/* roulang page: index */
:root{
  --brand-700:#12448F;
  --brand-600:#1A5FC4;
  --brand-500:#2C7BE5;
  --brand-100:#E3EDFB;
  --brand-050:#F2F7FE;
  --accent-500:#FF6B35;
  --teal-500:#0FB5A6;
  --page-bg:#F4F7FC;
  --card-bg:#FFFFFF;
  --line:#E4EAF3;
  --ink-900:#16233A;
  --ink-700:#33415C;
  --ink-500:#6B7A90;
  --ink-300:#9AA8BC;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,35,58,.06);
  --shadow-md:0 4px 14px rgba(16,35,58,.07);
  --shadow-hover:0 12px 32px rgba(16,35,58,.12);
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"DIN Alternate","Roboto Mono","SFMono-Regular",Consolas,monospace;
  --sidebar-w:240px;
  --sidebar-w-sm:76px;
  --bs-primary:#1A5FC4;
  --bs-primary-rgb:26,95,196;
  --bs-body-bg:#F4F7FC;
  --bs-body-color:#33415C;
  --bs-border-color:#E4EAF3;
  --bs-link-color:#1A5FC4;
  --bs-link-hover-color:#12448F;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--page-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-700);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(26,95,196,.35);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-100);color:var(--brand-700);}

/* ============ 布局骨架 ============ */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:1040;
  transition:width .22s ease,transform .26s ease;
}
.sidebar-head{height:72px;display:flex;align-items:center;padding:0 18px;border-bottom:1px solid var(--line);flex:0 0 auto;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:0 6px 16px rgba(26,95,196,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;white-space:nowrap;}
.brand-text strong{font-size:18px;font-weight:800;color:var(--brand-700);letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--ink-500);letter-spacing:2px;}
.side-nav{padding:18px 12px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;flex:1 1 auto;}
.nav-title{font-size:12px;color:var(--ink-300);letter-spacing:1px;padding:8px 14px 6px;}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;
  padding:0 14px;border-radius:10px;color:var(--ink-700);font-size:15px;
  transition:background .18s ease,color .18s ease;
}
.side-link i{width:18px;font-size:16px;text-align:center;color:var(--ink-500);transition:color .18s ease;}
.side-link:hover{background:var(--brand-050);color:var(--brand-700);}
.side-link:hover i{color:var(--brand-600);}
.side-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:700;}
.side-link.active i{color:var(--brand-600);}
.side-link.active::before{
  content:"";position:absolute;left:-12px;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-600);
}
.sidebar-foot{padding:16px 12px 20px;border-top:1px solid var(--line);flex:0 0 auto;}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:42px;border-radius:var(--radius-btn);background:var(--brand-600);
  color:#fff;font-size:14px;font-weight:600;transition:.2s ease;
}
.side-cta:hover{background:#14509E;color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(26,95,196,.25);}
.sidebar-mask{
  position:fixed;inset:0;background:rgba(16,35,58,.45);
  opacity:0;visibility:hidden;transition:.22s ease;z-index:1035;
}
.sidebar-mask.show{opacity:1;visibility:visible;}
.app-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.mobile-topbar{display:none;}

/* ============ 工具条 ============ */
.toolbar{
  position:sticky;top:0;z-index:1030;height:48px;flex:0 0 auto;
  display:flex;align-items:center;gap:16px;padding:0 40px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);min-width:0;}
.crumbs a{color:var(--ink-500);}
.crumbs a:hover{color:var(--brand-600);}
.crumbs .sep{color:var(--ink-300);}
.crumbs .current{color:var(--ink-500);}
.toolbar-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;width:220px;}
.search-box i{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--ink-300);}
.search-box input{
  width:100%;height:38px;border-radius:999px;border:1px solid var(--line);
  background:#fff;padding:0 14px 0 34px;font-size:14px;color:var(--ink-900);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:var(--ink-300);}
.search-box input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(26,95,196,.18);}
.btn-ghost-sm{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 16px;
  border-radius:var(--radius-btn);border:1px solid rgba(26,95,196,.3);
  background:#fff;color:var(--brand-600);font-size:14px;font-weight:600;transition:.2s ease;
}
.btn-ghost-sm:hover{background:var(--brand-050);color:var(--brand-700);border-color:rgba(26,95,196,.45);}

/* ============ 容器 ============ */
.page-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;flex:1 1 auto;}
.section{padding:64px 0;}
.section-tight{padding:48px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:26px;letter-spacing:.2px;}
.section-head .sub{margin-top:6px;font-size:14px;color:var(--ink-500);}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);white-space:nowrap;}
.more-link:hover{gap:10px;}

/* ============ 按钮 / 徽章 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;transition:.2s ease;
}
.btn-brand:hover{background:#14509E;color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(26,95,196,.25);}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid rgba(26,95,196,.3);color:var(--brand-600);
  font-size:15px;font-weight:600;transition:.2s ease;
}
.btn-outline-brand:hover{background:var(--brand-050);color:var(--brand-700);border-color:rgba(26,95,196,.5);}
.btn-quiet{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--line);color:var(--ink-700);font-size:15px;font-weight:600;transition:.2s ease;
}
.btn-quiet:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-050);}
.badge-soft{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--brand-100);color:var(--brand-600);white-space:nowrap;
}
.badge-data{background:rgba(15,181,166,.12);color:#0a7d72;}
.badge-accent{background:rgba(255,107,53,.12);color:#d94f1c;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.mono{font-family:var(--mono);}

/* ============ Hero ============ */
.hero{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;padding:48px 0 24px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-050);border:1px solid var(--brand-100);color:var(--brand-600);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero h1{font-size:40px;line-height:1.28;font-weight:800;letter-spacing:.2px;}
.hero .lead{margin-top:16px;font-size:17px;line-height:1.85;color:var(--ink-700);max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:34px;padding-top:24px;border-top:1px dashed var(--line);}
.stat-num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--brand-700);line-height:1.2;}
.stat-label{font-size:13px;color:var(--ink-500);margin-top:2px;}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;aspect-ratio:16/9;box-shadow:var(--shadow-md);background:var(--brand-050);}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(255,255,255,.55),rgba(255,255,255,0) 48%);pointer-events:none;}

/* ============ 主题合集 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.topic-card{
  display:flex;gap:18px;align-items:flex-start;background:var(--card-bg);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#d5e2f7;}
.topic-index{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--brand-500);opacity:.9;line-height:1.4;}
.topic-body{flex:1 1 auto;min-width:0;}
.topic-body h3{font-size:20px;margin-bottom:6px;}
.topic-body p{font-size:14px;color:var(--ink-500);line-height:1.7;}
.topic-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;}
.topic-arrow{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--brand-050);color:var(--brand-600);font-size:12px;transition:.22s ease;}
.topic-card:hover .topic-arrow{background:var(--brand-600);color:#fff;transform:translateX(3px);}

/* ============ 精选条目 ============ */
.feature-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;}
.feature-main{
  display:flex;flex-direction:column;background:var(--card-bg);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.feature-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.thumb{overflow:hidden;background:var(--brand-050);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.feature-main .thumb{aspect-ratio:16/9;}
.feature-main:hover .thumb img{transform:scale(1.03);}
.feature-body{padding:24px;}
.feature-body h3{font-size:22px;line-height:1.4;margin:12px 0 10px;}
.feature-body p{font-size:15px;color:var(--ink-500);}
.feature-foot{display:flex;align-items:center;gap:14px;margin-top:16px;font-size:13px;color:var(--ink-500);}
.feature-side{display:flex;flex-direction:column;gap:24px;}
.mini-card{
  position:relative;flex:1 1 auto;display:flex;flex-direction:column;justify-content:center;
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 24px 24px 28px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.mini-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;background:var(--brand-600);}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.mini-card h3{font-size:18px;line-height:1.45;margin:10px 0 8px;}
.mini-card p{font-size:14px;color:var(--ink-500);}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{
  display:grid;grid-template-columns:190px 1fr;gap:20px;background:var(--card-bg);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;
  box-shadow:var(--shadow-sm);color:var(--ink-700);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#d5e2f7;color:var(--ink-700);}
.news-card .thumb{aspect-ratio:16/9;border-radius:var(--radius-img);}
.news-card:hover .thumb img{transform:scale(1.03);}
.news-body{display:flex;flex-direction:column;min-width:0;}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px;}
.news-time{font-size:13px;color:var(--ink-500);font-family:var(--mono);}
.news-card h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
.news-card .excerpt{font-size:14px;color:var(--ink-500);}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:var(--card-bg);border:1px dashed var(--line);border-radius:16px;
}
.empty-state i{font-size:30px;color:var(--brand-500);}
.empty-state p{margin:14px 0 20px;font-size:15px;color:var(--ink-500);}

/* ============ 相关推荐轨道 ============ */
.rail-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px;}
.rail-nav{display:flex;gap:10px;}
.rail-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--ink-700);display:grid;place-items:center;font-size:13px;transition:.2s ease;
}
.rail-btn:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:none;}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 260px;scroll-snap-align:start;background:var(--card-bg);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);color:var(--ink-700);
  transition:transform .22s ease,box-shadow .22s ease;
}
.rail-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:var(--ink-700);}
.rail-card .thumb{aspect-ratio:16/9;}
.rail-card:hover .thumb img{transform:scale(1.03);}
.rail-body{padding:16px 18px 18px;}
.rail-body h3{font-size:16px;line-height:1.45;margin:10px 0 6px;}
.rail-body p{font-size:13px;color:var(--ink-500);}

