/* roulang page: index */
/* ============ 1. 设计令牌 ============ */
:root{
  --bs-primary:#16509B;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-body-color:#475467;
  --bs-body-bg:#F7F9FC;
  --bs-border-radius:10px;
  --bs-link-color:#16509B;
  --bs-link-hover-color:#123F7A;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --c-primary:#16509B;
  --c-primary-dark:#123F7A;
  --c-primary-soft:#E8F0FB;
  --c-accent:#16A394;
  --c-accent-soft:#E4F6F3;
  --c-amber:#F5A524;
  --c-amber-soft:#FEF3E0;
  --c-danger:#DC2626;
  --c-warn:#D97706;
  --c-bg:#F7F9FC;
  --c-card:#FFFFFF;
  --c-alt:#F1F5FB;
  --c-title:#101828;
  --c-text:#475467;
  --c-muted:#667085;
  --c-border:#E4E7EC;
  --c-line:#EEF2F7;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,24,40,.05);
  --sh-md:0 8px 24px rgba(22,80,155,.08);
  --sh-lg:0 18px 44px rgba(22,80,155,.12);
}
/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-decoration-color:var(--c-primary-dark)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-title);line-height:1.35;font-weight:650}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,80,155,.18);border-radius:6px}
/* ============ 3. 布局 ============ */
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:88px 0}
.section-alt{background:var(--c-alt)}
.section-head{max-width:780px;margin-bottom:42px}
.section-head h2{font-size:30px;font-weight:700;position:relative;padding-left:14px}
.section-head h2::before{content:"";position:absolute;left:0;top:7px;width:4px;height:20px;border-radius:2px;background:var(--c-primary)}
.section-head p{margin:14px 0 0;color:var(--c-muted);font-size:15px;line-height:1.8}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.link-more{font-size:15px;font-weight:600;white-space:nowrap}
.link-more i{font-size:12px;margin-left:6px;transition:transform .22s ease;display:inline-block}
.link-more:hover i{transform:translateX(3px)}
/* ============ 4. 组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 22px;min-height:44px;
  transition:background-color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease,color .22s ease;
}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;box-shadow:var(--sh-md);transform:translateY(-1px);text-decoration:none}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-dark)}
.btn-ghost{background:#fff;border-color:var(--c-border);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:#F2F7FE;color:var(--c-primary-dark);transform:translateY(-1px);text-decoration:none;box-shadow:var(--sh-sm)}
.btn-pill{border-radius:var(--r-pill);padding:10px 20px;min-height:40px}
.btn-lg-cta{padding:15px 30px;font-size:16px;min-height:52px}
.btn-sm-tier{padding:7px 14px;min-height:34px;font-size:13px;border-radius:8px;width:100%;margin-top:10px}
.btn:disabled,.btn.disabled{opacity:.45;pointer-events:none}
.badge-soft{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:4px 12px;font-size:13px;font-weight:600;line-height:1.6;background:var(--c-primary-soft);color:var(--c-primary);white-space:nowrap}
.badge-accent{background:var(--c-accent-soft);color:#0F7C71}
.badge-neutral{background:#F2F4F7;color:var(--c-muted)}
.badge-rec{display:inline-block;background:var(--c-amber);color:#fff;border-radius:var(--r-pill);padding:3px 10px;font-size:12px;font-weight:700;line-height:1.6}
.card-surface{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease}
.card-surface:hover{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-2px)}
.mark-yes{color:var(--c-accent);font-size:16px}
.mark-no{color:#C7CDD6;font-size:16px}
.divider{height:1px;background:var(--c-line);border:0;margin:0}
/* ============ 5. 板块 ============ */
/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.nav-wrap{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{position:relative;width:34px;height:34px;border-radius:10px;background:linear-gradient(150deg,#16509B 0%,#123F7A 100%);box-shadow:var(--sh-sm);flex:0 0 auto}
.brand-mark::before{content:"";position:absolute;left:9px;right:9px;top:8px;bottom:6px;background:#fff;border-radius:5px 5px 9px 9px}
.brand-mark::after{content:"";position:absolute;left:15px;right:15px;top:14px;bottom:6px;background:var(--c-amber);border-radius:3px 3px 7px 7px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-title);letter-spacing:-.02em}
.brand-text small{font-size:12px;color:var(--c-muted);letter-spacing:0}
.main-nav{display:flex;align-items:center;gap:28px;margin:0 auto}
.main-nav .nav-link{padding:6px 0;font-size:15px;font-weight:600;color:var(--c-text);position:relative;text-decoration:none}
.main-nav .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.main-nav .nav-link:hover{color:var(--c-primary);text-decoration:none}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--c-primary)}
.main-nav .nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.link-quiet{font-size:15px;font-weight:600;color:var(--c-text)}
.link-quiet:hover{color:var(--c-primary);text-decoration:none}
.nav-toggle{width:44px;height:44px;border-radius:10px;border:1px solid var(--c-border);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:18px}
.mobile-nav{width:min(88vw,360px)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700;color:var(--c-title);letter-spacing:-.02em}
.mobile-nav .offcanvas-body{padding:12px 20px 24px;display:flex;flex-direction:column}
.m-link{display:flex;align-items:center;min-height:52px;font-size:16px;font-weight:600;color:var(--c-text);border-bottom:1px solid var(--c-line)}
.m-link:hover{color:var(--c-primary);text-decoration:none}
.m-link.active{color:var(--c-primary)}
.m-cta{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:10px}
/* Hero */
.hero{padding:66px 0 76px;background:linear-gradient(160deg,#F1F5FB 0%,#F7F9FC 64%)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-pill);background:#fff;border:1px solid #D7E3F6;color:var(--c-primary);font-size:13px;font-weight:600;padding:6px 14px;box-shadow:var(--sh-sm)}
.hero-title{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.25;margin:20px 0 0;letter-spacing:-.01em}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-text);margin:16px 0 0;max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:34px}
.stat{padding:0 26px;border-left:1px solid var(--c-border)}
.stat:first-child{border-left:0;padding-left:0}
.stat strong{display:block;font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.1}
.stat span{font-size:13px;color:var(--c-muted)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:20px;box-shadow:var(--sh-lg)}
.float-card{position:absolute;left:-16px;bottom:-20px;display:flex;gap:12px;align-items:flex-start;background:#fff;border-radius:14px;box-shadow:var(--sh-md);padding:15px 18px;max-width:264px}
.float-card .fc-icon{width:28px;height:28px;border-radius:50%;background:var(--c-accent-soft);color:var(--c-accent);display:flex;align-items:center;justify-content:center;flex:0 0 auto;font-size:13px;margin-top:2px}
.float-card strong{display:block;font-size:14px;color:var(--c-title);font-weight:700}
.float-card span{font-size:13px;color:var(--c-muted);line-height:1.7}
/* 权益对比 */
.compare-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);overflow:hidden}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;margin:0}
.compare-table th,.compare-table td{padding:16px 18px;border-bottom:1px solid var(--c-line);vertical-align:middle;text-align:center;font-size:15px}
.compare-table thead th{background:#FBFCFE;text-align:center;vertical-align:top;padding-top:20px;padding-bottom:20px}
.compare-table thead th.is-featured{background:var(--c-primary-soft);box-shadow:inset 0 3px 0 0 var(--c-primary)}
.compare-table .row-head{text-align:left;font-weight:600;color:var(--c-title);background:#fff;position:sticky;left:0;z-index:2;min-width:190px}
.compare-table thead .row-head{background:#FBFCFE}
.compare-table tbody tr:hover td{background:#FBFCFE}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
.tier{display:block;font-size:17px;font-weight:700;color:var(--c-title)}
.tier-note{display:block;font-size:13px;color:var(--c-muted);margin-top:2px}
.tier-badge{margin-top:8px;display:inline-block}
.compare-mobile .m-tier{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:20px;height:100%}
.compare-mobile .m-tier.is-featured{border-color:#D7E3F6;box-shadow:var(--sh-md)}
.m-tier-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:12px;border-bottom:1px solid var(--c-line)}
.m-tier-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.m-tier-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--c-text)}
/* 等级亮点 */
.tier-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:26px 24px;position:relative;height:100%;transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease}
.tier-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;border-radius:0 4px 4px 0;background:var(--c-primary)}
.tier-card.tone-accent::before{background:var(--c-accent)}
.tier-card.tone-amber::before{background:var(--c-amber)}
.tier-card:hover{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-2px)}
.tier-card.is-featured{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-8px)}
.tier-card.is-featured:hover{transform:translateY(-10px)}
.tier-card h3{font-size:20px;font-weight:700;margin-top:14px}
.tier-card .tier-pos{font-size:14px;color:var(--c-muted);margin-top:6px;min-height:44px}
.tier-points{margin:16px 0 0;display:flex;flex-direction:column;gap:10px}
.tier-points li{display:flex;gap:10px;font-size:14px;color:var(--c-text);line-height:1.7}
.tier-points i{color:var(--c-accent);font-size:13px;margin-top:5px}
.tier-card .link-more{display:inline-block;margin-top:18px}
/* 内容预览 */
.preview-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease}
.preview-card:hover{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-2px);text-decoration:none}
.preview-card .pc-media{position:relative;overflow:hidden}
.preview-card .pc-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.preview-card:hover .pc-media img{transform:scale(1.04)}
.pc-lock{position:absolute;right:12px;bottom:12px;display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--c-amber);color:var(--c-warn);border-radius:var(--r-pill);padding:3px 10px;font-size:12px;font-weight:600}
.pc-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.pc-body h3{font-size:16px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-body p{font-size:14px;color:var(--c-muted);line-height:1.75;margin:10px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.preview-card.is-wide .pc-media img{aspect-ratio:4/3;height:100%}
.preview-card.is-wide .pc-flex{display:flex;flex-direction:column;height:100%}
/* 最新信息 */
.post-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);overflow:hidden;transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;text-decoration:none;color:inherit}
.post-card:hover{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-2px);text-decoration:none;color:inherit}
.post-card .pc-media img{aspect-ratio:3/2}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:16px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14px;color:var(--c-muted);line-height:1.75;margin:10px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-time{margin-top:auto;padding-top:14px;font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px}
.empty-state{text-align:center;padding:52px 20px;background:#fff;border:1px dashed var(--c-border);border-radius:var(--r-card);color:var(--c-muted)}
.empty-state i{font-size:26px;color:#C7CDD6;display:block;margin-bottom:12px}
/* FAQ */
.faq-col{display:flex;flex-direction:column;gap:12px}
.accordion-item{border:0;background:transparent}
.accordion-button{background:#fff;border:1px solid var(--c-line);border-radius:12px !important;font-size:16px;font-weight:600;color:var(--c-title);padding:17px 20px;box-shadow:none;display:flex;align-items:center;gap:14px;line-height:1.6}
.accordion-button:not(.collapsed){color:var(--c-primary);border-left:3px solid var(--c-primary);box-shadow:var(--sh-sm)}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(22,80,155,.18);z-index:3}
.accordion-button::after{display:none}
.faq-icon{width:22px;height:22px;position:relative;flex:0 0 auto;margin-left:auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.faq-icon::before{left:4px;right:4px;top:10px;height:2px}
.faq-icon::after{top:4px;bottom:4px;left:10px;width:2px}
.accordion-button:not(.collapsed) .faq-icon::after{transform:scaleY(0);opacity:0}
.accordion-body{font-size:15px;line-height:1.8;color:var(--c-text);padding:14px 20px 18px;background:#fff;border-radius:0 0 12px 12px}
.accordion-body p{margin:0}
/* CTA */
.cta-band{background:linear-gradient(135deg,#E8F0FB 0%,#FFFFFF 100%);border:1px solid #D7E3F6;border-radius:20px;padding:46px 44px;box-shadow:var(--sh-sm)}
.cta-band h2{font-size:28px;font-weight:700}
.cta-band .cta-desc{font-size:15px;color:var(--c-text);margin-top:12px}
.cta-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--c-text)}
.cta-points i{color:var(--c-accent);font-size:13px;margin-top:6px}
.join-form{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm)}
.join-form label{display:block;font-size:14px;font-weight:600;color:var(--c-title);margin-bottom:8px}
.form-control{height:48px;border-radius:var(--r-input);border:1px solid var(--c-border);background:#fff;font-size:15px;padding:0 14px;color:var(--c-title);box-shadow:none}
.form-control::placeholder{color:#98A2B3}
.form-control:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,80,155,.18);background:#fff}
.form-hint{font-size:13px;color:var(--c-muted);margin:10px 0 16px;line-height:1.7}
.form-msg{font-size:13px;margin:10px 0 0;display:none}
.form-msg.is-error{color:var(--c-danger);display:block}
.form-msg.is-ok{color:var(--c-accent);display:block}
/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:60px 0 0;margin-top:88px}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-brand strong{font-size:17px;font-weight:700;color:var(--c-title);letter-spacing:-.02em}
.footer-desc{font-size:14px;color:var(--c-muted);line-height:1.85;margin-top:16px;max-width:320px}
.footer-title{font-size:15px;font-weight:700;color:var(--c-title);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-list a,.footer-list span{font-size:14px;color:var(--c-muted)}
.footer-list a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{margin-top:48px;border-top:1px solid var(--c-line);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.footer-bottom p{margin:0;font-size:13px;color:var(--c-muted)}
.footer-badge{display:inline-block;font-size:12px;color:var(--c-muted);border:1px solid var(--c-border);border-radius:var(--r-pill);padding:3px 12px}
/* ============ 6. 响应式 ============ */
@media (max-width:1199.98px){
  .compare-table .row-head{min-width:160px}
}
@media (max-width:991.98px){
  .container{padding-left:20px;padding-right:20px}
  .section{padding:64px 0}
  .site-footer{margin-top:64px}
  .hero{padding:48px 0 60px}
  .hero-visual{margin-top:36px}
  .float-card{position:static;margin-top:16px;max-width:none;box-shadow:var(--sh-sm);border:1px solid var(--c-line)}
  .tier-card.is-featured{transform:none}
  .tier-card.is-featured:hover{transform:translateY(-2px)}
  .cta-band{padding:32px 24px}
  .cta-band h2{font-size:24px}
}
@media (max-width:767.98px){
  .nav-wrap{height:60px}
  .section{padding:52px 0}
  .section-head{margin-bottom:30px}
  .section-head h2{font-size:24px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-stats{margin-top:26px}
  .stat{padding:0 16px}
  .stat strong{font-size:24px}
  .hero-cta .btn{flex:1 1 auto}
  .footer-desc{max-width:none}
}
@media (max-width:575.98px){
  .section{padding:48px 0}
  .container{padding-left:16px;padding-right:16px}
  .hero{padding:40px 0 48px}
  .hero-stats{width:100%}
  .stat{flex:1 1 33%;padding:0 10px}
  .stat span{font-size:12px}
  .cta-band{padding:26px 18px;border-radius:16px}
  .join-form{padding:18px}
  .float-card{padding:13px 14px}
}

