/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#16443A;
  --c-primary-700:#0F332C;
  --c-primary-400:#3A7A69;
  --c-primary-100:#DCEAE4;
  --c-accent:#C25E36;
  --c-accent-soft:#F6E4D8;
  --c-sand:#D9C9A8;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#17211E;
  --c-ink-2:#4E5A55;
  --c-ink-3:#8B948F;
  --c-line:#E4DED2;
  --c-success:#2F7D5D;
  --c-warn:#B4732A;
  --c-danger:#A5433A;

  --r-card:16px;
  --r-card-sm:12px;
  --r-btn:10px;
  --r-badge:999px;
  --r-img:20px;

  --shadow-card:0 1px 2px rgba(20,69,60,.06), 0 8px 24px -12px rgba(20,69,60,.18);
  --shadow-card-hover:0 2px 4px rgba(20,69,60,.08), 0 18px 36px -16px rgba(20,69,60,.28);

  --pad-section:96px;
  --container:1320px;
  --textcol:1120px;
  --sidebar-w:264px;

  --f-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --f-num:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--f-sans);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
figure{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

h1,h2,h3{font-family:var(--f-serif);font-weight:600;line-height:1.3;letter-spacing:0;}
h1{font-size:48px;}
h2{font-size:30px;}
h3{font-size:20px;}
p{color:var(--c-ink-2);}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;}

/* ============ 布局骨架 ============ */
.app-shell{display:flex;min-height:100vh;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.content{flex:1 1 auto;min-width:0;}
.section{padding:var(--pad-section) 0;}
.section--tight{padding:64px 0;}
.section-head{margin-bottom:48px;max-width:760px;}
.section-head h2{margin-bottom:16px;}
.section-head p{font-size:17px;}
.section-topbar{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap;}
.section-topbar h2{margin-bottom:8px;}
.section-topbar p{font-size:16px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--c-accent);
  background:var(--c-accent-soft);
  border-radius:var(--r-badge);
  padding:6px 14px;margin-bottom:20px;
}

/* ============ 侧栏导航 ============ */
.sidebar{
  flex:0 0 var(--sidebar-w);
  width:var(--sidebar-w);
  background:var(--c-primary);
  color:#F2EFE8;
  position:sticky;top:0;
  height:100vh;
  display:flex;flex-direction:column;
  padding:28px 20px 22px;
  z-index:60;
}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:0 6px 22px;border-bottom:1px solid rgba(247,244,238,.14);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--c-accent);color:#FFF6EF;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--f-serif);font-weight:700;font-size:18px;
}
.brand-text strong{display:block;font-family:var(--f-serif);font-size:17px;font-weight:600;color:#FFFDF8;letter-spacing:.02em;}
.brand-text span{display:block;font-size:12px;color:rgba(247,244,238,.62);letter-spacing:.06em;margin-top:2px;}
.sidebar-nav{margin-top:22px;flex:1 1 auto;overflow-y:auto;}
.sidebar-nav-title{font-size:12px;letter-spacing:.14em;color:rgba(247,244,238,.5);padding:0 10px 10px;}
.sidebar-nav a{
  display:flex;align-items:center;gap:12px;
  height:48px;padding:0 12px;border-radius:12px;
  font-size:14px;color:rgba(247,244,238,.82);
  position:relative;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.sidebar-nav a i{width:18px;text-align:center;font-size:14px;opacity:.85;}
.sidebar-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:2px;background:var(--c-accent);
  transition:transform .18s ease;
}
.sidebar-nav a:hover{background:rgba(247,244,238,.08);color:#FFFDF8;transform:translateX(4px);}
.sidebar-nav a:hover::before{transform:translateY(-50%) scaleY(1);}
.sidebar-nav a.active{background:rgba(247,244,238,.12);color:#FFFDF8;}
.sidebar-nav a.active::before{transform:translateY(-50%) scaleY(1);}
.sidebar-nav a.active::after{
  content:"";position:absolute;right:14px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.sidebar-foot{margin-top:18px;border-top:1px solid rgba(247,244,238,.14);padding-top:18px;}
.sidebar-foot .btn{width:100%;justify-content:center;}
.sidebar-contact{font-size:12px;line-height:1.8;color:rgba(247,244,238,.58);margin-top:14px;}
.sidebar-contact span{display:block;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;z-index:80;
  background:var(--c-primary);color:#F7F4EE;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  box-shadow:0 1px 0 rgba(0,0,0,.12);
}
.mobile-topbar .brand-text strong{font-size:15px;}
.mobile-topbar .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:15px;border-radius:10px;}
.topbar-actions{display:flex;align-items:center;gap:10px;}
.topbar-actions .btn{height:38px;padding:0 14px;font-size:13px;}
.menu-btn{width:40px;height:40px;border-radius:10px;color:#F7F4EE;font-size:17px;display:flex;align-items:center;justify-content:center;background:rgba(247,244,238,.10);}
.drawer{
  position:fixed;inset:0 auto 0 0;width:280px;max-width:84vw;z-index:100;
  background:var(--c-primary);color:#F7F4EE;
  padding:24px 20px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(-102%);transition:transform .26s ease;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-close{align-self:flex-end;width:38px;height:38px;border-radius:10px;background:rgba(247,244,238,.10);color:#F7F4EE;}
.drawer nav{margin-top:14px;display:flex;flex-direction:column;gap:4px;}
.drawer nav a{display:flex;align-items:center;gap:12px;height:48px;padding:0 12px;border-radius:12px;font-size:15px;color:rgba(247,244,238,.86);}
.drawer nav a i{width:18px;text-align:center;}
.drawer nav a.active{background:rgba(247,244,238,.14);color:#FFFDF8;}
.drawer .btn{margin-top:18px;justify-content:center;}
.drawer-mask{position:fixed;inset:0;background:rgba(15,51,44,.5);z-index:90;opacity:0;pointer-events:none;transition:opacity .26s ease;}
.drawer-mask.open{opacity:1;pointer-events:auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;
  transition:background .16s ease,color .16s ease,transform .16s ease,box-shadow .16s ease,border-color .16s ease;
  white-space:nowrap;
}
.btn i{font-size:13px;}
.btn-primary{background:var(--c-primary);color:#FBF9F4;box-shadow:0 1px 2px rgba(20,69,60,.14),0 10px 22px -14px rgba(20,69,60,.5);}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:0 2px 4px rgba(20,69,60,.16),0 16px 30px -14px rgba(20,69,60,.55);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-100);}
.btn-ghost:active{transform:translateY(1px);}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--c-primary);font-size:14px;font-weight:500;}
.btn-link i{transition:transform .16s ease;}
.btn-link:hover i{transform:translateX(3px);}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.04em;
  background:var(--c-primary-100);color:var(--c-primary);
}
.badge--accent{background:var(--c-accent-soft);color:var(--c-accent);}
.badge--line{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-badge);border:1px solid var(--c-line);
  background:var(--c-surface);font-size:13px;color:var(--c-ink-2);
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:var(--c-bg);}
.hero::before{
  content:"";position:absolute;top:-140px;left:-120px;width:520px;height:520px;
  border:1px solid var(--c-sand);border-radius:50%;opacity:.06;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--c-line) 1px,transparent 1px),linear-gradient(90deg,var(--c-line) 1px,transparent 1px);
  background-size:96px 96px;opacity:.05;
  mask-image:linear-gradient(180deg,transparent,#000 60%,transparent);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;}
.hero-copy{max-width:640px;}
.hero h1{font-size:48px;margin-bottom:24px;color:var(--c-ink);}
.hero-sub{font-size:18px;line-height:1.9;color:var(--c-ink-2);max-width:560px;margin-bottom:32px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px;}
.trust-badges{display:flex;gap:12px;flex-wrap:wrap;}
.trust-badges li{
  display:inline-flex;align-items:center;gap:8px;
  height:36px;padding:0 16px;border-radius:var(--r-badge);
  border:1px solid var(--c-line);background:var(--c-surface);
  font-size:13px;color:var(--c-ink-2);
}
.trust-badges li i{color:var(--c-primary-400);font-size:12px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--c-line);
  box-shadow:var(--shadow-card);
}
.hero-figure::after{
  content:"";position:absolute;right:-16px;bottom:-16px;width:120px;height:120px;
  border:1px solid var(--c-accent);border-radius:20px;opacity:.22;z-index:-1;
}

/* ============ 指标看板 ============ */
.metrics{background:var(--c-surface-2);}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(160px,auto);gap:24px;}
.metric{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);
  transition:transform .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
}
.metric:hover{transform:translateY(-2px);border-color:var(--c-primary-400);box-shadow:var(--shadow-card-hover);}
.metric--lead{grid-column:span 2;grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;background:var(--c-primary);border-color:var(--c-primary);}
.metric--lead .metric-value{color:#FFFDF8;}
.metric--lead .metric-label{color:rgba(247,244,238,.68);}
.metric--lead .metric-note{color:rgba(247,244,238,.8);}
.metric-value{font-family:var(--f-num);font-variant-numeric:tabular-nums;font-size:48px;font-weight:600;line-height:1.1;color:var(--c-primary);letter-spacing:-.01em;}
.metric-value small{font-size:16px;font-weight:500;margin-left:6px;color:inherit;opacity:.72;}
.metric-label{font-size:16px;color:var(--c-ink);margin-top:12px;font-weight:500;}
.metric-note{font-size:13px;color:var(--c-ink-3);margin-top:8px;}
.metric-trend{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-family:var(--f-num);margin-top:10px;}
.metric-trend.up{color:var(--c-success);}
.metric-trend.warn{color:var(--c-warn);}
.metric-bars{display:flex;gap:6px;margin-top:18px;}
.metric-bars span{flex:1;height:6px;border-radius:999px;background:rgba(247,244,238,.22);}
.metric-bars span.on{background:var(--c-accent);}

/* ============ 服务矩阵 ============ */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.service{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:12px;
  transition:transform .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
}
.service:hover{transform:translateY(-2px);border-color:var(--c-primary-400);box-shadow:var(--shadow-card-hover);}
.service--feature{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden;}
.service--feature .service-media{position:relative;overflow:hidden;flex:1 1 auto;min-height:260px;}
.service--feature .service-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.service--feature:hover .service-media img{transform:scale(1.03);}
.service--feature .service-body{padding:26px 28px 30px;}
.service-num{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;
  background:var(--c-primary-100);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--f-num);font-size:14px;font-weight:600;
}
.service h3{font-size:20px;color:var(--c-ink);}
.service p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}
.service .btn-link{margin-top:auto;}
.service-icon{font-size:18px;color:var(--c-primary);}

/* ============ 最新信息 CMS 区 ============ */
.news{background:var(--c-surface-2);}
.news-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;align-items:start;}
.news-feature{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
}
.news-feature:hover{transform:translateY(-2px);border-color:var(--c-primary-400);box-shadow:var(--shadow-card-hover);}
.news-feature-media{display:block;overflow:hidden;aspect-ratio:16/9;background:var(--c-surface-2);}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-feature:hover .news-feature-media img{transform:scale(1.03);}
.news-feature-body{padding:26px 28px 30px;}
.news-feature-body h3{font-size:24px;margin:14px 0 12px;}
.news-feature-body h3 a:hover{color:var(--c-primary-400);}
.news-feature-body p{font-size:15px;line-height:1.85;}
.news-meta{display:flex;align-items:center;gap:14px;margin-top:18px;font-size:13px;color:var(--c-ink-3);font-family:var(--f-num);}
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{
  display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card-sm);
  padding:16px;box-shadow:var(--shadow-card);
  transition:transform .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
}
.news-item:hover{transform:translateY(-2px);border-color:var(--c-primary-400);box-shadow:var(--shadow-card-hover);}
.news-item-media{display:block;overflow:hidden;border-radius:10px;aspect-ratio:5/3;background:var(--c-surface-2);}
.news-item-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-item:hover .news-item-media img{transform:scale(1.03);}
.news-item h3{font-size:18px;margin-bottom:8px;}
.news-item h3 a:hover{color:var(--c-primary-400);}
.news-item p{font-size:14px;line-height:1.8;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .news-meta{margin-top:10px;font-size:12px;}
.news-item-top{display:flex;align-items:center;gap:12px;margin-bottom:10px;flex-wrap:wrap;}
.empty-state{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state i{font-size:26px;color:var(--c-primary-400);}
.empty-state p{font-size:15px;color:var(--c-ink-2);}
.skeleton{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card-sm);padding:20px;display:flex;flex-direction:column;gap:12px;}
.skeleton span{display:block;height:12px;border-radius:999px;background:linear-gradient(90deg,var(--c-surface-2),#F7F4EE,var(--c-surface-2));}
.skeleton span:nth-child(1){width:60%;}
.skeleton span:nth-child(2){width:100%;}
.skeleton span:nth-child(3){width:78%;}

