff;
}
.search svg{width:17px;height:17px;flex:none}
.search input{
  width:100%;
  min-width:0;
  border:0;
  outline:0;
  background:transparent;
  color:var(--c-text);
  font-size:13.5px;
}
.search input::placeholder{color:#8D9AB0}
.nav-login{
  font-size:14px;
  font-weight:500;
  color:var(--c-text-2);
  white-space:nowrap;
  transition:color .18s ease;
}
.nav-login:hover{color:var(--c-primary)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  text-align:center;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 8px 18px rgba(255,106,43,.22);
}
.btn-primary:hover{
  background:#FF7C45;
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(255,106,43,.28);
}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{
  background:#fff;
  color:var(--c-primary);
  border-color:var(--c-line);
}
.btn-secondary:hover{
  border-color:var(--c-primary);
  background:#F7FAFF;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-ghost{
  height:auto;
  padding:0;
  border:0;
  border-radius:0;
  background:transparent;
  color:var(--c-primary);
  font-weight:600;
  box-shadow:none;
}
.btn-ghost span{
  display:inline-block;
  transition:transform .18s ease;
}
.btn-ghost:hover{color:#1559AE}
.btn-ghost:hover span{transform:translateX(4px)}
.btn:disabled{opacity:.45;pointer-events:none}
.nav-toggle{
  display:none;
  position:relative;
  z-index:140;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  background:#fff;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after{
  content:"";
  position:absolute;
  left:11px;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--c-text);
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle::before{top:14px}
.nav-toggle span{top:20px}
.nav-toggle::after{top:26px}
body.nav-open .nav-toggle::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span{opacity:0}
body.nav-open .nav-toggle::after{transform:translateY(-6px) rotate(-45deg)}
body.nav-open .site-header{z-index:130}

/* ============ Breadcrumb ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:22px 0;
  font-size:13px;
  color:var(--c-text-2);
}
.breadcrumb a{transition:color .18s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B4C0D4}
.breadcrumb .current{
  color:var(--c-primary);
  font-weight:600;
  max-width:78%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ============ Article layout ============ */
main{min-height:60vh}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:36px;
  align-items:start;
  padding-bottom:36px;
}
.article-main{
  min-width:0;
  padding:36px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:20px;
  box-shadow:var(--sh-1);
}
.article-header h1{
  margin:18px 0 16px;
  color:var(--c-primary-dark);
  font-size:36px;
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.02em;
  word-break:break-word;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:4px 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  line-height:1.4;
}
.badge-primary{
  background:#E8F1FE;
  color:var(--c-primary);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-bottom:22px;
  border-bottom:1px solid var(--c-line);
  color:var(--c-text-2);
  font-size:13px;
}
.article-meta strong{
  color:var(--c-text);
  font-weight:600;
}
.dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:#B4C0D4;
  flex:none;
}
.article-cover{
  margin-top:24px;
  overflow:hidden;
  border-radius:14px;
  background:#E8F1FE;
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}

/* ============ Article body ============ */
.article-body{
  max-width:760px;
  margin:0 auto;
  padding:28px 0 8px;
  font-size:16px;
  line-height:1.95;
  color:var(--c-text);
  overflow-wrap:anywhere;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  position:relative;
  margin:2em 0 .8em;
  padding-left:16px;
  color:var(--c-primary-dark);
  font-size:26px;
  font-weight:700;
  line-height:1.4;
  scroll-margin-top:90px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  width:4px;
  height:1em;
  border-radius:2px;
  background:var(--c-primary);
}
.article-body h3{
  margin:1.7em 0 .7em;
  color:var(--c-text);
  font-size:20px;
  font-weight:700;
  line-height:1.5;
}
.article-body h4{
  margin:1.5em 0 .6em;
  color:var(--c-primary-dark);
  font-size:17px;
  font-weight:700;
}
.article-body ul{
  margin:0 0 1.25em;
  padding-left:0;
}
.article-body ul li{
  position:relative;
  margin:.45em 0;
  padding-left:18px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-primary);
}
.article-body ol{
  margin:0 0 1.25em;
  padding-left:1.4em;
}
.article-body ol li{
  margin:.45em 0;
  padding-left:.25em;
}
.article-body ol li::marker{
  color:var(--c-primary);
  font-weight:700;
}
.article-body a{
  color:var(--c-primary);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-body strong{font-weight:700;color:var(--c-primary-dark)}
.article-body blockquote{
  margin:1.8em 0;
  padding:20px 22px;
  border-left:3px solid var(--c-accent);
  border-radius:0 12px 12px 0;
  background:#FFF7F2;
  color:#4E3A30;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  margin:1.6em auto;
  border-radius:var(--r-img);
}
.article-body figure{margin:1.8em 0}
.article-body figure img{margin:0 auto}
.article-body figcaption{
  margin-top:10px;
  color:var(--c-text-2);
  font-size:12.5px;
  text-align:center;
}
.article-body table{
  width:100%;
  margin:1.8em 0;
  border:1px solid var(--c-line);
  border-collapse:collapse;
  border-radius:10px;
  font-size:14px;
}
.article-body th{
  background:#EDF4FE;
  color:var(--c-primary-dark);
  font-weight:700;
  text-align:left;
}
.article-body th,
.article-body td{
  padding:10px 12px;
  border:1px solid var(--c-line);
  vertical-align:top;
}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:#F1F5FB;
  color:var(--c-primary-dark);
  font-size:.92em;
}
.article-body pre{
  margin:1.8em 0;
  padding:18px;
  overflow:auto;
  border-radius:12px;
  background:#0E1B33;
  color:#DCE8FA;
  font-size:13px;
  line-height:1.7;
}
.article-body pre code{
  padding:0;
  background:transparent;
  color:inherit;
}
.article-body hr{
  margin:2em 0;
  border:0;
  border-top:1px solid var(--c-line);
}
.article-body iframe{max-width:100%;border-radius:12px}
.article-body .empty-state h3{
  margin:0 0 16px;
  color:var(--c-text);
  font-size:18px;
}
.empty-state{
  padding:48px 24px;
  border:1px dashed #C9D6EA;
  border-radius:var(--r-card);
  background:#FBFCFF;
  text-align:center;
}
.empty-icon{
  width:48px;
  height:48px;
  margin:0 auto 14px;
  color:var(--c-primary);
  opacity:.4;
}
.empty-state h3{
  margin:0 0 6px;
  color:var(--c-text);
  font-size:18px;
}
.empty-state p{
  margin:0 0 18px;
  color:var(--c-text-2);
  font-size:13.5px;
}

