/* roulang page: index */
:root{
  --c-primary:#1F5AA6;
  --c-primary-600:#18498A;
  --c-primary-100:#E7F0FB;
  --c-accent:#E8902A;
  --c-accent-100:#FDF1E0;
  --c-teal:#12A594;
  --c-danger:#D14343;
  --c-muted-badge:#8494A8;
  --bg-page:#F6F8FB;
  --bg-card:#FFFFFF;
  --bg-band:#EEF3FA;
  --bg-footer:#0F2039;
  --tx-1:#0F1B2D;
  --tx-2:#4A5A70;
  --tx-3:#8494A8;
  --tx-invert:#FFFFFF;
  --tx-invert-2:rgba(255,255,255,.72);
  --bd:#E3EAF3;
  --bd-strong:#CFDCEB;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,64,.04);
  --sh-2:0 8px 24px -12px rgba(16,32,64,.12);
  --sh-hover:0 14px 32px -14px rgba(16,32,64,.18);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --container:1200px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",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);font-size:16px;line-height:1.75;color:var(--tx-1);background:var(--bg-page);letter-spacing:.01em;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-600);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3;font-weight:700;color:var(--tx-1);}
p{margin:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,90,166,.28);border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-footer);color:var(--tx-invert-2);font-size:13px;height:36px;display:flex;align-items:center;overflow:hidden;}
.topbar__inner{display:flex;align-items:center;gap:16px;width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.topbar__dot{width:8px;height:8px;border-radius:50%;background:var(--c-teal);flex:0 0 auto;box-shadow:0 0 0 3px rgba(18,165,148,.2);}
.topbar__tag{color:#fff;font-weight:600;flex:0 0 auto;}
.topbar__ticker{flex:1 1 auto;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:rgba(255,255,255,.72);}
.topbar__links{display:flex;gap:18px;flex:0 0 auto;}
.topbar__links a{color:rgba(255,255,255,.72);}
.topbar__links a:hover{color:#fff;}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--bd);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header__inner{display:flex;align-items:center;gap:24px;height:72px;max-width:var(--container);margin:0 auto;padding:0 24px;transition:height .25s ease;}
.site-header.is-scrolled .header__inner{height:60px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo__mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);display:grid;place-items:center;flex:0 0 auto;box-shadow:var(--sh-1);}
.logo__mark svg{width:20px;height:20px;}
.logo__text{font-size:17px;font-weight:700;color:var(--tx-1);letter-spacing:0;}
.logo__sub{display:block;font-size:11px;font-weight:500;color:var(--tx-3);letter-spacing:.04em;}
.nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav__list{display:flex;align-items:center;gap:6px;}
.nav__link{position:relative;display:inline-block;padding:10px 14px;font-size:15px;font-weight:500;color:var(--tx-2);border-radius:8px;}
.nav__link:hover{color:var(--c-primary);background:var(--c-primary-100);}
.nav__link.is-active{color:var(--c-primary);font-weight:600;}
.nav__link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary);}
.header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.header__badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--c-accent);background:var(--c-accent-100);border-radius:var(--r-pill);padding:5px 10px;}
.header__badge i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:block;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .2s ease;white-space:nowrap;}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:scale(.98);}
.btn--ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn--ghost:hover{background:#EAF1FD;color:var(--c-primary-600);transform:translateY(-1px);}
.btn--line{background:transparent;color:var(--tx-2);border-color:var(--bd-strong);}
.btn--line:hover{border-color:var(--bd-strong);background:#fff;color:var(--c-primary);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.btn__icon{width:16px;height:16px;flex:0 0 auto;}

/* ---------- 汉堡 ---------- */
.hamburger{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--bd);background:#fff;align-items:center;justify-content:center;}
.hamburger span{display:block;width:18px;height:2px;background:var(--tx-1);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--tx-1);border-radius:2px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.drawer{position:fixed;inset:0 0 0 auto;width:300px;max-width:86vw;background:#fff;z-index:120;transform:translateX(105%);transition:transform .28s ease;padding:20px;box-shadow:-10px 0 30px -18px rgba(16,32,64,.4);display:flex;flex-direction:column;gap:8px;overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid var(--bd);display:grid;place-items:center;font-size:20px;color:var(--tx-2);line-height:1;}
.drawer__link{display:block;padding:13px 14px;border-radius:10px;font-size:16px;font-weight:500;color:var(--tx-1);border:1px solid var(--bd);}
.drawer__link:hover{background:var(--c-primary-100);color:var(--c-primary);}
.drawer__link.is-active{background:var(--c-primary-100);color:var(--c-primary);font-weight:600;border-color:rgba(31,90,166,.28);}
.scrim{position:fixed;inset:0;background:rgba(15,27,45,.42);z-index:110;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;}
.scrim.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.hero{padding:56px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg-page) 100%);}
.hero__grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,4fr);gap:56px;align-items:center;}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-100);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:20px;}
.hero__eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:block;}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;margin-bottom:16px;}
.hero__lead{font-size:17px;line-height:1.8;color:var(--tx-2);max-width:560px;margin-bottom:26px;}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.hero__stats{display:flex;flex-wrap:wrap;gap:32px;padding-top:24px;border-top:1px solid var(--bd);}
.stat__num{font-size:26px;font-weight:700;color:var(--tx-1);line-height:1.2;}
.stat__num em{font-style:normal;font-size:15px;font-weight:600;color:var(--c-accent);margin-left:2px;}
.stat__label{font-size:13px;color:var(--tx-3);margin-top:4px;}
.hero__media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--bd);box-shadow:var(--sh-2);aspect-ratio:16/10;background:#DCE7F5;}
.hero__media img{width:100%;height:100%;object-fit:cover;}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.12) 0%,rgba(15,27,45,.28) 100%);}
.hero__badge{position:absolute;top:16px;left:16px;z-index:2;display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.94);border-radius:var(--r-pill);padding:7px 14px;font-size:12px;font-weight:600;color:var(--c-primary);box-shadow:var(--sh-1);}
.hero__count{position:absolute;top:16px;right:16px;z-index:2;background:rgba(15,32,57,.82);color:#fff;border-radius:10px;padding:8px 12px;font-size:12px;letter-spacing:.02em;}
.hero__count strong{font-size:15px;color:#fff;margin-left:4px;}
.hero__caption{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;font-size:14px;line-height:1.6;text-shadow:0 1px 8px rgba(15,27,45,.5);}

/* ---------- 快捷入口 ---------- */
.quick{padding:0 0 64px;}
.quick__list{display:flex;gap:12px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;}
.quick__list::-webkit-scrollbar{display:none;}
.quick__item{flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--bd);border-radius:var(--r-pill);padding:11px 18px;font-size:14px;font-weight:500;color:var(--tx-2);box-shadow:var(--sh-1);transition:all .2s ease;}
.quick__item:hover{color:var(--c-primary);border-color:rgba(31,90,166,.28);transform:translateY(-2px);box-shadow:var(--sh-hover);}
.quick__item svg{width:16px;height:16px;color:var(--c-primary);}
.quick__item b{font-weight:700;color:var(--tx-1);}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section--band{background:var(--bg-band);}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section__head h2{font-size:clamp(22px,2.6vw,30px);}
.section__desc{font-size:15px;color:var(--tx-2);margin-top:10px;max-width:640px;}
.section__more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.section__more svg{width:14px;height:14px;transition:transform .2s ease;}
.section__more:hover svg{transform:translateX(4px);}

