/* roulang page: index */
:root{
  --brand-600:#2757D9;
  --brand-700:#1B3E9E;
  --brand-100:#E8EFFF;
  --brand-50:#F3F7FF;
  --accent-500:#FF7A3D;
  --accent-100:#FFEDE3;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A72;
  --ink-400:#8494AB;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --ok:#12A17A;
  --warn:#E8A400;
  --shadow-sm:0 1px 2px rgba(16,35,70,.06);
  --shadow-md:0 6px 18px rgba(16,35,70,.08);
  --shadow-lg:0 16px 40px rgba(16,35,70,.10);
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-img:12px;
  --maxw:1200px;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--page);
  color:var(--ink-600);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-weight:400;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;font-family:inherit;}
ul,ol{list-style:none;padding:0;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--brand-700);}
img{display:block;max-width:100%;border-radius:var(--r-img);background:#EEF2F8;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,textarea{font-family:inherit;font-size:14px;}
:focus-visible{outline:3px solid var(--brand-100);outline-offset:2px;border-radius:6px;}

/* 栅格微调，覆盖 Foundation 默认间距 */
.row{display:flex;flex-wrap:wrap;max-width:none;margin-left:-12px;margin-right:-12px;}
.row::before,.row::after{content:none;display:none;}
.column,.columns{float:none;flex:0 0 auto;padding-left:12px;padding-right:12px;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--plain{background:transparent;}
.section--tint{background:var(--brand-50);}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head__text{max-width:680px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--ink-900);letter-spacing:-.2px;}
.section-head p{font-size:14px;color:var(--ink-400);margin-top:8px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  transition:background-color var(--ease),transform var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn--primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn--ghost{background:#fff;border-color:var(--brand-600);color:var(--brand-600);}
.btn--ghost:hover{background:var(--brand-50);border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--sm{height:44px;padding:0 20px;font-size:14px;}
.btn--block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);}
.text-link span{transition:transform var(--ease);}
.text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover span{transform:translateX(3px);}
.text-link--muted{color:var(--ink-400);font-weight:500;}
.text-link--muted:hover{color:var(--brand-600);text-decoration:none;}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;height:24px;padding:4px 10px;border-radius:999px;font-size:12px;line-height:1;font-weight:600;background:var(--brand-100);color:var(--brand-600);}
.badge--live{background:var(--accent-100);color:#D9561A;}
.badge--ok{background:#E6F6F1;color:var(--ok);}

/* 顶部公告条 */
.notice-bar{background:var(--brand-50);border-bottom:1px solid var(--line);}
.notice-bar__inner{display:flex;align-items:center;gap:16px;height:40px;}
.notice-tag{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;background:var(--accent-100);color:#D9561A;font-size:12px;font-weight:600;flex:0 0 auto;}
.notice-text{font-size:13px;color:var(--ink-600);flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.notice-link{font-size:13px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:4px;flex:0 0 auto;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease);}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;}
.logo__mark{width:38px;height:38px;border-radius:10px;background:var(--brand-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__name{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.4px;}
.logo__sub{font-size:12px;color:var(--ink-400);letter-spacing:.6px;}
.nav__menu{display:flex;align-items:center;gap:32px;}
.nav__link{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--ink-600);}
.nav__link:hover{color:var(--brand-600);}
.nav__link.is-active{color:var(--brand-600);font-weight:600;}
.nav__link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--brand-600);}
.nav__actions{display:flex;align-items:center;gap:18px;}

/* 移动底部 Tab */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;background:#fff;border-top:1px solid var(--line);box-shadow:var(--shadow-lg);padding-bottom:env(safe-area-inset-bottom);}
.tabbar__inner{display:grid;grid-template-columns:repeat(4,1fr);height:62px;}
.tabbar__item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:11px;color:var(--ink-400);min-height:44px;}
.tabbar__item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.tabbar__item.is-active{color:var(--brand-600);}
.tabbar__item.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:2px;border-radius:0 0 2px 2px;background:var(--brand-600);}

/* Hero */
.hero{padding-top:52px;padding-bottom:8px;}
.hero__head{max-width:760px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;background:var(--accent-100);color:#D9561A;font-size:13px;font-weight:600;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
.hero__title{margin-top:20px;font-size:44px;line-height:1.22;letter-spacing:-.5px;font-weight:700;color:var(--ink-900);}
.hero__sub{margin-top:16px;font-size:20px;line-height:1.6;color:var(--ink-600);max-width:640px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}

/* 直播大卡 */
.live-card{margin-top:48px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:24px;}
.live-cover{position:relative;}
.live-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);}
.live-cover .badge{position:absolute;top:12px;left:12px;height:24px;background:var(--accent-500);color:#fff;}
.live-cover .badge--ok{background:var(--ok);}
.live-side{display:flex;flex-direction:column;gap:20px;height:100%;}
.live-side__label{font-size:13px;font-weight:600;color:var(--ink-400);letter-spacing:.5px;}
.countdown{display:flex;align-items:center;gap:8px;}
.cd-block{background:var(--brand-50);border-radius:10px;padding:8px 12px;min-width:56px;text-align:center;}
.cd-num{display:block;font-size:44px;line-height:1.1;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;}
.cd-unit{display:block;font-size:12px;color:var(--ink-400);}
.cd-colon{font-size:24px;color:var(--ink-400);line-height:1;padding-bottom:12px;}
.live-points{display:flex;flex-direction:column;gap:10px;}
.live-points li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--ink-600);}
.live-points li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:50%;background:var(--brand-600);}
.live-form{display:flex;gap:10px;}
.live-form input{flex:1 1 auto;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--ink-900);background:#fff;transition:border-color var(--ease),box-shadow var(--ease);}
.live-form input::placeholder{color:var(--ink-400);}
.live-form input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--brand-100);}
.live-form .btn{flex:0 0 auto;}
.form-hint{font-size:12px;color:var(--ink-400);margin-top:8px;}
.form-hint.is-ok{color:var(--ok);font-size:13px;font-weight:600;}
.live-card__foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);}
.live-card__foot .text-link{font-size:13px;font-weight:500;color:var(--ink-400);}
.live-card__foot .text-link:hover{color:var(--brand-600);text-decoration:none;}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:0 24px;border-left:1px solid var(--line);}
.stat:first-child{border-left:none;padding-left:0;}
.stat__num{display:block;font-size:28px;line-height:1.3;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.stat__label{display:block;font-size:13px;color:var(--ink-400);margin-top:2px;}

/* 卡片通用 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);padding:24px;transition:box-shadow var(--ease),transform var(--ease);}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}