/* ============ Article actions ============ */
.article-actions{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:20px;
  padding-top:22px;
  border-top:1px solid var(--c-line);
}
.link-back{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--c-primary);
  font-size:14px;
  font-weight:600;
}
.link-back svg{
  width:16px;
  height:16px;
  transition:transform .18s ease;
}
.link-back:hover svg{transform:translateX(-4px)}
.share-group{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  background:#fff;
  color:var(--c-text-2);
  transition:border-color .18s ease, color .18s ease, background .18s ease, transform .18s ease;
}
.icon-btn:hover{
  border-color:var(--c-primary);
  background:#F7FAFF;
  color:var(--c-primary);
  transform:translateY(-1px);
}
.icon-btn svg{width:18px;height:18px}

/* ============ Related ============ */
.related{margin-top:40px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:18px;
}
.section-head h2{
  margin:0;
  color:var(--c-primary-dark);
  font-size:24px;
  font-weight:700;
  line-height:1.3;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
}
.related-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  min-width:0;
  padding:12px;
  border:1px solid var(--c-line);
  border-radius:14px;
  background:#fff;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.related-card:hover{
  transform:translateY(-2px);
  border-color:rgba(28,109,208,.25);
  box-shadow:var(--sh-2);
}
.related-card img{
  width:100%;
  aspect-ratio:16/9;
  border-radius:10px;
  object-fit:cover;
}
.related-card h3{
  display:-webkit-box;
  overflow:hidden;
  margin:0;
  color:var(--c-text);
  font-size:15px;
  font-weight:600;
  line-height:1.6;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.related-meta{
  color:var(--c-text-2);
  font-size:12.5px;
}

/* ============ Sidebar ============ */
.article-sidebar{
  position:sticky;
  top:88px;
  display:flex;
  flex-direction:column;
  gap:20px;
  min-width:0;
}
.side-card{
  padding:22px;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  box-shadow:var(--sh-1);
}
.side-title{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 16px;
  color:var(--c-primary-dark);
  font-size:16px;
  font-weight:700;
  line-height:1.4;
}
.side-title::before{
  content:"";
  width:3px;
  height:16px;
  border-radius:2px;
  background:var(--c-accent);
  flex:none;
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:#F1F6FD;
  color:var(--c-primary);
  font-size:12.5px;
  font-weight:500;
  transition:background .18s ease, transform .18s ease;
}
.tag:hover{
  background:#E1EDFD;
  transform:translateY(-1px);
}
.hot-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  counter-reset:hot;
}
.hot-item{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--c-text);
  font-size:14px;
  line-height:1.65;
  transition:color .18s ease;
}
.hot-item:hover{color:var(--c-primary)}
.hot-item::before{
  counter-increment:hot;
  content:counter(hot,decimal-leading-zero);
  flex:none;
  color:var(--c-accent);
  font-size:12px;
  font-weight:800;
  line-height:1.9;
}
.hot-item span{
  display:-webkit-box;
  overflow:hidden;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.consult-card{
  padding:22px;
  border:1px solid #D7E5FA;
  border-radius:var(--r-card);
  background:linear-gradient(180deg,#EDF4FE 0%,#F7FAFF 100%);
}
.consult-card h3{
  margin:0 0 8px;
  color:var(--c-primary-dark);
  font-size:17px;
  font-weight:700;
  line-height:1.4;
}
.consult-card p{
  margin:0 0 16px;
  color:var(--c-text-2);
  font-size:13px;
  line-height:1.75;
}
.consult-card .btn{width:100%}

/* ============ FAQ ============ */
.faq-section{padding:16px 0 72px}
.faq-layout{
  display:grid;
  grid-template-columns:320px minmax(0,1fr);
  gap:36px;
  align-items:start;
}
.faq-intro h2{
  margin:0 0 14px;
  color:var(--c-primary-dark);
  font-size:30px;
  font-weight:700;
  line-height:1.35;
}
.faq-intro p{
  margin:0 0 20px;
  color:var(--c-text-2);
  font-size:14.5px;
  line-height:1.85;
}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  overflow:hidden;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--sh-1);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  color:var(--c-text);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  display:flex;
  align-items:center;
  justify-content:center;
  width:24px;
  height:24px;
  border-radius:50%;
  background:#EDF4FE;
  color:var(--c-primary);
  font-size:18px;
  line-height:1;
  flex:none;
  transition:background .2s ease, color .2s ease;
}
.faq-item[open] summary::after{
  content:"−";
  background:var(--c-primary);
  color:#fff;
}
.faq-content{
  padding:16px 22px 20px;
  border-top:1px dashed var(--c-line);
  color:var(--c-text-2);
  font-size:15px;
  line-height:1.85;
}
.faq-content p + p{margin-top:10px}

/* ============ CTA ============ */
.cta-section{padding:0 0 88px}
.cta-band{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  overflow:hidden;
  padding:48px;
  border-radius:20px;
  background-color:#1C6DD0;
  background-image:linear-gradient(120deg,rgba(28,109,208,.96),rgba(18,58,120,.94)),url('/assets/images/backpic/back-2.webp');
  background-position:center;
  background-size:cover;
  color:#fff;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-80px;
  width:260px;
  height:260px;
  border:30px solid rgba(255,255,255,.06);
  border-radius:50%;
  pointer-events:none;
}
.cta-band > div{position:relative;z-index:1}
.cta-band h2{
  margin:0 0 10px;
  color:#fff;
  font-size:30px;
  font-weight:700;
  line-height:1.35;
}
.cta-band p{
  margin:0;
  color:rgba(255,255,255,.78);
  font-size:15px;
  line-height:1.8;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  flex:none;
}
.cta-band .btn-secondary{
  border-color:#fff;
  background:#fff;
  color:var(--c-primary);
}
.cta-band .btn-secondary:hover{
  background:#EDF4FE;
  border-color:#EDF4FE;
}
.cta-band .btn-primary{box-shadow:none}

