/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --c-primary:#1063CE;
  --c-primary-dark:#0B4FA6;
  --c-primary-tint:#E7F0FE;
  --c-primary-line:#BBD5F5;
  --c-accent:#FF6A2B;
  --c-accent-tint:#FFF0E9;
  --c-text:#12181F;
  --c-text-2:#5A6672;
  --c-text-3:#8492A3;
  --c-line:#E4EAF1;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(18,40,80,.06);
  --sh-2:0 10px 28px rgba(18,40,80,.12);
  --t:200ms ease-out;
  --maxw:1200px;
}
/* ================= reset / base ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:64px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
time{font-variant-numeric:tabular-nums}
::selection{background:var(--c-primary-tint);color:var(--c-primary-dark)}
/* ================= 容器 / 栅格 ================= */
.grid-container{max-width:var(--maxw);padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
.section{padding:96px 0}
.section--alt{background:#fff}
.section--tight{padding:72px 0}
/* ================= 顶部细信息条 ================= */
.topbar{background:var(--c-primary-tint);border-bottom:1px solid #DCEAFB}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:9px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--c-primary-dark);
}
.topbar-inner span{display:inline-flex;align-items:center;gap:8px}
.topbar-inner i{font-size:12px}
.topbar-inner a{font-weight:600;color:var(--c-primary);transition:color var(--t)}
.topbar-inner a:hover{color:var(--c-primary-dark);text-decoration:underline}
/* ================= 导航 ================= */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(18,40,80,.08)}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 20px;height:72px;
  display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary),#3F8BE9);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;flex-shrink:0;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.2px;white-space:nowrap;color:var(--c-text)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  position:relative;padding:11px 13px;font-size:15px;font-weight:500;
  color:var(--c-text-2);border-radius:8px;transition:color var(--t),background var(--t);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform var(--t);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:var(--c-primary);font-weight:700}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.nav-cta{flex-shrink:0;margin-left:8px}
.nav-toggle{
  display:none;width:42px;height:42px;margin-left:auto;
  border:1px solid var(--c-line);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;cursor:pointer;transition:all var(--t);
}
.nav-toggle:hover{border-color:var(--c-primary-line);color:var(--c-primary);background:var(--c-primary-tint)}
.nav-toggle:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
/* 移动抽屉 */
.nav-mask{
  position:fixed;inset:0;background:rgba(18,24,31,.46);z-index:85;
  opacity:0;visibility:hidden;transition:opacity 240ms ease-out,visibility 240ms ease-out;
}
.nav-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:302px;max-width:86vw;
  background:#fff;z-index:90;padding:22px 20px 28px;
  transform:translateX(105%);transition:transform 260ms ease-out;
  box-shadow:-10px 0 34px rgba(18,40,80,.14);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-title{font-size:16px;font-weight:700}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all var(--t);
}
.drawer-close:hover{color:var(--c-primary);border-color:var(--c-primary-line);background:var(--c-primary-tint)}
.drawer-close:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.nav-drawer .drawer-link{
  padding:13px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2);
  transition:all var(--t);border:1px solid transparent;
}
.nav-drawer .drawer-link:hover{background:var(--c-primary-tint);color:var(--c-primary)}
.nav-drawer .drawer-link[aria-current="page"]{
  background:var(--c-primary-tint);color:var(--c-primary);font-weight:700;border-color:var(--c-primary-line);
}
.drawer-cta{margin-top:16px}
body.drawer-open{overflow:hidden}
/* ================= 按钮 / 链接 / 徽章 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  border:1.5px solid transparent;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;text-align:center;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:56px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(16,99,206,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-tint);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;filter:grayscale(.35);transform:none;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:14px;font-weight:600;transition:color var(--t);
}
.link-arrow::after{content:"\2192";transition:transform var(--t)}
.link-arrow:hover{color:var(--c-primary-dark)}
.link-arrow:hover::after{transform:translateX(3px)}
.link-arrow:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-primary-tint);color:var(--c-primary);
}
.badge--accent{background:var(--c-accent-tint);color:#D9501A}
/* ================= 板块标题 ================= */
.sec-head{margin-bottom:40px;max-width:720px}
.sec-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.3px;margin-bottom:12px}
.sec-head p{font-size:16px;color:var(--c-text-2);margin:0}
.sec-head--row{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;max-width:none;
}
.sec-head--row .sec-head-txt{max-width:680px}
/* ================= Hero ================= */
.hero{position:relative;background:#fff;padding:76px 0 92px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(16,99,206,.09) 1px,transparent 1px);
  background-size:24px 24px;
  -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));
}
.hero-grid{position:relative;z-index:1}
.hero-copy{max-width:620px;padding-right:12px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);
  font-size:13px;font-weight:600;
}
.hero h1{font-size:44px;line-height:1.24;font-weight:700;letter-spacing:-.6px;margin:20px 0 18px}
.hero-sub{font-size:17px;line-height:1.75;color:var(--c-text-2);margin-bottom:30px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-trust{display:flex;flex-wrap:wrap;gap:26px}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.hero-trust i{color:var(--c-primary);font-size:15px}
.hero-media{position:relative;padding-left:12px}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:16px;box-shadow:var(--sh-2);background:var(--c-primary-tint);
}
.hero-float{
  position:absolute;left:-22px;bottom:26px;
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:14px 20px;
}
.hero-float strong{font-size:26px;font-weight:700;color:var(--c-primary);line-height:1}
.hero-float span{font-size:13px;color:var(--c-text-2);line-height:1.4}
/* ================= 功能卡 ================= */
.feat-card{
  height:100%;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line)}
.feat-card--lead{border:1.5px solid var(--c-primary-line);background:linear-gradient(180deg,#F8FBFF,#fff)}
.feat-icon{
  width:48px;height:48px;border-radius:12px;
  background:var(--c-primary-tint);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;margin-bottom:18px;
}
.feat-card--lead .feat-icon{background:var(--c-primary);color:#fff}
.feat-card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.feat-card p{font-size:15px;color:var(--c-text-2);margin-bottom:18px;flex:1}
/* ================= 场景图文 ================= */
.scene-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  margin-bottom:76px;
}
.scene-row:last-child{margin-bottom:0}
.scene-row--reverse .scene-media{order:2}
.scene-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh-1);background:var(--c-primary-tint);
}
.scene-no{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-accent-tint);color:#D9501A;
  font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:14px;
}
.scene-copy h3{font-size:24px;font-weight:600;margin-bottom:14px;line-height:1.4}
.scene-copy p{font-size:16px;color:var(--c-text-2);margin-bottom:18px}
.scene-list{margin-bottom:20px}
.scene-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--c-text-2);margin-bottom:9px;
}
.scene-list i{color:var(--c-primary);font-size:13px;margin-top:7px}
/* ================= 资讯卡 ================= */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line)}
.news-card:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-tint)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-badge{
  position:absolute;left:12px;top:12px;padding:4px 12px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.95);
  color:var(--c-primary);font-size:12px;font-weight:600;
}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:17px;line-height:1.55;font-weight:600;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t);
}
.news-card:hover .news-body h3{color:var(--c-primary)}
.news-body p{
  font-size:14px;color:var(--c-text-2);margin-bottom:16px;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-line);padding-top:14px;
}
.news-meta i{font-size:12px}
.empty-state{
  padding:56px 24px;text-align:center;
  background:#fff;border:1px dashed var(--c-primary-line);border-radius:var(--r-card);
}
.empty-state i{font-size:30px;color:var(--c-primary-line);display:block;margin-bottom:14px}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:14px}
/* ================= 评价 / 数据条 ================= */
.voice-card{
  height:100%;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t);
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.voice-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:var(--c-primary-tint);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
}
.voice-name{font-size:15px;font-weight:600;line-height:1.4}
.voice-role{font-size:13px;color:var(--c-text-3);line-height:1.4}
.stars{color:var(--c-accent);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.voice-card p{font-size:15px;color:var(--c-text-2);margin:0}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:32px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:28px 20px;text-align:center;border-right:1px solid var(--c-line)}
.stat-item:last-child{border-right:0}
.stat-item strong{display:block;font-size:32px;font-weight:700;color:var(--c-primary);line-height:1.2;margin-bottom:4px}
.stat-item span{font-size:14px;color:var(--c-text-2)}
/* ================= FAQ ================= */
.faq-side h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:14px}
.faq-side p{font-size:16px;color:var(--c-text-2);margin-bottom:20px}
.faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color var(--t),background var(--t);
}
.faq-q:hover{color:var(--c-primary);background:#FAFCFF}
.faq-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px}
.faq-q[aria-expanded="true"]{color:var(--c-primary)}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-tint);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;line-height:1;
  transition:background var(--t),color var(--t);
}
.faq-q[aria-expanded="true"] .faq-icon{background:var(--c-primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--c-text-2);margin:0}
/* ================= CTA ================= */
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  background:linear-gradient(180deg,#F2F7FE,#E7F0FE);
  border:1.5px solid var(--c-primary-line);
  border-radius:20px;padding:60px 48px;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;
  border-radius:50%;background:rgba(16,99,206,.06);
}
.cta-band h2{font-size:30px;font-weight:700;margin-bottom:14px;position:relative;z-index:1}
.cta-band p{font-size:16px;color:var(--c-text-2);margin-bottom:28px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}
.cta-note{margin-top:14px;font-size:13px;color:var(--c-text-3);position:relative;z-index:1}
/* ================= 页脚 ================= */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-desc{font-size:14px;color:var(--c-text-2);margin-top:16px;max-width:330px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);font-size:12px;font-weight:600;
}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--c-text-2);transition:color var(--t)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-col li span{font-size:14px;color:var(--c-text-2)}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3);
}
/* ================= 底部固定转化条 ================= */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;height:64px;z-index:70;
  background:#fff;box-shadow:0 -2px 16px rgba(18,40,80,.10);
  display:flex;align-items:center;
  transform:translateY(115%);transition:transform 260ms ease-out;
  padding-bottom:env(safe-area-inset-bottom);
}
.sticky-bar.is-visible{transform:translateY(0)}
.sticky-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 20px;width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.sticky-text{font-size:15px;font-weight:600;color:var(--c-text);display:flex;align-items:center;gap:9px}
.sticky-text i{color:var(--c-primary)}
.sticky-actions{display:flex;align-items:center;gap:10px}
.sticky-close{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--c-line);
  background:#fff;cursor:pointer;color:var(--c-text-3);
  display:flex;align-items:center;justify-content:center;transition:all var(--t);
}
.sticky-close:hover{color:var(--c-primary);border-color:var(--c-primary-line);background:var(--c-primary-tint)}
.sticky-close:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
/* ================= 滚动入场 ================= */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms ease-out,transform 520ms ease-out}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}
/* ================= 断点 ================= */
@media (max-width:1199px){
  .hero h1{font-size:40px}
  .nav-links a{padding:11px 10px;font-size:14px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .section{padding:76px 0}
  .hero{padding:56px 0 68px}
  .hero-copy{max-width:none;padding-right:0;margin-bottom:40px}
  .hero-media{padding-left:0}
  .hero-float{display:none}
  .hero h1{font-size:36px}
  .scene-row{grid-template-columns:1fr;gap:28px;margin-bottom:60px}
  .scene-row--reverse .scene-media{order:0}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec-head h2,.faq-side h2{font-size:28px}
}
@media (max-width:767px){
  .topbar-inner{font-size:12px}
  .topbar-inner span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .section{padding:60px 0}
  .section--tight{padding:52px 0}
  .hero{padding:44px 0 56px}
  .hero h1{font-size:30px;letter-spacing:-.3px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto;min-width:150px}
  .hero-trust{gap:16px}
  .sec-head{margin-bottom:28px}
  .sec-head h2,.faq-side h2{font-size:24px}
  .cta-band{padding:40px 22px;border-radius:16px}
  .cta-band h2{font-size:23px}
  .stat-item strong{font-size:26px}
  .faq-q{padding:17px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .site-footer{padding-top:48px}
  .sticky-bar{height:60px}
  body{padding-bottom:60px}
  .sticky-text{font-size:14px}
  .sticky-close{display:none}
}
@media (max-width:520px){
  .grid-container{padding-left:16px;padding-right:16px}
  .nav-inner{padding:0 16px;height:66px}
  .brand-text{font-size:17px}
  .hero h1{font-size:27px}
  .btn-lg{height:50px;padding:0 20px;font-size:15px}
  .stat-bar{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-line)}
  .stat-item:last-child{border-bottom:0}
  .news-body{padding:18px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#1063CE;
  --c-primary-dark:#0B4FA6;
  --c-primary-tint:#E7F0FE;
  --c-primary-line:#BBD5F5;
  --c-accent:#FF6A2B;
  --c-accent-tint:#FFF1EA;
  --c-text:#12181F;
  --c-muted:#5A6672;
  --c-line:#E4EAF1;
  --c-bg:#F5F8FC;
  --c-white:#ffffff;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 2px 8px rgba(18,40,80,.06);
  --sh-hover:0 10px 28px rgba(18,40,80,.12);
  --sh-header:0 4px 16px rgba(18,40,80,.08);
  --ease:200ms ease-out;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
::selection{background:var(--c-primary-tint);color:var(--c-primary-dark);}

