/* roulang page: index */
:root{
  --c-primary:#13538F;
  --c-primary-dark:#0C3A6B;
  --c-primary-50:#EEF4FB;
  --c-primary-100:#DCE9F6;
  --c-accent:#F2703A;
  --c-success:#12A67C;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F7FA;
  --c-text:#0F1B2A;
  --c-text-2:#4A5A6E;
  --c-text-3:#8695A8;
  --c-border:#E3E9F0;
  --r-card:14px;
  --r-lg:20px;
  --r-ctrl:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04), 0 8px 24px rgba(19,83,143,.07);
  --sh-2:0 12px 32px rgba(19,83,143,.14);
  --topbar-h:44px;
  --bs-primary:#13538F;
  --bs-body-color:#0F1B2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E3E9F0;
  --bs-border-radius:14px;
  --bs-link-color:#13538F;
  --bs-link-hover-color:#0C3A6B;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--c-bg);color:var(--c-text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:0;
}
img{max-width:100%;display:block;background:#EEF4FB;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--c-text);}
h1{font-size:clamp(26px,4.2vw,44px);font-weight:700;line-height:1.28;}
h2{font-size:clamp(22px,2.8vw,32px);font-weight:600;line-height:1.35;}
h3{font-size:19px;font-weight:600;line-height:1.5;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:3px solid rgba(19,83,143,.20);outline-offset:2px;}
.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto;max-width:1140px;}
@media (min-width:1400px){.container{max-width:1240px;}}
.sec{padding:88px 0;}
.sec-alt{background:var(--c-bg-alt);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-primary-50);border-radius:var(--r-pill);
  padding:5px 12px;margin-bottom:14px;
}
.sec-head p{margin-top:12px;color:var(--c-text-2);font-size:16px;line-height:1.8;}
.num{font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* 顶部倒计时 */
.topbar{
  position:sticky;top:0;z-index:1041;height:var(--topbar-h);background:#0C3A6B;
  display:flex;align-items:center;color:rgba(255,255,255,.85);font-size:13px;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-note{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap;}
.topbar-note b{color:#fff;font-weight:600;}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--c-success);flex:none;}
.topbar-clock{display:flex;align-items:center;gap:8px;flex:none;}
.topbar-clock .label{color:rgba(255,255,255,.7);}
.topbar-clock .time{
  color:var(--c-accent);font-weight:700;font-size:14px;letter-spacing:.04em;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums;
}

/* 导航 */
.site-header{
  position:sticky;top:var(--topbar-h);z-index:1040;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
}
.nav-bar{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:none;
  background:linear-gradient(140deg,#13538F,#0C3A6B);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:15px;letter-spacing:-.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;letter-spacing:-.02em;}
.brand-text .up{font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.02em;}
.brand-text .down{font-size:17px;font-weight:700;color:var(--c-text);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;min-width:0;}
.main-nav a{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:8px;white-space:nowrap;transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-50);text-decoration:none;}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-tools{display:flex;align-items:center;gap:14px;flex:none;}
.command-search{position:relative;width:240px;}
.command-search svg{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:1.8;
}
.command-search input{
  width:100%;height:40px;border:1px solid var(--c-border);border-radius:var(--r-ctrl);
  background:#fff;padding:0 44px 0 36px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search input::placeholder{color:var(--c-text-3);}
.command-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(19,83,143,.12);outline:none;}
.command-search kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-family:inherit;font-size:12px;color:var(--c-text-3);background:#F1F5F9;
  border:1px solid var(--c-border);border-radius:6px;padding:1px 7px;line-height:18px;
}
.nav-link-quiet{font-size:14px;font-weight:500;color:var(--c-text-2);white-space:nowrap;}
.nav-link-quiet:hover{color:var(--c-primary);text-decoration:none;}
.burger{
  display:none;width:44px;height:40px;border:1px solid var(--c-border);border-radius:var(--r-ctrl);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:.25s;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.offcanvas{width:300px;}
.offcanvas .oc-nav a{
  display:flex;align-items:center;height:48px;font-size:16px;color:var(--c-text);
  border-bottom:1px solid var(--c-border);text-decoration:none;
}
.offcanvas .oc-nav a.active{color:var(--c-primary);font-weight:600;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-ctrl);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;text-decoration:none;}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:#0F467A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:var(--sh-1);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#DE5F29;color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(242,112,58,.28);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary-100);}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary-dark);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.btn-text .arw{transition:transform .2s ease;}
.btn-text:hover{text-decoration:none;color:var(--c-primary-dark);}
.btn-text:hover .arw{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F5F9FD 0%,#FFFFFF 100%);
  padding:72px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(19,83,143,.08) 0 1px,transparent 1px 22px);
  opacity:.5;
}
.hero .container{position:relative;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{margin-bottom:18px;}
.hero-sub{font-size:18px;line-height:1.7;color:var(--c-text-2);max-width:600px;margin-bottom:28px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px;}
.hero-trust{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);flex-wrap:wrap;}
.hero-trust i{width:4px;height:4px;border-radius:50%;background:var(--c-primary-100);display:inline-block;}
.login-card{
  background:#fff;border:1px solid var(--c-border);border-radius:16px;
  box-shadow:0 8px 28px rgba(19,83,143,.10);padding:26px 24px;
}
.login-card .tip{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;
}
.login-card .tip b{color:var(--c-primary);font-weight:600;}
.login-card h2{font-size:20px;margin-bottom:6px;}
.login-card .lead{font-size:14px;color:var(--c-text-2);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;font-weight:500;color:var(--c-text-2);margin-bottom:6px;}
.field input{
  width:100%;height:48px;border:1px solid var(--c-border);border-radius:var(--r-ctrl);
  padding:0 14px;font-size:15px;color:var(--c-text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--c-text-3);}
.field input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(19,83,143,.12);outline:none;}
.login-card .btn{width:100%;}
.login-card .sub-link{display:block;text-align:center;font-size:14px;margin-top:14px;font-weight:600;}

/* 活动卖点 */
.sell-grid{display:grid;grid-template-columns:58% 42%;gap:24px;}
.sell-col{display:flex;flex-direction:column;gap:24px;}
.sell-col.offset{padding-top:24px;}
.sell-item{
  display:flex;gap:20px;align-items:flex-start;padding:26px 24px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.sell-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.sell-item .idx{
  width:44px;height:44px;flex:none;border-radius:12px;background:rgba(19,83,143,.12);
  color:var(--c-primary);font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums;
}
.sell-item h3{font-size:17px;margin-bottom:6px;}
.sell-item p{font-size:14px;line-height:1.7;color:var(--c-text-2);margin:0;}

/* 图墙 */
.wall-row{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;}
.wall-row + .wall-row{margin-top:16px;}
.wall-item{
  position:relative;border-radius:var(--r-card);overflow:hidden;background:#EEF4FB;
  display:block;text-decoration:none;
}
.wall-item:hover{text-decoration:none;}
.wall-item.big{grid-column:span 6;aspect-ratio:16/10;}
.wall-item.small{grid-column:span 3;aspect-ratio:4/3;}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.3,1);}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(12,58,107,.55) 0%,rgba(12,58,107,0) 40%);
  transition:background .35s cubic-bezier(.2,.7,.3,1);
}
.wall-item:hover img{transform:scale(1.03);}
.wall-item:hover::after{background:linear-gradient(to top,rgba(12,58,107,.72) 0%,rgba(12,58,107,.05) 46%);}
.wall-cap{position:absolute;left:20px;right:20px;bottom:16px;z-index:2;color:#fff;}
.wall-cap h3{font-size:17px;color:#fff;margin-bottom:2px;}
.wall-cap span{font-size:13px;color:rgba(255,255,255,.82);}

/* 步骤 */
.step-track{display:flex;gap:12px;}
.step{position:relative;flex:1;padding-right:12px;}
.step:not(:last-child)::after{
  content:"";position:absolute;top:14px;left:36px;right:0;
  border-top:1px dashed var(--c-primary-100);
}
.step-dot{
  width:28px;height:28px;border-radius:50%;background:var(--c-primary);color:#fff;
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  position:relative;z-index:2;margin-bottom:16px;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:14px;line-height:1.7;color:var(--c-text-2);margin:0;}