/* roulang page: article */
:root{
  --brand:#16509B;
  --brand-dark:#123F7A;
  --brand-soft:#E8F0FB;
  --brand-soft-2:#F2F7FE;
  --teal:#16A394;
  --teal-soft:#E6F6F4;
  --amber:#F5A524;
  --amber-soft:#FFF5E4;
  --page:#F7F9FC;
  --card:#FFFFFF;
  --alt:#F1F5FB;
  --title:#101828;
  --text:#475467;
  --muted:#667085;
  --border:#E4E7EC;
  --line:#EEF2F7;
  --danger:#DC2626;
  --warn:#D97706;
  --r-card:16px;
  --r-btn:10px;
  --r-badge:999px;
  --sh-sm:0 1px 2px rgba(16,24,40,.05);
  --sh-md:0 8px 24px rgba(22,80,155,.08);
  --sh-lg:0 18px 44px rgba(22,80,155,.12);
  --bg:#F7F9FC;
  --bs-primary:#16509B;
  --bs-primary-rgb:22,80,155;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-color:#475467;
  --bs-body-bg:#F7F9FC;
  --bs-body-font-size:16px;
  --bs-border-radius:10px;
  --bs-border-color:#E4E7EC;
  --bs-link-color:#16509B;
  --bs-link-hover-color:#123F7A;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
}

/* ---------- 基础 reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color .2s ease;}
a:hover{color:var(--brand-dark);text-decoration:underline;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,80,155,.18);border-radius:8px;}

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

/* ---------- 按钮 ---------- */
.btn{font-weight:600;border-radius:var(--r-btn);transition:all .22s ease;border:1px solid transparent;font-size:15px;padding:.62rem 1.25rem;}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-dark);border-color:var(--brand-dark);box-shadow:var(--sh-md);transform:translateY(-1px);color:#fff;}
.btn-primary:disabled,.btn-primary.disabled{opacity:.45;}
.btn-outline-brand{background:#fff;border-color:var(--border);color:var(--brand);}
.btn-outline-brand:hover{border-color:var(--brand);background:var(--brand-soft-2);color:var(--brand-dark);transform:translateY(-1px);text-decoration:none;}
.btn-pill{border-radius:var(--r-badge);padding:.5rem 1.15rem;font-size:14px;line-height:1.4;}
.btn-amber{background:var(--amber);border-color:var(--amber);color:#3d2a00;}
.btn-amber:hover{background:#e2941a;border-color:#e2941a;color:#3d2a00;box-shadow:var(--sh-md);transform:translateY(-1px);}
.btn-lg{padding:.8rem 1.6rem;font-size:16px;}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--r-badge);font-size:13px;font-weight:600;line-height:1.6;}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-teal{background:var(--teal-soft);color:#0f7a6f;}
.badge-amber{background:var(--amber-soft);color:#96660a;border:1px solid #F7D08A;}
.badge-neutral{background:var(--alt);color:var(--muted);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  position:relative;width:30px;height:30px;border-radius:9px;background:var(--brand);flex:0 0 auto;
}
.brand-mark::before{
  content:"";position:absolute;left:8px;top:6px;width:9px;height:18px;border-radius:3px;background:#fff;opacity:.92;
}
.brand-mark::after{
  content:"";position:absolute;right:7px;top:9px;width:8px;height:12px;border-radius:3px;border:2px solid #fff;opacity:.92;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.02em;color:var(--title);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px;}
.main-nav .nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:600;color:#344054;border-radius:0;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;border-radius:2px;
}
.main-nav .nav-link:hover{color:var(--brand);text-decoration:none;}
.main-nav .nav-link:hover::after,.main-nav .nav-link.active::after{transform:scaleX(1);}
.main-nav .nav-link.active{color:var(--brand);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.link-login{font-size:15px;font-weight:600;color:#344054;padding:8px 2px;}
.link-login:hover{color:var(--brand);text-decoration:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:12px;
  color:var(--title);font-size:18px;align-items:center;justify-content:center;
}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(16,24,40,.42);z-index:1035;}
.nav-overlay.is-open{display:block;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb-bar .container{padding-top:14px;padding-bottom:14px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin:0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);text-decoration:none;}
.breadcrumb .sep{color:#C4CBD6;}
.breadcrumb .current{color:#344054;font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章区 ---------- */
.article-section{padding:44px 0 72px;}
.article-head{max-width:800px;margin:0 auto 26px;}
.article-kicker{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.article-kicker .k-label{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.06em;}
.article-kicker .k-line{flex:1;height:1px;background:var(--line);}
.article-title{
  font-size:clamp(26px,3vw,38px);line-height:1.3;font-weight:700;letter-spacing:-.02em;color:var(--title);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;
  padding-bottom:18px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);
}
.article-meta .m-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:#98A2B3;font-size:13px;}