/* ---------- 热门内容网格 ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{background:var(--bg-card);border:1px solid var(--bd);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;}
.card:hover{transform:translateY(-2px);border-color:rgba(31,90,166,.28);box-shadow:var(--sh-hover);}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#DCE7F5;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card__media img{transform:scale(1.03);}
.card__tag{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);color:var(--c-primary);font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:4px 10px;}
.card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card__title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__text{font-size:14px;line-height:1.7;color:var(--tx-2);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;padding-top:6px;}
.card__foot .meta{font-size:12px;color:var(--tx-3);}
.card__arrow{width:28px;height:28px;border-radius:50%;border:1px solid var(--bd);display:grid;place-items:center;color:var(--c-primary);transition:transform .2s ease,background .2s ease;}
.card:hover .card__arrow{transform:translateX(4px);background:var(--c-primary-100);}
.card__arrow svg{width:13px;height:13px;}
.card--feature{grid-column:span 2;}
.card--feature .card__media{aspect-ratio:21/9;}
.card--feature .card__title{font-size:21px;}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:3px 10px;background:var(--c-primary-100);color:var(--c-primary);}
.badge--accent{background:var(--c-accent-100);color:var(--c-accent);}
.badge--muted{background:#EEF1F5;color:var(--c-muted-badge);}

/* ---------- 服务保障条 ---------- */
.guard{padding:32px 0;background:#fff;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);}
.guard__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.guard__item{display:flex;gap:12px;padding:0 24px;border-left:1px solid var(--bd);}
.guard__item:first-child{border-left:none;padding-left:0;}
.guard__icon{width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:var(--c-primary-100);display:grid;place-items:center;color:var(--c-primary);}
.guard__icon svg{width:19px;height:19px;}
.guard__title{font-size:15px;font-weight:600;}
.guard__text{font-size:13px;color:var(--tx-2);line-height:1.7;margin-top:2px;}

/* ---------- 资讯列表（CMS） ---------- */
.posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;gap:12px;}
.post:hover{transform:translateY(-2px);border-color:rgba(31,90,166,.28);box-shadow:var(--sh-hover);}
.post__title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post__title a{color:var(--tx-1);}
.post__title a:hover{color:var(--c-primary);}
.post__excerpt{font-size:14px;line-height:1.75;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px;border-top:1px solid var(--bd);}
.post__foot time{font-size:12px;color:var(--tx-3);}
.empty{grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--bd-strong);border-radius:var(--r-card);background:#fff;}
.empty__icon{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;background:var(--c-primary-100);display:grid;place-items:center;color:var(--c-primary);}
.empty__icon svg{width:24px;height:24px;}
.empty p{font-size:15px;color:var(--tx-2);margin-bottom:16px;}

/* ---------- 评价 ---------- */
.reviews{position:relative;}
.reviews__track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 20px;scrollbar-width:none;}
.reviews__track::-webkit-scrollbar{display:none;}
.review{flex:0 0 320px;scroll-snap-align:start;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
.review__stars{display:flex;gap:3px;color:var(--c-accent);margin-bottom:12px;}
.review__stars svg{width:14px;height:14px;}
.review__text{font-size:15px;line-height:1.8;color:var(--tx-2);min-height:108px;}
.review__user{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid var(--bd);}
.review__avatar{width:36px;height:36px;border-radius:50%;background:var(--c-primary-100);color:var(--c-primary);display:grid;place-items:center;font-size:14px;font-weight:700;flex:0 0 auto;}
.review__name{font-size:14px;font-weight:600;color:var(--tx-1);}
.review__role{font-size:12px;color:var(--tx-3);}
.reviews__nav{display:flex;gap:10px;justify-content:flex-end;margin-top:4px;}
.reviews__btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--bd-strong);background:#fff;display:grid;place-items:center;color:var(--tx-2);transition:all .2s ease;}
.reviews__btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-100);}
.reviews__btn svg{width:16px;height:16px;}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--bg-band);border:1px solid var(--bd);border-radius:var(--r-card);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--tx-2);max-width:600px;}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq details{border-bottom:1px solid var(--bd);}
.faq details:last-child{border-bottom:none;}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;font-size:16px;font-weight:600;color:var(--tx-1);min-height:56px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:#FAFCFF;}
.faq__icon{position:relative;width:18px;height:18px;flex:0 0 auto;}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .18s ease,opacity .18s ease;}
.faq__icon::before{top:8px;left:0;width:18px;height:2px;}
.faq__icon::after{left:8px;top:0;width:2px;height:18px;}
.faq details[open] .faq__icon::after{transform:scaleY(0);opacity:0;}
.faq__body{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--tx-2);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-footer);color:var(--tx-invert-2);padding:64px 0 0;margin-top:72px;}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer__brand .logo__mark{background:rgba(255,255,255,.12);}
.footer__brand span{color:#fff;font-size:17px;font-weight:700;}
.footer__desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px;}
.footer__title{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.footer__links li{margin-bottom:10px;}
.footer__links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer__links a:hover{color:#fff;}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}
.footer__bottom a{color:rgba(255,255,255,.6);}
.footer__bottom a:hover{color:#fff;}

/* ---------- 移动端吸底 ---------- */
.sticky-cta{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card--feature{grid-column:span 2;}
  .posts{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav{display:none;}
  .hamburger{display:flex;}
  .header__actions .btn{display:none;}
  .hero__grid{grid-template-columns:1fr;gap:36px;}
  .hero__media{order:-1;}
  .guard__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0;}
  .guard__item{border-left:none;padding:0 16px;}
  .section{padding:56px 0;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .header__inner{padding:0 16px;height:64px;}
  .hero{padding:36px 0 48px;}
  .hero__stats{gap:24px;}
  .grid-cards{grid-template-columns:1fr;}
  .card--feature{grid-column:span 1;}
  .card--feature .card__media{aspect-ratio:16/9;}
  .card--feature .card__title{font-size:18px;}
  .posts{grid-template-columns:1fr;}
  .cta-band{padding:28px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .sticky-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;background:rgba(255,255,255,.98);border-top:1px solid var(--bd);padding:10px 16px;gap:10px;box-shadow:0 -6px 20px -14px rgba(16,32,64,.5);}
  .sticky-cta .btn{flex:1 1 0;height:46px;}
  .site-footer{padding-bottom:76px;}
  .topbar__links{display:none;}
}
@media (max-width:520px){
  .hero__cta .btn{width:100%;}
  .section__head{flex-direction:column;align-items:flex-start;}
  .faq summary{padding:16px 18px;font-size:15px;}
  .faq__body{padding:0 18px 18px;}
  .review{flex:0 0 82%;}
}

/* roulang page: article */
:root{
  --c-primary:#1F5AA6;
  --c-primary-600:#18498A;
  --c-primary-100:#E7F0FB;
  --c-accent:#E8902A;
  --c-accent-100:#FDF1E0;
  --c-teal:#12A594;
  --c-danger:#D14343;
  --c-muted-badge:#8494A8;
  --bg-page:#F6F8FB;
  --bg-card:#FFFFFF;
  --bg-band:#EEF3FA;
  --bg-footer:#0F2039;
  --tx-1:#0F1B2D;
  --tx-2:#4A5A70;
  --tx-3:#8494A8;
  --bd:#E3EAF3;
  --bd-strong:#CFDCEB;
  --sh-1:0 1px 2px rgba(16,32,64,.04);
  --sh-2:0 8px 24px -12px rgba(16,32,64,.12);
  --sh-hover:0 14px 32px -14px rgba(16,32,64,.18);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:999px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--tx-1);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(31,90,166,.28);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--bg-footer);
  color:rgba(255,255,255,.78);
  font-size:13px;
  height:36px;
  display:flex;
  align-items:center;
}
.topbar__inner{display:flex;align-items:center;gap:14px;width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;overflow:hidden}
.topbar__dot{width:8px;height:8px;border-radius:50%;background:var(--c-teal);flex:0 0 auto;box-shadow:0 0 0 3px rgba(18,165,148,.18)}
.topbar__tag{color:#fff;font-weight:600;flex:0 0 auto}
.topbar__scroll{flex:1 1 auto;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:rgba(255,255,255,.72)}
.topbar__meta{flex:0 0 auto;color:rgba(255,255,255,.6)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--bd);
  transition:box-shadow .2s ease,height .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2)}
.header__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
  transition:min-height .2s ease;
}
.site-header.is-stuck .header__inner{min-height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--tx-1);flex:0 0 auto}
.logo__mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-600));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.logo__mark svg{width:19px;height:19px}
.logo__sub{display:block;font-size:11px;font-weight:500;color:var(--tx-3);line-height:1;letter-spacing:.06em;margin-top:2px}
.nav{margin-left:auto}
.nav__list{display:flex;align-items:center;gap:4px}
.nav__link{
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--tx-2);
  border-radius:var(--r-btn);
  position:relative;
  transition:color .18s ease,background .18s ease;
}
.nav__link:hover{color:var(--c-primary);background:var(--c-primary-100)}
.nav__link.is-active{color:var(--c-primary);font-weight:600}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header__cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.badge-live{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--c-accent);
  background:var(--c-accent-100);
  border:1px solid rgba(232,144,42,.28);
  border-radius:var(--r-badge);
  padding:4px 10px;
  white-space:nowrap;
}
.badge-live i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;font-style:normal}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-btn);
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:scale(.98)}
.btn--ghost{background:#fff;border:1px solid var(--bd-strong);color:var(--tx-1)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-100)}
.btn--outline{background:#fff;border:1px solid var(--c-primary);color:var(--c-primary)}
.btn--outline:hover{background:#EAF1FD}
.btn--block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed}