/* ============ 结果对比 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;position:relative;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-surface);}
.compare-col{padding:40px 36px;}
.compare-col--before{background:var(--c-surface-2);}
.compare-col--after{background:#EAF3EE;}
.compare-col h3{font-size:20px;margin-bottom:8px;}
.compare-col .compare-cap{font-size:13px;color:var(--c-ink-3);margin-bottom:28px;}
.compare-divider{position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--c-line);}
.compare-divider::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(45deg);
  width:12px;height:12px;background:var(--c-surface);border:1px solid var(--c-line);
}
.compare-row{margin-bottom:24px;}
.compare-row:last-child{margin-bottom:0;}
.compare-row-head{display:flex;justify-content:space-between;align-items:baseline;font-size:14px;margin-bottom:10px;}
.compare-row-head strong{font-family:var(--f-num);font-size:18px;font-weight:600;color:var(--c-primary);}
.compare-bar{height:8px;border-radius:999px;background:rgba(23,33,30,.08);overflow:hidden;}
.compare-bar i{display:block;height:100%;border-radius:999px;background:var(--c-ink-3);}
.compare-col--after .compare-bar i{background:var(--c-primary-400);}
.compare-col--after .compare-row-head strong{color:var(--c-accent);}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-card-sm);background:var(--c-surface);margin-bottom:14px;overflow:hidden;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:500;color:var(--c-ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  flex:0 0 22px;width:22px;height:22px;position:relative;transition:transform .24s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--c-accent);border-radius:2px;
}
.faq-item summary .plus::before{top:10px;left:0;width:22px;height:2px;}
.faq-item summary .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item[open] summary .plus{transform:rotate(240deg);}
.faq-item .faq-body{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}
.faq-item[open] summary{color:var(--c-primary);}

/* ============ 转化表单 ============ */
.cta-band{background:var(--c-primary);color:#F7F4EE;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-160px;top:-160px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(247,244,238,.14);pointer-events:none;
}
.cta-band .section-head h2,.cta-band .section-head p{color:#F7F4EE;}
.cta-band .section-head p{color:rgba(247,244,238,.76);}
.form-card{
  background:var(--c-surface);border-radius:var(--r-card);padding:36px;
  box-shadow:0 24px 60px -30px rgba(0,0,0,.5);max-width:820px;margin:0 auto;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--c-ink-2);display:inline-flex;align-items:center;gap:6px;}
.field label .req{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;}
.field input,.field select,.field textarea{
  height:46px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);padding:0 14px;font-size:15px;
  transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(58,122,105,.18);
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3);}
.field.error input,.field.error select,.field.error textarea{border-color:var(--c-danger);}
.field .err-msg{font-size:12px;color:var(--c-danger);display:none;}
.field.error .err-msg{display:block;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-ink-2);grid-column:1 / -1;}
.check-line input{width:18px;height:18px;margin-top:5px;accent-color:var(--c-primary);}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:24px;flex-wrap:wrap;}
.privacy-note{font-size:12px;color:var(--c-ink-3);max-width:420px;line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-700);color:rgba(247,244,238,.78);padding:72px 0 0;}
.footer-top{border-top:1px solid rgba(247,244,238,.16);padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);}
.footer-brand strong{font-family:var(--f-serif);font-size:17px;color:#FFFDF8;font-weight:600;}
.footer-col h4{font-size:14px;color:#FFFDF8;font-family:var(--f-sans);font-weight:600;letter-spacing:.06em;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col li{font-size:14px;color:rgba(247,244,238,.72);}
.footer-col a:hover{color:#FFFDF8;}
.footer-about p{font-size:14px;line-height:1.9;color:rgba(247,244,238,.7);max-width:320px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(247,244,238,.16);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,238,.6);
}
.footer-bottom a:hover{color:#FFFDF8;}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  :root{--sidebar-w:240px;}
  .hero h1{font-size:48px;}
}
@media (max-width:1199px){
  :root{--sidebar-w:220px;--pad-section:80px;}
  .container{padding:0 24px;}
  .hero-inner{gap:44px;}
  .hero h1{font-size:38px;}
  .hero-sub{font-size:17px;}
  .metric-value{font-size:38px;}
  .metric-grid{grid-template-columns:repeat(3,1fr);}
  .metric--lead{grid-column:span 3;grid-row:auto;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .news-layout{grid-template-columns:1fr;}
  .news-item{grid-template-columns:160px 1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  :root{--sidebar-w:84px;--pad-section:72px;}
  .sidebar{padding:22px 12px;align-items:center;}
  .brand-text{display:none;}
  .sidebar-brand{justify-content:center;padding-bottom:18px;}
  .sidebar-nav-title{display:none;}
  .sidebar-nav a{justify-content:center;padding:0;gap:0;}
  .sidebar-nav a span{display:none;}
  .sidebar-nav a.active::after{right:8px;}
  .sidebar-contact{display:none;}
  .sidebar-foot .btn{padding:0;width:46px;justify-content:center;}
  .sidebar-foot .btn span{display:none;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-figure img{aspect-ratio:16/9;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .metric--lead{grid-column:span 2;}
  .service--feature{grid-column:span 2;grid-row:auto;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-divider{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .form-grid{grid-template-columns:1fr;}
}
@media (max-width:767px){
  :root{--pad-section:56px;}
  body{font-size:16px;}
  .sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .content{padding-top:60px;}
  .container{padding:0 16px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .hero{padding:40px 0 56px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
  .metric{padding:18px;}
  .metric--lead{grid-column:span 2;padding:24px;}
  .metric-value{font-size:30px;}
  .metric-value small{font-size:13px;}
  .metric-label{font-size:14px;}
  .service-grid{grid-template-columns:1fr;}
  .service--feature{grid-column:span 1;}
  .news-item{grid-template-columns:1fr;}
  .news-item-media{aspect-ratio:16/9;}
  .compare-col{padding:28px 20px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-item .faq-body{padding:0 18px 18px;}
  .form-card{padding:22px;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .trust-badges li{font-size:12px;padding:0 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --c-primary:#16443A;
  --c-primary-700:#0F332C;
  --c-primary-400:#3A7A69;
  --c-primary-100:#DCEAE4;
  --c-accent:#C25E36;
  --c-accent-soft:#F6E4D8;
  --c-sand:#D9C9A8;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#17211E;
  --c-ink-2:#4E5A55;
  --c-ink-3:#8B948F;
  --c-line:#E4DED2;
  --c-success:#2F7D5D;
  --c-warn:#B4732A;
  --c-danger:#A5433A;
  --shadow-card:0 1px 2px rgba(20,69,60,.06), 0 8px 24px -12px rgba(20,69,60,.18);
  --shadow-hover:0 2px 4px rgba(20,69,60,.08), 0 16px 32px -16px rgba(20,69,60,.26);
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-lg:20px;
  --r-pill:999px;
  --sidebar-w:264px;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;line-height:1.3;letter-spacing:0;}
:focus-visible{outline:2px solid var(--c-primary-400);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
::selection{background:var(--c-primary-100);color:var(--c-primary-700);}

/* ============ 布局骨架 ============ */
.layout{display:flex;min-height:100vh;}
.content{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column;min-height:100vh;}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 24px;}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--sidebar-w);
  background:var(--c-primary);
  color:#F7F4EE;
  display:flex;
  flex-direction:column;
  padding:26px 16px 20px;
  z-index:80;
  overflow-y:auto;
  border-right:1px solid rgba(247,244,238,.08);
}
.sidebar::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:120px;
  width:180px;
  height:180px;
  border:1px solid rgba(217,201,168,.16);
  border-radius:50% 50% 0 0;
  pointer-events:none;
}
.sidebar-head{padding:0 4px 20px;border-bottom:1px solid rgba(247,244,238,.14);}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  flex:0 0 auto;
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--c-accent);
  color:#FFF8F2;
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-text strong{font-family:var(--font-serif);font-size:16px;font-weight:600;color:#F7F4EE;line-height:1.3;}
.brand-text small{font-size:12px;color:rgba(247,244,238,.62);line-height:1.6;}
.sidebar-nav{margin-top:22px;display:flex;flex-direction:column;gap:4px;}
.sidebar-nav-title{font-size:12px;letter-spacing:.18em;color:rgba(247,244,238,.45);padding:0 12px 8px;}
.sidebar-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:48px;
  padding:0 12px;
  border-radius:var(--r-btn);
  font-size:14px;
  color:rgba(247,244,238,.8);
  transition:background .16s ease-out,color .16s ease-out,transform .16s ease-out;
}
.sidebar-nav a i{width:18px;text-align:center;font-size:15px;color:rgba(247,244,238,.55);transition:color .16s ease-out;}
.sidebar-nav a::before{
  content:"";
  position:absolute;left:-16px;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--c-accent);
  transition:transform .16s ease-out;
}
.sidebar-nav a:hover{background:rgba(247,244,238,.08);color:#F7F4EE;transform:translateX(4px);}
.sidebar-nav a:hover i{color:var(--c-accent-soft);}
.sidebar-nav a:hover::before{transform:translateY(-50%) scaleY(1);}
.sidebar-nav a.active{background:rgba(247,244,238,.12);color:#F7F4EE;}
.sidebar-nav a.active i{color:#F7F4EE;}
.sidebar-nav a.active::after{
  content:"";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.sidebar-foot{margin-top:auto;padding-top:22px;border-top:1px solid rgba(247,244,238,.14);}
.sidebar-foot p{font-size:12px;color:rgba(247,244,238,.55);margin-top:12px;line-height:1.7;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.btn-primary{background:var(--c-primary);color:#F7F4EE;box-shadow:var(--shadow-card);}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-100);}
.btn-light{background:#F7F4EE;color:var(--c-primary);}
.btn-light:hover{background:#FFFFFF;transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(247,244,238,.5);color:#F7F4EE;}
.btn-outline-light:hover{background:rgba(247,244,238,.12);border-color:#F7F4EE;}
.btn-block{width:100%;}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;z-index:90;
  background:var(--c-primary);
  color:#F7F4EE;
  align-items:center;gap:12px;
  padding:0 14px;
  border-bottom:1px solid rgba(247,244,238,.14);
}
.hamburger{
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid rgba(247,244,238,.28);background:transparent;color:#F7F4EE;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.hamburger:hover{background:rgba(247,244,238,.12);}
.topbar-brand{display:flex;align-items:center;gap:8px;font-family:var(--font-serif);font-size:15px;font-weight:600;flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-brand .brand-mark{width:30px;height:30px;font-size:16px;border-radius:9px;}
.nav-mask{
  display:none;position:fixed;inset:0;background:rgba(15,51,44,.45);z-index:75;
  opacity:0;transition:opacity .2s ease-out;
}
.nav-mask.show{display:block;opacity:1;}

/* ============ 页面横幅 ============ */
.page-banner{
  position:relative;
  background-color:var(--c-primary-700);
  background-size:cover;
  background-position:center;
  color:#F7F4EE;
  padding:56px 0 44px;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,51,44,.95) 0%,rgba(15,51,44,.86) 48%,rgba(15,51,44,.66) 100%);
}
.page-banner::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:260px;height:260px;
  border:1px solid rgba(217,201,168,.28);border-radius:50% 50% 0 0;pointer-events:none;
}
.banner-inner{position:relative;z-index:2;max-width:1120px;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(247,244,238,.7);margin-bottom:18px;}
.breadcrumb a{color:rgba(247,244,238,.82);transition:color .16s ease-out;}
.breadcrumb a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb span.sep{color:rgba(247,244,238,.4);}
.breadcrumb .crumb-current{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#F7F4EE;}
.banner-inner h1{
  font-size:38px;
  color:#F7F4EE;
  max-width:900px;
  margin:0 0 20px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:rgba(247,244,238,.76);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item i{color:var(--c-accent-soft);}

/* ============ 文章主体 ============ */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.article-section{padding:48px 0 72px;}
.article-shell{width:100%;max-width:1120px;margin:0 auto;padding:0 24px;}
.article-card{
  max-width:900px;
  margin:0 auto;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:48px 56px 40px;
}
.article-lead{
  font-size:17px;
  line-height:1.95;
  color:var(--c-ink-2);
  padding-left:16px;
  border-left:3px solid var(--c-accent);
  margin-bottom:34px;
}
.article-body{font-size:17px;line-height:1.95;color:var(--c-ink-2);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:24px;
  color:var(--c-ink);
  margin:2.2em 0 .9em;
  padding-left:14px;
  border-left:3px solid var(--c-accent);
}
.article-body h3{font-size:20px;color:var(--c-ink);margin:1.8em 0 .7em;}
.article-body h4{font-size:18px;color:var(--c-ink);margin:1.6em 0 .6em;}
.article-body strong{color:var(--c-ink);font-weight:600;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-accent);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body ul li{list-style:disc;margin:.45em 0;}
.article-body ol li{list-style:decimal;margin:.45em 0;}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  background:var(--c-surface-2);
  border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;height:auto;border-radius:12px;
  margin:1.8em auto;
  border:1px solid var(--c-line);
}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;line-height:1.7;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;}
.article-body thead th{background:var(--c-surface-2);color:var(--c-ink);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAF8F4;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}

/* 空态 */
.empty-state{text-align:center;padding:34px 0 26px;}
.empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:var(--r-card);
  display:flex;align-items:center;justify-content:center;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  color:var(--c-primary-400);font-size:26px;
}
.empty-state h2{font-size:24px;color:var(--c-ink);margin-bottom:12px;}
.empty-state p{font-size:16px;color:var(--c-ink-2);max-width:560px;margin:0 auto 24px;line-height:1.9;}

/* 标签 */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line);
}
.article-tags .tag-label{font-size:13px;color:var(--c-ink-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-surface-2);font-size:13px;color:var(--c-ink-2);
  transition:border-color .16s ease-out,color .16s ease-out,background .16s ease-out;
}
.tag:hover{border-color:var(--c-primary-400);color:var(--c-primary);background:#FFFFFF;}