.article-panel{
  max-width:800px;margin:0 auto;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:34px 38px 38px;
}
.article-body{font-size:16px;line-height:1.85;color:var(--text);overflow-wrap:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:650;color:var(--title);
  margin:36px 0 14px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:20px;font-weight:700;color:var(--title);margin:28px 0 10px;line-height:1.5;}
.article-body h4{font-size:17px;font-weight:700;color:var(--title);margin:22px 0 8px;}
.article-body p{margin:0 0 1.2em;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-dark);}
.article-body strong{color:var(--title);font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:8px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;line-height:1.9;margin-bottom:6px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.article-body ol{list-style:none;counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.1em;width:18px;height:18px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700;line-height:18px;text-align:center;
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;border-left:3px solid var(--brand);
  background:var(--page);border-radius:0 12px 12px 0;color:var(--text);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:22px auto 8px;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;
  margin:20px 0;font-size:15px;
}
.article-body table th,.article-body table td{
  border:1px solid var(--border);padding:11px 14px;text-align:left;white-space:nowrap;
}
.article-body table th{background:var(--alt);color:var(--title);font-weight:650;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0;}
.article-body code{background:var(--alt);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--brand-dark);}

.article-empty{text-align:center;padding:24px 6px 10px;}
.article-empty .empty-ico{
  width:64px;height:64px;border-radius:20px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{max-width:520px;margin:0 auto 22px;color:var(--text);}

/* ---------- 文末操作 ---------- */
.article-foot{
  max-width:800px;margin:26px auto 0;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.article-foot .tip{font-size:13px;color:var(--muted);max-width:420px;}
.foot-actions{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 相关推荐 ---------- */
.reco-section{padding:8px 0 78px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px;}
.section-head h2{
  position:relative;font-size:26px;font-weight:650;color:var(--title);padding-left:14px;line-height:1.35;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;border-radius:2px;background:var(--brand);
}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px;padding-left:14px;}
.section-head .more{font-size:14px;font-weight:600;white-space:nowrap;}
.section-head .more:hover{text-decoration:none;}

.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.reco-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);overflow:hidden;transition:all .22s ease;height:100%;
}
.reco-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:#D7E3F6;text-decoration:none;}
.reco-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--alt);}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.reco-card:hover .reco-thumb img{transform:scale(1.04);}
.reco-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.reco-body h3{font-size:17px;font-weight:700;color:var(--title);line-height:1.5;margin-bottom:10px;}
.reco-body p{font-size:14px;color:var(--text);line-height:1.75;margin-bottom:16px;}
.reco-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.reco-foot .go{font-size:13px;font-weight:600;color:var(--brand);}

/* ---------- CTA 通栏 ---------- */
.cta-strip{padding:0 0 80px;}
.cta-card{
  background:linear-gradient(135deg,#E8F0FB 0%,#FFFFFF 100%);
  border:1px solid #DCE7F8;border-radius:20px;padding:40px 42px;box-shadow:var(--sh-sm);
}
.cta-card .row{--bs-gutter-x:1.5rem;--bs-gutter-y:1.5rem;align-items:center;}
.cta-card h2{font-size:26px;font-weight:650;line-height:1.4;margin-bottom:12px;}
.cta-points{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text);}
.cta-points i{color:var(--teal);margin-top:5px;font-size:14px;}
.cta-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-sm);}
.cta-form .form-label{font-size:13px;font-weight:600;color:#344054;margin-bottom:6px;}
.cta-form .form-control{
  height:48px;border-radius:var(--r-btn);border:1px solid var(--border);font-size:15px;
  padding:0 14px;color:var(--title);box-shadow:none;
}
.cta-form .form-control::placeholder{color:#98A2B3;}
.cta-form .form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,80,155,.18);}
.cta-form .form-text{font-size:13px;color:var(--muted);margin-top:8px;}
.cta-form .err{display:none;font-size:13px;color:var(--danger);margin-top:6px;}
.cta-form.has-error .err{display:block;}
.cta-form.has-error .form-control{border-color:var(--danger);}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 24px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:26px;height:26px;border-radius:8px;}
.footer-brand .brand-mark::before{left:7px;top:5px;width:8px;height:16px;}
.footer-brand .brand-mark::after{right:6px;top:8px;width:7px;height:10px;}
.footer-brand strong{font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--title);}
.footer-desc{font-size:14px;color:var(--text);line-height:1.8;max-width:340px;margin-bottom:14px;}
.footer-badge{display:inline-block;font-size:12px;color:var(--muted);background:var(--alt);border-radius:var(--r-badge);padding:4px 12px;}
.footer-title{font-size:15px;font-weight:700;color:var(--title);margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:11px;}
.footer-list a,.footer-list span{font-size:14px;color:var(--text);line-height:1.7;}
.footer-list a:hover{color:var(--brand);text-decoration:underline;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--muted);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .reco-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
}
@media (max-width:991.98px){
  .container{padding-left:20px;padding-right:20px;}
  .header-inner{height:60px;gap:14px;}
  .brand-text{font-size:17px;}
  .nav-toggle{display:inline-flex;}
  .link-login{display:none;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:1050;
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:24px 18px;
    transform:translateX(105%);transition:transform .26s ease;box-shadow:var(--sh-lg);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav .nav-link{
    height:52px;display:flex;align-items:center;font-size:16px;border-bottom:1px solid var(--line);border-radius:0;
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.active{color:var(--brand);}
  .article-section{padding:32px 0 52px;}
  .article-panel{padding:26px 24px 30px;}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{padding:30px 26px;}
  .cta-card h2{font-size:23px;}
  .section-head h2{font-size:23px;}
}
@media (max-width:767.98px){
  .article-meta{gap:8px 14px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .article-body{padding:0;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .foot-actions{width:100%;}
  .foot-actions .btn{flex:1 1 auto;}
  .reco-grid{grid-template-columns:1fr;}
  .cta-strip{padding-bottom:56px;}
  .site-footer{padding:40px 0 20px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:16px;}
  .article-title{font-size:22px;}
  .article-panel{padding:20px 18px 24px;}
  .article-section{padding:24px 0 44px;}
  .crumb-bar .current{max-width:180px;}
  .btn-lg{padding:.72rem 1.2rem;font-size:15px;}
  .cta-card{padding:24px 18px;border-radius:16px;}
  .cta-card h2{font-size:21px;}
  .cta-form{padding:18px;}
  .cta-form .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --c-primary:#16509B;
  --c-primary-dark:#123F7A;
  --c-primary-soft:#E8F0FB;
  --c-accent:#16A394;
  --c-accent-soft:#E4F6F3;
  --c-amber:#F5A524;
  --c-amber-soft:#FEF3E2;
  --c-warn:#D97706;
  --c-danger:#DC2626;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-alt:#F1F5FB;
  --c-title:#101828;
  --c-text:#475467;
  --c-muted:#667085;
  --c-border:#E4E7EC;
  --c-divider:#EEF2F7;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --sh-sm:0 1px 2px rgba(16,24,40,.05);
  --sh-md:0 8px 24px rgba(22,80,155,.08);
  --sh-lg:0 18px 44px rgba(22,80,155,.12);
  --bs-primary:#16509B;
  --bs-primary-rgb:22,80,155;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-body-color:#475467;
  --bs-body-bg:#F7F9FC;
  --bs-border-radius:10px;
  --bs-link-color:#16509B;
  --bs-link-hover-color:#123F7A;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
}
h1,h2,h3,h4{margin:0;color:var(--c-title);font-weight:700;line-height:1.35}
h1{font-size:clamp(30px,4vw,50px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:30px;font-weight:650}
h3{font-size:20px;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .22s ease}
a:hover{color:var(--c-primary-dark);text-decoration:underline}
img{max-width:100%;display:block}
ul,ol{list-style:none;margin:0;padding:0}
button{font:inherit;cursor:pointer}
input{font:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,80,155,.18);border-radius:8px}
.container{max-width:1200px!important;padding-left:24px;padding-right:24px}
.row{--bs-gutter-x:1.5rem}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--c-divider);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-title);font-weight:700;font-size:19px;letter-spacing:-.02em;flex:0 0 auto}
.brand:hover{color:var(--c-primary);text-decoration:none}
.brand-mark{
  position:relative;width:30px;height:30px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,#16509B 0%,#2F7AD1 100%);
  box-shadow:var(--sh-sm);
}
.brand-mark::after{
  content:"";position:absolute;left:8px;right:8px;top:8px;bottom:8px;
  border:2px solid #fff;border-radius:3px 3px 8px 8px;border-bottom-width:3px;
}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  border:1px solid var(--c-border);background:#fff;color:var(--c-title);
  border-radius:var(--r-btn);height:40px;padding:0 14px;font-size:14px;font-weight:600;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav .nav-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:15px;font-weight:600;color:var(--c-text);
  padding:6px 0;min-height:44px;
}
.main-nav .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 .22s ease;
}
.main-nav .nav-link:hover{color:var(--c-primary);text-decoration:none}
.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after{transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:16px}
.nav-login{font-size:15px;font-weight:600;color:var(--c-text);display:inline-flex;align-items:center;min-height:44px}
.nav-login:hover{color:var(--c-primary);text-decoration:none}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:12px 22px;min-height:44px;text-decoration:none;
  transition:background .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease,color .22s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;box-shadow:var(--sh-md);transform:translateY(-1px);text-decoration:none}
.btn-outline{background:#fff;color:var(--c-primary);border-color:#CFDCF0}
.btn-outline:hover{background:#F2F7FE;border-color:var(--c-primary);color:var(--c-primary-dark);transform:translateY(-1px);text-decoration:none}
.btn-pill{border-radius:999px}
.btn-sm{padding:8px 16px;min-height:38px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.nav-cta{height:40px;min-height:40px;padding:0 20px;font-size:15px}

/* ===== 徽章与标签 ===== */
.badge-soft{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:13px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary)}
.badge-teal{background:var(--c-accent-soft);color:#0F7A6E}
.badge-amber{background:var(--c-amber-soft);color:#B57507}
.badge-gray{background:#F2F4F7;color:var(--c-muted)}