/* ============ CTA 通栏 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:linear-gradient(90deg,#EAF2FE,#F7FAFF);
  border:1px solid #dbe7fa;border-radius:16px;padding:32px;box-shadow:var(--shadow-sm);
}
.cta-band h2{font-size:22px;margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--ink-500);}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.icon-btn{
  width:46px;height:46px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:#fff;color:var(--ink-700);display:grid;place-items:center;font-size:15px;transition:.2s ease;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--brand-050);}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;}
.faq-item{
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-item .accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:#fff;border:0;font-size:18px;font-weight:700;
  color:var(--ink-900);text-align:left;box-shadow:none;transition:.2s ease;
}
.faq-item .accordion-button:hover{background:var(--brand-050);}
.faq-item .accordion-button:not(.collapsed){
  color:var(--brand-700);background:var(--brand-050);box-shadow:inset 3px 0 0 var(--brand-600);
}
.faq-item .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand-600);}
.faq-item .accordion-button .sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand-600);font-family:var(--mono);font-size:15px;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item .accordion-button:not(.collapsed) .sign{background:var(--brand-600);color:#fff;transform:rotate(180deg);}
.faq-item .accordion-body{padding:4px 22px 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ============ 页脚 ============ */
.site-footer{background:#0E1D33;color:#c8d3e4;margin-top:56px;flex:0 0 auto;}
.footer-inner{max-width:1280px;margin:0 auto;padding:56px 40px 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand-500),var(--brand-600));}
.footer-brand strong{color:#fff;font-size:17px;font-weight:800;letter-spacing:.4px;}
.footer-brand em{display:block;font-style:normal;font-size:12px;color:#8b9cb5;letter-spacing:2px;}
.footer-col p{font-size:14px;color:#a9b8cd;line-height:1.85;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col a{display:block;color:#a9b8cd;font-size:14px;padding:5px 0;}
.footer-col a:hover{color:#fff;}
.footer-contact{font-size:14px;color:#a9b8cd;line-height:2.1;font-family:var(--mono);}
.footer-social{display:flex;gap:10px;margin:14px 0 18px;}
.footer-social a{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;padding:0;
  background:rgba(255,255,255,.06);color:#c8d3e4;font-size:15px;transition:.2s ease;
}
.footer-social a:hover{background:var(--brand-600);color:#fff;}
.footer-btn{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);color:#fff;font-size:14px;font-weight:600;transition:.2s ease;
}
.footer-btn:hover{background:#fff;color:#0E1D33;border-color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8b9cb5;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .app-sidebar{width:var(--sidebar-w-sm);}
  .app-sidebar .brand-text,
  .app-sidebar .nav-title,
  .app-sidebar .nav-label{display:none;}
  .side-link{justify-content:center;padding:0;}
  .sidebar-head{justify-content:center;padding:0;}
  .sidebar-foot{padding:12px 10px 16px;}
  .side-cta{padding:0;font-size:13px;}
  .side-cta span{display:none;}
  .app-main{margin-left:var(--sidebar-w-sm);}
  .toolbar{padding:0 24px;}
  .page-wrap{padding:0 24px;}
  .footer-inner{padding:48px 24px 0;}
  .hero{gap:28px;}
  .hero h1{font-size:34px;}
  .hero-stats{gap:32px;}
}
@media (max-width:991px){
  .app-sidebar{
    width:280px;transform:translateX(-100%);
    box-shadow:0 0 40px rgba(16,35,58,.22);
  }
  .app-sidebar.open{transform:translateX(0);}
  .app-sidebar .brand-text,
  .app-sidebar .nav-title,
  .app-sidebar .nav-label{display:block;}
  .side-link{justify-content:flex-start;padding:0 14px;}
  .sidebar-head{justify-content:flex-start;padding:0 18px;}
  .sidebar-foot{padding:16px 12px 20px;}
  .side-cta span{display:inline;}
  .app-main{margin-left:0;}
  .mobile-topbar{
    display:flex;position:sticky;top:0;z-index:1036;height:64px;flex:0 0 auto;
    align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
    background:#fff;border-bottom:1px solid var(--line);
  }
  .mobile-topbar .brand-text strong{font-size:16px;}
  .topbar-actions{display:flex;align-items:center;gap:8px;}
  .topbar-icon{
    width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;
    color:var(--ink-700);display:grid;place-items:center;font-size:15px;transition:.2s ease;
  }
  .topbar-icon:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--brand-050);}
  .toolbar{top:64px;padding:0 16px;gap:10px;}
  .search-box{display:none;}
  .page-wrap{padding:0 16px;}
  .hero{grid-template-columns:1fr;padding:32px 0 16px;}
  .hero-visual{order:2;}
  .hero h1{font-size:30px;}
  .hero .lead{font-size:16px;}
  .section{padding:48px 0;}
  .feature-grid{grid-template-columns:1fr;}
  .topic-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px;}
}
@media (max-width:575px){
  body{font-size:15px;}
  .hero h1{font-size:28px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:22px;}
  .hero-stats{gap:24px;margin-top:26px;}
  .stat-num{font-size:22px;}
  .news-card{grid-template-columns:1fr;}
  .rail-card{flex:0 0 78%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-quiet{flex:1 1 auto;}
}

/* roulang page: article */
:root{
      --brand-700:#12448F;
      --brand-600:#1A5FC4;
      --brand-500:#2C7BE5;
      --brand-100:#E3EDFB;
      --brand-050:#F2F7FE;
      --accent-500:#FF6B35;
      --teal-500:#0FB5A6;
      --page-bg:#F4F7FC;
      --card-bg:#FFFFFF;
      --line:#E4EAF3;
      --ink-900:#16233A;
      --ink-700:#33415C;
      --ink-500:#6B7A90;
      --ink-300:#9AA8BC;
      --r-card:14px;
      --r-btn:10px;
      --r-img:12px;
      --r-pill:999px;
      --sh-sm:0 1px 2px rgba(16,35,58,.06);
      --sh-md:0 4px 14px rgba(16,35,58,.07);
      --sh-hover:0 12px 32px rgba(16,35,58,.12);
      --shell-w:240px;
      --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
      --font-mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
      --bs-primary:#1A5FC4;
      --bs-body-font-family:var(--font-sans);
      --bs-body-color:var(--ink-700);
      --bs-border-color:var(--line);
    }

    *,*::before,*::after{box-sizing:border-box;}
    html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
    body{
      margin:0;
      background:var(--page-bg);
      color:var(--ink-700);
      font-family:var(--font-sans);
      font-size:16px;
      line-height:1.8;
      -webkit-font-smoothing:antialiased;
    }
    h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;line-height:1.3;margin:0;}
    p{margin:0 0 16px;}
    a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
    a:hover{color:var(--brand-700);}
    img{max-width:100%;display:block;}
    ul,ol{margin:0 0 16px;padding-left:22px;}
    button{font-family:inherit;}
    :focus-visible{outline:none;box-shadow:0 0 0 3px rgba(26,95,196,.3);border-radius:8px;}

    /* ============ 左侧 App Shell ============ */
    .side-shell{
      position:fixed;left:0;top:0;bottom:0;width:var(--shell-w);
      background:#fff;border-right:1px solid var(--line);
      display:flex;flex-direction:column;z-index:1040;
    }
    .side-head{
      height:72px;display:flex;align-items:center;gap:10px;
      padding:0 18px;border-bottom:1px solid var(--line);flex:0 0 auto;
    }
    .side-logo{
      display:flex;align-items:center;gap:10px;color:var(--ink-900);
    }
    .side-logo .logo-mark{
      width:36px;height:36px;border-radius:10px;flex:0 0 auto;
      background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
      color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;
      box-shadow:0 4px 12px rgba(26,95,196,.28);
    }
    .side-logo .logo-text{display:flex;flex-direction:column;line-height:1.15;}
    .side-logo .logo-text strong{font-size:19px;font-weight:700;color:var(--brand-700);letter-spacing:.5px;}
    .side-logo .logo-text em{font-style:normal;font-size:12px;color:var(--ink-500);letter-spacing:2px;}

    .side-nav{padding:18px 12px;display:flex;flex-direction:column;gap:6px;flex:1 1 auto;overflow-y:auto;}
    .side-nav .nav-title{
      font-size:12px;color:var(--ink-300);letter-spacing:1px;
      padding:0 12px 8px;display:block;
    }
    .side-link{
      display:flex;align-items:center;gap:12px;
      height:44px;padding:0 14px;border-radius:10px;
      color:var(--ink-700);font-size:15px;position:relative;
      transition:background .22s ease,color .22s ease;
    }
    .side-link i{width:18px;font-size:16px;text-align:center;color:var(--ink-500);transition:color .22s ease;}
    .side-link:hover{background:var(--brand-050);color:var(--brand-700);}
    .side-link:hover i{color:var(--brand-600);}
    .side-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:700;}
    .side-link.active i{color:var(--brand-600);}
    .side-link.active::before{
      content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
      border-radius:0 3px 3px 0;background:var(--brand-600);
    }
    .side-foot{padding:16px;border-top:1px solid var(--line);flex:0 0 auto;}

    /* ============ 主内容区 ============ */
    .app-main{margin-left:var(--shell-w);min-height:100vh;display:flex;flex-direction:column;}
    .container-xl{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;}