/* CTA 块 */
.cta-band{
  background:#0C3A6B;border-radius:var(--r-lg);padding:44px;color:#fff;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 16px);
}
.cta-band .cta-copy{position:relative;}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:14px;margin:0;}
.cta-band .cta-actions{display:flex;gap:12px;flex:none;position:relative;}

/* 资讯卡片 */
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);text-decoration:none;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);text-decoration:none;}
.news-thumb{position:relative;aspect-ratio:16/9;background:#EEF4FB;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-badge{
  position:absolute;left:12px;top:12px;z-index:2;background:rgba(19,83,143,.1);color:var(--c-primary);
  border-radius:var(--r-pill);padding:4px 12px;font-size:12px;font-weight:600;backdrop-filter:blur(4px);
}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-title{
  font-size:16px;font-weight:600;line-height:1.55;color:var(--c-text);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--c-primary);}
.news-desc{
  font-size:14px;line-height:1.7;color:var(--c-text-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);
  padding-top:14px;border-top:1px solid var(--c-border);
}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-border);}
.news-meta .arw{margin-left:auto;color:var(--c-primary);font-weight:600;transition:transform .2s ease;}
.news-card:hover .news-meta .arw{transform:translateX(3px);}
.empty-state{
  border:1px dashed var(--c-border);border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;
}
.empty-state svg{width:48px;height:48px;stroke:var(--c-primary-100);fill:none;stroke-width:1.4;margin-bottom:14px;}
.empty-state p{font-size:14px;color:var(--c-text-2);margin-bottom:16px;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:#fff;border:1px solid var(--c-border) !important;border-radius:var(--r-card) !important;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--c-text);background:#fff;padding:20px 22px;
  border-radius:0 !important;box-shadow:none !important;position:relative;
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:#fff;}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--c-accent);
}
.accordion-button::after{
  background-image:none;content:"";width:14px;height:14px;flex:none;
  background:
    linear-gradient(var(--c-primary),var(--c-primary)) center/14px 2px no-repeat,
    linear-gradient(var(--c-primary),var(--c-primary)) center/2px 14px no-repeat;
  transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background:
    linear-gradient(var(--c-primary),var(--c-primary)) center/14px 2px no-repeat,
    linear-gradient(var(--c-primary),var(--c-primary)) center/2px 14px no-repeat;
}
.accordion-button:focus{box-shadow:none;outline:3px solid rgba(19,83,143,.20);outline-offset:-3px;}
.accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2);}

/* 页脚 */
.site-footer{background:#F1F5F9;padding-top:64px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:16px;}
.footer-brand .fb-name{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.02em;margin-bottom:10px;}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--c-text-2);max-width:320px;}
.footer-list li{margin-bottom:2px;}
.footer-list a,.footer-list span{
  font-size:14px;line-height:2.1;color:var(--c-text-2);display:inline-block;transition:all .2s ease;
}
.footer-list a:hover{color:var(--c-primary);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--c-border);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}

/* 响应式 */
@media (max-width:1199.98px){
  .command-search{width:200px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991.98px){
  :root{--topbar-h:40px;}
  .main-nav,.nav-tools{display:none;}
  .burger{display:flex;}
  .nav-bar{height:60px;justify-content:space-between;}
  .brand-text .down{font-size:15px;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .step-track{flex-direction:column;gap:0;}
  .step{padding:0 0 26px 36px;position:relative;}
  .step:not(:last-child)::after{
    top:36px;left:13px;right:auto;bottom:0;height:auto;
    border-top:0;border-left:1px dashed var(--c-primary-100);width:0;
  }
  .wall-item.big,.wall-item.small{grid-column:span 6;aspect-ratio:16/10;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sec{padding:64px 0;}
}
@media (max-width:767.98px){
  .sell-grid{grid-template-columns:1fr;}
  .sell-col.offset{padding-top:0;}
  .wall-item.big,.wall-item.small{grid-column:span 12;}
  .sec{padding:48px 0;}
  .topbar-note span.hide-sm{display:none;}
  .cta-band .cta-actions{width:100%;flex-direction:column;gap:10px;}
  .cta-band .cta-actions .btn{width:100%;}
  .hero-actions{flex-direction:column;gap:10px;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:575.98px){
  h1{font-size:26px;}
  .sec{padding:44px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .login-card{padding:22px 18px;}
  .topbar{font-size:12px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#13538F;
  --c-primary-dark:#0C3A6B;
  --c-primary-50:#EEF4FB;
  --c-primary-100:#DCE9F6;
  --c-accent:#F2703A;
  --c-accent-dark:#DB5C29;
  --c-success:#12A67C;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F7FA;
  --c-text:#0F1B2A;
  --c-text-2:#4A5A6E;
  --c-text-3:#8695A8;
  --c-border:#E3E9F0;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04), 0 8px 24px rgba(19,83,143,.07);
  --sh-2:0 12px 32px rgba(19,83,143,.14);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;

  --bs-primary:#13538F;
  --bs-body-color:#0F1B2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E3E9F0;
  --bs-border-radius:14px;
  --bs-link-color:#13538F;
  --bs-link-hover-color:#0C3A6B;
  --bs-font-sans-serif:var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--c-primary-50);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--c-text);font-weight:600;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,button{font-size:inherit;}
:focus-visible{outline:3px solid rgba(19,83,143,.20);outline-offset:2px;border-radius:8px;}

.container{width:100%;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1240px;}}
@media (min-width:1200px) and (max-width:1399.98px){.container{max-width:1140px;}}

/* ============ Buttons ============ */
.btn-primary-solid,
.btn-ghost,
.btn-accent,
.btn-ghost-light,
.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary-solid{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(19,83,143,.18);}
.btn-primary-solid:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none;}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(242,112,58,.22);}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 30px rgba(242,112,58,.28);text-decoration:none;}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary-100);}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary-dark);text-decoration:none;}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;text-decoration:none;}
.btn-text{height:auto;padding:0;color:var(--c-primary);font-weight:600;}
.btn-text:hover{color:var(--c-primary-dark);text-decoration:none;}
.btn-text .arrow{display:inline-block;transition:transform .22s ease;}
.btn-text:hover .arrow{transform:translateX(3px);}
.btn-primary-solid:active,.btn-accent:active,.btn-ghost:active{transform:translateY(0);}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
}
.nav-bar{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:none;
  background:linear-gradient(140deg,var(--c-primary) 0%,var(--c-primary-dark) 100%);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:17px;
  display:grid;place-items:center;letter-spacing:-.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;letter-spacing:-.02em;}
.brand-top{font-family:var(--font-num);font-size:17px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;font-weight:500;color:var(--c-text-3);}
.main-nav{display:flex;align-items:center;gap:26px;flex:1;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;text-decoration:none;
}
.main-nav a:hover{color:var(--c-primary);text-decoration:none;}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:13px;width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:1.8;}
.nav-search input{
  width:230px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--c-border);background:#fff;
  padding:0 52px 0 36px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(19,83,143,.12);}
.nav-search kbd{
  position:absolute;right:10px;font-family:var(--font-num);font-size:11px;
  color:var(--c-text-3);background:var(--c-bg-alt);border:1px solid var(--c-border);
  border-radius:6px;padding:1px 6px;line-height:1.6;
}
.nav-quick{font-size:14px;font-weight:500;color:var(--c-text-2);}
.nav-cta{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  background:#fff;padding:0;place-items:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary);}
@media (max-width:1199.98px){
  .nav-search input{width:180px;}
}
@media (max-width:991.98px){
  .main-nav,.nav-actions{display:none;}
  .nav-toggle{display:grid;}
  .nav-bar{height:60px;justify-content:space-between;gap:12px;}
  .brand-top{font-size:15px;}
}
.mobile-drawer{width:300px;border-left:1px solid var(--c-border);}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--c-border);padding:18px 20px;}
.drawer-title{font-size:16px;font-weight:600;}
.mobile-drawer .offcanvas-body{display:flex;flex-direction:column;padding:12px 20px 20px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:16px;line-height:48px;color:var(--c-text-2);border-bottom:1px solid var(--c-border);
  text-decoration:none;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);font-weight:600;}
.drawer-cta{margin-top:auto;width:100%;}