/* ===== 面包屑 ===== */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:16px}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#C7D4E8}
.crumb .now{color:var(--c-title);font-weight:600}

/* ===== 板块 ===== */
.section{padding:88px 0}
.section-alt{background:var(--c-alt)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:20px;border-radius:2px;background:var(--c-primary);
}
.section-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-muted)}

/* ===== 分类页 Hero ===== */
.page-hero{background:var(--c-alt);border-bottom:1px solid var(--c-divider);padding:44px 0 40px}
.page-hero .hero-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:36px;align-items:center}
.page-hero h1{margin-bottom:14px}
.hero-lead{font-size:16px;line-height:1.8;color:var(--c-text);max-width:640px;margin-bottom:0}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.ratio-hero{position:relative;aspect-ratio:16/10;border-radius:20px;overflow:hidden;box-shadow:var(--sh-lg);background:#DDE7F7}
.ratio-hero img{width:100%;height:100%;object-fit:cover}

/* ===== 栅格 ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}

/* ===== 卡片 ===== */
.card{
  background:var(--c-surface);border:1px solid var(--c-divider);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.card:hover{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-2px)}
.card h3{font-size:17px;margin-bottom:10px}
.card p{font-size:14px;line-height:1.75;color:var(--c-muted);margin-bottom:0}
.card-icon{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:17px;margin-bottom:16px;
}
.card-icon.teal{background:var(--c-accent-soft);color:#0F7A6E}
.card-icon.amber{background:var(--c-amber-soft);color:#B57507}
.card-icon.gray{background:#F2F4F7;color:var(--c-muted)}

/* ===== 步骤条 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-divider);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.step:hover{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-2px)}
.step:not(:last-child)::after{
  content:"";position:absolute;top:50px;right:-20px;width:16px;height:2px;background:#D7E3F6;border-radius:2px;
}
.step-dot{
  width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:18px;font-weight:700;margin-bottom:16px;
}
.step h3{margin-bottom:10px}
.step p{font-size:14px;line-height:1.8;color:var(--c-muted);margin-bottom:0}

/* ===== 清单 ===== */
.check-list li{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-bottom:1px dashed var(--c-divider);font-size:15px}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--c-accent);font-size:14px;margin-top:7px;flex:0 0 auto}
.ratio-photo{position:relative;aspect-ratio:4/3;border-radius:18px;overflow:hidden;box-shadow:var(--sh-md);background:#DDE7F7}
.ratio-photo img{width:100%;height:100%;object-fit:cover}

/* ===== 排行列表 ===== */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:grid;grid-template-columns:56px 1fr auto;gap:16px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-divider);border-radius:14px;
  padding:18px 20px;box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.rank-item:hover{box-shadow:var(--sh-md);border-color:#D7E3F6;transform:translateY(-2px)}
.rank-no{font-size:22px;font-weight:700;color:#C7D4E8;font-variant-numeric:tabular-nums;text-align:center}
.rank-body h3{font-size:17px;margin-bottom:4px}
.rank-body p{margin:0;font-size:14px;line-height:1.75;color:var(--c-muted)}

/* ===== FAQ ===== */
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;align-items:start}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-divider);border-radius:12px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:#D7E3F6;box-shadow:var(--sh-sm)}
.faq-item:has(.faq-q[aria-expanded="true"]){border-left:3px solid var(--c-primary)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;min-height:44px;
  font-size:16px;font-weight:600;color:var(--c-title);
}
.faq-q[aria-expanded="true"]{color:var(--c-primary)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transition:transform .22s ease;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--c-text)}

/* ===== CTA ===== */
.cta-card{
  background:linear-gradient(135deg,#E8F0FB 0%,#FFFFFF 100%);
  border:1px solid #DDE7F7;border-radius:20px;padding:44px;box-shadow:var(--sh-md);
}
.cta-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:center}
.cta-grid h2{margin-bottom:14px}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--c-text)}
.cta-points i{color:var(--c-accent);font-size:14px;margin-top:7px}
.form-field{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--c-divider);border-radius:16px;padding:22px;box-shadow:var(--sh-sm)}
.form-label{font-size:14px;font-weight:600;color:var(--c-title)}
.form-control{
  height:48px;border-radius:var(--r-input);border:1px solid var(--c-border);
  padding:0 16px;font-size:15px;color:var(--c-title);background:#fff;width:100%;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.form-control:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,80,155,.18);outline:none;background:#fff}
.form-hint{font-size:13px;color:var(--c-muted)}
.form-error{font-size:13px;color:var(--c-danger);display:none}
.form-error.show{display:block}

/* ===== 页脚 ===== */
.site-footer{background:#fff;border-top:1px solid var(--c-divider);padding-top:56px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-title);letter-spacing:-.02em;margin-bottom:6px}
.footer-brand .brand-mark{width:26px;height:26px;border-radius:8px}
.footer-brand .brand-mark::after{left:7px;right:7px;top:7px;bottom:7px;border-width:2px}
.footer-sub{font-size:12px;color:var(--c-muted);margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--c-muted);max-width:340px}
.footer-badge{display:inline-flex;font-size:12px;color:var(--c-muted);background:#F2F4F7;border-radius:999px;padding:5px 12px;margin-top:14px}
.footer-title{font-size:15px;font-weight:700;color:var(--c-title);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--c-muted)}
.footer-list a{color:var(--c-muted)}
.footer-list a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:40px;border-top:1px solid var(--c-divider);padding:20px 0;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--c-muted);
}
.footer-bottom p{margin:0}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .grid-4{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:991.98px){
  .container{padding-left:20px;padding-right:20px}
  .header-inner{min-height:60px}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .page-hero{padding:32px 0 32px}
  .page-hero .hero-grid{grid-template-columns:1fr;gap:24px}
  .ratio-hero{aspect-ratio:16/9;box-shadow:var(--sh-md)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .step:not(:last-child)::after{display:none}
  .split{grid-template-columns:1fr;gap:28px}
  .faq{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:26px}
  .cta-card{padding:30px 24px}
  .rank-item{grid-template-columns:44px 1fr;align-items:start}
  .rank-item .badge-soft{grid-column:2;justify-self:start}
  .nav-drawer{--bs-offcanvas-width:min(86vw,340px)}
  .nav-drawer .offcanvas-header{
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 20px;border-bottom:1px solid var(--c-divider);
  }
  .nav-drawer .offcanvas-title{font-size:16px;font-weight:700;color:var(--c-title)}
  .nav-drawer .offcanvas-body{display:flex;flex-direction:column;padding:12px 20px 24px;flex:1 1 auto}
  .nav-drawer .main-nav{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .nav-drawer .main-nav .nav-link{
    height:52px;min-height:52px;padding:0 4px;font-size:16px;
    border-bottom:1px solid var(--c-divider);
  }
  .nav-drawer .main-nav .nav-link::after{display:none}
  .nav-drawer .nav-actions{margin-top:auto;flex-direction:column;align-items:stretch;gap:12px;padding-top:24px}
  .nav-drawer .nav-login{justify-content:center;border:1px solid var(--c-border);border-radius:var(--r-btn);height:48px}
  .nav-drawer .nav-cta{width:100%;height:48px;min-height:48px;justify-content:center}
}
@media (min-width:992px){
  .nav-drawer{display:flex;align-items:center;flex:1;justify-content:flex-end}
  .nav-drawer .offcanvas-body{display:flex;align-items:center;justify-content:flex-end;gap:36px;width:100%;padding:0}
}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .cta-card{padding:24px 18px}
  .form-field{padding:18px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .grid-4,.grid-2{grid-template-columns:1fr}
  .card{padding:18px}
  .steps{gap:16px}
  .step{padding:22px 18px}
  .cta-grid .btn{width:100%}
}

/* roulang page: category2 */
/* ============ 1. 设计令牌 ============ */
:root{
  --brand:#16509B;
  --brand-hover:#123F7A;
  --brand-soft:#E8F0FB;
  --brand-line:#D7E3F6;
  --accent:#16A394;
  --accent-soft:rgba(22,163,148,.12);
  --amber:#F5A524;
  --amber-soft:rgba(245,165,36,.14);
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --surface-alt:#F1F5FB;
  --title:#101828;
  --text:#475467;
  --muted:#667085;
  --border:#E4E7EC;
  --line:#EEF2F7;
  --danger:#DC2626;
  --warn:#D97706;

  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;

  --sh-sm:0 1px 2px rgba(16,24,40,.05);
  --sh-md:0 8px 24px rgba(22,80,155,.08);
  --sh-lg:0 18px 44px rgba(22,80,155,.12);

  --sec-y:88px;
  --gap:24px;

  --bs-primary:#16509B;
  --bs-primary-rgb:22,80,155;
  --bs-body-bg:#F7F9FC;
  --bs-body-color:#475467;
  --bs-border-color:#E4E7EC;
  --bs-border-radius:10px;
  --bs-border-radius-lg:16px;
  --bs-link-color:#16509B;
  --bs-link-hover-color:#123F7A;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color .2s ease;}
a:hover{color:var(--brand-hover);text-decoration:underline;}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,80,155,.18);border-radius:8px;}
::selection{background:rgba(22,80,155,.14);}

/* ============ 3. 布局 ============ */
.container{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
.section{padding:var(--sec-y) 0;}
.section--alt{background:var(--surface-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{
  position:relative;
  font-size:30px;
  line-height:1.35;
  font-weight:650;
  padding-left:16px;
  margin-bottom:12px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.34em;
  width:4px;height:20px;
  border-radius:2px;
  background:var(--brand);
}
.section-head.center .section-title{padding-left:0;}
.section-head.center .section-title::before{display:none;}
.section-sub{color:var(--muted);font-size:15px;line-height:1.8;margin:0;}