/* ============ Footer ============ */
.site-footer{
  padding-top:56px;
  background:#0E1B33;
  color:rgba(255,255,255,.62);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .brand{flex-wrap:wrap}
.footer-brand .brand-mark{color:#5B9BF0}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-tag{
  background:rgba(91,155,240,.16);
  color:#9CC3F5;
}
.footer-desc{
  max-width:360px;
  margin:16px 0 0;
  color:rgba(255,255,255,.58);
  font-size:13.5px;
  line-height:1.9;
}
.footer-title{
  margin-bottom:14px;
  color:rgba(255,255,255,.85);
  font-size:14px;
  font-weight:600;
}
.footer-list{display:flex;flex-direction:column;gap:2px}
.footer-list a{
  display:inline-block;
  padding:6px 0;
  color:rgba(255,255,255,.6);
  font-size:14px;
  line-height:1.6;
  transition:color .18s ease, transform .18s ease;
}
.footer-list a:hover{
  color:#fff;
  transform:translateX(2px);
}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin:0;
  padding:0;
  color:rgba(255,255,255,.6);
  font-size:13.5px;
  line-height:1.8;
  list-style:none;
}
.footer-contact b{
  color:rgba(255,255,255,.82);
  font-weight:600;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:20px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.42);
  font-size:12.5px;
  line-height:1.8;
}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:28px}
  .article-main{padding:30px}
  .search{width:200px}
  .nav-links a{padding-left:10px;padding-right:10px}
}
@media (max-width:1150px){
  .nav-login{display:none}
  .search{width:180px}
  .nav-links a{font-size:14.5px;padding-left:8px;padding-right:8px}
}
@media (max-width:1023px){
  :root{--pad-x:24px}
  .nav-bar{gap:16px}
  .search,.nav-login{display:none}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:fixed;
    top:0;
    right:0;
    z-index:120;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    width:min(86vw,360px);
    height:100vh;
    margin:0;
    padding:88px 24px 32px;
    gap:6px;
    border-radius:20px 0 0 20px;
    background:#fff;
    box-shadow:-20px 0 50px rgba(15,27,45,.18);
    transform:translateX(110%);
    transition:transform .28s ease;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{
    justify-content:flex-start;
    padding:14px 16px;
    border-radius:var(--r-input);
    font-size:16px;
  }
  .nav-links a.active{background:#EDF4FE}
  .nav-links a.active::after{display:none}
  .article-layout{grid-template-columns:1fr}
  .article-sidebar{
    position:static;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:16px;
  }
  .consult-card{grid-column:1 / -1}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .faq-intro h2{font-size:26px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{
    flex-direction:column;
    align-items:flex-start;
    padding:36px;
  }
  .cta-actions{width:100%}
}
@media (max-width:767px){
  :root{--pad-x:16px}
  .nav-bar{height:62px;gap:12px}
  .brand-name{font-size:18px}
  .brand-tag{font-size:10.5px;height:21px}
  .article-main{padding:22px 18px;border-radius:16px}
  .article-header h1{font-size:28px}
  .article-meta{font-size:12.5px}
  .article-cover{margin-top:18px}
  .article-body{font-size:15px;line-height:1.9}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .article-sidebar{grid-template-columns:1fr}
  .consult-card{grid-column:auto}
  .faq-item summary{font-size:15.5px;padding:16px 18px}
  .faq-content{padding:14px 18px 18px;font-size:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:28px 22px}
  .cta-band h2{font-size:24px}
  .cta-actions .btn{flex:1}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .article-actions{flex-direction:column;align-items:flex-start}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:520px){
  .article-main{padding:18px 14px}
  .article-header h1{font-size:24px}
  .article-meta{font-size:12px;gap:6px}
  .nav-right{gap:8px}
  .btn-sm{padding:0 16px}
  .faq-section{padding-bottom:56px}
  .cta-section{padding-bottom:64px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .related-card h3{font-size:14px}
  .footer-desc{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition:none!important;
    animation:none!important;
    scroll-behavior:auto!important;
  }
}

/* roulang page: category2 */
:root{
  --c-primary:#1C6DD0;
  --c-primary-dark:#123A78;
  --c-primary-soft:#E8F1FE;
  --c-primary-band:#EDF4FE;
  --c-accent:#FF6A2B;
  --c-accent-soft:#FFF1EA;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E4EBF6;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B84;
  --c-success:#12B981;
  --c-warn:#E8A317;
  --c-error:#D93F3F;
  --r-card:16px;
  --r-input:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,120,.05), 0 6px 18px rgba(18,58,120,.06);
  --sh-2:0 10px 28px rgba(18,58,120,.10);
  --sh-3:0 1px 0 var(--c-line);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(28,109,208,.35);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  box-shadow:var(--sh-3);
}
.nav-bar{
  display:flex;
  align-items:center;
  gap:32px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--c-primary);
  flex:none;
}
.brand-mark{width:24px;height:24px;flex:none;}
.brand-name{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-primary-dark);
  line-height:1;
}
.brand-tag{
  font-size:11.5px;
  font-weight:600;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--r-pill);
  padding:4px 9px;
  line-height:1.1;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:22px 0;
  font-size:16px;
  color:var(--c-text-2);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a.active{color:var(--c-primary);font-weight:600;}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:12px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:40px;
  padding:0 14px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  transition:border-color .18s ease, background .18s ease;
}
.search:focus-within{
  border-color:var(--c-primary);
  background:var(--c-surface);
  box-shadow:0 0 0 3px rgba(28,109,208,.12);
}
.search svg{width:17px;height:17px;color:var(--c-text-2);flex:none;}
.search input{
  width:100%;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  line-height:1.4;
  color:var(--c-text);
}
.search input::placeholder{color:#94A3BB;}
.nav-login{
  font-size:15px;
  color:var(--c-text-2);
  white-space:nowrap;
}
.nav-login:hover{color:var(--c-primary);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn-sm{height:40px;padding:0 22px;font-size:14.5px;}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 6px 16px rgba(255,106,43,.22);
}
.btn-primary:hover{
  background:#FF7C46;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(255,106,43,.28);
}
.btn-primary:active{transform:translateY(0);background:#F35E20;}
.btn-secondary{
  background:var(--c-surface);
  color:var(--c-primary);
  border:1px solid var(--c-line);
}
.btn-secondary:hover{
  border-color:var(--c-primary);
  color:var(--c-primary-dark);
  transform:translateY(-1px);
  box-shadow:var(--sh-1);
}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  padding:0;
  height:auto;
  font-size:15px;
  font-weight:600;
}
.btn-ghost .arw{transition:transform .18s ease;}
.btn-ghost:hover .arw{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{
  opacity:.45;
  pointer-events:none;
  box-shadow:none;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--c-line);
  border-radius:12px;
  position:relative;
  background:var(--c-surface);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary-dark);
  transform:translateX(-50%);
  content:"";
}
.nav-toggle span{top:20px;}
.nav-toggle span::before{top:-6px;left:0;transform:none;}
.nav-toggle span::after{top:6px;left:0;transform:none;}

/* 移动端抽屉 */
.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(15,27,45,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease;
  z-index:70;
}
.nav-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(320px,86vw);
  background:var(--c-surface);
  border-top-left-radius:20px;
  border-bottom-left-radius:20px;
  padding:26px 24px;
  transform:translateX(102%);
  transition:transform .26s ease;
  z-index:80;
  overflow-y:auto;
  box-shadow:var(--sh-2);
}
body.drawer-open .nav-mask{opacity:1;pointer-events:auto;}
body.drawer-open .nav-drawer{transform:translateX(0);}
.nav-drawer{visibility:hidden;}
body.drawer-open .nav-drawer{visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--c-line);
  color:var(--c-text-2);font-size:18px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:20px;}
.drawer-links a{
  padding:13px 12px;
  border-radius:10px;
  font-size:16px;
  color:var(--c-text-2);
}
.drawer-links a:hover{background:var(--c-bg);color:var(--c-primary);}
.drawer-links a.active{
  color:var(--c-primary);
  font-weight:600;
  background:var(--c-primary-soft);
}
.drawer-search{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;border:1px solid var(--c-line);
  border-radius:var(--r-input);background:var(--c-bg);margin-bottom:16px;
}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;}
.drawer-actions .btn{width:100%;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0;}
.crumb{font-size:13px;color:#8A99B0;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb a{color:#8A99B0;}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C3CEE0;}
.crumb .current{color:var(--c-primary);font-weight:600;}