/* ============ 容器与栅格 ============ */
.grid-container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:20px;
  padding-right:20px;
}
.grid-pad{margin-left:-14px;margin-right:-14px;}
.grid-pad > .cell{padding-left:14px;padding-right:14px;}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-alt{background:var(--c-white);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

/* ============ 通用排版 ============ */
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.2px;}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:var(--c-primary);background:var(--c-primary-tint);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1.5px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 4px 14px rgba(16,99,206,.24);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(16,99,206,.28);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 4px 14px rgba(255,106,43,.26);}
.btn-accent:hover{background:#EA5A1C;color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,106,43,.3);}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:15px;}
.btn:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{background:var(--c-line);color:#93A0AD;box-shadow:none;cursor:not-allowed;border-color:transparent;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
.link-arrow span{transition:transform var(--ease);}
.link-arrow:hover span{transform:translateX(3px);}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-primary-tint);border-bottom:1px solid var(--c-primary-line);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding-top:6px;padding-bottom:6px;}
.topbar-text{font-size:13px;color:var(--c-primary-dark);}
.topbar-link{font-size:13px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:4px;}
.topbar-link:hover{color:var(--c-primary-dark);}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-header);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:70px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary),#3E8AE8);
  color:#fff;font-size:18px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:18px;font-weight:700;color:var(--c-text);letter-spacing:-.2px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-primary);}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 2px;
  font-size:15px;font-weight:500;color:#2A3542;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;
  transition:left var(--ease),right var(--ease);
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after{left:0;right:0;}
.nav-links a[aria-current="page"]{color:var(--c-primary);font-weight:700;}
.nav-cta{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--c-text);
  border:1px solid var(--c-line);
}
.nav-toggle:hover{background:var(--c-primary-tint);color:var(--c-primary);border-color:var(--c-primary-line);}
.nav-toggle .bars{position:relative;width:18px;height:2px;background:currentColor;border-radius:2px;display:block;}
.nav-toggle .bars::before,.nav-toggle .bars::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle .bars::before{top:-6px;}
.nav-toggle .bars::after{top:6px;}
.nav-overlay{
  position:fixed;inset:0;background:rgba(18,24,31,.42);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:55;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}
.drawer-close{
  display:none;position:absolute;top:18px;right:18px;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;font-size:20px;color:var(--c-muted);
}
body.nav-open{overflow:hidden;}

/* ============ 分类页头 ============ */
.cat1-hero{
  background:linear-gradient(180deg,#F8FBFF 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
  padding:28px 0 72px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);margin-bottom:26px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#B6C2CE;}
.breadcrumb .current{color:var(--c-text);font-weight:600;}
.cat1-hero h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.25;font-weight:700;letter-spacing:-.5px;
}
.cat1-hero .hero-lead{
  margin-top:18px;font-size:17px;line-height:1.8;color:var(--c-muted);max-width:600px;
}
.tag-group{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-primary-line);
  color:var(--c-primary);font-size:13px;font-weight:500;
}
.tag.is-accent{background:var(--c-accent-tint);border-color:#FFD3BE;color:#C64A14;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-media{
  position:relative;margin-top:34px;border-radius:16px;overflow:hidden;
  box-shadow:var(--sh-card);background:#E9EFF7;
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media .media-caption{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.94);border-radius:10px;
  padding:8px 14px;font-size:13px;color:var(--c-muted);
  box-shadow:var(--sh-card);
}

/* ============ 要点区 ============ */
.cat1-main h2{font-size:30px;line-height:1.32;font-weight:700;}
.cat1-main > p{margin-top:18px;color:var(--c-muted);}
.check-list{margin-top:24px;display:grid;gap:14px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15.5px;color:#33404D;
}
.check-list li::before{
  content:"";flex-shrink:0;width:20px;height:20px;margin-top:4px;border-radius:50%;
  background:var(--c-primary-tint) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231063CE' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/12px 12px no-repeat;
}
.info-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-card);height:100%;
}
.info-card h3{font-size:20px;font-weight:700;}
.info-card .info-sub{margin-top:8px;font-size:14px;color:var(--c-muted);}
.point-list{margin-top:22px;display:grid;gap:2px;}
.point-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-top:1px solid var(--c-line);
}
.point-list li:first-child{border-top:0;padding-top:0;}
.point-list .num{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:var(--c-primary-tint);color:var(--c-primary);
  font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.point-list .txt strong{display:block;font-size:15.5px;font-weight:600;color:var(--c-text);}
.point-list .txt span{display:block;font-size:14px;color:var(--c-muted);line-height:1.7;}

