/* roulang page: index */
:root{
  --brand:#1F63A8;
  --brand-hover:#17518C;
  --brand-light:#EAF2FA;
  --brand-border:#CFE0F0;
  --accent:#E0851F;
  --accent-light:#FDF2E2;
  --accent-dark:#B26A0F;
  --teal:#2E9E93;
  --teal-light:#E7F5F2;
  --text:#17242F;
  --text-2:#4A5C6B;
  --text-3:#7A8A98;
  --bg:#F4F7FA;
  --card:#FFFFFF;
  --alt:#EDF3F9;
  --line:#E2E9F0;
  --warn:#D9822B;
  --danger:#C8493F;
  --footer:#16324A;
  --r-card:14px;
  --r-lg:20px;
  --r-input:10px;
  --shadow-card:0 1px 2px rgba(23,36,47,.04), 0 10px 24px -12px rgba(31,99,168,.18);
  --shadow-card-hover:0 1px 2px rgba(23,36,47,.05), 0 16px 32px -12px rgba(31,99,168,.28);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,dl,dt,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-light);color:var(--brand-hover);}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ============ 左侧 App Shell ============ */
.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:70;
}
.logo{height:72px;display:flex;align-items:center;padding:0 20px;border-bottom:1px solid var(--line);position:relative;flex:0 0 auto;}
.logo::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:0 3px 3px 0;background:var(--accent);}
.logo-link{display:flex;align-items:center;gap:10px;}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.02em;flex:0 0 auto;
}
.logo-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.side-nav{padding:16px 12px 8px;display:flex;flex-direction:column;gap:4px;}
.nav-item{
  display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-2);font-size:15px;font-weight:500;position:relative;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.nav-item svg{width:20px;height:20px;flex:0 0 auto;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:var(--bg);color:var(--text);}
.nav-item.is-active{background:var(--brand-light);color:var(--brand-hover);font-weight:700;}
.nav-item.is-active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;background:var(--accent);}
.side-sep{height:1px;background:var(--line);margin:12px 20px;}
.side-extra{padding:0 12px;display:flex;flex-direction:column;gap:10px;}
.side-link{
  display:flex;align-items:center;gap:10px;height:40px;padding:0 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);transition:background-color .18s ease-out,color .18s ease-out;
}
.side-link svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.side-link:hover{background:var(--bg);color:var(--text);}
.side-cta{
  display:flex;align-items:center;justify-content:center;height:44px;border-radius:10px;
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  transition:background-color .18s ease-out,transform .18s ease-out;
}
.side-cta:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);}
.side-cta:active{transform:translateY(0);}
.side-foot{margin-top:auto;padding:18px 20px 22px;border-top:1px solid var(--line);}
.side-foot p{font-size:12px;color:var(--text-3);line-height:1.6;}
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);align-items:center;justify-content:space-between;padding:0 16px;
  transition:box-shadow .2s ease-out;
}
.topbar.is-scrolled{box-shadow:0 2px 12px rgba(23,36,47,.08);}
.topbar .logo-link{gap:8px;}
.topbar-logo-text{font-size:17px;font-weight:700;}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.burger svg{width:22px;height:22px;stroke:var(--text);fill:none;stroke-width:1.5;stroke-linecap:round;}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(23,36,47,.45);z-index:75;
}
.drawer-mask.is-open{display:block;}

/* ============ 主区域 ============ */
.shell{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}

/* 倒计时条 */
.countbar{
  position:sticky;top:0;z-index:60;background:#fff;border-bottom:2px solid var(--brand);
  box-shadow:0 2px 12px rgba(23,36,47,.08);
}
.countbar-inner{display:flex;align-items:center;gap:18px;min-height:60px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;}
.count-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-light);color:var(--accent-dark);font-size:12px;font-weight:700;letter-spacing:.02em;
}
.count-text{font-size:14px;color:var(--text-2);}
.count-clock{margin-left:auto;display:flex;align-items:center;gap:8px;}
.clock-unit{
  display:inline-flex;align-items:center;gap:4px;background:var(--accent-light);border-radius:12px;
  padding:6px 10px;
}
.clock-unit b{
  font-size:20px;font-weight:700;color:var(--accent-dark);
  font-variant-numeric:tabular-nums;min-width:28px;text-align:center;
}
.clock-unit i{font-size:11px;font-style:normal;color:var(--accent-dark);opacity:.8;}

/* ============ 通用排版 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--alt);background:linear-gradient(180deg,#FFFFFF 0%,var(--alt) 100%);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:30px;font-weight:700;line-height:1.3;letter-spacing:.01em;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text-2);line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--r-input);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -10px rgba(31,99,168,.55);}
.btn-primary:hover{background:var(--brand-hover);color:#fff;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-border);}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-hover);}
.btn[disabled]{opacity:.62;cursor:not-allowed;transform:none;}
.btn-spinner{
  display:none;width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;animation:spin .7s linear infinite;
}
.btn.is-loading .btn-spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag-teal{background:var(--teal-light);color:#1F6F67;}
.tag-brand{background:var(--brand-light);color:var(--brand-hover);}
.tag-accent{background:var(--accent-light);color:var(--accent-dark);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
}
.link-more svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s ease-out;}
.link-more:hover svg{transform:translateX(3px);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.84) 48%,rgba(234,242,250,.72) 100%);
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding-top:84px;padding-bottom:84px;min-height:520px;
}
.hero-badge{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--brand-border);color:var(--brand-hover);
  font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{
  font-size:42px;font-weight:700;line-height:1.25;letter-spacing:.01em;color:var(--text);
}
.hero-sub{margin-top:18px;font-size:18px;line-height:1.75;color:var(--text-2);max-width:520px;}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.stat-row{
  margin-top:38px;display:flex;flex-wrap:wrap;gap:0;padding-top:22px;border-top:1px solid var(--brand-border);
}
.stat-row li{padding:0 26px;border-left:1px solid var(--brand-border);}
.stat-row li:first-child{padding-left:0;border-left:0;}
.stat-row strong{
  display:block;font-size:26px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-row span{display:block;font-size:13px;color:var(--text-3);margin-top:4px;}
.hero-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:0 1px 2px rgba(23,36,47,.04),0 22px 44px -22px rgba(31,99,168,.32);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-card-info{padding:20px 22px 22px;}
.hero-card-info p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;}

/* ============ 卖点 01-04 ============ */
.point-list{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);}
.point{display:flex;gap:16px;padding:32px 26px 32px 0;border-right:1px solid var(--line);}
.point:last-child{border-right:0;padding-right:0;}
.point-num{
  flex:0 0 auto;width:40px;height:40px;border-radius:8px;background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.point h3{font-size:19px;font-weight:600;line-height:1.45;}
.point p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ 图墙 ============ */
.wall{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:106px;gap:16px;}
.wall-item{position:relative;overflow:hidden;border-radius:16px;background:var(--brand-light);}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.wall-item:hover img{transform:scale(1.03);}
.wall-item figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:30px 16px 14px;
  font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(to top,rgba(23,36,47,.74),rgba(23,36,47,0));
  opacity:0;transition:opacity .22s ease-out;
}
.wall-item:hover figcaption{opacity:1;}
.w1{grid-column:span 3;grid-row:span 2;}
.w2{grid-column:span 3;}
.w3{grid-column:span 2;}
.w4{grid-column:span 1;}
.w5{grid-column:span 2;}
.w6{grid-column:span 4;}

/* ============ 表单 CTA ============ */
.cta-panel{
  background:var(--brand-light);border:1px solid var(--brand-border);border-radius:var(--r-lg);
  padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.cta-left h2{font-size:30px;font-weight:700;line-height:1.3;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2);line-height:1.75;}
.cta-points li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;background:var(--brand);border-radius:1px;
}
.cta-form{background:#fff;border:1px solid var(--brand-border);border-radius:var(--r-card);padding:24px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:#fff;border:1px solid var(--brand-border);border-radius:var(--r-input);
  padding:12px 14px;font-size:15px;line-height:1.6;color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{resize:vertical;min-height:92px;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:hover,.field textarea:hover{border-color:var(--brand);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,99,168,.16);
}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);}
.cta-form .btn{width:100%;}
.form-hint{margin-top:12px;font-size:12px;line-height:1.7;color:var(--text-3);}
.form-msg{display:none;margin-top:12px;font-size:13px;line-height:1.7;border-radius:var(--r-input);padding:10px 12px;}
.form-msg.is-ok{display:block;background:var(--teal-light);color:#1F6F67;border:1px solid #C9E8E3;}
.form-msg.is-err{display:block;background:#FDECEA;color:#8F2F27;border:1px solid #F3CFCB;}