/* ---------- 横幅 ---------- */
.page-hero{padding:18px 0 0;}
.hero-banner{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  min-height:220px;
  display:flex;
  align-items:center;
  padding:40px 44px;
  color:#fff;
  background-image:
    linear-gradient(96deg, rgba(18,58,120,.92) 0%, rgba(28,109,208,.72) 52%, rgba(28,109,208,.42) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-2);
}
.hero-banner::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-90px;
  width:340px;
  height:340px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 40px rgba(255,255,255,.05), 0 0 0 90px rgba(255,255,255,.04);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:720px;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.26);
  font-size:12.5px;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.hero-banner h1{
  font-size:36px;
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.hero-banner p{
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.86);
  max-width:620px;
}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0 0;}
.section:last-of-type{padding-bottom:8px;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
}
.sec-head h2{
  font-size:32px;
  line-height:1.25;
  font-weight:700;
  color:var(--c-primary-dark);
  letter-spacing:-.01em;
}
.sec-head .sub{
  margin-top:10px;
  font-size:15px;
  color:var(--c-text-2);
  max-width:640px;
}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--c-accent);
  margin-bottom:10px;
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12px;
  line-height:1.5;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  white-space:nowrap;
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}

/* ---------- 服务大卡（2×2） ---------- */
.svc-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.svc-card{
  display:grid;
  grid-template-columns:38% 1fr;
  min-height:210px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.svc-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(28,109,208,.22);
}
.svc-card picture,.svc-card img{width:100%;height:100%;}
.svc-card img{object-fit:cover;border-radius:0;}
.svc-body{
  padding:24px 26px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.svc-body h3{
  font-size:19px;
  line-height:1.4;
  font-weight:700;
  color:var(--c-primary-dark);
}
.svc-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-text-2);
}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.svc-link{
  margin-top:auto;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  align-self:flex-start;
}
.svc-link .arw{transition:transform .18s ease;}
.svc-link:hover .arw{transform:translateX(4px);}

/* ---------- 对比表 ---------- */
.cmp-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:8px;
  overflow-x:auto;
}
table.cmp{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:14px;
  font-variant-numeric:tabular-nums;
}
table.cmp th,
table.cmp td{
  border:1px solid var(--c-line);
  padding:14px 16px;
  text-align:left;
  vertical-align:middle;
}
table.cmp thead th{
  background:var(--c-primary-band);
  color:var(--c-primary-dark);
  font-weight:700;
  font-size:14px;
}
table.cmp tbody th{
  font-weight:600;
  color:var(--c-text);
  background:#FBFCFE;
  white-space:nowrap;
}
table.cmp tbody td{color:var(--c-text-2);}
table.cmp tbody tr:hover td{background:#FAFCFF;}
.cmp-note{
  margin-top:14px;
  font-size:13px;
  color:#8A99B0;
}

/* ---------- 使用流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.step{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.step:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(28,109,208,.22);
}
.step-num{
  font-size:22px;
  font-weight:800;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  margin-bottom:10px;
}
.step h3{font-size:17px;font-weight:700;color:var(--c-primary-dark);margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-aside h2{
  font-size:32px;
  line-height:1.25;
  font-weight:700;
  color:var(--c-primary-dark);
  margin-bottom:12px;
}
.faq-aside p{font-size:15px;color:var(--c-text-2);margin-bottom:18px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(28,109,208,.22);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.5;
}
.faq-q .ico{
  flex:none;
  width:24px;height:24px;
  border-radius:50%;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;
  transition:transform .18s ease, background .18s ease;
}
.faq-item.open .faq-q{color:var(--c-primary-dark);}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--c-accent-soft);color:var(--c-accent);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a .inner{
  padding:0 22px 20px;
  margin-top:-4px;
  border-top:1px dashed var(--c-line);
  padding-top:16px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--c-primary-band);
  border-radius:20px;
  padding:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:var(--sh-1);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  bottom:-120px;
  width:300px;height:300px;
  border-radius:50%;
  border:1px solid rgba(28,109,208,.16);
  box-shadow:0 0 0 36px rgba(28,109,208,.06), 0 0 0 80px rgba(28,109,208,.04);
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:560px;}
.cta-text h2{
  font-size:32px;
  line-height:1.28;
  font-weight:700;
  color:var(--c-primary-dark);
  margin-bottom:12px;
}
.cta-text p{font-size:14px;color:var(--c-text-2);line-height:1.8;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 相关频道 ---------- */
.related{
  margin-top:56px;
  border-top:1px solid var(--c-line);
  padding-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:14px 36px;
  align-items:center;
}
.related .label{font-size:13px;color:#8A99B0;letter-spacing:.02em;}
.related a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary-dark);
}
.related a:hover{color:var(--c-primary);}
.related a .arw{transition:transform .18s ease;color:var(--c-accent);}
.related a:hover .arw{transform:translateX(4px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  background:#0E1B33;
  color:rgba(255,255,255,.6);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand .brand{color:#5B9BF0;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-tag{background:rgba(91,155,240,.16);color:#9CC4F8;}
.footer-desc{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.8);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-list{display:flex;flex-direction:column;}
.footer-list a{
  font-size:14px;
  color:rgba(255,255,255,.6);
  line-height:2.2;
}
.footer-list a:hover{color:#fff;}
.footer-contact li{
  font-size:14px;
  color:rgba(255,255,255,.6);
  line-height:2.2;
}
.footer-contact b{font-weight:600;color:rgba(255,255,255,.8);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  font-size:12.5px;
  color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 26px;}
  .nav-bar{gap:22px;}
  .nav-links{gap:20px;}
  .search{width:200px;}
  .hero-banner h1{font-size:32px;}
  .sec-head h2,.faq-aside h2,.cta-text h2{font-size:28px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-links{display:none;}
  .search{display:none;}
  .nav-login{display:none;}
  .nav-toggle{display:block;}
  .nav-right{margin-left:auto;}
  .svc-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;}
  .hero-banner{padding:32px;min-height:200px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .nav-bar{height:62px;gap:12px;}
  .brand-name{font-size:18px;}
  .brand-tag{font-size:11px;padding:3px 7px;}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .hero-banner{min-height:170px;padding:24px 20px;border-radius:16px;}
  .hero-banner h1{font-size:24px;line-height:1.35;}
  .hero-banner p{font-size:14px;}
  .hero-badge{font-size:11.5px;padding:4px 10px;margin-bottom:12px;}
  .section{padding:44px 0 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:20px;}
  .sec-head h2,.faq-aside h2,.cta-text h2{font-size:23px;}
  .svc-card{grid-template-columns:1fr;min-height:0;}
  .svc-card img{height:180px;}
  .svc-body{padding:20px;}
  .steps{grid-template-columns:1fr;}
  .step{padding:20px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a .inner{padding:14px 18px 18px;font-size:14.5px;}
  .cta-band{padding:28px 22px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .related{margin-top:40px;gap:12px 20px;}
  .site-footer{padding-top:40px;margin-top:52px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;}
  table.cmp{font-size:13.5px;}
  table.cmp th,table.cmp td{padding:12px 14px;}
}
@media (max-width:520px){
  .hero-banner h1{font-size:22px;}
  .btn{font-size:14.5px;padding:0 18px;}
  .svc-card img{height:160px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1C6DD0;
  --c-primary-dark:#123A78;
  --c-accent:#FF6A2B;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E4EBF6;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B84;
  --c-success:#12B981;
  --c-warn:#E8A317;
  --c-danger:#D93F3F;
  --r-card:16px;
  --r-input:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,120,.05), 0 6px 18px rgba(18,58,120,.06);
  --sh-2:0 10px 28px rgba(18,58,120,.10);
  --sh-3:0 1px 0 var(--c-line);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:14px;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(28,109,208,.35);border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
}
.nav-bar{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}
.brand-mark{
  width:24px;
  height:24px;
  color:var(--c-primary);
  flex-shrink:0;
}
.brand-name{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-primary-dark);
  white-space:nowrap;
}
.brand-tag{
  font-size:11.5px;
  font-weight:600;
  color:var(--c-primary);
  background:#E8F1FE;
  border-radius:var(--r-pill);
  padding:3px 9px;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:22px;
  flex:1;
  min-width:0;
}
.nav-links a{
  position:relative;
  font-size:16px;
  color:var(--c-text-2);
  padding:22px 0;
  transition:color .18s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a.active{
  color:var(--c-primary);
  font-weight:600;
}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:13px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex-shrink:0;
}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:200px;
  height:40px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  background:#F7FAFE;
  transition:border-color .18s ease, background .18s ease;
}
.search:focus-within{
  border-color:var(--c-primary);
  background:#fff;
}
.search svg{
  width:16px;
  height:16px;
  color:var(--c-text-2);
  flex-shrink:0;
}
.search input{
  width:100%;
  border:none;
  background:transparent;
  outline:none;
  font-size:13.5px;
  color:var(--c-text);
  padding:0;
}
.search input::placeholder{color:#9AA9BF;}
.nav-login{
  font-size:14px;
  color:var(--c-text-2);
  white-space:nowrap;
  transition:color .18s ease;
}
.nav-login:hover{color:var(--c-primary);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-weight:600;
  cursor:pointer;
  transition:background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
}
.btn-primary:hover{
  background:#FF7F49;
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(255,106,43,.28);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;
  color:var(--c-primary);
  border-color:var(--c-line);
}
.btn-ghost:hover{
  border-color:var(--c-primary);
  color:var(--c-primary-dark);
}
.btn-outline{
  background:transparent;
  color:var(--c-primary-dark);
  border-color:rgba(18,58,120,.18);
}
.btn-outline:hover{
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-sm{height:40px;padding:0 22px;font-size:14px;}
.btn-md{height:46px;padding:0 26px;font-size:15px;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.disabled{opacity:.45;cursor:not-allowed;pointer-events:none;}

