/* roulang page: index */
:root{
  --brand:#23594E;
  --brand-deep:#14332C;
  --brand-soft:#E6EEE9;
  --accent:#C9773F;
  --bg:#FAF7F1;
  --bg-2:#F2ECE1;
  --card:#FFFFFF;
  --ink:#1B211E;
  --ink-2:#5A655F;
  --line:#E3DACA;
  --muted:#96A09A;
  --radius-lg:14px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(20,51,44,.06);
  --shadow-2:0 1px 2px rgba(20,51,44,.06),0 14px 30px rgba(20,51,44,.08);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
:focus-visible{outline:2px solid rgba(35,89,78,.55);outline-offset:2px;}

/* ============ 布局骨架 ============ */
.app-shell{min-height:100vh;}
.main-wrap{
  margin-left:240px;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
main{flex:1 0 auto;}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 40px;}
.section{padding:72px 0;}
.section + .section{border-top:1px solid var(--line);}

/* ============ 侧边导航 ============ */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:240px;
  background:var(--brand-deep);
  color:#F3EDE2;
  padding:24px 20px;
  display:flex;
  flex-direction:column;
  z-index:100;
}
.brand{display:block;padding:4px 6px 20px;border-bottom:1px solid rgba(247,242,232,.14);}
.brand-main{display:block;font-size:18px;font-weight:600;letter-spacing:.02em;color:#F8F3E9;line-height:1.4;}
.brand-sub{display:block;margin-top:3px;font-size:12px;font-weight:400;letter-spacing:.08em;color:rgba(247,242,232,.66);}
.side-nav-links{display:flex;flex-direction:column;gap:4px;margin-top:20px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;
  height:40px;padding:0 12px 0 16px;
  border-radius:8px;
  font-size:15px;
  color:rgba(247,242,232,.72);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#F8F3E9;}
.nav-item.active{color:#FFFDF8;background:rgba(255,255,255,.05);}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:6px;
  border-radius:3px;background:var(--accent);
}
.nav-item:active{background:rgba(255,255,255,.12);}
.side-contact{
  margin-top:auto;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(247,242,232,.14);
  border-radius:12px;
  padding:16px;
}
.side-contact__title{font-size:13px;font-weight:600;letter-spacing:.04em;color:#F8F3E9;}
.side-contact__line{margin-top:4px;font-size:12.5px;line-height:1.7;color:rgba(247,242,232,.68);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  width:100%;height:36px;margin-top:12px;
  border-radius:8px;
  border:1px solid rgba(247,242,232,.42);
  color:#F8F3E9;font-size:13px;font-weight:500;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(247,242,232,.7);}
.btn-ghost:active{background:rgba(255,255,255,.16);}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{display:none;}
.drawer-overlay{
  position:fixed;inset:0;
  background:rgba(20,51,44,.4);
  opacity:0;pointer-events:none;
  transition:opacity .2s var(--ease);
  z-index:90;
}
.drawer-overlay.is-open{opacity:1;pointer-events:auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),
             border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#F8F3E9;}
.btn-primary:hover{background:#1B4A40;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:rgba(35,89,78,.06);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:8px;}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,78,.3);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;}

/* ============ Hero ============ */
.hero-section{
  background-image:linear-gradient(180deg,rgba(250,247,241,.95),rgba(250,247,241,.99)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
  padding:64px 0 72px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 10px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12.5px;font-weight:600;letter-spacing:.1em;
}
.hero h1{
  margin-top:20px;
  font-size:40px;line-height:1.25;font-weight:700;
  letter-spacing:-.01em;color:var(--brand-deep);
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:26em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-updated{margin-top:18px;font-size:12px;letter-spacing:.02em;color:#8A938D;}
.hero-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-2);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-tag{
  position:absolute;right:14px;bottom:14px;
  background:rgba(20,51,44,.78);color:#F8F3E9;
  font-size:12.5px;letter-spacing:.12em;
  padding:6px 12px;border-radius:6px;
}

/* ============ 板块标题 ============ */
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:26px;font-weight:700;line-height:1.4;color:var(--brand-deep);}
.section-head p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ============ 专题封面 + 目录 ============ */
.directory-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;}
.cover-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow-1);
}
.cover-media{position:relative;border-radius:var(--radius-sm);overflow:hidden;}
.cover-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.cover-num{
  position:absolute;left:12px;top:12px;
  background:var(--accent);color:#FFF8F0;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  padding:4px 10px;border-radius:6px;
}
.cover-card h3{margin-top:18px;font-size:19px;font-weight:600;color:var(--brand-deep);line-height:1.5;}
.cover-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2);}
.toc-list{display:flex;flex-direction:column;}
.toc-row{
  display:flex;align-items:center;gap:16px;
  padding:15px 12px;border-bottom:1px dashed var(--line);border-radius:8px;
  transition:background-color .18s var(--ease);
}
.toc-row:hover{background:var(--bg-2);}
.toc-num{min-width:24px;font-size:13px;font-weight:600;letter-spacing:.06em;color:#A9A297;transition:color .18s var(--ease);}
.toc-row:hover .toc-num{color:var(--accent);}
.toc-title{flex:1;font-size:15.5px;color:var(--ink);}
.toc-count{font-size:12.5px;color:var(--muted);white-space:nowrap;}

/* ============ 最新信息卡片 ============ */
.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(35,89,78,.3);box-shadow:var(--shadow-2);}
.post-card__media{display:block;overflow:hidden;}
.post-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .2s var(--ease);}
.post-card:hover .post-card__media img{transform:scale(1.03);}
.post-card__body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px;}
.badge{
  display:inline-flex;align-items:center;
  height:22px;padding:0 8px;width:fit-content;
  border-radius:6px;background:var(--bg-2);color:var(--ink);
  font-size:12px;font-weight:500;letter-spacing:.02em;
}
.post-card h3{
  font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card h3 a{transition:color .18s var(--ease);}
.post-card h3 a:hover{color:var(--brand);}
.post-card p{
  font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted);
}
.post-card__meta a{color:var(--brand);font-weight:500;}
.post-card__meta a:hover{text-decoration:underline;text-underline-offset:4px;}
.empty-card{
  grid-column:1 / -1;
  padding:48px 20px;
  border:1px dashed var(--line);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.5);
  text-align:center;font-size:14.5px;color:var(--ink-2);
}

/* ============ 精选条目 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.feature-card{
  grid-column:span 5;
  display:flex;flex-direction:column;gap:12px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.feature-card:hover{border-color:rgba(35,89,78,.3);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.feature-card--wide{
  grid-column:span 7;grid-row:span 2;
  padding:32px;
  background:var(--bg-2);border-color:transparent;
}
.feature-card--wide:hover{border-color:rgba(35,89,78,.22);}
.feature-index{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--accent);}
.feature-card h3{font-size:20px;font-weight:600;line-height:1.45;color:var(--brand-deep);}
.feature-card--wide h3{font-size:24px;}
.feature-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2);}
.feature-arrow{
  margin-top:auto;padding-top:12px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--brand);
}

/* ============ 渠道概览 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.channel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.channel-card:hover{border-color:rgba(35,89,78,.3);box-shadow:var(--shadow-2);}
.channel-k{font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--muted);}
.channel-v{margin-top:10px;font-size:17px;font-weight:600;line-height:1.5;color:var(--brand-deep);}
.channel-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-2);}