/* ============ 最新信息 ============ */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:var(--brand-border);}
.post-thumb{
  height:150px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:30px;font-weight:700;letter-spacing:.02em;
}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.post-card h3{
  font-size:18px;font-weight:600;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-summary{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);
}
.post-foot svg{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s ease-out;}
.post-card:hover .post-foot svg{transform:translateX(3px);}
.cms-empty{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;background:#fff;border:1px dashed var(--brand-border);border-radius:var(--r-card);
  color:var(--text-3);font-size:15px;
}
.cms-empty svg{width:36px;height:36px;stroke:var(--brand-border);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 分类导览 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cat-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);color:var(--text);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:var(--brand-border);color:var(--text);}
.cat-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-light);}
.cat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.cat-card:hover .cat-thumb img{transform:scale(1.04);}
.cat-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.cat-body h3{font-size:19px;font-weight:600;}
.cat-body p{font-size:14px;color:var(--text-2);line-height:1.8;}
.cat-more{
  margin-top:auto;padding-top:12px;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.cat-more::after{content:"→";font-size:15px;transition:transform .18s ease-out;}
.cat-card:hover .cat-more::after{transform:translateX(3px);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;}
.faq-item.is-open{border-color:var(--brand-border);box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;min-height:56px;padding:14px 20px;
  background:none;border:0;cursor:pointer;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:background-color .18s ease-out;
}
.faq-q:hover{background:var(--bg);}
.faq-q .q-mark{
  flex:0 0 auto;width:22px;height:22px;border-radius:5px;background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
}
.faq-q .q-toggle{
  margin-left:auto;flex:0 0 auto;width:20px;height:20px;position:relative;
}
.faq-q .q-toggle::before,.faq-q .q-toggle::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .22s ease-out,opacity .22s ease-out;
}
.faq-q .q-toggle::before{left:3px;right:3px;top:9px;height:2px;}
.faq-q .q-toggle::after{top:3px;bottom:3px;left:9px;width:2px;}
.faq-item.is-open .q-toggle::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s ease-out,opacity .22s ease-out;}
.faq-item.is-open .faq-a{max-height:320px;opacity:1;}
.faq-a p{padding:0 20px 20px 56px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ============ 页脚 ============ */
.footer{background:var(--footer);color:#C9D6E2;margin-top:auto;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;
}
.footer-logo{color:#fff;font-size:20px;font-weight:700;letter-spacing:.01em;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:#9FB3C6;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:#9FB3C6;}
.footer-col a{color:#C9D6E2;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#8FA5B8;}

/* ============ 响应式 ============ */
@media (min-width:1024px) and (max-width:1199px){
  :root{--sidebar-w:76px;}
  .logo{justify-content:center;padding:0;}
  .logo-text{display:none;}
  .side-nav{padding:16px 10px 8px;align-items:center;}
  .nav-item{
    flex-direction:column;gap:4px;height:auto;padding:10px 4px;width:100%;justify-content:center;position:relative;
  }
  .nav-item span{font-size:11px;line-height:1.2;text-align:center;}
  .nav-item::after{
    content:attr(data-label);position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);
    background:#17242F;color:#fff;font-size:13px;font-weight:500;padding:6px 10px;border-radius:8px;
    white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .18s ease-out;z-index:90;
  }
  .nav-item:hover::after{opacity:1;}
  .side-extra{padding:0 10px;align-items:center;}
  .side-link{justify-content:center;padding:0;width:100%;}
  .side-link span{display:none;}
  .side-cta{font-size:12px;text-align:center;padding:0 6px;}
  .side-foot{padding:16px 10px 20px;text-align:center;}
  .side-foot p{font-size:11px;}
}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:36px;min-height:0;padding-top:64px;padding-bottom:64px;}
  .hero h1{font-size:34px;}
  .point-list{grid-template-columns:repeat(2,1fr);}
  .point{border-right:0;border-bottom:1px solid var(--line);padding:28px 22px 28px 0;}
  .point:nth-child(2n){padding-right:0;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .topbar{display:flex;}
  .shell{margin-left:0;padding-top:56px;}
  .sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .24s ease-out;box-shadow:0 0 0 rgba(0,0,0,0);
  }
  .sidebar.is-open{transform:translateX(0);box-shadow:0 18px 40px rgba(23,36,47,.28);}
  .logo{justify-content:flex-start;padding:0 20px;}
  .logo-text{display:inline;}
  .side-nav{padding:16px 12px 8px;}
  .nav-item{flex-direction:row;gap:12px;height:48px;padding:0 12px;justify-content:flex-start;}
  .nav-item span{font-size:15px;text-align:left;}
  .side-extra{padding:0 12px;}
  .side-link{justify-content:flex-start;padding:0 12px;width:auto;}
  .side-link span{display:inline;}
  .side-cta{font-size:15px;padding:0;}
  .side-foot{padding:18px 20px 22px;text-align:left;}
  .side-foot p{font-size:12px;}
  .countbar{top:56px;}
  .countbar-inner{gap:12px;min-height:auto;padding:10px 24px;}
  .count-text{font-size:13px;width:100%;order:2;}
  .count-tag{order:1;}
  .count-clock{order:1;margin-left:auto;}
  .container{padding:0 20px;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .stat-row li{padding:0 18px;}
  .stat-row li:first-child{padding-left:0;}
  .stat-row strong{font-size:22px;}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:132px;}
  .wall-item{grid-column:span 1 !important;grid-row:span 1 !important;}
  .wall-item figcaption{opacity:1;font-size:14px;padding:24px 12px 12px;}
  .cta-panel{grid-template-columns:1fr;gap:28px;padding:24px;}
  .cta-left h2{font-size:24px;}
  .post-grid{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15px;padding:12px 16px;}
  .faq-a p{padding:0 16px 18px;font-size:14px;padding-left:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .hero h1{font-size:26px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .stat-row{gap:16px 0;}
  .stat-row li{padding:0 14px;}
  .stat-row span{font-size:12px;}
  .point-list{grid-template-columns:1fr;}
  .point{padding:24px 0;}
  .clock-unit{padding:5px 8px;}
  .clock-unit b{font-size:18px;min-width:24px;}
  .cta-form{padding:18px;}
  .cta-form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
  .wall-item:hover img,.cat-card:hover .cat-thumb img{transform:none;}
  .post-card:hover,.cat-card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand:#1F63A8;
  --brand-hover:#17518C;
  --brand-soft:#EAF2FA;
  --brand-line:#CFE0F0;
  --accent:#E0851F;
  --accent-soft:#FDF2E2;
  --accent-deep:#B26A0F;
  --teal:#2E9E93;
  --teal-soft:#E6F5F3;
  --teal-deep:#1F7A71;
  --ink:#17242F;
  --ink-2:#4A5C6B;
  --ink-3:#7A8A98;
  --bg:#F4F7FA;
  --card:#FFFFFF;
  --alt:#EDF3F9;
  --line:#E2E9F0;
  --warn:#D9822B;
  --danger:#C8493F;
  --footer:#16324A;
  --footer-text:#C9D6E2;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --r-count:12px;
  --sh-card:0 1px 2px rgba(23,36,47,.04), 0 10px 24px -12px rgba(31,99,168,.18);
  --sh-card-hover:0 1px 2px rgba(23,36,47,.05), 0 16px 32px -14px rgba(31,99,168,.28);
  --sh-sticky:0 2px 12px rgba(23,36,47,.08);
  --sidebar:248px;
  --t:200ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:28px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
body.is-locked{overflow:hidden}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar);
  height:100vh;
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:0 16px 18px;
  overflow-y:auto;
  z-index:60;
}
.brand{
  position:relative;
  display:flex;
  align-items:center;
  height:72px;
  padding-left:16px;
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--ink);
  flex:none;
}
.brand::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:26px;
  border-radius:2px;
  background:var(--accent);
}
.brand-text{white-space:nowrap}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-2);
  transition:background var(--t) ease-out,color var(--t) ease-out;
}
.nav-item svg{
  width:20px;height:20px;flex:none;
  fill:none;stroke:currentColor;stroke-width:1.5;
  stroke-linecap:round;stroke-linejoin:round;
}
.nav-item:hover{background:var(--bg);color:var(--ink)}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:22px;
  border-radius:2px;
  background:var(--accent);
}
.side-divider{height:1px;background:var(--line);margin:18px 0}
.side-links{display:flex;flex-direction:column;gap:2px;margin-bottom:14px}
.side-link{
  display:flex;
  align-items:center;
  min-height:40px;
  padding:0 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--ink-2);
  transition:background var(--t) ease-out,color var(--t) ease-out;
}
.side-link:hover{background:var(--bg);color:var(--brand)}
.side-foot{
  margin-top:auto;
  padding:16px 12px 0;
  border-top:1px solid var(--line);
  font-size:12px;
  line-height:1.7;
  color:var(--ink-3);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  text-align:center;
  transition:background var(--t) ease-out,color var(--t) ease-out,transform var(--t) ease-out,box-shadow var(--t) ease-out,border-color var(--t) ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(31,99,168,.6)}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- 主内容 ---------- */
.main{
  margin-left:var(--sidebar);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0}
.section.alt{background:var(--alt)}
.section-head{max-width:820px}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:.01em}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2)}
.section-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:34px;
  height:26px;
  padding:0 8px;
  margin-bottom:14px;
  border-radius:6px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{padding:16px 0;font-size:13px;color:var(--ink-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--brand-line)}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline}
.breadcrumb [aria-current="page"]{color:var(--ink-3)}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  background-image:linear-gradient(102deg,rgba(255,255,255,.90),rgba(234,242,250,.82)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-inner{max-width:820px;padding:64px 0 72px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--accent-soft);
  color:var(--accent-deep);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.hero-inner h1{
  margin-top:20px;
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:.005em;
}
.hero-sub{
  margin-top:18px;
  max-width:640px;
  font-size:18px;
  line-height:1.8;
  color:var(--ink-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-stats li{
  padding:0 28px;
  border-left:1px solid var(--line);
}
.hero-stats li:first-child{padding-left:0;border-left:0}
.hero-stats strong{
  display:block;
  color:var(--accent);
  font-size:24px;
  font-weight:700;
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.hero-stats span{font-size:13px;color:var(--ink-3)}