/* ---------- 汉堡 ---------- */
.burger{display:none;width:44px;height:44px;border:1px solid var(--bd);border-radius:var(--r-btn);align-items:center;justify-content:center;flex:0 0 auto;background:#fff}
.burger span{display:block;width:18px;height:2px;background:var(--tx-1);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--tx-1);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
  background:#fff;z-index:90;
  transform:translateX(102%);
  transition:transform .26s ease;
  padding:20px;display:flex;flex-direction:column;gap:18px;
  box-shadow:-16px 0 40px -24px rgba(16,32,64,.35);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer__close{width:40px;height:40px;border:1px solid var(--bd);border-radius:var(--r-btn);font-size:20px;line-height:1;color:var(--tx-2);background:#fff}
.drawer__links{display:flex;flex-direction:column;gap:4px}
.drawer__links a{padding:12px 12px;border-radius:var(--r-btn);font-size:15px;font-weight:500;color:var(--tx-2);border:1px solid transparent}
.drawer__links a:hover,.drawer__links a.is-active{color:var(--c-primary);background:var(--c-primary-100);border-color:#D6E5F7}
.mask{position:fixed;inset:0;background:rgba(15,32,57,.42);z-index:80;opacity:0;visibility:hidden;transition:opacity .24s ease}
.mask.is-open{opacity:1;visibility:visible}

/* ---------- 面包屑 ---------- */
.crumb{background:#fff;border-bottom:1px solid var(--bd)}
.crumb__inner{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);padding:14px 0;flex-wrap:wrap}
.crumb a{color:var(--tx-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb__sep{color:var(--bd-strong)}
.crumb__cur{color:var(--tx-1);font-weight:600;max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章布局 ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding:48px 0 72px;align-items:start}
.article-card{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:40px}
.article-head{border-bottom:1px solid var(--bd);padding-bottom:24px;margin-bottom:28px}
.article-head h1{font-size:clamp(26px,3.4vw,38px);line-height:1.28;font-weight:700;letter-spacing:-.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:18px;font-size:13px;color:var(--tx-3)}
.article-meta .chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-badge);
  background:var(--c-primary-100);color:var(--c-primary);
  font-weight:600;font-size:12px;
}
.article-meta .chip--accent{background:var(--c-accent-100);color:#B96C10}
.article-meta__item{display:inline-flex;align-items:center;gap:6px}
.article-meta__item svg{width:14px;height:14px;stroke:var(--tx-3);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 正文排版 ---------- */
.entry-content{font-size:17px;line-height:1.9;color:var(--tx-1);max-width:760px;margin:0 auto}
.entry-content>*+*{margin-top:18px}
.entry-content p{color:#22303F}
.entry-content h2{
  font-size:clamp(21px,2.4vw,26px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
  margin-top:44px;
  padding-left:14px;
  border-left:4px solid var(--c-primary);
}
.entry-content h3{font-size:19px;font-weight:600;margin-top:32px;position:relative;padding-left:18px}
.entry-content h3::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--c-accent)}
.entry-content h4{font-size:17px;font-weight:600;margin-top:24px;color:var(--c-primary-600)}
.entry-content a{color:var(--c-primary);border-bottom:1px solid rgba(31,90,166,.35)}
.entry-content a:hover{color:var(--c-primary-600);border-bottom-color:var(--c-primary-600)}
.entry-content strong{font-weight:700}
.entry-content ul,.entry-content ol{display:flex;flex-direction:column;gap:10px;padding-left:4px}
.entry-content ul li{position:relative;padding-left:20px;color:#22303F}
.entry-content ul li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--c-primary-100);border:1px solid var(--c-primary)}
.entry-content ol{list-style:none;counter-reset:olc}
.entry-content ol li{counter-increment:olc;position:relative;padding-left:30px;color:#22303F}
.entry-content ol li::before{
  content:counter(olc);
  position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-100);color:var(--c-primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.entry-content blockquote{
  background:var(--c-primary-100);
  border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-img) var(--r-img) 0;
  padding:16px 20px;
  color:var(--tx-2);
  font-size:16px;
}
.entry-content img{border-radius:var(--r-img);border:1px solid var(--bd)}
.entry-content figure{margin:24px 0}
.entry-content figcaption{font-size:13px;color:var(--tx-3);text-align:center;margin-top:10px}
.entry-content table{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--bd);border-radius:var(--r-img);overflow:hidden}
.entry-content th,.entry-content td{border:1px solid var(--bd);padding:10px 14px;text-align:left}
.entry-content thead th{background:var(--bg-band);font-weight:600}
.entry-content tbody tr:nth-child(even){background:#FAFCFF}
.entry-content code{background:#F1F4F8;border:1px solid var(--bd);border-radius:6px;padding:2px 6px;font-size:14px}
.entry-content pre{background:#F1F4F8;border:1px solid var(--bd);border-radius:var(--r-img);padding:16px;overflow-x:auto;font-size:14px;line-height:1.7}
.entry-content pre code{background:none;border:0;padding:0}
.entry-content hr{border:0;border-top:1px solid var(--bd);margin:32px 0}

/* ---------- 文章尾 ---------- */
.article-foot{margin-top:44px;padding-top:24px;border-top:1px solid var(--bd);max-width:760px;margin-left:auto;margin-right:auto}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tag{
  font-size:13px;color:var(--tx-2);
  background:var(--bg-band);
  border:1px solid var(--bd);
  border-radius:var(--r-badge);
  padding:5px 12px;
  transition:all .18s ease;
}
.tag:hover{color:var(--c-primary);border-color:rgba(31,90,166,.35);background:var(--c-primary-100)}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:14px;letter-spacing:-.01em}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list a{display:block;font-size:14px;font-weight:600;color:var(--tx-1);line-height:1.55}
.side-list a:hover{color:var(--c-primary)}
.side-list span{display:block;font-size:12px;color:var(--tx-3);font-weight:400;margin-top:4px}
.side-note{font-size:13px;color:var(--tx-2);line-height:1.8}
.side-facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:6px}
.side-facts div{background:var(--bg-band);border-radius:var(--r-img);padding:12px}
.side-facts b{display:block;font-size:19px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.side-facts small{color:var(--tx-3);font-size:12px}

/* ---------- 空态 ---------- */
.empty{
  background:#fff;border:1px dashed var(--bd-strong);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.empty__icon{
  width:64px;height:64px;border-radius:50%;background:var(--bg-band);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
}
.empty__icon svg{width:28px;height:28px;stroke:var(--c-primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty h2{font-size:20px;font-weight:700;margin-bottom:8px}
.empty p{color:var(--tx-2);font-size:15px;margin-bottom:20px}