/* ============ 相关推荐 ============ */
.related-list{border-top:1px solid var(--line);}
.related-row{
  display:flex;align-items:center;gap:16px;
  min-height:52px;padding:14px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s var(--ease);
}
.related-row:hover{background:var(--bg-2);}
.related-dot{flex:none;width:8px;height:8px;border-radius:50%;background:var(--accent);}
.related-title{flex:1;font-size:15px;color:var(--ink);transition:color .18s var(--ease);}
.related-row:hover .related-title{color:var(--brand);}
.related-date{font-size:12.5px;color:var(--muted);white-space:nowrap;}

/* ============ 收藏 / 分享条带 ============ */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--bg-2);
  border:1px solid rgba(227,218,202,.75);
  border-radius:var(--radius-lg);
  padding:28px;
}
.cta-strip h2{font-size:20px;font-weight:700;color:var(--brand-deep);}
.cta-strip p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--ink-2);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ FAQ ============ */
.faq-list{max-width:820px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;flex:none;width:20px;height:20px;transition:transform .2s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:1px;}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a__inner{
  padding:0 0 20px 16px;
  border-left:3px solid var(--brand);
  font-size:15px;line-height:1.85;color:var(--ink-2);
  max-width:720px;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(247,242,232,.72);margin-top:72px;}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding:56px 0 40px;}
.footer-brand-name{font-size:18px;font-weight:600;color:#F8F3E9;line-height:1.4;}
.footer-brand-sub{margin-top:3px;font-size:12px;letter-spacing:.08em;color:rgba(247,242,232,.6);}
.footer-desc{margin-top:14px;font-size:13.5px;line-height:1.9;max-width:32em;color:rgba(247,242,232,.66);}
.footer-title{margin-bottom:12px;font-size:13px;font-weight:600;letter-spacing:.1em;color:#F8F3E9;}
.footer-links a{
  display:block;font-size:14px;line-height:32px;
  color:rgba(247,242,232,.72);
  transition:color .2s var(--ease);
}
.footer-links a:hover{color:#FFFDF8;}
.footer-links a:focus-visible{outline:2px solid rgba(201,119,63,.85);outline-offset:3px;}
.footer-info p{font-size:13.5px;line-height:32px;color:rgba(247,242,232,.72);}
.footer-info .domain{color:#F8F3E9;font-weight:500;letter-spacing:.02em;}
.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(247,242,232,.14);
  font-size:12.5px;color:rgba(247,242,232,.55);
}

/* ============ 响应式 ============ */
@media (min-width:1280px){
  .post-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:1023px){
  .side-nav{
    transform:translateX(-100%);
    transition:transform .22s ease-out;
    box-shadow:0 20px 40px rgba(20,51,44,.24);
  }
  .side-nav.is-open{transform:translateX(0);}
  .mobile-bar{
    position:fixed;top:0;left:0;right:0;height:64px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:0 20px;background:var(--brand-deep);z-index:95;
  }
  .mobile-brand{font-size:15px;font-weight:600;color:#F8F3E9;letter-spacing:.02em;}
  .menu-btn{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:8px;
    border:1px solid rgba(247,242,232,.3);color:#F8F3E9;
    transition:background-color .2s var(--ease);
  }
  .menu-btn:hover{background:rgba(255,255,255,.1);}
  .main-wrap{margin-left:0;padding-top:64px;}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .hero{padding:44px 0 52px;gap:36px;}
  .hero h1{font-size:32px;}
  .directory-grid{grid-template-columns:1fr;gap:32px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card,.feature-card--wide{grid-column:span 1;grid-row:auto;}
  .channel-grid{grid-template-columns:1fr;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px;}
  .site-footer{margin-top:48px;}
}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:639px){
  .post-grid{grid-template-columns:1fr;}
  .footer-main{grid-template-columns:1fr;}
  .section-head h2{font-size:22px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .cta-strip{padding:22px;}
  .cta-actions .btn{flex:1;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .section{padding:40px 0;}
  .hero-actions .btn{flex:1;}
}
@media (prefers-reduced-motion: reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .post-card:hover{transform:none;}
  .post-card:hover .post-card__media img{transform:none;}
  .feature-card:hover{transform:none;}
}

/* roulang page: category1 */
:root {
    --brand: #23594E;
    --brand-deep: #14332C;
    --brand-soft: #E6EEE9;
    --accent: #C9773F;
    --bg: #FAF7F1;
    --bg-2: #F2ECE1;
    --card: #FFFFFF;
    --ink: #1B211E;
    --ink-2: #5A655F;
    --line: #E3DACA;
    --radius-card: 14px;
    --radius-soft: 10px;
    --radius-badge: 6px;
    --shadow-1: 0 1px 2px rgba(20, 51, 44, .06), 0 8px 24px rgba(20, 51, 44, .05);
    --shadow-2: 0 2px 6px rgba(20, 51, 44, .10), 0 14px 32px rgba(20, 51, 44, .10);
    --sidebar-w: 240px;
    --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; }

  html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

  body {
    margin: 0;
    font-family: var(--font-cn);
    background: var(--bg);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.85;
    font-variant-numeric: tabular-nums;
    -webkit-font-smoothing: antialiased;
  }

  img { max-width: 100%; display: block; }

  a { color: var(--brand); text-decoration: none; transition: color .18s ease-out; }

  a:hover { color: var(--brand-deep); }

  button { font-family: inherit; cursor: pointer; }

  input, select, textarea { font-family: inherit; }

  h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.35; color: var(--ink); }

  p { margin: 0; }

  ul { margin: 0; padding: 0; list-style: none; }

  :focus-visible {
    outline: 3px solid rgba(35, 89, 78, .38);
    outline-offset: 2px;
    border-radius: 4px;
  }

  /* ---------- App shell ---------- */
  .app-shell { display: flex; min-height: 100vh; }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-w);
    background: var(--brand-deep);
    color: rgba(250, 247, 241, .78);
    padding: 26px 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 26px;
    z-index: 80;
    overflow-y: auto;
  }

  .brand { display: block; padding: 4px 4px 18px; border-bottom: 1px solid rgba(250, 247, 241, .12); }

  .brand-main {
    display: block;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: .02em;
    color: #FAF7F1;
    line-height: 1.4;
  }

  .brand-sub {
    display: block;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: .08em;
    color: rgba(250, 247, 241, .66);
    margin-top: 2px;
  }

  .side-nav-links { display: flex; flex-direction: column; gap: 4px; }

  .nav-item {
    position: relative;
    display: flex;
    align-items: center;
    height: 40px;
    padding: 0 12px 0 16px;
    font-size: 15px;
    color: rgba(250, 247, 241, .70);
    border-radius: 8px;
    transition: background .18s ease-out, color .18s ease-out;
  }

  .nav-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 9px;
    bottom: 9px;
    width: 3px;
    border-radius: 2px;
    background: transparent;
    transition: background .18s ease-out;
  }

  .nav-item:hover { background: rgba(250, 247, 241, .08); color: #FAF7F1; }

  .nav-item.active { color: #FAF7F1; font-weight: 600; }

  .nav-item.active::before { background: var(--accent); }

  .side-contact {
    margin-top: auto;
    background: rgba(250, 247, 241, .07);
    border: 1px solid rgba(250, 247, 241, .12);
    border-radius: 12px;
    padding: 16px;
  }

  .side-contact h2 {
    font-size: 13px;
    font-weight: 600;
    color: #FAF7F1;
    letter-spacing: .04em;
    margin-bottom: 8px;
  }

  .side-contact p {
    font-size: 12.5px;
    line-height: 1.8;
    color: rgba(250, 247, 241, .68);
  }

  .side-contact .btn-outline-light { margin-top: 12px; }

  .btn-outline-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 34px;
    padding: 0 14px;
    font-size: 13px;
    color: #FAF7F1;
    background: transparent;
    border: 1px solid rgba(250, 247, 241, .42);
    border-radius: 8px;
    transition: background .18s ease-out, border-color .18s ease-out, transform .18s ease-out;
  }