/* 产品与方案 */
.feature-card{display:flex;flex-direction:column;height:100%;padding:0;overflow:hidden;}
.feature-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img) var(--r-img) 0 0;}
.feature-card__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.feature-card h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink-900);}
.feature-card ul{display:flex;flex-direction:column;gap:8px;}
.feature-card li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--ink-600);}
.feature-card li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--brand-600);}
.feature-card .text-link{margin-top:auto;padding-top:4px;}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;height:100%;}
.mini-card{display:flex;flex-direction:column;gap:10px;padding:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);transition:box-shadow var(--ease),transform var(--ease);}
.mini-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.mini-card:hover h3{color:var(--brand-600);}
.mini-card__icon{width:40px;height:40px;border-radius:10px;background:var(--brand-50);display:flex;align-items:center;justify-content:center;color:var(--brand-600);}
.mini-card__icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.mini-card h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink-900);transition:color var(--ease);}
.mini-card p{font-size:14px;line-height:1.7;color:var(--ink-600);}
.mini-card .arrow{margin-top:auto;color:var(--brand-600);font-size:14px;font-weight:600;}

/* 资讯列表 */
.news-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow var(--ease),transform var(--ease);}
.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.news-card__link{display:flex;flex-direction:column;height:100%;color:inherit;}
.news-card__link:hover{color:inherit;}
.news-card__media{position:relative;}
.news-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.news-card__media .badge{position:absolute;left:12px;top:12px;background:#fff;color:var(--brand-600);box-shadow:var(--shadow-sm);}
.news-card__body{display:flex;flex-direction:column;gap:10px;padding:20px 24px 24px;flex:1 1 auto;}
.news-card h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--ease);}
.news-card:hover h3{color:var(--brand-600);}
.news-card__desc{font-size:14px;line-height:1.75;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);}
.news-card__more{font-size:13px;font-weight:600;color:var(--brand-600);}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:220px;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);text-align:center;padding:32px;}
.empty-state svg{width:40px;height:40px;stroke:var(--ink-400);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.empty-state p{font-size:15px;color:var(--ink-400);}

/* 服务流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow__item{position:relative;padding-right:12px;}
.flow__num{width:32px;height:32px;border-radius:50%;background:var(--brand-100);color:var(--brand-600);font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.flow__name{margin-top:14px;font-size:16px;font-weight:600;color:var(--ink-900);}
.flow__desc{margin-top:6px;font-size:13px;line-height:1.7;color:var(--ink-400);}
.flow__item::after{content:"";position:absolute;top:16px;left:44px;right:8px;border-top:1px dashed var(--line);}
.flow__item:last-child::after{display:none;}

/* FAQ */
.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq details{border-top:1px solid var(--line);}
.faq details:first-child{border-top:none;}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink-900);cursor:pointer;list-style:none;transition:background-color var(--ease),color var(--ease);}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:var(--brand-50);color:var(--brand-600);}
.faq summary:focus-visible{outline:3px solid var(--brand-100);outline-offset:-3px;}
.faq summary::after{content:"";flex:0 0 auto;width:20px;height:20px;background:
  linear-gradient(var(--brand-600),var(--brand-600)) center/12px 2px no-repeat,
  linear-gradient(var(--brand-600),var(--brand-600)) center/2px 12px no-repeat;
  transition:transform var(--ease);}
.faq details[open] summary::after{transform:rotate(45deg);}
.faq__answer{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--ink-600);}

/* CTA 条 */
.cta-band{background:var(--brand-50);border-radius:var(--r-lg);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{font-size:26px;line-height:1.35;font-weight:700;color:var(--ink-900);}
.cta-band p{font-size:14px;color:var(--ink-600);margin-top:8px;}
.cta-band__actions{display:flex;gap:16px;flex-wrap:wrap;flex:0 0 auto;}

/* 页脚 */
.site-footer{background:#0E1A2B;color:#B8C4D6;padding:72px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;}
.footer-brand .logo__name{color:#fff;}
.footer-brand .logo__sub{color:#8CA0BC;}
.footer-brand .logo__mark{background:#1F4BC0;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#B8C4D6;max-width:280px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;font-size:13px;color:#B8C4D6;}
.footer-contact a{color:#B8C4D6;}
.footer-contact a:hover{color:#fff;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.5px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13px;color:#B8C4D6;}
.footer-col a:hover{color:#fff;}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.10);padding:24px 0 32px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#8CA0BC;}

@media (max-width:1023px){
  body{padding-bottom:78px;}
  .nav__menu{display:none;}
  .tabbar{display:block;}
  .section{padding:64px 0;}
  .hero{padding-top:36px;}
  .hero__title{font-size:36px;}
  .stats{grid-template-columns:1fr 1fr;row-gap:28px;}
  .stat:nth-child(odd){border-left:none;padding-left:0;}
  .stat{padding:0 20px;}
  .flow{grid-template-columns:1fr 1fr;row-gap:32px;}
  .flow__item::after{left:44px;right:12px;}
  .flow__item:nth-child(2n)::after{display:none;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .mini-grid{gap:16px;margin-top:0;}
  .live-side{margin-top:8px;}
}
@media (max-width:767px){
  .mini-grid{grid-template-columns:1fr;}
  .feature-card__body{padding:20px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .row{margin-left:-8px;margin-right:-8px;}
  .column,.columns{padding-left:8px;padding-right:8px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:24px;}
  .section-head h2{font-size:22px;}
  .hero__title{font-size:30px;line-height:1.3;}
  .hero__sub{font-size:17px;}
  .hero__actions .btn{width:100%;}
  .notice-link{display:none;}
  .live-card{padding:20px;margin-top:32px;}
  .cd-num{font-size:32px;}
  .cd-block{min-width:48px;padding:8px 10px;}
  .live-form{flex-direction:column;}
  .live-form .btn{width:100%;}
  .live-card__foot{flex-direction:column;align-items:flex-start;gap:8px;}
  .stats{grid-template-columns:1fr 1fr;}
  .flow{grid-template-columns:1fr;row-gap:0;}
  .flow__item{padding:0 0 24px 0;border-left:1px dashed var(--line);padding-left:44px;min-height:auto;}
  .flow__num{position:absolute;left:0;top:0;}
  .flow__item::after{display:none;}
  .flow__item:last-child{border-left-color:transparent;padding-bottom:0;}
  .cta-band{padding:24px;}
  .cta-band h2{font-size:22px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 100%;}
  .faq summary{padding:16px 18px;font-size:15px;}
  .faq__answer{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:40px 0 0;margin-top:48px;}
  .footer-bottom{margin-top:32px;}
  .nav__text-link{display:none;}
  .news-card__body{padding:18px 20px 20px;}
}
@media (min-width:1024px){
  .tabbar{display:none;}
}