.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:#fff;
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary-dark);
  transform:translateX(-50%);
  transition:.2s ease;
}
.nav-toggle span{top:19px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-overlay{
  display:none;
  position:fixed;
  inset:68px 0 0 0;
  background:rgba(15,27,45,.45);
  z-index:55;
  opacity:0;
  transition:opacity .25s ease;
}
.nav-overlay.show{display:block;opacity:1;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:0;
  padding:22px 0 18px;
  font-size:13px;
  color:var(--c-text-2);
}
.breadcrumb a{
  color:var(--c-text-2);
  transition:color .18s ease;
}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{
  margin:0 8px;
  color:#A9B7CB;
}
.breadcrumb .current{color:var(--c-primary);font-weight:500;}

/* ============ 横幅 ============ */
.banner-wrap{
  padding-bottom:8px;
}
.banner{
  position:relative;
  overflow:hidden;
  min-height:220px;
  padding:40px 44px;
  border-radius:20px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  color:#fff;
  box-shadow:var(--sh-1);
  background:
    linear-gradient(100deg, rgba(18,58,120,.88) 0%, rgba(28,109,208,.56) 100%),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
}
.banner::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-80px;
  width:360px;
  height:360px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 0 0 44px rgba(255,255,255,.05), 0 0 0 88px rgba(255,255,255,.035);
  pointer-events:none;
}
.banner h1{
  position:relative;
  z-index:1;
  font-size:36px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.01em;
  margin-bottom:10px;
  max-width:760px;
}
.banner p{
  position:relative;
  z-index:1;
  font-size:15px;
  line-height:1.85;
  color:rgba(255,255,255,.88);
  max-width:660px;
}

/* ============ 板块通用 ============ */
.section{
  padding:76px 0 0;
}
.section-head{
  max-width:740px;
  margin-bottom:40px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--c-primary);
  background:#E8F1FE;
  border-radius:var(--r-pill);
  padding:5px 13px;
  margin-bottom:16px;
}
.section-head h2{
  font-size:32px;
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.01em;
  color:var(--c-primary-dark);
  margin-bottom:14px;
}
.section-head p{
  font-size:15px;
  line-height:1.9;
  color:var(--c-text-2);
}

/* ============ 图文交替 ============ */
.media-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:34px 0;
}
.media-row + .media-row{
  border-top:1px dashed var(--c-line);
}
.media-row.reverse .media-img{order:2;}
.media-img{
  position:relative;
}
.media-img img{
  width:100%;
  aspect-ratio:16 / 10;
  object-fit:cover;
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.media-img .img-badge{
  position:absolute;
  left:16px;
  top:16px;
  background:var(--c-accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:5px 12px;
  border-radius:var(--r-pill);
  letter-spacing:.02em;
}
.media-body h3{
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  color:var(--c-primary-dark);
  margin-bottom:14px;
}
.media-body p{
  font-size:15px;
  line-height:1.9;
  color:var(--c-text-2);
  margin-bottom:14px;
}
.media-body p:last-of-type{margin-bottom:0;}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:20px;
}
.tag{
  font-size:12.5px;
  font-weight:500;
  color:var(--c-primary);
  background:#E8F1FE;
  border-radius:var(--r-pill);
  padding:5px 13px;
}
.tag.accent{
  color:#C74A12;
  background:#FFF1EA;
}

