/* roulang page: index */
:root{
  --brand:#1A56DB;
  --brand-700:#1444B0;
  --brand-50:#EEF4FF;
  --accent:#00B08B;
  --warm:#FF8A3D;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#EEF2F7;
  --border:#E5EAF2;
  --t1:#0B1526;
  --t2:#334155;
  --t3:#64748B;
  --t4:#94A3B8;
  --r-card:16px;
  --r-lg:22px;
  --r-btn:12px;
  --r-input:10px;
  --sh-sm:0 1px 2px rgba(16,32,64,.06);
  --sh-md:0 4px 16px rgba(16,32,64,.08);
  --sh-lg:0 12px 32px rgba(16,32,64,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:80px 0;}
.section-sm{padding:52px 0;}
.section-alt{background:var(--bg);}
.section-white{background:var(--card);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand);background:var(--brand-50);
  border:1px solid #DCE7FF;border-radius:999px;padding:5px 14px;font-weight:600;
}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.sec-title{
  font-size:28px;font-weight:700;color:var(--t1);line-height:1.35;
  padding-left:14px;position:relative;letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:var(--brand);border-radius:2px;
}
.sec-desc{font-size:14px;color:var(--t3);margin-top:8px;padding-left:14px;}
.more-link{font-size:14px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:gap .18s ease-out;}
.more-link:hover{gap:10px;}

/* 公告条 */
.notice-bar{background:var(--t1);color:#D8E2F2;font-size:13px;}
.notice-inner{display:flex;align-items:center;gap:12px;justify-content:center;padding:9px 24px;text-align:center;}
.notice-tag{background:var(--brand);color:#fff;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:600;}
.notice-inner a{color:#fff;border-bottom:1px solid rgba(255,255,255,.45);}
.notice-inner a:hover{color:#BDD3FF;}
.notice-close{margin-left:auto;color:#94A3B8;font-size:16px;line-height:1;padding:4px;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .18s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-icon{width:30px;height:30px;flex-shrink:0;}
.logo-text{font-size:17px;font-weight:700;color:var(--t1);letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:10px;}
.nav-link{
  position:relative;font-size:14px;color:var(--t2);padding:8px 12px;border-radius:8px;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--brand);background:var(--brand-50);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:210px;
  border:1px solid var(--border);border-radius:var(--r-input);
  background:#FBFCFE;padding:0 12px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(26,86,219,.10);background:#fff;}
.search-box input{flex:1;border:none;background:transparent;outline:none;font-size:14px;min-width:0;}
.search-box input::placeholder{color:var(--t4);}
.nav-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--t1);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-ghost{background:#fff;color:var(--t2);border-color:var(--border);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-arrow svg{transition:transform .18s ease-out;}
.btn-arrow:hover svg{transform:translateX(3px);}

/* Hero */
.hero{position:relative;overflow:hidden;background:#0B1526;}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,21,38,.94) 0%,rgba(11,21,38,.82) 42%,rgba(11,21,38,.35) 78%,rgba(11,21,38,.15) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:92px;padding-bottom:92px;min-height:560px;display:flex;align-items:center;}
.hero-text{max-width:640px;color:#fff;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:#CFE0FF;background:rgba(26,86,219,.28);border:1px solid rgba(129,168,255,.42);
  border-radius:999px;padding:6px 14px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
  margin:20px 0 16px;
}
.hero-sub{font-size:17px;color:#C7D6EE;line-height:1.75;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:0;margin-top:36px;}
.hero-trust li{
  font-size:13px;color:#B9CAE5;padding:0 18px;border-left:1px solid rgba(255,255,255,.22);line-height:1.6;
}
.hero-trust li:first-child{padding-left:0;border-left:none;}
.hero-trust strong{display:block;font-size:17px;color:#fff;font-weight:700;}

/* 横滑片库 */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 18px;-webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  scroll-snap-align:start;flex:0 0 288px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card); overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:rgba(26,86,219,.35);}
.rail-thumb{position:relative;aspect-ratio:16/9;background:#EEF2F7;overflow:hidden;}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out;}
.rail-card:hover .rail-thumb img{transform:scale(1.03);}
.rail-tag{
  position:absolute;left:12px;top:12px;font-size:12px;font-weight:600;
  background:rgba(11,21,38,.62);color:#fff;border-radius:999px;padding:3px 10px;
}
.rail-body{padding:16px 18px 18px;}
.rail-body h3{font-size:17px;font-weight:600;color:var(--t1);line-height:1.5;}
.rail-body p{font-size:14px;color:var(--t3);margin-top:6px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.rail-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:13px;color:var(--t4);}
.rail-nav{display:flex;gap:10px;}
.rail-btn{
  width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--border);
  box-shadow:var(--sh-sm);display:inline-flex;align-items:center;justify-content:center;
  color:var(--t2);transition:border-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,opacity .18s ease-out;
}
.rail-btn:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--sh-md);}
.rail-btn[disabled]{opacity:.4;cursor:not-allowed;}