/* roulang page: article */
:root{
  --brand-600:#2757D9;
  --brand-700:#1B3E9E;
  --brand-100:#E8EFFF;
  --brand-50:#F3F7FF;
  --accent-500:#FF7A3D;
  --accent-100:#FFEDE3;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A72;
  --ink-400:#8494AB;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --success:#12A17A;
  --warn:#E8A400;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,35,70,.06);
  --shadow-md:0 6px 18px rgba(16,35,70,.08);
  --shadow-lg:0 16px 40px rgba(16,35,70,.10);
  --container:1200px;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--page);
  color:var(--ink-600);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;color:var(--ink-900);}
p{margin:0 0 1em;}
img{max-width:100%;display:block;background:#EEF2F8;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--brand-700);}
button,input,textarea,select{font-family:inherit;font-size:100%;}
ul,ol{margin:0;padding:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{margin-top:64px;}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section__title{font-size:30px;line-height:1.35;font-weight:700;margin:0;letter-spacing:-.3px;}
.section__sub{font-size:14px;color:var(--ink-400);margin:8px 0 0;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease);}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);}
.logo:hover{color:var(--ink-900);}
.logo__mark{width:38px;height:38px;border-radius:10px;background:var(--brand-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__name{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.3px;}
.logo__sub{font-size:12px;color:var(--ink-400);letter-spacing:1px;}
.nav__menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav__link{position:relative;display:inline-block;padding:10px 14px;font-size:15px;color:var(--ink-600);border-radius:8px;transition:color var(--ease),background-color var(--ease);}
.nav__link:hover{color:var(--brand-600);background:var(--brand-50);}
.nav__link.is-active{color:var(--brand-600);font-weight:600;}
.nav__link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;background:var(--brand-600);}
.nav__actions{display:flex;align-items:center;gap:16px;}

/* ---------- 按钮 / 文字链接 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:background-color var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);white-space:nowrap;line-height:1;}
.btn--primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn--primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn--primary:active{transform:none;box-shadow:var(--shadow-sm);}
.btn--ghost{background:#fff;border-color:var(--brand-600);color:var(--brand-600);}
.btn--ghost:hover{background:var(--brand-50);border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-1px);}
.btn--ghost:active{transform:none;}
.btn--sm{height:44px;padding:0 20px;font-size:14px;}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100);}
.text-link{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:600;color:var(--brand-600);}
.text-link span{transition:transform var(--ease);}
.text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover span{transform:translateX(3px);}
.text-link:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100);border-radius:6px;}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;}
.badge--brand{background:var(--brand-100);color:var(--brand-600);}
.badge--accent{background:var(--accent-100);color:var(--accent-500);}
.badge--soft{background:#EAF7F3;color:var(--success);}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:0 0 24px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:13px;color:var(--ink-400);}
.breadcrumb li{display:flex;align-items:center;gap:8px;min-width:0;}
.breadcrumb li:not(:first-child)::before{content:"/";color:#C7D2E3;}
.breadcrumb a{color:var(--ink-400);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb li[aria-current]{color:var(--ink-600);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-wrap{padding:32px 0 0;}
.article-head{max-width:880px;padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:36px;}
.article-head h1{font-size:34px;line-height:1.35;font-weight:700;letter-spacing:-.4px;margin:16px 0 18px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-400);}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C7D2E3;display:inline-block;}