/* ---------- 入口总览要点 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  margin-top:44px;
}
.point{
  position:relative;
  padding-left:20px;
  border-left:1px solid var(--line);
}
.point .num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:32px;
  height:24px;
  padding:0 8px;
  border-radius:6px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.point h3{margin-top:14px;font-size:19px;font-weight:600;line-height:1.5}
.point p{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.8}

/* ---------- 图墙 ---------- */
.gallery{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  grid-auto-rows:132px;
  gap:16px;
  margin-top:44px;
}
.g-item{
  position:relative;
  overflow:hidden;
  border-radius:16px;
  background:var(--brand-soft);
  box-shadow:var(--sh-card);
}
.g-item img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 240ms ease-out;
}
.g-item::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:64%;
  background:linear-gradient(to top,rgba(23,36,47,.74),rgba(23,36,47,0));
  opacity:0;
  transition:opacity 240ms ease-out;
}
.g-item figcaption{
  position:absolute;
  left:16px;right:16px;bottom:14px;
  z-index:2;
  color:#fff;
  font-size:15px;
  font-weight:600;
  opacity:0;
  transform:translateY(6px);
  transition:opacity 240ms ease-out,transform 240ms ease-out;
}
.g-item:hover img{transform:scale(1.03)}
.g-item:hover::after,
.g-item:hover figcaption,
.g-item:focus-within::after,
.g-item:focus-within figcaption{opacity:1;transform:none}
.g-a{grid-column:span 3;grid-row:span 2}
.g-b{grid-column:span 3;grid-row:span 1}
.g-c{grid-column:span 3;grid-row:span 1}
.g-d,.g-e,.g-f{grid-column:span 2;grid-row:span 1}

/* ---------- 入口明细清单 ---------- */
.entry-list{margin-top:40px;border-top:1px solid var(--line)}
.entry-row{
  display:grid;
  grid-template-columns:60px 190px 1fr 150px;
  gap:20px;
  align-items:center;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--t) ease-out;
}
.entry-row:hover{background:rgba(234,242,250,.6)}
.entry-no{
  font-size:15px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.entry-name{font-size:17px;font-weight:600;line-height:1.5}
.entry-desc{font-size:15px;color:var(--ink-2);line-height:1.8}
.tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
}
.tag-teal{background:var(--teal-soft);color:var(--teal-deep)}
.tag-amber{background:var(--accent-soft);color:var(--accent-deep)}
.tag-blue{background:var(--brand-soft);color:var(--brand)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:36px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  transition:border-color var(--t) ease-out,box-shadow var(--t) ease-out;
}
.faq-item:hover{border-color:var(--brand-line)}
.faq-item.is-open{border-color:var(--brand-line);box-shadow:var(--sh-card)}
.faq-q{
  display:flex;
  align-items:center;
  gap:12px;
  width:100%;
  min-height:56px;
  padding:12px 20px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
}
.faq-q .q-mark{
  display:grid;
  place-items:center;
  width:22px;height:22px;
  flex:none;
  border-radius:5px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:700;
}
.faq-q .plus{
  position:relative;
  width:16px;height:16px;
  margin-left:auto;
  flex:none;
  color:var(--brand);
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
  transition:opacity 220ms ease-out,transform 220ms ease-out;
}
.faq-q .plus::before{left:0;top:7px;width:16px;height:2px}
.faq-q .plus::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-q .plus::after{opacity:0;transform:scaleY(.2)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 220ms ease-out;
}
.faq-a .inner{
  padding:0 20px 22px 54px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-2);
}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--brand-soft);
  border-radius:var(--r-lg);
  padding:40px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:36px;
  align-items:center;
  border:1px solid var(--brand-line);
}
.cta-block h2{font-size:28px;line-height:1.4;font-weight:700}
.cta-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
}
.cta-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  background:var(--brand);
}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-note{font-size:12px;color:var(--ink-3);line-height:1.7;margin-top:4px}

/* ---------- 页脚 ---------- */
.footer{background:var(--footer);color:var(--footer-text);margin-top:auto}
.footer .container{padding-top:60px;padding-bottom:28px}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-logo{
  display:inline-block;
  font-size:19px;
  font-weight:700;
  color:#fff;
  letter-spacing:.01em;
}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:var(--footer-text);max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;line-height:1.7;color:var(--footer-text)}
.footer-col a{color:var(--footer-text);transition:color var(--t) ease-out}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(201,214,226,.82);
}