    /* ============ 工具条 ============ */
    .topbar{
      position:sticky;top:0;z-index:1020;height:48px;
      background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
      border-bottom:1px solid var(--line);
    }
    .topbar-inner{display:flex;align-items:center;justify-content:space-between;height:48px;gap:16px;}
    .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);min-width:0;}
    .crumb a{color:var(--ink-500);}
    .crumb a:hover{color:var(--brand-600);}
    .crumb .sep{color:var(--ink-300);}
    .crumb .current{color:var(--ink-500);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:280px;}
    .topbar-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
    .search-box{position:relative;width:220px;}
    .search-box input{
      width:100%;height:38px;border-radius:var(--r-pill);
      border:1px solid var(--line);background:#fff;
      padding:0 38px 0 16px;font-size:14px;color:var(--ink-700);
      transition:border-color .2s ease,box-shadow .2s ease;
    }
    .search-box input::placeholder{color:var(--ink-300);}
    .search-box input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(26,95,196,.18);}
    .search-box button{
      position:absolute;right:4px;top:4px;width:30px;height:30px;border:0;
      background:transparent;color:var(--ink-500);border-radius:50%;cursor:pointer;
    }
    .search-box button:hover{color:var(--brand-600);background:var(--brand-050);}

    /* ============ 按钮 ============ */
    .btn{font-size:15px;border-radius:var(--r-btn);transition:all .22s ease;border-width:1px;font-weight:500;}
    .btn-brand{
      background:var(--brand-600);color:#fff;border:1px solid var(--brand-600);
      height:46px;padding:0 22px;display:inline-flex;align-items:center;gap:8px;justify-content:center;
    }
    .btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(18,68,143,.24);}
    .btn-outline-brand{
      background:#fff;color:var(--brand-600);border:1px solid rgba(26,95,196,.3);
      height:46px;padding:0 22px;display:inline-flex;align-items:center;gap:8px;justify-content:center;
    }
    .btn-outline-brand:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-500);}
    .btn-sm-brand{
      height:34px;padding:0 14px;font-size:13px;border-radius:var(--r-btn);
      background:var(--brand-050);color:var(--brand-700);border:1px solid var(--line);
      display:inline-flex;align-items:center;gap:6px;
    }
    .btn-sm-brand:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100);}
    .btn-sm-brand.is-on{background:var(--brand-600);color:#fff;border-color:var(--brand-600);}
    .btn-block{width:100%;}

    /* ============ 文章头部 ============ */
    .article-hero{
      background-image:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.82) 52%,rgba(255,255,255,.42) 100%),url("/assets/images/backpic/back-2.webp");
      background-size:cover;background-position:center right;
      border-bottom:1px solid var(--line);
    }
    .article-hero-inner{padding:40px 0 34px;}
    .hero-tagline{
      display:inline-flex;align-items:center;gap:8px;
      font-size:13px;color:var(--brand-700);background:#fff;
      border:1px solid var(--brand-100);border-radius:var(--r-pill);
      padding:5px 14px;box-shadow:var(--sh-sm);margin-bottom:16px;
    }
    .article-title{
      font-size:34px;line-height:1.35;max-width:900px;
      margin-bottom:18px;letter-spacing:.2px;
    }
    .article-meta{
      display:flex;flex-wrap:wrap;align-items:center;gap:14px;
      font-size:13px;color:var(--ink-500);
    }
    .article-meta .dot{width:1px;height:12px;background:var(--line);}
    .meta-actions{display:flex;align-items:center;gap:8px;margin-left:2px;}

    .badge-soft{
      display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
      background:var(--brand-100);color:var(--brand-600);font-size:12px;font-weight:500;line-height:1;
    }
    .badge-teal{
      display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
      background:rgba(15,181,166,.12);color:#0A8478;font-size:12px;font-weight:500;line-height:1;
    }
    .badge-accent{
      display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
      background:rgba(255,107,53,.12);color:#D9501F;font-size:12px;font-weight:500;line-height:1;
    }

    /* ============ 文章布局 ============ */
    .article-wrap{padding:40px 0 64px;}
    .article-layout{
      display:grid;grid-template-columns:minmax(0,760px) 300px;
      gap:40px;justify-content:space-between;align-items:start;
    }
    .panel{
      background:var(--card-bg);border:1px solid var(--line);
      border-radius:var(--r-card);box-shadow:var(--sh-sm);
    }
    .article-panel{padding:36px 40px 32px;}

    /* ============ 正文排版 ============ */
    .article-body{font-size:17px;line-height:1.85;color:var(--ink-700);}
    .article-body > *:first-child{margin-top:0;}
    .article-body p{margin:0 0 18px;}
    .article-body h2{
      font-size:22px;margin:36px 0 16px;padding-left:14px;position:relative;scroll-margin-top:80px;
    }
    .article-body h2::before{
      content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;
      border-radius:3px;background:var(--brand-600);
    }
    .article-body h3{font-size:19px;margin:28px 0 12px;scroll-margin-top:80px;}
    .article-body ul,.article-body ol{padding-left:24px;margin:0 0 18px;}
    .article-body li{line-height:1.9;margin-bottom:6px;}
    .article-body blockquote{
      margin:24px 0;padding:16px 20px;background:var(--brand-050);
      border-left:4px solid var(--brand-600);border-radius:0 var(--r-img) var(--r-img) 0;
      color:var(--ink-700);font-size:16px;
    }
    .article-body img{border-radius:var(--r-img);margin:22px 0;width:100%;height:auto;box-shadow:var(--sh-sm);}
    .article-body figure{margin:22px 0;}
    .article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:8px;}
    .article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
    .article-body a:hover{color:var(--brand-700);}
    .article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
    .article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
    .article-body th{background:var(--brand-050);color:var(--ink-900);font-weight:600;}
    .article-body code{
      background:var(--brand-050);color:var(--brand-700);
      padding:2px 6px;border-radius:6px;font-family:var(--font-mono);font-size:14px;
    }
    .article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

    .empty-state{
      text-align:center;padding:56px 20px;color:var(--ink-500);
    }
    .empty-state .empty-icon{
      width:64px;height:64px;border-radius:50%;background:var(--brand-050);
      color:var(--brand-600);display:flex;align-items:center;justify-content:center;
      font-size:24px;margin:0 auto 16px;
    }
    .empty-state h3{font-size:19px;margin-bottom:8px;}
    .empty-state p{margin-bottom:20px;font-size:15px;}

    /* ============ 右列 ============ */
    .side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:72px;}
    .widget{padding:20px;background:var(--card-bg);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);}
    .widget-title{
      font-size:15px;font-weight:700;color:var(--ink-900);
      display:flex;align-items:center;gap:8px;margin-bottom:14px;
    }
    .widget-title i{color:var(--brand-600);font-size:14px;}
    .toc-list{display:flex;flex-direction:column;gap:2px;}
    .toc-list a{
      display:block;font-size:14px;color:var(--ink-700);
      padding:7px 10px;border-radius:8px;line-height:1.5;
      border-left:2px solid transparent;
    }
    .toc-list a:hover{background:var(--brand-050);color:var(--brand-700);border-left-color:var(--brand-500);}
    .toc-empty{font-size:13px;color:var(--ink-300);}
    .mini-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);}
    .mini-item:last-child{border-bottom:0;padding-bottom:0;}
    .mini-item .mini-thumb{
      width:72px;height:54px;flex:0 0 auto;border-radius:10px;overflow:hidden;background:var(--brand-050);
    }
    .mini-item .mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
    .mini-item:hover .mini-thumb img{transform:scale(1.05);}
    .mini-item h4{
      font-size:14px;font-weight:600;line-height:1.5;margin-bottom:4px;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .mini-item a{color:var(--ink-900);}
    .mini-item a:hover{color:var(--brand-600);}
    .mini-item span{font-size:12px;color:var(--ink-300);}
    .consult-card{
      padding:22px;border-radius:var(--r-card);color:#fff;
      background:linear-gradient(150deg,var(--brand-700),var(--brand-600) 60%,var(--brand-500));
      box-shadow:0 12px 28px rgba(18,68,143,.22);
    }
    .consult-card h3{color:#fff;font-size:17px;margin-bottom:8px;}
    .consult-card p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.86);margin-bottom:16px;}
    .consult-card .btn-white{
      display:inline-flex;align-items:center;gap:8px;justify-content:center;
      width:100%;height:42px;border-radius:var(--r-btn);
      background:#fff;color:var(--brand-700);font-size:14px;font-weight:600;
    }
    .consult-card .btn-white:hover{background:var(--brand-050);color:var(--brand-700);}

    /* ============ 文末 ============ */
    .after-article{margin-top:28px;display:flex;flex-direction:column;gap:20px;}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
    .tag-row .label{font-size:13px;color:var(--ink-500);margin-right:4px;}
    .tag{
      display:inline-flex;align-items:center;height:30px;padding:0 14px;
      border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
      font-size:13px;color:var(--ink-700);
    }
    .tag:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--brand-050);}

    .continue-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
    .continue-card{
      padding:18px 20px;background:#fff;border:1px solid var(--line);
      border-radius:var(--r-card);display:flex;gap:14px;align-items:flex-start;
      transition:transform .22s ease,box-shadow .22s ease;
    }
    .continue-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
    .continue-card .cc-icon{
      width:40px;height:40px;flex:0 0 auto;border-radius:10px;
      background:var(--brand-050);color:var(--brand-600);
      display:flex;align-items:center;justify-content:center;font-size:16px;
    }
    .continue-card h4{font-size:15px;margin-bottom:4px;}
    .continue-card h4 a{color:var(--ink-900);}
    .continue-card p{font-size:13px;color:var(--ink-500);margin:0;line-height:1.6;}