/* ============ 合作申请区 ============ */
.partner-grid{
  display:grid;
  grid-template-columns:1fr 420px;
  gap:44px;
  align-items:start;
}
.partner-left h3{
  font-size:20px;
  font-weight:700;
  color:var(--c-primary-dark);
  margin-bottom:8px;
}
.partner-left .lead{
  font-size:14.5px;
  color:var(--c-text-2);
  line-height:1.9;
  margin-bottom:22px;
}
.step-list{
  border-top:1px solid var(--c-line);
}
.step-item{
  display:flex;
  gap:18px;
  padding:22px 0;
  border-bottom:1px dashed var(--c-line);
}
.step-num{
  flex-shrink:0;
  font-size:22px;
  font-weight:800;
  line-height:1.25;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.step-item h4{
  font-size:17px;
  font-weight:700;
  color:var(--c-text);
  margin-bottom:6px;
}
.step-item p{
  font-size:14px;
  line-height:1.85;
  color:var(--c-text-2);
}
.prepare-box{
  margin-top:24px;
  background:#EDF4FE;
  border-radius:var(--r-card);
  padding:22px 24px;
}
.prepare-box h4{
  font-size:15px;
  font-weight:700;
  color:var(--c-primary-dark);
  margin-bottom:10px;
}
.prepare-box li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  line-height:2;
  color:var(--c-text-2);
}
.prepare-box li::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-primary);
  opacity:.65;
}

/* ============ 表单卡 ============ */
.form-card{
  position:sticky;
  top:92px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:28px;
}
.form-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--c-primary-dark);
  margin-bottom:6px;
}
.form-sub{
  font-size:13.5px;
  color:var(--c-text-2);
  line-height:1.75;
  margin-bottom:22px;
}
.field{
  margin-bottom:16px;
}
.field label{
  display:block;
  font-size:13.5px;
  font-weight:500;
  color:var(--c-text-2);
  margin-bottom:6px;
}
.field .req{color:var(--c-accent);}
.field input,
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  background:#FBFDFF;
  color:var(--c-text);
  height:44px;
  padding:0 14px;
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.field select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%235A6B84' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:36px;
}
.field textarea{
  height:96px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input::placeholder,
.field textarea::placeholder{color:#9AA9BF;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  background:#fff;
  box-shadow:0 0 0 3px rgba(28,109,208,.15);
}
.field.error input,
.field.error select,
.field.error textarea{
  border-color:var(--c-danger);
  box-shadow:0 0 0 3px rgba(217,63,63,.12);
}
.field .err-tip{
  display:none;
  font-size:12.5px;
  color:var(--c-danger);
  margin-top:6px;
}
.field.error .err-tip{display:block;}
.form-note{
  font-size:12.5px;
  line-height:1.75;
  color:var(--c-text-2);
  margin-top:14px;
}
.form-msg{
  display:none;
  margin-top:16px;
  padding:11px 14px;
  border-radius:var(--r-input);
  font-size:13.5px;
  line-height:1.7;
  color:#0B7A57;
  background:#EAF9F3;
  border:1px solid rgba(18,185,129,.25);
}
.form-msg.show{display:block;}

/* ============ 数据带 ============ */
.metrics{
  background:#EDF4FE;
  border-radius:20px;
  padding:44px 48px;
  position:relative;
  overflow:hidden;
}
.metrics::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:6px;
  background:linear-gradient(90deg, var(--c-primary), var(--c-accent));
  opacity:.85;
}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric-num{
  font-size:36px;
  font-weight:800;
  line-height:1.1;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.metric-label{
  margin-top:8px;
  font-size:13px;
  line-height:1.7;
  color:var(--c-text-2);
}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:56px;
  align-items:start;
}
.faq-aside h2{
  font-size:32px;
  font-weight:700;
  line-height:1.32;
  color:var(--c-primary-dark);
  margin-bottom:14px;
  letter-spacing:-.01em;
}
.faq-aside p{
  font-size:14.5px;
  line-height:1.9;
  color:var(--c-text-2);
  margin-bottom:20px;
}
.faq-aside .link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  transition:gap .18s ease;
}
.faq-aside .link-arrow:hover{gap:12px;}
.faq-list{
  display:grid;
  gap:12px;
}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(28,109,208,.28);}
.faq-item.open{
  border-color:rgba(28,109,208,.38);
  box-shadow:var(--sh-1);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:18px 22px;
  border:none;
  background:none;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  position:relative;
  width:20px;
  height:20px;
  flex-shrink:0;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:2px;
  transition:transform .2s ease, opacity .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  display:none;
  padding:16px 22px 20px;
  margin:0 22px;
  border-top:1px dashed var(--c-line);
  font-size:14.5px;
  line-height:1.9;
  color:var(--c-text-2);
  padding-left:0;
  padding-right:0;
}
.faq-item.open .faq-a{display:block;}

/* ============ CTA ============ */
.cta{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:52px;
  border:1px solid var(--c-line);
  border-radius:20px;
  background:linear-gradient(120deg,#EDF4FE 0%,#F8FBFF 100%);
}
.cta::after{
  content:"";
  position:absolute;
  right:-90px;
  bottom:-120px;
  width:340px;
  height:340px;
  border-radius:50%;
  border:1px solid rgba(28,109,208,.14);
  box-shadow:0 0 0 40px rgba(28,109,208,.045), 0 0 0 80px rgba(28,109,208,.03);
  pointer-events:none;
}
.cta-text{
  position:relative;
  z-index:1;
  max-width:560px;
}
.cta-text h2{
  font-size:27px;
  font-weight:700;
  line-height:1.35;
  color:var(--c-primary-dark);
  margin-bottom:10px;
}
.cta-text p{
  font-size:14.5px;
  line-height:1.85;
  color:var(--c-text-2);
}
.cta-actions{
  position:relative;
  z-index:1;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

/* ============ 相关频道 ============ */
.rel-section{
  padding-top:56px;
}
.rel-links{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  border-top:1px solid var(--c-line);
  padding-top:24px;
}
.rel-links a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  transition:color .18s ease, gap .18s ease;
}
.rel-links a span{color:var(--c-primary);}
.rel-links a:hover{color:var(--c-primary);gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:#0E1B33;
  color:#fff;
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
}
.footer-brand .brand-name{
  color:#fff;
  font-size:20px;
  font-weight:800;
}
.footer-brand .brand-tag{
  background:rgba(91,155,240,.18);
  color:#8FBDFA;
}
.footer-desc{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.85);
  margin-bottom:14px;
}
.footer-list{
  display:flex;
  flex-direction:column;
}
.footer-list a{
  font-size:14px;
  line-height:2.2;
  color:rgba(255,255,255,.6);
  transition:color .18s ease;
}
.footer-list a:hover{color:#fff;}
.footer-contact{
  font-size:14px;
  line-height:2.2;
  color:rgba(255,255,255,.6);
}
.footer-contact b{
  font-weight:500;
  color:rgba(255,255,255,.85);
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .partner-grid{grid-template-columns:1fr 380px;gap:32px;}
  .faq-layout{grid-template-columns:280px 1fr;gap:40px;}
}