/* ---------- 顶部条 / 抽屉 ---------- */
.topbar{display:none}
.overlay{
  position:fixed;
  inset:0;
  background:rgba(23,36,47,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity 240ms ease-out,visibility 240ms ease-out;
  z-index:55;
}
.overlay.is-open{opacity:1;visibility:visible}
.menu-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink);
  cursor:pointer;
}
.menu-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.topbar-brand{
  position:relative;
  padding-left:12px;
  font-size:17px;
  font-weight:700;
}
.topbar-brand::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:20px;
  border-radius:2px;
  background:var(--accent);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px) and (min-width:1024px){
  :root{--sidebar:76px}
  .sidebar{padding:0 10px 14px}
  .brand{padding-left:0;justify-content:center;height:72px}
  .brand::before{display:none}
  .brand-text{font-size:11px;line-height:1.2;text-align:center;white-space:normal;font-weight:700}
  .nav-item{
    flex-direction:column;
    gap:4px;
    min-height:58px;
    padding:8px 2px;
    font-size:11px;
    text-align:center;
  }
  .nav-item span{font-size:11px;line-height:1.25}
  .nav-item::after{
    content:attr(data-label);
    position:absolute;
    left:calc(100% + 12px);
    top:50%;
    transform:translateY(-50%);
    padding:6px 10px;
    border-radius:8px;
    background:var(--footer);
    color:#fff;
    font-size:12px;
    font-weight:500;
    white-space:nowrap;
    opacity:0;
    pointer-events:none;
    transition:opacity 180ms ease-out;
    z-index:80;
  }
  .nav-item:hover::after{opacity:1}
  .side-link{justify-content:center;font-size:11px;padding:0 4px;text-align:center;line-height:1.3}
  .side-foot{font-size:11px;padding-left:0;padding-right:0;text-align:center}
  .point-grid{grid-template-columns:repeat(2,1fr)}
  .cta-block{grid-template-columns:1fr;gap:26px}
}
@media (max-width:1023px){
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    transition:transform 240ms ease-out;
    box-shadow:0 0 40px rgba(23,36,47,.25);
  }
  .sidebar.is-open{transform:none}
  .main{margin-left:0;padding-top:56px}
  .topbar{
    display:flex;
    position:fixed;
    top:0;left:0;right:0;
    height:56px;
    align-items:center;
    justify-content:space-between;
    padding:0 16px;
    background:#fff;
    border-bottom:1px solid var(--line);
    z-index:70;
    transition:box-shadow var(--t) ease-out;
  }
  .topbar.is-scrolled{box-shadow:var(--sh-sticky)}
  .point-grid{grid-template-columns:repeat(2,1fr)}
  .entry-row{grid-template-columns:44px 1fr;grid-template-areas:"no name" "desc desc" "tag tag";gap:10px 16px}
  .entry-no{grid-area:no}
  .entry-name{grid-area:name}
  .entry-desc{grid-area:desc}
  .entry-row .tag{grid-area:tag;justify-self:start}
  .cta-block{grid-template-columns:1fr;gap:26px;padding:32px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:60px 0}
  .section-head h2{font-size:24px}
  .section-head p{font-size:15px}
  .hero-inner{padding:44px 0 52px}
  .hero-inner h1{font-size:29px;line-height:1.3}
  .hero-sub{font-size:16px;margin-top:14px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stats{margin-top:30px}
  .hero-stats li{padding:0 16px}
  .hero-stats strong{font-size:20px}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:120px;gap:12px}
  .g-a,.g-b,.g-c,.g-d,.g-e,.g-f{grid-column:span 1;grid-row:span 1}
  .g-a{grid-column:span 2;grid-row:span 1}
  .point-grid{grid-template-columns:1fr;gap:0}
  .point{padding:20px 0 20px 18px;border-left:1px solid var(--line)}
  .point:first-child{padding-top:0}
  .faq-q{font-size:15px;padding:12px 16px}
  .faq-a .inner{padding:0 16px 20px 46px;font-size:14.5px}
  .cta-block{padding:24px}
  .cta-block h2{font-size:22px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer .container{padding-top:44px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .hero-inner h1{font-size:26px}
  .hero-stats{flex-direction:column;align-items:flex-start;gap:14px}
  .hero-stats li{padding:0;border-left:0}
  .gallery{grid-template-columns:1fr}
  .g-a{grid-column:span 1}
  .entry-name{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
}
@media (hover:none){
  .g-item::after,.g-item figcaption{opacity:1;transform:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .g-item:hover img{transform:none}
}

/* roulang page: article */
:root{
  --brand:#1F63A8;
  --brand-hover:#17518C;
  --brand-light:#EAF2FA;
  --brand-line:#CFE0F0;
  --accent:#E0851F;
  --accent-light:#FDF2E2;
  --accent-dark:#B26A0F;
  --teal:#2E9E93;
  --teal-light:#E3F3F1;
  --teal-text:#1F7E75;
  --text:#17242F;
  --text-2:#4A5C6B;
  --text-3:#7A8A98;
  --bg:#F4F7FA;
  --card:#FFFFFF;
  --alt:#EDF3F9;
  --line:#E2E9F0;
  --footer-bg:#16324A;
  --footer-text:#C9D6E2;
  --warn:#D9822B;
  --danger:#C8493F;
  --r-sm:10px;
  --r-card:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,36,47,.04);
  --sh-2:0 1px 2px rgba(23,36,47,.04),0 10px 24px -12px rgba(31,99,168,.18);
  --sh-3:0 2px 12px rgba(23,36,47,.08);
  --rail-w:248px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{max-width:1240px;margin:0 auto;padding:0 32px}

/* ================= 左侧栏 ================= */
.side-rail{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail-w);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:60;
  transition:transform .24s var(--ease),width .24s var(--ease);
}
.rail-logo{
  display:flex;
  align-items:center;
  gap:10px;
  height:72px;
  padding:0 20px;
  border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.logo-bar{width:4px;height:26px;border-radius:2px;background:var(--accent);flex:0 0 auto}
.logo-text{font-size:19px;font-weight:700;color:var(--brand);letter-spacing:.01em;white-space:nowrap}
.side-nav{
  padding:16px 12px;
  display:flex;
  flex-direction:column;
  gap:6px;
  flex:1 1 auto;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 12px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:15px;
}
.nav-item svg{
  width:20px;height:20px;flex:0 0 auto;
  stroke:currentColor;fill:none;
  stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;
}
.nav-item span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item:hover{background:#F4F7FA;color:var(--text)}
.nav-item.is-active{background:var(--brand-light);color:var(--brand);font-weight:600}
.nav-item.is-active::before{
  content:"";
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--accent);
}
.rail-divider{height:1px;background:var(--line);margin:8px 20px 14px;flex:0 0 auto}
.rail-cta{
  display:block;
  margin:0 16px 14px;
  padding:12px 16px;
  text-align:center;
  background:var(--brand);
  color:#fff;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  box-shadow:0 6px 16px -8px rgba(31,99,168,.6);
}
.rail-cta:hover{background:var(--brand-hover);transform:translateY(-1px)}
.rail-cta:active{transform:translateY(0)}
.rail-foot{padding:0 20px 24px;font-size:12px;color:var(--text-3);flex:0 0 auto}
.rail-foot p{line-height:1.6}

/* ================= 顶栏与抽屉 ================= */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:#fff;
  border-bottom:1px solid var(--line);
  z-index:70;
  transition:box-shadow .2s var(--ease);
}
.topbar.is-scrolled{box-shadow:var(--sh-3)}
.topbar-logo{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:700;color:var(--brand)}
.menu-btn{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--text);
}
.menu-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round}
.menu-btn:hover{background:var(--bg);border-color:var(--brand-line)}
.rail-mask{
  position:fixed;inset:0;
  background:rgba(23,36,47,.45);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:80;
}
.rail-mask.is-open{opacity:1;visibility:visible}

/* ================= 主内容 ================= */
.shell{margin-left:var(--rail-w);min-height:100vh;display:flex;flex-direction:column;transition:margin-left .24s var(--ease)}
.page{
  flex:1 1 auto;
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:28px 32px 96px;
}

/* 面包屑 */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3CEDA;font-size:12px}
.breadcrumb .cur{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-3)}

/* 文章头部 */
.article-head{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:36px 40px 28px;
  box-shadow:var(--sh-1);
}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  background:var(--teal-light);color:var(--teal-text);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{
  font-size:34px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:.005em;
  margin:14px 0 0;
  color:var(--text);
  overflow-wrap:break-word;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  margin-top:20px;padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row .meta-item svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.meta-dot{width:3px;height:3px;border-radius:50%;background:#C9D5E0}
.article-cover{margin-top:24px;border-radius:var(--r-card);overflow:hidden;background:var(--brand-light)}
.article-cover img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* 正文布局 */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 220px;
  gap:48px;
  justify-content:center;
  align-items:start;
  margin-top:32px;
}
.article-layout.no-toc{grid-template-columns:minmax(0,760px)}