    .section-head{
      display:flex;align-items:flex-end;justify-content:space-between;
      gap:16px;margin-bottom:20px;
    }
    .section-head h2{font-size:22px;}
    .section-head .head-link{font-size:14px;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px;}
    .section-head .head-link:hover{gap:9px;color:var(--brand-700);}

    .related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
    .rel-card{
      background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
      overflow:hidden;box-shadow:var(--sh-sm);display:flex;flex-direction:column;
      transition:transform .22s ease,box-shadow .22s ease;
    }
    .rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
    .rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-050);}
    .rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
    .rel-card:hover .rel-thumb img{transform:scale(1.03);}
    .rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
    .rel-body h3{
      font-size:16px;line-height:1.5;display:-webkit-box;
      -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .rel-body h3 a{color:var(--ink-900);}
    .rel-body h3 a:hover{color:var(--brand-600);}
    .rel-body p{
      font-size:13.5px;color:var(--ink-500);line-height:1.65;margin:0;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    }
    .rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-300);}

    /* ============ FAQ ============ */
    .faq-block{padding:48px 0 8px;}
    .accordion-item{
      border:1px solid var(--line);border-radius:var(--r-card) !important;
      margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--sh-sm);
    }
    .accordion-button{
      font-size:18px;font-weight:700;color:var(--ink-900);
      padding:20px 22px;background:#fff;box-shadow:none !important;
      gap:14px;position:relative;
    }
    .accordion-button::after{
      margin-left:auto;background:none;content:"\f067";
      font-family:"Font Awesome 6 Free";font-weight:900;
      width:auto;height:auto;font-size:13px;color:var(--brand-600);
      transition:transform .22s ease;
    }
    .accordion-button:not(.collapsed){color:var(--brand-700);background:var(--brand-050);}
    .accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg);}
    .accordion-button:not(.collapsed)::before{
      content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
      background:var(--brand-600);border-radius:0 3px 3px 0;
    }
    .accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-700);}

    /* ============ CTA 通栏 ============ */
    .cta-band{
      margin:40px 0 0;border-radius:var(--r-card);
      background:linear-gradient(90deg,#EAF2FE 0%,#F7FAFF 100%);
      border:1px solid var(--brand-100);
      padding:28px 32px;display:flex;flex-wrap:wrap;align-items:center;
      justify-content:space-between;gap:20px;
    }
    .cta-band h3{font-size:20px;margin-bottom:6px;}
    .cta-band p{font-size:14px;color:var(--ink-500);margin:0;}
    .cta-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
    .icon-btn{
      width:42px;height:42px;border-radius:var(--r-btn);
      background:#fff;border:1px solid var(--line);color:var(--ink-700);
      display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
      transition:all .22s ease;
    }
    .icon-btn:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--brand-050);}

    /* ============ 页脚 ============ */
    .site-footer{background:#0E1D33;color:rgba(255,255,255,.72);margin-top:64px;}
    .footer-inner{max-width:1280px;margin:0 auto;padding:56px 40px 24px;}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
    .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
    .footer-brand .brand-mark{
      width:38px;height:38px;border-radius:10px;flex:0 0 auto;
      background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
      color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;
    }
    .footer-brand strong{display:block;color:#fff;font-size:18px;letter-spacing:.5px;}
    .footer-brand em{display:block;font-style:normal;font-size:12px;color:rgba(255,255,255,.55);letter-spacing:2px;}
    .footer-col p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin:0 0 8px;}
    .footer-contact{font-size:13px;color:rgba(255,255,255,.55);}
    .footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
    .footer-col a{
      display:block;font-size:13.5px;color:rgba(255,255,255,.68);
      padding:5px 0;transition:color .2s ease,transform .2s ease;
    }
    .footer-col a:hover{color:#fff;transform:translateX(2px);}
    .footer-social{display:flex;gap:10px;margin-bottom:16px;}
    .footer-social a{
      width:36px;height:36px;border-radius:10px;padding:0;
      background:rgba(255,255,255,.08);color:rgba(255,255,255,.8);
      display:inline-flex;align-items:center;justify-content:center;
    }
    .footer-social a:hover{background:var(--brand-600);color:#fff;transform:none;}
    .footer-btn{
      display:inline-flex;align-items:center;gap:8px;
      height:40px;padding:0 18px;border-radius:var(--r-btn);
      background:var(--brand-600);color:#fff;font-size:14px;font-weight:500;
    }
    .footer-btn:hover{background:var(--brand-500);color:#fff;transform:none;}
    .footer-bottom{
      margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
      display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
      font-size:13px;color:rgba(255,255,255,.5);
    }

    /* ============ 移动端顶栏与抽屉 ============ */
    .mobile-topbar{
      display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:1050;
      background:#fff;border-bottom:1px solid var(--line);
      align-items:center;justify-content:space-between;padding:0 16px;
    }
    .mobile-topbar .logo-inline{display:flex;align-items:center;gap:9px;}
    .mobile-topbar .logo-inline .logo-mark{
      width:32px;height:32px;border-radius:9px;
      background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
      color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;
    }
    .mobile-topbar .logo-inline strong{font-size:16px;color:var(--brand-700);}
    .mobile-topbar .mobile-tools{display:flex;align-items:center;gap:8px;}
    .mobile-topbar button{
      width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
      background:#fff;color:var(--ink-700);font-size:16px;cursor:pointer;
    }
    .drawer-mask{
      display:none;position:fixed;inset:0;background:rgba(16,35,58,.45);z-index:1055;
    }
    .drawer-mask.show{display:block;}
    .drawer{
      position:fixed;top:0;bottom:0;left:0;width:280px;background:#fff;z-index:1060;
      transform:translateX(-100%);transition:transform .26s ease;display:flex;flex-direction:column;
      box-shadow:0 0 40px rgba(16,35,58,.2);
    }
    .drawer.show{transform:translateX(0);}

    /* ============ 响应式 ============ */
    @media (max-width:1199.98px){
      :root{--shell-w:76px;}
      .side-logo .logo-text,.side-nav .nav-title,.side-link .nav-label{display:none;}
      .side-head{justify-content:center;padding:0;}
      .side-link{justify-content:center;padding:0;position:relative;}
      .side-link:hover::after{
        content:attr(data-tip);position:absolute;left:64px;top:50%;transform:translateY(-50%);
        background:var(--ink-900);color:#fff;font-size:13px;padding:6px 12px;border-radius:8px;
        white-space:nowrap;z-index:20;
      }
      .side-foot .btn-label{display:none;}
      .side-foot .btn-brand{padding:0;width:44px;}
      .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
      .side-col{position:static;}
    }
    @media (max-width:991.98px){
      .side-shell{display:none;}
      .mobile-topbar{display:flex;}
      .app-main{margin-left:0;padding-top:64px;}
      .topbar{top:64px;}
      .container-xl{padding:0 20px;}
      .article-title{font-size:28px;}
      .article-panel{padding:26px 22px 24px;}
      .article-body{font-size:16.5px;}
      .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
      .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
      .footer-inner{padding:40px 20px 20px;}
      .search-box{width:170px;}
      .crumb .current{max-width:150px;}
    }
    @media (max-width:767.98px){
      .topbar-tools .search-box{display:none;}
      .topbar-tools .btn-outline-brand span{display:none;}
      .topbar-tools .btn-outline-brand{width:42px;padding:0;}
      .article-hero-inner{padding:28px 0 24px;}
      .article-title{font-size:25px;}
      .article-wrap{padding:28px 0 48px;}
      .article-panel{padding:22px 18px 20px;}
      .article-body{font-size:16px;}
      .article-body h2{font-size:20px;}
      .continue-grid{grid-template-columns:1fr;}
      .related-grid{grid-template-columns:1fr;}
      .cta-band{padding:22px 20px;}
      .accordion-button{font-size:16px;padding:18px 18px;}
      .accordion-body{padding:0 18px 18px;}
      .footer-grid{grid-template-columns:1fr;gap:28px;}
      .footer-bottom{flex-direction:column;}
      .faq-block{padding:36px 0 0;}
    }
    @media (max-width:575.98px){
      .container-xl{padding:0 16px;}
      .article-title{font-size:23px;}
      .article-meta{gap:10px;font-size:12.5px;}
      .cta-actions{width:100%;}
      .cta-actions .btn-brand,.cta-actions .btn-outline-brand{flex:1;}
    }

/* roulang page: category1 */
:root{
  --brand-700:#12448F;
  --brand-600:#1A5FC4;
  --brand-500:#2C7BE5;
  --brand-100:#E3EDFB;
  --brand-050:#F2F7FE;
  --accent-500:#FF6B35;
  --teal-500:#0FB5A6;
  --page-bg:#F4F7FC;
  --card-bg:#FFFFFF;
  --line:#E4EAF3;
  --ink-900:#16233A;
  --ink-700:#33415C;
  --ink-500:#6B7A90;
  --ink-300:#9AA8BC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,35,58,.06);
  --shadow-md:0 4px 14px rgba(16,35,58,.07);
  --shadow-lg:0 12px 32px rgba(16,35,58,.12);
  --sidebar-w:240px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono","SFMono-Regular",Menlo,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--page-bg);
  color:var(--ink-700);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(26,95,196,.35);outline-offset:2px;border-radius:6px;}
.num{font-family:var(--font-num);font-weight:700;letter-spacing:.5px;}