  .btn-outline-light:hover { background: rgba(250, 247, 241, .14); border-color: rgba(250, 247, 241, .7); color: #FAF7F1; }

  .btn-outline-light:active { transform: translateY(1px); }

  /* ---------- Mobile topbar ---------- */
  .mobile-topbar {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--brand-deep);
    color: #FAF7F1;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    z-index: 90;
  }

  .mobile-brand {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .02em;
    color: #FAF7F1;
  }

  .mobile-brand span { font-weight: 400; font-size: 12px; color: rgba(250, 247, 241, .68); margin-left: 6px; letter-spacing: .06em; }

  .hamburger {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid rgba(250, 247, 241, .28);
    border-radius: 9px;
    color: #FAF7F1;
    transition: background .18s ease-out;
  }

  .hamburger:hover { background: rgba(250, 247, 241, .12); }

  .hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    position: relative;
  }

  .hamburger span::before,
  .hamburger span::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
  }

  .hamburger span::before { top: -6px; }

  .hamburger span::after { top: 6px; }

  .overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 51, 44, .42);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease-out;
    z-index: 70;
  }

  .overlay.show { opacity: 1; pointer-events: auto; }

  /* ---------- Main area ---------- */
  .main-area {
    margin-left: var(--sidebar-w);
    width: calc(100% - var(--sidebar-w));
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }

  .container {
    width: 100%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 40px;
  }

  .page-top { padding-top: 48px; }

  .section { margin-top: 64px; }

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
  }

  .section-title { font-size: 23px; font-weight: 700; letter-spacing: .01em; }

  .section-note { font-size: 14px; color: var(--ink-2); }

  /* ---------- Band ---------- */
  .page-band {
    position: relative;
    border-radius: var(--radius-card);
    overflow: hidden;
    padding: 34px 36px 30px;
    color: #FAF7F1;
    background-image: linear-gradient(102deg, rgba(20, 51, 44, .94) 0%, rgba(35, 89, 78, .78) 58%, rgba(35, 89, 78, .58) 100%), url(/assets/images/backpic/back-1.png);
    background-size: cover;
    background-position: center;
    box-shadow: var(--shadow-1);
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(250, 247, 241, .72);
    margin-bottom: 16px;
  }

  .breadcrumb a { color: rgba(250, 247, 241, .82); }

  .breadcrumb a:hover { color: #FAF7F1; text-decoration: underline; text-underline-offset: 4px; }

  .breadcrumb .sep { color: rgba(250, 247, 241, .45); }

  .page-band h1 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.35;
    color: #FAF7F1;
    max-width: 760px;
  }

  .band-sub {
    margin-top: 12px;
    font-size: 15px;
    line-height: 1.8;
    color: rgba(250, 247, 241, .82);
    max-width: 700px;
  }

  /* ---------- Chips ---------- */
  .chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
  }

  .chip {
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 18px;
    font-size: 14px;
    color: var(--ink);
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: 999px;
    transition: background .18s ease-out, color .18s ease-out, border-color .18s ease-out, transform .18s ease-out;
  }

  .chip:hover { border-color: rgba(35, 89, 78, .45); color: var(--brand-deep); transform: translateY(-1px); }

  .chip.active { background: var(--brand); color: #FAF7F1; border-color: var(--brand); }

  .chip.active:hover { color: #FAF7F1; }

  /* ---------- Split layout ---------- */
  .split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 318px;
    gap: 32px;
    align-items: start;
  }

  .dir-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .dir-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 20px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    transition: border-color .18s ease-out, box-shadow .18s ease-out, transform .18s ease-out;
  }

  .dir-item:hover {
    border-color: rgba(35, 89, 78, .45);
    box-shadow: var(--shadow-1);
    transform: translateY(-2px);
  }

  .dir-num {
    flex: 0 0 auto;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: .04em;
    padding-top: 2px;
  }

  .dir-body { flex: 1 1 auto; min-width: 0; }

  .dir-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.5;
  }

  .dir-title .arrow {
    color: var(--ink-2);
    font-size: 14px;
    transition: color .18s ease-out, transform .18s ease-out;
  }

  .dir-item:hover .dir-title .arrow { color: var(--brand); transform: translateX(3px); }

  .dir-desc {
    margin-top: 6px;
    font-size: 13.5px;
    line-height: 1.75;
    color: var(--ink-2);
  }

  /* ---------- Side card ---------- */
  .side-card {
    position: sticky;
    top: 24px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 22px;
    box-shadow: var(--shadow-1);
  }

  .side-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
  }

  .side-card .side-lead {
    font-size: 13px;
    color: var(--ink-2);
    line-height: 1.7;
    margin-bottom: 14px;
  }

  .kv-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 11px 0;
    border-bottom: 1px dashed var(--line);
    font-size: 13.5px;
  }

  .kv-row:last-of-type { border-bottom: 0; }

  .kv-key { color: var(--ink-2); flex: 0 0 auto; }

  .kv-val { color: var(--ink); font-weight: 600; text-align: right; }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 22px;
    font-size: 15px;
    font-weight: 600;
    color: #FAF7F1;
    background: var(--brand);
    border: 1px solid var(--brand);
    border-radius: var(--radius-soft);
    transition: background .18s ease-out, transform .18s ease-out, box-shadow .18s ease-out;
  }

  .btn-primary:hover { background: #1B4A40; border-color: #1B4A40; color: #FAF7F1; transform: translateY(-1px); box-shadow: var(--shadow-1); }

  .btn-primary:active { transform: translateY(1px); box-shadow: none; }

  .btn-primary:disabled, .btn-primary[aria-disabled="true"] { opacity: .45; transform: none; cursor: not-allowed; box-shadow: none; }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--brand);
    background: transparent;
    border: 1px solid var(--brand);
    border-radius: var(--radius-soft);
    transition: background .18s ease-out, color .18s ease-out, transform .18s ease-out;
  }

  .btn-ghost:hover { background: rgba(35, 89, 78, .07); color: var(--brand-deep); transform: translateY(-1px); }

  .btn-ghost:active { transform: translateY(1px); }

  .btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

  .side-card .btn-primary { width: 100%; margin-top: 16px; }

  .side-tip {
    margin-top: 10px;
    font-size: 12px;
    line-height: 1.7;
    color: var(--ink-2);
  }

  /* ---------- Steps ---------- */
  .steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-1);
  }

  .step {
    padding: 26px 22px;
    border-right: 1px solid var(--line);
    transition: background .18s ease-out;
  }

  .step:last-child { border-right: 0; }

  .step:hover { background: #FCFAF6; }

  .step-num {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--accent);
  }

  .step h3 {
    font-size: 16.5px;
    font-weight: 600;
    margin: 10px 0 8px;
  }

  .step p { font-size: 13.5px; line-height: 1.8; color: var(--ink-2); }

  /* ---------- Scene ---------- */
  .scene {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 36px;
    align-items: center;
  }

  .scene-media {
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-1);
    background: var(--bg-2);
  }

  .scene-media img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

  .scene-list { display: flex; flex-direction: column; gap: 2px; }

  .scene-item {
    display: flex;
    gap: 14px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }

  .scene-item:last-child { border-bottom: 0; }

  .list-dot {
    flex: 0 0 auto;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand);
    margin-top: 10px;
  }

  .scene-item h4 {
    font-size: 15.5px;
    font-weight: 600;
    margin-bottom: 4px;
  }