.article-body{
  max-width:760px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:40px;
  box-shadow:var(--sh-1);
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body strong,.article-body b{color:var(--text);font-weight:600}
.article-body h2{
  position:relative;
  margin:40px 0 16px;
  padding-left:16px;
  font-size:22px;
  line-height:1.45;
  font-weight:700;
  color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;
  width:4px;border-radius:2px;background:var(--accent);
}
.article-body h3{margin:28px 0 10px;font-size:18px;font-weight:600;color:var(--text)}
.article-body h4{margin:22px 0 8px;font-size:16px;font-weight:600;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding:0}
.article-body ul li{position:relative;padding-left:20px;margin:.45em 0}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:olnum;padding-left:0}
.article-body ol li{position:relative;padding-left:30px;margin:.5em 0;counter-increment:olnum}
.article-body ol li::before{
  content:counter(olnum);
  position:absolute;left:0;top:.25em;
  width:20px;height:20px;line-height:20px;text-align:center;
  border-radius:6px;background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:700;
}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;
  background:var(--brand-light);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto;max-width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--text-3);text-align:center}
.article-body a{color:var(--brand);border-bottom:1px solid var(--brand-line)}
.article-body a:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover)}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:var(--alt);padding:2px 6px;border-radius:6px;color:var(--brand-hover);
}
.article-body pre{
  margin:24px 0;padding:18px 20px;background:#17242F;color:#E4EDF5;
  border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:var(--brand-light);color:var(--text);font-weight:600}
.table-scroll{overflow-x:auto;margin:24px 0;-webkit-overflow-scrolling:touch}
.table-scroll table{min-width:520px;margin:0}

/* 空状态 */
.empty-state{
  text-align:center;
  padding:56px 20px;
  border:1px dashed var(--brand-line);
  border-radius:var(--r-card);
  background:var(--alt);
}
.empty-state svg{
  width:44px;height:44px;margin:0 auto 16px;
  stroke:var(--brand);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;
}
.empty-title{font-size:18px;font-weight:600;color:var(--text);margin-bottom:8px}
.empty-desc{font-size:14px;color:var(--text-3);margin-bottom:22px}

/* 目录 */
.toc{
  position:sticky;top:28px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px 16px;
  box-shadow:var(--sh-1);
}
.toc-title{
  font-size:14px;font-weight:700;color:var(--text);
  letter-spacing:.02em;margin-bottom:12px;padding-left:10px;
  border-left:3px solid var(--accent);line-height:1.2;
}
.toc ul{display:flex;flex-direction:column;gap:2px;max-height:56vh;overflow:auto}
.toc a{
  display:block;
  padding:7px 10px;
  font-size:13px;line-height:1.5;
  color:var(--text-2);
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
}
.toc a:hover{background:var(--bg);color:var(--brand)}
.toc a.is-current{background:var(--brand-light);color:var(--brand);border-left-color:var(--brand);font-weight:600}
.top-btn{
  margin-top:14px;width:100%;height:38px;
  display:flex;align-items:center;justify-content:center;gap:6px;
  border:1px solid var(--brand-line);border-radius:var(--r-sm);
  background:#fff;color:var(--brand);font-size:13px;font-weight:600;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.top-btn svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.top-btn:hover{background:var(--brand-light);border-color:var(--brand)}

/* 文末区块 */
.article-foot{max-width:1028px;margin:44px auto 0}
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:20px 0 0;
  border-top:1px solid var(--line);
}
.tag-label{font-size:13px;color:var(--text-3);font-weight:600}
.tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--alt);border:1px solid var(--line);
  font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--text-2);
}
.tag:hover{background:var(--brand-light);border-color:var(--brand-line);color:var(--brand)}
.foot-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px}
.foot-card{
  display:block;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.foot-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--sh-2)}
.foot-card-k{display:block;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--accent-dark);margin-bottom:8px}
.foot-card h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:6px}
.foot-card p{font-size:13px;color:var(--text-3);line-height:1.65}
.back-row{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px -10px rgba(31,99,168,.75)}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line)}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-2px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ================= 页脚 ================= */
.footer{
  margin-top:auto;
  background:var(--footer-bg);
  color:var(--footer-text);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding:56px 0 40px;
}
.footer-logo{display:inline-block;font-size:20px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.01em}
.footer-brand p{font-size:13px;line-height:1.8;color:var(--footer-text);max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:13px;line-height:1.7;color:var(--footer-text)}
.footer-col a{font-size:13px;color:var(--footer-text)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(201,214,226,.75);
}

/* ================= 响应式 ================= */
@media (max-width:1360px){
  .article-layout{grid-template-columns:minmax(0,760px)}
  .article-layout.no-toc{grid-template-columns:minmax(0,760px)}
  .toc{display:none}
}
@media (max-width:1199px) and (min-width:769px){
  :root{--rail-w:76px}
  .rail-logo{justify-content:center;padding:0}
  .rail-logo .logo-text{display:none}
  .side-nav{padding:12px 8px;gap:6px;overflow:visible}
  .nav-item{
    flex-direction:column;justify-content:center;gap:4px;
    height:60px;padding:0 2px;font-size:11px;text-align:center;
  }
  .nav-item span{font-size:11px;line-height:1.2;white-space:normal;display:block}
  .nav-item.is-active::before{top:10px;bottom:10px;height:auto;transform:none}
  .nav-item::after{
    content:attr(data-label);
    position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%) translateX(-4px);
    background:#16324A;color:#fff;font-size:12px;padding:6px 10px;border-radius:8px;
    white-space:nowrap;opacity:0;pointer-events:none;
    transition:opacity .18s var(--ease),transform .18s var(--ease);
    z-index:95;
  }
  .nav-item:hover::after{opacity:1;transform:translateY(-50%) translateX(0)}
  .rail-divider{margin:8px 14px 12px}
  .rail-cta{margin:0 10px 12px;padding:10px 4px;font-size:12px}
  .rail-foot{display:none}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .page{padding:24px 24px 76px}
  .article-head{padding:28px 26px 22px}
  .article-head h1{font-size:30px}
  .article-body{padding:28px 24px;font-size:16.5px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .side-rail{transform:translateX(-100%);width:280px;z-index:90;box-shadow:none}
  .side-rail.is-open{transform:translateX(0);box-shadow:var(--sh-3)}
  .side-rail .logo-text{display:inline}
  .side-rail .nav-item{flex-direction:row;height:48px;padding:0 14px;font-size:15px;text-align:left;gap:12px}
  .side-rail .nav-item span{font-size:15px;white-space:nowrap}
  .side-rail .nav-item.is-active::before{top:50%;bottom:auto;height:22px;transform:translateY(-50%)}
  .side-rail .nav-item::after{display:none}
  .side-rail .rail-foot{display:block}
  .topbar{display:flex}
  .shell{margin-left:0;padding-top:56px}
  .page{padding:20px 16px 64px}
  .breadcrumb{font-size:12px;margin-bottom:16px}
  .breadcrumb .cur{max-width:180px}
  .article-head{padding:22px 18px 18px;border-radius:var(--r-card)}
  .article-head h1{font-size:24px;line-height:1.35;margin-top:12px}
  .meta-row{font-size:12px;gap:6px 12px;margin-top:16px;padding-top:14px}
  .article-layout{margin-top:20px;gap:24px}
  .article-body{padding:22px 18px;font-size:16px;line-height:1.85;border-radius:var(--r-card)}
  .article-body h2{font-size:19px;margin:32px 0 12px;padding-left:14px}
  .article-body h3{font-size:17px;margin:24px 0 8px}
  .article-body blockquote{padding:16px 16px}
  .article-foot{margin-top:32px}
  .foot-cards{grid-template-columns:1fr;gap:14px}
  .foot-card{padding:18px}
  .btn{height:44px;padding:0 18px;font-size:15px}
  .back-row .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding:40px 0 28px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px}
}
@media (max-width:480px){
  .article-head h1{font-size:22px}
  .article-body{padding:20px 16px;font-size:15.5px}
  .footer-grid{grid-template-columns:1fr;gap:22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --brand:#1F63A8;
  --brand-hover:#17518C;
  --brand-soft:#EAF2FA;
  --brand-line:#CFE0F0;
  --accent:#E0851F;
  --accent-soft:#FDF2E2;
  --accent-deep:#B26A0F;
  --teal:#2E9E93;
  --ink:#17242F;
  --ink-2:#4A5C6B;
  --ink-3:#7A8A98;
  --bg:#F4F7FA;
  --card:#FFFFFF;
  --alt:#EDF3F9;
  --line:#E2E9F0;
  --warn:#D9822B;
  --danger:#C8493F;
  --footer:#16324A;
  --r-card:14px;
  --r-big:20px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(23,36,47,.04),0 10px 24px -12px rgba(31,99,168,.18);
  --sh-card-hover:0 2px 4px rgba(23,36,47,.05),0 16px 32px -14px rgba(31,99,168,.28);
  --sidenav-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--brand);padding:10px 16px;z-index:200;border-radius:0 0 10px 0}
.skip-link:focus{left:0}