/* 非对称主推 */
.feature-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;}
.feature-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);
  background:#EEF2F7;min-height:380px;display:block;
}
.feature-main img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .18s ease-out;}
.feature-main:hover img{transform:scale(1.03);}
.feature-main-mask{position:absolute;inset:0;background:linear-gradient(0deg,rgba(11,21,38,.88) 0%,rgba(11,21,38,.35) 52%,rgba(11,21,38,.05) 100%);}
.feature-main-body{position:relative;z-index:2;padding:30px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;height:100%;min-height:380px;}
.feature-main-body h3{font-size:22px;font-weight:700;line-height:1.45;margin-top:12px;}
.feature-main-body p{font-size:14px;color:#C7D6EE;margin-top:10px;}
.feature-list{display:flex;flex-direction:column;gap:12px;}
.feature-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:14px;box-shadow:var(--sh-sm);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.feature-item:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(26,86,219,.35);}
.feature-item img{width:96px;height:72px;flex:0 0 96px;object-fit:cover;border-radius:10px;border:1px solid var(--border);background:#EEF2F7;}
.feature-item h3{font-size:15px;font-weight:600;color:var(--t1);line-height:1.5;}
.feature-item p{font-size:13px;color:var(--t3);margin-top:4px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.feature-item .meta{font-size:12px;color:var(--t4);margin-top:6px;display:block;}

/* 分区卡片 */
.grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.brief-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-sm);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.brief-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(26,86,219,.35);}
.brief-num{
  width:34px;height:34px;border-radius:10px;background:var(--brand-50);color:var(--brand);
  font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
}
.brief-card h3{font-size:17px;font-weight:600;color:var(--t1);margin-top:14px;line-height:1.5;}
.brief-card p{font-size:14px;color:var(--t3);margin-top:8px;}
.brief-card .tagline{display:inline-block;font-size:12px;color:var(--accent);background:rgba(0,176,139,.10);border-radius:999px;padding:3px 10px;margin-top:14px;font-weight:600;}

.grid-3col{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.poster-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-sm);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.poster-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:rgba(26,86,219,.35);}
.poster-thumb{position:relative;aspect-ratio:3/4;background:#EEF2F7;overflow:hidden;}
.poster-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out;}
.poster-card:hover .poster-thumb img{transform:scale(1.03);}
.poster-badge{
  position:absolute;right:12px;top:12px;font-size:12px;font-weight:600;color:#fff;
  background:var(--warm);border-radius:999px;padding:3px 10px;
}
.poster-body{padding:16px 18px 20px;}
.poster-body h3{font-size:16px;font-weight:600;color:var(--t1);line-height:1.5;}
.poster-body p{font-size:13px;color:var(--t3);margin-top:8px;}

/* 数据带 */
.stat-band{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-item{border-left:3px solid var(--brand-50);padding-left:18px;}
.stat-item strong{display:block;font-size:30px;font-weight:700;color:var(--brand);line-height:1.3;}
.stat-item span{font-size:14px;color:var(--t3);}
.stat-item em{display:block;font-size:12px;color:var(--t4);font-style:normal;margin-top:2px;}

/* CMS 列表 */
.news-list{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);}
.news-row{
  display:grid;grid-template-columns:120px 1fr 150px;gap:20px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background .18s ease-out;
}
.news-row:last-child{border-bottom:none;}
.news-row:hover{background:#FAFBFD;}
.news-date{font-size:13px;color:var(--t4);line-height:1.5;}
.news-main h3{font-size:17px;font-weight:600;color:var(--t1);line-height:1.5;transition:color .18s ease-out;}
.news-row:hover .news-main h3{color:var(--brand);}
.news-main p{font-size:14px;color:var(--t3);margin-top:6px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.news-meta{display:flex;align-items:center;justify-content:flex-end;gap:12px;}
.badge{
  display:inline-block;font-size:12px;font-weight:600;color:var(--brand);
  background:var(--brand-50);border:1px solid #DCE7FF;border-radius:999px;padding:3px 10px;white-space:nowrap;
}
.badge-accent{color:var(--accent);background:rgba(0,176,139,.10);border-color:rgba(0,176,139,.22);}
.news-arrow{color:var(--t4);transition:transform .18s ease-out,color .18s ease-out;}
.news-row:hover .news-arrow{transform:translateX(4px);color:var(--brand);}
.empty-state{
  border:1px dashed #CBD6E6;background:#FBFCFE;border-radius:var(--r-card);
  padding:44px 24px;text-align:center;margin:24px;
}
.empty-state p{font-size:14px;color:var(--t3);margin-top:12px;}
.empty-state .et{font-size:16px;color:var(--t1);font-weight:600;}
.empty-state .btn{margin-top:18px;}

/* 流程时间轴 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:24px 20px;
  position:relative;box-shadow:var(--sh-sm);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.06em;
}
.step h3{font-size:16px;font-weight:600;color:var(--t1);margin-top:10px;}
.step p{font-size:14px;color:var(--t3);margin-top:8px;}
.step-line{height:2px;background:var(--line);margin-top:18px;border-radius:2px;}
.step-line i{display:block;height:2px;background:var(--brand);border-radius:2px;}

/* CTA 带 */
.cta-band{background:var(--brand-50);border-top:1px solid #DCE7FF;border-bottom:1px solid #DCE7FF;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:48px 0;}
.cta-inner h2{font-size:26px;font-weight:700;color:var(--t1);line-height:1.4;}
.cta-inner p{font-size:15px;color:var(--t3);margin-top:10px;}
.cta-actions{display:flex;gap:14px;flex-shrink:0;}
.cta-note{font-size:13px;color:var(--t4);margin-top:16px;}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start;}
.faq-aside h2{font-size:28px;font-weight:700;color:var(--t1);line-height:1.35;padding-left:14px;position:relative;}
.faq-aside h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--brand);border-radius:2px;}
.faq-aside p{font-size:14px;color:var(--t3);margin-top:16px;}
.faq-aside .btn{margin-top:22px;}
.faq-list{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--t1);cursor:pointer;list-style:none;
  transition:color .18s ease-out,background .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FAFBFD;color:var(--brand);}
.faq-item[open] summary{color:var(--brand);}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;position:relative;color:currentColor;
  transition:transform .18s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{left:4px;right:4px;top:10px;height:2px;}
.faq-icon::after{top:4px;bottom:4px;left:10px;width:2px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--t3);line-height:1.85;}