@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-links{
    position:fixed;
    top:68px;
    right:0;
    width:290px;
    max-width:86vw;
    height:calc(100% - 68px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:#fff;
    padding:20px 24px 32px;
    border-radius:20px 0 0 0;
    box-shadow:var(--sh-2);
    transform:translateX(105%);
    transition:transform .26s ease;
    z-index:60;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{
    font-size:16px;
    padding:14px 0;
    border-bottom:1px dashed var(--c-line);
    color:var(--c-text);
  }
  .nav-links a.active::after{display:none;}
  .nav-links a.active{color:var(--c-primary);}
  .search,.nav-login{display:none;}
  .nav-toggle{display:block;}
  .media-row{grid-template-columns:1fr;gap:24px;padding:28px 0;}
  .media-row.reverse .media-img{order:0;}
  .partner-grid{grid-template-columns:1fr;}
  .form-card{position:static;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .metrics{padding:36px 32px;}
  .cta{padding:40px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0 0;}
}

@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-bar{height:62px;gap:12px;}
  .site-header .brand-name{font-size:18px;}
  .site-header .brand-tag{font-size:11px;padding:3px 8px;}
  .nav-links{top:62px;height:calc(100% - 62px);}
  .nav-overlay{inset:62px 0 0 0;}
  .banner{min-height:160px;padding:26px 22px;border-radius:16px;}
  .banner h1{font-size:24px;}
  .banner p{font-size:13.5px;line-height:1.8;}
  .section{padding:52px 0 0;}
  .section-head h2,
  .faq-aside h2{font-size:24px;}
  .media-body h3{font-size:19px;}
  .media-body p{font-size:14.5px;}
  .metrics{padding:28px 22px;border-radius:16px;}
  .metric-num{font-size:28px;}
  .metric-label{font-size:12.5px;}
  .form-card{padding:22px;border-radius:16px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a{padding:14px 18px 18px;margin:0 18px;padding-left:0;padding-right:0;font-size:14px;}
  .cta{padding:28px 22px;border-radius:16px;}
  .cta-text h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .rel-links{gap:18px;flex-direction:column;}
  .site-footer{padding:48px 0 24px;margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .step-num{font-size:19px;}
}

@media (max-width:520px){
  .banner h1{font-size:21px;}
  .metrics-grid{grid-template-columns:1fr;}
  .btn-lg{height:46px;padding:0 22px;font-size:15px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1C6DD0;
  --c-primary-dark:#123A78;
  --c-accent:#FF6A2B;
  --c-accent-hover:#FF7C45;
  --c-accent-active:#F05C1E;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E4EBF6;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B84;
  --c-success:#12B981;
  --c-warn:#E8A317;
  --c-err:#D93F3F;
  --c-primary-soft:#E8F1FE;
  --c-accent-soft:#FFF1EA;
  --r-card:16px;
  --r-input:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,120,.05),0 6px 18px rgba(18,58,120,.06);
  --sh-2:0 10px 28px rgba(18,58,120,.10);
  --sh-3:0 1px 0 var(--c-line);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(28,109,208,.35);outline-offset:2px;border-radius:6px}
[id]{scroll-margin-top:88px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.26)}
.btn-primary:hover{background:var(--c-accent-hover);transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,43,.32)}
.btn-primary:active{transform:translateY(0);background:var(--c-accent-active)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 22px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);transition:gap .18s ease,color .18s ease}
.link-arrow:hover{gap:10px;color:var(--c-primary-dark)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.tag{display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-pill);background:#F1F6FE;color:var(--c-text-2);font-size:13px;border:1px solid var(--c-line)}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:var(--sh-3)}
.nav-bar{display:flex;align-items:center;gap:24px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:9px;flex:none}
.brand-mark{width:24px;height:24px;color:var(--c-primary);flex:none}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--c-primary-dark)}
.brand-tag{font-size:11.5px;font-weight:600;padding:3px 9px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:var(--nav-h);padding:0 13px;font-size:16px;font-weight:500;color:var(--c-text-2);transition:color .18s ease}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:50%;bottom:16px;transform:translateX(-50%);width:20px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.search{position:relative;display:flex;align-items:center;width:240px;height:40px}
.search svg{position:absolute;left:14px;width:16px;height:16px;color:#93A2BA;pointer-events:none}
.search input{width:100%;height:100%;padding:0 14px 0 38px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#F7FAFF;font-size:13.5px;color:var(--c-text);transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.search input::placeholder{color:#93A2BA}
.search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(28,109,208,.12)}
.nav-login{font-size:14px;color:var(--c-text-2);padding:8px 2px;transition:color .18s ease}
.nav-login:hover{color:var(--c-primary)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-input);border:1px solid var(--c-line);position:relative;background:#fff;flex:none}
.nav-toggle span{position:absolute;left:11px;right:11px;top:50%;height:2px;border-radius:2px;background:var(--c-primary-dark);transform:translateY(-50%)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;background:var(--c-primary-dark)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-only{display:none}
.nav-mask{position:fixed;inset:0;background:rgba(15,27,45,.45);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:70}
.nav-mask.open{opacity:1;pointer-events:auto}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:22px 0 18px;font-size:13px;color:var(--c-text-2)}
.breadcrumb a{transition:color .16s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B9C6DA}
.breadcrumb .current{color:var(--c-primary);font-weight:600}

/* ---------- 内页横幅 ---------- */
.hero-banner{
  position:relative;overflow:hidden;border-radius:20px;
  min-height:220px;display:flex;align-items:center;
  padding:44px 48px;color:#fff;
  background:var(--c-primary-dark) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  box-shadow:var(--sh-1);
}
.hero-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(28,109,208,.88) 0%,rgba(28,109,208,.55) 100%)}
.hero-banner::after{
  content:"";position:absolute;right:-90px;top:-120px;width:380px;height:380px;border-radius:50%;
  border:2px solid rgba(255,255,255,.10);box-shadow:0 0 0 40px rgba(255,255,255,.05),0 0 0 80px rgba(255,255,255,.04);
}
.hero-inner{position:relative;z-index:1;max-width:720px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.16);font-size:12.5px;font-weight:600;letter-spacing:.04em;margin-bottom:16px}
.hero-banner h1{font-size:36px;line-height:1.28;font-weight:800;letter-spacing:-.01em}
.hero-banner p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.88);max-width:620px}

/* ---------- 通用板块 ---------- */
.section{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:28px;line-height:1.3;font-weight:700;color:var(--c-primary-dark);letter-spacing:-.01em}
.section-head p{margin-top:8px;font-size:15px;color:var(--c-text-2);max-width:640px}
.section-head.center{justify-content:center;text-align:center}
.section-head.center p{margin-left:auto;margin-right:auto}