/* ---------- 外壳 ---------- */
.site-main{margin-left:var(--sidenav-w);min-height:100vh;display:flex;flex-direction:column}
.wrap,.container{width:100%;max-width:1120px;margin:0 auto;padding:0 32px}

/* ---------- 侧栏导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidenav-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 14px 20px;z-index:80;overflow-y:auto;
}
.nav-logo{
  min-height:72px;display:flex;align-items:center;gap:10px;
  padding:12px 14px 12px 16px;position:relative;border-bottom:1px solid var(--line);margin-bottom:16px;
}
.nav-logo::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:26px;background:var(--accent);border-radius:2px;
}
.nav-logo b{font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--ink)}
.nav-logo small{display:block;font-size:12px;color:var(--ink-3);font-weight:400;letter-spacing:.02em}
.side-nav-menu{display:grid;gap:6px}
.nav-item{
  display:flex;align-items:center;gap:12px;min-height:44px;padding:0 12px;
  border-radius:var(--r-btn);color:var(--ink-2);font-size:15px;position:relative;
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-item svg{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-item:hover{background:var(--bg);color:var(--ink)}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:var(--accent);border-radius:0 3px 3px 0;
}
.nav-sep{height:1px;background:var(--line);margin:18px 4px}
.nav-cta{
  display:flex;align-items:center;justify-content:center;width:100%;min-height:46px;
  border-radius:var(--r-btn);background:var(--brand);color:#fff;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
  box-shadow:0 10px 20px -14px rgba(31,99,168,.9);
}
.nav-cta:hover{background:var(--brand-hover);transform:translateY(-2px)}
.nav-cta:active{transform:translateY(0)}
.nav-foot{margin-top:auto;padding:18px 8px 0;font-size:12px;color:var(--ink-3);line-height:1.7}
.nav-foot span{display:block;color:var(--ink-2);font-weight:600;font-size:13px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:90;
  background:#fff;border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;
  transition:box-shadow .2s ease-out;
}
.topbar.is-scrolled{box-shadow:0 2px 12px rgba(23,36,47,.08)}
.topbar-logo{font-size:17px;font-weight:700;color:var(--ink);position:relative;padding-left:12px}
.topbar-logo::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;background:var(--accent);border-radius:2px}
.menu-toggle{
  width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.menu-toggle:hover{border-color:var(--brand-line);background:var(--bg)}
.menu-toggle svg{width:22px;height:22px;fill:none;stroke:var(--ink);stroke-width:1.5;stroke-linecap:round}
.backdrop{
  position:fixed;inset:0;background:rgba(23,36,47,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
}
.backdrop.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;bottom:0;left:0;width:280px;background:#fff;z-index:120;
  transform:translateX(-102%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;padding:14px 14px 20px;overflow-y:auto;
  box-shadow:0 20px 40px -20px rgba(23,36,47,.5);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:6px 4px 14px;border-bottom:1px solid var(--line);margin-bottom:14px}
.drawer-head b{font-size:18px;position:relative;padding-left:12px}
.drawer-head b::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;background:var(--accent);border-radius:2px}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:var(--ink-2);stroke-width:1.5;stroke-linecap:round}
.drawer .nav-item{min-height:48px}
.drawer .nav-sep{margin:16px 4px}
body.no-scroll{overflow:hidden}

/* ---------- 面包屑与页头 ---------- */
.page-head{padding:36px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3CCD4}
.breadcrumb [aria-current="page"]{color:var(--ink-3)}

.page-hero{position:relative;overflow:hidden;border-radius:var(--r-big);border:1px solid var(--line);background:#fff;box-shadow:var(--sh-card)}
.page-hero-bg{position:absolute;inset:0;background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat}
.page-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(96deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.9) 42%,rgba(234,242,250,.74) 100%)}
.page-hero-inner{position:relative;padding:52px 48px;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--accent-deep);background:var(--accent-soft);border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
.page-hero .lead{margin-top:16px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--brand-line);background:var(--brand-soft);box-shadow:var(--sh-card)}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure figcaption{font-size:13px;color:var(--ink-2);padding:12px 16px;background:#fff;border-top:1px solid var(--line)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 22px -14px rgba(31,99,168,.95)}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-2px);box-shadow:0 16px 26px -14px rgba(31,99,168,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-hover);transform:translateY(-2px)}
.btn-soft{background:var(--accent-soft);color:var(--accent-deep);border-color:#F2DFC2}
.btn-soft:hover{background:#FBEBd5;transform:translateY(-2px)}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85}
.section-head .mark{display:block;width:44px;height:4px;border-radius:2px;background:var(--accent);margin-bottom:18px}

/* ---------- 步骤时间轴 ---------- */
.timeline{list-style:none;display:grid;gap:0;margin-top:8px}
.step{display:grid;grid-template-columns:56px 1fr;gap:24px;padding-bottom:36px;position:relative}
.step:last-child{padding-bottom:0}
.step:not(:last-child)::before{
  content:"";position:absolute;left:27px;top:64px;height:calc(100% - 72px);
  width:1px;background:var(--line);
}
.step-num{
  width:56px;height:56px;border-radius:var(--r-card);background:#fff;
  border:1px solid var(--brand-line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-card);
}
.step-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out}
.step-body:hover{border-color:var(--brand-line);box-shadow:var(--sh-card-hover);transform:translateY(-2px)}
.step-body h3{font-size:20px;font-weight:600;line-height:1.4}
.step-body p{margin-top:10px;color:var(--ink-2);font-size:15.5px;line-height:1.85}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{display:inline-flex;align-items:center;border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;letter-spacing:.02em;background:#E7F5F3;color:#1E7A70}
.tag-blue{background:var(--brand-soft);color:var(--brand)}
.tag-amber{background:var(--accent-soft);color:var(--accent-deep)}

/* ---------- 对照卡 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--sh-card);transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out}
.compare-card:hover{border-color:var(--brand-line);box-shadow:var(--sh-card-hover);transform:translateY(-2px)}
.compare-card.is-accent{background:var(--brand-soft);border-color:var(--brand-line)}
.compare-card h3{font-size:20px;font-weight:600;display:flex;align-items:center;gap:10px}
.compare-card h3 .dot{width:10px;height:10px;border-radius:3px;background:var(--teal);flex:none}
.compare-card.is-accent h3 .dot{background:var(--accent)}
.compare-card > p{margin-top:12px;color:var(--ink-2);font-size:15px;line-height:1.8}
.check-list{list-style:none;margin-top:18px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);line-height:1.75}
.check-list li::before{content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:1px;background:var(--brand)}
.compare-note{margin-top:20px;padding-top:16px;border-top:1px dashed var(--brand-line);font-size:13px;color:var(--ink-3)}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-big);overflow:hidden;box-shadow:var(--sh-card)}
.stat{padding:30px 22px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:32px;line-height:1.2;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:8px;font-size:13px;color:var(--ink-3)}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.faq-item:hover{border-color:var(--brand-line)}
.faq-item.is-open{border-color:var(--brand-line);box-shadow:var(--sh-card)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;gap:12px;
  padding:14px 18px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
}
.q-mark{
  width:22px;height:22px;flex:none;border-radius:6px;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.faq-sign{margin-left:auto;width:18px;height:18px;position:relative;flex:none}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--ink-3);border-radius:2px;transition:transform .22s ease-out,opacity .22s ease-out}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0}
.faq-item.is-open .faq-sign::before{background:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a-inner{padding:0 18px 20px 52px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-a-inner a{color:var(--brand);text-decoration:underline}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:var(--r-big);
  padding:44px 40px;display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;
}
.cta-block h2{font-size:28px;line-height:1.35;font-weight:700}
.cta-block p{margin-top:14px;color:var(--ink-2);font-size:15.5px;line-height:1.85}
.cta-points{list-style:none;margin-top:20px;display:grid;gap:10px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-2)}
.cta-points li::before{content:"";position:absolute;left:0;top:.55em;width:12px;height:2px;background:var(--accent);border-radius:2px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-card{background:#fff;border:1px solid var(--brand-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-card)}
.cta-card h3{font-size:17px;font-weight:600}
.cta-card ul{list-style:none;display:grid;gap:10px;margin:16px 0 22px}
.cta-card li{font-size:14px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.cta-card li svg{width:16px;height:16px;flex:none;margin-top:4px;fill:none;stroke:var(--teal);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 页脚 ---------- */
.footer{background:var(--footer);color:#C9D6E2;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:32px;padding:64px 0 40px}
.footer-logo{display:block;font-size:19px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;color:#AFC2D3;max-width:30em}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col li{font-size:14px;line-height:1.7}
.footer-col a{color:#C9D6E2;transition:color .2s ease-out}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;font-size:13px;color:#93A6B8;
}