/* 页脚 */
.site-footer{background:var(--t1);color:#9FB0C9;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;color:#8FA2BE;margin-top:16px;line-height:1.85;max-width:300px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#9FB0C9;transition:color .18s ease-out;}
.footer-col a:hover{color:#fff;}
.footer-contact p{font-size:14px;color:#9FB0C9;margin-bottom:10px;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);margin-top:48px;padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8CA6;
}
.footer-bottom a{color:#9FB0C9;}
.footer-bottom a:hover{color:#fff;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:70;background:#fff;transform:translateX(100%);
  transition:transform .22s ease-out;display:flex;flex-direction:column;padding:0 24px 32px;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:68px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;font-size:24px;color:var(--t2);}
.drawer-nav{padding:20px 0;display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 0;font-size:16px;color:var(--t1);border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:600;}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;border:1px solid var(--border);border-radius:var(--r-input);padding:0 12px;margin-top:8px;background:#FBFCFE;}
.drawer-search input{flex:1;border:none;background:transparent;outline:none;font-size:15px;min-width:0;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:22px;}

@media (max-width:1024px){
  .main-nav,.search-box,.header-right .btn-ghost{display:none;}
  .header-right .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .feature-grid{grid-template-columns:1fr;}
  .grid-3col{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .hero-inner{padding-top:64px;padding-bottom:64px;min-height:420px;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .sec-title{font-size:23px;}
  .rail-card{flex:0 0 72vw;}
  .grid-2x2{grid-template-columns:1fr;}
  .news-row{grid-template-columns:1fr;gap:10px;padding:18px;}
  .news-meta{justify-content:flex-start;}
  .news-row .news-date{font-size:12px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px;}
  .logo-text{font-size:15px;}
  .grid-3col{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-trust{flex-direction:column;gap:12px;}
  .hero-trust li{padding-left:0;border-left:none;border-top:1px solid rgba(255,255,255,.16);padding-top:10px;}
  .hero-trust li:first-child{border-top:none;padding-top:0;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root{
  --brand:#1A56DB; --brand-700:#1444B0; --brand-50:#EEF4FF;
  --accent:#00B08B; --warm:#FF8A3D;
  --bg:#F7F9FC; --card:#FFFFFF; --line:#EEF2F7; --border:#E5EAF2;
  --t1:#0B1526; --t2:#334155; --t3:#64748B; --t4:#94A3B8;
  --r-card:16px; --r-lg:22px; --r-btn:12px; --r-in:10px; --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,32,64,.06);
  --sh-md:0 4px 16px rgba(16,32,64,.08);
  --sh-lg:0 12px 32px rgba(16,32,64,.10);
  --sp-section:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--t2);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:15.5px;line-height:1.8;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color 180ms ease-out;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t1);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1280px){.container{max-width:1240px;padding:0 32px;}}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(26,86,219,.14);border-radius:8px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 18px;height:44px;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform 180ms ease-out,background-color 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;white-space:nowrap;}
.btn-sm{height:38px;padding:0 14px;font-size:13.5px;}
.btn-lg{height:50px;padding:0 24px;font-size:15.5px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--t1);border-color:var(--border);}
.btn-ghost:hover{border-color:rgba(26,86,219,.35);color:var(--brand);transform:translateY(-1px);}
.btn-soft{background:var(--brand-50);color:var(--brand);}
.btn-soft:hover{background:#E1EBFF;transform:translateY(-1px);}
.btn-arrow svg{transition:transform 180ms ease-out;}
.btn-arrow:hover svg{transform:translateX(3px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow 180ms ease-out;}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo-icon{width:28px;height:28px;flex:none;}
.logo-text{font-size:16.5px;font-weight:700;color:var(--t1);letter-spacing:-.01em;}
.main-nav{display:none;align-items:center;gap:6px;margin-left:8px;}
.nav-link{position:relative;padding:8px 10px;font-size:14px;color:var(--t2);border-radius:10px;}
.nav-link::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;background:var(--brand);transform:scaleX(0);transition:transform 180ms ease-out;border-radius:2px;}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-right{display:none;align-items:center;gap:10px;margin-left:auto;}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;background:#F7F9FC;border:1px solid var(--border);border-radius:var(--r-pill);width:210px;}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:13.5px;}
.search-box input::placeholder{color:var(--t4);}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(26,86,219,.10);}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;margin-left:auto;background:#fff;border:1px solid var(--border);border-radius:12px;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--t1);border-radius:2px;transition:transform 180ms ease-out,opacity 180ms ease-out;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.mobile-drawer.is-open{display:block;}
.drawer-panel{padding:16px 0 22px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:14px;}
.drawer-links a{padding:13px 12px;border-radius:12px;font-size:15px;font-weight:600;color:var(--t1);}
.drawer-links a.is-active{background:var(--brand-50);color:var(--brand);}
.drawer-actions{display:flex;flex-direction:column;gap:10px;}
.drawer-actions .btn{width:100%;}
@media(min-width:1024px){
  .main-nav{display:flex;}
  .header-right{display:flex;}
  .nav-toggle{display:none;}
  .mobile-drawer{display:none !important;}
}

/* ---------- page head ---------- */
.page-head{background:#fff;border-bottom:1px solid var(--line);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:18px 0 0;font-size:13px;color:var(--t3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--t4);}
.breadcrumb .current{color:var(--t1);font-weight:600;}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;}
.badge-soft{background:var(--brand-50);color:var(--brand);}
.badge-line{background:#fff;border:1px solid var(--border);color:var(--t3);}
.badge-accent{background:rgba(0,176,139,.10);color:#02705A;}