  .scene-item p { font-size: 14px; line-height: 1.8; color: var(--ink-2); }

  /* ---------- FAQ ---------- */
  .faq-list {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 6px 24px;
    box-shadow: var(--shadow-1);
  }

  .faq-item { border-bottom: 1px solid var(--line); }

  .faq-item:last-child { border-bottom: 0; }

  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    padding: 20px 0;
    background: transparent;
    border: 0;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    transition: color .18s ease-out;
  }

  .faq-q:hover { color: var(--brand); }

  .faq-q:focus-visible { outline: 3px solid rgba(35, 89, 78, .3); outline-offset: 3px; }

  .faq-icon {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    position: relative;
    transition: transform .2s ease-out;
  }

  .faq-icon::before, .faq-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    background: var(--brand);
    border-radius: 2px;
    transform: translate(-50%, -50%);
  }

  .faq-icon::before { width: 14px; height: 2px; }

  .faq-icon::after { width: 2px; height: 14px; }

  .faq-item.open .faq-icon { transform: rotate(45deg); }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .2s ease-out;
  }

  .faq-a-inner {
    border-left: 3px solid var(--brand);
    padding: 0 0 20px 16px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--ink-2);
  }

  /* ---------- CTA strip ---------- */
  .cta-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 28px 30px;
  }

  .cta-strip h2 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }

  .cta-strip p { font-size: 14px; color: var(--ink-2); line-height: 1.8; max-width: 620px; }

  /* ---------- Footer ---------- */
  .site-footer {
    margin-top: 72px;
    background: var(--brand-deep);
    color: rgba(250, 247, 241, .82);
    padding: 52px 0 0;
  }

  .footer-main {
    display: grid;
    grid-template-columns: 1.5fr .8fr 1fr;
    gap: 40px;
    padding-bottom: 34px;
  }

  .footer-brand-name {
    font-size: 18px;
    font-weight: 600;
    color: #FAF7F1;
    line-height: 1.4;
  }

  .footer-brand-sub {
    font-size: 12px;
    letter-spacing: .08em;
    color: rgba(250, 247, 241, .64);
    margin: 2px 0 12px;
  }

  .footer-desc {
    font-size: 14px;
    line-height: 1.85;
    color: rgba(250, 247, 241, .74);
    max-width: 420px;
  }

  .footer-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .06em;
    color: #FAF7F1;
    margin-bottom: 10px;
  }

  .footer-links a {
    display: block;
    line-height: 32px;
    font-size: 14px;
    color: rgba(250, 247, 241, .78);
  }

  .footer-links a:hover { color: #FAF7F1; text-decoration: underline; text-underline-offset: 4px; }

  .footer-info p { font-size: 14px; line-height: 32px; color: rgba(250, 247, 241, .76); }

  .footer-info .domain { color: #FAF7F1; }

  .footer-bottom {
    border-top: 1px solid rgba(250, 247, 241, .14);
    padding: 18px 0 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 13px;
    color: rgba(250, 247, 241, .58);
  }

  /* ---------- Responsive ---------- */
  @media (max-width: 1279px) {
    .container { padding: 0 32px; }
    .split { grid-template-columns: minmax(0, 1fr) 290px; gap: 26px; }
    .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .step:nth-child(2) { border-right: 0; }
    .step:nth-child(1), .step:nth-child(2) { border-bottom: 1px solid var(--line); }
  }

  @media (max-width: 1023px) {
    .mobile-topbar { display: flex; }
    .main-area { margin-left: 0; width: 100%; padding-top: 64px; }
    .sidebar {
      transform: translateX(-100%);
      transition: transform .22s ease-out;
      width: 280px;
      box-shadow: 0 0 40px rgba(20, 51, 44, .28);
    }
    .sidebar.open { transform: translateX(0); }
    .page-top { padding-top: 28px; }
    .split { grid-template-columns: minmax(0, 1fr); }
    .side-card { position: static; }
    .scene { grid-template-columns: 1fr; gap: 26px; }
    .scene-media img { aspect-ratio: 16 / 10; }
    .footer-main { grid-template-columns: 1fr 1fr; gap: 30px; }
    .footer-desc { max-width: none; }
    .section { margin-top: 52px; }
    .site-footer { margin-top: 52px; }
  }

  @media (max-width: 767px) {
    .container { padding: 0 20px; }
    .page-band { padding: 26px 22px 24px; }
    .page-band h1 { font-size: 25px; }
    .band-sub { font-size: 14px; }
    .dir-grid { grid-template-columns: minmax(0, 1fr); }
    .steps { grid-template-columns: minmax(0, 1fr); }
    .step { border-right: 0; border-bottom: 1px solid var(--line); }
    .step:last-child { border-bottom: 0; }
    .section-title { font-size: 20px; }
    .faq-list { padding: 4px 18px; }
    .cta-strip { padding: 22px 20px; }
    .footer-main { grid-template-columns: minmax(0, 1fr); }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
  }

  @media (max-width: 520px) {
    .page-band h1 { font-size: 22px; }
    .chip { height: 34px; padding: 0 14px; font-size: 13px; }
    .btn-primary, .btn-ghost { width: 100%; }
    .side-card .btn-primary { width: 100%; }
    .cta-strip .btn-row { width: 100%; }
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
      transition-duration: .01ms !important;
      animation-duration: .01ms !important;
    }
    .dir-item:hover, .btn-primary:hover, .btn-ghost:hover, .chip:hover { transform: none; }
  }

/* roulang page: article */
:root{
    --brand:#23594E;
    --brand-deep:#14332C;
    --brand-mid:#1B4A40;
    --brand-soft:#E6EEE9;
    --accent:#C9773F;
    --bg:#FAF7F1;
    --bg-2:#F2ECE1;
    --card:#FFFFFF;
    --ink:#1B211E;
    --ink-2:#5A655F;
    --line:#E3DACA;
    --radius:14px;
    --radius-sm:10px;
    --shadow-1:0 1px 2px rgba(20,51,44,.06), 0 8px 24px rgba(20,51,44,.05);
    --shadow-2:0 2px 6px rgba(20,51,44,.10), 0 16px 34px rgba(20,51,44,.10);
    --nav-w:240px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  [hidden]{display:none !important}
  ::selection{background:rgba(35,89,78,.16)}

  .skip-link{
    position:absolute;left:16px;top:-60px;z-index:200;
    background:var(--brand);color:#FAF7F1;padding:10px 18px;border-radius:0 0 10px 10px;
    font-size:14px;transition:top .2s ease-out;
  }
  .skip-link:focus{top:0}

  .container{max-width:1160px;margin:0 auto;padding:0 40px}

  /* ---------- 侧栏 App Shell ---------- */
  .side-shell{
    position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
    background:var(--brand-deep);
    padding:24px;
    display:flex;flex-direction:column;gap:26px;
    z-index:60;
    overflow-y:auto;
  }
  .brand-link{display:flex;flex-direction:column;gap:2px}
  .brand-main{
    font-size:18px;font-weight:600;line-height:1.35;
    color:#FAF7F1;letter-spacing:.02em;
  }
  .brand-sub{
    font-size:12px;font-weight:400;letter-spacing:.08em;
    color:rgba(250,247,241,.62);
  }
  .side-nav-links{display:flex;flex-direction:column;gap:4px;margin-top:2px}
  .nav-item{
    position:relative;
    display:block;
    padding:10px 12px 10px 16px;
    border-radius:8px;
    font-size:14.5px;
    color:rgba(250,247,241,.7);
    transition:background .2s ease-out,color .2s ease-out;
  }
  .nav-item::before{
    content:"";
    position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;
    background:transparent;transition:background .2s ease-out;
  }
  .nav-item:hover{background:rgba(250,247,241,.08);color:#FAF7F1}
  .nav-item:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,119,63,.45)}
  .nav-item.active{background:rgba(250,247,241,.06);color:#FAF7F1;font-weight:600}
  .nav-item.active::before{background:var(--accent)}