/* ============ 数据条 ============ */
.stat-bar{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:8px 0;
}
.stat-item{
  padding:22px 12px;text-align:center;position:relative;
}
.stat-item::before{
  content:"";position:absolute;left:0;top:24%;bottom:24%;width:1px;background:var(--c-line);
}
.stat-item:first-child::before{display:none;}
.stat-num{font-size:32px;font-weight:700;color:var(--c-primary);line-height:1.1;letter-spacing:-1px;}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px;}
.stat-label{margin-top:6px;font-size:14px;color:var(--c-muted);}

/* ============ 入口卡 ============ */
.entry-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--c-primary-line);}
.entry-thumb{position:relative;background:#E9EFF7;}
.entry-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.entry-badge{
  position:absolute;left:12px;top:12px;
  background:rgba(16,99,206,.92);color:#fff;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);
}
.entry-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.entry-body h3{font-size:20px;font-weight:700;line-height:1.4;}
.entry-card:hover .entry-body h3{color:var(--c-primary);}
.entry-body p{font-size:15px;color:var(--c-muted);line-height:1.75;flex:1;}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--c-primary-tint);border-left:3px solid var(--c-primary);
  border-radius:8px;padding:14px 18px;font-size:14px;color:var(--c-primary-dark);
}
.notice strong{font-weight:700;}

/* ============ CTA 区块 ============ */
.cta-block{
  background:#fff;border:1.5px solid var(--c-primary-line);
  border-radius:18px;padding:48px;
  box-shadow:var(--sh-card);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-block h2{font-size:30px;line-height:1.32;font-weight:700;}
.cta-block p{margin-top:12px;color:var(--c-muted);font-size:16px;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.cta-actions .hint{font-size:13px;color:var(--c-muted);}

/* ============ 页脚 ============ */
.site-footer{background:#0E1A28;color:#B9C6D4;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand:hover .brand-text{color:#7FB2EE;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#98A8B9;max-width:320px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{
  font-size:12px;color:#9FC2EC;background:rgba(16,99,206,.22);
  border:1px solid rgba(120,170,230,.28);border-radius:var(--r-pill);padding:4px 12px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a,.footer-col ul span{font-size:14px;color:#A9B8C8;line-height:1.6;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8395A7;
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:28px;z-index:40;
  width:46px;height:46px;border-radius:14px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-primary);
  box-shadow:var(--sh-hover);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease),background-color var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition:none !important;}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .section{padding:80px 0;}
  .nav-links{gap:20px;}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .nav-links{
    position:fixed;top:0;right:0;z-index:60;
    width:290px;max-width:86vw;height:100%;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:82px 24px 32px;overflow-y:auto;
    transform:translateX(105%);
    transition:transform .24s ease-out;
    box-shadow:-12px 0 32px rgba(18,40,80,.14);
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{padding:14px 4px;border-bottom:1px solid var(--c-line);font-size:16px;}
  .nav-links a::after{display:none;}
  .nav-links a[aria-current="page"]{color:var(--c-primary);}
  .nav-cta{display:flex;margin-top:22px;}
  .nav-cta .btn{width:100%;}
  .drawer-close{display:flex;}
  .section{padding:64px 0;}
  .section-head h2{font-size:26px;}
  .cat1-main h2{font-size:25px;}
  .cta-block{padding:34px;}
  .cta-block h2{font-size:25px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .cat1-hero{padding:22px 0 52px;}
  .cat1-hero .hero-lead{font-size:15.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:23px;}
  .info-card{padding:22px;}
  .stat-item{padding:18px 8px;}
  .stat-num{font-size:26px;}
  .stat-label{font-size:13px;}
  .cta-block{padding:26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .topbar-text{font-size:12.5px;}
  .cta-block h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .to-top{right:16px;bottom:20px;width:42px;height:42px;}
}

/* roulang page: article */
:root{
  --c-primary:#1063CE;
  --c-primary-dark:#0B4FA6;
  --c-primary-tint:#E7F0FE;
  --c-primary-line:#BBD5F5;
  --c-accent:#FF6A2B;
  --c-accent-tint:#FFF0E8;
  --text:#12181F;
  --text-2:#5A6672;
  --text-3:#8A94A1;
  --line:#E4EAF1;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(18,40,80,.06);
  --shadow-md:0 10px 28px rgba(18,40,80,.12);
  --shadow-nav:0 2px 12px rgba(18,40,80,.08);
  --container:1200px;
  --gutter:20px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-bottom:92px;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out}
a:hover{color:var(--c-primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0;color:#fff}
.grid-container{max-width:var(--container);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);width:100%}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-primary-tint);border-bottom:1px solid var(--c-primary-line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:38px;font-size:13px;color:var(--text-2);flex-wrap:wrap}
.topbar-inner strong{color:var(--c-primary);font-weight:600}
.topbar-inner a{font-size:13px;font-weight:600}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out}
.site-header.is-stuck{box-shadow:var(--shadow-nav)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--c-primary),#2F86EA);color:#fff;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center}
.brand-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.5px;white-space:nowrap}
.brand:hover .brand-text{color:var(--c-primary)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{position:relative;display:inline-block;padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px}
.nav-links a::after{content:"";position:absolute;left:50%;right:50%;bottom:4px;height:2px;background:var(--c-primary);border-radius:2px;transition:left .2s ease-out,right .2s ease-out}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-tint)}
.nav-links a:hover::after{left:12px;right:12px}
.nav-links a[aria-current="page"]{color:var(--c-primary);font-weight:700}
.nav-links a[aria-current="page"]::after{left:12px;right:12px}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle:hover{border-color:var(--c-primary-line);background:var(--c-primary-tint)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;font-size:15px;font-weight:600;border-radius:var(--radius-btn);border:1.5px solid transparent;cursor:pointer;transition:all .2s ease-out;text-align:center;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(16,99,206,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent)}
.btn-accent:hover{background:#E85A1C;border-color:#E85A1C;color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,106,43,.28)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:56px;padding:0 32px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);height:auto;padding:0;background:none;border:0}
.btn-text i{transition:transform .2s ease-out}
.btn-text:hover i{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;font-size:12px;font-weight:600;border-radius:var(--radius-pill);background:var(--c-primary-tint);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-tint);color:#C2450B}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;font-size:13px;color:var(--text-2);background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);transition:all .2s ease-out}
.tag:hover{border-color:var(--c-primary-line);color:var(--c-primary);background:var(--c-primary-tint)}

/* ---------- 面包屑 ---------- */
.crumb-band{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;min-height:52px;font-size:14px;color:var(--text-3);overflow:hidden}
.breadcrumb a{color:var(--text-2);white-space:nowrap}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline}
.breadcrumb .sep{color:var(--text-3);flex-shrink:0}
.breadcrumb .crumb-current{color:var(--text);font-weight:600;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 布局 ---------- */
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;padding-top:36px;padding-bottom:88px}
.art-main{min-width:0;display:flex;flex-direction:column;gap:32px}
.art-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:36px 44px 40px}

/* ---------- 文章头 ---------- */
.art-head{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:28px}
.art-title{font-size:34px;line-height:1.34;font-weight:700;letter-spacing:.2px;color:var(--text)}
.art-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 14px;margin-top:18px;font-size:14px;color:var(--text-2)}
.art-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.art-meta .meta-item i{color:var(--c-primary);font-size:13px}
.art-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.art-meta time{font-variant-numeric:tabular-nums}