.article-head{padding:20px 0 30px;}
.article-head h1{font-size:clamp(26px,3.4vw,38px);line-height:1.28;font-weight:700;margin:14px 0 12px;}
.article-lead{font-size:16px;color:var(--t3);max-width:820px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:16px;font-size:13px;color:var(--t3);}
.article-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- layout ---------- */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:48px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap;}
.section-title{position:relative;font-size:clamp(21px,2.4vw,27px);font-weight:700;padding-left:14px;}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand);}
.section-sub{font-size:13.5px;color:var(--t3);margin-top:6px;padding-left:14px;}

.article-layout{display:grid;grid-template-columns:1fr;gap:32px;align-items:start;}
@media(min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:36px;}}
.article-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 20px;box-shadow:var(--sh-sm);}
@media(min-width:768px){.article-main{padding:34px 34px 38px;}}
.article-cover{margin-bottom:22px;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;background:#EEF2F7;}
.article-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;}

/* ---------- article content ---------- */
.article-content{font-size:16px;line-height:1.85;color:var(--t2);}
.article-content>*+*{margin-top:18px;}
.article-content p{margin:0;}
.article-content h2{font-size:clamp(20px,2.3vw,25px);line-height:1.4;font-weight:700;margin-top:40px;padding-left:12px;border-left:3px solid var(--brand);}
.article-content h3{font-size:18px;line-height:1.5;font-weight:600;margin-top:28px;color:var(--t1);}
.article-content h4{font-size:16px;font-weight:600;margin-top:22px;}
.article-content ul,.article-content ol{padding-left:0;display:flex;flex-direction:column;gap:10px;}
.article-content ul li,.article-content ol li{position:relative;padding-left:26px;}
.article-content ul li::before{content:"";position:absolute;left:6px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--brand);opacity:.85;}
.article-content ol{counter-reset:olc;}
.article-content ol li{counter-increment:olc;}
.article-content ol li::before{content:counter(olc);position:absolute;left:0;top:4px;width:20px;height:20px;border-radius:6px;background:var(--brand-50);color:var(--brand);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.article-content blockquote{margin:24px 0;padding:16px 20px;background:#F7F9FC;border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:var(--t2);}
.article-content img{border-radius:12px;border:1px solid var(--border);margin:6px auto;}
.article-content figure{margin:22px 0;}
.article-content figcaption{font-size:13px;color:var(--t4);text-align:center;margin-top:8px;}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--brand-700);}
.article-content strong{color:var(--t1);}
.article-content table{width:100%;border-collapse:collapse;font-size:14.5px;display:block;overflow-x:auto;border:1px solid var(--border);border-radius:12px;}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;}
.article-content th{background:#F7F9FC;color:var(--t1);font-weight:600;}
.article-content tbody tr:nth-child(even){background:#FAFBFD;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:30px 0;}

/* ---------- tags / pager ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);}
.tag-row .tag-label{font-size:13px;color:var(--t3);}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:#F7F9FC;border:1px solid var(--border);font-size:13px;color:var(--t2);}
.tag:hover{border-color:rgba(26,86,219,.35);color:var(--brand);}
.pager-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:34px;}
@media(min-width:640px){.pager-grid{grid-template-columns:1fr 1fr;}}
.pager-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-sm);transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(26,86,219,.20);}
.pager-card .pager-label{font-size:12.5px;color:var(--t3);}
.pager-card .pager-title{display:block;margin-top:6px;font-size:15px;font-weight:600;color:var(--t1);line-height:1.5;}
.pager-card:hover .pager-title{color:var(--brand);}
.pager-card.is-end{background:#FAFBFD;border-style:dashed;}

/* ---------- sidebar ---------- */
.article-sidebar{display:flex;flex-direction:column;gap:18px;}
@media(min-width:1024px){.article-sidebar{position:sticky;top:88px;}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-sm);}
.side-title{font-size:16px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.side-title .bar{width:3px;height:16px;border-radius:3px;background:var(--brand);}
.hot-list{display:flex;flex-direction:column;}
.hot-list li+li{border-top:1px solid var(--line);}
.hot-list a{display:flex;gap:12px;padding:12px 0;font-size:14.5px;line-height:1.6;color:var(--t2);}
.hot-list a:hover{color:var(--brand);}
.hot-list .num{flex:none;width:22px;height:22px;border-radius:7px;background:#F7F9FC;color:var(--t3);font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.hot-list li:nth-child(1) .num,.hot-list li:nth-child(2) .num,.hot-list li:nth-child(3) .num{background:var(--brand-50);color:var(--brand);}
.side-nav{display:flex;flex-direction:column;gap:6px;}
.side-nav a{display:flex;align-items:center;justify-content:space-between;padding:11px 12px;border-radius:10px;font-size:14.5px;color:var(--t2);}
.side-nav a:hover{background:#F7F9FC;color:var(--brand);}
.side-nav a span{color:var(--t4);font-size:12.5px;}
.cta-card{background:var(--brand-50);border:1px solid #DCE7FF;border-radius:var(--r-card);padding:20px;}
.cta-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.cta-card p{font-size:13.5px;color:var(--t2);margin-bottom:14px;}
.cta-card .btn{width:100%;}
.cta-card .hint{font-size:12.5px;color:var(--t3);margin-top:10px;margin-bottom:0;}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:rgba(26,86,219,.20);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF2F7;border-bottom:1px solid var(--line);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out;}
.card:hover .card-cover img{transform:scale(1.03);}
.card-cover .badge{position:absolute;left:12px;top:12px;background:rgba(26,86,219,.92);color:#fff;}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-title{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--t1);}
.card:hover .card-title{color:var(--brand);}
.card-desc{font-size:13.5px;color:var(--t3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;padding-top:10px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--t4);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:40px;}}
.faq-intro p{font-size:14.5px;color:var(--t3);margin-top:12px;}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 20px;font-size:16px;font-weight:600;color:var(--t1);cursor:pointer;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{flex:none;width:22px;height:22px;border-radius:7px;background:var(--brand-50);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;transition:transform 180ms ease-out;}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-answer{padding:0 20px 20px;font-size:14.5px;color:var(--t2);}