/* ============ 4. 组件 ============ */
.btn{
  --bs-btn-border-radius:var(--r-btn);
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  padding:11px 22px;
  transition:all .22s ease;
  min-height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
}
.btn-brand,
.btn-primary{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:var(--sh-sm);
}
.btn-brand:hover,
.btn-primary:hover,
.btn-brand:focus,
.btn-primary:focus{
  background:var(--brand-hover);
  border-color:var(--brand-hover);
  color:#fff;
  box-shadow:var(--sh-md);
  transform:translateY(-1px);
}
.btn-ghost{
  background:#fff;
  border-color:var(--border);
  color:var(--title);
}
.btn-ghost:hover{
  border-color:var(--brand);
  background:#F2F7FE;
  color:var(--brand);
  transform:translateY(-1px);
}
.btn-pill{border-radius:var(--r-pill);padding:9px 20px;min-height:40px;}
.btn:disabled,.btn.disabled{opacity:.45;pointer-events:none;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:600;
  padding:4px 12px;
  line-height:1.6;
  border:1px solid transparent;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-accent{background:var(--accent-soft);color:#0F8074;}
.badge-amber{background:var(--amber-soft);color:#96650B;}
.badge-muted{background:#F2F4F7;color:var(--muted);}

.card-soft{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  height:100%;
}
.card-soft:hover{
  box-shadow:var(--sh-md);
  border-color:var(--brand-line);
  transform:translateY(-2px);
}

.ic-yes{
  display:inline-block;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--accent-soft);
  position:relative;
  vertical-align:middle;
}
.ic-yes::after{
  content:"";
  position:absolute;
  left:7px;top:3px;
  width:5px;height:9px;
  border:2px solid var(--accent);
  border-top:0;border-left:0;
  transform:rotate(45deg);
}
.ic-no{
  display:inline-block;
  width:16px;height:2px;
  border-radius:2px;
  background:#D0D5DD;
  vertical-align:middle;
}

.breadcrumb{--bs-breadcrumb-divider:'/';margin:0 0 14px;font-size:13px;}
.breadcrumb-item+.breadcrumb-item::before{color:#B4BCC9;}
.breadcrumb-item a{color:var(--muted);text-decoration:none;}
.breadcrumb-item a:hover{color:var(--brand);}
.breadcrumb-item.active{color:var(--brand);font-weight:600;}

.form-label{font-size:14px;font-weight:600;color:var(--title);margin-bottom:8px;}
.form-control{
  border-radius:var(--r-input);
  border:1px solid var(--border);
  height:48px;
  padding:10px 14px;
  font-size:15px;
  background:#fff;
  color:var(--title);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:#98A2B3;}
.form-control:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(22,80,155,.18);
  background:#fff;
}
.form-hint{font-size:13px;color:var(--muted);margin:10px 0 14px;line-height:1.7;}
.form-hint.is-error{color:var(--danger);}
.form-hint.is-ok{color:#0F8074;}

/* ============ 5. 板块 ============ */
/* 5.1 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.header-inner{
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:34px;height:34px;
  border-radius:11px;
  background:var(--brand);
  position:relative;
  flex:0 0 auto;
  box-shadow:var(--sh-sm);
}
.brand-mark::before{
  content:"";
  position:absolute;
  left:9px;right:9px;top:8px;bottom:11px;
  border:2px solid #fff;
  border-bottom:0;
  border-radius:6px 6px 2px 2px;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:50%;bottom:8px;
  width:6px;height:6px;
  margin-left:-3px;
  border-radius:50%;
  background:var(--amber);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--title);
  line-height:1.2;
}
.brand-sub{display:block;font-size:12px;font-weight:400;color:var(--muted);letter-spacing:0;margin-top:1px;}

.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav .nav-link{
  position:relative;
  color:var(--title);
  font-size:15px;
  font-weight:600;
  padding:6px 0;
  text-decoration:none;
}
.main-nav .nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.main-nav .nav-link:hover{color:var(--brand);}
.main-nav .nav-link:hover::after{transform:scaleX(1);}
.main-nav .nav-link.active{color:var(--brand);}
.main-nav .nav-link.active::after{transform:scaleX(1);}

.header-actions{display:flex;align-items:center;gap:16px;}
.link-login{font-size:15px;font-weight:600;color:var(--title);}
.link-login:hover{color:var(--brand);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--border);
  background:#fff;
  border-radius:10px;
  padding:0;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--title);
  border-radius:2px;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--title);
  border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.mobile-drawer{
  position:fixed;
  top:0;right:0;
  width:min(86vw,340px);
  height:100%;
  background:#fff;
  z-index:1060;
  transform:translateX(102%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  padding:20px 20px 24px;
  box-shadow:var(--sh-lg);
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:44px;height:44px;
  border:1px solid var(--border);
  background:#fff;
  border-radius:10px;
  font-size:20px;
  line-height:1;
  color:var(--muted);
}
.mobile-drawer .drawer-link{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 12px;
  border-radius:10px;
  color:var(--title);
  font-size:16px;
  font-weight:600;
  text-decoration:none;
}
.mobile-drawer .drawer-link.active{background:var(--brand-soft);color:var(--brand);}
.mobile-drawer .drawer-link:hover{background:#F2F7FE;color:var(--brand);}
.drawer-cta{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(16,24,40,.42);
  z-index:1055;
  opacity:0;
  visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* 5.2 分类页紧凑首屏 */
.page-hero{
  background:var(--surface-alt);
  padding:44px 0 48px;
  border-bottom:1px solid var(--line);
}
.page-hero h1{
  font-size:clamp(30px,3.6vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:14px;
}
.page-hero .hero-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  max-width:560px;
  margin:0;
}
.page-hero .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  background:#fff;
  border:1px solid var(--brand-line);
  border-radius:var(--r-pill);
  padding:4px 12px;
  margin-bottom:14px;
}
.hero-side{
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--sh-md);
  border:1px solid var(--line);
  background:#fff;
  aspect-ratio:16/10;
}
.hero-side img{width:100%;height:100%;object-fit:cover;}

/* 5.3 权益对比 */
.compare-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  overflow:hidden;
}
.compare-card .compare-head{
  padding:24px 24px 18px;
  border-bottom:1px solid var(--line);
}
.compare-card .compare-head h3{font-size:20px;margin-bottom:6px;}
.compare-card .compare-head p{font-size:14px;color:var(--muted);margin:0;}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;min-width:720px;}
.compare-table th,
.compare-table td{
  padding:16px 18px;
  text-align:center;
  border-bottom:1px solid var(--line);
  font-size:15px;
}
.compare-table thead th{
  background:#F7F9FC;
  color:var(--title);
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  position:relative;
  border-bottom:1px solid var(--border);
}
.compare-table thead th:first-child{text-align:left;}
.compare-table thead th.is-featured{background:var(--brand-soft);color:var(--brand);}
.compare-table thead th.is-featured::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:3px;
  background:var(--brand);
}
.badge-rec{
  display:inline-block;
  margin-left:8px;
  font-size:12px;
  font-weight:600;
  color:#fff;
  background:var(--amber);
  border-radius:var(--r-pill);
  padding:2px 9px;
  vertical-align:middle;
}
.compare-table tbody th{
  text-align:left;
  font-weight:600;
  color:var(--title);
  background:#fff;
  position:sticky;
  left:0;
  z-index:2;
  border-right:1px solid var(--line);
  white-space:nowrap;
}
.compare-table tbody tr:hover td,
.compare-table tbody tr:hover th{background:#FAFCFF;}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0;}
.cell-note{display:block;font-size:13px;color:var(--muted);margin-top:2px;}

.tier-stack{display:grid;gap:16px;padding:18px;}
.tier-group{
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px;
  background:#fff;
  box-shadow:var(--sh-sm);
}
.tier-group.is-featured{border-color:var(--brand-line);background:#F9FBFF;}
.tier-group h4{font-size:16px;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between;}
.tier-group ul{display:grid;gap:10px;}
.tier-group li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text);
  padding-bottom:10px;
  border-bottom:1px dashed var(--line);
}
.tier-group li:last-child{border-bottom:0;padding-bottom:0;}

/* 5.4 阶梯等级卡 */
.tier-grid{display:grid;gap:24px;grid-template-columns:repeat(3,1fr);align-items:start;}
.tier-card{
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--bar,var(--brand));
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  display:flex;
  flex-direction:column;
  height:100%;
}
.tier-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);}
.tier-card--a{--bar:var(--brand);}
.tier-card--b{--bar:var(--accent);}
.tier-card--c{--bar:var(--amber);}
.tier-card.is-recommended{
  box-shadow:var(--sh-md);
  transform:translateY(-8px);
  border-color:var(--brand-line);
}
.tier-card.is-recommended:hover{transform:translateY(-10px);}
.tier-card h3{font-size:20px;margin:12px 0 6px;}
.tier-card .tier-desc{font-size:14px;color:var(--muted);margin-bottom:16px;}
.tier-card .tier-price{
  font-size:28px;
  font-weight:700;
  color:var(--brand);
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:4px;
}
.tier-card .tier-price small{font-size:13px;font-weight:500;color:var(--muted);margin-left:4px;}
.tier-points{display:grid;gap:11px;margin:18px 0 20px;}
.tier-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;color:var(--text);}
.tier-points .ic-yes{margin-top:3px;flex:0 0 auto;}
.tier-link{
  margin-top:auto;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
}
.tier-link:hover{gap:10px;text-decoration:none;color:var(--brand-hover);}

/* 5.5 规则说明列表 */
.rule-list{display:grid;gap:18px;}
.rule-item{
  display:flex;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px;
  box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease,border-color .22s ease;
}
.rule-item:hover{box-shadow:var(--sh-md);border-color:var(--brand-line);}
.rule-num{
  flex:0 0 auto;
  width:32px;height:32px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:14px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}
.rule-item h3{font-size:17px;margin-bottom:6px;}
.rule-item p{font-size:14px;line-height:1.8;color:var(--text);margin:0;}
.note-strip{
  margin-top:24px;
  background:#fff;
  border:1px dashed var(--brand-line);
  border-radius:14px;
  padding:18px 22px;
  font-size:14px;
  line-height:1.8;
  color:var(--text);
}
.note-strip strong{color:var(--title);}