/* ---------- 正文 ---------- */
.article-body{font-size:16px;line-height:1.92;color:var(--text);max-width:760px}
.article-body>p{margin:0 0 1em}
.article-body h2{font-size:25px;line-height:1.4;font-weight:700;margin:2.1em 0 .8em;padding-left:14px;border-left:4px solid var(--c-primary);color:var(--text)}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;margin:1.7em 0 .7em;color:var(--text)}
.article-body h4{font-size:17px;font-weight:700;margin:1.5em 0 .6em}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:24px;margin-bottom:.55em;color:var(--text)}
.article-body ul li::before{content:"";position:absolute;left:6px;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--c-primary)}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:.1em;width:18px;height:18px;border-radius:6px;background:var(--c-primary-tint);color:var(--c-primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.article-body blockquote{margin:0 0 1.2em;padding:16px 20px;background:var(--c-primary-tint);border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;color:var(--text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:1.4em 0;box-shadow:var(--shadow-sm)}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:1.3em 0;font-size:14px;background:#fff;border:1px solid var(--line);border-radius:10px}
.article-body th,.article-body td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body th{background:#F1F6FD;color:var(--c-primary-dark);font-weight:700}
.article-body tr:last-child td{border-bottom:0}
.article-body pre{background:#F3F6FA;border:1px solid var(--line);border-radius:10px;padding:16px 18px;overflow-x:auto;margin:1.3em 0;font-size:14px;line-height:1.7}
.article-body code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:14px;background:#F3F6FA;border-radius:6px;padding:2px 6px;color:#0B4FA6}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body a{color:var(--c-primary);font-weight:500;border-bottom:1px solid var(--c-primary-line)}
.article-body a:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary-dark)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}
.article-body strong{font-weight:700;color:var(--text)}

/* ---------- 空态 ---------- */
.empty-state{padding:56px 24px;text-align:center;background:#F8FBFF;border:1px dashed var(--c-primary-line);border-radius:var(--radius-card)}
.empty-state i{font-size:36px;color:var(--c-primary-line)}
.empty-state h2{font-size:20px;margin:14px 0 8px;font-weight:700;border:0;padding:0}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px}

/* ---------- 文末 ---------- */
.art-foot{margin-top:38px;border-top:1px solid var(--line);padding-top:26px}
.art-foot h2{font-size:16px;font-weight:700;margin-bottom:14px;color:var(--text)}
.art-tags{margin-bottom:30px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:28px}
.pager-item{display:flex;flex-direction:column;gap:6px;padding:18px 20px;background:#F8FBFF;border:1px solid var(--line);border-radius:12px;transition:all .2s ease-out}
.pager-item:hover{border-color:var(--c-primary-line);background:var(--c-primary-tint);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.pager-item span{font-size:12px;color:var(--text-3)}
.pager-item strong{font-size:15px;font-weight:600;color:var(--text);line-height:1.5}
.pager-item.is-next{text-align:right}
.art-back{display:flex;justify-content:center}

/* ---------- 相关推荐 ---------- */
.section{background:transparent}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.section-head h2{font-size:23px;font-weight:700;color:var(--text)}
.section-head p{margin-top:6px;font-size:14px;color:var(--text-2)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .2s ease-out}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-primary-line)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E8EFF8}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-thumb .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--c-primary);backdrop-filter:blur(4px)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:700;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover .post-body h3{color:var(--c-primary)}
.post-body p{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.post-meta time{font-variant-numeric:tabular-nums}

/* ---------- 侧栏 ---------- */
.art-side{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:22px 22px 24px}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px;color:var(--text)}
.side-card h2 i{color:var(--c-primary);font-size:15px}
.side-list li+li{border-top:1px solid var(--line)}
.side-list a{display:flex;align-items:center;gap:12px;padding:12px 0;font-size:14px;color:var(--text-2);font-weight:500}
.side-list a:hover{color:var(--c-primary)}
.side-list .idx{flex-shrink:0;width:24px;height:24px;border-radius:8px;background:var(--c-primary-tint);color:var(--c-primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.side-list a:hover .idx{background:var(--c-primary);color:#fff}
.side-cta{background:linear-gradient(160deg,#0E5ABE,#2F86EA);border:0;color:#fff;text-align:left}
.side-cta h2{color:#fff}
.side-cta h2 i{color:#fff}
.side-cta p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.86);margin-bottom:18px}
.side-cta .btn{width:100%;background:#fff;color:var(--c-primary);border-color:#fff}
.side-cta .btn:hover{background:#EAF3FF;color:var(--c-primary-dark);border-color:#EAF3FF}

/* ---------- 阅读帮助手风琴 ---------- */
.help-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:28px 32px 12px}
.help-card>h2{font-size:21px;font-weight:700;margin-bottom:6px}
.help-card>p{font-size:14px;color:var(--text-2);margin-bottom:14px}
.accordion{display:flex;flex-direction:column}
.acc-item{border-bottom:1px solid var(--line)}
.acc-item:last-child{border-bottom:0}
.acc-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;background:none;border:0;cursor:pointer;text-align:left;font-size:15px;font-weight:600;color:var(--text);transition:color .2s ease-out}
.acc-trigger:hover{color:var(--c-primary)}
.acc-trigger .icon{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--c-primary-tint);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:12px;transition:transform .2s ease-out,background-color .2s ease-out}
.acc-item.is-open .acc-trigger{color:var(--c-primary)}
.acc-item.is-open .acc-trigger .icon{background:var(--c-primary);color:#fff;transform:rotate(180deg)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .25s ease-out}
.acc-panel p{font-size:14.5px;color:var(--text-2);line-height:1.85;padding:0 0 18px}

/* ---------- 底部 CTA ---------- */
.cta-band{padding-bottom:88px}
.cta-card{background:var(--c-primary-tint);border:1.5px solid var(--c-primary-line);border-radius:18px;padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-card h2{font-size:27px;font-weight:700;color:var(--text);margin-bottom:10px}
.cta-card p{font-size:15px;color:var(--text-2);max-width:56ch}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a,.footer-col ul span{font-size:14px;color:var(--text-2);line-height:1.7}
.footer-col ul a:hover{color:var(--c-primary);text-decoration:underline}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;margin:14px 0 16px;max-width:38ch}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{font-size:12px;color:var(--c-primary);background:var(--c-primary-tint);border-radius:var(--radius-pill);padding:4px 12px}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* ---------- 固定转化条 ---------- */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:95;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(18,40,80,.08);transform:translateY(100%);transition:transform .25s ease-out;padding-bottom:env(safe-area-inset-bottom)}
.sticky-bar.is-visible{transform:translateY(0)}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.sticky-text{font-size:14px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:10px}
.sticky-text i{color:var(--c-primary)}
.sticky-actions{display:flex;align-items:center;gap:10px}
.sticky-close{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--text-3);cursor:pointer;transition:all .2s ease-out}
.sticky-close:hover{color:var(--c-primary);border-color:var(--c-primary-line);background:var(--c-primary-tint)}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(12,24,44,.45);opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;z-index:98}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:99;transform:translateX(100%);transition:transform .28s ease-out;display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:-10px 0 30px rgba(18,40,80,.14)}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:14px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;color:var(--text-2);cursor:pointer}
.drawer-close:hover{color:var(--c-primary);background:var(--c-primary-tint);border-color:var(--c-primary-line)}
.drawer-links{display:flex;flex-direction:column;flex:1}
.drawer-links a{padding:14px 4px;font-size:15.5px;font-weight:500;color:var(--text);border-bottom:1px solid var(--line)}
.drawer-links a:hover,.drawer-links a[aria-current="page"]{color:var(--c-primary)}
.drawer-cta{margin-top:20px}
.drawer-cta .btn{width:100%}
body.no-scroll{overflow:hidden}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .art-layout{grid-template-columns:minmax(0,1fr) 290px;gap:26px}
  .art-title{font-size:30px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .art-layout{grid-template-columns:minmax(0,1fr);padding-bottom:64px}
  .art-side{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-body{max-width:100%}
}
@media (max-width:767px){
  body{padding-bottom:84px}
  :root{--gutter:16px}
  .header-inner{min-height:64px;gap:14px}
  .brand-text{font-size:17px}
  .art-card{padding:24px 20px 28px}
  .art-title{font-size:25px}
  .art-meta{font-size:13px}
  .article-body{font-size:15.5px;line-height:1.88}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:17.5px}
  .pager{grid-template-columns:1fr}
  .pager-item.is-next{text-align:left}
  .related-grid{grid-template-columns:1fr}
  .cta-card{padding:30px 22px}
  .cta-card h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .help-card{padding:24px 20px 8px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .topbar-inner{font-size:12.5px}
  .sticky-inner{min-height:60px}
  .sticky-text{font-size:13.5px}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .topbar-inner{justify-content:center;text-align:center;min-height:34px}
  .sticky-text span{display:none}
  .sticky-text::after{content:"继续浏览栏目";font-size:13.5px}
  .btn-sm{height:38px;padding:0 14px;font-size:13.5px}
}