/* ---------- 相关推荐 ---------- */
.related{background:var(--bg-band);padding:72px 0;border-top:1px solid var(--bd)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em}
.section-head p{color:var(--tx-2);font-size:15px;margin-top:8px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(31,90,166,.28)}
.card__media{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-100)}
.card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s ease}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__tag{align-self:flex-start;font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-primary-100);border-radius:var(--r-badge);padding:3px 10px}
.card__title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__desc{font-size:14px;line-height:1.7;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--tx-3);padding-top:6px;border-top:1px solid var(--bd)}
.card__more{display:inline-flex;align-items:center;gap:4px;color:var(--c-primary);font-weight:600;transition:gap .18s ease}
.card:hover .card__more{gap:8px}

/* ---------- CTA ---------- */
.cta-band{background:#fff;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);padding:64px 0}
.cta-band__inner{
  background:var(--bg-band);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:-.01em}
.cta-band p{color:var(--tx-2);font-size:15px;margin-top:10px;max-width:56ch}
.cta-band__btns{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq{padding:72px 0}
.faq__list{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq details{border-bottom:1px solid var(--bd)}
.faq details:last-child{border-bottom:0}
.faq summary{
  list-style:none;cursor:pointer;
  min-height:56px;padding:16px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--c-primary);line-height:1;
  transition:transform .18s ease;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq__ans{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--tx-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-footer);color:rgba(255,255,255,.72);padding:56px 0 28px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px}
.footer__desc{font-size:14px;line-height:1.8;margin-top:14px;max-width:34ch;color:rgba(255,255,255,.66)}
.footer__title{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer__links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer__links a{color:rgba(255,255,255,.72)}
.footer__links a:hover{color:#fff}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;font-size:13px;color:rgba(255,255,255,.56)}

/* ---------- 移动端吸底 ---------- */
.mobile-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--bd);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  gap:10px;
  box-shadow:0 -8px 24px -18px rgba(16,32,64,.4);
}
.mobile-bar .btn{flex:1;height:48px}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .article-wrap{grid-template-columns:minmax(0,1fr);gap:32px}
  .side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 300px}
}
@media (max-width:900px){
  .nav{display:none}
  .header__cta .btn--primary{display:none}
  .burger{display:inline-flex}
  .logo__sub{display:none}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .topbar__meta{display:none}
  .article-card{padding:24px 18px}
  .entry-content{font-size:16.5px;line-height:1.85}
  .entry-content h2{margin-top:34px}
  .related,.faq{padding:48px 0}
  .cta-band{padding:44px 0}
  .cta-band__inner{padding:24px 20px}
  .cta-band__btns .btn{width:100%}
  .site-footer{padding:40px 0 92px}
  .mobile-bar{display:flex}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .side{flex-direction:column}
}
@media (max-width:520px){
  .article-head h1{font-size:24px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .article-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F5AA6;
  --c-primary-600:#18498A;
  --c-primary-100:#E7F0FB;
  --c-accent:#E8902A;
  --c-accent-100:#FDF1E0;
  --c-teal:#12A594;
  --c-danger:#D14343;
  --c-muted-badge:#8494A8;
  --bg-page:#F6F8FB;
  --bg-card:#FFFFFF;
  --bg-band:#EEF3FA;
  --bg-footer:#0F2039;
  --tx-1:#0F1B2D;
  --tx-2:#4A5A70;
  --tx-3:#8494A8;
  --bd:#E3EAF3;
  --bd-strong:#CFDCEB;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,32,64,.04);
  --sh-2:0 8px 24px -12px rgba(16,32,64,.12);
  --sh-hover:0 14px 32px -14px rgba(16,32,64,.18);
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--tx-1);
  background:var(--bg-page);
}
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:inherit;color:inherit;background:none;border:0;cursor:pointer;}
svg{display:block;}
:focus-visible{outline:3px solid rgba(31,90,166,.28);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* 顶部信息条 */
.topbar{background:var(--bg-footer);color:rgba(255,255,255,.82);font-size:13px;line-height:36px;height:36px;overflow:hidden;}
.topbar__inner{display:flex;align-items:center;gap:16px;}
.topbar__dot{width:8px;height:8px;border-radius:50%;background:var(--c-teal);box-shadow:0 0 0 3px rgba(18,165,148,.22);flex:none;}
.topbar__tag{flex:none;color:#fff;font-weight:600;}
.topbar__scroll{display:flex;gap:28px;white-space:nowrap;overflow-x:auto;scrollbar-width:none;}
.topbar__scroll::-webkit-scrollbar{display:none;}
.topbar__scroll span{opacity:.86;}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(2px);border-bottom:1px solid var(--bd);transition:box-shadow var(--ease);}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header__inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--ease);}
.site-header.is-scrolled .header__inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;flex:none;}
.logo__mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(150deg,var(--c-primary),#2E74C6);display:grid;place-items:center;flex:none;}
.logo__mark svg{width:19px;height:19px;}
.nav{margin-left:auto;}
.nav__list{display:flex;align-items:center;gap:26px;}
.nav__link{position:relative;font-size:15px;font-weight:500;color:var(--tx-2);padding:6px 0;transition:color var(--ease);}
.nav__link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);}
.nav__link:hover{color:var(--c-primary);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--c-primary);font-weight:600;}
.nav__link.is-active::after{transform:scaleX(1);}
.header__actions{display:flex;align-items:center;gap:12px;flex:none;}
.header__cta{display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:var(--r-btn);background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;transition:background var(--ease),transform var(--ease),box-shadow var(--ease);}
.header__cta:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2);}
.header__cta:active{transform:scale(.98);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--bd-strong);align-items:center;justify-content:center;background:#fff;}
.nav-toggle svg{width:20px;height:20px;stroke:var(--tx-1);}
.nav-toggle:hover{background:var(--c-primary-100);border-color:rgba(31,90,166,.35);}

.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none;}
.drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer__mask{position:absolute;inset:0;background:rgba(15,32,57,.42);opacity:0;transition:opacity var(--ease);}
.drawer.is-open .drawer__mask{opacity:1;}
.drawer__panel{position:absolute;top:0;right:0;bottom:0;width:78%;max-width:320px;background:#fff;padding:22px;transform:translateX(100%);transition:transform 260ms ease;display:flex;flex-direction:column;gap:8px;box-shadow:var(--sh-hover);}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--bd);font-weight:700;}
.drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid var(--bd);display:grid;place-items:center;}
.drawer__close svg{width:18px;height:18px;stroke:var(--tx-2);}
.drawer__list{margin-top:8px;display:flex;flex-direction:column;}
.drawer__link{padding:13px 4px;font-size:16px;font-weight:500;color:var(--tx-2);border-bottom:1px solid var(--bd);display:flex;align-items:center;justify-content:space-between;}
.drawer__link.is-active{color:var(--c-primary);font-weight:600;}
.drawer__cta{margin-top:18px;display:flex;align-items:center;justify-content:center;height:48px;border-radius:var(--r-btn);background:var(--c-primary);color:#fff;font-weight:600;}

/* 面包屑 */
.crumb{background:#fff;border-bottom:1px solid var(--bd);}
.crumb__list{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);padding:14px 0;flex-wrap:wrap;}
.crumb__list a{color:var(--tx-2);}
.crumb__list a:hover{color:var(--c-primary);}
.crumb__sep{color:var(--bd-strong);}
.crumb__current{color:var(--tx-1);font-weight:600;}