/* 5.6 FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;}
.accordion-item{
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  box-shadow:var(--sh-sm);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-left:3px solid var(--brand);
  box-shadow:var(--sh-md);
}
.accordion-button{
  background:#fff;
  color:var(--title);
  font-size:16px;
  font-weight:600;
  padding:18px 20px;
  border:0;
  box-shadow:none!important;
  line-height:1.6;
  display:flex;
  align-items:center;
  gap:12px;
}
.accordion-button:not(.collapsed){color:var(--brand);background:#fff;}
.accordion-button::after{display:none;}
.pm{
  margin-left:auto;
  position:relative;
  width:16px;height:16px;
  flex:0 0 auto;
}
.pm::before,.pm::after{
  content:"";
  position:absolute;
  background:var(--muted);
  border-radius:2px;
  transition:transform .22s ease,background .22s ease;
}
.pm::before{left:0;top:7px;width:16px;height:2px;}
.pm::after{left:7px;top:0;width:2px;height:16px;}
.accordion-button:not(.collapsed) .pm::after{transform:rotate(90deg);opacity:0;}
.accordion-button:not(.collapsed) .pm::before{background:var(--brand);}
.accordion-body{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--text);
}

/* 5.7 CTA 通栏 */
.cta-band{
  background:linear-gradient(135deg,#E8F0FB 0%,#FFFFFF 100%);
  border:1px solid var(--brand-line);
  border-radius:var(--r-card);
  padding:40px;
  box-shadow:var(--sh-sm);
}
.cta-band h2{font-size:28px;line-height:1.4;margin-bottom:14px;}
.check-list{display:grid;gap:12px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text);}
.check-list .ic-yes{margin-top:4px;flex:0 0 auto;}
.cta-form{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--sh-sm);}

/* 5.8 页脚 */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;}
.footer-brand .brand-mark::before{left:8px;right:8px;top:7px;bottom:10px;}
.footer-brand .brand-mark::after{width:5px;height:5px;margin-left:-2.5px;bottom:7px;}
.footer-brand strong{font-size:17px;font-weight:700;color:var(--title);letter-spacing:-.02em;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--muted);max-width:300px;margin-bottom:14px;}
.footer-badge{
  display:inline-block;
  font-size:12px;
  color:var(--muted);
  background:#F2F4F7;
  border-radius:var(--r-pill);
  padding:4px 12px;
}
.footer-title{font-size:15px;font-weight:700;color:var(--title);margin-bottom:16px;}
.footer-list{display:grid;gap:11px;}
.footer-list a,.footer-list span{font-size:14px;color:var(--muted);line-height:1.7;}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--muted);margin:0;}

/* ============ 6. 响应式 ============ */
@media (max-width:1199px){
  .tier-grid{gap:20px;}
}
@media (max-width:991px){
  :root{--sec-y:64px;}
  .main-nav{display:none;}
  .link-login{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-brand{display:none;}
  .header-inner{height:60px;}
  .brand-text{font-size:17px;}
  .tier-grid{grid-template-columns:repeat(2,1fr);}
  .tier-card.is-recommended{transform:none;}
  .tier-card.is-recommended:hover{transform:translateY(-2px);}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .cta-band h2{font-size:24px;}
  .section-title{font-size:26px;}
}
@media (max-width:767px){
  .page-hero{padding:32px 0 36px;}
  .page-hero h1{font-size:28px;}
  .hero-side{aspect-ratio:16/10;}
  .compare-table{min-width:640px;}
  .footer-bottom{margin-top:32px;}
}
@media (max-width:575px){
  :root{--sec-y:48px;}
  .container{padding-left:16px;padding-right:16px;}
  .tier-grid{grid-template-columns:1fr;gap:16px;}
  .card-soft,.tier-card,.rule-item{padding:18px;}
  .cta-band{padding:26px 18px;}
  .cta-band h2{font-size:22px;}
  .section-title{font-size:24px;padding-left:14px;}
  .section-title::before{height:18px;}
  .brand-sub{display:none;}
  .compare-card .compare-head{padding:18px 18px 14px;}
}

/* roulang page: category3 */
/* ============ 1. 设计令牌 ============ */
:root{
  --c-primary:#16509B;
  --c-primary-hover:#123F7A;
  --c-primary-light:#E8F0FB;
  --c-primary-rgb:22,80,155;
  --c-accent:#16A394;
  --c-accent-light:#E6F6F4;
  --c-amber:#F5A524;
  --c-amber-light:#FEF4E3;
  --c-warn:#D97706;
  --c-error:#DC2626;
  --bg-page:#F7F9FC;
  --bg-card:#FFFFFF;
  --bg-alt:#F1F5FB;
  --text-title:#101828;
  --text-body:#475467;
  --text-muted:#667085;
  --border:#E4E7EC;
  --divider:#EEF2F7;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.05);
  --shadow-md:0 8px 24px rgba(22,80,155,.08);
  --shadow-lg:0 18px 44px rgba(22,80,155,.12);
  --container:1200px;
  --section-y:88px;

  --bs-primary:#16509B;
  --bs-primary-rgb:22,80,155;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-color:#475467;
  --bs-body-bg:#F7F9FC;
  --bs-border-radius:10px;
  --bs-border-color:#E4E7EC;
  --bs-link-color:#16509B;
  --bs-link-hover-color:#123F7A;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-page);
  color:var(--text-body);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;}
a:hover{color:var(--c-primary-hover);}
h1,h2,h3,h4{margin:0;color:var(--text-title);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,80,155,.18);border-radius:6px;}
::selection{background:var(--c-primary-light);color:var(--c-primary-hover);}

/* ============ 3. 布局 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:var(--section-y) 0;}
.section-alt{background:var(--bg-alt);}
.section-head{margin-bottom:40px;}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:650;
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{
  content:"";width:4px;height:20px;border-radius:2px;background:var(--c-primary);flex:0 0 4px;
}
.section-head p{margin-top:12px;color:var(--text-muted);font-size:15px;}

/* ============ 4. 组件 ============ */
.btn{
  --bs-btn-border-radius:var(--radius-btn);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-weight:600;font-size:15px;
  padding:11px 22px;
  min-height:44px;
  transition:all .22s ease;
  border:1px solid transparent;
  cursor:pointer;
}
.btn-primary{
  --bs-btn-bg:#16509B;--bs-btn-border-color:#16509B;--bs-btn-color:#fff;
  --bs-btn-hover-bg:#123F7A;--bs-btn-hover-border-color:#123F7A;--bs-btn-hover-color:#fff;
  --bs-btn-active-bg:#123F7A;--bs-btn-active-border-color:#123F7A;--bs-btn-active-color:#fff;
  --bs-btn-disabled-bg:#16509B;--bs-btn-disabled-border-color:#16509B;
  background:var(--c-primary);border-color:var(--c-primary);color:#fff;
  box-shadow:var(--shadow-sm);
}
.btn-primary:hover{background:var(--c-primary-hover);border-color:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  background:#fff;border:1px solid var(--border);color:var(--text-title);
}
.btn-outline:hover{background:#F2F7FE;border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-amber{
  background:var(--c-amber);border-color:var(--c-amber);color:#3D2A05;
  box-shadow:var(--shadow-sm);
}
.btn-amber:hover{background:#E1951A;border-color:#E1951A;color:#3D2A05;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn:disabled,.btn.disabled{opacity:.45;pointer-events:none;}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--radius-pill);
  padding:4px 12px;
  font-size:13px;font-weight:600;line-height:1.6;
}
.badge-primary{background:var(--c-primary-light);color:var(--c-primary);}
.badge-accent{background:var(--c-accent-light);color:#0E7A6E;}
.badge-amber{background:var(--c-amber-light);color:#9A6607;}
.badge-muted{background:#F1F3F7;color:var(--text-muted);}

.card{
  --bs-card-border-radius:var(--radius-card);
  --bs-card-border-color:var(--divider);
  --bs-card-bg:#fff;
  background:#fff;border:1px solid var(--divider);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  height:100%;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D7E3F6;}

.form-control,.form-select{
  border-radius:var(--radius-input);
  border:1px solid var(--border);
  padding:12px 14px;
  font-size:15px;color:var(--text-title);
  min-height:48px;
  background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,80,155,.18);
}
.form-control::placeholder{color:#98A2B3;}
.form-label{font-size:14px;font-weight:600;color:var(--text-title);margin-bottom:6px;}
.form-hint{font-size:13px;color:var(--text-muted);margin-top:6px;}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-input);
  background:var(--c-accent-light);color:#0E7A6E;font-size:14px;font-weight:600;
}
.form-success.is-visible{display:block;}

/* ============ 5. 板块 ============ */
/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--divider);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:34px;height:34px;border-radius:9px;flex:0 0 34px;
  background:linear-gradient(150deg,#16509B 0%,#16A394 100%);
  box-shadow:var(--shadow-sm);
}
.brand-mark::before{
  content:"";position:absolute;left:9px;top:8px;width:16px;height:19px;
  background:#fff;border-radius:4px 4px 3px 3px;
}
.brand-mark::after{
  content:"";position:absolute;left:16px;top:14px;width:6px;height:6px;
  background:var(--c-primary);border-radius:50%;
}
.brand-text{
  font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--text-title);
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav .nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--text-body);
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.main-nav .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;
  transition:transform .22s ease;
}
.main-nav .nav-link:hover{color:var(--c-primary);}
.main-nav .nav-link:hover::after{transform:scaleX(1);}
.main-nav .nav-link.active{color:var(--c-primary);}
.main-nav .nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.link-plain{font-size:15px;font-weight:600;color:var(--text-body);}
.link-plain:hover{color:var(--c-primary);}
.btn-cta-top{
  border-radius:var(--radius-pill);height:40px;min-height:40px;padding:0 20px;font-size:15px;
}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:10px;
  background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-title);transition:all .22s ease;}
.nav-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 分类页紧凑 Hero */
.page-hero{
  background:var(--bg-alt);
  padding:42px 0 46px;
  border-bottom:1px solid var(--divider);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:16px;flex-wrap:wrap;}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C3CAD8;}
.crumb .cur{color:var(--text-title);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-light);border-radius:var(--radius-pill);
  padding:4px 12px;margin-bottom:14px;
}
.page-hero h1{
  font-size:clamp(30px,4vw,50px);line-height:1.25;font-weight:700;letter-spacing:-.02em;
  margin-bottom:14px;
}
.hero-sub{font-size:16px;color:var(--text-body);max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.hero-thumb{
  border-radius:16px;overflow:hidden;
  aspect-ratio:16/10;box-shadow:var(--shadow-md);border:1px solid #fff;background:#fff;
}
.hero-thumb img{width:100%;height:100%;object-fit:cover;}