/* ---------- 正文布局 ---------- */
.article-layout{display:flex;flex-wrap:wrap;margin-left:0;margin-right:0;max-width:none;}
.article-layout > .columns{padding-left:0;padding-right:0;}
.article-layout > .columns:first-child{padding-right:24px;}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-600);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{position:relative;font-size:22px;line-height:1.5;font-weight:600;color:var(--ink-900);margin:44px 0 16px;padding-left:16px;scroll-margin-top:100px;}
.article-body h2::before{content:"";position:absolute;left:0;top:.42em;width:4px;height:18px;border-radius:2px;background:var(--brand-600);}
.article-body h3{font-size:18px;line-height:1.6;font-weight:600;color:var(--ink-900);margin:28px 0 12px;scroll-margin-top:100px;}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink-900);margin:22px 0 10px;}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-700);}
.article-body strong{color:var(--ink-900);font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:10px;}
.article-body ul li::marker{color:var(--brand-600);}
.article-body ol li::marker{color:var(--brand-600);font-weight:600;}
.article-body blockquote{margin:26px 0;padding:16px 20px;background:var(--brand-50);border-left:3px solid var(--brand-100);border-radius:0 10px 10px 0;color:var(--ink-600);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:24px auto;background:#EEF2F8;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.7;margin:24px 0;border:1px solid var(--line);border-radius:10px;overflow:hidden;}
.article-body th{background:var(--brand-50);color:var(--ink-900);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body code{background:var(--brand-50);color:var(--brand-700);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body pre{background:#0E1A2B;color:#D7E1F0;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 空态 ---------- */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:260px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:40px 24px;text-align:center;}
.empty-state__icon{width:40px;height:40px;color:var(--ink-400);}
.empty-state p{margin:0;font-size:15px;color:var(--ink-400);}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;align-self:flex-start;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);margin-bottom:20px;}
.side-card__title{font-size:15px;font-weight:600;color:var(--ink-900);margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.side-card__title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand-600);}
.toc{list-style:none;margin:0;padding:0;font-size:14px;}
.toc li{margin-bottom:2px;}
.toc a{display:block;padding:8px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;color:var(--ink-600);line-height:1.55;}
.toc a:hover{background:var(--brand-50);color:var(--brand-600);}
.toc a.is-current{background:var(--brand-50);color:var(--brand-600);border-left-color:var(--brand-600);font-weight:600;}
.side-service{background:var(--brand-50);border:1px solid #DCE7FF;border-radius:var(--radius-card);padding:24px;}
.side-service h3{font-size:16px;font-weight:600;margin:0 0 10px;}
.side-service p{font-size:14px;line-height:1.75;margin:0 0 18px;color:var(--ink-600);}
.side-service .btn{width:100%;}
.side-list{list-style:none;margin:0;padding:0;font-size:14px;}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:none;}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;color:var(--ink-600);}
.side-list a:hover{color:var(--brand-600);}
.side-list a span{color:var(--ink-400);transition:transform var(--ease);}
.side-list a:hover span{color:var(--brand-600);transform:translateX(3px);}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#D6E2F6;}
.card:hover .card__title{color:var(--brand-600);}
.card__media{border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/10;background:#EEF2F8;margin-bottom:16px;}
.card__media img{width:100%;height:100%;object-fit:cover;}
.card__title{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink-900);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--ease);}
.card__desc{font-size:14px;line-height:1.75;color:var(--ink-600);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-400);}
.card__arrow{color:var(--brand-600);font-weight:600;transition:transform var(--ease);}
.card:hover .card__arrow{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-card{display:flex;align-items:center;justify-content:space-between;gap:32px;background:var(--brand-50);border-radius:var(--radius-lg);padding:32px;margin-top:64px;}
.cta-card h2{font-size:24px;line-height:1.4;font-weight:700;margin:0 0 8px;}
.cta-card p{font-size:14px;color:var(--ink-600);margin:0;}
.cta-card__actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
.back-row{display:flex;align-items:center;justify-content:flex-start;margin-top:32px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1A2B;color:#B8C4D6;margin-top:88px;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo__name{color:#fff;}
.footer-brand .logo__sub{color:#8FA2BC;}
.footer-desc{font-size:14px;line-height:1.8;color:#B8C4D6;margin:16px 0 0;max-width:300px;}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;color:#8FA2BC;margin-top:18px;}
.footer-contact a{color:#B8C4D6;}
.footer-contact a:hover{color:#fff;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#B8C4D6;}
.footer-col a:hover{color:#fff;}
.footer-bottom{margin-top:48px;padding:20px 0 24px;border-top:1px solid rgba(255,255,255,.10);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;font-size:13px;color:#8FA2BC;}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(16,35,70,.10);padding-bottom:env(safe-area-inset-bottom);}
.mobile-tab__list{display:flex;list-style:none;margin:0;padding:0;}
.mobile-tab__item{flex:1;min-width:0;}
.mobile-tab__link{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;height:62px;font-size:11px;line-height:1;color:var(--ink-400);}
.mobile-tab__link svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tab__link.is-active{color:var(--brand-600);}
.mobile-tab__link.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:22px;height:2px;border-radius:2px;background:var(--brand-600);}
.mobile-tab__link:hover{color:var(--brand-600);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav__menu{display:none;}
  .nav__text-link{display:none;}
  .mobile-tab{display:block;}
  body{padding-bottom:78px;}
  .container{padding:0 20px;}
  .section{margin-top:56px;}
  .section__title{font-size:24px;}
  .article-head h1{font-size:28px;}
  .article-layout > .columns:first-child{padding-right:0;}
  .article-side{position:static;top:auto;margin-top:24px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{flex-direction:column;align-items:flex-start;gap:20px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:56px;}
  .article-body{max-width:100%;}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  .nav{height:64px;}
  .logo__mark{width:34px;height:34px;font-size:13px;}
  .logo__name{font-size:16px;}
  .article-wrap{padding-top:20px;}
  .article-head h1{font-size:26px;line-height:1.4;margin:12px 0 14px;}
  .article-head{margin-bottom:24px;padding-bottom:20px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:19px;}
  .article-body h3{font-size:17px;}
  .section__title{font-size:22px;}
  .section__head{flex-direction:column;align-items:flex-start;gap:8px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-card{padding:24px;border-radius:16px;}
  .cta-card h2{font-size:20px;}
  .cta-card__actions{width:100%;}
  .cta-card__actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .breadcrumb li[aria-current]{max-width:200px;}
  .section{margin-top:48px;}
  .site-footer{margin-top:64px;}
}

/* roulang page: category1 */
:root{
  --brand-600:#2757D9;
  --brand-700:#1B3E9E;
  --brand-100:#E8EFFF;
  --brand-50:#F3F7FF;
  --accent-500:#FF7A3D;
  --accent-100:#FFEDE3;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A72;
  --ink-400:#8494AB;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --success:#12A17A;
  --warn:#E8A400;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-img:12px;
  --shadow-sm:0 1px 2px rgba(16,35,70,.06);
  --shadow-md:0 6px 18px rgba(16,35,70,.08);
  --shadow-lg:0 16px 40px rgba(16,35,70,.10);
  --font-base:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-600);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;background:#EEF2F8;border-radius:var(--r-img);}
a{color:var(--brand-600);text-decoration:none;transition:color 180ms ease-out;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--brand-100);outline-offset:2px;border-radius:6px;}

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

/* ---------------- Foundation 栅格定制 ---------------- */
.row{max-width:none;margin-left:-12px;margin-right:-12px;}
.row .column,.row .columns{padding-left:12px;padding-right:12px;float:none;}
.row::before,.row::after{content:"";display:table;clear:both;}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out,box-shadow 180ms ease-out,transform 180ms ease-out;
  white-space:nowrap;
}
.btn--primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn--primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn--ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn--ghost:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-700);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--sm{height:44px;padding:0 20px;font-size:15px;}
.btn--block{width:100%;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);
  transition:color 180ms ease-out;
}
.text-link span{transition:transform 180ms ease-out;}
.text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover span{transform:translateX(3px);}

/* ---------------- 徽章 ---------------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:4px 10px;
  font-size:12px;font-weight:600;line-height:1;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);white-space:nowrap;
}
.badge--accent{background:var(--accent-100);color:#B4491A;}
.badge--solid{background:var(--accent-500);color:#fff;}
.badge--ok{background:#E3F6F0;color:#0B7A5C;}

/* ---------------- 顶部导航 ---------------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow 180ms ease-out;
}
.site-header.is-stuck{box-shadow:var(--shadow-sm);}
.nav{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo__mark{
  width:38px;height:38px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-600);color:#fff;
  font-size:14px;font-weight:700;letter-spacing:.5px;
  border-radius:10px;
}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__name{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.5px;}
.logo__sub{font-size:12px;color:var(--ink-400);letter-spacing:1.5px;}
.nav__menu{display:flex;align-items:center;gap:30px;}
.nav__link{
  position:relative;display:inline-block;
  padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-600);
  transition:color 180ms ease-out;
}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--brand-600);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform 180ms ease-out;
}
.nav__link:hover{color:var(--brand-600);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--brand-600);font-weight:600;}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__actions{display:flex;align-items:center;gap:20px;}
.nav__text-link{font-size:14px;}

/* ---------------- 移动底部 Tab ---------------- */
.mobile-tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:120;
  height:calc(62px + env(safe-area-inset-bottom,0px));
  padding-bottom:env(safe-area-inset-bottom,0px);
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(16,35,70,.10);
}
.mobile-tabbar__item{
  flex:1 1 0;position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  color:var(--ink-400);font-size:11px;
  transition:color 180ms ease-out;
}
.mobile-tabbar__item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tabbar__item.is-active{color:var(--brand-600);font-weight:600;}
.mobile-tabbar__item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:24px;height:2px;border-radius:2px;background:var(--brand-600);
}