/* 上/下一篇 */
.article-pager{
  max-width:900px;margin:24px auto 0;
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.pager-card{
  display:flex;flex-direction:column;gap:6px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:20px 22px;box-shadow:var(--shadow-card);
  transition:border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.pager-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.pager-card .pager-dir{font-size:12px;color:var(--c-ink-3);letter-spacing:.06em;}
.pager-card strong{font-family:var(--font-serif);font-size:16px;color:var(--c-ink);line-height:1.5;font-weight:600;}
.pager-card .pager-desc{font-size:13px;color:var(--c-ink-3);line-height:1.7;}

/* 相关阅读 */
.relate-section{padding:24px 0 72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:30px;color:var(--c-ink);}
.section-head p{font-size:14px;color:var(--c-ink-3);margin-top:8px;line-height:1.8;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-primary);white-space:nowrap;transition:gap .16s ease-out,color .16s ease-out;}
.link-more:hover{gap:11px;color:var(--c-accent);}
.relate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.relate-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.relate-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.relate-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2);}
.relate-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .16s ease-out;}
.relate-card:hover .relate-thumb img{transform:scale(1.03);}
.relate-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.relate-body h3{font-size:18px;color:var(--c-ink);line-height:1.5;}
.relate-body p{font-size:14px;color:var(--c-ink-2);line-height:1.8;}
.relate-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-ink-3);}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;
  background:var(--c-primary-100);color:var(--c-primary-700);
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}

/* 返回入口 */
.back-section{padding:0 0 96px;}
.back-card{
  max-width:900px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--c-primary);color:#F7F4EE;
  border-radius:var(--r-card);
  padding:32px 36px;
  box-shadow:var(--shadow-card);
}
.back-card h2{font-size:24px;color:#F7F4EE;}
.back-card p{font-size:14px;color:rgba(247,244,238,.72);margin-top:8px;line-height:1.8;}
.back-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-700);color:#F7F4EE;margin-top:auto;}
.footer-top{padding:72px 0 0;border-top:1px solid rgba(247,244,238,.14);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;font-size:18px;}
.footer-brand strong{font-family:var(--font-serif);font-size:17px;color:#F7F4EE;font-weight:600;}
.footer-about p{font-size:13px;line-height:1.9;color:rgba(247,244,238,.66);max-width:340px;}
.footer-col h4{font-size:14px;color:#F7F4EE;margin-bottom:16px;font-weight:600;}
.footer-col ul li{font-size:13px;color:rgba(247,244,238,.66);line-height:2.1;}
.footer-col ul li a{color:rgba(247,244,238,.72);transition:color .16s ease-out;}
.footer-col ul li a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(247,244,238,.14);
  font-size:12px;color:rgba(247,244,238,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  :root{--sidebar-w:240px;}
}
@media (max-width:1199px){
  :root{--sidebar-w:220px;}
  .container{padding:0 20px;}
  .article-card{padding:40px 40px 34px;}
}
@media (max-width:1023px){
  :root{--sidebar-w:84px;}
  .sidebar{padding:20px 10px;align-items:center;}
  .sidebar-head{border-bottom:none;padding-bottom:8px;width:100%;}
  .brand{justify-content:center;}
  .brand-text{display:none;}
  .sidebar-nav-title{display:none;}
  .sidebar-nav{width:100%;}
  .sidebar-nav a{justify-content:center;padding:0;height:46px;}
  .sidebar-nav a span{display:none;}
  .sidebar-nav a::before{left:-10px;}
  .sidebar-nav a.active::after{right:8px;top:12px;transform:none;}
  .sidebar-foot{width:100%;}
  .sidebar-foot .btn{padding:0;font-size:0;}
  .sidebar-foot .btn i{font-size:16px;}
  .sidebar-foot p{display:none;}
  .section{padding:72px 0;}
  .relate-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .topbar{display:flex;}
  .sidebar{
    width:280px;
    padding:24px 18px 20px;
    align-items:flex-start;
    transform:translateX(-100%);
    transition:transform .24s ease-out;
    box-shadow:var(--shadow-hover);
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar .brand-text{display:flex;}
  .sidebar .sidebar-nav-title{display:block;}
  .sidebar .sidebar-nav{width:auto;}
  .sidebar .sidebar-nav a{justify-content:flex-start;padding:0 12px;height:48px;}
  .sidebar .sidebar-nav a span{display:inline;}
  .sidebar .sidebar-nav a::before{left:-18px;}
  .sidebar .sidebar-nav a.active::after{right:14px;top:50%;transform:translateY(-50%);}
  .sidebar-foot{width:auto;}
  .sidebar-foot .btn{padding:0 24px;font-size:15px;}
  .sidebar-foot .btn i{font-size:15px;}
  .sidebar-foot p{display:block;}
  .content{margin-left:0;padding-top:60px;}
  .container{padding:0 16px;}
  .page-banner{padding:32px 0 30px;}
  .banner-inner h1{font-size:24px;margin-bottom:16px;}
  .breadcrumb .crumb-current{max-width:180px;}
  .article-section{padding:28px 0 40px;}
  .article-shell{padding:0 16px;}
  .article-card{padding:26px 20px 24px;border-radius:var(--r-sm);}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:20px;margin-top:1.9em;}
  .article-body h3{font-size:18px;}
  .article-pager{grid-template-columns:1fr;margin-top:18px;}
  .relate-section{padding:8px 0 48px;}
  .relate-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:22px;}
  .section-head h2{font-size:24px;}
  .back-section{padding:0 0 56px;}
  .back-card{padding:24px 20px;flex-direction:column;align-items:flex-start;}
  .back-card h2{font-size:20px;}
  .back-actions{width:100%;}
  .back-actions .btn{flex:1 1 100%;}
  .footer-top{padding:46px 0 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section{padding:56px 0;}
}
@media (max-width:520px){
  .banner-inner h1{font-size:22px;}
  .article-meta{gap:8px 14px;font-size:12px;}
  .tag{height:28px;font-size:12px;padding:0 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --c-primary:#16443A;
  --c-primary-700:#0F332C;
  --c-primary-400:#3A7A69;
  --c-primary-100:#DCEAE4;
  --c-accent:#C25E36;
  --c-accent-soft:#F6E4D8;
  --c-sand:#D9C9A8;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#17211E;
  --c-ink-2:#4E5A55;
  --c-ink-3:#8B948F;
  --c-line:#E4DED2;
  --c-success:#2F7D5D;
  --c-warn:#B4732A;
  --c-danger:#A5433A;
  --r-lg:20px;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(20,69,60,.06), 0 8px 24px -12px rgba(20,69,60,.18);
  --sh-hover:0 2px 4px rgba(20,69,60,.08), 0 18px 38px -18px rgba(20,69,60,.30);
  --sidebar-w:264px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","SF Mono",ui-monospace,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;line-height:1.3;margin:0;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#F7F4EE;padding:10px 16px;border-radius:var(--r-btn);z-index:200}
.skip-link:focus{left:16px;top:16px}

/* ============ 布局骨架 ============ */
.app{min-height:100vh}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--c-primary);
  color:#F7F4EE;
  display:flex;
  flex-direction:column;
  padding:26px 18px 22px;
  overflow-y:auto;
  z-index:80;
  transition:transform 220ms ease-out;
}
.sidebar-head{padding:0 6px 20px;border-bottom:1px solid rgba(247,244,238,.14)}
.sidebar-brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  flex:0 0 auto;
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:var(--r-sm);
  background:var(--c-accent);
  color:#FFF7F0;
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
}
.brand-text{display:flex;flex-direction:column;line-height:1.45;min-width:0}
.brand-text strong{font-family:var(--font-serif);font-size:14px;font-weight:700;color:#FBF9F4}
.brand-text small{font-size:12px;color:rgba(247,244,238,.62);white-space:nowrap}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;margin:20px 0 0;flex:1 1 auto}
.sidebar-nav-title{
  font-size:12px;
  letter-spacing:.16em;
  color:rgba(247,244,238,.5);
  padding:0 12px 8px;
}
.sidebar-nav a{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:48px;
  padding:0 12px;
  border-radius:var(--r-btn);
  font-size:14px;
  color:rgba(247,244,238,.78);
  transition:background 160ms ease-out,color 160ms ease-out,transform 160ms ease-out;
}
.sidebar-nav a i{width:18px;font-size:14px;text-align:center;color:rgba(247,244,238,.6);transition:color 160ms ease-out}
.sidebar-nav a span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-nav a::before{
  content:"";
  position:absolute;left:0;top:50%;
  width:3px;height:0;
  background:var(--c-accent);
  border-radius:0 3px 3px 0;
  transform:translateY(-50%);
  transition:height 160ms ease-out;
}
.sidebar-nav a:hover{background:rgba(247,244,238,.08);color:#FBF9F4;transform:translateX(4px)}
.sidebar-nav a:hover i{color:#FBF9F4}
.sidebar-nav a:hover::before{height:20px}
.sidebar-nav a.active{background:rgba(247,244,238,.12);color:#FFFFFF;font-weight:600}
.sidebar-nav a.active i{color:#FBF9F4}
.sidebar-nav a.active::after{
  content:"";
  position:absolute;right:14px;top:50%;
  width:7px;height:7px;margin-top:-3.5px;
  border-radius:50%;
  background:var(--c-accent);
}
.sidebar-foot{padding-top:18px;border-top:1px solid rgba(247,244,238,.14);display:flex;flex-direction:column;gap:10px}
.sidebar-foot p{font-size:12px;line-height:1.7;color:rgba(247,244,238,.58)}
.btn-side{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--r-btn);
  background:#F7F4EE;color:var(--c-primary-700);
  font-size:14px;font-weight:700;
  transition:background 160ms ease-out,transform 160ms ease-out;
}
.btn-side:hover{background:#FFFFFF;transform:translateY(-1px)}
.btn-side:active{transform:translateY(1px)}
.btn-side:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

.mobile-bar{
  display:none;
  position:fixed;top:0;left:0;right:0;
  height:64px;
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:var(--c-primary);
  color:#F7F4EE;
  z-index:90;
  box-shadow:0 6px 20px -12px rgba(15,51,44,.6);
}
.menu-toggle{
  width:42px;height:42px;
  display:grid;place-items:center;
  background:rgba(247,244,238,.12);
  border:1px solid rgba(247,244,238,.2);
  border-radius:var(--r-btn);
  color:#F7F4EE;
  cursor:pointer;
}
.mobile-bar .mobile-brand{
  font-family:var(--font-serif);font-size:15px;font-weight:700;
  flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.mobile-bar .mobile-cta{
  font-size:13px;font-weight:600;
  padding:9px 14px;
  border-radius:var(--r-pill);
  background:var(--c-accent);
  color:#FFF7F0;
  white-space:nowrap;
}

.main{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 32px}
.page-wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 32px}

/* ============ 按钮与标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:16px;font-weight:600;
  cursor:pointer;
  transition:background 160ms ease-out,color 160ms ease-out,transform 160ms ease-out,box-shadow 160ms ease-out,border-color 160ms ease-out;
}
.btn-primary{background:var(--c-primary);color:#F7F4EE}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(15,51,44,.55)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-100);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0;height:auto;font-weight:600;border:0}
.btn-ghost i{transition:transform 160ms ease-out}
.btn-ghost:hover i{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-block{width:100%}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-primary-100);
  color:var(--c-primary-700);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  height:36px;padding:0 16px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  background:var(--c-surface);
  font-size:13px;color:var(--c-ink-2);
}
.badge-pill i{color:var(--c-primary-400);font-size:12px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-more i{font-size:12px;transition:transform 160ms ease-out}
.link-more:hover i{transform:translateX(4px)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";
  position:absolute;right:-120px;top:-160px;
  width:520px;height:520px;
  border:1px solid rgba(217,201,168,.65);
  border-radius:50% 50% 0 0;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;left:32px;bottom:32px;
  width:120px;height:120px;
  background-image:linear-gradient(rgba(22,68,58,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(22,68,58,.06) 1px,transparent 1px);
  background-size:20px 20px;
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;
  grid-template-columns:1.04fr .96fr;
  gap:48px;
  align-items:center;
  padding:72px 0 76px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--c-accent);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-accent)}
.hero-inner h1{
  font-size:48px;
  font-weight:700;
  line-height:1.28;
  color:var(--c-primary-700);
}
.hero-sub{
  margin-top:24px;
  max-width:38em;
  font-size:18px;
  line-height:1.9;
  color:var(--c-ink-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-card);
}
.hero-note{
  position:absolute;left:-18px;bottom:-22px;
  width:236px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:16px 18px;
  box-shadow:var(--sh-card);
}
.hero-note .note-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:600;
  color:var(--c-primary);
  line-height:1.2;
}
.hero-note .note-label{font-size:13px;color:var(--c-ink-3);margin-top:4px}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--c-surface-2)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:24px;color:var(--c-primary-700)}
.section-head p{margin-top:16px;font-size:16px;line-height:1.9;color:var(--c-ink-2)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ============ 引导步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.step-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-card);
  transition:border-color 160ms ease-out,transform 160ms ease-out,box-shadow 160ms ease-out;
}
.step-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.step-num{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:var(--r-sm);
  background:var(--c-primary);
  color:#F7F4EE;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:600;
}
.step-card h3{margin-top:20px;font-size:20px;color:var(--c-primary-700)}
.step-card p{margin-top:12px;font-size:14px;line-height:1.9;color:var(--c-ink-2)}
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:24px}
.metric{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  padding:20px 22px;
}
.metric .m-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:600;color:var(--c-primary);line-height:1.2;
}
.metric .m-num small{font-size:16px;margin-left:4px;color:var(--c-ink-2)}
.metric .m-label{font-size:13px;color:var(--c-ink-3);margin-top:6px}