/* ============ 布局骨架 ============ */
.app-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:1045;
  transition:width .24s ease,transform .28s ease;
}
.sidebar-head{
  height:72px;
  display:flex;
  align-items:center;
  padding:0 18px;
  border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
}
.brand-mark{
  width:38px;height:38px;
  flex:0 0 38px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  box-shadow:var(--shadow-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.brand-text strong{font-size:18px;color:var(--brand-700);letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:2px;}
.side-nav{
  padding:16px 12px;
  display:flex;
  flex-direction:column;
  gap:6px;
  flex:1 1 auto;
  overflow-y:auto;
}
.nav-title{
  font-size:12px;
  color:var(--ink-300);
  letter-spacing:1px;
  padding:0 14px 8px;
}
.side-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 14px;
  border-radius:10px;
  color:var(--ink-700);
  font-size:15px;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.side-link i{width:18px;text-align:center;font-size:16px;color:var(--ink-500);transition:color .2s ease;}
.side-link:hover{background:var(--brand-050);color:var(--brand-700);}
.side-link:hover i{color:var(--brand-600);}
.side-link.active{
  background:var(--brand-100);
  color:var(--brand-700);
  font-weight:700;
}
.side-link.active i{color:var(--brand-600);}
.side-link.active::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand-600);
}
.sidebar-foot{
  padding:16px 12px 20px;
  border-top:1px solid var(--line);
  flex:0 0 auto;
}
.main-area{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  transition:margin-left .24s ease;
}
.container-xl{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 40px;
}

/* ============ 工具条 ============ */
.topbar{
  position:sticky;
  top:0;
  z-index:1030;
  height:48px;
  background:rgba(244,247,252,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  height:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-500);
  min-width:0;
}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--ink-300);}
.crumb .current{color:var(--ink-500);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.search-box{
  position:relative;
  width:220px;
}
.search-box i{
  position:absolute;
  left:14px;top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--ink-300);
}
.search-box input{
  width:100%;
  height:38px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  padding:0 16px 0 34px;
  font-size:14px;
  color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--ink-300);}
.search-box input:focus{
  outline:none;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(26,95,196,.18);
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 16px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(26,95,196,.3);
  background:#fff;
  color:var(--brand-600);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-050);border-color:var(--brand-600);color:var(--brand-700);}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid var(--brand-600);
  background:var(--brand-600);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:#14509E;color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(26,95,196,.28);}
.btn-brand.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(26,95,196,.3);
  background:#fff;
  color:var(--brand-600);
  font-size:15px;
  font-weight:600;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-outline:hover{background:var(--brand-050);border-color:var(--brand-600);color:var(--brand-700);transform:translateY(-1px);}
.btn-block{width:100%;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  background:#fff;
  border-bottom:1px solid var(--line);
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  z-index:1050;
}
.mobile-actions{display:flex;align-items:center;gap:8px;}
.icon-btn{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-700);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-050);color:var(--brand-600);border-color:var(--brand-100);}
.drawer-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(16,35,58,.45);
  z-index:1044;
}
.drawer-mask.show{display:block;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(244,247,252,.97) 0%,rgba(244,247,252,.9) 48%,rgba(244,247,252,.55) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  padding:56px 0 48px;
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:40px;
  line-height:1.25;
  letter-spacing:.5px;
  margin-bottom:16px;
}
.page-hero h1 .thin{color:var(--brand-600);font-weight:700;}
.hero-lead{
  font-size:16px;
  color:var(--ink-700);
  max-width:560px;
  margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-notes{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  font-size:13px;
  color:var(--ink-500);
}
.hero-notes span{display:inline-flex;align-items:center;gap:7px;}
.hero-notes i{color:var(--brand-500);}
.hero-figure{
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.6);
  background:#fff;
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
.section.tight{padding:48px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:26px;}
.section-head .sub{
  font-size:14px;
  color:var(--ink-500);
  margin-top:8px;
}
.section-link{
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}

/* ============ 数据速览 ============ */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.stat-card{
  background:var(--card-bg);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease;
}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.stat-card .stat-num{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:var(--brand-700);
  line-height:1.1;
}
.stat-card .stat-num small{font-size:14px;color:var(--ink-500);font-weight:600;margin-left:4px;}
.stat-card .stat-label{
  font-size:13px;
  color:var(--ink-500);
  margin-top:10px;
  display:flex;
  align-items:center;
  gap:7px;
}
.stat-card .stat-label i{color:var(--teal-500);}

/* ============ 筛选 ============ */
.filter-row{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:26px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-700);
  font-size:14px;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-600);}
.chip.active{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
  box-shadow:0 6px 16px rgba(26,95,196,.24);
}
.chip i{font-size:12px;}

/* ============ 时间轴 ============ */
.timeline{
  position:relative;
  padding-left:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:31px;
  top:12px;
  bottom:12px;
  width:1px;
  background:var(--line);
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:22px;
  padding-bottom:18px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-date{
  position:relative;
  z-index:1;
  width:64px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:8px 0 7px;
  text-align:center;
  box-shadow:var(--shadow-sm);
}
.tl-date .day{
  display:block;
  font-family:var(--font-num);
  font-size:20px;
  font-weight:700;
  color:var(--brand-700);
  line-height:1.1;
}
.tl-date .mon{
  display:block;
  font-size:12px;
  color:var(--ink-500);
  margin-top:2px;
}
.tl-body{
  background:var(--card-bg);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 22px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.tl-body:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-2px);
  border-color:var(--brand-100);
}
.tl-body h3{
  font-size:20px;
  line-height:1.45;
  margin-bottom:8px;
}
.tl-body h3 a{color:var(--ink-900);}
.tl-body h3 a:hover{color:var(--brand-600);}
.tl-body p{
  font-size:15px;
  color:var(--ink-700);
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.tl-meta{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ink-500);
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-600);
  font-size:12px;
  font-weight:600;
}
.badge-teal{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(15,181,166,.12);
  color:#0A8578;
  font-size:12px;
  font-weight:600;
}
.badge-accent{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(255,107,53,.12);
  color:#D9531F;
  font-size:12px;
  font-weight:600;
}
.tl-meta .time{display:inline-flex;align-items:center;gap:6px;}
.tl-meta .time i{color:var(--ink-300);}

/* ============ 分页 ============ */
.pager{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:8px;
  margin-top:36px;
  flex-wrap:wrap;
}
.pager a,.pager span{
  min-width:40px;
  height:40px;
  padding:0 14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-700);
  font-size:14px;
  transition:all .2s ease;
}
.pager a:hover{border-color:var(--brand-500);color:var(--brand-600);}
.pager .current{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
  font-weight:600;
}
.pager .disabled{opacity:.4;cursor:not-allowed;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:var(--card-bg);
  border:1px solid var(--line) !important;
  border-radius:14px !important;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.accordion-button{
  background:#fff;
  color:var(--ink-900);
  font-size:18px;
  font-weight:700;
  padding:20px 22px;
  border:0;
  box-shadow:none !important;
  display:flex;
  align-items:center;
  gap:14px;
  transition:background .2s ease,color .2s ease;
}
.accordion-button:hover{background:var(--brand-050);}
.accordion-button::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  color:var(--brand-600);
  background-image:none;
  width:auto;height:auto;
  margin-left:auto;
  transform:none;
  transition:transform .24s ease;
}
.accordion-button:not(.collapsed){
  background:var(--brand-050);
  color:var(--brand-700);
  box-shadow:inset 3px 0 0 var(--brand-600) !important;
}
.accordion-button:not(.collapsed)::after{
  content:"\f068";
  transform:rotate(180deg);
}
.accordion-body{
  padding:4px 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-700);
  border-left:3px solid transparent;
}
.accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body{
  border-left:3px solid var(--brand-600);
  margin-left:0;
}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(100deg,#EAF2FE 0%,#F7FAFF 100%);
  border:1px solid var(--brand-100);
  border-radius:20px;
  padding:38px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:24px;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--ink-700);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:auto;
  background:#0E1D33;
  color:rgba(255,255,255,.72);
  padding:56px 0 0;
}
.footer-inner{
  max-width:1280px;
  margin:0 auto;
  padding:0 40px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-col h4{
  color:#fff;
  font-size:16px;
  margin-bottom:18px;
}
.footer-col a{
  display:block;
  color:rgba(255,255,255,.72);
  font-size:14px;
  padding:5px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2C7BE5,#1A5FC4);}
.footer-brand strong{display:block;color:#fff;font-size:18px;line-height:1.2;}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.55);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-contact{font-size:13px;color:rgba(255,255,255,.6);}
.footer-social{display:flex;gap:10px;margin-bottom:16px;}
.footer-social a{
  width:38px;height:38px;
  border-radius:10px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:rgba(255,255,255,.8);
  padding:0;
}
.footer-social a:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px);}
.footer-btn{
  display:inline-flex !important;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px !important;
  border-radius:var(--radius-btn);
  background:var(--brand-600);
  color:#fff !important;
  font-size:14px;
  font-weight:600;
}
.footer-btn:hover{background:#14509E;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sidebar-w:76px;}
  .sidebar-head{padding:0;justify-content:center;}
  .brand-text{display:none;}
  .side-nav{padding:16px 10px;align-items:center;}
  .nav-title{display:none;}
  .side-link{
    justify-content:center;
    padding:0;
    width:48px;
    height:48px;
  }
  .side-link .nav-label{
    position:absolute;
    left:60px;
    top:50%;
    transform:translateY(-50%) translateX(-6px);
    background:var(--ink-900);
    color:#fff;
    font-size:13px;
    padding:6px 12px;
    border-radius:8px;
    white-space:nowrap;
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease,transform .18s ease;
    z-index:20;
  }
  .side-link:hover .nav-label{opacity:1;transform:translateY(-50%) translateX(0);}
  .side-link.active::before{left:-10px;}
  .sidebar-foot{padding:14px 10px 18px;text-align:center;}
  .sidebar-foot .btn-brand span{display:none;}
  .sidebar-foot .btn-brand{width:48px;padding:0;height:48px;}
  .container-xl{padding:0 28px;}
  .footer-inner{padding:0 28px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-figure{max-width:640px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  .app-sidebar{
    width:280px;
    transform:translateX(-100%);
    box-shadow:var(--shadow-lg);
  }
  .app-sidebar.open{transform:translateX(0);}
  .app-sidebar .brand-text{display:flex;}
  .app-sidebar .sidebar-head{padding:0 18px;justify-content:flex-start;}
  .app-sidebar .side-nav{padding:16px 12px;align-items:stretch;}
  .app-sidebar .side-link{width:100%;height:44px;justify-content:flex-start;padding:0 14px;}
  .app-sidebar .side-link .nav-label{
    position:static;
    transform:none;
    opacity:1;
    background:transparent;
    color:inherit;
    padding:0;
    font-size:15px;
    pointer-events:auto;
    display:inline;
  }
  .app-sidebar .side-link.active::before{left:0;}
  .app-sidebar .sidebar-foot{padding:16px 12px 20px;text-align:left;}
  .app-sidebar .sidebar-foot .btn-brand{width:100%;height:46px;}
  .app-sidebar .sidebar-foot .btn-brand span{display:inline;}
  .mobile-bar{display:flex;}
  .main-area{margin-left:0;padding-top:64px;}
  .topbar{top:64px;}
  .container-xl{padding:0 22px;}
  .footer-inner{padding:0 22px;}
  .search-box{width:180px;}
  .page-hero{padding:40px 0 36px;}
  .page-hero h1{font-size:32px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:30px 28px;}
}
@media (max-width:767.98px){
  .topbar-tools .search-box{display:none;}
  .topbar-tools .btn-ghost span{display:none;}
  .topbar-tools .btn-ghost{padding:0 12px;}
  .container-xl{padding:0 16px;}
  .footer-inner{padding:0 16px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-card{padding:18px;}
  .stat-card .stat-num{font-size:24px;}
  .tl-item{grid-template-columns:1fr;gap:12px;padding-bottom:16px;}
  .timeline::before{display:none;}
  .tl-date{
    width:auto;
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
  }
  .tl-date .day,.tl-date .mon{display:inline;font-size:13px;margin:0;}
  .tl-date .day{font-size:14px;}
  .tl-body{padding:18px;}
  .tl-body h3{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-col p{max-width:none;}
  .cta-band{padding:26px 20px;border-radius:16px;}
  .cta-band h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-outline{flex:1 1 100%;}
  .accordion-button{font-size:16px;padding:16px 18px;}
  .accordion-body{padding:2px 18px 18px;}
  .footer-bottom{font-size:12px;}
}
@media (max-width:575.98px){
  .stat-grid{grid-template-columns:1fr;}
  .pager a,.pager span{min-width:36px;height:36px;padding:0 10px;font-size:13px;}
  .hero-actions .btn-brand,.hero-actions .btn-outline{flex:1 1 100%;}
}