/* ============ Mini Hero ============ */
.mini-hero{
  position:relative;overflow:hidden;
  padding:56px 0 60px;
  background:
    linear-gradient(180deg,#F5F9FD 0%,#FFFFFF 100%);
}
.mini-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(19,83,143,.07) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(19,83,143,.07) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  pointer-events:none;
}
.mini-hero .container{position:relative;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);text-decoration:none;}
.crumb span.sep{color:#C6D2DE;}
.crumb .current{color:var(--c-text-2);}
.mini-hero h1{
  font-size:clamp(26px,4.2vw,40px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
  max-width:900px;
}
.mini-hero .hero-sub{
  margin-top:16px;font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:820px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags li{
  font-size:13px;font-weight:500;color:var(--c-primary);
  background:var(--c-primary-50);border:1px solid var(--c-primary-100);
  border-radius:var(--r-pill);padding:5px 14px;
}

/* ============ Sections ============ */
.section{padding:88px 0;}
.section-alt{background:var(--c-bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);background:var(--c-primary-50);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(22px,2.8vw,32px);line-height:1.35;}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);line-height:1.85;}

/* ============ Prep block ============ */
.prep-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  aspect-ratio:4/3;background:var(--c-primary-50);
}
.prep-media img{width:100%;height:100%;object-fit:cover;}
.prep-media::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:55%;
  background:linear-gradient(to top,rgba(12,58,107,.72),rgba(12,58,107,0));
}
.prep-media .media-cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;
}
.prep-media .media-cap strong{display:block;font-size:17px;font-weight:600;letter-spacing:-.01em;}
.prep-media .media-cap span{font-size:13px;opacity:.85;}
.prep-list{display:flex;flex-direction:column;gap:14px;}
.prep-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.prep-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-100);}
.prep-item .dot{
  width:24px;height:24px;border-radius:50%;flex:none;margin-top:3px;
  background:var(--c-primary-50);color:var(--c-primary);
  display:grid;place-items:center;font-size:13px;font-weight:700;font-family:var(--font-num);
}
.prep-item h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.prep-item p{margin:0;font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ============ Steps timeline ============ */
.steps-flow{max-width:920px;}
.step-item{
  position:relative;display:grid;grid-template-columns:56px 1fr;gap:24px;padding-bottom:28px;
}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:27px;top:70px;bottom:-6px;width:2px;
  background-image:repeating-linear-gradient(to bottom,var(--c-primary-100) 0 6px,transparent 6px 13px);
}
.step-item:last-child::before{display:none;}
.step-num{
  width:56px;height:56px;border-radius:var(--r-card);
  background:var(--c-primary);color:#fff;
  font-family:var(--font-num);font-size:20px;font-weight:700;
  display:grid;place-items:center;letter-spacing:-.02em;
  box-shadow:0 8px 20px rgba(19,83,143,.20);
}
.step-body{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-100);}
.step-body h3{font-size:18px;margin-bottom:8px;}
.step-body p{font-size:15px;line-height:1.8;color:var(--c-text-2);margin:0 0 10px;}
.step-tips{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.step-tips li{
  font-size:13px;color:var(--c-text-2);background:var(--c-bg-alt);
  border:1px solid var(--c-border);border-radius:var(--r-pill);padding:4px 12px;
}

/* ============ Notice rows ============ */
.notice-list{border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--sh-1);}
.notice-row{
  display:grid;grid-template-columns:220px 1fr 1.3fr;gap:20px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--c-border);
  transition:background-color .2s ease;
}
.notice-row:last-child{border-bottom:none;}
.notice-row:hover{background:#F7FAFD;}
.notice-code{font-family:var(--font-num);font-size:14px;font-weight:600;color:var(--c-primary-dark);}
.notice-mean{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.notice-fix{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.notice-fix strong{display:block;font-size:13px;color:var(--c-text-3);font-weight:500;margin-bottom:2px;}

/* ============ FAQ ============ */
.faq-acc{max-width:920px;}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card) !important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  position:relative;display:flex;align-items:center;gap:14px;
  width:100%;padding:18px 22px;background:#fff;border:none;box-shadow:none;
  font-size:16px;font-weight:600;color:var(--c-text);text-align:left;line-height:1.6;
  transition:background-color .2s ease,color .2s ease;
}
.faq-acc .accordion-button:hover{background:#FAFCFE;color:var(--c-primary);}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary-dark);background:#fff;}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:transparent;transition:background-color .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::before{background:var(--c-accent);}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .ico{position:relative;width:20px;height:20px;flex:none;margin-left:auto;}
.faq-acc .ico::before,
.faq-acc .ico::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .25s ease;
}
.faq-acc .ico::before{left:0;top:9px;width:20px;height:2px;}
.faq-acc .ico::after{left:9px;top:0;width:2px;height:20px;}
.faq-acc .accordion-button:not(.collapsed) .ico::after{transform:scaleY(0);}
.faq-acc .accordion-body{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);
  border-top:1px solid var(--c-border);padding-top:16px;
}
.faq-acc .accordion-body p:last-child{margin-bottom:0;}

/* ============ CTA band ============ */
.cta-wrap{padding:0 0 88px;}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--c-primary-dark);color:#fff;
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(to right,#fff 1px,transparent 1px),linear-gradient(to bottom,#fff 1px,transparent 1px);
  background-size:36px 36px;pointer-events:none;
}
.cta-band > *{position:relative;}
.cta-copy h2{color:#fff;font-size:24px;line-height:1.4;margin-bottom:8px;}
.cta-copy p{margin:0;font-size:14px;color:rgba(255,255,255,.78);line-height:1.75;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex:none;}

/* ============ Footer ============ */
.site-footer{background:#F1F5F9;padding-top:64px;border-top:1px solid var(--c-border);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.fb-name{font-size:17px;font-weight:700;letter-spacing:-.02em;color:var(--c-text);margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-text-2);margin:0;max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:14px;}
.footer-list li{font-size:14px;line-height:2.1;color:var(--c-text-2);}
.footer-list a{color:var(--c-text-2);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-list a:hover{color:var(--c-primary);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--c-border);padding:20px 0;font-size:13px;color:var(--c-text-3);
}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .nav-search input{width:170px;}
  .nav-quick{display:none;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .mini-hero{padding:44px 0 48px;}
  .cta-wrap{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .notice-row{grid-template-columns:1fr;gap:8px;padding:18px 20px;}
  .notice-mean::before{content:"含义：";color:var(--c-text-3);}
}
@media (max-width:767.98px){
  .step-item{grid-template-columns:44px 1fr;gap:16px;}
  .step-num{width:44px;height:44px;font-size:17px;border-radius:12px;}
  .step-item::before{left:21px;top:56px;}
  .step-body{padding:18px 18px;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:24px;padding:32px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-accent,.cta-actions .btn-ghost-light{flex:1;}
  .prep-media{aspect-ratio:16/10;}
}
@media (max-width:575.98px){
  .section{padding:48px 0;}
  .mini-hero{padding:36px 0 40px;}
  .mini-hero h1{font-size:26px;}
  .cta-wrap{padding-bottom:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-accent,.cta-actions .btn-ghost-light{width:100%;}
  .faq-acc .accordion-button{font-size:15px;padding:15px 18px;}
  .faq-acc .accordion-body{padding:14px 18px 18px;}
}

/* roulang page: article */
:root{
  --c-primary:#13538F;
  --c-primary-dark:#0C3A6B;
  --c-primary-50:#EEF4FB;
  --c-primary-100:#DCE9F6;
  --c-accent:#F2703A;
  --c-success:#12A67C;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F7FA;
  --c-text:#0F1B2A;
  --c-text-2:#4A5A6E;
  --c-text-3:#8695A8;
  --c-border:#E3E9F0;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(15,27,42,.04), 0 8px 24px rgba(19,83,143,.07);
  --sh-2:0 12px 32px rgba(19,83,143,.14);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;

  --bs-primary:#13538F;
  --bs-primary-rgb:19,83,143;
  --bs-body-color:#0F1B2A;
  --bs-body-bg:#FFFFFF;
  --bs-font-sans-serif:var(--font-cn);
  --bs-border-color:#E3E9F0;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-link-color:#13538F;
  --bs-link-hover-color:#0C3A6B;
  --bs-link-decoration:none;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;height:auto;display:block;}
button,input{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(19,83,143,.20);border-radius:var(--r-btn);}
.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto;}
@media (min-width:576px){.container{max-width:560px;}}
@media (min-width:768px){.container{max-width:740px;}}
@media (min-width:992px){.container{max-width:980px;}}
@media (min-width:1200px){.container{max-width:1140px;}}
@media (min-width:1400px){.container{max-width:1240px;}}