/* ---------------- 通用板块 ---------------- */
.section{padding:88px 0;}
.section--soft{background:var(--brand-50);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head__title{font-size:30px;line-height:1.35;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;}
.section-head__desc{margin-top:8px;font-size:14px;color:var(--ink-400);}

/* ---------------- 面包屑 ---------------- */
.crumb{padding-top:24px;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--line);}
.crumb a{color:var(--ink-400);}
.crumb a:hover{color:var(--brand-600);}
.crumb .is-current{color:var(--ink-600);}

/* ---------------- Hero ---------------- */
.cat-hero{padding:32px 0 0;}
.cat-hero__row{display:flex;align-items:center;flex-wrap:wrap;}
.cat-hero__title{
  margin-top:16px;
  font-size:44px;line-height:1.22;font-weight:700;letter-spacing:-.5px;
  color:var(--ink-900);
}
.cat-hero__sub{
  margin-top:18px;max-width:620px;
  font-size:20px;line-height:1.6;color:var(--ink-600);
}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.cat-hero__media{position:relative;}
.cat-hero__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-lg);}
.cat-hero__meta{
  position:relative;margin:-28px 16px 0;padding:16px 20px;
  display:flex;justify-content:space-between;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-md);
}
.cat-hero__meta div{display:flex;flex-direction:column;gap:2px;}
.cat-hero__meta dt{font-size:12px;color:var(--ink-400);}
.cat-hero__meta dd{margin:0;font-size:15px;font-weight:600;color:var(--ink-900);}

/* ---------------- 数据条 ---------------- */
.stats{padding:56px 0 0;}
.stats__inner{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.stats__item{padding:28px 24px;border-left:1px solid var(--line);}
.stats__item:first-child{border-left:none;}
.stats__num{font-size:28px;line-height:1.2;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.stats__label{margin-top:6px;font-size:13px;color:var(--ink-400);}

/* ---------------- 卡片 ---------------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);padding:24px;
  transition:box-shadow 180ms ease-out,transform 180ms ease-out,border-color 180ms ease-out;
}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.card__title{margin-top:14px;font-size:20px;line-height:1.45;font-weight:600;color:var(--ink-900);transition:color 180ms ease-out;}
.card:hover .card__title{color:var(--brand-600);}
.card__desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-600);}
.card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);}
.card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;font-size:13px;color:var(--ink-400);}

/* ---------------- 简报板块 ---------------- */
.brief-col{display:flex;flex-direction:column;gap:16px;}
.mini-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow-sm);flex:1 1 auto;
  transition:box-shadow 180ms ease-out,transform 180ms ease-out;
}
.mini-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.mini-card__title{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink-900);transition:color 180ms ease-out;}
.mini-card:hover .mini-card__title{color:var(--brand-600);}
.mini-card__desc{font-size:14px;line-height:1.7;color:var(--ink-600);}
.mini-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-400);}

/* ---------------- 栏目方向 ---------------- */
.direction-list{display:flex;flex-direction:column;gap:12px;height:100%;}
.direction-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  transition:box-shadow 180ms ease-out,transform 180ms ease-out,background-color 180ms ease-out;
}
.direction-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);background:var(--brand-50);}
.direction-item__icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
}
.direction-item__icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.direction-item h3{font-size:17px;line-height:1.45;font-weight:600;color:var(--ink-900);}
.direction-item p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--ink-600);}

/* ---------------- 步骤 ---------------- */
.steps{margin-top:8px;}
.step{position:relative;padding-left:56px;padding-bottom:30px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:15.5px;top:34px;bottom:0;width:1px;background:var(--line);
}
.step:last-child::before{display:none;}
.step__num{
  position:absolute;left:0;top:0;
  width:32px;height:32px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;}
.step p{margin-top:4px;font-size:13px;line-height:1.75;color:var(--ink-400);}

/* ---------------- 表单 ---------------- */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-md);padding:24px;
}
.form-card__title{font-size:20px;font-weight:600;color:var(--ink-900);}
.form-card__desc{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-600);}
.form-field{margin-top:18px;}
.form-field label{display:block;margin-bottom:8px;font-size:14px;font-weight:600;color:var(--ink-600);}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:48px;padding:0 14px;
  font-family:inherit;font-size:14px;color:var(--ink-900);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  box-shadow:none;margin-bottom:0;
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.form-field textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--ink-400);}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--brand-100);
}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-400);}
.form-submit{margin-top:20px;}

/* ---------------- 读者列表 ---------------- */
.reader-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.reader-row{
  display:flex;align-items:center;gap:20px;
  padding:22px 24px;border-top:1px solid var(--line);
  transition:background-color 180ms ease-out;
}
.reader-row:first-child{border-top:none;}
.reader-row:hover{background:var(--brand-50);}
.reader-row__no{
  flex:0 0 32px;width:32px;height:32px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
}
.reader-row__main{flex:1 1 auto;min-width:0;}
.reader-row h3{font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;}
.reader-row p{margin-top:4px;font-size:14px;line-height:1.7;color:var(--ink-600);}
.reader-row__link{flex:0 0 auto;}

/* ---------------- FAQ ---------------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-child{border-top:none;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;
  list-style:none;
  transition:color 180ms ease-out,background-color 180ms ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-600);background:var(--brand-50);}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:20px;height:20px;line-height:18px;text-align:center;
  font-size:20px;font-weight:400;color:var(--brand-600);
  transition:transform 180ms ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item__body{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--ink-600);}
.faq-item__body p{padding-top:8px;}

/* ---------------- CTA ---------------- */
.cta-band{
  background:var(--brand-50);border-radius:var(--r-lg);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band__title{font-size:26px;line-height:1.4;font-weight:700;color:var(--ink-900);}
.cta-band__desc{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-600);}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ---------------- 页脚 ---------------- */
.site-footer{background:#0E1A2B;color:#B8C4D6;padding:72px 0 0;margin-top:88px;}
.site-footer a{color:#B8C4D6;}
.site-footer a:hover{color:#FFFFFF;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo__mark{background:var(--brand-600);}
.footer-brand .logo__name{color:#FFFFFF;}
.footer-brand .logo__sub{color:#8494AB;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;max-width:300px;color:#B8C4D6;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;font-size:13px;color:#93A2B8;line-height:1.7;}
.footer-col h4{font-size:15px;font-weight:600;color:#FFFFFF;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 28px;font-size:13px;color:#8494AB;
}