/* roulang page: category2 */
:root{
  --c-primary:#1063CE;
  --c-primary-dark:#0B4FA6;
  --c-primary-tint:#E7F0FE;
  --c-primary-line:#BBD5F5;
  --c-accent:#FF6A2B;
  --c-accent-tint:#FFF0E8;
  --c-text:#12181F;
  --c-text-2:#5A6672;
  --c-line:#E4EAF1;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-card:0 2px 8px rgba(18,40,80,.06);
  --sh-hover:0 10px 28px rgba(18,40,80,.12);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{overflow-x:hidden;-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:64px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t);}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.grid-container{max-width:1200px;width:100%;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1.5px solid transparent;text-decoration:none;
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(16,99,206,.26);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#E85A1C;color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,106,43,.28);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:56px;padding:0 32px;font-size:17px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;filter:saturate(.6);transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-arrow i{font-size:12px;transition:transform var(--t);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-primary-tint);border-bottom:1px solid var(--c-primary-line);font-size:13px;color:var(--c-text-2);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:38px;padding-top:4px;padding-bottom:4px;}
.topbar-inner span{display:inline-flex;align-items:center;gap:8px;}
.topbar-inner i{color:var(--c-primary);}
.topbar-inner a{font-weight:600;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t);
}
.site-header.is-stuck{box-shadow:0 4px 16px rgba(18,40,80,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),#0B4FA6);
  color:#fff;font-size:17px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 4px 10px rgba(16,99,206,.28);
}
.brand-text{font-size:18px;font-weight:700;color:var(--c-text);letter-spacing:.4px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-primary);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-block;padding:10px 14px;
  font-size:15px;color:var(--c-text-2);border-radius:8px;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;
  background:var(--c-primary);border-radius:2px;transform:translateX(-50%);
  transition:width var(--t);
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.nav-links a:hover::after{width:22px;}
.nav-links a[aria-current="page"]{color:var(--c-primary);font-weight:700;}
.nav-links a[aria-current="page"]::after{width:22px;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);
  font-size:17px;align-items:center;justify-content:center;
  transition:background var(--t),border-color var(--t),color var(--t);
}
.nav-toggle:hover{background:var(--c-primary-tint);border-color:var(--c-primary-line);color:var(--c-primary);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,24,31,.45);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:340px;
  background:#fff;z-index:90;transform:translateX(105%);
  transition:transform 260ms ease-out;
  display:flex;flex-direction:column;padding:20px;
  box-shadow:-12px 0 32px rgba(18,40,80,.16);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-text-2);font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--c-primary-tint);color:var(--c-primary);border-color:var(--c-primary-line);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:18px 0;flex:1;}
.drawer-nav a{
  padding:13px 14px;border-radius:10px;font-size:15px;color:var(--c-text);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--c-primary-tint);color:var(--c-primary);}
.drawer-nav a[aria-current="page"]{background:var(--c-primary-tint);color:var(--c-primary);font-weight:700;border-color:var(--c-primary-line);}

/* ---------- 分类页头 ---------- */
.cat2-hero{position:relative;background:#fff;border-bottom:1px solid var(--c-line);overflow:hidden;}
.cat2-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.14;
}
.cat2-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.88) 52%,rgba(255,255,255,.62) 100%);
}
.cat2-hero .grid-container{position:relative;z-index:2;}
.cat2-hero-inner{padding:34px 0 60px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);margin-bottom:22px;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;}
.breadcrumb .sep{color:#A9B6C4;}
.breadcrumb .current{color:var(--c-text);font-weight:600;}
.cat2-hero-grid{align-items:center;}
.hero-copy{max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  background:var(--c-primary-tint);color:var(--c-primary);
  font-size:13px;font-weight:600;margin-bottom:18px;
  border:1px solid var(--c-primary-line);
}
.cat2-hero h1{font-size:44px;line-height:1.25;font-weight:700;letter-spacing:-.5px;margin-bottom:16px;}
.cat2-hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:600px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;background:#fff;
  border:1px solid var(--c-line);font-size:13px;color:var(--c-text-2);
}
.tag i{color:var(--c-primary);font-size:12px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{
  border-radius:16px;overflow:hidden;background:var(--c-primary-tint);
  box-shadow:0 16px 40px rgba(18,40,80,.14);border:1px solid var(--c-line);
  position:relative;
}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-float{
  position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.96);
  border-radius:12px;padding:12px 16px;box-shadow:0 8px 24px rgba(18,40,80,.16);
  border:1px solid var(--c-line);
}
.hero-float strong{display:block;font-size:22px;color:var(--c-primary);line-height:1.2;}
.hero-float span{font-size:12px;color:var(--c-text-2);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:32px;line-height:1.35;font-weight:700;margin-bottom:14px;letter-spacing:-.3px;}
.section-head p{font-size:16px;color:var(--c-text-2);line-height:1.85;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}

/* ---------- 功能卡网格 ---------- */
.cat2-grid{margin-left:-14px;margin-right:-14px;}
.cat2-grid > .cell{padding-left:14px;padding-right:14px;margin-bottom:28px;}
.feat-card{
  height:100%;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px 26px 24px;
  box-shadow:var(--sh-card);display:flex;flex-direction:column;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.feat-card:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);border-color:var(--c-primary-line);}
.feat-ico{
  width:48px;height:48px;border-radius:12px;background:var(--c-primary-tint);
  color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:18px;
}
.feat-card h3{font-size:20px;font-weight:700;margin-bottom:10px;line-height:1.4;}
.feat-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;margin-bottom:18px;flex:1;}
.feat-card .link-arrow{margin-top:auto;}
.feat-card.is-highlight{border-color:var(--c-primary-line);background:linear-gradient(180deg,#F7FAFF 0%,#fff 60%);}
.feat-card.is-highlight .feat-ico{background:var(--c-primary);color:#fff;}

/* ---------- 数据条 ---------- */
.stats-band{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:34px 20px;
}
.stats-row{align-items:center;}
.stat-item{text-align:center;padding:10px 12px;position:relative;}
.stat-item + .stat-item::before{
  content:"";position:absolute;left:0;top:16%;height:68%;width:1px;background:var(--c-line);
}
.stat-num{font-size:32px;font-weight:700;color:var(--c-primary);line-height:1.2;letter-spacing:-.5px;}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px;}
.stat-label{font-size:14px;color:var(--c-text-2);margin-top:6px;}

/* ---------- 图文区 ---------- */
.split-grid{align-items:center;}
.split-figure{
  border-radius:16px;overflow:hidden;background:var(--c-primary-tint);
  box-shadow:0 14px 34px rgba(18,40,80,.12);border:1px solid var(--c-line);
}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-copy h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:16px;}
.split-copy > p{font-size:16px;color:var(--c-text-2);line-height:1.9;margin-bottom:22px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-text);line-height:1.8;}
.check-list li i{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary-tint);color:var(--c-primary);
  font-size:11px;display:inline-flex;align-items:center;justify-content:center;margin-top:4px;
}
.check-list li strong{font-weight:700;}

/* ---------- 场景清单 ---------- */
.scene-grid{margin-left:-14px;margin-right:-14px;}
.scene-grid > .cell{padding-left:14px;padding-right:14px;margin-bottom:16px;}
.scene-item{
  display:flex;gap:14px;align-items:flex-start;height:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-card);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.scene-item:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:var(--c-primary-line);}
.scene-item i{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  background:var(--c-primary-tint);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.scene-item h3{font-size:16.5px;font-weight:700;margin-bottom:6px;}
.scene-item p{font-size:14px;color:var(--c-text-2);line-height:1.8;}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-accent-tint);border-left:3px solid var(--c-accent);
  border-radius:10px;padding:16px 20px;margin-top:32px;
}
.notice i{color:var(--c-accent);font-size:16px;margin-top:3px;}
.notice p{font-size:14px;color:#7A4A2E;line-height:1.8;}
.notice strong{color:#5C3418;}