/* ============ 顶部说明条（非吸顶） ============ */
.page-note{background:var(--c-primary-dark);color:rgba(255,255,255,.85);font-size:13px;}
.page-note .note-inner{display:flex;align-items:center;gap:10px;min-height:42px;flex-wrap:wrap;}
.page-note .dot{width:8px;height:8px;border-radius:50%;background:var(--c-success);flex:none;}
.page-note .note-strong{color:#fff;font-weight:600;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:17px;letter-spacing:-.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-top{font-family:var(--font-num);font-size:15px;font-weight:700;letter-spacing:-.02em;color:var(--c-primary-dark);}
.brand-bottom{font-size:12px;color:var(--c-text-2);letter-spacing:-.02em;}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);padding:6px 0;white-space:nowrap;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a.active{color:var(--c-primary);}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.cmd-search{
  position:relative;display:flex;align-items:center;
  width:240px;height:40px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  background:#fff;padding:0 10px 0 34px;transition:border-color .2s ease,box-shadow .2s ease;
}
.cmd-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(19,83,143,.12);}
.cmd-search svg{position:absolute;left:11px;width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:1.8;}
.cmd-search input{
  border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--c-text);
}
.cmd-search input::placeholder{color:var(--c-text-3);}
.cmd-search kbd{
  flex:none;background:#F1F5F9;color:var(--c-text-3);border-radius:6px;
  font-family:var(--font-num);font-size:12px;padding:2px 7px;line-height:1.4;
}
.nav-quick{font-size:14px;font-weight:500;color:var(--c-text-2);white-space:nowrap;}
.nav-quick:hover{color:var(--c-primary);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;text-decoration:none;border:1px solid transparent;transition:all .2s ease;}
.btn-primary-rl{
  background:var(--c-primary);color:#fff;height:44px;padding:0 22px;font-size:15px;
}
.btn-primary-rl:hover{background:#0F4780;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary-rl:active{transform:translateY(0);}
.btn-accent-rl{background:var(--c-accent);color:#fff;height:44px;padding:0 22px;font-size:15px;}
.btn-accent-rl:hover{background:#DE5F2C;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost-rl{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary-100);height:44px;padding:0 22px;font-size:15px;}
.btn-ghost-rl:hover{background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary-dark);}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);height:44px;padding:0 22px;font-size:15px;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.nav-cta{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary-dark);}
.offcanvas{width:300px;}
.offcanvas-header{border-bottom:1px solid var(--c-border);padding:18px 20px;}
.offcanvas-title{font-size:16px;font-weight:600;color:var(--c-primary-dark);}
.offcanvas-body{padding:8px 0 0;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 20px;font-size:16px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-border);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);background:var(--c-primary-50);}
.drawer-foot{padding:18px 20px 26px;border-top:1px solid var(--c-border);margin-top:12px;}
.drawer-foot .btn{width:100%;}

/* ============ 文章头部 ============ */
.article-hero{
  padding:40px 0 32px;
  background:linear-gradient(180deg,#F5F9FD 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--c-border);
}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C3CDD9;}
.crumb .current{color:var(--c-text-2);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-cat{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-50);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;}
.article-cat .pulse{width:6px;height:6px;border-radius:50%;background:var(--c-success);}
h1.article-title{
  font-size:clamp(26px,3.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em;
  color:var(--c-text);margin:0 0 18px;max-width:900px;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--c-text-3);}
.article-meta .dot-sep{color:#C3CDD9;}
.article-meta .badge-soft{background:var(--c-primary-50);color:var(--c-primary);border-radius:var(--r-pill);padding:3px 10px;font-size:12px;font-weight:600;}

/* ============ 正文区 ============ */
.article-main{padding:56px 0 72px;}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:start;}
.article-body{
  max-width:780px;font-size:16px;line-height:1.9;color:#26374A;overflow-wrap:break-word;overflow-x:auto;
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:24px;font-weight:600;line-height:1.45;color:var(--c-text);
  margin:40px 0 16px;padding-left:14px;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--c-text);margin:28px 0 12px;line-height:1.5;}
.article-body h4{font-size:17px;font-weight:600;color:var(--c-text);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body ul>li::marker{color:var(--c-primary);}
.article-body ol>li::marker{color:var(--c-primary);font-weight:600;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--c-bg-alt);
  border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:22px auto;background:var(--c-primary-50);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;min-width:520px;}
.article-body th{background:#EEF4FB;font-weight:600;color:var(--c-text);}
.article-body th,.article-body td{border-bottom:1px solid var(--c-border);padding:12px 14px;text-align:left;}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(19,83,143,.32);}
.article-body a:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary-dark);}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:32px 0;}
.article-body strong{font-weight:600;color:var(--c-text);}

.article-empty{
  max-width:780px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:48px 32px;text-align:center;
}
.article-empty h2{font-size:22px;font-weight:600;margin:0 0 12px;color:var(--c-text);}
.article-empty p{font-size:15px;color:var(--c-text-2);margin:0 0 22px;line-height:1.8;}

/* 目录 */
.toc-aside{position:sticky;top:96px;}
.toc-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px;}
.toc-card h4{font-size:14px;font-weight:600;color:var(--c-text);margin:0 0 12px;letter-spacing:.02em;}
.toc-card ul{list-style:none;margin:0;padding:0;}
.toc-card li{margin-bottom:8px;}
.toc-card a{
  display:block;font-size:13px;line-height:1.6;color:var(--c-text-2);
  padding:4px 0 4px 10px;border-left:2px solid transparent;
}
.toc-card a:hover{color:var(--c-primary);}
.toc-card a.is-active{color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);}
.toc-card li.lv-3 a{padding-left:22px;font-size:12.5px;color:var(--c-text-3);}
.toc-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--c-border);font-size:12.5px;color:var(--c-text-3);line-height:1.7;}

/* ============ 文末 ============ */
.section-divider{border-top:1px solid var(--c-border);margin:56px 0 40px;}
.rec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.rec-head h2{font-size:clamp(20px,2.2vw,24px);font-weight:600;margin:0;letter-spacing:-.01em;}
.rec-head .link-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.rec-head .link-more .arrow{transition:transform .2s ease;}
.rec-head .link-more:hover .arrow{transform:translateX(3px);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;height:100%;
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-card .thumb{position:relative;aspect-ratio:16/9;background:var(--c-primary-50);overflow:hidden;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.3,1);}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .badge{
  position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--c-primary);
  font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:3px 10px;
}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-card h3{
  font-size:16px;font-weight:600;line-height:1.55;color:var(--c-text);margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.post-card:hover h3{color:var(--c-primary);}
.post-card p{
  font-size:14px;line-height:1.7;color:var(--c-text-2);margin:0 0 14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);}
.post-card .meta .go{margin-left:auto;color:var(--c-primary);font-weight:600;}

.back-row{margin-top:32px;display:flex;justify-content:center;}
.prevnext-wrap{margin-top:48px;}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.pn-item{
  display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pn-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary-100);}
.pn-item .pn-label{font-size:12.5px;color:var(--c-text-3);}
.pn-item .pn-title{font-size:15.5px;font-weight:600;color:var(--c-text);}
.pn-item:hover .pn-title{color:var(--c-primary);}
.pn-item.right{text-align:right;}