/* ---------- 响应式 ---------- */
@media (min-width:769px) and (max-width:1199px){
  :root{--sidenav-w:76px}
  .side-nav{padding:0 8px 16px;align-items:stretch}
  .nav-logo{padding:12px 0;justify-content:center;min-height:76px}
  .nav-logo::before{display:none}
  .nav-logo b{font-size:11px;text-align:center;line-height:1.25;word-break:break-all}
  .nav-item{flex-direction:column;gap:6px;min-height:0;padding:10px 4px;font-size:11px;text-align:center;line-height:1.25}
  .nav-item svg{width:22px;height:22px}
  .nav-item.is-active::before{top:6px;bottom:6px}
  .nav-cta{font-size:11px;padding:10px 4px;min-height:0;line-height:1.3;box-shadow:none}
  .nav-foot{font-size:11px;text-align:center;padding:14px 0 0}
  .nav-foot span{font-size:11px}
  .wrap,.container{padding:0 22px}
}
@media (max-width:1024px){
  .page-hero-inner{grid-template-columns:1fr;gap:28px;padding:40px 32px}
  .page-hero h1{font-size:34px}
  .cta-block{grid-template-columns:1fr;gap:26px;padding:34px 28px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .side-nav{display:none}
  .topbar{display:flex}
  .site-main{margin-left:0;padding-top:56px}
  .section{padding:60px 0}
  .section-alt{padding:60px 0}
  .wrap,.container{padding:0 18px}
  .page-head{padding:24px 0 0}
  .page-hero-inner{padding:30px 22px}
  .page-hero h1{font-size:28px}
  .page-hero .lead{font-size:16px}
  .hero-figure{display:none}
  .section-head h2{font-size:24px}
  .step{grid-template-columns:44px 1fr;gap:16px;padding-bottom:24px}
  .step:not(:last-child)::before{left:21px;top:52px;height:calc(100% - 58px)}
  .step-num{width:44px;height:44px;border-radius:12px;font-size:15px}
  .step-body{padding:18px 16px}
  .step-body h3{font-size:17px}
  .compare{grid-template-columns:1fr;gap:16px}
  .faq-q{font-size:15px;padding:12px 14px}
  .faq-a-inner{padding:0 14px 18px 14px}
  .cta-block{padding:26px 20px}
  .cta-block h2{font-size:23px}
  .footer{margin-top:60px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:44px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:480px){
  body{font-size:15px}
  .page-hero h1{font-size:25px}
  .section-head h2{font-size:22px}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:22px 18px}
  .stat:last-child{border-bottom:0}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .btn:hover,.step-body:hover,.compare-card:hover,.nav-cta:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --brand:#1F63A8;
  --brand-hover:#17518C;
  --brand-active:#14456F;
  --brand-soft:#EAF2FA;
  --brand-line:#CFE0F0;
  --accent:#E0851F;
  --accent-hover:#C9761A;
  --accent-soft:#FDF2E2;
  --accent-deep:#B26A0F;
  --teal:#2E9E93;
  --teal-soft:#E7F5F3;
  --teal-deep:#1F7F76;
  --text:#17242F;
  --text-2:#4A5C6B;
  --text-3:#7A8A98;
  --bg:#F4F7FA;
  --card:#FFFFFF;
  --alt:#EDF3F9;
  --line:#E2E9F0;
  --footer-bg:#16324A;
  --danger:#C8493F;
  --warn:#D9822B;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --shadow:0 1px 2px rgba(23,36,47,.04), 0 10px 24px -12px rgba(31,99,168,.18);
  --shadow-hover:0 1px 2px rgba(23,36,47,.05), 0 16px 32px -14px rgba(31,99,168,.28);
  --side:248px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-hover);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:#fff;color:var(--brand);padding:10px 18px;border-radius:0 0 10px 0;font-size:14px;}
.skip-link:focus{left:0;}

/* 容器 */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* 顶部移动条 */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  align-items:center;gap:14px;padding:0 16px;
  transition:box-shadow .22s ease-out;
}
.topbar.is-scrolled{box-shadow:0 2px 12px rgba(23,36,47,.08);}
.burger{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
  transition:background .2s ease-out,border-color .2s ease-out;
}
.burger:hover{background:var(--bg);border-color:var(--brand-line);}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;}
.topbar-logo{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.topbar-logo:hover{color:var(--brand);}

/* 侧边导航 */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);z-index:90;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;overflow-y:auto;
  transition:transform .24s ease-out;
}
.logo{
  height:72px;flex:0 0 72px;display:flex;align-items:center;gap:10px;
  padding:0 20px;border-bottom:1px solid var(--line);
}
.logo-mark{width:4px;height:24px;border-radius:2px;background:var(--accent);flex:0 0 4px;}
.logo-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.logo:hover .logo-text{color:var(--brand);}
.side-nav{display:flex;flex-direction:column;gap:6px;padding:18px 14px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:var(--r-s);
  font-size:15px;color:var(--text-2);
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-item svg{
  width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;
  stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;
}
.nav-item:hover{background:var(--bg);color:var(--text);}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand-hover);font-weight:600;}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--accent);
}
.side-divider{height:1px;background:var(--line);margin:6px 20px 14px;}
.side-foot{margin-top:auto;padding:0 14px 24px;display:flex;flex-direction:column;gap:12px;}
.btn-block{width:100%;}
.side-meta{font-size:12px;color:var(--text-3);line-height:1.6;padding:0 4px;}
.overlay{
  display:none;position:fixed;inset:0;z-index:85;background:rgba(23,36,47,.45);
  opacity:0;transition:opacity .22s ease-out;
}
.overlay.is-open{display:block;opacity:1;}

/* 主内容区 */
.page{margin-left:var(--side);}
body.no-scroll{overflow:hidden;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-s);
  border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px -12px rgba(31,99,168,.55);}
.btn-primary:active{background:var(--brand-active);transform:translateY(0);box-shadow:none;}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px -12px rgba(224,133,31,.55);}
.btn-accent:active{background:#B26A0F;transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-hover);border-color:var(--brand);}
.btn-ghost:active{background:#DCEAF7;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--brand-hover);border:1px solid var(--brand-line);
}
.tag--teal{background:var(--teal-soft);color:var(--teal-deep);border-color:#C8E7E3;}
.tag--accent{background:var(--accent-soft);color:var(--accent-deep);border-color:#F3DFBF;}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;}
.breadcrumb .sep{color:#B7C4CE;}
.breadcrumb .current{color:var(--text-3);}