/* ---------- 快速入口卡 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.quick-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(28,109,208,.28)}
.quick-icon{width:44px;height:44px;border-radius:var(--r-img);display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:4px}
.quick-icon svg{width:22px;height:22px}
.quick-card h3{font-size:17px;font-weight:700;color:var(--c-text);line-height:1.4}
.quick-card p{font-size:14px;line-height:1.75;color:var(--c-text-2)}
.quick-card .link-arrow{margin-top:auto;padding-top:6px;font-size:13.5px}

/* ---------- 帮助中心主体两栏 ---------- */
.help-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:32px;align-items:start}
.help-nav{
  position:sticky;top:88px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:18px 14px;box-shadow:var(--sh-1);
}
.help-nav-title{font-size:13px;font-weight:700;color:var(--c-text-2);letter-spacing:.06em;padding:0 10px;margin-bottom:10px}
.help-nav a{position:relative;display:block;padding:11px 12px;border-radius:var(--r-input);font-size:14.5px;color:var(--c-text-2);transition:background .16s ease,color .16s ease}
.help-nav a:hover{background:#F1F6FE;color:var(--c-primary)}
.help-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:600}
.help-nav a.is-active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:18px;border-radius:3px;background:var(--c-primary)}

/* ---------- FAQ 手风琴 ---------- */
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(28,109,208,.22)}
.faq-item[open]{border-color:rgba(28,109,208,.32);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-text);line-height:1.55;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:17px;font-weight:700;line-height:1;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item[open] .faq-icon{background:var(--c-primary);color:#fff;transform:rotate(45deg)}
.faq-body{padding:18px 24px 22px;border-top:1px dashed var(--c-line);font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-body p+p{margin-top:10px}
.faq-body strong{color:var(--c-text);font-weight:600}

.faq-help{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:var(--c-primary-soft);border-radius:var(--r-card);padding:24px 26px;margin-top:20px;
}
.faq-help h3{font-size:17px;font-weight:700;color:var(--c-primary-dark)}
.faq-help p{font-size:14px;color:var(--c-text-2);margin-top:4px}

/* ---------- 三步自查 ---------- */
.steps-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.step-list li{display:flex;gap:18px;padding:20px 0;border-bottom:1px dashed var(--c-line)}
.step-list li:first-child{padding-top:0}
.step-list li:last-child{border-bottom:0;padding-bottom:0}
.step-no{flex:none;font-size:22px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.3;min-width:38px}
.step-list h3{font-size:17px;font-weight:700;color:var(--c-text);line-height:1.45}
.step-list p{font-size:14.5px;line-height:1.8;color:var(--c-text-2);margin-top:6px}
.steps-figure{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-2)}
.steps-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:20px}
.steps-caption{
  position:absolute;left:16px;right:16px;bottom:16px;
  background:rgba(255,255,255,.94);border-radius:14px;padding:14px 16px;
  font-size:13px;color:var(--c-text-2);line-height:1.7;
  box-shadow:var(--sh-1);
}
.steps-caption strong{display:block;font-size:14px;color:var(--c-primary-dark);margin-bottom:2px;font-weight:700}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-soft);border-radius:20px;
  padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  border:2px solid rgba(28,109,208,.12);box-shadow:0 0 0 34px rgba(28,109,208,.05),0 0 0 68px rgba(28,109,208,.035);
}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--c-primary-dark);letter-spacing:-.01em}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 相关频道 ---------- */
.related{margin-top:56px;border-top:1px solid var(--c-line);padding-top:26px}
.related-title{font-size:14px;font-weight:700;color:var(--c-text-2);letter-spacing:.04em;margin-bottom:14px}
.related-bar{display:flex;flex-wrap:wrap;gap:12px}
.related-bar a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:14.5px;font-weight:600;color:var(--c-primary-dark);
  transition:border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.related-bar a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-1)}
.related-bar a svg{width:14px;height:14px;transition:transform .18s ease}
.related-bar a:hover svg{transform:translateX(3px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1B33;color:rgba(255,255,255,.6);padding:64px 0 28px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-tag{background:rgba(255,255,255,.12);color:#9CC3F5}
.footer-desc{font-size:14px;line-height:1.9;margin-top:14px;max-width:340px;color:rgba(255,255,255,.6)}
.footer-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.85);margin-bottom:8px}
.footer-list a{display:block;font-size:14px;line-height:2.2;color:rgba(255,255,255,.6);transition:color .16s ease}
.footer-list a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:2.2;color:rgba(255,255,255,.6)}
.footer-contact b{color:rgba(255,255,255,.82);font-weight:500}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .search{width:200px}
  .nav-links a{padding:0 10px;font-size:15px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .search,.nav-login{display:none}
  .nav-toggle{display:block}
  .nav-links{
    position:fixed;top:0;right:0;z-index:80;
    width:min(330px,86vw);height:100vh;margin-left:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:88px 20px 28px;
    border-radius:20px 0 0 20px;
    box-shadow:-20px 0 60px rgba(15,27,45,.18);
    transform:translateX(105%);transition:transform .28s ease;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{height:52px;padding:0 12px;font-size:16px;border-bottom:1px solid var(--c-line);border-radius:0}
  .nav-links a.active{background:transparent}
  .nav-links a.active::after{display:none}
  .nav-links a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:18px;border-radius:3px;background:var(--c-primary)}
  .drawer-only{display:flex}
  .drawer-search{width:100%;height:44px;margin-top:18px}
  .hero-banner{min-height:200px;padding:36px 32px}
  .hero-banner h1{font-size:30px}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .help-layout{grid-template-columns:1fr;gap:24px}
  .help-nav{position:static}
  .steps-layout{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section-head h2{font-size:24px}
  .cta-copy h2{font-size:24px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .brand-name{font-size:18px}
  .brand-tag{font-size:11px;padding:3px 7px}
  .nav-bar{gap:12px}
  .hero-banner{min-height:180px;padding:28px 22px;border-radius:16px}
  .hero-banner h1{font-size:24px}
  .hero-banner p{font-size:14px}
  .section{margin-top:44px}
  .section-head h2{font-size:21px}
  .section-head p{font-size:14px}
  .quick-grid{grid-template-columns:1fr;gap:14px}
  .quick-card{padding:22px 20px}
  .faq-item summary{padding:16px 18px;font-size:15.5px;gap:12px}
  .faq-body{padding:16px 18px 20px;font-size:14.5px}
  .faq-help{padding:20px;flex-direction:column;align-items:flex-start}
  .cta-band{padding:32px 22px;border-radius:16px}
  .cta-copy h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 24px;margin-top:60px}
  .footer-bottom{flex-direction:column;gap:8px}
  .related-bar a{flex:1 1 100%;justify-content:space-between}
}
@media (max-width:520px){
  .nav-bar{height:62px}
  :root{--nav-h:62px}
  .hero-banner h1{font-size:21px;line-height:1.35}
  .footer-desc{max-width:none}
  .steps-caption{position:static;margin-top:10px;border-radius:12px}
}