/* roulang page: category3 */
:root{
  --brand-700:#12448F;
  --brand-600:#1A5FC4;
  --brand-500:#2C7BE5;
  --brand-100:#E3EDFB;
  --brand-050:#F2F7FE;
  --accent-500:#FF6B35;
  --teal-500:#0FB5A6;
  --page-bg:#F4F7FC;
  --card-bg:#FFFFFF;
  --line:#E4EAF3;
  --ink-900:#16233A;
  --ink-700:#33415C;
  --ink-500:#6B7A90;
  --ink-300:#9AA8BC;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-sm:0 1px 2px rgba(16,35,58,.06);
  --sh-md:0 4px 14px rgba(16,35,58,.07);
  --sh-lg:0 12px 32px rgba(16,35,58,.12);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate","Roboto Mono","SFMono-Regular",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--page-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(26,95,196,.28);border-radius:8px;}

/* ---------- 侧边 App Shell ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:240px;
  background:#fff;border-right:1px solid var(--line);
  padding:24px 16px;display:flex;flex-direction:column;gap:6px;
  z-index:1050;
}
.nav-title{
  font-size:12px;letter-spacing:.1em;color:var(--ink-300);
  padding:0 14px 10px;font-weight:600;
}
.side-link{
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:10px;
  color:var(--ink-700);font-size:15px;font-weight:500;
  border-left:3px solid transparent;
  position:relative;transition:background .2s ease,color .2s ease;
}
.side-link i{width:18px;font-size:16px;color:var(--ink-500);text-align:center;transition:color .2s ease;}
.side-link:hover{background:var(--brand-050);color:var(--brand-700);}
.side-link:hover i{color:var(--brand-600);}
.side-link.active{
  background:var(--brand-100);color:var(--brand-700);font-weight:700;
  border-left-color:var(--brand-600);
}
.side-link.active i{color:var(--brand-600);}
.side-cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;gap:8px;
  height:44px;border-radius:10px;background:var(--brand-600);color:#fff;
  font-size:15px;font-weight:600;box-shadow:0 6px 16px rgba(26,95,196,.24);
}
.side-cta:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);}
.side-cta i{font-size:14px;}
.side-overlay{
  position:fixed;inset:0;background:rgba(16,35,58,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:1040;
}
.side-overlay.show{opacity:1;visibility:visible;}

/* ---------- 主体骨架 ---------- */
.main-wrap{
  margin-left:240px;min-height:100vh;
  display:flex;flex-direction:column;
}
.wrap{
  width:100%;max-width:1280px;margin:0 auto;padding:0 40px;
}
.mobile-bar{display:none;}

/* ---------- 顶部工具条 ---------- */
.topbar{
  position:sticky;top:0;z-index:1030;
  height:48px;background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 40px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--ink-300);}
.crumb .current{color:var(--ink-500);}
.topbar-right{display:flex;align-items:center;gap:12px;}
.top-search{
  position:relative;display:flex;align-items:center;
  width:220px;height:38px;border:1px solid var(--line);border-radius:999px;
  background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.top-search i{position:absolute;left:14px;font-size:13px;color:var(--ink-300);}
.top-search input{
  width:100%;height:100%;border:0;background:transparent;
  padding:0 16px 0 36px;font-size:14px;border-radius:999px;
}
.top-search input::placeholder{color:var(--ink-300);}
.top-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(26,95,196,.18);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:var(--r-btn);
  background:#fff;border:1px solid rgba(26,95,196,.3);color:var(--brand-600);
  font-size:14px;font-weight:600;transition:all .2s ease;
}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-500);}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;background:#fff;border-bottom:1px solid var(--line);
  padding:48px 0 36px;overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.16;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#fff 0%,rgba(255,255,255,.84) 48%,rgba(255,255,255,.55) 100%);
}
.page-head .wrap{position:relative;z-index:1;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.page-head h1{
  margin-top:16px;font-size:40px;line-height:1.28;letter-spacing:-.01em;
}
.lede{
  margin-top:14px;max-width:760px;
  font-size:16px;line-height:1.85;color:var(--ink-700);
}
.head-meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:24px;
  font-size:14px;color:var(--ink-500);
}
.head-meta span{display:inline-flex;align-items:center;gap:8px;}
.head-meta i{color:var(--brand-500);}

/* ---------- 页面主体 ---------- */
.page-body{padding:32px 0 72px;flex:1 0 auto;}

/* ---------- 筛选 chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.chip{
  height:34px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-700);
  font-size:14px;cursor:pointer;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700);}
.chip.active{
  background:var(--brand-600);border-color:var(--brand-600);color:#fff;
  box-shadow:0 6px 16px rgba(26,95,196,.24);
}

/* ---------- 服务主区布局 ---------- */
.service-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;
  align-items:start;
}
.service-main{display:grid;gap:32px;}

/* ---------- 左右交错图文 ---------- */
.alt-row{
  display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:24px;box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease,transform .22s ease;
}
.alt-row:hover{box-shadow:var(--sh-md);transform:translateY(-2px);}
.alt-row.reverse .alt-media{order:2;}
.alt-row.reverse .alt-body{order:1;}
.alt-media{
  position:relative;aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;
  background:var(--brand-050);
}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.alt-row:hover .alt-media img{transform:scale(1.03);}
.alt-tag{
  display:inline-flex;align-items:center;gap:6px;
  height:22px;padding:0 10px;border-radius:999px;
  background:rgba(15,181,166,.12);color:#0A8C80;
  font-size:12px;font-weight:600;
}
.alt-body h3{margin-top:12px;font-size:20px;}
.alt-body p{margin-top:10px;font-size:15px;color:var(--ink-700);}
.alt-list{margin-top:14px;display:grid;gap:8px;}
.alt-list li{
  list-style:none;display:flex;align-items:flex-start;gap:8px;
  font-size:14px;color:var(--ink-500);
}
.alt-list i{color:var(--brand-500);font-size:12px;margin-top:7px;}

/* ---------- 流程步骤 ---------- */
.steps-block{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:28px 24px;box-shadow:var(--sh-sm);
}
.steps-block h2{font-size:26px;}
.section-sub{margin-top:10px;font-size:15px;color:var(--ink-500);}
.step-list{list-style:none;margin-top:24px;display:grid;gap:14px;}
.step-list li{
  display:grid;grid-template-columns:74px minmax(0,1fr);gap:20px;align-items:start;
  background:var(--brand-050);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;transition:all .22s ease;
}
.step-list li:hover{background:#fff;box-shadow:var(--sh-md);transform:translateY(-2px);}
.step-num{
  font-family:var(--font-num);font-size:34px;font-weight:800;line-height:1;
  color:var(--brand-600);letter-spacing:-.02em;
}
.step-list h3{font-size:18px;}
.step-list p{margin-top:6px;font-size:14px;color:var(--ink-700);}