/* 分组锚点导航 */
.group-nav{
  position:sticky;top:92px;
  background:#fff;border:1px solid var(--divider);border-radius:var(--radius-card);
  padding:18px;box-shadow:var(--shadow-sm);
}
.group-nav-title{font-size:14px;font-weight:700;color:var(--text-title);margin-bottom:12px;}
.group-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:10px 12px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--text-body);
  transition:all .2s ease;border:1px solid transparent;
}
.group-link span{font-size:13px;color:var(--text-muted);font-weight:500;}
.group-link:hover{background:#F2F7FE;color:var(--c-primary);}
.group-link.active{background:var(--c-primary-light);color:var(--c-primary);border-color:#D7E3F6;}
.group-link.active span{color:var(--c-primary);}

/* FAQ 手风琴 */
.group-block{margin-bottom:40px;scroll-margin-top:96px;}
.group-block:last-child{margin-bottom:0;}
.group-title{
  font-size:24px;line-height:1.35;font-weight:650;margin-bottom:6px;
  display:flex;align-items:center;gap:12px;
}
.group-title::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--c-primary);flex:0 0 4px;}
.group-desc{font-size:14px;color:var(--text-muted);margin-bottom:18px;}

.faq-accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-border-radius:12px;
  --bs-accordion-inner-border-radius:12px;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-btn-padding-x:18px;
  --bs-accordion-btn-padding-y:16px;
  --bs-accordion-body-padding-x:18px;
  --bs-accordion-body-padding-y:0;
  --bs-accordion-active-bg:#fff;
  --bs-accordion-active-color:var(--c-primary);
}
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--divider);border-radius:12px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-accordion .accordion-item:hover{border-color:#D7E3F6;}
.faq-accordion .accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;background:#fff;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-title);
  padding:16px 18px;line-height:1.6;
  border-left:3px solid transparent;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--c-primary);border-left-color:var(--c-primary);
  background:#fff;box-shadow:none;
}
.faq-accordion .accordion-button::after{display:none;}
.faq-plus{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:all .22s ease;
}
.faq-plus::before{left:0;top:8px;width:18px;height:2px;}
.faq-plus::after{left:8px;top:0;width:2px;height:18px;}
.faq-accordion .accordion-button:not(.collapsed) .faq-plus::after{transform:rotate(90deg);opacity:0;}
.faq-accordion .accordion-body{
  padding:0 18px 18px 21px;font-size:15px;line-height:1.8;color:var(--text-body);
}
.faq-accordion .accordion-body p{margin-bottom:8px;}
.faq-accordion .accordion-body p:last-child{margin-bottom:0;}

/* 自查清单 */
.check-card{display:flex;gap:16px;align-items:flex-start;padding:24px;}
.check-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:var(--c-primary-light);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
}
.check-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.check-card p{font-size:14px;line-height:1.75;color:var(--text-body);}

/* 帮助入口卡 */
.entry-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.entry-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .entry-media img{transform:scale(1.04);}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body h3{font-size:18px;font-weight:700;}
.entry-body p{font-size:14px;line-height:1.75;color:var(--text-body);}
.entry-link{font-size:14px;font-weight:600;color:var(--c-primary);margin-top:auto;}
.entry-link::after{content:" →";transition:margin .2s ease;}
.entry-card:hover .entry-link::after{margin-left:3px;}

/* 提交入口 CTA */
.ask-wrap{
  background:linear-gradient(135deg,#E8F0FB 0%,#FFFFFF 100%);
  border:1px solid var(--divider);border-radius:20px;
  padding:40px;box-shadow:var(--shadow-md);
}
.ask-wrap h2{font-size:26px;line-height:1.35;font-weight:650;margin-bottom:14px;}
.ask-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-body);margin-bottom:10px;
}
.ask-list li:last-child{margin-bottom:0;}
.tick{
  flex:0 0 20px;width:20px;height:20px;border-radius:50%;margin-top:4px;
  background:var(--c-accent-light);position:relative;
}
.tick::after{
  content:"";position:absolute;left:6px;top:3px;width:6px;height:10px;
  border-right:2px solid var(--c-accent);border-bottom:2px solid var(--c-accent);transform:rotate(42deg);
}
.ask-form{background:#fff;border:1px solid var(--divider);border-radius:16px;padding:24px;box-shadow:var(--shadow-sm);}
.ask-form .form-row{margin-bottom:14px;}

/* 页脚 */
.site-footer{
  background:#fff;border-top:1px solid var(--divider);
  padding:64px 0 0;margin-top:8px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:17px;font-weight:700;color:var(--text-title);letter-spacing:-.02em;}
.footer-brand .brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:8px;}
.footer-brand .brand-mark::before{left:8px;top:7px;width:14px;height:17px;}
.footer-brand .brand-mark::after{left:14px;top:12px;width:5px;height:5px;}
.footer-desc{font-size:14px;color:var(--text-muted);line-height:1.8;margin-bottom:14px;}
.footer-badge{
  display:inline-block;font-size:13px;color:var(--text-muted);
  background:#F1F3F7;border-radius:var(--radius-pill);padding:4px 12px;
}
.footer-title{font-size:15px;font-weight:700;color:var(--text-title);margin-bottom:14px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a,.footer-list span{font-size:14px;color:var(--text-muted);line-height:1.7;}
.footer-list a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--divider);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--text-muted);}

/* ============ 6. 响应式 ============ */
@media (max-width:1199.98px){
  :root{--section-y:64px;}
}
@media (max-width:991.98px){
  :root{--section-y:64px;}
  .header-inner{height:60px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;left:0;right:0;top:60px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--divider);
    box-shadow:var(--shadow-md);
    padding:8px 16px 20px;
    display:none;
    max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .main-nav.is-open{display:flex;}
  .main-nav .nav-link{
    min-height:52px;display:flex;align-items:center;font-size:16px;
    border-bottom:1px solid var(--divider);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.active{color:var(--c-primary);}
  .link-plain{display:none;}
  .group-nav{position:static;}
  .page-hero{padding:32px 0 36px;}
  .ask-wrap{padding:28px;}
}
@media (max-width:767.98px){
  .section-head h2{font-size:24px;}
  .group-title{font-size:21px;}
  .ask-wrap h2{font-size:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  :root{--section-y:48px;}
  .container{padding-left:16px;padding-right:16px;}
  .page-hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .brand-text{font-size:16px;}
  .btn-cta-top{padding:0 14px;font-size:14px;}
  .card,.check-card,.group-nav,.ask-form{padding:18px;}
  .ask-wrap{padding:20px;}
  .faq-accordion .accordion-button{font-size:15px;padding:14px 14px;}
  .faq-accordion .accordion-body{padding:0 14px 16px 17px;font-size:14px;}
  .entry-body{padding:18px;}
}