  .side-contact{
    margin-top:auto;
    background:rgba(250,247,241,.07);
    border:1px solid rgba(250,247,241,.13);
    border-radius:12px;
    padding:16px;
  }
  .side-contact-title{
    font-size:13px;font-weight:600;letter-spacing:.08em;
    color:#FAF7F1;margin:0 0 8px;
  }
  .side-contact p{margin:0;font-size:12.5px;line-height:1.9;color:rgba(250,247,241,.66)}
  .side-contact-link{
    display:inline-flex;align-items:center;justify-content:center;
    height:34px;padding:0 14px;margin-top:12px;
    border:1px solid rgba(250,247,241,.4);border-radius:8px;
    font-size:13px;color:#FAF7F1;
    transition:background .2s ease-out,border-color .2s ease-out;
  }
  .side-contact-link:hover{background:rgba(250,247,241,.12);border-color:rgba(250,247,241,.7)}
  .side-contact-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,119,63,.45)}

  /* ---------- 移动端顶部栏 ---------- */
  .mobile-bar{
    display:none;
    position:fixed;top:0;left:0;right:0;height:64px;
    align-items:center;justify-content:space-between;
    padding:0 16px;
    background:var(--brand-deep);
    z-index:50;
    box-shadow:0 1px 0 rgba(250,247,241,.08);
  }
  .mobile-brand{
    font-size:15px;font-weight:600;color:#FAF7F1;letter-spacing:.02em;
    max-width:70%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .menu-btn{
    width:44px;height:44px;flex:none;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    background:transparent;border:1px solid rgba(250,247,241,.25);border-radius:10px;
    cursor:pointer;transition:border-color .2s ease-out,background .2s ease-out;
  }
  .menu-btn:hover{background:rgba(250,247,241,.08);border-color:rgba(250,247,241,.5)}
  .menu-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,119,63,.5)}
  .menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:#FAF7F1;transition:transform .2s ease-out,opacity .2s ease-out}
  .menu-btn.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-btn.is-active span:nth-child(2){opacity:0}
  .menu-btn.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .nav-mask{
    position:fixed;inset:0;background:rgba(20,51,44,.4);
    z-index:55;display:none;
  }
  .nav-mask.is-open{display:block}

  .page-main{margin-left:var(--nav-w);padding-top:48px}

  /* ---------- 面包屑 & 文章头 ---------- */
  .crumb{
    display:flex;align-items:center;gap:10px;
    font-size:13px;color:var(--ink-2);
    min-width:0;
  }
  .crumb a{color:var(--ink-2);transition:color .2s ease-out;flex:none}
  .crumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
  .crumb a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,78,.3);border-radius:4px}
  .crumb-sep{width:1px;height:12px;background:var(--line);flex:none}
  .crumb-cat{flex:none;color:var(--brand);font-weight:600}
  .crumb-current{
    min-width:0;flex:1;
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
    color:var(--ink-2);
  }

  .article-head{padding-top:36px}
  .article-title{
    margin:20px 0 0;
    font-size:34px;line-height:1.35;font-weight:700;
    color:var(--brand-deep);
    letter-spacing:-.005em;
    max-width:860px;
  }
  .article-meta{
    display:flex;align-items:center;flex-wrap:wrap;gap:10px;
    margin-top:16px;font-size:13px;color:var(--ink-2);
  }
  .badge{
    display:inline-flex;align-items:center;height:22px;padding:0 8px;
    border-radius:6px;background:var(--brand-soft);color:var(--brand);
    font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .meta-dot{width:4px;height:4px;border-radius:50%;background:#C4CBC5;flex:none}
  .meta-read{display:inline-flex;align-items:center;gap:10px}

  /* ---------- 阅读提示 ---------- */
  .read-hint{
    display:flex;gap:14px;align-items:flex-start;
    margin-top:28px;padding:16px 18px;
    background:var(--brand-soft);
    border:1px solid rgba(35,89,78,.12);
    border-radius:12px;
  }
  .read-hint-tag{
    flex:none;display:inline-flex;align-items:center;height:22px;padding:0 8px;
    border-radius:6px;background:var(--brand);color:#FAF7F1;
    font-size:12px;font-weight:600;
  }
  .read-hint p{margin:0;font-size:14px;line-height:1.8;color:var(--brand-deep)}

  /* ---------- 文章布局 ---------- */
  .article-layout{
    display:grid;
    grid-template-columns:minmax(0,760px) 200px;
    gap:56px;
    align-items:start;
    margin-top:32px;
  }
  .article-main{min-width:0}
  .article-cover{margin:0 0 30px}
  .article-cover img{
    width:100%;border-radius:14px;object-fit:cover;
    aspect-ratio:16/9;
    box-shadow:var(--shadow-1);
  }
  .article-cover figcaption{
    margin-top:10px;font-size:12.5px;color:var(--ink-2);line-height:1.7;
  }

  /* ---------- 正文排版 ---------- */
  .prose-cn{
    font-size:17px;line-height:1.9;color:var(--ink);
    overflow-wrap:anywhere;
  }
  .prose-cn > *:first-child{margin-top:0}
  .prose-cn h2{
    font-size:24px;line-height:1.45;font-weight:700;
    color:var(--brand-deep);
    margin:32px 0 16px;
  }
  .prose-cn h3{
    font-size:19px;line-height:1.5;font-weight:600;
    color:var(--brand-deep);
    margin:26px 0 12px;
  }
  .prose-cn h4{font-size:17px;font-weight:600;color:var(--brand-deep);margin:22px 0 10px}
  .prose-cn p{margin:0 0 1.1em}
  .prose-cn ul,.prose-cn ol{margin:0 0 1.2em;padding-left:1.4em;line-height:1.85}
  .prose-cn ul{list-style:disc}
  .prose-cn ol{list-style:decimal}
  .prose-cn li{margin:6px 0}
  .prose-cn blockquote{
    margin:22px 0;padding:16px 20px;
    border-left:3px solid var(--brand);
    background:var(--bg-2);
    border-radius:0 10px 10px 0;
    color:var(--ink-2);
  }
  .prose-cn blockquote p:last-child{margin-bottom:0}
  .prose-cn a{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
  .prose-cn a:hover{color:var(--brand-mid)}
  .prose-cn img{max-width:100%;height:auto;border-radius:10px;margin:12px 0}
  .prose-cn strong{color:var(--brand-deep)}
  .prose-cn hr{border:none;border-top:1px solid var(--line);margin:32px 0}
  .prose-cn table{
    width:100%;max-width:100%;display:block;overflow-x:auto;
    border-collapse:collapse;font-size:15px;line-height:1.75;
    margin:20px 0;
  }
  .prose-cn th{
    background:var(--bg-2);text-align:left;font-weight:600;
    padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap;
  }
  .prose-cn td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}

  .empty-note{
    border:1px dashed var(--line);
    background:var(--card);
    border-radius:var(--radius);
    padding:40px 24px;
    text-align:center;
  }
  .empty-note p{margin:0 0 10px;color:var(--ink-2);font-size:15px}
  .empty-note p:first-child{font-size:20px;font-weight:700;color:var(--brand-deep)}