/* ---------- CTA band ---------- */
.cta-band{background:var(--brand-50);border-top:1px solid #DCE7FF;border-bottom:1px solid #DCE7FF;}
.cta-band .inner{display:flex;flex-direction:column;gap:20px;padding:52px 0;}
@media(min-width:1024px){.cta-band .inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;padding:56px 0;}}
.cta-band h2{font-size:clamp(21px,2.5vw,28px);font-weight:700;}
.cta-band p{font-size:14.5px;color:var(--t2);margin-top:10px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-note{font-size:13px;color:var(--t3);margin-top:14px;}

/* ---------- empty state ---------- */
.empty-state{border:1px dashed var(--border);background:#FAFBFD;border-radius:var(--r-card);padding:44px 24px;text-align:center;}
.empty-state .icon{width:46px;height:46px;margin:0 auto 14px;border-radius:14px;background:var(--brand-50);color:var(--brand);display:flex;align-items:center;justify-content:center;}
.empty-state h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--t3);margin-bottom:18px;}

/* ---------- footer ---------- */
.site-footer{background:#0B1526;color:#C7D2E4;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;padding:56px 0 34px;}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}}
.footer-brand .logo-text{color:#fff;font-size:16px;}
.footer-brand p{font-size:13.5px;color:#93A2BC;margin-top:14px;max-width:320px;line-height:1.8;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:#A9B7CD;}
.footer-col a:hover{color:#fff;}
.footer-contact p{font-size:13.5px;color:#A9B7CD;line-height:1.8;margin-bottom:10px;}
.footer-contact span{color:#E4EAF4;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{display:flex;flex-direction:column;gap:10px;padding:18px 0;border-top:1px solid rgba(255,255,255,.10);font-size:13px;color:#8B9AB4;}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}
.footer-bottom a{color:#C7D2E4;}
.footer-bottom a:hover{color:#fff;}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --brand:#1A56DB;
  --brand-700:#1444B0;
  --brand-50:#EEF4FF;
  --accent:#00B08B;
  --warm:#FF8A3D;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#EEF2F7;
  --border:#E5EAF2;
  --t1:#0B1526;
  --t2:#334155;
  --t3:#64748B;
  --t4:#94A3B8;
  --r-card:16px;
  --r-lg:22px;
  --r-btn:12px;
  --r-input:10px;
  --sh-sm:0 1px 2px rgba(16,32,64,.06);
  --sh-md:0 4px 16px rgba(16,32,64,.08);
  --sh-lg:0 12px 32px rgba(16,32,64,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--t2);
  background:var(--bg);
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.25;letter-spacing:-.01em}
h2{font-size:clamp(22px,2.6vw,29px);line-height:1.35}
h3{font-size:18px;line-height:1.5;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(26,86,219,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{max-width:1280px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease-out,background .18s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-icon{width:28px;height:28px;flex:0 0 auto}
.logo-text{font-size:15px;font-weight:700;color:var(--t1);letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:12px}
.nav-link{
  position:relative;font-size:14px;color:var(--t2);padding:6px 0;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;
  background:var(--brand);border-radius:2px;transform:translateX(-50%);
  transition:width .18s ease-out;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{width:100%}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:210px;height:42px;padding:0 14px;
  background:#F9FBFE;border:1px solid var(--border);border-radius:var(--r-input);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(26,86,219,.10)}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--t1);line-height:1.4;
}
.search-box input::placeholder{color:var(--t4)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--border)}
.btn-ghost:hover{border-color:rgba(26,86,219,.4);background:var(--brand-50);transform:translateY(-1px)}
.btn-light{background:rgba(255,255,255,.92);color:var(--t1);border-color:rgba(255,255,255,.9)}
.btn-light:hover{background:#fff;transform:translateY(-1px)}
.btn-arrow svg{transition:transform .18s ease-out}
.btn-arrow:hover svg{transform:translateX(3px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;
  border-radius:var(--r-input);flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-mobile-extra{display:none}

/* ---------- 页头 ---------- */
.page-hero{position:relative;overflow:hidden;background:#0B1526}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.58}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,21,38,.92) 0%,rgba(11,21,38,.72) 42%,rgba(11,21,38,.28) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:64px 0 68px;max-width:760px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .current{color:rgba(255,255,255,.94)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.7;
}
.badge-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.24)}
.badge-brand{background:var(--brand-50);color:var(--brand)}
.badge-accent{background:rgba(0,176,139,.10);color:#00846A}
.page-hero h1{color:#fff;margin:16px 0 14px;max-width:16em}
.hero-sub{color:rgba(255,255,255,.82);font-size:16px;max-width:34em}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stat strong{display:block;font-size:22px;color:#fff;letter-spacing:.01em}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.66)}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:30px}
.section-head h2{position:relative;padding-left:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:var(--brand);
}
.section-head p{margin-top:10px;color:var(--t3);font-size:15px}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section-head.row .rail-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.link-more{color:var(--brand);font-size:14px;font-weight:600;white-space:nowrap}
.link-more:hover{color:var(--brand-700)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{
  position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(26,86,219,.22)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;background:var(--brand-50);
  color:var(--brand);font-weight:700;font-size:15px;margin-bottom:14px;
}
.step h3{margin-bottom:8px}
.step p{font-size:14.5px;color:var(--t3);line-height:1.75}
.step-tag{
  display:inline-block;margin-top:14px;font-size:12px;font-weight:600;color:#00846A;
  background:rgba(0,176,139,.10);border-radius:999px;padding:3px 10px;
}