/* 分类页首屏 */
.page-hero{
  position:relative;overflow:hidden;
  padding:60px 0 76px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(234,242,250,.91) 52%,rgba(234,242,250,.74) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.page-hero h1{
  margin-top:20px;font-size:42px;line-height:1.24;letter-spacing:-.015em;max-width:840px;
}
.page-hero .lead{
  margin-top:20px;max-width:720px;font-size:18px;line-height:1.8;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:0;margin-top:38px;
  border-top:1px solid var(--brand-line);padding-top:22px;max-width:840px;
}
.hero-fact{padding:0 28px;border-left:1px solid var(--brand-line);}
.hero-fact:first-child{padding-left:0;border-left:0;}
.hero-fact strong{
  display:block;font-size:22px;font-weight:700;color:var(--accent-deep);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.hero-fact span{display:block;font-size:13px;color:var(--text-3);margin-top:4px;}

/* 板块 */
.section{padding:88px 0;}
.section--alt{background:var(--alt);}
.section--tight{padding-top:0;}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{font-size:30px;letter-spacing:-.01em;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.06em;
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);}

/* 图文交替 */
.media-row{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;}
.media-row + .media-row{margin-top:80px;}
.media-row.is-reverse .media-text{order:2;}
.media-row.is-reverse .media-pic{order:1;}
.media-pic{
  border-radius:18px;overflow:hidden;background:var(--brand-soft);
  aspect-ratio:16/10;box-shadow:var(--shadow);
  transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.media-pic img{width:100%;height:100%;object-fit:cover;}
.media-row:hover .media-pic{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.num-block{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.media-text h2{margin-top:18px;font-size:26px;line-height:1.35;}
.media-text > p{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.85;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  position:relative;padding-left:26px;font-size:15px;line-height:1.75;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:4px;top:9px;width:8px;height:8px;
  background:var(--brand);border-radius:1px;
}
.check-list li strong{color:var(--text);font-weight:600;}

/* 数据条 */
.stats{
  background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:var(--r-l);
  padding:36px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;
}
.stat{padding:0 26px;border-left:1px solid rgba(31,99,168,.18);}
.stat:first-child{padding-left:0;border-left:0;}
.stat-num{
  display:block;font-size:32px;font-weight:700;color:var(--accent-deep);
  font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-.01em;
}
.stat-label{display:block;margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.6;}

/* 提示条 */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--r-m);padding:22px 24px;box-shadow:var(--shadow);
}
.notice svg{width:22px;height:22px;flex:0 0 22px;fill:none;stroke:var(--accent-deep);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;margin-top:2px;}
.notice h3{font-size:16px;font-weight:600;}
.notice p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--text-2);}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item.is-open{border-color:var(--brand-line);box-shadow:var(--shadow);}
.faq-h{margin:0;font-size:16px;font-weight:600;}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;min-height:56px;
  padding:10px 20px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);cursor:pointer;line-height:1.5;
  transition:background .2s ease-out;
}
.faq-q:hover{background:#FAFCFE;}
.q-mark{
  flex:0 0 22px;width:22px;height:22px;border-radius:6px;background:var(--brand-soft);
  color:var(--brand);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.faq-q-text{flex:1 1 auto;}
.faq-icon{position:relative;margin-left:auto;width:16px;height:16px;flex:0 0 16px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-3);border-radius:2px;
  transition:transform .22s ease-out,opacity .22s ease-out;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon::before{background:var(--brand);}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-a-inner{padding:0 24px 22px 56px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* CTA */
.cta-block{
  background:var(--brand-soft);border-radius:var(--r-l);padding:40px;
  display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;
}
.cta-block h2{font-size:28px;line-height:1.35;}
.cta-block .cta-desc{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8;}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:var(--text-2);}
.cta-points li::before{
  content:"";position:absolute;left:2px;top:8px;width:8px;height:8px;
  border-radius:2px;background:var(--accent);
}
.cta-actions{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--brand-line);border-radius:var(--r-m);padding:24px;box-shadow:var(--shadow);}
.cta-actions .btn{width:100%;}
.cta-note{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:4px;}

/* 页脚 */
.footer{background:var(--footer-bg);color:#C9D6E2;}
.footer .container{padding-top:64px;padding-bottom:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-logo{display:inline-block;font-size:20px;font-weight:700;color:#fff;letter-spacing:.01em;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB4C6;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:#9FB4C6;line-height:1.7;}
.footer-col a{color:#C9D6E2;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:48px;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:#8FA6B8;
}

/* 响应式：窄栏 */
@media (max-width:1199px) and (min-width:769px){
  :root{--side:84px;}
  .logo{height:80px;flex:0 0 80px;justify-content:center;padding:0;gap:8px;}
  .logo-text{writing-mode:vertical-rl;font-size:13px;letter-spacing:.1em;line-height:1;}
  .side-nav{padding:16px 10px;gap:8px;}
  .nav-item{
    flex-direction:column;height:64px;gap:5px;padding:6px 2px;justify-content:center;
    font-size:11px;text-align:center;
  }
  .nav-item svg{width:18px;height:18px;flex:0 0 18px;}
  .nav-item span{font-size:11px;line-height:1.2;}
  .nav-item.is-active::before{top:8px;bottom:8px;}
  .side-foot{padding:0 10px 20px;}
  .side-foot .btn{font-size:12px;padding:0 8px;min-height:40px;}
  .side-meta{font-size:10px;padding:0;}
  .page-hero h1{font-size:36px;}
}

/* 响应式：平板 */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .media-row{grid-template-columns:1fr;gap:28px;}
  .media-row.is-reverse .media-text{order:1;}
  .media-row.is-reverse .media-pic{order:2;}
  .media-row + .media-row{margin-top:64px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:26px 0;padding:30px;}
  .stat:nth-child(3){padding-left:0;border-left:0;}
  .cta-block{grid-template-columns:1fr;gap:28px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

/* 响应式：手机 */
@media (max-width:768px){
  .topbar{display:flex;}
  .sidebar{transform:translateX(-100%);width:280px;box-shadow:none;}
  .sidebar.is-open{transform:translateX(0);box-shadow:0 20px 60px rgba(23,36,47,.3);}
  .logo{height:72px;flex:0 0 72px;justify-content:flex-start;padding:0 20px;gap:10px;}
  .logo-text{writing-mode:horizontal-tb;font-size:18px;letter-spacing:.01em;}
  .side-nav{padding:16px 14px;gap:6px;}
  .nav-item{flex-direction:row;height:48px;gap:10px;padding:0 14px;font-size:15px;justify-content:flex-start;text-align:left;}
  .nav-item span{font-size:15px;}
  .side-foot{padding:0 14px 24px;}
  .side-foot .btn{font-size:15px;min-height:46px;}
  .side-meta{font-size:12px;padding:0 4px;}
  .page{margin-left:0;padding-top:56px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .page-hero{padding:36px 0 52px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lead{font-size:16px;margin-top:16px;}
  .hero-actions{margin-top:24px;}
  .hero-facts{margin-top:28px;padding-top:18px;gap:18px 0;}
  .hero-fact{padding:0 18px;}
  .hero-fact strong{font-size:19px;}
  .media-text h2{font-size:21px;}
  .media-text > p{font-size:15px;}
  .media-row + .media-row{margin-top:52px;}
  .stats{grid-template-columns:1fr;gap:20px;padding:26px 22px;}
  .stat{padding:0;border-left:0;border-top:1px solid rgba(31,99,168,.18);padding-top:20px;}
  .stat:first-child{border-top:0;padding-top:0;}
  .stat-num{font-size:26px;}
  .faq-q{font-size:15px;padding:12px 16px;gap:12px;}
  .faq-a-inner{padding:0 18px 18px 48px;font-size:14px;}
  .cta-block{padding:26px 22px;border-radius:16px;}
  .cta-block h2{font-size:22px;}
  .footer .container{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{margin-top:32px;}
}

/* 响应式：小屏 */
@media (max-width:480px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:26px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .hero-fact{width:50%;padding:0 0 0 16px;}
  .hero-fact:nth-child(odd){padding-left:0;border-left:0;}
  .cta-actions{padding:18px;}
  .cta-actions .btn{width:100%;}
  .btn{width:100%;}
  .footer-col h4{font-size:14px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .media-row:hover .media-pic{transform:none;}
}