/* ============ CTA 条 ============ */
.cta-band-wrap{padding:0 0 80px;}
.cta-band{
  position:relative;overflow:hidden;background:var(--c-primary-dark);border-radius:var(--r-lg);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.05);
}
.cta-band .cta-text{position:relative;z-index:1;}
.cta-band h2{font-size:24px;font-weight:600;color:#fff;margin:0 0 8px;letter-spacing:-.01em;}
.cta-band p{font-size:14px;color:rgba(255,255,255,.78);margin:0;}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:#F1F5F9;padding-top:64px;border-top:1px solid var(--c-border);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand .fb-name{font-size:17px;font-weight:700;color:var(--c-primary-dark);letter-spacing:-.02em;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--c-text-2);margin:0;max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:16px;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{margin-bottom:2px;}
.footer-list a,.footer-list span{display:inline-block;font-size:14px;line-height:2.1;color:var(--c-text-2);transition:color .2s ease,transform .2s ease;}
.footer-list a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--c-border);padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-shell{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc-aside{display:none;}
}
@media (max-width:991.98px){
  .nav-wrap{height:60px;}
  .brand-bottom{font-size:11.5px;}
  .article-hero{padding:32px 0 26px;}
  .article-main{padding:44px 0 60px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:30px 26px;}
}
@media (max-width:767.98px){
  .crumb .current{max-width:100%;}
  .prevnext{grid-template-columns:1fr;}
  .pn-item.right{text-align:left;}
  .article-body h2{font-size:21px;margin:34px 0 14px;}
  .article-body h3{font-size:18px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
}
@media (max-width:575.98px){
  .container{padding-right:16px;padding-left:16px;}
  h1.article-title{font-size:26px;}
  .article-main{padding:36px 0 52px;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .article-empty{padding:36px 20px;}
  .cta-band-wrap{padding-bottom:56px;}
  .cta-band h2{font-size:20px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#13538F;
  --c-primary-dark:#0C3A6B;
  --c-primary-hover:#0F4576;
  --c-primary-50:#EEF4FB;
  --c-primary-100:#DCE9F6;
  --c-accent:#F2703A;
  --c-success:#12A67C;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F7FA;
  --c-text:#0F1B2A;
  --c-text-2:#4A5A6E;
  --c-text-3:#8695A8;
  --c-border:#E3E9F0;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04),0 8px 24px rgba(19,83,143,.07);
  --sh-2:0 12px 32px rgba(19,83,143,.14);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;

  --bs-primary:#13538F;
  --bs-primary-rgb:19,83,143;
  --bs-body-color:#0F1B2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E3E9F0;
  --bs-border-radius:14px;
  --bs-link-color:#13538F;
  --bs-link-hover-color:#0C3A6B;
  --bs-font-sans-serif:var(--font-cn);
  --bs-body-font-family:var(--font-cn);
  --bs-body-line-height:1.8;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--c-text);font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto;}
@media (min-width:1200px){.container{max-width:1140px;}}
@media (min-width:1400px){.container{max-width:1240px;}}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(19,83,143,.20);border-radius:6px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
}
.nav-shell{display:flex;align-items:center;gap:22px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;text-decoration:none;}
.brand:hover{color:inherit;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.brand-mark svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-top{font-size:17px;font-weight:700;letter-spacing:-.02em;color:var(--c-text);}
.brand-sub{font-size:12px;letter-spacing:-.02em;color:var(--c-text-2);}
.main-nav{display:flex;align-items:center;gap:22px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 1px;white-space:nowrap;
}
.main-nav a::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 .25s ease;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 10px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-btn);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search svg{width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:1.8;flex:none;}
.command-search input{
  flex:1;min-width:0;border:none;outline:none;background:transparent;
  font-size:14px;color:var(--c-text);font-family:inherit;
}
.command-search input::placeholder{color:var(--c-text-3);}
.command-search kbd{
  font-family:var(--font-num);font-size:11px;color:var(--c-text-2);
  background:var(--c-primary-50);border:none;border-radius:6px;padding:2px 6px;
}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(19,83,143,.12);}
.nav-quick{font-size:14px;font-weight:500;color:var(--c-text-2);}
.nav-quick:hover{color:var(--c-primary);}
.nav-toggle{
  width:44px;height:44px;border:none;background:transparent;border-radius:10px;
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:var(--c-text);transition:transform .25s ease,opacity .25s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (max-width:1199.98px){.command-search{width:200px;}}
@media (max-width:991.98px){
  .nav-shell{height:60px;gap:12px;}
  .brand-mark{width:34px;height:34px;}
  .brand-top{font-size:15px;}
  .brand-sub{font-size:11px;}
  .nav-toggle{display:flex;}
}
.nav-drawer{
  position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100%;z-index:1080;
  background:#fff;display:flex;flex-direction:column;padding:20px;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  box-shadow:-8px 0 32px rgba(15,27,42,.12);overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-title{font-size:15px;font-weight:600;color:var(--c-text-2);}
.drawer-close{
  width:36px;height:36px;border:none;background:var(--c-primary-50);border-radius:10px;
  font-size:20px;line-height:1;color:var(--c-text-2);cursor:pointer;
}
.drawer-nav a{
  display:block;font-size:16px;line-height:48px;color:var(--c-text);
  border-bottom:1px solid var(--c-border);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600;}
.drawer-cta{margin-top:24px;}
.drawer-mask{
  position:fixed;inset:0;z-index:1070;background:rgba(15,27,42,.42);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ---------- buttons ---------- */
.m-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.m-btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.m-btn-primary:hover{background:var(--c-primary-hover);border-color:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.m-btn-primary:active{transform:translateY(0);box-shadow:none;}
.m-btn-outline{background:#fff;border-color:var(--c-primary-100);color:var(--c-primary);}
.m-btn-outline:hover{border-color:var(--c-primary);background:var(--c-primary-50);color:var(--c-primary-dark);transform:translateY(-1px);}
.m-btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff;}
.m-btn-accent:hover{background:#DE5F2B;border-color:#DE5F2B;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.m-btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff;}
.m-btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-1px);}
.m-btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link span{transition:transform .2s ease;}
.text-link:hover span{transform:translateX(3px);}

/* ---------- mini hero ---------- */
.mini-hero{
  position:relative;overflow:hidden;
  padding:52px 0 44px;
  background:linear-gradient(180deg,#F5F9FD 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--c-border);
}
.mini-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.85;
  background-image:linear-gradient(rgba(19,83,143,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(19,83,143,.07) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.mini-hero .container{position:relative;z-index:1;}
.breadcrumb-nav{font-size:13px;color:var(--c-text-3);margin-bottom:16px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.breadcrumb-nav a{color:var(--c-text-3);}
.breadcrumb-nav a:hover{color:var(--c-primary);}
.breadcrumb-nav .sep{color:#C6D2DF;}
.breadcrumb-nav .current{color:var(--c-text-2);}
.mini-hero h1{font-size:clamp(26px,3.6vw,40px);font-weight:700;line-height:1.28;max-width:820px;}
.mini-hero .hero-desc{margin-top:16px;font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:780px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-border);
  font-size:13px;color:var(--c-text-2);box-shadow:0 1px 2px rgba(15,27,42,.03);
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-success);display:block;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--c-bg-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(22px,2.8vw,32px);font-weight:600;line-height:1.35;}
.section-head p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-50);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;
}
@media (max-width:991.98px){.section{padding:64px 0;}}
@media (max-width:767.98px){.section{padding:48px 0;}.mini-hero{padding:40px 0 36px;}}

/* ---------- compare table ---------- */
.table-wrap{position:relative;}
.table-wrap::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:30px;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,0),#fff);opacity:0;transition:opacity .2s ease;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.cmp-table{
  width:100%;border-collapse:separate;border-spacing:0;background:#fff;
  border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
}
.cmp-table th{
  background:var(--c-primary-50);color:var(--c-primary-dark);
  font-size:14px;font-weight:600;text-align:left;padding:15px 18px;white-space:nowrap;
}
.cmp-table td{
  font-size:14px;color:var(--c-text-2);padding:15px 18px;
  border-top:1px solid var(--c-border);vertical-align:top;
}
.cmp-table tbody tr{transition:background .2s ease;}
.cmp-table tbody tr:hover{background:#F7FAFD;}
.cmp-table td strong{color:var(--c-text);font-weight:600;}
.cell-badge{
  display:inline-block;font-size:12px;font-weight:600;line-height:1.6;
  padding:1px 10px;border-radius:var(--r-pill);background:var(--c-primary-50);color:var(--c-primary);
}
.cell-badge.warn{background:#FEF1EA;color:#C4531F;}
@media (max-width:767.98px){
  .table-wrap::after{opacity:1;}
  .cmp-table{min-width:660px;}
}

/* ---------- side card ---------- */
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-primary-50);}
.side-card-body{padding:24px;}
.side-card-body h3{font-size:17px;font-weight:600;margin-bottom:10px;}
.side-card-body .side-note{font-size:13px;color:var(--c-text-3);line-height:1.75;margin-bottom:16px;}
.side-list li{
  position:relative;padding-left:22px;font-size:14px;line-height:1.75;
  color:var(--c-text-2);margin-bottom:12px;
}
.side-list li:last-child{margin-bottom:0;}
.side-list li::before{
  content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:50%;
  background:var(--c-primary-100);border:2px solid var(--c-primary);
}
.side-list li b{color:var(--c-text);font-weight:600;}