/* ---------- 表单卡 ---------- */
.service-aside{position:sticky;top:72px;}
.coop-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:24px;box-shadow:var(--sh-md);
}
.coop-card h2{font-size:20px;}
.coop-sub{margin-top:8px;font-size:13px;color:var(--ink-500);line-height:1.7;}
.form-success{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-btn);
  background:#E7F8F2;border:1px solid #B7E8D8;color:#0A7A66;font-size:13px;line-height:1.7;
}
.form-success.show{display:block;}
.field{margin-top:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid #D7E0EE;border-radius:var(--r-btn);
  background:#fff;font-size:14px;color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-300);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(26,95,196,.18);
}
.field .err{display:none;margin-top:6px;font-size:13px;color:#D64545;}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D64545;}
.field.has-error .err{display:block;}
.btn-submit{
  width:100%;height:48px;margin-top:20px;border:0;border-radius:var(--r-btn);
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:all .2s ease;
}
.btn-submit:hover{background:#14509E;box-shadow:0 10px 24px rgba(26,95,196,.3);transform:translateY(-1px);}
.form-note{margin-top:14px;font-size:12px;color:var(--ink-300);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-block{margin-top:56px;}
.faq-head{margin-bottom:22px;}
.faq-head h2{font-size:26px;}
.faq-head p{margin-top:10px;font-size:15px;color:var(--ink-500);}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-sm);
}
.accordion-button{
  font-size:17px;font-weight:700;color:var(--ink-900);
  background:#fff;padding:18px 22px;border:0;box-shadow:none;
  border-radius:var(--r-card) !important;
}
.accordion-button:not(.collapsed){
  background:var(--brand-050);color:var(--brand-700);
  border-left:3px solid var(--brand-600);box-shadow:none;
}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(26,95,196,.18);border-color:transparent;}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:14px;color:var(--brand-600);transition:transform .25s ease;
  width:auto;height:auto;display:flex;align-items:center;
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg);}
.accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:56px;
  border-radius:20px;padding:40px;
  background:linear-gradient(120deg,var(--brand-700) 0%,var(--brand-600) 62%,var(--brand-500) 100%);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-copy{position:relative;z-index:1;max-width:620px;color:#fff;}
.cta-copy h2{color:#fff;font-size:26px;}
.cta-copy p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);line-height:1.8;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}
.btn-primary-c{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 24px;
  border-radius:var(--r-btn);background:#fff;color:var(--brand-700);
  font-size:15px;font-weight:700;border:1px solid #fff;transition:all .2s ease;
}
.btn-primary-c:hover{background:var(--brand-050);color:var(--brand-700);transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.16);}
.btn-outline-c{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 22px;
  border-radius:var(--r-btn);background:transparent;color:#fff;
  border:1px solid rgba(255,255,255,.55);font-size:15px;font-weight:600;
  transition:all .2s ease;
}
.btn-outline-c:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1D33;color:#C8D3E4;margin-top:0;}
.footer-inner{max-width:1280px;margin:0 auto;padding:56px 40px 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col a{display:block;color:#A9B8CE;font-size:14px;padding:6px 0;transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;line-height:1.8;color:#A9B8CE;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
}
.footer-brand strong{display:block;color:#fff;font-size:18px;line-height:1.25;}
.footer-brand em{display:block;font-style:normal;font-size:12px;color:#8FA3BF;letter-spacing:.16em;}
.footer-social{display:flex;gap:10px;margin-bottom:16px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;padding:0;
  background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;
  color:#fff;transition:background .2s ease,transform .2s ease;
}
.footer-social a:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px);}
.footer-btn{
  display:inline-flex !important;align-items:center;gap:8px;
  background:var(--brand-600);color:#fff !important;
  padding:10px 16px !important;border-radius:var(--r-btn);font-size:14px;font-weight:600;
}
.footer-btn:hover{background:var(--brand-700);}
.footer-bottom{
  margin-top:40px;padding:20px 0 24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA3BF;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .side-nav{width:76px;padding:20px 12px;}
  .nav-title{display:none;}
  .side-link{justify-content:center;padding:0;}
  .side-link .nav-label{
    position:absolute;left:64px;top:50%;transform:translateY(-50%) translateX(-6px);
    background:var(--ink-900);color:#fff;font-size:13px;font-weight:500;
    padding:6px 12px;border-radius:8px;white-space:nowrap;
    opacity:0;pointer-events:none;transition:all .18s ease;z-index:1060;
  }
  .side-link:hover .nav-label{opacity:1;transform:translateY(-50%) translateX(0);}
  .side-cta{width:44px;height:44px;padding:0;justify-content:center;}
  .side-cta .nav-label{display:none;}
  .main-wrap{margin-left:76px;}
  .topbar{padding:0 24px;}
  .wrap{padding:0 24px;}
}
@media (max-width:1099px){
  .service-layout{grid-template-columns:minmax(0,1fr);}
  .service-aside{position:static;}
  .coop-card{max-width:640px;}
}
@media (max-width:991px){
  .side-nav{
    width:280px;padding:24px 16px;
    transform:translateX(-100%);transition:transform .28s ease;
  }
  .side-nav.open{transform:translateX(0);box-shadow:var(--sh-lg);}
  .side-nav .nav-title{display:block;}
  .side-link{justify-content:flex-start;padding:0 14px;}
  .side-link .nav-label{position:static;opacity:1;transform:none;background:none;color:inherit;padding:0;font-size:15px;pointer-events:auto;}
  .side-cta{width:auto;height:44px;padding:0;justify-content:center;}
  .side-cta .nav-label{display:inline;}
  .main-wrap{margin-left:0;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    height:64px;padding:0 16px;background:#fff;border-bottom:1px solid var(--line);
    position:sticky;top:0;z-index:1035;
  }
  .mobile-brand{display:flex;align-items:center;gap:10px;color:var(--ink-900);}
  .mobile-brand i{
    width:34px;height:34px;border-radius:10px;
    background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
    color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;
  }
  .mobile-brand strong{font-size:16px;font-weight:700;line-height:1.1;display:block;}
  .mobile-brand em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.14em;}
  .mobile-actions{display:flex;gap:8px;}
  .menu-btn{
    width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
    background:#fff;color:var(--ink-700);display:flex;align-items:center;justify-content:center;
    cursor:pointer;transition:all .2s ease;
  }
  .menu-btn:hover{background:var(--brand-050);color:var(--brand-600);border-color:var(--brand-500);}
  .topbar{position:static;height:auto;padding:12px 16px;flex-wrap:wrap;gap:10px;}
  .topbar-right{width:100%;}
  .top-search{width:100%;}
  .wrap{padding:0 16px;}
  .page-head{padding:36px 0 28px;}
  .page-head h1{font-size:30px;}
  .lede{font-size:15px;}
  .footer-inner{padding:40px 16px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .alt-row{grid-template-columns:1fr;gap:20px;padding:18px;}
  .alt-row .alt-media{order:-1 !important;}
  .alt-row .alt-body{order:0 !important;}
  .step-list li{grid-template-columns:1fr;gap:10px;padding:18px;}
  .step-num{font-size:28px;}
  .cta-band{padding:28px 20px;}
  .cta-copy h2{font-size:22px;}
  .faq-head h2,.steps-block h2{font-size:22px;}
}
@media (max-width:575px){
  .page-head h1{font-size:26px;}
  .head-meta{flex-direction:column;gap:8px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-actions{width:100%;}
  .btn-primary-c,.btn-outline-c{width:100%;justify-content:center;}
}

/* roulang page: category2 */
:root{
  --brand-700:#12448F;
  --brand-600:#1A5FC4;
  --brand-500:#2C7BE5;
  --brand-100:#E3EDFB;
  --brand-050:#F2F7FE;
  --accent-500:#FF6B35;
  --teal-500:#0FB5A6;
  --teal-800:#0B7B70;
  --page-bg:#F4F7FC;
  --card-bg:#FFFFFF;
  --line:#E4EAF3;
  --ink-900:#16233A;
  --ink-700:#33415C;
  --ink-500:#6B7A90;
  --ink-300:#9AA8BC;
  --footer-bg:#0E1D33;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 1px 2px rgba(16,35,58,.06);
  --shadow-md:0 4px 14px rgba(16,35,58,.07);
  --shadow-hover:0 12px 32px rgba(16,35,58,.12);
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --side-w:240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--page-bg);
  color:var(--ink-700);
  font-size:16px;
  line-height:1.8;
}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
img{max-width:100%;display:block;border:0;}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;line-height:1.3;margin:0;}
p{margin:0 0 12px;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(26,95,196,.28);border-radius:8px;}