/* ---------- 横滑卡片 ---------- */
.rail-nav-btn{
  width:38px;height:38px;border-radius:999px;background:#fff;border:1px solid var(--border);
  box-shadow:var(--sh-sm);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  color:var(--t2);transition:transform .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.rail-nav-btn:hover{box-shadow:var(--sh-md);color:var(--brand);transform:translateY(-1px)}
.rail{
  display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 10px;margin:0 -2px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 292px;scroll-snap-align:start;background:var(--card);
  border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-sm);display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(26,86,219,.22)}
.rail-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF2F7;border-bottom:1px solid var(--border)}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.rail-card:hover .rail-cover img{transform:scale(1.03)}
.rail-cover .badge{position:absolute;left:12px;top:12px;background:rgba(11,21,38,.62);color:#fff}
.rail-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.rail-body h3{font-size:16.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rail-body p{font-size:14px;color:var(--t3);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.rail-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--t4);padding-top:8px}

/* ---------- 非对称分栏 ---------- */
.split{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:start}
.split-main{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-sm)}
.split-main h2{margin-bottom:6px}
.split-main>p{color:var(--t3);font-size:14.5px;margin-bottom:20px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 22px}
.check-item{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--t2)}
.check-item svg{flex:0 0 auto;margin-top:5px}
.split-side{display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--brand-50);border:1px solid rgba(26,86,219,.16);border-radius:var(--r-card);padding:24px;
}
.side-card h3{margin-bottom:10px;font-size:17px}
.side-card p{font-size:14.5px;color:var(--t2);line-height:1.75}
.side-card .btn{margin-top:16px;width:100%}
.side-note{font-size:12.5px;color:var(--t3);margin-top:10px}

/* ---------- 常见卡点 ---------- */
.issue-list{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm)}
.issue-item{
  display:grid;grid-template-columns:52px 1.1fr 1.6fr;gap:18px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background .18s ease-out;
}
.issue-item:last-child{border-bottom:0}
.issue-item:hover{background:#FAFBFD}
.issue-num{font-size:15px;font-weight:700;color:var(--brand);letter-spacing:.02em}
.issue-item h3{font-size:16.5px}
.issue-item p{font-size:14.5px;color:var(--t3)}
.issue-tag{display:inline-block;margin-top:6px;font-size:12px;font-weight:600;color:#B45309;background:rgba(255,138,61,.12);border-radius:999px;padding:2px 10px}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--t1);border-radius:26px;padding:38px 34px;color:#fff}
.stats-band-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:26px}
.stats-band-head h2{color:#fff}
.stats-band-head p{color:rgba(255,255,255,.66);font-size:14.5px;margin-top:8px;max-width:44em}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-item{border-top:1px solid rgba(255,255,255,.16);padding-top:16px}
.stat-item strong{display:block;font-size:26px;color:#fff}
.stat-item strong em{font-style:normal;font-size:14px;color:rgba(255,255,255,.7);margin-left:4px}
.stat-item span{font-size:13px;color:rgba(255,255,255,.62)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 2fr;gap:32px;align-items:start}
.faq-left h2{padding-left:14px;position:relative}
.faq-left h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:var(--brand)}
.faq-left p{margin-top:12px;color:var(--t3);font-size:14.5px}
.faq-left .btn{margin-top:18px}
.faq-list{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;cursor:pointer;font-size:16px;font-weight:600;color:var(--t1);list-style:none;
  transition:color .18s ease-out,background .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand);background:#FAFBFD}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .18s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:4px;right:4px;top:10px;height:2px}
.faq-icon::after{top:4px;bottom:4px;left:10px;width:2px}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px;font-size:14.5px;color:var(--t3);line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-50);border:1px solid rgba(26,86,219,.14);border-radius:26px;padding:36px 34px}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{max-width:22em}
.cta-inner .cta-desc{margin-top:10px;font-size:15px;color:var(--t3);max-width:36em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-note{width:100%;font-size:13px;color:var(--t3);margin-top:18px;padding-top:16px;border-top:1px solid rgba(26,86,219,.14)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--t1);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:14px;font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;max-width:26em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-col a:hover{color:#fff}
.footer-contact p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;margin-bottom:10px}
.footer-contact span{color:rgba(255,255,255,.86)}
.footer-contact strong{color:rgba(255,255,255,.86);font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.68)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:68px;left:0;right:0;bottom:0;z-index:65;
    background:#fff;border-top:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:18px 24px 32px;
    overflow-y:auto;transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:transform .18s ease-out,opacity .18s ease-out;
  }
  .main-nav.is-open{transform:none;opacity:1;pointer-events:auto}
  .main-nav .nav-link{font-size:16px;padding:14px 0;border-bottom:1px solid var(--line)}
  .main-nav .nav-link::after{display:none}
  .nav-mobile-extra{display:flex;flex-direction:column;gap:12px;margin-top:18px}
  .nav-mobile-extra .btn{width:100%}
  .nav-toggle{display:flex}
  .search-box,.header-right .btn-ghost{display:none}
  .split{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-hero-inner{padding:52px 0 56px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:44px 0}
  .steps{grid-template-columns:1fr}
  .rail-card{flex:0 0 72vw}
  .issue-item{grid-template-columns:1fr;gap:8px;padding:18px}
  .stats-band{padding:28px 22px;border-radius:20px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .cta-band{padding:26px 20px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .split-main{padding:22px}
  .check-list{grid-template-columns:1fr}
  .section-head.row{flex-direction:column;align-items:flex-start}
  .page-hero-inner{max-width:none}
  .hero-stats{gap:22px}
  .footer-grid{grid-template-columns:1fr}
  .logo-text{font-size:14px;white-space:normal}
  .main-nav{top:64px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root{
  --brand:#1A56DB;
  --brand-700:#1444B0;
  --brand-50:#EEF4FF;
  --brand-soft:rgba(26,86,219,.20);
  --accent:#00B08B;
  --accent-50:#E6F7F3;
  --warm:#FF8A3D;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#EEF2F7;
  --border:#E5EAF2;
  --ink:#0B1526;
  --text:#334155;
  --muted:#64748B;
  --faint:#94A3B8;
  --placeholder:#EEF2F7;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,32,64,.06);
  --sh-md:0 4px 16px rgba(16,32,64,.08);
  --sh-lg:0 12px 32px rgba(16,32,64,.10);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-700)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(26,86,219,.5);outline-offset:2px;border-radius:6px}
::selection{background:rgba(26,86,219,.15)}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:640px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1280px){.container{max-width:1280px;padding-left:32px;padding-right:32px}}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-icon{width:28px;height:28px;flex:none}
.logo-text{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.01em}
.logo:hover .logo-text{color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;height:38px;padding:0 12px;
  font-size:14px;color:var(--text);border-radius:10px;
  transition:color var(--ease),background var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transition:transform var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 12px;width:210px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-input);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(26,86,219,.10)}
.search-box svg{flex:none}
.search-box input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--ink);font-family:inherit;
}
.search-box input::placeholder{color:var(--faint)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--brand-soft);color:var(--brand)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-block{width:100%}
.btn-arrow svg{transition:transform var(--ease)}
.btn-arrow:hover svg{transform:translateX(3px)}