/* ---------- dark band ---------- */
.band-dark{
  position:relative;overflow:hidden;background:var(--c-primary-dark);
  border-radius:var(--r-lg);padding:48px;color:#fff;
}
.band-dark::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:30px 30px;
}
.band-dark .band-inner{position:relative;z-index:1;}
.band-dark h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.band-dark .band-desc{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.76);max-width:720px;}
.band-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:34px;}
.band-item{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);padding:22px;transition:background .25s ease,transform .25s ease;
}
.band-item:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.band-item h3{color:#fff;font-size:16px;font-weight:600;margin-bottom:8px;}
.band-item p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.74);}
@media (max-width:767.98px){
  .band-dark{padding:32px 22px;}
  .band-grid{grid-template-columns:1fr;gap:12px;}
}

/* ---------- steps ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.steps::before{
  content:"";position:absolute;left:12.5%;right:12.5%;top:17px;
  border-top:1px dashed #C9D8E8;z-index:0;
}
.step{position:relative;z-index:1;}
.step-dot{
  width:34px;height:34px;margin:0 auto 18px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-family:var(--font-num);
  font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 6px #fff;
}
.step-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px;height:100%;text-align:center;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-card h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.step-card p{font-size:14px;line-height:1.75;color:var(--c-text-2);}
@media (max-width:991.98px){
  .steps{grid-template-columns:1fr;gap:16px;}
  .steps::before{left:17px;right:auto;top:17px;bottom:17px;border-top:none;border-left:1px dashed #C9D8E8;}
  .step{display:grid;grid-template-columns:34px 1fr;gap:16px;align-items:start;}
  .step-dot{margin:0;box-shadow:0 0 0 6px #fff;}
  .step-card{text-align:left;}
}

/* ---------- habit image block ---------- */
.habit-img{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-border);
  box-shadow:var(--sh-1);background:var(--c-primary-50);
}
.habit-img img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.habit-list li{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--c-border);
}
.habit-list li:first-child{padding-top:0;}
.habit-list li:last-child{border-bottom:none;padding-bottom:0;}
.habit-idx{
  flex:none;width:32px;height:32px;border-radius:10px;background:var(--c-primary-50);
  color:var(--c-primary);font-family:var(--font-num);font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.habit-list h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.habit-list p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-text);
  transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--c-primary-50);color:var(--c-primary-dark);}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-accent);
  transform:scaleY(0);transform-origin:center;transition:transform .25s ease;
}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-icon{position:relative;flex:none;width:16px;height:16px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:transform .25s ease;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2);}
@media (max-width:767.98px){
  .faq-item summary{font-size:15px;padding:14px 18px;line-height:1.5;}
  .faq-body{padding:0 18px 18px;font-size:14px;}
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-primary-dark);border-radius:var(--r-lg);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:26px 26px;
}
.cta-band .cta-text{position:relative;z-index:1;max-width:640px;}
.cta-band h2{color:#fff;font-size:clamp(20px,2.2vw,24px);font-weight:600;line-height:1.4;}
.cta-band p{margin-top:10px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.76);}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:767.98px){
  .cta-band{padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .m-btn{flex:1 1 100%;}
}

/* ---------- footer ---------- */
.site-footer{background:#F1F5F9;padding-top:64px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px;}
.footer-brand .fb-name{font-size:17px;font-weight:700;letter-spacing:-.02em;color:var(--c-text);margin-bottom:12px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-text-2);max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:14px;}
.footer-list li{font-size:14px;line-height:2.1;color:var(--c-text-2);}
.footer-list a{color:var(--c-text-2);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-list a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-list span{color:var(--c-text-3);}
.footer-bottom{
  border-top:1px solid var(--c-border);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --c-primary:#13538F;
  --c-primary-dark:#0C3A6B;
  --c-primary-50:#EEF4FB;
  --c-primary-100:#DCE9F6;
  --c-accent:#F2703A;
  --c-success:#12A67C;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F7FA;
  --c-text:#0F1B2A;
  --c-text-2:#4A5A6E;
  --c-text-3:#8695A8;
  --c-border:#E3E9F0;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04), 0 8px 24px rgba(19,83,143,.07);
  --sh-2:0 12px 32px rgba(19,83,143,.14);
  --sec-pad:88px;

  --bs-primary:#13538F;
  --bs-primary-rgb:19,83,143;
  --bs-body-color:#0F1B2A;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-border-color:#E3E9F0;
  --bs-border-radius:10px;
  --bs-link-color:#13538F;
  --bs-link-hover-color:#0C3A6B;
  --bs-body-bg:#FFFFFF;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--c-primary-50);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--c-text);font-weight:700;line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(19,83,143,.20);border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.num{font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15;letter-spacing:-.02em;flex-shrink:0;}
.brand-mark{font-size:17px;font-weight:700;color:var(--c-primary-dark);}
.brand-name{font-size:12px;font-weight:500;color:var(--c-text-2);letter-spacing:0;}
.brand:hover{text-decoration:none;}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::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 center;transition:transform .25s ease;
}
.main-nav a:hover{color:var(--c-primary);text-decoration:none;}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after,.main-nav a:hover::after{transform:scaleX(1);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:14px;flex-shrink:0;}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:236px;height:40px;padding:0 10px 0 12px;
  border:1px solid var(--c-border);border-radius:var(--r-btn);
  background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(19,83,143,.12);}
.command-search svg{width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:1.8;flex-shrink:0;}
.command-search input{border:0;outline:none;background:transparent;font-size:14px;color:var(--c-text);width:100%;min-width:0;}
.command-search input::placeholder{color:var(--c-text-3);}
.command-search kbd{
  font-family:"Inter",system-ui,sans-serif;font-size:11px;color:var(--c-text-3);
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:6px;
  padding:1px 6px;line-height:1.6;flex-shrink:0;
}
.quick-link{font-size:14px;font-weight:500;color:var(--c-text-2);white-space:nowrap;}
.quick-link:hover{color:var(--c-primary);text-decoration:none;}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;white-space:nowrap;
}
.btn-cta:hover{background:#0F4272;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-cta:active{transform:translateY(0);}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  background:#fff;position:relative;cursor:pointer;
}
.menu-toggle span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--c-primary-dark);
  transition:transform .25s ease,opacity .2s ease;
}
.menu-toggle span:nth-child(1){top:14px;}
.menu-toggle span:nth-child(2){top:20px;}
.menu-toggle span:nth-child(3){top:26px;}

/* ============ 抽屉导航 ============ */
.nav-drawer{width:300px;}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--c-border);padding:18px 20px;}
.drawer-brand{font-size:15px;font-weight:700;color:var(--c-primary-dark);letter-spacing:-.02em;}
.nav-drawer .offcanvas-body{padding:12px 20px 24px;display:flex;flex-direction:column;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:16px;color:var(--c-text);line-height:48px;border-bottom:1px solid var(--c-border);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600;}
.drawer-cta{margin-top:auto;width:100%;}

/* ============ mini hero ============ */
.mini-hero{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  background:linear-gradient(180deg,#F5F9FD 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--c-border);
}
.mini-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(19,83,143,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(19,83,143,.055) 1px,transparent 1px);
  background-size:34px 34px;
}
.mini-hero .container{position:relative;z-index:1;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);text-decoration:none;}
.crumb .sep{color:#C6D2E0;}
.crumb .cur{color:var(--c-text-2);}
.mini-hero h1{font-size:clamp(26px,4.2vw,40px);line-height:1.28;font-weight:700;max-width:900px;}
.hero-sub{margin-top:16px;font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:820px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--c-primary);
  background:rgba(19,83,143,.08);border-radius:var(--r-pill);padding:5px 14px;
}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--c-success);}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0;}
.section.alt{background:var(--c-bg-alt);}
.section-head{margin-bottom:40px;max-width:820px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-50);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,2.8vw,32px);line-height:1.35;}
.section-head p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ============ 数据统计条 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-item{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stat-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary-100);}
.stat-label{font-size:13px;color:var(--c-text-3);}
.stat-value{display:flex;align-items:baseline;gap:4px;margin-top:12px;}
.stat-value b{font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:40px;font-weight:700;color:var(--c-primary);line-height:1;letter-spacing:-.02em;}
.stat-value span{font-size:15px;font-weight:600;color:var(--c-text-2);}
.stat-note{margin-top:12px;font-size:13px;line-height:1.7;color:var(--c-text-2);}
.stat-bar{margin-top:14px;height:6px;border-radius:var(--r-pill);background:var(--c-primary-50);overflow:hidden;}
.stat-bar i{display:block;height:100%;border-radius:var(--r-pill);background:var(--c-primary);}
.stat-bar i.accent{background:var(--c-accent);}