/* ---------------- 响应式 ---------------- */
@media (max-width:1023px){
  .nav__menu{display:none;}
  .nav__text-link{display:none;}
  .mobile-tabbar{display:flex;}
  body{padding-bottom:calc(78px + env(safe-area-inset-bottom,0px));}
  .section{padding:64px 0;}
  .cat-hero__title{font-size:36px;}
  .cat-hero__sub{font-size:18px;}
  .cat-hero__media{margin-top:36px;}
  .stats__inner{grid-template-columns:repeat(2,1fr);}
  .stats__item:nth-child(3){border-left:none;}
  .stats__item:nth-child(n+3){border-top:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .site-footer{padding-top:48px;margin-top:64px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .row{margin-left:-8px;margin-right:-8px;}
  .row .column,.row .columns{padding-left:8px;padding-right:8px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head__title{font-size:22px;}
  .cat-hero__title{font-size:30px;line-height:1.3;}
  .cat-hero__sub{font-size:16px;}
  .cat-hero__actions .btn{width:100%;}
  .cat-hero__meta{margin:-24px 8px 0;padding:14px 16px;}
  .stats__item{padding:20px 16px;}
  .stats__num{font-size:24px;}
  .card{padding:20px;}
  .card__title{font-size:18px;}
  .reader-row{flex-wrap:wrap;padding:18px;}
  .reader-row__link{width:100%;}
  .cta-band{padding:24px;}
  .cta-band__title{font-size:21px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{padding:18px;font-size:15px;}
  .faq-item__body{padding:0 18px 18px;}
}

/* roulang page: category2 */
:root{
  --brand-600:#2757D9;
  --brand-700:#1B3E9E;
  --brand-100:#E8EFFF;
  --brand-50:#F3F7FF;
  --accent-500:#FF7A3D;
  --accent-100:#FFEDE3;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A72;
  --ink-400:#8494AB;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --success:#12A17A;
  --warn:#E8A400;
  --shadow-sm:0 1px 2px rgba(16,35,70,.06);
  --shadow-md:0 6px 18px rgba(16,35,70,.08);
  --shadow-lg:0 16px 40px rgba(16,35,70,.10);
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-img:12px;
  --tr:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{color-scheme:light;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-600);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border-radius:var(--r-img);object-fit:cover;background:#EEF2F8}
a{color:var(--brand-600);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink-900);font-weight:700;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100);border-radius:6px}

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

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900)}
.logo:hover{color:var(--ink-900)}
.logo__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;flex:none;
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
}
.logo__text{display:flex;flex-direction:column;line-height:1.18}
.logo__name{font-size:17px;font-weight:700;color:var(--ink-900);letter-spacing:.2px}
.logo__sub{font-size:12px;color:var(--ink-400)}
.nav__menu{display:flex;align-items:center;gap:4px}
.nav__link{
  position:relative;display:block;padding:10px 14px;font-size:15px;
  color:var(--ink-600);border-radius:8px;transition:color var(--tr),background var(--tr);
}
.nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-15px;height:2px;
  background:transparent;border-radius:2px;transition:background var(--tr);
}
.nav__link:hover{color:var(--brand-600);background:var(--brand-50)}
.nav__link.is-active{color:var(--brand-600);font-weight:600}
.nav__link.is-active::after{background:var(--brand-600)}
.nav__actions{display:flex;align-items:center;gap:16px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr);
}
.btn--primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn--primary:active{transform:none;box-shadow:var(--shadow-sm)}
.btn--ghost{background:#fff;border-color:var(--brand-600);color:var(--brand-600)}
.btn--ghost:hover{background:var(--brand-50);border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-1px)}
.btn--ghost:active{transform:none}
.btn--sm{height:44px;padding:0 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.text-link span{transition:transform var(--tr)}
.text-link:hover span{transform:translateX(3px);text-decoration:underline;text-underline-offset:3px}

/* 页面横幅与面包屑 */
.page-banner{margin-top:32px}
.page-banner img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:16px;font-size:13px;color:var(--ink-400)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--ink-400)}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb li[aria-current]{color:var(--ink-600)}

/* 页面头部 */
.page-hero{padding:48px 0 0;margin-top:0}
.eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-600);
  font-size:12px;font-weight:600;letter-spacing:.3px;
}
.page-title{
  font-size:44px;line-height:1.22;letter-spacing:-.5px;
  margin:18px 0 14px;max-width:860px;
}
.page-lead{font-size:20px;line-height:1.6;color:var(--ink-600);max-width:740px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* 板块 */
.section{margin-top:88px}
section[id]{scroll-margin-top:96px}
.section-head{margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.35;letter-spacing:-.2px}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-400)}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* 数据条 */
.stats-row{
  display:flex;flex-wrap:wrap;margin:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.stats-row .column{padding:0;float:none}
.stat{padding:28px 24px;height:100%}
.stats-row .column + .column .stat{border-left:1px solid var(--line)}
.stat__num{
  font-size:28px;font-weight:700;color:var(--brand-700);
  line-height:1.2;font-variant-numeric:tabular-nums;
}
.stat__label{font-size:13px;color:var(--ink-400);margin-top:6px}

/* 交替图文行 */
.feature-list{display:grid;gap:64px}
.feature{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature__media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--shadow-sm);transition:box-shadow var(--tr),transform var(--tr);
}
.feature:hover .feature__media img{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.feature--reverse .feature__media{order:2}
.feature__body h3{font-size:22px;font-weight:600;line-height:1.45;margin:12px 0 10px}
.feature__body > p{font-size:15px;line-height:1.75;color:var(--ink-600)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-600);
  font-size:12px;font-weight:600;
}
.spec-list{margin:16px 0 20px}
.spec-list li{
  position:relative;padding-left:16px;margin-bottom:8px;
  font-size:15px;line-height:1.7;color:var(--ink-600);
}
.spec-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:50%;background:var(--brand-600);
}

/* 流程 */
.flow-steps{display:flex;align-items:flex-start;gap:0}
.flow-step{flex:1;padding-right:24px;min-width:0}
.flow-step:last-child{padding-right:0}
.flow-step__head{display:flex;align-items:center;gap:12px}
.flow-step__num{
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  width:32px;height:32px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-600);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.flow-step__dash{flex:1;border-top:1px dashed var(--line)}
.flow-step__title{font-size:16px;font-weight:600;margin-top:16px;line-height:1.5}
.flow-step__desc{font-size:13px;line-height:1.7;color:var(--ink-400);margin-top:6px}