/* Hero */
.hero{background:linear-gradient(180deg,#FFFFFF 0%,var(--bg-page) 100%);padding:56px 0 64px;}
.hero__grid{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center;}
.hero__media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--bd);box-shadow:var(--sh-2);aspect-ratio:16/11;background:var(--c-primary-100);}
.hero__media img{width:100%;height:100%;object-fit:cover;}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,27,45,0) 55%,rgba(15,27,45,.28));}
.hero__badge{position:absolute;top:14px;left:14px;z-index:2;display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;background:rgba(255,255,255,.94);font-size:12px;font-weight:600;color:var(--c-primary);box-shadow:var(--sh-1);}
.hero__badge i{width:7px;height:7px;border-radius:50%;background:var(--c-teal);display:inline-block;}
.hero__caption{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;color:#fff;font-size:13px;letter-spacing:.02em;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:999px;background:var(--c-accent-100);color:#8A5312;font-size:12px;font-weight:600;letter-spacing:.04em;}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:-.01em;font-weight:700;margin:16px 0 14px;}
.hero__sub{font-size:17px;color:var(--tx-2);max-width:34em;}
.hero__points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.hero__points li{position:relative;padding-left:26px;font-size:15px;color:var(--tx-2);}
.hero__points li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:3px;background:var(--c-primary);}
.hero__btns{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:all var(--ease);border:1px solid transparent;}
.btn svg{width:16px;height:16px;}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:scale(.98);}
.btn--ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn--ghost:hover{background:#EAF1FD;}
.btn--plain{background:transparent;border-color:var(--bd-strong);color:var(--tx-2);}
.btn--plain:hover{border-color:var(--c-primary);color:var(--c-primary);}
.hero__stats{display:flex;gap:32px;margin-top:32px;padding-top:24px;border-top:1px solid var(--bd);flex-wrap:wrap;}
.stat__num{font-size:24px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat__label{font-size:13px;color:var(--tx-3);margin-top:2px;}

/* 通用板块 */
.section{padding:72px 0;}
.section--band{background:var(--bg-band);}
.section__head{max-width:760px;margin-bottom:36px;}
.section__head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;letter-spacing:-.01em;}
.section__head p{margin-top:12px;color:var(--tx-2);font-size:15.5px;}
.tagline{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-accent);margin-bottom:12px;}

/* 覆盖项目两栏对照 */
.cover{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start;}
.cover__list{display:flex;flex-direction:column;border:1px solid var(--bd);border-radius:var(--r-card);background:#fff;box-shadow:var(--sh-1);overflow:hidden;}
.cover__row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-bottom:1px solid var(--bd);}
.cover__row:last-child{border-bottom:0;}
.cover__row:hover{background:#FAFCFF;}
.cover__row strong{font-size:15.5px;font-weight:600;}
.cover__row span{font-size:13px;color:var(--tx-3);}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--c-primary-100);color:var(--c-primary);}
.badge--accent{background:var(--c-accent-100);color:#8A5312;}
.badge--teal{background:rgba(18,165,148,.12);color:#0B7A6D;}
.badge--muted{background:#EEF1F6;color:var(--c-muted-badge);}
.cover__note{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);}
.cover__note h3{font-size:19px;margin-bottom:14px;}
.cover__note p{color:var(--tx-2);font-size:15px;}
.cover__steps{counter-reset:step;margin-top:18px;display:flex;flex-direction:column;gap:14px;}
.cover__steps li{counter-increment:step;position:relative;padding-left:42px;font-size:15px;color:var(--tx-2);}
.cover__steps li::before{content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:9px;background:var(--c-primary-100);color:var(--c-primary);font-size:13px;font-weight:700;display:grid;place-items:center;font-variant-numeric:tabular-nums;}
.cover__steps li b{color:var(--tx-1);font-weight:600;}

/* 三栏信息卡 */
.info-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px;}
.info-card{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
.info-card:hover{transform:translateY(-2px);border-color:rgba(31,90,166,.28);box-shadow:var(--sh-hover);}
.info-card__icon{width:40px;height:40px;border-radius:12px;background:var(--c-primary-100);display:grid;place-items:center;margin-bottom:16px;}
.info-card__icon svg{width:20px;height:20px;stroke:var(--c-primary);}
.info-card h3{font-size:18px;margin-bottom:10px;}
.info-card p{font-size:14.5px;color:var(--tx-2);}
.info-card__meta{margin-top:16px;padding-top:14px;border-top:1px dashed var(--bd);font-size:13px;color:var(--tx-3);}

/* 内容图文块 */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;}
.split__media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--bd);box-shadow:var(--sh-1);aspect-ratio:16/10;background:var(--c-primary-100);}
.split__media img{width:100%;height:100%;object-fit:cover;}
.split h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:14px;}
.split p{color:var(--tx-2);font-size:15.5px;}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.check-list li{position:relative;padding-left:32px;font-size:15px;color:var(--tx-2);}
.check-list li::before{content:"";position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:50%;background:var(--c-primary-100);}
.check-list li::after{content:"";position:absolute;left:6px;top:7px;width:8px;height:4px;border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(-45deg);}

/* FAQ */
.faq{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq__item{border-bottom:1px solid var(--bd);}
.faq__item:last-child{border-bottom:0;}
.faq__item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:16px 22px;font-size:16px;font-weight:600;transition:background var(--ease);}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary:hover{background:#FAFCFF;}
.faq__icon{position:relative;width:18px;height:18px;flex:none;}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform 180ms ease,opacity 180ms ease;}
.faq__icon::before{left:0;top:8px;width:18px;height:2px;}
.faq__icon::after{left:8px;top:0;width:2px;height:18px;}
.faq__item[open] .faq__icon::after{transform:rotate(90deg);opacity:0;}
.faq__body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--tx-2);}

/* CTA */
.cta{margin:0 0 -1px;}
.cta__box{background:linear-gradient(140deg,#FFFFFF 0%,var(--c-primary-100) 100%);border:1px solid var(--bd);border-radius:20px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-1);}
.cta__box h2{font-size:clamp(20px,2.4vw,28px);line-height:1.35;margin-bottom:10px;}
.cta__box p{color:var(--tx-2);font-size:15px;max-width:36em;}
.cta__btns{display:flex;gap:12px;flex:none;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--bg-footer);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:72px;}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px;}
.footer__desc{font-size:14px;line-height:1.8;max-width:30em;}
.footer__title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer__links{display:flex;flex-direction:column;gap:11px;font-size:14px;}
.footer__links a{color:rgba(255,255,255,.72);transition:color var(--ease);}
.footer__links a:hover{color:#fff;}
.footer__bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;flex-wrap:wrap;}

/* 移动吸底 */
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(255,255,255,.97);border-top:1px solid var(--bd);padding:10px 16px;gap:10px;box-shadow:0 -6px 18px -12px rgba(16,32,64,.28);}
.mobile-bar .btn{flex:1;height:48px;}

@media (max-width:1024px){
  .hero__grid{grid-template-columns:1fr;gap:32px;}
  .hero__media{order:-1;aspect-ratio:16/9;}
  .cover{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .cta__box{flex-direction:column;align-items:flex-start;}
  .footer__grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav,.header__actions .header__cta{display:none;}
  .nav-toggle{display:flex;}
  .header__actions{margin-left:auto;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .hero{padding:36px 0 44px;}
  .info-cards{grid-template-columns:1fr 1fr;gap:16px;}
  .mobile-bar{display:flex;}
  body{padding-bottom:76px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:48px 0 24px;margin-top:56px;}
  .cta__box{padding:28px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .info-cards{grid-template-columns:1fr;}
  .hero__stats{gap:20px;}
  .stat__num{font-size:21px;}
  .btn{width:100%;}
  .hero__btns{flex-direction:column;}
  .cover__row{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#1F5AA6;
  --c-primary-600:#18498A;
  --c-primary-100:#E7F0FB;
  --c-accent:#E8902A;
  --c-accent-100:#FDF1E0;
  --c-teal:#12A594;
  --c-danger:#D14343;
  --c-muted-badge:#8494A8;
  --bg-page:#F6F8FB;
  --bg-card:#FFFFFF;
  --bg-band:#EEF3FA;
  --bg-footer:#0F2039;
  --tx-1:#0F1B2D;
  --tx-2:#4A5A70;
  --tx-3:#8494A8;
  --tx-invert:#FFFFFF;
  --tx-invert-2:rgba(255,255,255,.72);
  --bd:#E3EAF3;
  --bd-strong:#CFDCEB;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:999px;
  --sh-1:0 1px 2px rgba(16,32,64,.04);
  --sh-2:0 8px 24px -12px rgba(16,32,64,.12);
  --sh-hover:0 14px 32px -14px rgba(16,32,64,.18);
  --container:1200px;
  --ease:200ms ease;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--tx-1);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{letter-spacing:-.01em;font-weight:700;}
:focus-visible{outline:3px solid rgba(31,90,166,.28);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