/* ---------- CTA ---------- */
.cta-band{
  background:#fff;border:1.5px solid var(--c-primary-line);border-radius:18px;
  padding:52px 44px;box-shadow:0 12px 34px rgba(18,40,80,.08);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:var(--c-primary-tint);opacity:.7;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:30px;font-weight:700;line-height:1.4;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--c-text-2);max-width:560px;line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1B2A;color:#C6D2E0;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px;letter-spacing:.4px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{color:#A9B8C9;font-size:14px;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-col ul span{color:#8FA1B4;font-size:14px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand:hover .brand-text{color:#8FBDF5;}
.footer-desc{font-size:14px;line-height:1.9;color:#93A5B8;margin:16px 0 18px;max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12.5px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.08);color:#B9C9DA;border:1px solid rgba(255,255,255,.1);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E90A5;
}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;
  border-top:1px solid var(--c-line);box-shadow:0 -6px 20px rgba(18,40,80,.08);
  padding-bottom:env(safe-area-inset-bottom);
  transform:translateY(105%);transition:transform 260ms ease-out;
}
.sticky-bar.is-visible{transform:translateY(0);}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding-top:8px;padding-bottom:8px;
}
.sticky-text{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--c-text);font-weight:600;}
.sticky-text i{color:var(--c-primary);}
.sticky-actions{display:flex;align-items:center;gap:10px;}
.sticky-close{
  width:34px;height:34px;border-radius:8px;color:#96A4B4;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.sticky-close:hover{background:var(--c-bg);color:var(--c-text);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .cat2-hero h1{font-size:38px;}
  .section-head h2{font-size:28px;}
}
@media screen and (max-width:1023px){
  body{padding-bottom:60px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:66px;gap:12px;}
  .header-actions .btn{display:none;}
  .section{padding:64px 0;}
  .cat2-hero-inner{padding:26px 0 48px;}
  .cat2-hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .sticky-bar{transform:translateY(0);}
  .cta-band{padding:40px 28px;}
  .cta-inner h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  .stat-item + .stat-item::before{display:none;}
  .stat-item{border-top:1px solid var(--c-line);}
  .stat-item:first-child,.stat-item:nth-child(2){border-top:0;}
  .split-copy{margin-top:26px;}
  .split-copy h2{font-size:24px;}
  .section-head h2{font-size:23px;}
  .hero-float{display:none;}
  .hero-figure img{aspect-ratio:16/10;}
  .sticky-text span{display:none;}
  .sticky-text{font-size:14px;}
}
@media screen and (max-width:575px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .cat2-hero h1{font-size:28px;}
  .btn{height:46px;padding:0 18px;font-size:14.5px;}
  .btn-lg{height:52px;font-size:16px;}
  .cta-band{padding:32px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .hero-cta .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .feat-card{padding:22px;}
  .section{padding:54px 0;}
}