.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:#fff;border:1px solid var(--border);border-radius:12px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--ease),opacity var(--ease)}

/* ============ 页头区（居中窄幅） ============ */
.hub-hero{
  background:#EFF4FE;
  border-bottom:1px solid var(--line);
  padding:34px 0 44px;
  text-align:center;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;
  font-size:13px;color:var(--faint);margin-bottom:18px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--ink);font-weight:500}
.hub-hero h1{
  font-size:clamp(26px,4vw,40px);
  line-height:1.25;
  max-width:860px;margin:0 auto;
}
.hub-sub{margin-top:14px;font-size:16px;color:var(--muted)}
.hero-stats{margin-top:24px;display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-pill);
  font-size:13.5px;color:var(--text);box-shadow:var(--sh-sm);
}
.stat-pill b{color:var(--brand);font-weight:700}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none}

/* ============ 版面 ============ */
.block{padding:52px 0}
@media (min-width:1024px){.block{padding:84px 0}}
.block-cream{background:#F1F4F9}
.block-head{margin-bottom:28px}
@media (min-width:1024px){.block-head{margin-bottom:36px}}
.sec-h2{position:relative;padding-left:14px;font-size:clamp(22px,2.6vw,28px)}
.sec-h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand);
}
.sec-desc{margin-top:12px;font-size:14.5px;color:var(--muted);max-width:760px}

/* ============ 侧栏 + 列表流 ============ */
.hub-layout{display:grid;grid-template-columns:1fr;gap:24px;align-items:start}
@media (min-width:1024px){
  .hub-layout{grid-template-columns:286px 1fr;gap:32px}
  .side-panel{position:sticky;top:90px}
}
.side-panel{display:flex;flex-direction:column;gap:16px}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-sm);
}
.side-title{
  position:relative;padding-left:11px;font-size:15px;font-weight:700;margin-bottom:12px;
}
.side-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:14px;border-radius:3px;background:var(--brand);
}
.side-links{display:flex;flex-direction:column}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;font-size:14px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.side-links a:last-child{border-bottom:0}
.side-links a::after{content:"›";color:var(--faint);font-size:16px;line-height:1}
.side-links a:hover{color:var(--brand)}
.side-links a:hover::after{color:var(--brand)}
.side-hint{margin-top:10px;font-size:12.8px;color:var(--muted);line-height:1.7}
.side-text{font-size:13.6px;color:var(--muted);line-height:1.75}
.side-back{display:inline-flex;margin-top:14px;font-size:13.5px;color:var(--muted)}
.side-back:hover{color:var(--brand)}

.list-col{display:flex;flex-direction:column;gap:16px;min-width:0}
.list-head .sec-h2{font-size:22px}
.list-head p{margin-top:10px;font-size:14px;color:var(--muted)}

.feature-card{
  border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;background:#fff;
  box-shadow:var(--sh-md);transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:var(--brand-soft)}
.feature-media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--placeholder)}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-overlay{
  position:absolute;left:0;right:0;bottom:0;padding:22px 24px;
  display:flex;flex-direction:column;gap:8px;
  background:linear-gradient(to top,rgba(11,21,38,.86),rgba(11,21,38,0));
  color:#fff;
}
.feature-title{font-size:clamp(17px,2.2vw,20px);font-weight:700;line-height:1.4;color:#fff}
.feature-meta{font-size:13px;color:rgba(255,255,255,.85);line-height:1.6}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:500;
  background:var(--brand-50);color:var(--brand);white-space:nowrap;
}
.badge-on-image{background:rgba(11,21,38,.62);color:#fff;align-self:flex-start}
.badge-accent{background:var(--accent-50);color:#027A61}