/* ============ 卡片墙 ============ */
.wall-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;}
.wall-col{display:flex;flex-direction:column;gap:20px;}
.wall-col.shift{margin-top:36px;}
.wall-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.wall-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.wall-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-50);}
.wall-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.3,1);}
.wall-card:hover .wall-media img{transform:scale(1.03);}
.wall-badge{
  position:absolute;left:12px;top:12px;
  font-size:12px;font-weight:600;color:var(--c-primary);
  background:rgba(255,255,255,.92);border-radius:var(--r-pill);padding:4px 12px;
}
.wall-body{padding:22px 24px 24px;}
.wall-body h3{font-size:17px;line-height:1.5;}
.wall-body p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-text-2);}
.wall-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--c-border);
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);flex-wrap:wrap;
}
.wall-meta .sep{color:#C6D2E0;}
.wall-meta .arrow{margin-left:auto;color:var(--c-primary);font-weight:600;transition:transform .25s ease;}
.wall-card:hover .wall-meta .arrow{transform:translateX(3px);}

/* ============ 口径说明 ============ */
.caliber{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.caliber-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.caliber-card h3{font-size:17px;margin-bottom:16px;}
.caliber-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-border);
  font-size:14px;line-height:1.8;color:var(--c-text-2);
}
.caliber-list li:last-child{border-bottom:0;padding-bottom:0;}
.caliber-list .idx{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.caliber-list strong{color:var(--c-text);font-weight:600;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;
}
.faq-acc .accordion-button{
  position:relative;background:#fff;color:var(--c-text);
  font-size:16px;font-weight:600;line-height:1.6;
  padding:20px 56px 20px 22px;border:0;box-shadow:none;width:100%;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:#fff;}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-accent);opacity:0;transition:opacity .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(19,83,143,.20);}
.q-icon{position:absolute;right:22px;top:50%;width:16px;height:16px;margin-top:-8px;}
.q-icon::before,.q-icon::after{
  content:"";position:absolute;left:0;top:7px;width:16px;height:2px;border-radius:2px;
  background:var(--c-primary);transition:transform .25s ease;
}
.q-icon::after{transform:rotate(90deg);}
.faq-acc .accordion-button:not(.collapsed) .q-icon::after{transform:rotate(0deg);}
.faq-acc .accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ============ CTA ============ */
.cta-block{
  position:relative;overflow:hidden;background:var(--c-primary-dark);
  border-radius:var(--r-lg);padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-block::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:28px 28px;
}
.cta-text{position:relative;z-index:1;max-width:640px;}
.cta-text h2{color:#fff;font-size:clamp(20px,2.4vw,26px);font-weight:600;line-height:1.4;}
.cta-text p{margin-top:12px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-shrink:0;}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;white-space:nowrap;
}
.btn-accent:hover{background:#DB5F2C;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 12px 28px rgba(242,112,58,.32);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);
  font-size:15px;font-weight:600;transition:background .2s ease,border-color .2s ease,transform .2s ease;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff;text-decoration:none;transform:translateY(-1px);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:#fff;color:var(--c-primary);border:1px solid var(--c-primary-100);
  font-size:15px;font-weight:600;transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-outline:hover{background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary-dark);text-decoration:none;transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{background:#F1F5F9;padding-top:64px;border-top:1px solid var(--c-border);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px;}
.fb-name{font-size:16px;font-weight:700;color:var(--c-primary-dark);letter-spacing:-.02em;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--c-text-2);max-width:330px;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:16px;}
.footer-list li{margin-bottom:2px;}
.footer-list a,.footer-list span{
  display:inline-block;font-size:14px;line-height:2.1;color:var(--c-text-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-list a:hover{color:var(--c-primary);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  border-top:1px solid var(--c-border);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .command-search{width:200px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  .main-nav,.command-search,.quick-link,.site-header .btn-cta{display:none;}
  .menu-toggle{display:block;}
  .header-inner{height:60px;}
  .brand-mark{font-size:15px;}
  :root{--sec-pad:64px;}
  .mini-hero{padding:48px 0 44px;}
  .wall-grid{grid-template-columns:1fr;gap:20px;}
  .wall-col.shift{margin-top:0;}
  .caliber{grid-template-columns:1fr;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:36px 28px;gap:24px;}
  .cta-actions{flex-wrap:wrap;}
}
@media (max-width:767px){
  :root{--sec-pad:48px;}
  .container{padding:0 18px;}
  .stat-grid{grid-template-columns:1fr;gap:16px;}
  .stat-value b{font-size:34px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .menu-toggle{display:block;}
  .btn-cta,.btn-accent,.btn-ghost,.btn-outline{width:100%;}
  .cta-actions{width:100%;flex-direction:column;gap:10px;}
  .hero-tags{gap:8px;}
}
@media (max-width:575px){
  .mini-hero{padding:36px 0 34px;}
  .mini-hero h1{font-size:26px;}
  .section-head h2{font-size:22px;}
  .wall-body{padding:18px 18px 20px;}
  .caliber-card{padding:20px 18px;}
  .faq-acc .accordion-button{font-size:15px;padding:18px 50px 18px 18px;}
  .cta-block{padding:30px 20px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#13538F;
  --c-primary-dark:#0C3A6B;
  --c-primary-50:#EEF4FB;
  --c-primary-100:#DCE9F6;
  --c-accent:#F2703A;
  --c-success:#12A67C;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F7FA;
  --c-text:#0F1B2A;
  --c-text-2:#4A5A6E;
  --c-text-3:#8695A8;
  --c-border:#E3E9F0;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(15,27,42,.04), 0 8px 24px rgba(19,83,143,.07);
  --shadow-2:0 12px 32px rgba(19,83,143,.14);

  --bs-primary:#13538F;
  --bs-body-color:#0F1B2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E3E9F0;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-border-radius-sm:10px;
  --bs-link-color:#13538F;
  --bs-link-hover-color:#0C3A6B;
  --bs-link-decoration:underline;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-accordion-active-bg:#EEF4FB;
  --bs-accordion-active-color:#0C3A6B;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-border-color:#E3E9F0;
  --bs-accordion-border-radius:14px;
  --bs-accordion-inner-border-radius:14px;
  --bs-accordion-btn-color:#0F1B2A;
  --bs-accordion-body-padding-x:20px;
  --bs-accordion-body-padding-y:16px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{letter-spacing:-.01em;color:var(--c-text);margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(19,83,143,.20);border-radius:8px;}

.container{width:100%;padding-right:16px;padding-left:16px;margin-right:auto;margin-left:auto;}
@media (min-width:576px){.container{max-width:540px;}}
@media (min-width:768px){.container{max-width:720px;}}
@media (min-width:992px){.container{max-width:960px;}}
@media (min-width:1200px) and (max-width:1399.98px){.container{max-width:1140px;}}
@media (min-width:1400px){.container{max-width:1240px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
}
.nav-shell{display:flex;align-items:center;gap:22px;height:68px;}
.brand{display:flex;flex-direction:column;line-height:1.15;letter-spacing:-.02em;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{font-size:17px;font-weight:700;color:var(--c-primary-dark);}
.brand-sub{font-size:12px;font-weight:500;color:var(--c-text-3);letter-spacing:0;}
.main-nav{display:flex;align-items:center;gap:22px;flex:1 1 auto;margin-left:6px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:8px 0;white-space:nowrap;
}
.main-nav a:hover{color:var(--c-primary);text-decoration:none;}
.main-nav a.active{color:var(--c-primary-dark);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:0;bottom:2px;width:22px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.cmd-search{position:relative;display:flex;align-items:center;width:238px;}
.cmd-search svg{position:absolute;left:12px;width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:2;stroke-linecap:round;}
.cmd-search input{
  width:100%;height:40px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  padding:0 42px 0 36px;font-size:14px;color:var(--c-text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cmd-search input::placeholder{color:var(--c-text-3);}
.cmd-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(19,83,143,.12);}
.cmd-search kbd{
  position:absolute;right:10px;font-family:inherit;font-size:11px;color:var(--c-text-3);
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:6px;padding:1px 6px;
}
.nav-link-quick{font-size:14px;font-weight:500;color:var(--c-text-2);white-space:nowrap;}
.nav-link-quick:hover{color:var(--c-primary);text-decoration:none;}
.nav-toggle{
  display:none;width:40px;height:40px;margin-left:auto;padding:0;
  border:1px solid var(--c-border);border-radius:var(--r-btn);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:.25s;}
.nav-toggle:hover{border-color:var(--c-primary-100);}