/* roulang page: category3 */
/* ============ 1. 设计变量 ============ */
:root{
  --c-primary:#1063CE;
  --c-primary-dark:#0B4FA6;
  --c-primary-tint:#E7F0FE;
  --c-primary-line:#BBD5F5;
  --c-accent:#FF6A2B;
  --c-accent-tint:#FFF0E9;
  --c-text:#12181F;
  --c-text-2:#5A6672;
  --c-line:#E4EAF1;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --r-lg:14px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(18,40,80,.06);
  --sh-2:0 10px 28px rgba(18,40,80,.12);
  --sec-pad:96px;
  --sec-pad-sm:60px;
  --t:200ms ease-out;
  --max:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.78;
  color:var(--c-text);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.drawer-open{overflow:hidden;}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;line-height:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
/* Foundation 默认观感覆盖 */
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li{font-family:var(--font-cn);}
h1{font-size:44px;line-height:1.24;font-weight:700;}
h2{font-size:32px;line-height:1.3;font-weight:700;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
h4{font-size:16px;font-weight:600;line-height:1.5;}
a{color:var(--c-primary);}
a:hover{color:var(--c-primary-dark);}
.grid-container{max-width:var(--max);padding-left:20px;padding-right:20px;}
/* ============ 3. 通用容器与版块 ============ */
.section{padding:var(--sec-pad) 0;}
.section-alt{background:var(--c-bg);}
.section-head{max-width:700px;margin-bottom:44px;}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;margin-bottom:16px;
  font-size:13px;font-weight:600;letter-spacing:.2px;
  color:var(--c-primary);background:var(--c-primary-tint);
  border-radius:var(--r-pill);
}
.eyebrow.is-accent{color:#C0451A;background:var(--c-accent-tint);}
.section-title{font-size:32px;line-height:1.32;font-weight:700;letter-spacing:-.3px;}
.section-desc{margin-top:14px;font-size:16px;color:var(--c-text-2);}
.divider{height:1px;background:var(--c-line);border:0;margin:0;}
/* ============ 4. 按钮与文字链 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  font-size:16px;font-weight:600;white-space:nowrap;
  border:1.5px solid transparent;border-radius:var(--r-sm);
  transition:transform var(--t),background var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
}
.btn i{font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 4px 12px rgba(16,99,206,.22);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(16,99,206,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(16,99,206,.24);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-lg{height:56px;padding:0 34px;font-size:17px;}
.btn[disabled],.btn.is-disabled{opacity:.5;filter:saturate(.4);pointer-events:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:var(--c-primary);}
.link-arrow i{font-size:12px;transition:transform var(--t);}
.link-arrow:hover i{transform:translateX(3px);}
/* ============ 5. 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,40,80,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;flex:0 0 auto;
  background:var(--c-primary);color:#fff;
  font-size:17px;font-weight:700;
  border-radius:10px;
}
.brand-text{font-size:18px;font-weight:700;color:var(--c-text);white-space:nowrap;letter-spacing:.2px;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-links a{
  position:relative;display:block;
  padding:9px 13px;
  font-size:15px;color:var(--c-text-2);
  border-radius:8px;
  transition:color var(--t),background var(--t);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:2px;background:var(--c-primary);
  border-radius:2px;transform:translateX(-50%);
  transition:width var(--t);
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.nav-links a:hover::after{width:22px;}
.nav-links a[aria-current="page"]{color:var(--c-primary);font-weight:600;}
.nav-links a[aria-current="page"]::after{width:22px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;flex:0 0 auto;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;color:var(--c-text);
  transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:var(--c-primary-tint);border-color:var(--c-primary-line);}
.nav-toggle i{font-size:17px;}
/* ============ 6. 分类页头 ============ */
.cat3-hero{
  position:relative;overflow:hidden;
  padding:30px 0 76px;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
}
.cat3-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(16,99,206,.09) 1px,transparent 1px);
  background-size:24px 24px;opacity:.6;
}
.hero-row{position:relative;z-index:1;}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  margin-bottom:28px;font-size:14px;color:var(--c-text-2);
}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb-sep{color:#A9B4C0;}
.crumb [aria-current="page"]{color:var(--c-text);font-weight:600;}
.hero-title{font-size:44px;line-height:1.22;letter-spacing:-.5px;font-weight:700;margin-top:4px;}
.hero-title .h1-brand{
  display:block;margin-bottom:10px;
  font-size:19px;font-weight:600;letter-spacing:0;
  color:var(--c-primary);
}
.hero-sub{margin-top:18px;max-width:520px;font-size:17px;color:var(--c-text-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-figure{margin-top:38px;}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;box-shadow:var(--sh-2);
  background:var(--c-primary-tint);
}
/* ============ 7. 时间轴 ============ */
.timeline{position:relative;}
.tl-item{position:relative;display:grid;grid-template-columns:60px 1fr;gap:22px;padding-bottom:26px;}
.tl-item::before{
  content:"";position:absolute;left:29px;top:62px;bottom:0;
  width:2px;background:var(--c-primary-line);
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-num{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:center;
  width:60px;height:60px;
  font-size:18px;font-weight:700;color:var(--c-primary);
  background:#fff;border:2px solid var(--c-primary-line);
  border-radius:50%;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.tl-item:hover .tl-num{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.tl-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:24px 26px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.tl-item:hover .tl-card{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line);}
.tl-card h3{font-size:20px;margin-bottom:8px;}
.tl-card p{font-size:15px;color:var(--c-text-2);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{
  display:inline-flex;align-items:center;
  padding:4px 11px;font-size:12.5px;font-weight:500;
  color:var(--c-primary);background:var(--c-primary-tint);
  border-radius:var(--r-pill);
}
.chip.is-accent{color:#C0451A;background:var(--c-accent-tint);}
/* ============ 8. 对比区 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{
  display:flex;flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:28px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.compare-card.is-accent{border-color:var(--c-primary-line);}
.compare-head{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.compare-icon{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;flex:0 0 auto;
  font-size:18px;color:var(--c-primary);
  background:var(--c-primary-tint);border-radius:12px;
}
.compare-card.is-accent .compare-icon{background:var(--c-primary);color:#fff;}
.compare-head h3{font-size:20px;}
.compare-head span{display:block;font-size:13.5px;color:var(--c-text-2);font-weight:400;margin-top:2px;}
.compare-list{margin-top:8px;}
.compare-list li{
  display:grid;grid-template-columns:76px 1fr;gap:12px;
  padding:14px 0;
  font-size:15px;
  border-bottom:1px dashed var(--c-line);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list .k{color:var(--c-text-2);font-size:14px;}
.compare-list .v{color:var(--c-text);}
/* ============ 9. 数据条 ============ */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.stat-item{padding:28px 22px;border-right:1px solid var(--c-line);}
.stat-item:last-child{border-right:0;}
.stat-num{font-size:32px;font-weight:700;line-height:1.1;color:var(--c-primary);letter-spacing:-.5px;}
.stat-num small{font-size:15px;font-weight:600;margin-left:3px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--c-text-2);}
/* ============ 10. 提示条 ============ */
.notice{
  display:flex;align-items:flex-start;gap:12px;
  padding:16px 18px;margin-bottom:28px;
  background:var(--c-primary-tint);
  border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.notice i{color:var(--c-primary);font-size:16px;line-height:1.6;}
.notice p{flex:1;font-size:14.5px;color:var(--c-text-2);line-height:1.7;}
.notice-close{
  flex:0 0 auto;padding:2px 6px;color:var(--c-text-2);
  border-radius:6px;transition:background var(--t),color var(--t);
}
.notice-close:hover{background:#fff;color:var(--c-primary);}
/* ============ 11. 行式入口列表 ============ */
.link-rows{border-top:1px solid var(--c-line);}
.link-row{
  display:flex;align-items:center;gap:18px;
  padding:20px 14px;
  border-bottom:1px solid var(--c-line);
  transition:background var(--t),padding-left var(--t);
}
.link-row:hover{background:var(--c-primary-tint);padding-left:22px;}
.link-row img{
  width:72px;height:54px;flex:0 0 auto;
  object-fit:cover;border-radius:var(--r-sm);
  background:var(--c-primary-tint);
}
.link-row-body{flex:1;min-width:0;}
.link-row-body h3{font-size:18px;margin-bottom:4px;color:var(--c-text);transition:color var(--t);}
.link-row:hover .link-row-body h3{color:var(--c-primary);}
.link-row-body p{font-size:14.5px;color:var(--c-text-2);}
.link-row .go{
  flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  color:var(--c-primary);background:#fff;border:1px solid var(--c-line);
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t);
}
.link-row:hover .go{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateX(4px);}
/* ============ 12. 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  padding:52px 44px;
  text-align:center;
  background:var(--c-primary-tint);
  border:1px solid var(--c-primary-line);
  border-radius:18px;
}
.cta-band h2{font-size:30px;line-height:1.35;}
.cta-band p{margin:14px auto 0;max-width:560px;font-size:16px;color:var(--c-text-2);}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px;}
.cta-note{margin-top:16px;font-size:13px;color:var(--c-text-2);}
/* ============ 13. 页脚 ============ */
.site-footer{background:#0F1A2B;color:#C4CFDE;padding:64px 0 0;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand:hover{color:#fff;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px 32px;
}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:#93A2B8;max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{
  padding:4px 11px;font-size:12.5px;
  color:#BBD5F5;background:rgba(187,213,245,.12);
  border-radius:var(--r-pill);
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.3px;}
.footer-col ul li{margin-bottom:11px;font-size:14.5px;line-height:1.6;}
.footer-col ul li a{color:#93A2B8;}
.footer-col ul li a:hover{color:#7FB2F0;text-decoration:underline;}
.footer-col ul li span{color:#93A2B8;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:52px;padding:22px 0 26px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13.5px;color:#7E8DA3;
}
/* ============ 14. 底部固定条 ============ */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:65;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  height:64px;padding:0 max(20px,env(safe-area-inset-left)) 0 max(20px,env(safe-area-inset-right));
  background:rgba(255,255,255,.98);
  box-shadow:0 -6px 20px rgba(18,40,80,.1);
  transform:translateY(110%);
  transition:transform 260ms ease-out;
}
.fixed-bar.is-visible{transform:translateY(0);}
.fixed-bar-text{font-size:14.5px;color:var(--c-text-2);}
.fixed-bar-text strong{color:var(--c-text);font-weight:600;}
.fixed-bar-actions{display:flex;align-items:center;gap:10px;}
.fixed-bar-close{
  display:flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  color:var(--c-text-2);transition:background var(--t),color var(--t);
}
.fixed-bar-close:hover{background:var(--c-line);color:var(--c-text);}
body{padding-bottom:64px;}
/* ============ 15. 滚动入场 ============ */
.js .reveal{opacity:0;transform:translateY(12px);}
.js .reveal.is-visible{opacity:1;transform:none;transition:opacity 500ms ease-out,transform 500ms ease-out;}
/* ============ 16. 响应式 ============ */
@media (max-width:1199px){
  .hero-title{font-size:40px;}
  .section-title{font-size:29px;}
}
@media (max-width:1023px){
  :root{--sec-pad:76px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:72px;right:0;
    width:min(320px,86vw);max-height:calc(100vh - 72px);
    flex-direction:column;align-items:stretch;gap:4px;
    padding:16px;
    background:#fff;
    border-left:1px solid var(--c-line);
    box-shadow:-14px 24px 40px rgba(18,40,80,.14);
    overflow-y:auto;
    transform:translateX(105%);
    transition:transform 240ms ease-out;
  }
  body.drawer-open .nav-links{transform:translateX(0);}
  .nav-links a{padding:13px 14px;font-size:16px;border-radius:10px;}
  .nav-links a::after{display:none;}
  .nav-links a[aria-current="page"]{background:var(--c-primary-tint);}
  .hero-figure{margin-top:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px 26px;}
  .compare{grid-template-columns:1fr;}
}
@media (max-width:767px){
  :root{--sec-pad:60px;--sec-pad-sm:48px;}
  body{font-size:15.5px;}
  .nav-inner{height:64px;}
  .nav-links{top:64px;max-height:calc(100vh - 64px);}
  .brand-text{font-size:16.5px;}
  .cat3-hero{padding:22px 0 56px;}
  .hero-row{margin-left:0;margin-right:0;}
  .hero-row > .cell{padding-left:0;padding-right:0;}
  .hero-title{font-size:30px;}
  .hero-title .h1-brand{font-size:17px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 auto;min-width:140px;}
  .section-title{font-size:23px;}
  .section-head{margin-bottom:30px;}
  .tl-item{grid-template-columns:44px 1fr;gap:14px;padding-bottom:20px;}
  .tl-item::before{left:21px;top:48px;}
  .tl-num{width:44px;height:44px;font-size:15px;}
  .tl-card{padding:20px;}
  .compare-card{padding:22px;}
  .compare-list li{grid-template-columns:64px 1fr;gap:10px;}
  .stats-bar{grid-template-columns:1fr 1fr;}
  .stat-item{padding:20px 16px;}
  .stat-item:nth-child(2n){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .stat-num{font-size:27px;}
  .cta-band{padding:36px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .link-row{padding:16px 6px;gap:14px;}
  .link-row:hover{padding-left:6px;}
  .link-row img{width:60px;height:46px;}
  .link-row-body h3{font-size:16.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .fixed-bar{height:60px;}
  body{padding-bottom:60px;}
  .fixed-bar-text{font-size:13.5px;}
  .fixed-bar-text .hide-sm{display:none;}
  .fixed-bar .btn{padding:0 18px;height:42px;font-size:15px;}
}
@media (max-width:519px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .stats-bar{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-line);}
  .stat-item:last-child{border-bottom:0;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1063CE;
  --c-primary-dark:#0B4FA6;
  --c-primary-tint:#E7F0FE;
  --c-primary-line:#BBD5F5;
  --c-accent:#FF6A2B;
  --c-text:#12181F;
  --c-text-2:#5A6672;
  --c-line:#E4EAF1;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-card:0 2px 8px rgba(18,40,80,.06);
  --sh-hover:0 10px 28px rgba(18,40,80,.12);
  --t:200ms ease-out;
  --gap:28px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:92px;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:700;line-height:1.3;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container,.grid-container{max-width:1200px;width:100%;margin:0 auto;padding-left:20px;padding-right:20px;}
.grid-x{margin-left:-14px;margin-right:-14px;}
.grid-x>.cell{padding-left:14px;padding-right:14px;}
.section{padding:88px 0;}
.section-sm{padding:60px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--c-primary);background:var(--c-primary-tint);border-radius:999px;padding:5px 14px;margin-bottom:14px;}
h2{font-size:32px;margin-bottom:14px;}
h3{font-size:20px;}
.lead{font-size:16px;color:var(--c-text-2);}
.muted{color:var(--c-text-2);font-size:14px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:56px;padding:0 32px;font-size:17px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 2px 8px rgba(16,99,206,.24);}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(16,99,206,.28);}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-dark);}
.btn-primary[disabled],.btn-primary.is-disabled{background:#A9BED8;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 2px 8px rgba(255,106,43,.26);}
.btn-accent:hover{background:#EA5A1C;transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,106,43,.3);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1.5px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-tint);transform:translateY(-2px);}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.6);}
.btn-light:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:15px;font-weight:600;}
.link-arrow::after{content:"→";transition:transform var(--t);}
.link-arrow:hover::after{transform:translateX(3px);}
.link-arrow:hover{text-decoration:underline;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-primary-tint);border-bottom:1px solid var(--c-primary-line);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:38px;}
.topbar-inner p{font-size:13px;color:#2E4A6B;}
.topbar-inner a{font-size:13px;color:var(--c-primary);font-weight:600;}
.topbar-inner a:hover{text-decoration:underline;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow var(--t);}
.site-header.is-scrolled{box-shadow:0 2px 14px rgba(18,40,80,.09);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-text);white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,#1B7BE0,#0B4FA6);
  color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;
}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{position:relative;padding:10px 13px;font-size:15px;color:#33414F;border-radius:8px;transition:color var(--t),background-color var(--t);}
.nav-links a::after{content:"";position:absolute;left:50%;right:50%;bottom:3px;height:2px;background:var(--c-primary);border-radius:2px;transition:left var(--t),right var(--t);}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{left:13px;right:13px;}
.nav-links a[aria-current="page"]{color:var(--c-primary);font-weight:600;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:20px;height:2px;background:#33414F;position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:#33414F;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-overlay{position:fixed;inset:0;background:rgba(18,24,31,.44);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:70;}
.nav-overlay.is-open{opacity:1;visibility:visible;}
.nav-close{display:none;position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);font-size:20px;line-height:1;color:#33414F;}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:80px 18px 28px;transform:translateX(106%);
    transition:transform var(--t);box-shadow:-12px 0 34px rgba(18,40,80,.14);
    z-index:80;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{padding:14px 14px;font-size:16px;border-radius:10px;}
  .nav-links a::after{display:none;}
  .nav-links a[aria-current="page"]{background:var(--c-primary-tint);}
  .nav-close{display:block;}
  .nav-right>.btn{display:none;}
}