/* FAQ */
.faq{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.faq__item + .faq__item{border-top:1px solid var(--line)}
.faq__item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink-900);
  cursor:pointer;list-style:none;transition:background var(--tr),color var(--tr);
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{background:var(--brand-50);color:var(--brand-600)}
.faq__item summary::after{
  content:"+";flex:none;font-size:20px;font-weight:400;line-height:1;
  color:var(--brand-600);transition:transform var(--tr);
}
.faq__item[open] summary::after{transform:rotate(45deg)}
.faq__item[open] summary{color:var(--brand-600)}
.faq__answer{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--ink-600)}

/* CTA */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--brand-50);border-radius:var(--r-lg);padding:40px;
}
.cta-band h2{font-size:26px;line-height:1.35}
.cta-band p{margin-top:8px;font-size:14px;color:var(--ink-600);max-width:560px}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:#0E1A2B;color:#B8C4D6;margin-top:88px;padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.site-footer .logo__name{color:#FFFFFF}
.site-footer .logo__sub{color:#8494AB}
.site-footer .logo:hover .logo__name{color:#FFFFFF}
.footer-desc{font-size:14px;line-height:1.8;margin-top:16px;color:#9FB0C7;max-width:300px}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:20px;font-size:13px;line-height:1.7;color:#9FB0C7}
.footer-contact a{color:#B8C4D6}
.footer-contact a:hover{color:#FFFFFF}
.footer-col h4{font-size:14px;color:#FFFFFF;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#B8C4D6}
.footer-col a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:#8494AB;
}

/* 移动底部 Tab */
.mobile-tab{display:none}
.mobile-tab
{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(16,35,70,.10);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab__item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;height:62px;font-size:11px;color:var(--ink-400);
  transition:color var(--tr);
}
.mobile-tab__item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mobile-tab__item.is-active{color:var(--brand-600)}
.mobile-tab__item.is-active::before{
  content:"";position:absolute;top:0;width:24px;height:2px;
  background:var(--brand-600);border-radius:2px;
}

/* 平板 */
@media (max-width:1023px){
  .nav__menu{display:none}
  .nav__text-link{display:none}
  .nav{height:64px}
  .nav__actions .btn--sm{height:40px;padding:0 14px;font-size:13px}
  .mobile-tab{display:flex}
  body{padding-bottom:78px}
  .page-title{font-size:34px}
  .page-lead{font-size:18px}
  .section{margin-top:64px}
  .feature{gap:32px}
  .flow-step{padding-right:16px}
}

/* 手机与窄屏 */
@media (max-width:959px){
  .feature{grid-template-columns:1fr;gap:16px}
  .feature--reverse .feature__media{order:0}
  .feature-list{gap:48px}
  .feature__body h3{font-size:20px}
  .flow-steps{flex-direction:column;gap:24px}
  .flow-step{padding-right:0;width:100%}
  .flow-step__dash{display:none}
  .flow-step__title{margin-top:12px}
}

@media (max-width:767px){
  .container{padding:0 16px}
  .page-banner{margin-top:20px}
  .page-banner img{aspect-ratio:16/10;border-radius:var(--r-card)}
  .page-hero{padding-top:32px}
  .page-title{font-size:30px;line-height:1.3;letter-spacing:-.2px}
  .page-lead{font-size:17px}
  .section{margin-top:48px}
  .section-head h2{font-size:22px}
  .stat{padding:20px 16px}
  .stat__num{font-size:24px}
  .cta-band{padding:24px;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:21px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1}
  .site-footer{padding:40px 0 24px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq__item summary{padding:16px;font-size:15px}
  .faq__answer{padding:0 16px 18px}
  .hero-actions .btn{flex:1}
}

@media (max-width:519px){
  .stat__num{font-size:22px}
  .stat__label{font-size:12px}
  .logo__name{font-size:16px}
}

/* roulang page: category3 */
:root{
  --brand-600:#2757D9;
  --brand-700:#1B3E9E;
  --brand-100:#E8EFFF;
  --brand-50:#F3F7FF;
  --accent-500:#FF7A3D;
  --accent-100:#FFEDE3;
  --accent-ink:#C4511B;
  --ink-900:#0F1B2D;
  --ink-600:#4A5A72;
  --ink-400:#8494AB;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --ok:#12A17A;
  --warn:#E8A400;
  --r-btn:10px;
  --r-img:12px;
  --r-card:16px;
  --r-lg:20px;
  --shadow-sm:0 1px 2px rgba(16,35,70,.06);
  --shadow-md:0 6px 18px rgba(16,35,70,.08);
  --shadow-lg:0 16px 40px rgba(16,35,70,.10);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-600);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink-900);font-weight:700;line-height:1.35;}
p{margin:0;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand-700);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
ul,ol,dl{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;}
input,textarea,select{font:inherit;}
:focus-visible{outline:3px solid var(--brand-100);outline-offset:2px;border-radius:6px;}

/* ---------- 栅格与容器 ---------- */
.row{max-width:1248px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;}
.row .column,.row .columns{padding-left:12px;padding-right:12px;}
.container{width:100%;max-width:1248px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);}
.logo:hover{color:var(--ink-900);}
.logo__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:10px;
  background:var(--brand-600);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;
}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__name{font-size:17px;font-weight:700;letter-spacing:.5px;color:var(--ink-900);}
.logo__sub{font-size:12px;font-weight:400;letter-spacing:1px;color:var(--ink-400);}
.nav__menu{display:flex;align-items:center;gap:8px;}
.nav__link{position:relative;display:block;padding:24px 14px;font-size:15px;font-weight:500;color:var(--ink-600);}
.nav__link:hover{color:var(--brand-600);}
.nav__link.is-active{color:var(--brand-600);font-weight:600;}
.nav__link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.nav__actions{display:flex;align-items:center;gap:16px;}
.nav__text-link{font-size:14px;}

/* ---------- 按钮与链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
}
.btn--sm{height:44px;padding:0 20px;font-size:14px;}
.btn--primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn--primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn--primary:active{transform:none;box-shadow:var(--shadow-sm);}
.btn--ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn--ghost:hover{background:var(--brand-50);border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-1px);}
.btn--ghost:active{transform:none;}
.btn--block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);}
.text-link span{transition:transform var(--t);}
.text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover span{transform:translateX(3px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.badge--accent{background:var(--accent-100);color:var(--accent-ink);}
.badge--brand{background:var(--brand-100);color:var(--brand-600);}
.badge--ok{background:#E6F6F1;color:var(--ok);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:20px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--ink-400);}
.breadcrumb a{color:var(--ink-400);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .current{color:var(--ink-600);}