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

/* ===== 顶部信息条 ===== */
.topbar{
  background:var(--bg-band);
  border-bottom:1px solid var(--bd);
  font-size:13px;
  color:var(--tx-2);
}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:38px;
  overflow:hidden;
}
.topbar__status{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  color:var(--tx-1);
  flex:0 0 auto;
}
.topbar__status .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--c-teal);
  box-shadow:0 0 0 3px rgba(18,165,148,.16);
}
.topbar__tag{
  flex:0 0 auto;
  padding:2px 10px;
  border-radius:var(--r-badge);
  background:var(--c-accent-100);
  color:#9A5A12;
  font-size:12px;
  font-weight:600;
}
.topbar__ticker{
  flex:1 1 auto;
  min-width:0;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  color:var(--tx-3);
}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--bd);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header__inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
  transition:height var(--ease);
}
.site-header.is-scrolled .header__inner{height:60px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  font-weight:700;
  font-size:17px;
  color:var(--tx-1);
}
.logo__mark{
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-600));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.logo__mark svg{width:20px;height:20px;}
.nav{flex:1 1 auto;}
.nav__list{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav__link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--tx-2);
  transition:color var(--ease);
}
.nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav__link:hover{color:var(--c-primary);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--c-primary);font-weight:600;}
.nav__link.is-active::after{transform:scaleX(1);}
.header__actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.hamburger{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-btn);
  border:1px solid var(--bd-strong);
  align-items:center;
  justify-content:center;
}
.hamburger span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--tx-1);
  position:relative;
}
.hamburger span::before,
.hamburger span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;border-radius:2px;
  background:var(--tx-1);
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* 抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;
  z-index:90;
  width:280px;
  max-width:84vw;
  height:100%;
  background:#fff;
  border-left:1px solid var(--bd);
  padding:24px 20px;
  transform:translateX(100%);
  transition:transform 240ms ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
}
.drawer__title{font-weight:700;font-size:16px;}
.drawer__close{
  width:36px;height:36px;border-radius:var(--r-btn);
  border:1px solid var(--bd-strong);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;color:var(--tx-2);
}
.drawer__list{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer__link{
  display:block;
  padding:12px 10px;
  border-radius:var(--r-btn);
  font-size:15px;
  color:var(--tx-2);
}
.drawer__link:hover{background:var(--c-primary-100);color:var(--c-primary);}
.drawer__link.is-active{background:var(--c-primary-100);color:var(--c-primary);font-weight:600;}
.overlay{
  position:fixed;inset:0;
  z-index:80;
  background:rgba(15,27,45,.42);
  opacity:0;visibility:hidden;
  transition:opacity 240ms ease,visibility 240ms ease;
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:scale(.98);}
.btn--ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn--ghost:hover{background:#EAF1FD;transform:translateY(-1px);}
.btn--ghost:active{transform:scale(.98);}
.btn--outline{background:transparent;border-color:var(--bd-strong);color:var(--tx-2);}
.btn--outline:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===== 面包屑 ===== */
.breadcrumb{
  padding:20px 0 0;
  font-size:13px;
  color:var(--tx-3);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--bd-strong);}
.breadcrumb a{color:var(--tx-2);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb [aria-current="page"]{color:var(--tx-1);font-weight:600;}

/* ===== 页头 ===== */
.page-hero{padding:32px 0 0;}
.page-hero__head{max-width:840px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:600;
  background:var(--c-primary-100);
  color:var(--c-primary-600);
}
.badge--accent{background:var(--c-accent-100);color:#9A5A12;}
.badge--teal{background:rgba(18,165,148,.12);color:#0B7C70;}
.page-hero h1{
  margin:14px 0 12px;
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;
}
.page-hero__sub{
  font-size:17px;
  color:var(--tx-2);
  max-width:680px;
}
.page-hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  margin-top:18px;
  font-size:14px;
  color:var(--tx-3);
}
.page-hero__meta b{color:var(--tx-1);font-weight:700;}
.page-hero__band{
  margin-top:32px;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--bd);
  box-shadow:var(--sh-1);
  aspect-ratio:21/8;
  position:relative;
  background:var(--c-primary-100);
}
.page-hero__band img{
  width:100%;height:100%;
  object-fit:cover;
}
.page-hero__band::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,27,45,.06),rgba(15,27,45,.44));
}
.page-hero__caption{
  position:absolute;
  left:28px;bottom:24px;
  z-index:2;
  color:#fff;
  max-width:560px;
}
.page-hero__caption strong{
  display:block;
  font-size:clamp(18px,2vw,22px);
  font-weight:700;
  margin-bottom:6px;
}
.page-hero__caption span{
  font-size:14px;
  color:rgba(255,255,255,.86);
  line-height:1.6;
}

/* ===== 板块 ===== */
.section{padding:72px 0;}
.section--tight{padding:56px 0;}
.section--band{background:var(--bg-band);}
.section__head{
  max-width:720px;
  margin-bottom:36px;
}
.section__head h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.3;
  margin-bottom:12px;
}
.section__head p{
  color:var(--tx-2);
  font-size:15px;
}
.eyebrow{
  display:inline-block;
  margin-bottom:10px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  letter-spacing:.04em;
}

/* ===== 卡片栅格（2 列） ===== */
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.card{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;
  flex-direction:column;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-hover);
  border-color:rgba(31,90,166,.28);
}
.card__media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-primary-100);
}
.card__media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 320ms ease;
}
.card:hover .card__media img{transform:scale(1.03);}
.card__body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.card__body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.4;
}
.card__body p{
  font-size:14.5px;
  color:var(--tx-2);
  line-height:1.75;
}
.card__tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:auto;
  padding-top:6px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:var(--r-badge);
  background:var(--bg-band);
  border:1px solid var(--bd);
  font-size:12px;
  color:var(--tx-2);
}
.tag--accent{background:var(--c-accent-100);border-color:#F5DDBD;color:#9A5A12;}
.tag--teal{background:rgba(18,165,148,.1);border-color:rgba(18,165,148,.24);color:#0B7C70;}

/* ===== 两栏对照清单 ===== */
.compare{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.compare__col{padding:28px 28px 30px;}
.compare__col+.compare__col{border-left:1px solid var(--bd);}
.compare__col h3{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:600;
  margin-bottom:18px;
}
.compare__col h3 svg{width:20px;height:20px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.compare__list{display:flex;flex-direction:column;}
.compare__row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px dashed var(--bd);
  font-size:14.5px;
}
.compare__row:last-child{border-bottom:0;padding-bottom:0;}
.compare__key{color:var(--tx-3);flex:0 0 auto;}
.compare__val{
  color:var(--tx-1);
  font-weight:600;
  text-align:right;
  font-variant-numeric:tabular-nums;
}

/* ===== 步骤条 ===== */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  position:relative;
}
.step{
  position:relative;
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  padding:26px 24px 24px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(31,90,166,.28);}
.step__no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:50%;
  background:var(--c-primary-100);
  color:var(--c-primary-600);
  font-weight:700;
  font-size:15px;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--tx-2);}