/* ============ 分类页主体：锚点 + bento ============ */
.cat-layout{
  display:grid;
  grid-template-columns:216px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.anchor-rail{position:sticky;top:32px}
.anchor-rail p{
  font-size:12px;letter-spacing:.16em;color:var(--c-ink-3);
  padding-bottom:10px;border-bottom:1px solid var(--c-line);
}
.anchor-rail a{
  display:flex;align-items:center;gap:10px;
  padding:11px 0;
  font-size:14px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
  transition:color 160ms ease-out,transform 160ms ease-out;
}
.anchor-rail a i{font-size:11px;color:var(--c-sand);transition:color 160ms ease-out}
.anchor-rail a:hover{color:var(--c-primary);transform:translateX(4px)}
.anchor-rail a:hover i{color:var(--c-accent)}
.anchor-rail a.active{color:var(--c-primary);font-weight:600}
.anchor-rail a.active i{color:var(--c-accent)}

.cat-block{padding-bottom:64px}
.cat-block:last-child{padding-bottom:0}
.cat-block-head{margin-bottom:28px}
.cat-block-head h2{font-size:24px;color:var(--c-primary-700)}
.cat-block-head p{margin-top:12px;font-size:16px;color:var(--c-ink-2)}
.cat-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}

.card{
  display:flex;flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:border-color 160ms ease-out,transform 160ms ease-out,box-shadow 160ms ease-out;
}
.card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 160ms ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;flex:1 1 auto}
.card-body h3{font-size:20px;color:var(--c-primary-700)}
.card-body > p{font-size:15px;line-height:1.9;color:var(--c-ink-2)}
.card-list{display:flex;flex-direction:column;gap:8px}
.card-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  line-height:1.8;
  color:var(--c-ink-2);
}
.card-list li::before{
  content:"";
  position:absolute;left:0;top:12px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-accent);
}
.card-foot{margin-top:auto;padding-top:6px}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  transition:border-color 160ms ease-out,box-shadow 160ms ease-out;
}
.faq details[open]{border-color:var(--c-primary-400);box-shadow:var(--sh-card)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--c-primary-700);
  cursor:pointer;
  list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";
  font-family:var(--font-num);
  font-size:20px;
  line-height:1;
  color:var(--c-accent);
  transition:transform 240ms ease-out;
}
.faq details[open] summary::after{transform:rotate(225deg)}
.faq .faq-body{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--c-ink-2)}

/* ============ CTA 与表单 ============ */
.cta-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
  padding:44px;
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:48px;
}
.cta-card h2{font-size:24px;color:var(--c-primary-700)}
.cta-card .cta-lead{margin-top:16px;font-size:16px;line-height:1.9;color:var(--c-ink-2)}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.cta-points li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2)}
.cta-points i{color:var(--c-primary-400);margin-top:6px;font-size:12px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.field{display:flex;flex-direction:column;gap:6px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--c-ink-2)}
.req{display:inline-block;width:6px;height:6px;margin-left:6px;border-radius:50%;background:var(--c-accent);vertical-align:middle}
.field input,.field select,.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  font-size:15px;
  color:var(--c-ink);
  transition:border-color 160ms ease-out,box-shadow 160ms ease-out;
}
.field textarea{height:112px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-primary-100);
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-ink-2)}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--c-primary)}
.form-note{font-size:12px;color:var(--c-ink-3);margin-top:12px}
.form-tip{
  margin-top:14px;
  padding:12px 16px;
  border-radius:var(--r-sm);
  background:var(--c-primary-100);
  color:var(--c-primary-700);
  font-size:14px;
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:auto;
  background:var(--c-primary);
  color:#F7F4EE;
  padding:72px 0 28px;
}
.footer-top{border-top:1px solid rgba(247,244,238,.16);padding-top:56px}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand strong{font-family:var(--font-serif);font-size:18px;font-weight:700;color:#FBF9F4}
.footer-about p{font-size:14px;line-height:1.9;color:rgba(247,244,238,.66);max-width:34em}
.footer-col h4{font-size:14px;font-weight:700;color:#FBF9F4;letter-spacing:.04em;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col li{font-size:14px;color:rgba(247,244,238,.66);line-height:1.7}
.footer-col a{color:rgba(247,244,238,.72);transition:color 160ms ease-out}
.footer-col a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(247,244,238,.16);
  font-size:13px;color:rgba(247,244,238,.58);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  :root{--sidebar-w:240px}
  .hero-inner h1{font-size:48px}
}
@media (max-width:1199px){
  :root{--sidebar-w:220px}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .hero-inner h1{font-size:38px}
  .hero-sub{font-size:16px}
  .hero-note{position:static;width:100%;margin-top:20px;box-shadow:none}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:36px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-about{grid-column:1 / -1}
}
@media (max-width:1023px){
  :root{--sidebar-w:84px}
  .sidebar{padding:20px 12px 18px;align-items:center}
  .sidebar-head{padding:0 0 18px;width:100%;display:flex;justify-content:center}
  .sidebar-brand{flex-direction:column;gap:8px;align-items:center}
  .brand-text{display:none}
  .sidebar-nav{width:100%;align-items:center;margin-top:16px}
  .sidebar-nav-title{display:none}
  .sidebar-nav a{justify-content:center;padding:0;width:52px}
  .sidebar-nav a span{display:none}
  .sidebar-nav a::after{display:none}
  .sidebar-foot{align-items:center;width:100%}
  .sidebar-foot p{display:none}
  .btn-side{width:52px;padding:0}
  .btn-side span{display:none}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .cat-layout{grid-template-columns:1fr;gap:28px}
  .anchor-rail{position:static;top:auto;display:flex;gap:10px;overflow-x:auto;padding-bottom:4px}
  .anchor-rail p{display:none}
  .anchor-rail a{
    flex:0 0 auto;
    padding:8px 16px;
    border:1px solid var(--c-line);
    border-radius:var(--r-pill);
    background:var(--c-surface);
    font-size:13px;
  }
  .anchor-rail a:hover{transform:none}
  .steps{grid-template-columns:1fr 1fr}
  .metrics{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .mobile-bar{display:flex}
  .sidebar{
    width:280px;
    padding:24px 20px 22px;
    align-items:stretch;
    transform:translateX(-100%);
    box-shadow:24px 0 60px -30px rgba(15,51,44,.7);
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar-head{padding:0 6px 20px;justify-content:flex-start}
  .sidebar-brand{flex-direction:row;align-items:center;gap:12px}
  .brand-text{display:flex}
  .sidebar-nav{align-items:stretch;margin-top:20px}
  .sidebar-nav a{justify-content:flex-start;padding:0 12px;width:100%}
  .sidebar-nav a span{display:inline}
  .sidebar-nav a.active::after{display:block}
  .sidebar-foot{align-items:stretch}
  .sidebar-foot p{display:block}
  .btn-side{width:100%}
  .btn-side span{display:inline}
  .main{margin-left:0;padding-top:64px}
  .container{padding:0 18px}
  .page-wrap{padding:0 18px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:32px}
  .hero-inner{padding:36px 0 48px;gap:32px}
  .hero-inner h1{font-size:30px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-badges{gap:8px}
  .steps,.metrics,.cat-cards,.form-grid{grid-template-columns:1fr}
  .cta-card{padding:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .card-body{padding:22px 20px 24px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}
@media (max-width:520px){
  .hero-inner h1{font-size:30px}
  .section-head h2,.cat-block-head h2,.cta-card h2{font-size:20px}
}

/* roulang page: category2 */
:root{
  --c-primary:#16443A;
  --c-primary-700:#0F332C;
  --c-primary-400:#3A7A69;
  --c-primary-100:#DCEAE4;
  --c-accent:#C25E36;
  --c-accent-soft:#F6E4D8;
  --c-sand:#D9C9A8;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#17211E;
  --c-ink-2:#4E5A55;
  --c-ink-3:#8B948F;
  --c-line:#E4DED2;
  --c-success:#2F7D5D;
  --c-warn:#B4732A;
  --c-danger:#A5433A;
  --sidebar-w:264px;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 1px 2px rgba(20,69,60,.06), 0 8px 24px -12px rgba(20,69,60,.18);
  --shadow-hover:0 2px 4px rgba(20,69,60,.08), 0 16px 36px -14px rgba(20,69,60,.26);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:var(--c-accent);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC",Georgia,serif;
  font-weight:600;
  line-height:1.3;
  letter-spacing:0;
  margin:0;
  color:var(--c-ink);
}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.num{font-family:Inter,"SF Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums;}

/* 布局骨架 */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--c-primary);
  color:#F2EFE7;
  display:flex;
  flex-direction:column;
  padding:28px 20px 20px;
  z-index:60;
}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:0 6px 6px;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  border-radius:11px;
  background:var(--c-accent);
  color:#FFF8F2;
  display:flex;align-items:center;justify-content:center;
  font-family:"Noto Serif SC",serif;font-size:20px;font-weight:700;
}
.sidebar-brand-text strong{display:block;font-size:16px;font-weight:700;letter-spacing:.04em;color:#FBF8F2;line-height:1.35;}
.sidebar-brand-text span{display:block;font-size:12px;color:rgba(242,239,231,.62);line-height:1.6;}
.sidebar-divider{height:1px;background:rgba(242,239,231,.14);margin:18px 6px;}
.sidebar-nav-title{font-size:12px;letter-spacing:.18em;color:rgba(242,239,231,.5);margin:0 6px 10px;}
.sidebar-nav{display:flex;flex-direction:column;gap:2px;flex:1 1 auto;overflow-y:auto;}
.sidebar-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:48px;padding:0 12px;
  border-radius:var(--radius-sm);
  color:rgba(244,241,234,.82);
  font-size:14px;
  transition:transform .16s ease-out,background .16s ease-out,color .16s ease-out;
}
.sidebar-nav a i{width:18px;font-size:14px;opacity:.85;flex:0 0 18px;text-align:center;}
.sidebar-nav a::before{
  content:"";position:absolute;left:-6px;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:3px;background:var(--c-accent);
  transition:transform .18s ease-out;
}
.sidebar-nav a:hover{color:#FFFFFF;background:rgba(255,255,255,.08);transform:translateX(4px);}
.sidebar-nav a:hover::before{transform:translateY(-50%) scaleY(1);}
.sidebar-nav a.active{background:rgba(255,255,255,.12);color:#FFFFFF;}
.sidebar-nav a.active::after{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);
  margin-left:auto;flex:0 0 6px;
}
.sidebar-foot{margin-top:18px;padding-top:18px;border-top:1px solid rgba(242,239,231,.14);}
.sidebar-foot .btn{width:100%;justify-content:center;}
.sidebar-foot p{font-size:12px;color:rgba(242,239,231,.55);line-height:1.7;margin:12px 0 0;}
.sidebar-foot .sidebar-contact{font-size:13px;color:rgba(242,239,231,.78);}

.content-area{flex:1 1 auto;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column;}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 40px;}
.narrow{max-width:1120px;}

/* 移动端顶部条 */
.mobile-topbar{display:none;}
.sidebar-overlay{display:none;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  min-height:46px;padding:0 24px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,box-shadow .16s ease-out,transform .12s ease-out,border-color .16s ease-out;
}
.btn-primary{background:var(--c-primary);color:#FBF8F2;box-shadow:0 8px 20px -12px rgba(20,69,60,.7);}
.btn-primary:hover{background:var(--c-primary-700);color:#FFFFFF;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(20,69,60,.8);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700);}
.btn-ghost:active{transform:translateY(1px);}
.btn-accent{background:transparent;color:var(--c-accent);border-color:var(--c-accent);}
.btn-accent:hover{background:var(--c-accent-soft);color:#9E4A28;}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;border-radius:8px;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:14px;}
.text-link::after{content:"→";transition:transform .16s ease-out;}
.text-link:hover::after{transform:translateX(3px);}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
}
.badge-accent{background:var(--c-accent-soft);border-color:#EBC9B4;color:#9E4A28;}
.badge-primary{background:var(--c-primary-100);border-color:#C6DCD3;color:var(--c-primary-700);}
.badge-green{background:#E3F0E9;border-color:#C6E0D3;color:var(--c-success);}

/* Hero */
.page-hero{
  position:relative;
  padding:88px 0 72px;
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(217,201,168,.28) 0%, rgba(247,244,238,0) 58%),
    var(--c-bg);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;right:-80px;top:-60px;width:420px;height:420px;
  border:1px solid var(--c-primary-400);border-radius:50% 50% 0 0;
  opacity:.06;pointer-events:none;
}
.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;z-index:1;}
.hero-eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:20px;}
.hero-eyebrow span{font-size:13px;letter-spacing:.16em;color:var(--c-primary-400);font-weight:600;}
.hero-eyebrow i{color:var(--c-accent);font-size:12px;}
.page-hero h1{font-size:44px;font-weight:700;line-height:1.28;max-width:15em;}
.page-hero h1 em{font-style:normal;color:var(--c-primary-400);}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.9;color:var(--c-ink-2);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;}
.hero-trust .badge{padding:8px 16px;font-size:13px;font-weight:500;}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;border:1px solid var(--c-line);box-shadow:var(--shadow-card);}
.hero-figure-tag{
  position:absolute;left:20px;bottom:20px;
  background:rgba(20,69,60,.92);color:#F6F3EB;
  border-radius:var(--radius-md);padding:14px 18px;
  font-size:13px;line-height:1.7;max-width:75%;
}
.hero-figure-tag strong{display:block;font-size:15px;font-family:"Noto Serif SC",serif;}