/* ---------- 页头 ---------- */
.cat4-hero{
  position:relative;color:#fff;overflow:hidden;
  background:#0E5AB8 url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:56px 0 64px;
}
.cat4-hero::before{content:"";position:absolute;inset:0;background:rgba(14,74,152,.86);}
.cat4-hero .grid-container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:20px;}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{opacity:.6;}
.cat4-hero h1{font-size:42px;line-height:1.25;margin-bottom:16px;color:#fff;}
.cat4-hero .hero-sub{font-size:17px;color:rgba(255,255,255,.9);max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
  display:inline-block;font-size:13px;padding:5px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.34);color:#fff;
}
.hero-figure{margin-top:28px;}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);box-shadow:0 14px 34px rgba(6,36,74,.3);}
@media (min-width:768px){.hero-figure{margin-top:0;}}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;align-items:flex-start;gap:12px;
  background:var(--c-primary-tint);border-left:4px solid var(--c-primary);
  border-radius:10px;padding:14px 16px;font-size:14px;color:#2E4A6B;
  position:relative;margin-top:24px;
}
.notice strong{color:var(--c-primary-dark);}
.notice-close{margin-left:auto;font-size:18px;line-height:1;color:#5A6672;padding:2px 6px;border-radius:6px;}
.notice-close:hover{background:rgba(16,99,206,.12);color:var(--c-primary);}

/* ---------- 速查 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.quick-card{
  background:var(--c-card);border-radius:var(--r-card);padding:26px 24px;
  box-shadow:var(--sh-card);border:1px solid var(--c-line);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--c-primary-line);}
.quick-num{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--c-primary-tint);color:var(--c-primary);font-weight:700;font-size:16px;margin-bottom:16px;
}
.quick-card h3{font-size:18px;margin-bottom:10px;}
.quick-card p{font-size:14px;color:var(--c-text-2);}
.quick-card .link-arrow{margin-top:14px;font-size:14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.tag-row span{font-size:13px;padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);transition:var(--t);}
.tag-row span:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-tint);}
@media (max-width:1023px){.quick-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.quick-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-panel{background:var(--c-card);border-radius:var(--r-card);border:1px solid var(--c-line);box-shadow:var(--sh-card);padding:8px 26px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:22px 0;font-size:17px;font-weight:600;color:var(--c-text);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-icon{position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:var(--c-primary-tint);transition:background-color var(--t);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--c-primary);border-radius:2px;transform:translate(-50%,-50%);}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:transform var(--t),opacity var(--t);}
.faq-item.is-open .faq-icon{background:var(--c-primary);}
.faq-item.is-open .faq-icon::before{background:#fff;}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) scaleY(0);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 260ms ease-out;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{padding:0 0 22px;font-size:15px;color:var(--c-text-2);max-width:56ch;}

/* ---------- 表单 ---------- */
.form-card{
  background:var(--c-card);border-radius:var(--r-card);border:1px solid var(--c-line);
  box-shadow:var(--sh-card);padding:30px 28px;
}
.form-card h3{font-size:22px;margin-bottom:8px;}
.form-card>.muted{margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:#26313D;}
.req{color:var(--c-accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-input);
  background:#FBFCFE;padding:12px 14px;font-size:15px;color:var(--c-text);
  transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#9AA7B4;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(16,99,206,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D93A2B;background:#FDF6F5;}
.field.has-error input:focus,.field.has-error textarea:focus,.field.has-error select:focus{box-shadow:0 0 0 3px rgba(217,58,43,.14);}
.field-error{display:none;font-size:13px;color:#C22F21;margin-top:6px;}
.field.has-error .field-error{display:block;}
.form-privacy{font-size:12.5px;color:var(--c-text-2);line-height:1.7;margin-top:14px;}
.form-feedback{display:none;border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:16px;}
.form-feedback.is-success{display:block;background:#E9F6EE;border-left:4px solid #1E9E5A;color:#146B3C;}
.form-feedback.is-error{display:block;background:#FDF0EE;border-left:4px solid #D93A2B;color:#A5271A;}
@media (max-width:767px){.form-card{padding:24px 20px;}}

/* ---------- 数据条 ---------- */
.cat4-stats{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:44px 0;}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:6px 22px;border-left:1px solid var(--c-line);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item strong{display:block;font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat-item span{display:block;font-size:14px;color:var(--c-text-2);margin-top:6px;}
@media (max-width:767px){
  .stat-row{grid-template-columns:repeat(2,1fr);row-gap:24px;}
  .stat-item{border-left:0;padding-left:0;padding-right:12px;}
}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  background:linear-gradient(180deg,#F2F7FE,#E9F1FD);
  border:1.5px solid var(--c-primary-line);border-radius:20px;
  padding:56px 40px;text-align:center;
}
.cta-card h2{margin-bottom:14px;}
.cta-card p{color:var(--c-text-2);max-width:640px;margin:0 auto 28px;}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;}
@media (max-width:767px){.cta-card{padding:40px 22px;}}

/* ---------- 页脚 ---------- */
.site-footer{background:#0C1A2B;color:#C4D2E0;padding:64px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:#C4D2E0;transition:color var(--t);}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;}
.footer-col ul li span{color:#93A6BA;}
.site-footer .brand{color:#fff;margin-bottom:14px;}
.footer-desc{color:#93A6BA;font-size:14px;line-height:1.8;margin-bottom:18px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{font-size:12.5px;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.08);color:#C4D2E0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;
  font-size:13px;color:#7F93A8;
}
@media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:28px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;}}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:65;
  background:#fff;box-shadow:0 -4px 18px rgba(18,40,80,.12);
  transform:translateY(110%);transition:transform var(--t);
  padding-bottom:env(safe-area-inset-bottom);
}
.sticky-cta.is-visible{transform:translateY(0);}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:64px;}
.sticky-inner p{font-size:15px;color:#26313D;font-weight:600;}
.sticky-close{font-size:20px;line-height:1;color:#8C9AA8;padding:6px 10px;border-radius:8px;}
.sticky-close:hover{background:var(--c-bg);color:var(--c-primary);}
@media (max-width:1023px){
  .sticky-cta{transform:translateY(0);}
  .sticky-inner{min-height:60px;}
  .sticky-inner p{font-size:14px;}
}

/* ---------- 滚动入场 ---------- */
body.js-ready .reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms ease-out,transform 420ms ease-out;}
body.js-ready .reveal.is-in{opacity:1;transform:none;}

@media (max-width:1023px){
  .section{padding:64px 0;}
  h2{font-size:26px;}
  .cat4-hero h1{font-size:32px;}
  .cat4-hero{padding:44px 0 52px;}
}
@media (max-width:575px){
  .container,.grid-container{padding-left:16px;padding-right:16px;}
  .grid-x{margin-left:-12px;margin-right:-12px;}
  .grid-x>.cell{padding-left:12px;padding-right:12px;}
  .section{padding:56px 0;}
  h2{font-size:23px;}
  h1,.cat4-hero h1{font-size:28px;}
  .btn{width:100%;}
  .btn-inline{width:auto;}
  .cta-actions .btn{width:100%;}
  .topbar-inner p{font-size:12px;}
}