/* ===== 图文区块 ===== */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.split__text h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.3;
  margin-bottom:14px;
}
.split__text>p{color:var(--tx-2);font-size:15.5px;margin-bottom:20px;}
.checklist{display:flex;flex-direction:column;gap:14px;}
.checklist li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--tx-2);
}
.checklist li svg{
  flex:0 0 auto;
  width:20px;height:20px;
  margin-top:3px;
  stroke:var(--c-teal);
  fill:none;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.checklist li b{color:var(--tx-1);font-weight:600;}
.split__media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--bd);
  box-shadow:var(--sh-2);
  aspect-ratio:4/3;
  background:var(--c-primary-100);
}
.split__media img{width:100%;height:100%;object-fit:cover;}

/* ===== 数据条 ===== */
.stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.stat{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
}
.stat strong{
  display:block;
  font-size:28px;
  font-weight:700;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat span{
  display:block;
  margin-top:6px;
  font-size:14px;
  color:var(--tx-2);
}

/* ===== FAQ ===== */
.faq{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq__item{border-bottom:1px solid var(--bd);}
.faq__item:last-child{border-bottom:0;}
.faq__item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:16px 22px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  transition:color var(--ease),background var(--ease);
}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary:hover{color:var(--c-primary);background:#FAFCFF;}
.faq__icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  border-radius:50%;
  background:var(--c-primary-100);
  transition:transform 180ms ease,background 180ms ease;
}
.faq__icon::before,
.faq__icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--c-primary-600);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__icon::before{width:10px;height:1.6px;}
.faq__icon::after{width:1.6px;height:10px;transition:opacity 180ms ease;}
.faq__item[open] .faq__icon{background:var(--c-accent-100);transform:rotate(180deg);}
.faq__item[open] .faq__icon::before{background:#9A5A12;}
.faq__item[open] .faq__icon::after{opacity:0;}
.faq__body{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--tx-2);
  line-height:1.85;
}
.faq__body p+p{margin-top:10px;}

/* ===== CTA ===== */
.cta{
  background:var(--bg-card);
  border:1px solid var(--bd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:36px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta__text h2{
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.35;
  margin-bottom:10px;
}
.cta__text p{color:var(--tx-2);font-size:15px;}
.cta__actions{display:flex;gap:12px;flex:0 0 auto;}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg-footer);
  color:var(--tx-invert);
  padding:64px 0 28px;
  margin-top:72px;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer__brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  margin-bottom:14px;
}
.footer__brand .logo__mark{background:linear-gradient(135deg,#2C6FBF,#1B4E92);}
.footer__desc{
  font-size:14px;
  color:var(--tx-invert-2);
  line-height:1.8;
  max-width:360px;
}
.footer__title{
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer__links{display:flex;flex-direction:column;gap:10px;}
.footer__links a{
  font-size:14px;
  color:var(--tx-invert-2);
  transition:color var(--ease);
}
.footer__links a:hover{color:#fff;}
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(255,255,255,.56);
}

/* ===== 移动端吸底 ===== */
.sticky-cta{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--bd);
  box-shadow:0 -6px 18px -10px rgba(16,32,64,.24);
  padding:10px 16px;
  gap:10px;
}
.sticky-cta .btn{flex:1 1 0;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav__list{gap:20px;}
  .split{gap:32px;}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav{display:none;}
  .hamburger{display:flex;}
  .header__actions .btn--primary{display:none;}
  .section{padding:56px 0;}
  .page-hero__band{aspect-ratio:16/9;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer__desc{max-width:none;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .grid-2{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .compare__col+.compare__col{border-left:0;border-top:1px solid var(--bd);}
  .steps{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;}
  .split__media{order:-1;}
  .stats{grid-template-columns:1fr;gap:14px;}
  .cta{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta__actions{width:100%;}
  .cta__actions .btn{flex:1 1 0;}
  .page-hero__caption{left:18px;bottom:16px;right:18px;}
  .sticky-cta{display:flex;}
  .site-footer{padding-bottom:88px;}
  .topbar__ticker{display:none;}
}
@media (max-width:520px){
  .logo{font-size:15.5px;}
  .logo__mark{width:30px;height:30px;}
  .page-hero h1{font-size:26px;}
  .section{padding:44px 0;}
  .card__body{padding:18px;}
  .faq__item summary{padding:14px 16px;font-size:15px;}
  .faq__body{padding:0 16px 18px;}
  .footer__grid{grid-template-columns:1fr;gap:24px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
  .compare__row{flex-direction:column;gap:4px;}
  .compare__val{text-align:left;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1F5AA6;
  --c-primary-600:#18498A;
  --c-primary-100:#E7F0FB;
  --c-accent:#E8902A;
  --c-accent-100:#FDF1E0;
  --c-teal:#12A594;
  --c-danger:#D14343;
  --c-muted-badge:#8494A8;
  --bg-page:#F6F8FB;
  --bg-card:#FFFFFF;
  --bg-band:#EEF3FA;
  --bg-footer:#0F2039;
  --tx-1:#0F1B2D;
  --tx-2:#4A5A70;
  --tx-3:#8494A8;
  --bd:#E3EAF3;
  --bd-strong:#CFDCEB;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,32,64,.04);
  --sh-2:0 8px 24px -12px rgba(16,32,64,.12);
  --sh-hover:0 14px 32px -14px rgba(16,32,64,.18);
  --maxw:1200px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",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);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--tx-1);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
h3{font-size:18px;line-height:1.4;font-weight:600}
:focus-visible{outline:3px solid rgba(31,90,166,.28);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-footer);color:rgba(255,255,255,.78);font-size:12.5px;height:36px;overflow:hidden}
.topbar .container{display:flex;align-items:center;gap:16px;height:36px}
.topbar__live{display:inline-flex;align-items:center;gap:8px;flex:none;color:#fff;font-weight:500}
.dot{width:7px;height:7px;border-radius:50%;background:var(--c-teal);box-shadow:0 0 0 4px rgba(18,165,148,.18);display:inline-block}
.topbar__marquee{flex:1;min-width:0;overflow:hidden;position:relative;height:36px;display:flex;align-items:center}
.topbar__track{display:inline-flex;gap:56px;white-space:nowrap;animation:marquee 34s linear infinite}
.topbar__track span{opacity:.82}
.topbar__marquee:hover .topbar__track{animation-play-state:paused}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--bd);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2)}
.header__inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s ease}
.site-header.is-stuck .header__inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--tx-1)}
.logo__mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);display:grid;place-items:center;flex:none}
.logo__mark svg{width:19px;height:19px;display:block}
.nav{margin-left:auto}
.nav__list{display:flex;align-items:center;gap:28px}
.nav__link{position:relative;display:inline-block;padding:8px 0;font-size:15px;font-weight:500;color:var(--tx-2);transition:color .2s ease}
.nav__link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav__link:hover{color:var(--c-primary-600)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--c-primary)}
.header__cta{flex:none}
.burger{
  display:none;flex:none;width:42px;height:42px;border:1px solid var(--bd);border-radius:10px;background:#fff;
  cursor:pointer;padding:0;place-items:center;transition:border-color .2s ease,background .2s ease;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--tx-1);margin:3px auto;transition:background .2s ease}
.burger:hover{border-color:var(--c-primary);background:var(--c-primary-100)}
.burger:hover span{background:var(--c-primary-600)}