/* 通用板块 */
.section{padding:96px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--c-accent);margin-bottom:16px;}
.section-head h2{font-size:30px;}
.section-head p{margin-top:18px;color:var(--c-ink-2);font-size:16px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;}

/* 引导要点 */
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:0;}
.intro-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:30px 26px;box-shadow:var(--shadow-card);
  transition:border-color .16s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.intro-item:hover{border-color:var(--c-primary-400);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.intro-item i{font-size:20px;color:var(--c-primary-400);margin-bottom:16px;display:block;}
.intro-item h3{font-size:18px;margin-bottom:10px;}
.intro-item p{font-size:14px;color:var(--c-ink-2);line-height:1.85;}

/* 时间线 */
.timeline{position:relative;max-width:1060px;margin:0 auto;padding:8px 0 0;}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--c-line);}
.tl-item{position:relative;width:50%;padding:0 56px 44px 0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 44px 56px;}
.tl-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:border-color .16s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.tl-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.tl-card h3{font-size:20px;margin-bottom:12px;}
.tl-card p{font-size:15px;color:var(--c-ink-2);line-height:1.9;}
.tl-points{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.tl-points li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.75;}
.tl-points li i{color:var(--c-accent);font-size:11px;margin-top:8px;flex:0 0 12px;}
.tl-meta{margin-top:18px;padding-top:14px;border-top:1px dashed var(--c-line);display:flex;flex-wrap:wrap;gap:10px;}
.tl-node{
  position:absolute;top:0;right:-26px;
  width:52px;height:52px;border-radius:14px;
  background:var(--c-primary);color:#F5F1E8;
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,ui-monospace,monospace;font-size:17px;font-weight:600;
  border:4px solid var(--c-bg);
  z-index:2;
}
.tl-item:nth-child(even) .tl-node{right:auto;left:-26px;background:var(--c-accent);}

/* 指标小卡 */
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;}
.metric-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:28px 26px;box-shadow:var(--shadow-card);
  transition:border-color .16s ease-out,transform .18s ease-out;
}
.metric-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);}
.metric-card .metric-value{font-family:Inter,ui-monospace,monospace;font-variant-numeric:tabular-nums;font-size:44px;font-weight:600;color:var(--c-primary);line-height:1.1;}
.metric-card .metric-value small{font-size:16px;font-weight:500;margin-left:4px;color:var(--c-ink-2);}
.metric-card .metric-label{margin-top:10px;font-size:14px;color:var(--c-ink-2);}
.metric-card .metric-foot{margin-top:14px;font-size:12px;color:var(--c-ink-3);}
.metric-card .trend-up{color:var(--c-success);font-weight:600;}
.metric-card .trend-warn{color:var(--c-warn);font-weight:600;}

/* 原因对照 */
.compare-grid{display:grid;grid-template-columns:1fr 1px 1fr;gap:0;align-items:stretch;background:var(--c-surface);border:1px solid var(--c-line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-card);}
.compare-col{padding:36px 32px;}
.compare-col.old{background:var(--c-surface-2);}
.compare-col.new{background:#F1F7F3;}
.compare-divider{background:var(--c-line);}
.compare-col h3{font-size:20px;margin-bottom:8px;}
.compare-col .compare-note{font-size:13px;color:var(--c-ink-3);margin-bottom:26px;}
.compare-line{margin-bottom:22px;}
.compare-line .cl-top{display:flex;justify-content:space-between;gap:16px;font-size:14px;color:var(--c-ink-2);margin-bottom:8px;}
.compare-line .cl-top b{font-family:Inter,ui-monospace,monospace;font-weight:600;color:var(--c-ink);}
.bar{height:8px;border-radius:999px;background:#E3DED3;overflow:hidden;}
.bar span{display:block;height:100%;border-radius:999px;background:var(--c-ink-3);}
.compare-col.new .bar{background:#D7E6DE;}
.compare-col.new .bar span{background:var(--c-primary-400);}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-md);overflow:hidden;transition:border-color .16s ease-out;}
.faq-item:hover{border-color:var(--c-primary-400);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:20px 22px;font-size:17px;font-weight:500;color:var(--c-ink);
}
.faq-q .faq-icon{flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:12px;transition:transform .24s ease-out,background .16s ease-out;}
.faq-item.open .faq-icon{transform:rotate(240deg);background:var(--c-primary-100);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--c-ink-2);margin:0;}

/* 表单 */
.apply-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:20px;
  padding:44px 44px 38px;box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;
}
.apply-aside h2{font-size:30px;margin-bottom:18px;}
.apply-aside p{font-size:15px;color:var(--c-ink-2);}
.apply-aside .aside-list{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.apply-aside .aside-list li{display:flex;gap:12px;font-size:14px;color:var(--c-ink-2);}
.apply-aside .aside-list li i{color:var(--c-primary-400);margin-top:6px;font-size:12px;}
.form-field{margin-bottom:18px;}
.form-field label{display:block;font-size:13px;color:var(--c-ink-2);margin-bottom:8px;}
.form-field label .req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-left:6px;vertical-align:2px;}
.form-field input,.form-field select,.form-field textarea{
  width:100%;min-height:46px;padding:11px 14px;
  border:1px solid var(--c-line);border-radius:var(--radius-sm);
  background:var(--c-bg);color:var(--c-ink);font-size:15px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out,background .16s ease-out;
}
.form-field textarea{min-height:112px;resize:vertical;line-height:1.8;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--c-primary);background:var(--c-surface);
  box-shadow:0 0 0 2px rgba(58,122,105,.22);
}
.form-field.has-error input,.form-field.has-error select{border-color:var(--c-danger);}
.form-field .err-msg{display:none;font-size:12px;color:var(--c-danger);margin-top:6px;}
.form-field.has-error .err-msg{display:block;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-ink-2);line-height:1.7;margin:6px 0 22px;}
.form-consent input{width:16px;height:16px;margin-top:5px;accent-color:var(--c-primary);}
.form-submit{width:100%;justify-content:center;}
.form-privacy{margin-top:14px;font-size:12px;color:var(--c-ink-3);line-height:1.7;}

/* CTA 条 */
.cta-band{
  background:var(--c-primary);color:#F4F1E9;border-radius:20px;
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:280px;height:280px;
  border:1px solid rgba(217,201,168,.3);border-radius:50% 50% 0 0;
}
.cta-band h2{color:#FBF8F2;font-size:30px;margin-bottom:14px;}
.cta-band p{color:rgba(244,241,233,.76);font-size:15px;max-width:46em;}
.cta-band .btn-primary{background:var(--c-accent);}
.cta-band .btn-primary:hover{background:#A94E2B;}
.cta-band .btn-ghost{color:#F4F1E9;border-color:rgba(244,241,233,.5);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#FFFFFF;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* 页脚 */
.site-footer{background:var(--c-primary-700);color:rgba(244,241,233,.82);margin-top:96px;}
.footer-top{padding:64px 0 28px;border-top:1px solid rgba(244,241,233,.14);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);}
.footer-brand strong{color:#FBF8F2;font-size:16px;font-family:"Noto Serif SC",serif;font-weight:700;}
.footer-about p{font-size:13px;line-height:1.85;color:rgba(244,241,233,.65);max-width:34em;}
.footer-col h4{font-size:14px;color:#FBF8F2;margin-bottom:18px;font-weight:600;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:13px;color:rgba(244,241,233,.68);}
.footer-col a{color:rgba(244,241,233,.78);font-size:13px;}
.footer-col a:hover{color:#FFFFFF;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(244,241,233,.14);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12px;color:rgba(244,241,233,.55);
}

/* 断点 */
@media (max-width:1439px){
  :root{--sidebar-w:240px;}
  .container{padding:0 32px;}
}
@media (max-width:1199px){
  :root{--sidebar-w:220px;}
  .page-hero h1{font-size:38px;}
  .page-hero-grid{gap:40px;}
  .apply-card{padding:38px 32px;gap:36px;}
}
@media (max-width:1023px){
  :root{--sidebar-w:84px;}
  .sidebar{padding:22px 12px 16px;}
  .sidebar-brand-text,.sidebar-nav-title,.sidebar-foot p,.sidebar-nav a span{display:none;}
  .sidebar-brand{justify-content:center;padding:0 0 6px;}
  .sidebar-nav a{justify-content:center;padding:0;gap:0;}
  .sidebar-nav a::before{display:none;}
  .sidebar-nav a::after{display:none!important;}
  .sidebar-foot .btn span{display:none;}
  .sidebar-foot .btn{padding:0;justify-content:center;}
  .container{padding:0 28px;}
  .page-hero-grid{grid-template-columns:1fr;}
  .hero-figure{order:-1;}
  .intro-grid{grid-template-columns:1fr 1fr;}
  .metric-row{grid-template-columns:1fr 1fr;}
  .apply-card{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .sidebar{
    width:280px;padding:24px 20px 20px;
    transform:translateX(-100%);
    transition:transform .26s ease-out;
    box-shadow:0 0 60px rgba(0,0,0,.3);
  }
  .sidebar.is-open{transform:translateX(0);}
  .sidebar-brand-text,.sidebar-nav-title,.sidebar-nav a span,.sidebar-foot p{display:block;}
  .sidebar-brand{justify-content:flex-start;}
  .sidebar-nav a{justify-content:flex-start;padding:0 12px;gap:12px;}
  .sidebar-foot .btn{padding:0 24px;}
  .sidebar-foot .btn span{display:inline;}
  .content-area{margin-left:0;}
  .sidebar-overlay{
    display:block;position:fixed;inset:0;background:rgba(15,51,44,.45);
    opacity:0;pointer-events:none;transition:opacity .24s ease-out;z-index:55;
  }
  .sidebar-overlay.is-visible{opacity:1;pointer-events:auto;}
  .mobile-topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:sticky;top:0;z-index:50;
    background:var(--c-primary);color:#FBF8F2;
    padding:12px 16px;box-shadow:0 6px 20px -12px rgba(15,51,44,.8);
  }
  .mobile-topbar .mt-brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:600;color:#FBF8F2;}
  .mobile-topbar .mt-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:17px;border-radius:9px;}
  .mt-toggle{
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#FBF8F2;
    width:40px;height:40px;border-radius:10px;cursor:pointer;font-size:16px;
  }
  .mt-cta{background:var(--c-accent);color:#FFF8F2;border:0;border-radius:10px;height:40px;padding:0 14px;font-size:13px;font-weight:600;}
  .container{padding:0 18px;}
  .page-hero{padding:48px 0 44px;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:34px;}
  .intro-grid{grid-template-columns:1fr;}
  .metric-row{grid-template-columns:1fr 1fr;gap:14px;}
  .metric-card{padding:20px 18px;}
  .metric-card .metric-value{font-size:30px;}
  .timeline::before{left:20px;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 32px 60px;}
  .tl-node,.tl-item:nth-child(even) .tl-node{left:-4px;right:auto;width:44px;height:44px;font-size:15px;border-radius:12px;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-divider{height:1px;width:100%;}
  .compare-col{padding:26px 20px;}
  .apply-card{padding:26px 20px;}
  .apply-aside h2{font-size:24px;}
  .form-row{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;}
  .cta-band h2{font-size:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:56px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category3 */
:root{
  --c-primary:#16443A;
  --c-primary-700:#0F332C;
  --c-primary-400:#3A7A69;
  --c-primary-100:#DCEAE4;
  --c-accent:#C25E36;
  --c-accent-soft:#F6E4D8;
  --c-sand:#D9C9A8;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#17211E;
  --c-ink-2:#4E5A55;
  --c-ink-3:#8B948F;
  --c-line:#E4DED2;
  --c-success:#2F7D5D;
  --c-warn:#B4732A;
  --c-danger:#A5433A;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(20,69,60,.06),0 8px 24px -12px rgba(20,69,60,.18);
  --shadow-hover:0 2px 4px rgba(20,69,60,.08),0 16px 32px -14px rgba(20,69,60,.26);
  --sidebar-w:264px;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:Inter,"Segoe UI",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;line-height:1.3;letter-spacing:0}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .16s ease-out,background-color .16s ease-out}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 24px}