  /* ---------- 目录 ---------- */
  .toc-rail{position:sticky;top:24px}
  .toc-title{
    margin:0 0 12px;font-size:13px;font-weight:600;
    letter-spacing:.08em;color:var(--ink-2);
  }
  .toc-list{list-style:none;margin:0;padding:0}
  .toc-list a{
    display:block;
    padding:6px 0 6px 12px;
    border-left:2px solid var(--line);
    font-size:13.5px;line-height:1.6;color:var(--ink-2);
    transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
  }
  .toc-list a:hover{color:var(--brand);border-left-color:rgba(35,89,78,.5)}
  .toc-list a.is-active{
    color:var(--brand);font-weight:600;
    border-left-color:var(--brand);
    background:linear-gradient(90deg,rgba(35,89,78,.06),transparent);
  }
  .toc-list a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,78,.28)}

  /* ---------- 相关推荐 ---------- */
  .related-block{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
  .section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}
  .section-head h2{
    margin:0;font-size:22px;font-weight:700;color:var(--brand-deep);line-height:1.4;
  }
  .section-head .head-note{font-size:13px;color:var(--ink-2)}
  .related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .related-card{
    display:flex;flex-direction:column;gap:8px;
    padding:18px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  }
  .related-card:hover{
    transform:translateY(-2px);
    border-color:rgba(35,89,78,.35);
    box-shadow:var(--shadow-1);
  }
  .related-card:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,78,.28)}
  .related-cat{
    font-size:12px;font-weight:600;color:var(--accent);letter-spacing:.04em;
  }
  .related-card h3{
    margin:0;font-size:15.5px;font-weight:600;line-height:1.55;color:var(--brand-deep);
  }
  .related-note{font-size:13px;color:var(--ink-2);line-height:1.7}
  .related-foot{margin-top:auto;font-size:12.5px;color:#8A938D}

  /* ---------- CTA ---------- */
  .contact-strip{
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    margin-top:32px;padding:28px;
    background:var(--bg-2);
    border-radius:var(--radius);
    border:1px solid rgba(227,218,202,.9);
  }
  .contact-strip h2{margin:0 0 6px;font-size:20px;font-weight:700;color:var(--brand-deep);line-height:1.4}
  .contact-strip p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.8}
  .contact-strip-actions{display:flex;gap:12px;flex:none;flex-wrap:wrap}
  .back-row{margin-top:28px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;
    border-radius:var(--radius-sm);
    border:1px solid transparent;
    font-size:15px;font-weight:600;
    cursor:pointer;
    transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
  }
  .btn-primary{background:var(--brand);color:#FAF7F1}
  .btn-primary:hover{background:var(--brand-mid);transform:translateY(1px);box-shadow:var(--shadow-1)}
  .btn-primary:active{transform:translateY(2px);box-shadow:none}
  .btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
  .btn-ghost:hover{background:rgba(35,89,78,.06);border-color:var(--brand-mid)}
  .btn-ghost:active{background:rgba(35,89,78,.12)}
  .btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,78,.3)}
  .btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;box-shadow:none}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:72px;
    background:var(--brand-deep);
    color:rgba(250,247,241,.78);
    padding:56px 0 26px;
  }
  .footer-main{display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:40px}
  .footer-brand-name{margin:0;font-size:18px;font-weight:600;color:#FAF7F1;letter-spacing:.02em}
  .footer-brand-sub{margin:2px 0 0;font-size:12px;letter-spacing:.12em;color:rgba(250,247,241,.6)}
  .footer-desc{margin:14px 0 0;font-size:14px;line-height:1.9;max-width:420px;color:rgba(250,247,241,.72)}
  .footer-title{margin:0 0 12px;font-size:13px;font-weight:600;letter-spacing:.1em;color:rgba(250,247,241,.55)}
  .footer-links a{
    display:block;font-size:14px;line-height:32px;
    color:rgba(250,247,241,.8);
    transition:color .2s ease-out;
    width:fit-content;
  }
  .footer-links a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:4px}
  .footer-links a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(201,119,63,.5);border-radius:4px}
  .footer-info p{margin:0;font-size:14px;line-height:32px;color:rgba(250,247,241,.72)}
  .footer-info .domain{color:#FAF7F1}
  .footer-bottom{
    margin-top:34px;padding-top:20px;
    border-top:1px solid rgba(250,247,241,.12);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:12.5px;color:rgba(250,247,241,.55);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .article-layout{grid-template-columns:minmax(0,1fr)}
    .toc-rail{display:none}
  }
  @media (max-width:1023px){
    .mobile-bar{display:flex}
    .side-shell{
      width:280px;
      transform:translateX(-100%);
      transition:transform .22s ease-out;
      box-shadow:0 0 40px rgba(20,51,44,.28);
    }
    .side-shell.is-open{transform:translateX(0)}
    .page-main{margin-left:0;padding-top:88px}
    .container{padding:0 20px}
    .footer-main{grid-template-columns:1fr 1fr;gap:32px}
    .footer-main > div:first-child{grid-column:1 / -1}
    .contact-strip{flex-direction:column;align-items:flex-start}
  }
  @media (max-width:767px){
    body{font-size:15.5px}
    .article-head{padding-top:24px}
    .article-title{font-size:26px;margin-top:16px}
    .prose-cn{font-size:16px}
    .prose-cn h2{font-size:21px;margin:28px 0 14px}
    .prose-cn h3{font-size:18px}
    .related-grid{grid-template-columns:1fr}
    .read-hint{flex-direction:column;gap:10px}
    .contact-strip{padding:22px}
    .site-footer{margin-top:48px;padding:44px 0 22px}
    .footer-main{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;gap:6px}
  }
  @media (max-width:520px){
    .article-title{font-size:23px;line-height:1.4}
    .container{padding:0 16px}
    .contact-strip-actions{width:100%}
    .contact-strip-actions .btn{flex:1 1 auto}
    .btn{width:100%}
    .back-row .btn{width:auto}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    .related-card:hover,.btn-primary:hover{transform:none}
  }

/* roulang page: category2 */
:root{
  --brand:#23594E;
  --brand-deep:#14332C;
  --brand-hover:#1B4A40;
  --brand-soft:#E6EEE9;
  --accent:#C9773F;
  --bg:#FAF7F1;
  --bg-2:#F2ECE1;
  --card:#FFFFFF;
  --ink:#1B211E;
  --ink-2:#5A655F;
  --line:#E3DACA;
  --cream:#FAF7F1;
  --r-card:14px;
  --r-sm:10px;
  --r-badge:6px;
  --shadow:0 1px 2px rgba(20,51,44,.06), 0 8px 24px rgba(20,51,44,.05);
  --shadow-hover:0 2px 6px rgba(20,51,44,.08), 0 14px 32px rgba(20,51,44,.09);
  --maxw:1160px;
  --nav-w:240px;
  --font: "PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{ margin:0; padding:0; }
ul,ol{ list-style:none; }
a{ color:var(--brand); text-decoration:none; transition:color .18s ease, background-color .18s ease, border-color .18s ease, opacity .18s ease; }
a:hover{ color:var(--brand-hover); }
img{ max-width:100%; display:block; }
button{ font-family:inherit; font-size:inherit; cursor:pointer; }
input,select,textarea{ font-family:inherit; font-size:inherit; color:var(--ink); }
::selection{ background:var(--brand-soft); color:var(--brand-deep); }
:focus-visible{ outline:3px solid rgba(35,89,78,.32); outline-offset:2px; border-radius:4px; }