/* ---------- App Shell ---------- */
.app-side{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:1040;
  transition:transform .26s ease;
}
.side-logo{height:72px;display:flex;align-items:center;gap:10px;padding:0 18px;border-bottom:1px solid var(--line);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.logo-text strong{font-size:19px;color:var(--brand-700);letter-spacing:.5px;}
.logo-text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:3px;}
.side-nav{flex:1;padding:18px 12px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.nav-title{font-size:12px;color:var(--ink-300);letter-spacing:2px;padding:0 8px 8px;}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;
  border-radius:10px;color:var(--ink-700);font-size:15px;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.side-link i{width:18px;font-size:16px;text-align:center;color:var(--ink-500);transition:color .2s ease;}
.side-link:hover{background:var(--brand-050);color:var(--brand-600);}
.side-link:hover i{color:var(--brand-600);}
.side-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:700;}
.side-link.active i{color:var(--brand-600);}
.side-link.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;background:var(--brand-600);
}
.side-foot{padding:16px 12px 20px;border-top:1px solid var(--line);}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;height:44px;border-radius:10px;
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;box-shadow:var(--shadow-sm);
  transition:background .2s ease,transform .2s ease;
}
.side-cta:hover{background:#14509E;color:#fff;transform:translateY(-1px);}
.side-mask{display:none;}

/* ---------- 主区 ---------- */
.main-wrap{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.topbar{
  position:sticky;top:0;z-index:1030;height:60px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 40px;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-700);align-items:center;justify-content:center;font-size:15px;
}
.menu-toggle:hover{border-color:var(--brand-500);color:var(--brand-600);}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;margin:0;padding:0;background:none;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--ink-300);}
.breadcrumb .current{color:var(--ink-500);}
.topbar-right{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;width:220px;
  border:1px solid var(--line);border-radius:999px;background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--ink-300);font-size:13px;}
.search-box input{border:0;outline:none;flex:1;min-width:0;font-size:14px;color:var(--ink-900);background:transparent;}
.search-box input::placeholder{color:var(--ink-300);}
.search-box:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(26,95,196,.18);}
.topbar-btn{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 16px;border-radius:10px;
  border:1px solid rgba(26,95,196,.3);background:#fff;color:var(--brand-600);font-size:14px;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.topbar-btn:hover{background:var(--brand-050);color:var(--brand-700);}

.page-main{flex:1;width:100%;max-width:1280px;padding:32px 40px 0;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;border-radius:20px;overflow:hidden;padding:44px 40px;color:#fff;
  background:linear-gradient(100deg,rgba(18,68,143,.95) 0%,rgba(26,95,196,.87) 52%,rgba(44,123,229,.62) 100%),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--shadow-md);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:12px;letter-spacing:1px;margin-bottom:16px;
}
.hero-title{font-size:40px;line-height:1.25;color:#fff;margin-bottom:14px;letter-spacing:1px;}
.hero-sub{font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px;margin-bottom:26px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;}
.stat-item{display:flex;flex-direction:column;gap:2px;}
.stat-num{font-family:var(--mono);font-size:26px;font-weight:700;color:#fff;line-height:1.2;}
.stat-num small{font-size:13px;font-weight:400;margin-left:2px;color:rgba(255,255,255,.8);}
.stat-label{font-size:13px;color:rgba(255,255,255,.72);}

/* ---------- 通用板块 ---------- */
.section{padding:48px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap;}
.section-title{font-size:26px;position:relative;padding-left:14px;}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand-600);
}
.section-desc{font-size:14px;color:var(--ink-500);margin-top:8px;padding-left:14px;}
.section-more{font-size:14px;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px;}
.section-more:hover{gap:10px;}

/* ---------- 筛选 chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 24px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-700);font-size:14px;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-600);}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;}

/* ---------- 资料卡网格 ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.entity-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entity-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6E3F6;}
.entity-head{display:flex;align-items:center;gap:14px;}
.avatar{
  width:82px;height:82px;border-radius:50%;overflow:hidden;flex:0 0 auto;
  background:var(--brand-050);border:3px solid #fff;box-shadow:var(--shadow-sm);
}
.avatar img{width:100%;height:100%;object-fit:cover;}
.entity-meta{min-width:0;}
.entity-name{font-size:20px;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.badge-league{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);font-size:12px;font-weight:600;
}
.data-tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0;}
.data-tag{
  display:inline-flex;align-items:baseline;gap:4px;height:26px;padding:0 10px;border-radius:999px;
  background:rgba(15,181,166,.12);color:var(--teal-800);font-size:12px;line-height:26px;
}
.data-tag b{font-family:var(--mono);font-size:13px;font-weight:700;}
.entity-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand-600);
  transition:gap .2s ease;
}
.entity-link:hover{gap:10px;}

/* ---------- 位置分布 ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;}
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow-sm);}
.panel-title{font-size:17px;margin-bottom:18px;}
.pos-row{display:grid;grid-template-columns:88px 1fr 56px;align-items:center;gap:14px;padding:9px 0;}
.pos-name{font-size:14px;color:var(--ink-700);}
.pos-bar{height:8px;border-radius:999px;background:var(--brand-050);overflow:hidden;}
.pos-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-600),var(--brand-500));}
.pos-bar span.teal{background:linear-gradient(90deg,var(--teal-800),var(--teal-500));}
.pos-num{font-family:var(--mono);font-size:14px;color:var(--ink-900);text-align:right;}
.split-text h3{font-size:20px;margin-bottom:12px;}
.split-text p{font-size:15px;color:var(--ink-700);margin:0 0 12px;}
.split-list{list-style:none;padding:0;margin:16px 0 0;}
.split-list li{position:relative;padding-left:22px;font-size:15px;margin-bottom:8px;color:var(--ink-700);}
.split-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-100);border:2px solid var(--brand-600);
}

/* ---------- 数据指标 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease;
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.metric-num{font-family:var(--mono);font-size:28px;font-weight:700;color:var(--brand-700);line-height:1.2;}
.metric-num small{font-size:13px;font-weight:400;color:var(--ink-500);margin-left:4px;}
.metric-label{font-size:13px;color:var(--ink-500);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-acc .accordion-button{
  font-size:17px;font-weight:700;color:var(--ink-900);background:#fff;
  padding:18px 22px;border-left:3px solid transparent;box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-700);background:var(--brand-050);border-left-color:var(--brand-600);}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;font-size:20px;font-weight:400;color:var(--brand-600);
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform .22s ease,color .22s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.faq-acc .accordion-body{padding:2px 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-700);}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:34px 36px;border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(90deg,#EAF2FE 0%,#F7FAFF 100%);
}
.cta-band h2{font-size:22px;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--ink-700);max-width:620px;margin:0;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-solid,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;transition:background .2s ease,transform .2s ease,color .2s ease;
}
.btn-solid{background:var(--brand-600);color:#fff;}
.btn-solid:hover{background:#14509E;color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;border:1px solid rgba(26,95,196,.3);color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;padding:32px 0 4px;}
.pager a,.pager span{
  min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 12px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
  color:var(--ink-700);font-size:14px;transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.pager a:hover{border-color:var(--brand-500);color:var(--brand-600);}
.pager .current{background:var(--brand-600);border-color:var(--brand-600);color:#fff;}
.pager .current:hover{color:#fff;}
.pager .disabled{opacity:.4;pointer-events:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.78);margin-top:56px;}
.footer-inner{max-width:1280px;margin:0 auto;padding:56px 40px 24px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand-500),var(--brand-600));}
.footer-brand strong{display:block;color:#fff;font-size:19px;letter-spacing:.5px;line-height:1.2;}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:3px;color:rgba(255,255,255,.6);}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:14px;}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);margin:0;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-social{display:flex;gap:10px;margin-bottom:14px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;padding:0;
}
.footer-social a:hover{background:var(--brand-600);transform:none;color:#fff;}
.footer-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--radius-btn);
  background:var(--brand-600);color:#fff;font-size:14px;
}
.footer-btn:hover{background:#14509E;color:#fff;transform:none;}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199.98px){
  .app-side{width:76px;}
  .side-logo{justify-content:center;padding:0 8px;}
  .logo-text{display:none;}
  .nav-title{display:none;}
  .side-nav{padding:18px 10px;align-items:center;}
  .side-link{justify-content:center;padding:0;width:48px;}
  .nav-label{display:none;}
  .side-foot{padding:14px 10px 18px;}
  .side-cta{width:48px;padding:0;}
  .side-cta .cta-text{display:none;}
  .main-wrap{margin-left:76px;}
}
@media (max-width:991.98px){
  .app-side{width:280px;transform:translateX(-100%);box-shadow:0 0 40px rgba(16,35,58,.22);}
  .app-side.open{transform:translateX(0);}
  .side-mask{
    display:block;position:fixed;inset:0;z-index:1035;background:rgba(16,35,58,.45);
    opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
  }
  .side-mask.show{opacity:1;visibility:visible;}
  .main-wrap{margin-left:0;}
  .menu-toggle{display:inline-flex;}
  .topbar{padding:0 20px;}
  .page-main{padding:24px 20px 0;}
  .footer-inner{padding:48px 20px 24px;}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;gap:24px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-title{font-size:32px;}
}
@media (max-width:767.98px){
  .grid-cards{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .search-box{display:none;}
  .page-hero{padding:32px 22px;border-radius:16px;}
  .hero-title{font-size:27px;}
  .hero-sub{font-size:15px;}
  .hero-stats{gap:24px;}
  .stat-num{font-size:22px;}
  .section{padding:40px 0 0;}
  .section-title{font-size:22px;}
  .breadcrumb .current{max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .cta-band{padding:26px 22px;}
  .cta-actions{width:100%;}
  .btn-solid,.btn-ghost{flex:1 1 auto;padding:0 18px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:575.98px){
  .breadcrumb .crumb-home{display:none;}
  .breadcrumb .sep{display:none;}
  .topbar-btn{padding:0 12px;}
  .avatar{width:70px;height:70px;}
  .entity-name{font-size:18px;}
}