.flow-list{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;scroll-margin-top:90px;
}
.flow-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 20px;border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.flow-item:last-child{border-bottom:0}
.flow-item:hover{background:#FAFBFD}
.flow-thumb{
  flex:none;width:120px;height:80px;border-radius:12px;overflow:hidden;
  border:1px solid var(--border);background:var(--placeholder);
}
.flow-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.flow-item:hover .flow-thumb img{transform:scale(1.04)}
.flow-body{flex:1;min-width:0}
.flow-title{font-size:15.5px;font-weight:600;line-height:1.5}
.flow-title span{color:var(--ink)}
.flow-item:hover .flow-title span{color:var(--brand)}
.flow-body p{
  margin-top:6px;font-size:13.6px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.flow-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px}
.flow-meta time{font-size:12.5px;color:var(--faint)}
.flow-arrow{flex:none;color:var(--faint);transition:color var(--ease),transform var(--ease)}
.flow-item:hover .flow-arrow{color:var(--brand);transform:translateX(3px)}

/* ============ 关键动作卡 ============ */
.action-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.action-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1200px){.action-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.action-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.action-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:var(--brand-soft)}
.action-num{
  font-size:26px;font-weight:700;letter-spacing:-.02em;color:rgba(26,86,219,.22);line-height:1;
}
.action-card h3{font-size:17px;margin:12px 0 8px}
.action-card p{font-size:13.8px;color:var(--muted);line-height:1.75}
.action-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:12.5px;color:#027A61;
}
.action-tag .dot{background:var(--accent)}

/* ============ 时间轴 ============ */
.timeline-wrap{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:1024px){.timeline-wrap{grid-template-columns:340px 1fr;gap:56px;align-items:start}}
.timeline{position:relative;padding-left:34px;display:flex;flex-direction:column;gap:26px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;border-radius:2px;background:var(--line);
}
.tl-item{position:relative}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:4px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);box-shadow:0 0 0 4px rgba(26,86,219,.08);
}
.tl-item h3{font-size:17px;margin-bottom:8px}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.8;max-width:680px}

/* ============ 场景图文 ============ */
.scene-wrap{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media (min-width:1024px){.scene-wrap{grid-template-columns:1fr 1fr;gap:48px}}
.scene-media{
  border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  background:var(--placeholder);box-shadow:var(--sh-md);
}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-list{display:flex;flex-direction:column;gap:20px;margin-top:24px}
.scene-list li{display:flex;gap:14px}
.scene-list .dot{margin-top:10px}
.scene-list h3{font-size:16.5px;margin-bottom:6px}
.scene-list p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
@media (min-width:1024px){.faq-layout{grid-template-columns:1fr 2fr;gap:56px}}
.faq-intro p{margin-top:14px;font-size:14.5px;color:var(--muted);line-height:1.8}
.faq-intro .btn{margin-top:20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:var(--brand-soft)}
.faq-item[open]{box-shadow:var(--sh-md)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:15.5px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item[open] summary{color:var(--brand)}
.faq-icon{position:relative;flex:none;width:18px;height:18px;color:currentColor}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-answer{padding:0 20px 20px;font-size:14px;color:var(--muted);line-height:1.85}
.faq-answer p{max-width:760px}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(rgba(11,21,38,.84),rgba(11,21,38,.84)),
             url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  padding:56px 0;
}
@media (min-width:1024px){.cta-band{padding:72px 0}}
.cta-inner{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.4fr 1fr;gap:48px}}
.cta-inner h2{color:#fff;font-size:clamp(22px,3vw,30px)}
.cta-inner p{margin-top:12px;font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.8;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:639px){.cta-actions{flex-direction:column}.cta-actions .btn{width:100%}}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.62)}

/* ============ 页脚 ============ */
.site-footer{background:#0B1526;color:#94A3B8;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 40px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:14px;max-width:330px;font-size:13.5px;line-height:1.8;color:#94A3B8}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#94A3B8;font-size:13.5px}
.footer-col a:hover{color:#fff}
.footer-contact p{font-size:13.5px;line-height:1.8;margin-bottom:10px}
.footer-contact span{color:#E2E8F0}
.footer-contact strong{color:#E2E8F0;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.10);
  padding:18px 0;font-size:13px;color:#94A3B8;
}
.footer-bottom a{color:#94A3B8}
.footer-bottom a:hover{color:#fff}

/* ============ 移动端导航 ============ */
@media (max-width:1023px){
  .main-nav{display:none}
  .header-right{display:none}
  .nav-toggle{display:flex}
  body.nav-open{overflow:hidden}
  body.nav-open .site-header{box-shadow:var(--sh-md)}
  body.nav-open .header-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:16px;align-items:center}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  body.nav-open .main-nav{
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    order:3;flex-basis:100%;margin-top:10px;padding-top:10px;border-top:1px solid var(--line);
  }
  body.nav-open .nav-link{height:46px;padding:0 4px;font-size:15px}
  body.nav-open .nav-link::after{display:none}
  body.nav-open .header-right{
    display:flex;flex-direction:column;align-items:stretch;gap:10px;
    order:4;flex-basis:100%;margin-top:12px;
  }
  body.nav-open .search-box{width:100%}
  body.nav-open .header-right .btn{width:100%}
}
@media (max-width:639px){
  .hub-hero{padding:26px 0 34px}
  .flow-item{padding:14px}
  .flow-thumb{width:80px;height:56px}
  .flow-arrow{display:none}
  .feature-overlay{padding:16px}
  .side-card{padding:16px}
  .action-card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}