.container{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 40px; }

/* ============ 侧边导航 App Shell ============ */
.side-nav{
  position:fixed;
  top:0; left:0;
  width:var(--nav-w);
  height:100vh;
  background:var(--brand-deep);
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:28px;
  z-index:60;
  overflow-y:auto;
}
.brand-lockup{
  display:block;
  padding-bottom:20px;
  border-bottom:1px solid rgba(250,247,241,.12);
}
.brand-main{
  display:block;
  font-size:18px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--cream);
  line-height:1.4;
}
.brand-sub{
  display:block;
  margin-top:2px;
  font-size:12px;
  font-weight:400;
  letter-spacing:.08em;
  color:rgba(250,247,241,.62);
}
.brand-lockup:hover .brand-main{ color:#fff; }
.side-nav-links{ display:flex; flex-direction:column; gap:4px; }
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:8px;
  font-size:14.5px;
  color:rgba(250,247,241,.72);
  transition:background-color .18s ease, color .18s ease;
}
.nav-item::before{
  content:"";
  position:absolute;
  left:0; top:50%;
  transform:translateY(-50%);
  width:6px; height:0;
  border-radius:0 3px 3px 0;
  background:var(--accent);
  transition:height .2s ease;
}
.nav-item:hover{ background:rgba(250,247,241,.08); color:var(--cream); }
.nav-item:active{ background:rgba(250,247,241,.13); }
.nav-item.active{ color:var(--cream); background:rgba(250,247,241,.07); font-weight:600; }
.nav-item.active::before{ height:20px; }
.side-card{
  margin-top:auto;
  background:rgba(250,247,241,.06);
  border:1px solid rgba(250,247,241,.12);
  border-radius:12px;
  padding:16px;
}
.side-card-title{
  font-size:13px;
  font-weight:600;
  color:var(--cream);
  letter-spacing:.05em;
  margin-bottom:8px;
}
.side-card-line{
  font-size:12.5px;
  line-height:1.75;
  color:rgba(250,247,241,.62);
}
.side-card-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:14px;
  padding:7px 14px;
  font-size:13px;
  border:1px solid rgba(250,247,241,.42);
  border-radius:8px;
  color:var(--cream);
  transition:background-color .18s ease, border-color .18s ease;
}
.side-card-btn:hover{ background:rgba(250,247,241,.14); border-color:rgba(250,247,241,.7); color:#fff; }

/* ============ 主区域 ============ */
.main-area{ margin-left:var(--nav-w); min-height:100vh; display:flex; flex-direction:column; }
main{ flex:1; padding-top:44px; padding-bottom:8px; }

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-topbar{
  display:none;
  position:sticky; top:0; z-index:50;
  height:64px;
  align-items:center;
  justify-content:space-between;
  padding:0 20px;
  background:var(--brand-deep);
}
.mobile-brand{ font-size:15px; font-weight:600; color:var(--cream); letter-spacing:.02em; }
.mobile-brand span{ color:var(--accent); }
.menu-btn{
  width:40px; height:40px;
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid rgba(250,247,241,.28);
  border-radius:9px;
  background:transparent;
  color:var(--cream);
  transition:background-color .18s ease;
}
.menu-btn:hover{ background:rgba(250,247,241,.14); }
.drawer{
  position:fixed; top:0; left:0;
  width:280px; height:100%;
  background:var(--brand-deep);
  padding:24px;
  transform:translateX(-100%);
  transition:transform .22s ease-out;
  z-index:80;
  display:flex; flex-direction:column; gap:24px;
  overflow-y:auto;
}
.drawer.open{ transform:translateX(0); }
.drawer-close{
  align-self:flex-end;
  width:36px; height:36px;
  display:inline-flex; align-items:center; justify-content:center;
  background:transparent; border:1px solid rgba(250,247,241,.28);
  border-radius:8px; color:var(--cream);
}
.overlay{
  position:fixed; inset:0;
  background:rgba(20,51,44,.4);
  opacity:0; visibility:hidden;
  transition:opacity .2s ease, visibility .2s ease;
  z-index:70;
}
.overlay.open{ opacity:1; visibility:visible; }

/* ============ 面包屑与页头 ============ */
.breadcrumb{
  display:flex; align-items:center; flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--ink-2);
  margin-bottom:26px;
}
.breadcrumb a{ color:var(--ink-2); }
.breadcrumb a:hover{ color:var(--brand); text-decoration:underline; text-underline-offset:4px; }
.breadcrumb .sep{ width:1px; height:12px; background:var(--line); display:inline-block; }
.breadcrumb [aria-current]{ color:var(--brand); font-weight:600; }

.page-h1{
  position:relative;
  padding-left:20px;
  font-size:30px;
  line-height:1.42;
  font-weight:700;
  color:var(--brand-deep);
  max-width:820px;
}
.page-h1::before{
  content:"";
  position:absolute;
  left:0; top:9px; bottom:9px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
}
.page-lead{
  margin-top:16px;
  margin-left:20px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:700px;
}
.metrics{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:14px;
  margin-top:30px;
}
.metric{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:12px;
  padding:14px 18px;
  box-shadow:var(--shadow);
}
.metric-label{ font-size:12px; color:var(--ink-2); letter-spacing:.04em; }
.metric-value{ font-size:20px; font-weight:600; color:var(--brand); line-height:1.5; margin-top:2px; }

/* ============ 通用板块 ============ */
.section{ padding:72px 0 0; }
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:28px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.section-head h2{
  font-size:23px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.4;
}
.section-note{ font-size:13px; color:var(--ink-2); }
.section-note a{ font-size:13px; }
.section-note a:hover{ text-decoration:underline; text-underline-offset:4px; }

/* ============ 时间线清单 ============ */
.timeline{
  position:relative;
  padding-left:28px;
  margin-top:4px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:3px; top:8px; bottom:8px;
  width:2px;
  background:linear-gradient(180deg, var(--brand) 0%, rgba(35,89,78,.14) 100%);
}
.timeline-item{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:6px 24px;
  padding-bottom:26px;
  margin-bottom:26px;
  border-bottom:1px solid var(--line);
}
.timeline-item:last-child{ border-bottom:0; margin-bottom:0; padding-bottom:0; }
.timeline-item::before{
  content:"";
  position:absolute;
  left:-28px; top:9px;
  width:8px; height:8px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px var(--bg);
}
.timeline-title{
  font-size:17.5px;
  font-weight:600;
  color:var(--brand-deep);
  line-height:1.55;
}
.timeline-desc{
  margin-top:6px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:680px;
}
.timeline-date{
  font-size:13px;
  color:var(--ink-2);
  white-space:nowrap;
  padding-top:3px;
  letter-spacing:.02em;
}
.timeline-tag{
  display:inline-block;
  margin-left:10px;
  padding:1px 8px;
  font-size:12px;
  line-height:20px;
  border-radius:6px;
  background:var(--brand-soft);
  color:var(--brand);
  vertical-align:middle;
  font-weight:500;
}

/* ============ 提交前确认 ============ */
.confirm-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:36px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow);
}
.confirm-figure{
  overflow:hidden;
  border-radius:12px;
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.confirm-figure img{
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .2s ease-out;
}
.confirm-block:hover .confirm-figure img{ transform:scale(1.03); }
.confirm-title{
  font-size:20px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.5;
}
.confirm-list{ margin-top:18px; display:flex; flex-direction:column; gap:16px; }
.confirm-list li{
  position:relative;
  padding-left:22px;
}
.confirm-list li::before{
  content:"";
  position:absolute;
  left:0; top:9px;
  width:7px; height:7px;
  border-radius:2px;
  background:var(--accent);
  transform:rotate(45deg);
}
.confirm-list h3{
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
}
.confirm-list p{
  margin-top:3px;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
}