/* ---------- layout ---------- */
.layout{min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-primary);color:#F4F1E9;z-index:60;
  border-right:1px solid rgba(255,255,255,.08);
  display:flex;flex-direction:column;
}
.sidebar-inner{display:flex;flex-direction:column;height:100%;padding:24px 16px;overflow-y:auto}
.brand{display:flex;align-items:center;gap:12px;padding:4px 6px 20px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:20px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--c-accent);color:#fff;
  display:grid;place-items:center;font-family:var(--serif);font-size:20px;font-weight:700;line-height:1;
}
.brand-text strong{display:block;font-size:15px;font-weight:600;line-height:1.4;color:#fff}
.brand-text em{display:block;font-style:normal;font-size:12px;color:rgba(244,241,233,.6);line-height:1.6;letter-spacing:.02em}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.sidebar-nav-title{font-size:12px;letter-spacing:.14em;color:rgba(244,241,233,.48);padding:0 10px 8px;margin:0}
.sidebar-nav a{
  position:relative;display:flex;align-items:center;gap:12px;height:48px;padding:0 12px;
  border-radius:10px;font-size:15px;color:rgba(244,241,233,.82);
  transition:background-color .16s ease-out,transform .16s ease-out,color .16s ease-out;
}
.sidebar-nav a i{width:20px;text-align:center;font-size:15px;flex:0 0 20px}
.sidebar-nav a::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:22px;border-radius:2px;
  background:var(--c-accent);transform:translateY(-50%) scaleY(0);transition:transform .16s ease-out;
}
.sidebar-nav a:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(4px)}
.sidebar-nav a:hover::before{transform:translateY(-50%) scaleY(1)}
.sidebar-nav a.active{background:rgba(247,244,238,.12);color:#fff}
.sidebar-nav a.active::after{
  content:"";position:absolute;right:12px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);transform:translateY(-50%);
}
.sidebar-foot{padding-top:16px;border-top:1px solid rgba(255,255,255,.12);margin-top:20px}
.sidebar-foot .btn{background:var(--c-accent);color:#fff;border-color:transparent}
.sidebar-foot .btn:hover{background:#A94E2B;color:#fff}
.sidebar-meta{font-size:12px;line-height:1.7;color:rgba(244,241,233,.55);margin:12px 0 0}

.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;padding:0 16px;
  background:rgba(22,68,58,.98);color:#fff;align-items:center;gap:12px;z-index:70;
  border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:saturate(140%) blur(4px);
}
.hamburger{
  width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;background:transparent;
  border:1px solid rgba(255,255,255,.24);border-radius:10px;color:#fff;cursor:pointer;
  transition:background-color .16s ease-out;
}
.hamburger:hover{background:rgba(255,255,255,.12)}
.topbar-brand{
  flex:1;font-family:var(--serif);font-size:15px;font-weight:700;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;
}
.scrim{
  position:fixed;inset:0;background:rgba(15,51,44,.5);opacity:0;pointer-events:none;
  transition:opacity .24s ease;z-index:55;
}
.scrim.show{opacity:1;pointer-events:auto}

.content{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;font-family:inherit;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.btn-primary{background:var(--c-primary);color:#F7F4EE;box-shadow:0 1px 2px rgba(20,69,60,.08)}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(20,69,60,.55)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-100)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:96px 0;background:linear-gradient(180deg,#FBF9F4 0%,var(--c-bg) 100%)}
.hero::before{
  content:"";position:absolute;right:-120px;top:-80px;width:560px;height:660px;
  border:1px solid var(--c-primary);border-radius:300px 300px 28px 28px;opacity:.06;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-100);border-radius:999px;padding:6px 14px;
}
.hero h1{font-size:48px;margin:20px 0 0;max-width:16em}
.hero-sub{font-size:18px;color:var(--c-ink-2);margin-top:16px;max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.trust-badges li{
  font-size:13px;color:var(--c-ink-2);background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:999px;padding:6px 14px;
}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-card);
  background:var(--c-surface-2);
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{margin-bottom:48px;max-width:46em}
.section-title{font-size:30px}
.section-lead{font-size:17px;color:var(--c-ink-2);margin-top:12px}

/* ---------- chips ---------- */
.chips-section{padding:40px 0 8px}
.chips-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line);background:var(--c-surface);font-size:14px;color:var(--c-ink-2);
  transition:border-color .16s ease-out,color .16s ease-out,background-color .16s ease-out,transform .16s ease-out;
  cursor:default;
}
.chip:hover{border-color:var(--c-primary-400);color:var(--c-primary);transform:translateY(-1px)}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#F7F4EE;font-weight:600}
.chip-note{font-size:13px;color:var(--c-ink-3);margin-top:14px}

/* ---------- feature rows ---------- */
.feature{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:48px 0;border-bottom:1px solid var(--c-line);
}
.feature:last-child{border-bottom:0;padding-bottom:0}
.feature:first-child{padding-top:0}
.feature.reverse .feature-media{order:2}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:20px;
  box-shadow:var(--shadow-card);background:var(--c-surface-2);
}
.feature-index{
  display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--c-primary-100);color:var(--c-primary);font-family:var(--mono);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.feature-body h3{font-size:24px;margin-bottom:16px}
.feature-body p{color:var(--c-ink-2)}
.stats-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0;padding:20px;
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:var(--radius-sm);
}
.stat strong{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:600;line-height:1.2;color:var(--c-primary);
}
.stat span{display:block;font-size:13px;color:var(--c-ink-3);line-height:1.6;margin-top:4px}
.verdict{
  font-size:15px;color:var(--c-ink);background:var(--c-accent-soft);
  border-left:3px solid var(--c-accent);border-radius:0 10px 10px 0;padding:12px 16px;margin:0;
}

/* ---------- info cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-card);
  transition:border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.info-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.info-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-100);color:var(--c-primary);
  display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.info-card h3{font-size:20px;margin-bottom:12px}
.info-card p{font-size:15px;color:var(--c-ink-2);margin:0}

/* ---------- faq ---------- */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .16s ease-out;
}
.faq-item:hover{border-color:var(--c-primary-400)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;font-size:17px;font-weight:500;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-family:var(--mono);font-size:20px;line-height:1;color:var(--c-accent);
  transition:transform .24s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(240deg)}
.faq-body{
  padding:16px 20px 20px;font-size:15px;line-height:1.9;color:var(--c-ink-2);
  border-top:1px solid var(--c-line);
}

/* ---------- cta ---------- */
.cta-section{padding:96px 0}
.cta-card{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:20px;
  padding:48px;box-shadow:var(--shadow-card);
}
.cta-notes{margin-top:24px}
.cta-notes li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);margin-bottom:10px;line-height:1.7}
.cta-notes li i{color:var(--c-accent);font-size:12px;margin-top:8px;flex:0 0 auto}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--c-ink-2)}
.field label .req{color:var(--c-accent);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:var(--radius-btn);
  background:var(--c-bg);padding:0 14px;font-size:15px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--c-primary-400)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:var(--c-surface);
  box-shadow:0 0 0 3px rgba(22,68,58,.12);
}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-ink-2);line-height:1.7}
.checkbox-row input{width:16px;height:16px;margin-top:5px;flex:0 0 16px;accent-color:var(--c-primary)}
.form-hint{font-size:12px;color:var(--c-ink-3);margin-top:12px}
.form-actions{margin-top:4px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-700);color:rgba(247,244,238,.86);margin-top:auto}
.footer-top{padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.footer-brand strong{font-family:var(--serif);font-size:17px;font-weight:700}
.footer-about p{font-size:14px;line-height:1.85;color:rgba(247,244,238,.66);max-width:34em;margin:0}
.footer-col h4{font-size:15px;font-family:var(--sans);font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:rgba(247,244,238,.72);line-height:1.7}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,238,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1439px){
  :root{--sidebar-w:240px}
}
@media (max-width:1199px){
  :root{--sidebar-w:220px}
  .hero{padding:72px 0}
  .hero h1{font-size:38px}
  .section,.cta-section{padding:72px 0}
  .section-title{font-size:30px}
}
@media (max-width:1023px){
  :root{--sidebar-w:84px}
  .sidebar-inner{padding:20px 12px}
  .brand{justify-content:center;padding:4px 0 18px}
  .brand-text{display:none}
  .sidebar-nav-title{display:none}
  .sidebar-nav a{justify-content:center;padding:0}
  .sidebar-nav a::before{display:none}
  .sidebar-nav a:hover{transform:none}
  .sidebar-nav a span{
    position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);
    background:var(--c-primary-700);color:#fff;padding:6px 12px;border-radius:8px;
    font-size:13px;white-space:nowrap;opacity:0;pointer-events:none;
    border:1px solid rgba(255,255,255,.14);transition:opacity .16s ease-out;z-index:6;
  }
  .sidebar-nav a:hover span{opacity:1}
  .sidebar-nav a.active::after{right:8px;top:12px;transform:none}
  .sidebar-foot .btn span{display:none}
  .sidebar-foot .btn{padding:0;width:44px;margin:0 auto;display:flex}
  .sidebar-meta{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:38px}
  .feature{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .feature.reverse .feature-media{order:0}
  .feature:first-child{padding-top:0}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .28s ease;box-shadow:0 0 40px rgba(0,0,0,.24);
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar-inner{padding:24px 16px}
  .brand{justify-content:flex-start;padding:4px 6px 20px}
  .brand-text{display:block}
  .sidebar-nav-title{display:block}
  .sidebar-nav a{justify-content:flex-start;padding:0 12px}
  .sidebar-nav a span{position:static;opacity:1;background:none;border:0;padding:0;color:inherit;font-size:15px;transform:none}
  .sidebar-nav a::before{display:block}
  .sidebar-nav a.active::after{right:12px;top:50%;transform:translateY(-50%)}
  .sidebar-foot .btn span{display:inline}
  .sidebar-foot .btn{padding:0 24px;width:100%}
  .sidebar-meta{display:block}
  .topbar{display:flex}
  .content{margin-left:0;padding-top:56px}
  .container{padding:0 16px}
  .hero{padding:56px 0}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .section,.cta-section{padding:56px 0}
  .section-title{font-size:24px}
  .section-head{margin-bottom:32px}
  .grid-2{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr;gap:12px;padding:16px}
  .stat strong{font-size:30px}
  .form-grid{grid-template-columns:1fr}
  .cta-card{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-top{padding:48px 0 24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{font-size:16px;padding:16px}
  .faq-body{padding:14px 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* roulang page: category4 */
:root{
  --c-primary:#16443A;--c-primary-700:#0F332C;--c-primary-400:#3A7A69;--c-primary-100:#DCEAE4;
  --c-accent:#C25E36;--c-accent-soft:#F6E4D8;--c-sand:#D9C9A8;
  --c-bg:#F7F4EE;--c-surface:#FFFFFF;--c-surface-2:#EFEAE1;
  --c-ink:#17211E;--c-ink-2:#4E5A55;--c-ink-3:#8B948F;--c-line:#E4DED2;
  --c-success:#2F7D5D;--c-warn:#B4732A;--c-danger:#A5433A;
  --r-lg:20px;--r-card:16px;--r-sm:12px;--r-btn:10px;
  --sh-card:0 1px 2px rgba(20,69,60,.06),0 8px 24px -12px rgba(20,69,60,.18);
  --sh-hover:0 2px 4px rgba(20,69,60,.08),0 16px 34px -14px rgba(20,69,60,.26);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:17px;line-height:1.9;letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--c-primary-400)}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  font-weight:700;line-height:1.3;margin:0;color:var(--c-ink);
}
h1{font-size:38px;letter-spacing:0}
h2{font-size:30px}
h3{font-size:20px}
h4{font-size:18px}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-primary-400);outline-offset:2px}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 var(--sp-6)}
.tnum{font-variant-numeric:tabular-nums;font-family:Inter,"SFMono-Regular",ui-monospace,monospace}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:264px;z-index:60;
  background:var(--c-primary);color:#F2EFE8;padding:var(--sp-5) var(--sp-4);
  display:flex;flex-direction:column;gap:var(--sp-5);overflow-y:auto;
}
.sidebar-head{border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:var(--sp-5)}
.brand{display:flex;align-items:center;gap:var(--sp-3)}
.brand:hover{color:#fff}
.brand-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:var(--c-accent-soft);color:var(--c-primary);
  display:grid;place-items:center;font-family:"Noto Serif SC",serif;font-weight:700;font-size:20px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.brand-text strong{font-size:16px;font-weight:700;color:#FDFBF7}
.brand-text small{font-size:12px;color:rgba(242,239,232,.68);white-space:nowrap}
.sidebar-nav-title{font-size:12px;letter-spacing:.14em;color:rgba(242,239,232,.5);margin:0 0 var(--sp-3);padding-left:var(--sp-3)}
.sidebar-nav{display:flex;flex-direction:column;gap:var(--sp-2)}
.sidebar-nav a{
  position:relative;display:flex;align-items:center;gap:var(--sp-3);height:48px;padding:0 var(--sp-3);
  border-radius:var(--r-btn);color:rgba(242,239,232,.84);font-size:15px;
  transition:background .16s ease-out,transform .16s ease-out,color .16s ease-out;
}
.sidebar-nav a i{width:20px;text-align:center;font-size:15px;color:inherit}
.sidebar-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:999px;background:var(--c-accent);transition:height .16s ease-out;
}
.sidebar-nav a:hover{background:rgba(255,255,255,.07);color:#fff;transform:translateX(4px)}
.sidebar-nav a:hover::before{height:22px}
.sidebar-nav a.active{background:rgba(255,255,255,.12);color:#fff}
.sidebar-nav a.active::after{
  content:"";position:absolute;right:12px;width:7px;height:7px;border-radius:999px;background:var(--c-accent);
}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:var(--sp-3);border-top:1px solid rgba(255,255,255,.14);padding-top:var(--sp-5)}
.sidebar-foot p{margin:0;font-size:12px;line-height:1.7;color:rgba(242,239,232,.6)}
.sidebar-contact{color:rgba(242,239,232,.82)!important}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);
  height:46px;padding:0 var(--sp-5);border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.btn-primary{background:var(--c-primary);color:#FDFBF7}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-card)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700)}
.btn-block{width:100%}
.btn-sm{height:38px;padding:0 var(--sp-4);font-size:14px}
.btn[disabled]{opacity:.4;cursor:not-allowed}
.link-more{font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-more::after{content:"→";transition:transform .16s ease-out}
.link-more:hover::after{transform:translateX(3px)}