/* 抽屉导航 */
.drawer__mask{position:fixed;inset:0;background:rgba(15,27,45,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80}
.drawer__mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .26s ease;padding:20px 22px 28px;overflow-y:auto;
  display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--bd)}
.drawer__title{font-size:15px;font-weight:600;color:var(--tx-2)}
.drawer__close{width:36px;height:36px;border:1px solid var(--bd);border-radius:10px;background:#fff;cursor:pointer;display:grid;place-items:center;transition:border-color .2s ease,background .2s ease}
.drawer__close:hover{border-color:var(--c-primary);background:var(--c-primary-100)}
.drawer__list{display:grid;gap:4px;margin-top:12px}
.drawer__list a{display:block;padding:12px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--tx-2);transition:background .2s ease,color .2s ease}
.drawer__list a:hover{background:var(--c-primary-100);color:var(--c-primary-600)}
.drawer__list a.is-active{background:var(--c-primary-100);color:var(--c-primary);font-weight:600}
.drawer__cta{margin-top:18px;width:100%}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:scale(.98)}
.btn--outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn--outline:hover{background:#EAF1FD;transform:translateY(-1px)}
.btn--outline:active{transform:scale(.98)}
.btn--ghost{background:#fff;border-color:var(--bd-strong);color:var(--tx-1)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary-600)}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--c-primary-600);
  background:var(--c-primary-100);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--tx-2);background:#fff;border:1px solid var(--bd-strong);border-radius:999px;padding:6px 14px}
.chip--accent{background:var(--c-accent-100);border-color:#F3D9B4;color:#9A5A0C}

/* ---------- 面包屑 ---------- */
.crumb{background:#fff;border-bottom:1px solid var(--bd)}
.crumb__list{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13.5px;color:var(--tx-3);padding:14px 0}
.crumb__list a{color:var(--tx-2);transition:color .2s ease}
.crumb__list a:hover{color:var(--c-primary)}
.crumb__sep{color:var(--bd-strong)}
.crumb__current{color:var(--tx-1);font-weight:600}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  border-bottom:1px solid var(--bd);
  background-color:var(--bg-page);
  background-image:
    linear-gradient(96deg,rgba(255,255,255,.975) 0%,rgba(255,255,255,.94) 40%,rgba(246,248,251,.78) 68%,rgba(246,248,251,.58) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.page-hero__inner{padding:56px 24px 0;max-width:900px}
.page-hero__sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--tx-2);max-width:640px}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.page-hero__facts{display:flex;flex-wrap:wrap;gap:56px;border-top:1px solid var(--bd-strong);margin-top:44px;padding:22px 0 26px}
.fact__num{font-size:26px;font-weight:700;line-height:1.2;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.fact__label{font-size:13px;color:var(--tx-2);margin-top:4px}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section--band{background:var(--bg-band);border-top:1px solid var(--bd);border-bottom:1px solid var(--bd)}
.section__head{max-width:720px;margin-bottom:40px}
.section__sub{margin-top:14px;font-size:16px;color:var(--tx-2)}

/* ---------- 步骤时间轴 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);
  padding:26px 22px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(31,90,166,.28)}
.step::after{
  content:"";position:absolute;top:44px;right:-20px;width:20px;height:2px;background:var(--bd-strong);
}
.step:last-child::after{display:none}
.step__num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;
  background:var(--c-primary-100);color:var(--c-primary);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.step h3{margin-top:16px}
.step p{margin-top:10px;font-size:14.5px;line-height:1.78;color:var(--tx-2)}
.step__tag{display:inline-block;margin-top:16px;font-size:12px;font-weight:600;color:#9A5A0C;background:var(--c-accent-100);border-radius:999px;padding:3px 10px}

/* ---------- 双栏问答 ---------- */
.qa{
  background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.qa__row{
  display:grid;grid-template-columns:340px 1fr;
  border-bottom:1px solid var(--bd);
  transition:background .2s ease;
}
.qa__row:last-child{border-bottom:0}
.qa__row:hover{background:#FAFCFF}
.qa__q{
  padding:22px 26px;font-size:15.5px;font-weight:600;color:var(--tx-1);
  background:var(--bg-band);border-right:1px solid var(--bd);line-height:1.7;
}
.qa__a{padding:22px 26px;font-size:15px;line-height:1.85;color:var(--tx-2)}

/* ---------- 安全板块 ---------- */
.safe{display:grid;grid-template-columns:1fr 1.05fr;gap:52px;align-items:center}
.safe__media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--bd);box-shadow:var(--sh-2);background:var(--c-primary-100)}
.safe__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card)}
.safe__body p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--tx-2)}
.checklist{margin-top:24px;display:grid;gap:14px}
.checklist li{position:relative;padding-left:34px;font-size:15px;line-height:1.8;color:var(--tx-2)}
.checklist li strong{color:var(--tx-1);font-weight:600}
.checklist li::before{content:"";position:absolute;left:0;top:4px;width:22px;height:22px;border-radius:7px;background:var(--c-primary-100);border:1px solid #D3E3F7}
.checklist li::after{content:"";position:absolute;left:7px;top:10px;width:9px;height:5px;border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(-45deg)}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);max-width:960px}
.faq__item{border-bottom:1px solid var(--bd)}
.faq__item:last-child{border-bottom:0}
.faq__item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 24px;font-size:16px;font-weight:600;color:var(--tx-1);transition:background .2s ease,color .2s ease;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{background:var(--c-primary-100);color:var(--c-primary-600)}
.faq__icon{position:relative;width:18px;height:18px;flex:none}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .18s ease}
.faq__icon::before{left:0;top:8px;width:18px;height:2px}
.faq__icon::after{left:8px;top:0;width:2px;height:18px}
.faq__item[open] .faq__icon::after{transform:scaleY(0)}
.faq__body{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--tx-2)}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--bg-band);border:1px solid var(--bd);border-radius:20px;
  padding:52px 40px;text-align:center;max-width:920px;margin:0 auto;
}
.cta-block h2{max-width:640px;margin:0 auto}
.cta-block p{margin:16px auto 0;max-width:600px;font-size:16px;color:var(--tx-2)}
.cta-block__actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-footer);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:8px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;letter-spacing:-.01em}
.site-footer .logo__mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18)}
.footer__desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:360px}
.footer__title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer__links{display:grid;gap:10px}
.footer__links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer__links a:hover{color:#fff}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 移动端吸底 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;gap:10px;
  padding:10px 16px;background:#fff;border-top:1px solid var(--bd);
  box-shadow:0 -8px 24px -16px rgba(16,32,64,.35);
}
.mobile-bar .btn{flex:1}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav__list{gap:20px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .qa__row{grid-template-columns:280px 1fr}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .safe{gap:36px}
}
@media (max-width:900px){
  .nav,.header__cta{display:none}
  .burger{display:grid;margin-left:auto}
  .section{padding:56px 0}
  .page-hero__inner{padding:40px 24px 0}
  .page-hero__facts{gap:36px;margin-top:32px}
  .safe{grid-template-columns:1fr}
  .safe__media{order:-1}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .topbar__marquee{display:none}
  .topbar .container{justify-content:center}
  .page-hero{background-image:
    linear-gradient(180deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 58%,rgba(246,248,251,.72) 100%),
    url('/assets/images/backpic/back-2.webp');
    background-position:center bottom}
  .page-hero__sub{font-size:16px}
  .page-hero__actions .btn{flex:1 1 auto}
  .steps{grid-template-columns:1fr;gap:14px}
  .qa__row{grid-template-columns:1fr}
  .qa__q{border-right:0;border-bottom:1px solid var(--bd);padding:18px 20px;background:var(--bg-band)}
  .qa__a{padding:18px 20px}
  .faq__item summary{padding:16px 18px;font-size:15.5px}
  .faq__body{padding:0 18px 18px}
  .cta-block{padding:36px 22px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer__desc{max-width:none}
  .site-footer{padding:48px 0 96px}
  .mobile-bar{display:flex}
  .btn{height:46px}
}
@media (max-width:520px){
  .header__inner{height:64px;gap:14px}
  .logo{font-size:15.5px}
  .logo__mark{width:30px;height:30px;border-radius:9px}
  .page-hero__facts{gap:24px}
  .fact__num{font-size:22px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-block__actions .btn{width:100%}
}