/* ============ 表单区 ============ */
.form-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:28px;
  align-items:start;
}
.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--shadow);
}
.form-card h2{
  font-size:21px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.5;
}
.form-card > p.form-intro{
  margin-top:8px;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
}
.form-grid{
  margin-top:24px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px 20px;
}
.field{ display:flex; flex-direction:column; }
.field.wide{ grid-column:1 / -1; }
.field label{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
}
.field label .req{ color:var(--accent); margin-left:2px; }
.field input,
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  padding:0 14px;
  height:44px;
  line-height:44px;
  color:var(--ink);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.field textarea{
  height:auto;
  min-height:108px;
  padding:12px 14px;
  line-height:1.75;
  resize:vertical;
}
.field select{ appearance:none; background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235A655F' d='M6 8 0 0h12z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 14px center; padding-right:36px; }
.field input::placeholder,
.field textarea::placeholder{ color:#A8AFA9; }
.field input:hover,
.field select:hover,
.field textarea:hover{ border-color:#CFC4B0; }
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(35,89,78,.18);
}
.field.is-error input,
.field.is-error select,
.field.is-error textarea{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(180,85,60,.14);
}
.field-error{
  display:none;
  margin-top:8px;
  font-size:12.5px;
  line-height:1.6;
  color:#B4553C;
}
.field.is-error .field-error{ display:block; }
.form-actions{
  margin-top:24px;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:0 24px;
  height:44px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.02em;
  transition:background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn-primary{ background:var(--brand); color:var(--cream); }
.btn-primary:hover{ background:var(--brand-hover); color:#fff; transform:translateY(-1px); box-shadow:0 6px 16px rgba(20,51,44,.18); }
.btn-primary:active{ transform:translateY(0); box-shadow:none; }
.btn-ghost{ background:transparent; color:var(--brand); border-color:var(--brand); }
.btn-ghost:hover{ background:rgba(35,89,78,.06); color:var(--brand-hover); }
.btn-ghost:active{ background:rgba(35,89,78,.12); }
.btn:disabled{ opacity:.45; cursor:not-allowed; transform:none; box-shadow:none; }
.form-hint{ font-size:12.5px; color:var(--ink-2); line-height:1.7; }
.form-status{
  margin-top:18px;
  display:none;
  padding:12px 16px;
  border-radius:var(--r-sm);
  background:var(--brand-soft);
  border:1px solid rgba(35,89,78,.2);
  font-size:13.5px;
  line-height:1.75;
  color:var(--brand-deep);
}
.form-status.show{ display:block; }

.contact-side{ display:flex; flex-direction:column; gap:18px; }
.contact-figure{
  overflow:hidden;
  border-radius:12px;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.contact-figure img{ width:100%; height:100%; object-fit:cover; }
.contact-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
}
.contact-card h3{
  font-size:15.5px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.5;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.kv{
  display:flex;
  justify-content:space-between;
  gap:14px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:13.5px;
  line-height:1.7;
}
.kv:last-of-type{ border-bottom:0; }
.kv dt{ color:var(--ink-2); flex-shrink:0; }
.kv dd{ margin:0; color:var(--ink); text-align:right; font-weight:500; }
.contact-card .card-note{
  margin-top:12px;
  font-size:12.5px;
  line-height:1.75;
  color:var(--ink-2);
}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--line);
}
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 4px 20px 18px;
  background:transparent;
  border:0;
  border-left:3px solid transparent;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--brand-deep);
  line-height:1.6;
  transition:background-color .18s ease, border-color .18s ease, color .18s ease;
}
.faq-q:hover{ background:rgba(35,89,78,.04); }
.faq-item.open .faq-q{ border-left-color:var(--brand); color:var(--brand); }
.faq-icon{
  flex-shrink:0;
  width:20px; height:20px;
  position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:1px;
}
.faq-icon::before{ left:0; top:9px; width:20px; height:2px; }
.faq-icon::after{ left:9px; top:0; width:2px; height:20px; }
.faq-item.open .faq-icon{ transform:rotate(45deg); }
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .2s ease-out;
}
.faq-a-inner{
  padding:0 4px 22px 18px;
  border-left:3px solid var(--brand);
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:760px;
}

/* ============ CTA 条带 ============ */
.cta-band{
  margin-top:72px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:20px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.5;
}
.cta-band p{
  margin-top:6px;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:560px;
}
.cta-actions{ display:flex; gap:12px; flex-wrap:wrap; }

/* ============ 页脚 ============ */
.site-footer{
  margin-top:72px;
  background:var(--brand-deep);
  color:rgba(250,247,241,.82);
  padding:56px 0 24px;
}
.footer-main{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:40px;
}
.footer-brand-name{
  font-size:18px;
  font-weight:600;
  color:var(--cream);
  letter-spacing:.04em;
  line-height:1.4;
}
.footer-brand-sub{
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(250,247,241,.6);
  margin-top:2px;
}
.footer-desc{
  margin-top:14px;
  font-size:13.5px;
  line-height:1.85;
  color:rgba(250,247,241,.62);
  max-width:380px;
}
.footer-title{
  font-size:13px;
  font-weight:600;
  color:var(--cream);
  letter-spacing:.06em;
  margin-bottom:10px;
}
.footer-links{ display:flex; flex-direction:column; }
.footer-links a{
  display:block;
  line-height:32px;
  font-size:14px;
  color:rgba(250,247,241,.72);
}
.footer-links a:hover{ color:#fff; text-decoration:underline; text-underline-offset:4px; }
.footer-info p{
  font-size:13.5px;
  line-height:32px;
  color:rgba(250,247,241,.72);
}
.footer-info .domain{ color:var(--cream); font-weight:500; }
.footer-bottom{
  margin-top:24px;
  padding-top:18px;
  border-top:1px solid rgba(250,247,241,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(250,247,241,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .form-layout{ grid-template-columns:minmax(0,1fr) 300px; }
}
@media (max-width:1023px){
  .side-nav{ display:none; }
  .main-area{ margin-left:0; }
  .mobile-topbar{ display:flex; }
  .container{ padding:0 20px; }
  main{ padding-top:36px; }
  .section{ padding:48px 0 0; }
  .cta-band{ margin-top:48px; }
  .site-footer{ margin-top:48px; padding-top:44px; }
  .form-layout{ grid-template-columns:minmax(0,1fr); }
  .confirm-block{ grid-template-columns:minmax(0,1fr); gap:24px; padding:22px; }
  .page-h1{ font-size:27px; }
  .footer-main{ grid-template-columns:1fr 1fr; gap:32px; }
  .footer-main > div:first-child{ grid-column:1 / -1; }
}
@media (max-width:767px){
  .page-h1{ font-size:24px; padding-left:16px; }
  .page-h1::before{ top:6px; bottom:6px; }
  .page-lead{ margin-left:16px; font-size:14.5px; }
  .section-head h2{ font-size:20px; }
  .form-card{ padding:22px; }
  .form-grid{ grid-template-columns:1fr; }
  .timeline-item{ grid-template-columns:1fr; gap:4px; }
  .timeline-date{ padding-top:0; }
  .cta-band{ padding:22px; }
  .footer-main{ grid-template-columns:1fr; gap:26px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; gap:6px; }
}
@media (max-width:520px){
  .container{ padding:0 16px; }
  main{ padding-top:28px; }
  .page-h1{ font-size:22px; }
  .metrics{ grid-template-columns:1fr 1fr; gap:10px; }
  .metric{ padding:12px 14px; }
  .metric-value{ font-size:17px; }
  .btn{ width:100%; }
  .form-actions{ flex-direction:column; align-items:stretch; gap:12px; }
  .faq-q{ font-size:15px; padding:16px 2px 16px 14px; }
  .faq-a-inner{ padding:0 2px 18px 14px; font-size:14.5px; }
  .cta-actions{ width:100%; }
}
@media (prefers-reduced-motion:reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
}