/* ---------- 页面骨架 ---------- */
.page{margin-left:264px;min-height:100vh;display:flex;flex-direction:column}
.topbar{
  display:none;position:sticky;top:0;z-index:40;align-items:center;gap:var(--sp-3);
  padding:var(--sp-3) var(--sp-4);background:var(--c-primary);color:#FDFBF7;
}
.topbar .brand-text strong{font-size:15px}
.topbar .brand-text small{display:none}
.burger{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.24);
  color:#FDFBF7;display:grid;place-items:center;font-size:16px;
}
.topbar-cta{margin-left:auto}
.topbar-cta .btn{height:40px;padding:0 var(--sp-4);background:var(--c-accent);color:#fff;font-size:14px}
.topbar-cta .btn:hover{background:#A94E2B;color:#fff}
.overlay{
  display:none;position:fixed;inset:0;background:rgba(15,51,44,.5);z-index:55;opacity:0;transition:opacity .2s ease-out;
}
.overlay.show{opacity:1}

main{flex:1}
.section{padding:var(--sp-9) 0}
.section-tight{padding-top:0}
.section-alt{background:var(--c-surface)}
.section-head{max-width:760px;margin-bottom:var(--sp-7)}
.eyebrow{
  display:inline-flex;align-items:center;gap:var(--sp-2);font-size:13px;font-weight:600;color:var(--c-accent);
  letter-spacing:.08em;margin-bottom:var(--sp-4);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-accent)}
.section-head p{color:var(--c-ink-2);font-size:16px;margin-top:var(--sp-4);max-width:700px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--c-bg);border-bottom:1px solid var(--c-line)}
.hero::before{
  content:"";position:absolute;right:-180px;bottom:-300px;width:560px;height:560px;
  border:1px solid var(--c-sand);opacity:.35;border-radius:50% 50% 0 0;pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:var(--sp-7);align-items:center;
  padding:var(--sp-9) 0;
}
.hero h1{font-size:38px;margin-bottom:var(--sp-5)}
.hero h1 em{font-style:normal;color:var(--c-primary-400)}
.hero-sub{font-size:17px;color:var(--c-ink-2);max-width:620px;margin-bottom:var(--sp-6)}
.hero-actions{display:flex;gap:var(--sp-4);flex-wrap:wrap;margin-bottom:var(--sp-6)}
.hero-badges{display:flex;gap:var(--sp-3);flex-wrap:wrap}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);
  border:1px solid var(--c-line);background:var(--c-surface);border-radius:999px;padding:8px 14px;
}
.badge-pill i{color:var(--c-primary-400);font-size:12px}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-card);aspect-ratio:4/3}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:#F7F4EE;
  background:linear-gradient(to top,rgba(15,51,44,.82),rgba(15,51,44,0));
}

/* ---------- 指标 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-5)}
.metric{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:var(--sp-5);box-shadow:var(--sh-card);transition:border-color .16s ease-out,transform .16s ease-out;
}
.metric:hover{border-color:var(--c-primary-400);transform:translateY(-2px)}
.metric-value{font-size:44px;font-weight:600;line-height:1;color:var(--c-primary);display:flex;align-items:baseline;gap:6px}
.metric-value span{font-size:16px;font-weight:500;color:var(--c-ink-2)}
.metric-label{margin-top:var(--sp-3);font-size:14px;font-weight:600;color:var(--c-ink)}
.metric-note{margin-top:6px;font-size:13px;color:var(--c-ink-3);line-height:1.7}
.metric-flag{margin-top:var(--sp-3);font-size:13px;color:var(--c-success);display:inline-flex;align-items:center;gap:6px}
.metric-flag.warn{color:var(--c-warn)}

/* ---------- 要点卡 ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-5)}
.guide-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:var(--sp-6);box-shadow:var(--sh-card);transition:border-color .16s ease-out,transform .16s ease-out;
}
.guide-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px)}
.num-block{
  width:38px;height:38px;border-radius:var(--r-sm);background:var(--c-primary-100);color:var(--c-primary);
  display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:var(--sp-4);
}
.guide-card h3{font-size:18px;margin-bottom:var(--sp-3)}
.guide-card p{font-size:15px;color:var(--c-ink-2);line-height:1.85}

/* ---------- 分组列表（分类页4 主体） ---------- */
.group{margin-bottom:var(--sp-7)}
.group:last-child{margin-bottom:0}
.group-head{display:flex;align-items:baseline;gap:var(--sp-3);margin-bottom:var(--sp-4);flex-wrap:wrap}
.group-head h3{font-size:20px}
.group-head span{font-size:13px;color:var(--c-ink-3)}
.row-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card)}
.row-item{
  display:grid;grid-template-columns:200px 1fr auto;gap:var(--sp-5);align-items:center;
  padding:var(--sp-5);border-top:1px solid var(--c-line);transition:background .16s ease-out;
}
.row-item:first-child{border-top:0}
.row-item:hover{background:var(--c-surface-2)}
.row-thumb{width:200px;aspect-ratio:5/3;border-radius:var(--r-sm);overflow:hidden;background:var(--c-surface-2)}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .16s ease-out}
.row-item:hover .row-thumb img{transform:scale(1.03)}
.row-body h4{font-size:17px;margin-bottom:var(--sp-2)}
.row-body p{font-size:15px;color:var(--c-ink-2);line-height:1.85;margin-bottom:var(--sp-3);max-width:640px}
.row-tags{display:flex;gap:var(--sp-2);flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;font-size:12px;color:var(--c-primary-700);background:var(--c-primary-100);
  border-radius:999px;padding:4px 10px;
}
.tag.accent{background:var(--c-accent-soft);color:#8E3F1F}
.row-actions{display:flex;gap:var(--sp-2);align-items:center;flex-wrap:wrap;justify-content:flex-end}

/* ---------- 档位对照表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);box-shadow:var(--sh-card)}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--c-line)}
thead th{
  background:var(--c-primary);color:#FDFBF7;font-weight:600;font-size:14px;letter-spacing:.04em;
}
tbody tr:nth-child(even){background:#FAF8F4}
tbody tr:hover{background:var(--c-primary-100)}
tbody tr:last-child td{border-bottom:0}
td:first-child{font-weight:600;color:var(--c-ink);width:26%}
td .dot{display:inline-flex;align-items:center;gap:8px;color:var(--c-ink-2)}
td .dot i{color:var(--c-success);font-size:13px}
td .dot.off i{color:var(--c-ink-3)}
.table-note{margin-top:var(--sp-4);font-size:13px;color:var(--c-ink-3)}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-5);position:relative}
.flow-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:var(--sp-6);position:relative;box-shadow:var(--sh-card);
}
.flow-item::after{
  content:"";position:absolute;top:50px;right:-14px;width:28px;height:1px;background:var(--c-sand);
}
.flow-item:last-child::after{display:none}
.flow-item h4{font-size:17px;margin:var(--sp-4) 0 var(--sp-3)}
.flow-item p{font-size:15px;color:var(--c-ink-2);line-height:1.85}
.flow-step{font-size:12px;letter-spacing:.12em;color:var(--c-accent);font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;display:flex;flex-direction:column;gap:var(--sp-3)}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-surface);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--c-accent);line-height:1;
  transition:transform .24s ease-out;
}
.faq-item[open] summary::after{transform:rotate(135deg)}
.faq-item[open] summary{background:var(--c-surface-2)}
.faq-body{padding:6px 22px 20px;font-size:15px;line-height:1.9;color:var(--c-ink-2)}

/* ---------- CTA 表单 ---------- */
.cta-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);padding:var(--sp-8);display:grid;grid-template-columns:1fr 1.1fr;gap:var(--sp-8);
}
.cta-intro h2{margin-bottom:var(--sp-4)}
.cta-intro p{color:var(--c-ink-2);font-size:16px}
.cta-points{margin-top:var(--sp-5);display:flex;flex-direction:column;gap:var(--sp-3)}
.cta-points li{display:flex;gap:var(--sp-3);font-size:15px;color:var(--c-ink-2)}
.cta-points i{color:var(--c-primary-400);margin-top:6px;font-size:13px}
form .field{margin-bottom:var(--sp-4)}
form label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-2);margin-bottom:6px}
form label .req{color:var(--c-accent);margin-left:4px}
input[type="text"],input[type="tel"],select,textarea{
  width:100%;min-height:46px;padding:10px 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);font-size:15px;transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
textarea{min-height:110px;resize:vertical;line-height:1.8}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--c-primary-400);box-shadow:0 0 0 2px var(--c-primary-100);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-4)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-ink-2);line-height:1.7}
.check input{width:16px;height:16px;margin-top:5px;accent-color:var(--c-primary)}
.form-note{font-size:12px;color:var(--c-ink-3);margin-top:var(--sp-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:#F2EFE8;margin-top:var(--sp-9)}
.footer-top{padding:var(--sp-8) 0 var(--sp-5)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-7);border-top:1px solid rgba(255,255,255,.16);padding-top:var(--sp-7)}
.footer-brand{display:flex;align-items:center;gap:var(--sp-3);margin-bottom:var(--sp-4)}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#FDFBF7}
.footer-brand strong{font-family:"Noto Serif SC",serif;font-size:17px;color:#FDFBF7}
.footer-about p{font-size:14px;color:rgba(242,239,232,.7);line-height:1.85;max-width:360px}
.footer-col h4{font-size:15px;color:#FDFBF7;margin-bottom:var(--sp-4)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:rgba(242,239,232,.72)}
.footer-col a{color:rgba(242,239,232,.78);font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:var(--sp-7);border-top:1px solid rgba(255,255,255,.16);padding-top:var(--sp-5);
  display:flex;justify-content:space-between;gap:var(--sp-4);flex-wrap:wrap;
  font-size:13px;color:rgba(242,239,232,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .sidebar{width:240px}
  .page{margin-left:240px}
}
@media (max-width:1199px){
  .sidebar{width:220px}
  .page{margin-left:220px}
  .container{padding:0 var(--sp-5)}
  h1{font-size:34px}
  .hero h1{font-size:34px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .flow-item:nth-child(2)::after{display:none}
}
@media (max-width:1023px){
  .sidebar{width:84px;padding:var(--sp-5) 10px;align-items:center}
  .page{margin-left:84px}
  .brand-text,.sidebar-nav a span,.sidebar-nav-title,.sidebar-foot p{display:none}
  .sidebar-nav{width:100%}
  .sidebar-nav a{justify-content:center;padding:0}
  .sidebar-nav a:hover{transform:none}
  .sidebar-nav a.active::after{display:none}
  .sidebar-head{width:100%;display:flex;justify-content:center}
  .sidebar-foot{width:100%;align-items:center}
  .sidebar-foot .btn{padding:0;width:48px;height:48px}
  .sidebar-foot .btn span{display:none}
  .hero-inner{grid-template-columns:1fr;gap:var(--sp-6);padding:var(--sp-8) 0}
  .hero-media{aspect-ratio:16/9}
  .guide-grid{grid-template-columns:1fr 1fr}
  .cta-card{grid-template-columns:1fr;padding:var(--sp-6);gap:var(--sp-6)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-6)}
  .row-item{grid-template-columns:160px 1fr;gap:var(--sp-4)}
  .row-thumb{width:160px}
  .row-actions{grid-column:1 / -1;justify-content:flex-start;padding-top:var(--sp-2)}
}
@media (max-width:767px){
  body{font-size:16px}
  .sidebar{
    width:280px;padding:var(--sp-5) var(--sp-4);align-items:stretch;
    transform:translateX(-100%);transition:transform .24s ease-out;
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar .brand-text,.sidebar-nav a span,.sidebar-nav-title,.sidebar-foot p{display:block}
  .sidebar-head{justify-content:flex-start}
  .sidebar-nav a{justify-content:flex-start;padding:0 var(--sp-3)}
  .sidebar-nav a.active::after{display:block}
  .sidebar-foot{align-items:stretch}
  .sidebar-foot .btn{width:100%;height:46px;padding:0 var(--sp-5)}
  .sidebar-foot .btn span{display:inline}
  .page{margin-left:0}
  .topbar{display:flex}
  .overlay{display:block;pointer-events:none}
  .overlay.show{pointer-events:auto}
  .container{padding:0 var(--sp-4)}
  .section{padding:var(--sp-8) 0}
  .hero h1,.hero h1{font-size:28px}
  h2{font-size:24px}
  .hero-inner{padding:var(--sp-7) 0}
  .hero-actions .btn{width:100%}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:var(--sp-3)}
  .metric{padding:var(--sp-4)}
  .metric-value{font-size:30px}
  .guide-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .flow-item::after{display:none}
  .row-item{grid-template-columns:1fr;gap:var(--sp-4);padding:var(--sp-4)}
  .row-thumb{width:100%;aspect-ratio:16/9}
  .row-actions{justify-content:flex-start}
  .field-row{grid-template-columns:1fr}
  .cta-card{padding:var(--sp-5)}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:var(--sp-8)}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category5 */
:root{
  --c-primary:#16443A;
  --c-primary-700:#0F332C;
  --c-primary-400:#3A7A69;
  --c-primary-100:#DCEAE4;
  --c-accent:#C25E36;
  --c-accent-soft:#F6E4D8;
  --c-sand:#D9C9A8;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#17211E;
  --c-ink-2:#4E5A55;
  --c-ink-3:#8B948F;
  --c-line:#E4DED2;
  --c-success:#2F7D5D;
  --c-warn:#B4732A;
  --c-danger:#A5433A;
  --radius:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(20,69,60,.06), 0 8px 24px -12px rgba(20,69,60,.18);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary-400);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;min-height:100vh;}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:264px;
  background:var(--c-primary);
  color:#F7F4EE;
  display:flex;flex-direction:column;
  padding:28px 20px;
  overflow-y:auto;
  z-index:60;
  transition:transform .28s ease;
}
.main-wrap{
  margin-left:264px;
  flex:1;min-width:0;
  display:flex;flex-direction:column;
  min-height:100vh;
}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 32px;}
.content-col{max-width:1120px;}