/* roulang page: category4 */
/* ===== 1. 设计令牌 ===== */
:root{
  --brand:#16509B;
  --brand-dark:#123F7A;
  --brand-soft:#E8F0FB;
  --brand-tint:#F2F7FE;
  --brand-line:#D7E3F6;
  --secondary:#16A394;
  --secondary-soft:#E4F6F3;
  --accent:#F5A524;
  --accent-soft:#FEF4E4;
  --warn:#D97706;
  --warn-soft:#FEF6E9;
  --danger:#DC2626;
  --bg:#F7F9FC;
  --alt:#F1F5FB;
  --card:#FFFFFF;
  --title:#101828;
  --text:#475467;
  --muted:#667085;
  --border:#E4E7EC;
  --line:#EEF2F7;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.05);
  --shadow-md:0 8px 24px rgba(22,80,155,.08);
  --shadow-lg:0 18px 44px rgba(22,80,155,.12);
  --bs-primary:#16509B;
  --bs-primary-rgb:22,80,155;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-color:#475467;
  --bs-body-bg:#F7F9FC;
  --bs-border-radius:16px;
  --bs-link-color:#16509B;
  --bs-link-hover-color:#123F7A;
}
/* ===== 2. 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--brand-dark);text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,80,155,.18);border-radius:8px}
h1,h2,h3,h4,h5,h6{color:var(--title);margin:0;font-weight:700}
h1{font-size:clamp(30px,4vw,50px);line-height:1.25;letter-spacing:-.02em}
h2{font-size:30px;line-height:1.35;font-weight:650}
h3{font-size:20px;line-height:1.5}
p{margin:0 0 1.2em}
ul,ol{margin:0}
.container{width:100%;max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:88px 0}
.section-alt{background:var(--alt)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px}
.section-head h2{position:relative;padding-left:16px;margin-bottom:14px}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;border-radius:2px;background:var(--brand)}
.section-head p{color:var(--muted);font-size:16px;margin-bottom:0}
.lead-note{font-size:14px;color:var(--muted);line-height:1.7}
/* ===== 3. 布局 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  position:relative;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#16509B 0%,#16A394 100%);
  box-shadow:var(--shadow-sm);flex:0 0 34px;
}
.brand-mark::before{
  content:"";position:absolute;left:9px;right:9px;top:9px;bottom:9px;
  border:2.5px solid #fff;border-bottom:none;border-radius:7px 7px 0 0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--title)}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:12px}
.main-nav .nav-link{
  position:relative;padding:8px 0;font-size:15px;font-weight:600;color:var(--text);
  min-height:44px;display:flex;align-items:center;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav .nav-link:hover{color:var(--brand);text-decoration:none}
.main-nav .nav-link:hover::after,.main-nav .nav-link.active::after{transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.login-link{font-size:15px;font-weight:600;color:var(--text);min-height:44px;display:flex;align-items:center}
.login-link:hover{color:var(--brand);text-decoration:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;
  border-radius:10px;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--title);transition:transform .2s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:8px 0 20px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;min-height:52px;padding:0 24px;font-size:16px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.active{color:var(--brand);background:var(--brand-tint)}
.mobile-drawer .drawer-foot{padding:16px 24px 0;display:flex;flex-direction:column;gap:12px}
/* ===== 4. 组件 ===== */
.btn-brand{
  background:var(--brand);border:1px solid var(--brand);color:#fff;font-weight:600;
  border-radius:var(--radius-btn);padding:11px 22px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;
  transition:background .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;box-shadow:var(--shadow-md);transform:translateY(-1px);text-decoration:none}
.btn-brand:active{transform:translateY(0)}
.btn-pill{border-radius:999px;height:40px;min-height:40px;padding:0 20px;font-size:15px}
.btn-ghost{
  background:#fff;border:1px solid var(--brand-line);color:var(--brand);font-weight:600;
  border-radius:var(--radius-btn);padding:11px 22px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:var(--brand-tint);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);text-decoration:none}
.btn-warn-outline{
  background:#fff;border:1px solid var(--warn);color:var(--warn);font-weight:600;
  border-radius:var(--radius-btn);padding:11px 22px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;
}
.btn-warn-outline:hover{background:var(--warn-soft);color:var(--warn);text-decoration:none}
.btn[disabled],.btn-brand[disabled]{opacity:.45;pointer-events:none}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;border-radius:999px;padding:5px 12px;line-height:1.4}
.tag-brand{background:var(--brand-soft);color:var(--brand)}
.tag-secondary{background:var(--secondary-soft);color:#0F7F73}
.tag-neutral{background:var(--alt);color:var(--muted)}
.tag-warn{background:var(--warn-soft);color:var(--warn)}
.divider{height:1px;background:var(--line);border:0;margin:0}
/* ===== 5. 板块 ===== */
.page-hero{
  background:linear-gradient(160deg,#F1F5FB 0%,#F7F9FC 100%);
  padding:44px 0 48px;border-bottom:1px solid var(--line);
}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb-line a{color:var(--muted)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .current{color:var(--title);font-weight:600}
.page-hero h1{margin-bottom:14px;max-width:560px}
.hero-summary{font-size:16px;color:var(--text);margin-bottom:18px;max-width:520px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-thumb{
  aspect-ratio:16/10;max-height:210px;overflow:hidden;border-radius:16px;
  box-shadow:var(--shadow-lg);border:1px solid #fff;
}
.hero-thumb img{width:100%;height:100%;object-fit:cover;max-height:210px}
.risk-card{
  background:#fff;border:1px solid var(--warn);border-left-width:4px;border-radius:var(--radius-card);
  padding:24px;height:100%;box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease;
}
.risk-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.risk-icon{
  width:44px;height:44px;border-radius:12px;background:var(--warn-soft);color:var(--warn);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px;
}
.risk-card h3{font-size:18px;margin-bottom:10px}
.risk-card p{font-size:15px;color:var(--text);margin-bottom:0}
.info-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;height:100%;box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.info-panel:hover{box-shadow:var(--shadow-md);border-color:var(--brand-line);transform:translateY(-2px)}
.info-panel .panel-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.panel-icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 42px;
}
.panel-icon.mint{background:var(--secondary-soft);color:#0F7F73}
.info-panel h3{font-size:19px;margin-bottom:2px}
.info-panel .panel-sub{font-size:13px;color:var(--muted)}
.info-list{list-style:none;padding:0;margin:0}
.info-list li{display:flex;gap:10px;padding:10px 0;border-top:1px solid var(--line);font-size:15px}
.info-list li:first-child{border-top:0;padding-top:0}
.info-list i{color:var(--secondary);font-size:14px;margin-top:7px}
.info-list i.warn{color:var(--warn)}
.timeline{display:flex;gap:16px;list-style:none;padding:0;margin:0}
.tl-item{flex:1;position:relative;padding-top:56px}
.tl-dot{
  position:absolute;top:0;left:0;width:42px;height:42px;border-radius:50%;background:#fff;
  border:2px solid var(--brand);color:var(--brand);font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:center;z-index:2;box-shadow:var(--shadow-sm);
}
.tl-item::before{
  content:"";position:absolute;top:20px;left:42px;right:-16px;height:2px;
  background:linear-gradient(90deg,var(--brand-line),var(--brand-soft));
}
.tl-item:last-child::before{display:none}
.tl-body h3{font-size:17px;margin-bottom:8px}
.tl-body p{font-size:14px;color:var(--muted);margin-bottom:0;line-height:1.75}
.checklist-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
}
.checklist-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.checklist-top h3{font-size:20px;margin-bottom:4px}
.checklist-top .sub{font-size:13px;color:var(--muted)}
.check-counter{font-size:22px;font-weight:700;color:var(--brand)}
.progress-track{height:8px;border-radius:999px;background:var(--alt);overflow:hidden;margin-bottom:24px}
.progress-track span{display:block;height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--secondary));transition:width .3s ease}
.check-item{
  display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border:1px solid var(--line);
  border-radius:12px;margin-bottom:12px;cursor:pointer;background:#fff;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.check-item:hover{border-color:var(--brand-line);background:var(--brand-tint)}
.check-item input{position:absolute;opacity:0;width:1px;height:1px}
.check-box{
  position:relative;flex:0 0 20px;width:20px;height:20px;border:1.5px solid var(--border);border-radius:6px;
  background:#fff;margin-top:4px;transition:background .18s ease,border-color .18s ease;
}
.check-box::after{
  content:"";position:absolute;left:6px;top:2px;width:5px;height:10px;
  border-right:2px solid #fff;border-bottom:2px solid #fff;
  transform:rotate(45deg) scale(0);transition:transform .18s ease;
}
.check-item input:checked + .check-box{background:var(--secondary);border-color:var(--secondary)}
.check-item input:checked + .check-box::after{transform:rotate(45deg) scale(1)}
.check-item input:focus-visible + .check-box{box-shadow:0 0 0 3px rgba(22,80,155,.18)}
.check-text strong{display:block;font-size:15px;color:var(--title);font-weight:600;line-height:1.6}
.check-text em{display:block;font-style:normal;font-size:13px;color:var(--muted);line-height:1.7}
.issue-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  height:100%;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.issue-card:hover{box-shadow:var(--shadow-md);border-color:var(--brand-line);transform:translateY(-2px)}
.issue-cover{aspect-ratio:16/9;overflow:hidden}
.issue-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.issue-card:hover .issue-cover img{transform:scale(1.04)}
.issue-body{padding:22px;display:flex;flex-direction:column;flex:1}
.issue-body h3{font-size:18px;margin-bottom:10px}
.issue-body p{font-size:15px;color:var(--text);margin-bottom:16px}
.issue-body .issue-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.cta-band{
  background:linear-gradient(135deg,#E8F0FB 0%,#FFFFFF 100%);
  border:1px solid var(--brand-line);border-radius:20px;padding:36px;box-shadow:var(--shadow-sm);
}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-points{list-style:none;padding:0;margin:18px 0 0}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;padding:6px 0;color:var(--text)}
.cta-points i{color:var(--secondary);margin-top:7px;font-size:14px}
.cta-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm)}
.field-label{display:block;font-size:13px;font-weight:600;color:var(--title);margin-bottom:8px}
.form-input{
  width:100%;height:48px;border:1px solid var(--border);border-radius:var(--radius-input);
  padding:0 14px;background:#fff;font-size:15px;color:var(--title);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-input::placeholder{color:#98A2B3}
.form-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,80,155,.18);outline:none}
.field-group{margin-bottom:16px}
.field-error{font-size:13px;color:var(--danger);margin:8px 0 0}
.form-note{font-size:13px;color:#0F7F73;margin:12px 0 0}
.form-hint{font-size:13px;color:var(--muted);margin:12px 0 0}
.btn-block{width:100%}
/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{font-size:17px;font-weight:700;letter-spacing:-.02em;color:var(--title)}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.8;max-width:340px;margin-bottom:14px}
.footer-badge{display:inline-block;font-size:13px;color:var(--muted);background:var(--alt);border-radius:999px;padding:5px 12px}
.footer-title{font-size:15px;font-weight:700;color:var(--title);margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{font-size:14px;color:var(--muted)}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--muted);margin:0}
/* ===== 6. 响应式 ===== */
@media (min-width:1200px){
  .container{max-width:1200px}
}
@media (max-width:1199.98px){
  .main-nav{gap:20px}
  .main-nav .nav-link{font-size:14px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .main-nav,.login-link{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:60px}
  h2{font-size:26px}
  .page-hero{padding:32px 0 36px}
  .cta-band{padding:28px}
}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:28px}
  h2{font-size:24px}
  .section-head{margin-bottom:28px}
  .timeline{flex-direction:column;gap:22px}
  .tl-item{padding-top:0;padding-left:56px}
  .tl-dot{top:2px}
  .tl-item::before{top:46px;left:20px;right:auto;bottom:-22px;width:2px;height:auto;background:linear-gradient(180deg,var(--brand-line),var(--brand-soft))}
  .checklist-wrap{padding:20px}
  .cta-band{padding:22px}
  .footer-bottom{flex-direction:column}
  .hero-thumb{max-height:190px;margin-top:8px}
  .hero-thumb img{max-height:190px}
}
@media (max-width:575.98px){
  .brand-text small{display:none}
  .section-head h2{padding-left:14px}
}