/* ---------- Hero ---------- */
.hero{background:var(--brand-50);border-bottom:1px solid var(--line);padding:44px 0 72px;}
.hero__title{
  font-size:44px;line-height:1.22;letter-spacing:-.5px;font-weight:700;
  margin:16px 0 16px;color:var(--ink-900);
}
.hero__lead{font-size:18px;line-height:1.8;color:var(--ink-600);max-width:580px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero__stats{
  display:flex;flex-wrap:wrap;gap:40px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
}
.stat__num{font-size:26px;font-weight:700;line-height:1.2;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.stat__label{font-size:13px;color:var(--ink-400);margin-top:2px;}
.hero__figure{aspect-ratio:16 / 9;overflow:hidden;border-radius:var(--r-img);box-shadow:var(--shadow-lg);}
.hero__figure img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-img);}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section--white{background:#fff;}
.section--tight{padding:64px 0;}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.section__title{font-size:30px;line-height:1.35;font-weight:700;color:var(--ink-900);}
.section__sub{margin-top:8px;font-size:14px;color:var(--ink-400);}

/* ---------- 流程 ---------- */
.step{position:relative;padding-right:8px;}
.step:not(:last-child)::after{
  content:"";position:absolute;left:100%;top:16px;width:24px;
  border-top:1px dashed var(--line);
}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-600);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step__title{font-size:16px;font-weight:600;color:var(--ink-900);margin:14px 0 6px;}
.step__desc{font-size:13px;line-height:1.75;color:var(--ink-600);}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq__item + .faq__item{border-top:1px solid var(--line);}
.faq__item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;list-style:none;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink-900);
  transition:background-color var(--t),color var(--t);
}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary:hover{background:var(--brand-50);color:var(--brand-600);}
.faq__item summary:focus-visible{outline:3px solid var(--brand-100);outline-offset:-3px;}
.faq__icon{position:relative;flex:0 0 20px;width:20px;height:20px;color:var(--brand-600);transition:transform var(--t);}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq__icon::before{left:2px;right:2px;top:9px;height:2px;}
.faq__icon::after{top:2px;bottom:2px;left:9px;width:2px;}
.faq__item[open] .faq__icon{transform:rotate(45deg);}
.faq__body{padding:8px 24px 20px;font-size:15px;line-height:1.8;color:var(--ink-600);}

/* ---------- 联系表单卡 ---------- */
.contact-card{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-md);padding:24px;
}
.contact-card__title{font-size:20px;font-weight:600;color:var(--ink-900);}
.contact-card__desc{margin-top:6px;font-size:14px;color:var(--ink-600);}
.form-field{margin-top:16px;}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink-600);margin-bottom:6px;}
.form-input,.form-textarea{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:14px;color:var(--ink-900);background:#fff;
  transition:border-color var(--t),box-shadow var(--t);
}
.form-textarea{height:auto;min-height:88px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-input::placeholder,.form-textarea::placeholder{color:var(--ink-400);}
.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--brand-100);}
.form-submit{margin-top:20px;}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-400);}
.contact-lines{
  margin-top:20px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:10px;
}
.contact-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-600);}
.contact-line svg{flex:0 0 18px;color:var(--brand-600);}
.contact-line a{color:var(--ink-600);}
.contact-line a:hover{color:var(--brand-600);}

/* ---------- 图文区 ---------- */
.figure{width:100%;aspect-ratio:16 / 10;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow-md);}
.split-row{align-items:center;}
.bullet-list{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.bullet-list li{position:relative;padding-left:18px;font-size:15px;line-height:1.8;color:var(--ink-600);}
.bullet-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-600);
}
.lead-text{font-size:16px;line-height:1.85;color:var(--ink-600);margin-top:12px;}

/* ---------- 承诺卡 ---------- */
.promise{
  height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:box-shadow var(--t),transform var(--t);
}
.promise:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.promise__icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-50);
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.promise__title{font-size:18px;font-weight:600;color:var(--ink-900);}
.promise__desc{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-600);}

/* ---------- CTA ---------- */
.cta{
  background:var(--brand-50);border-radius:var(--r-lg);
  padding:40px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta__title{font-size:26px;line-height:1.35;font-weight:700;color:var(--ink-900);}
.cta__desc{margin-top:8px;font-size:15px;color:var(--ink-600);}
.cta__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1A2B;color:#B8C4D6;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;}
.footer-brand .logo__name{color:#fff;}
.footer-brand .logo__sub{color:#8FA0B8;}
.footer-brand .logo__mark{background:var(--brand-600);}
.footer-desc{margin:16px 0;font-size:14px;line-height:1.8;color:#B8C4D6;max-width:300px;}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;color:#8FA0B8;}
.footer-contact a{color:#8FA0B8;}
.footer-contact a:hover{color:#fff;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#B8C4D6;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 28px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:#8FA0B8;
}
.site-footer :focus-visible{outline:3px solid rgba(255,255,255,.35);outline-offset:2px;}

/* ---------- 移动底部 Tab ---------- */
.tabbar{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav{height:64px;}
  .nav__menu{display:none;}
  .hero{padding:32px 0 56px;}
  .hero__title{font-size:34px;}
  .hero__figure{margin-top:32px;}
  .section{padding:64px 0;}
  .section__title{font-size:26px;}
  .step:not(:last-child)::after{display:none;}
  .step{margin-bottom:24px;}
  .contact-card{position:static;margin-top:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(16,35,70,.08);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tabbar__item{
    flex:1;position:relative;height:62px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    font-size:11px;color:var(--ink-400);
  }
  .tabbar__item.is-active{color:var(--brand-600);}
  .tabbar__item.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:24px;height:2px;border-radius:2px;background:var(--brand-600);
  }
  body{padding-bottom:78px;}
}
@media (max-width:640px){
  .row{padding-left:16px;padding-right:16px;}
  .row .column,.row .columns{padding-left:8px;padding-right:8px;}
  .container{padding:0 16px;}
  .nav__text-link{display:none;}
  .hero{padding:24px 0 44px;}
  .hero__title{font-size:30px;line-height:1.3;}
  .hero__lead{font-size:16px;}
  .hero__stats{gap:24px;}
  .stat__num{font-size:22px;}
  .section{padding:48px 0;}
  .section__title{font-size:22px;}
  .section__head{margin-bottom:24px;}
  .btn{width:100%;}
  .hero__actions .btn{width:100%;}
  .faq__item summary{padding:16px 20px;font-size:15px;}
  .faq__body{padding:6px 20px 18px;}
  .cta{padding:24px;text-align:center;justify-content:center;}
  .cta__title{font-size:22px;}
  .cta__actions{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px;}
  .site-footer{padding:40px 0 0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}