/* ---------- 侧栏品牌 ---------- */
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:0 4px 22px;border-bottom:1px solid rgba(247,244,238,.14);}
.brand-mark{
  flex:0 0 auto;
  width:40px;height:40px;border-radius:12px;
  background:var(--c-accent);
  color:#FFF8F1;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:20px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-text strong{font-size:16px;font-weight:600;line-height:1.4;color:#FBF9F4;}
.brand-text small{font-size:12px;color:rgba(247,244,238,.62);line-height:1.5;margin-top:2px;}

/* ---------- 侧栏导航 ---------- */
.sidebar-nav-title{
  font-size:12px;letter-spacing:.12em;
  color:rgba(247,244,238,.5);
  margin:24px 0 10px;padding-left:6px;
}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;}
.sidebar-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:48px;padding:0 14px;
  border-radius:var(--radius-btn);
  font-size:14px;
  color:rgba(247,244,238,.8);
  transition:transform .16s ease-out,background .16s ease-out,color .16s ease-out;
}
.sidebar-nav a i{width:18px;text-align:center;font-size:14px;opacity:.9;}
.sidebar-nav a::before{
  content:"";position:absolute;left:-14px;top:50%;
  width:3px;height:0;transform:translateY(-50%);
  background:var(--c-accent);border-radius:0 3px 3px 0;
  transition:height .16s ease-out;
}
.sidebar-nav a:hover{background:rgba(247,244,238,.08);color:#FFFFFF;transform:translateX(4px);}
.sidebar-nav a:hover::before{height:24px;}
.sidebar-nav a.active{background:rgba(247,244,238,.12);color:#FFFFFF;font-weight:500;}
.sidebar-nav a.active::after{
  content:"";position:absolute;right:14px;width:7px;height:7px;border-radius:50%;
  background:var(--c-accent);
}

/* ---------- 侧栏底部 ---------- */
.sidebar-foot{margin-top:auto;padding-top:24px;}
.sidebar-note{font-size:12px;color:rgba(247,244,238,.6);line-height:1.7;margin:12px 0 0;padding-left:4px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:16px;font-weight:500;
  cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.btn-primary{background:var(--c-primary);color:#FBF9F4;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);transform:translateY(-1px);box-shadow:0 10px 22px -14px rgba(15,51,44,.75);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-100);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:rgba(247,244,238,.12);color:#FBF9F4;border-color:rgba(247,244,238,.36);}
.btn-light:hover{background:rgba(247,244,238,.2);}
.btn-block{width:100%;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--radius-btn);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:500;}
.btn-text i{transition:transform .16s ease-out;}
.btn-text:hover i{transform:translateX(3px);}
.btn:disabled{opacity:.4;cursor:not-allowed;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:sticky;top:0;z-index:70;
  align-items:center;justify-content:space-between;gap:12px;
  height:64px;padding:0 16px;
  background:var(--c-primary);
  color:#FBF9F4;
  box-shadow:0 6px 18px -12px rgba(15,51,44,.8);
}
.hamburger{
  width:40px;height:40px;border:1px solid rgba(247,244,238,.32);
  background:transparent;border-radius:var(--radius-btn);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  cursor:pointer;
}
.hamburger span{display:block;width:16px;height:2px;background:#FBF9F4;border-radius:2px;}
.topbar-brand{font-family:var(--font-serif);font-size:16px;font-weight:600;color:#FBF9F4;}
.nav-mask{
  display:none;position:fixed;inset:0;background:rgba(15,51,44,.5);z-index:55;
}
.nav-mask.open{display:block;}

/* ---------- 通用板块 ---------- */
main{flex:1;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:30px;margin-bottom:16px;}
.section-head p{color:var(--c-ink-2);font-size:16px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--c-accent);
  border:1px solid var(--c-accent-soft);background:#FFF8F1;
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.divider{height:1px;background:var(--c-line);border:0;margin:48px 0;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:80px 0 96px;
  background:
    linear-gradient(180deg,rgba(247,244,238,.94),rgba(247,244,238,.98)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;right:-120px;top:-80px;width:520px;height:520px;
  border:1px solid var(--c-sand);border-radius:50% 50% 0 0;
  opacity:.28;pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;
}
.hero h1{font-size:48px;margin-bottom:20px;}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{font-size:18px;color:var(--c-ink-2);max-width:560px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:36px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-2);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:999px;padding:8px 16px;
}
.badge-pill i{color:var(--c-primary-400);font-size:12px;}
.hero-figure{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
  background:var(--c-surface);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;font-size:13px;color:#FBF9F4;
  background:linear-gradient(180deg,rgba(15,51,44,0),rgba(15,51,44,.78));
}

/* ---------- 里程碑带 ---------- */
.milestone-band{
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  background:var(--c-surface);
}
.milestone-track{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:48px 0;
  position:relative;
}
.milestone{
  position:relative;
  padding-right:16px;
}
.milestone::after{
  content:"";position:absolute;top:22px;right:-24px;width:24px;height:1px;background:var(--c-sand);
}
.milestone:last-child::after{display:none;}
.mile-num{
  width:44px;height:44px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-100);color:var(--c-primary);
  font-size:18px;font-weight:600;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.milestone h3{font-size:18px;margin-bottom:8px;}
.milestone p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin:0;}

/* ---------- 图文交错 ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.split + .split{margin-top:80px;}
.split-media{
  border-radius:var(--radius);
  overflow:hidden;border:1px solid var(--c-line);
  box-shadow:var(--shadow);
  aspect-ratio:16/11;background:var(--c-surface);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-body h3{font-size:24px;margin-bottom:16px;}
.split-body p{color:var(--c-ink-2);font-size:16px;}
.split.reverse .split-media{order:2;}
.split.reverse .split-body{order:1;}

.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-ink-2);}
.check-list i{color:var(--c-primary-400);margin-top:6px;font-size:13px;}

/* ---------- 资质徽章网格 ---------- */
.badge-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.badge-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:28px 24px;
  box-shadow:var(--shadow);
  transition:border-color .16s ease-out,transform .16s ease-out;
}
.badge-card:hover{border-color:var(--c-primary-400);transform:translateY(-2px);}
.badge-icon{
  width:48px;height:48px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  background:var(--c-accent-soft);color:var(--c-accent);
  font-size:18px;margin-bottom:20px;
}
.badge-card h3{font-size:18px;margin-bottom:10px;}
.badge-card p{font-size:14px;color:var(--c-ink-2);margin:0;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-sm);
  margin-bottom:16px;
  overflow:hidden;
  transition:border-color .16s ease-out;
}
.faq-item[open]{border-color:var(--c-primary-400);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  font-size:17px;font-weight:500;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-size:22px;line-height:1;color:var(--c-accent);
  transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(240deg);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}

/* ---------- 联系卡 / 表单 ---------- */
.contact-card{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.contact-aside{
  background:var(--c-primary);
  color:#F7F4EE;
  padding:48px 36px;
  display:flex;flex-direction:column;gap:20px;
}
.contact-aside h2{font-size:24px;color:#FBF9F4;}
.contact-aside p{font-size:14px;color:rgba(247,244,238,.78);line-height:1.9;}
.contact-list{display:flex;flex-direction:column;gap:14px;margin-top:8px;}
.contact-list li{display:flex;gap:12px;font-size:14px;color:rgba(247,244,238,.86);align-items:flex-start;}
.contact-list i{margin-top:5px;color:var(--c-accent);font-size:13px;}
.contact-form{padding:48px 40px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:13px;color:var(--c-ink-2);margin-bottom:8px;}
.req::after{content:"●";color:var(--c-accent);font-size:8px;vertical-align:super;margin-left:6px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--radius-btn);
  background:var(--c-bg);font-size:15px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out,background .16s ease-out;
}
.field textarea{height:118px;padding:12px 14px;resize:vertical;line-height:1.8;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:var(--c-surface);
  border-color:var(--c-primary-400);
  box-shadow:0 0 0 2px rgba(58,122,105,.18);
}
.field input:disabled,.field textarea:disabled{opacity:.4;cursor:not-allowed;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-ink-2);margin-bottom:24px;}
.consent input{width:16px;height:16px;margin-top:5px;flex:0 0 auto;accent-color:var(--c-primary);}
.form-note{font-size:12px;color:var(--c-ink-3);margin-top:14px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-primary);
  color:rgba(247,244,238,.82);
  padding:72px 0 28px;
  margin-top:auto;
}
.footer-top{border-top:1px solid rgba(247,244,238,.16);padding-top:56px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--c-accent);}
.footer-brand strong{font-family:var(--font-serif);font-size:18px;color:#FBF9F4;font-weight:600;}
.footer-col h4{font-size:15px;color:#FBF9F4;margin-bottom:18px;font-family:var(--font-sans);font-weight:600;}
.footer-about p{font-size:14px;line-height:1.9;color:rgba(247,244,238,.72);max-width:420px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul li{font-size:14px;color:rgba(247,244,238,.72);}
.footer-col ul li a{transition:color .16s ease-out;}
.footer-col ul li a:hover{color:#FBF9F4;}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(247,244,238,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,244,238,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .sidebar{width:240px;}
  .main-wrap{margin-left:240px;}
}
@media (max-width:1199px){
  .sidebar{width:220px;padding:24px 16px;}
  .sidebar-nav a::before{left:-10px;}
  .hero h1{font-size:38px;}
  .hero-grid{gap:40px;}
  .split{gap:40px;}
  .badge-grid{grid-template-columns:repeat(2,1fr);}
  .milestone-track{grid-template-columns:repeat(2,1fr);gap:32px;}
  .milestone:nth-child(2n)::after{display:none;}
}
@media (max-width:1023px){
  .sidebar{width:84px;padding:20px 12px;align-items:center;}
  .sidebar-brand{justify-content:center;padding:0 0 18px;border-bottom:1px solid rgba(247,244,238,.14);width:100%;}
  .brand-text,.sidebar-nav-title,.sidebar-note{display:none;}
  .sidebar-nav{width:100%;align-items:center;}
  .sidebar-nav a{justify-content:center;padding:0;width:48px;}
  .sidebar-nav a span{display:none;}
  .sidebar-nav a::before{display:none;}
  .sidebar-nav a.active::after{right:6px;top:10px;}
  .sidebar-foot{width:100%;}
  .sidebar-foot .btn{padding:0;width:48px;height:48px;margin:0 auto;}
  .sidebar-foot .btn span{display:none;}
  .main-wrap{margin-left:84px;}
  .section{padding:72px 0;}
  .hero{padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-figure{aspect-ratio:16/9;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media{order:0;}
  .split.reverse .split-body{order:0;}
  .contact-card{grid-template-columns:1fr;}
  .contact-aside{padding:36px 28px;}
  .contact-form{padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .sidebar{
    transform:translateX(-100%);
    width:280px;padding:24px 20px;align-items:stretch;
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar-brand{justify-content:flex-start;padding:0 4px 20px;}
  .brand-text,.sidebar-nav-title,.sidebar-note{display:flex;}
  .sidebar-nav-title{display:block;}
  .sidebar-note{display:block;}
  .sidebar-nav{align-items:stretch;}
  .sidebar-nav a{justify-content:flex-start;padding:0 14px;width:100%;}
  .sidebar-nav a span{display:inline;}
  .sidebar-nav a::before{display:block;left:-14px;}
  .sidebar-nav a.active::after{right:14px;top:50%;transform:translateY(-50%);}
  .sidebar-foot .btn{width:100%;height:46px;padding:0 24px;}
  .sidebar-foot .btn span{display:inline;}
  .main-wrap{margin-left:0;}
  .topbar{display:flex;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-badges{gap:8px;}
  .badge-pill{font-size:12px;padding:6px 12px;}
  .milestone-track{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .milestone::after{display:none;}
  .split + .split{margin-top:56px;}
  .split-body h3{font-size:20px;}
  .badge-grid{grid-template-columns:1fr;gap:16px;}
  .faq-item summary{font-size:16px;padding:18px 18px;}
  .faq-body{padding:0 18px 18px;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .contact-form{padding:28px 20px;}
  .contact-aside{padding:28px 20px;}
  .contact-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}