/* ============ 按钮 ============ */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,box-shadow .25s ease,transform .2s ease,border-color .2s ease,color .2s ease;
}
.btn-c:hover{text-decoration:none;transform:translateY(-1px);}
.btn-c:active{transform:translateY(0);}
.btn-primary-c{background:var(--c-primary);color:#fff;}
.btn-primary-c:hover{background:#0F4679;color:#fff;box-shadow:var(--shadow-2);}
.btn-accent-c{background:var(--c-accent);color:#fff;}
.btn-accent-c:hover{background:#DE5D28;color:#fff;box-shadow:0 12px 28px rgba(242,112,58,.28);}
.btn-outline-c{background:#fff;border-color:var(--c-primary-100);color:var(--c-primary);}
.btn-outline-c:hover{border-color:var(--c-primary);background:var(--c-primary-50);color:var(--c-primary-dark);}
.btn-ghost-c{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost-c:hover{background:#fff;border-color:#fff;color:var(--c-primary-dark);}
.btn-sm-c{height:40px;padding:0 16px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.text-link:hover{text-decoration:none;}
.text-link:hover svg{transform:translateX(3px);}

/* ============ 抽屉导航 ============ */
.drawer{width:300px !important;border-left:1px solid var(--c-border);}
.drawer .offcanvas-header{border-bottom:1px solid var(--c-border);padding:18px 20px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-primary-dark);letter-spacing:-.02em;}
.drawer .offcanvas-body{padding:12px 20px 100px;}
.drawer .offcanvas-body a{
  display:block;font-size:16px;line-height:48px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-border);text-decoration:none;
}
.drawer .offcanvas-body a:hover,.drawer .offcanvas-body a.active{color:var(--c-primary);}
.drawer-foot{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;
  background:#fff;border-top:1px solid var(--c-border);
}

/* ============ 迷你首屏 ============ */
.mini-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F5F9FD 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--c-border);
  padding:52px 0 48px;
}
.mini-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(90deg,rgba(19,83,143,.08) 1px,transparent 1px),
                   linear-gradient(0deg,rgba(19,83,143,.08) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 82%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 82%);
}
.mini-hero .container{position:relative;z-index:1;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);text-decoration:none;}
.crumb span{color:var(--c-text-3);}
.crumb .cur{color:var(--c-text-2);}
.mini-hero h1{font-size:clamp(26px,4.2vw,40px);font-weight:700;line-height:1.28;margin:0 0 16px;max-width:900px;}
.mini-lead{font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:820px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags span{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;background:var(--c-primary-50);border:1px solid var(--c-primary-100);
  color:var(--c-primary-dark);font-size:13px;font-weight:500;
}

/* ============ 通用板块 ============ */
.sec{padding:88px 0;}
.sec-alt{background:var(--c-bg-alt);}
.sec-white{background:#fff;}
.sec-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.02em;
  color:var(--c-primary);background:var(--c-primary-50);border-radius:999px;
  padding:5px 14px;margin-bottom:16px;
}
.sec-head h2{font-size:clamp(22px,2.8vw,32px);font-weight:600;line-height:1.35;margin-bottom:12px;}
.sec-head p{font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ============ 图文交替 ============ */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-row + .split-row{margin-top:80px;}
.split-text h2{font-size:clamp(21px,2.4vw,28px);font-weight:600;line-height:1.38;margin-bottom:16px;}
.split-text p{font-size:16px;line-height:1.85;color:var(--c-text-2);}
.split-media{
  border-radius:var(--r-card);overflow:hidden;background:var(--c-primary-50);
  box-shadow:var(--shadow-1);
}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--c-primary-50);
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.split-media:hover img{transform:scale(1.03);}
.check-list{list-style:none;margin-top:20px;display:grid;gap:10px;}
.check-list li{
  position:relative;padding-left:24px;font-size:15px;line-height:1.8;color:var(--c-text-2);
}
.check-list li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary);opacity:.28;
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:15px;width:2px;height:2px;border-radius:50%;
  background:var(--c-primary);
}

/* ============ 排查流程 ============ */
.flow-list{list-style:none;display:grid;gap:16px;}
.flow-list li{
  display:flex;gap:20px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.flow-list li:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.flow-idx{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(19,83,143,.12);color:var(--c-primary-dark);
  font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
}
.flow-list h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px;}
.flow-list p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--c-border);border-radius:var(--r-card) !important;
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
}
.accordion-button{
  position:relative;width:100%;padding:18px 60px 18px 20px;
  font-size:16px;font-weight:600;color:var(--c-text);background:#fff;
  border:0;box-shadow:none !important;text-align:left;
}
.accordion-button::after{
  content:"";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--c-primary);
  background-image:none;transition:opacity .2s ease;
}
.accordion-button::before{
  content:"";position:absolute;right:27px;top:50%;transform:translateY(-50%);
  width:2px;height:16px;border-radius:2px;background:var(--c-primary);
  transition:opacity .2s ease;
}
.accordion-button[aria-expanded="true"]::before{opacity:0;}
.accordion-button[aria-expanded="true"]{
  color:var(--c-primary-dark);
  background:var(--c-primary-50);
  box-shadow:inset 3px 0 0 var(--c-accent) !important;
}
.accordion-button:not(.collapsed){color:var(--c-primary-dark);}
.accordion-body{padding:12px 20px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--c-primary-dark);color:#fff;
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 40px rgba(12,58,107,.18);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(90deg,#fff 1px,transparent 1px),
                   linear-gradient(0deg,#fff 1px,transparent 1px);
  background-size:36px 36px;
}
.cta-band h2{position:relative;z-index:1;color:#fff;font-size:24px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.cta-band p{position:relative;z-index:1;font-size:14px;line-height:1.75;color:rgba(255,255,255,.82);max-width:620px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{background:#F1F5F9;padding-top:64px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.fb-name{font-size:17px;font-weight:700;color:var(--c-primary-dark);letter-spacing:-.02em;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-text-2);max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:14px;}
.footer-list{list-style:none;display:grid;gap:2px;}
.footer-list li{font-size:14px;line-height:2.1;color:var(--c-text-2);}
.footer-list a{font-size:14px;color:var(--c-text-2);display:inline-block;transition:.2s ease;}
.footer-list a:hover{color:var(--c-primary);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  margin-top:48px;padding:20px 0 24px;border-top:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--c-text-3);flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .split-row{gap:40px;}
}
@media (max-width:991.98px){
  .main-nav,.cmd-search,.nav-link-quick{display:none;}
  .nav-tools{display:none;}
  .nav-toggle{display:flex;}
  .nav-shell{height:60px;gap:12px;}
  .brand-mark{font-size:15px;}
  .split-row{grid-template-columns:1fr;gap:28px;}
  .split-row + .split-row{margin-top:56px;}
  .split-media img{aspect-ratio:16/10;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .sec{padding:56px 0;}
  .mini-hero{padding:40px 0 36px;}
  .mini-lead{font-size:14px;}
  .sec-head{margin-bottom:32px;}
  .split-text p{font-size:15px;}
  .cta-band h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:575.98px){
  .sec{padding:48px 0;}
  .mini-hero h1{font-size:25px;}
  .hero-tags span{height:30px;font-size:12px;padding:0 12px;}
  .btn-c{height:44px;font-size:14px;}
  .cta-actions{flex-direction:column;gap:10px;}
  .cta-actions .btn-c{width:100%;}
  .flow-list li{padding:18px 18px;gap:14px;}
  .flow-idx{width:40px;height:40px;font-size:14px;}
  .accordion-button{font-size:15px;line-height:1.5;padding:16px 54px 16px 16px;}
  .accordion-button::after{right:18px;}
  .accordion-button::before{right:25px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}