/* roulang page: index */
:root{
    --ink-field:#0C2E2A;
    --brand:#12A36B;
    --action:#FF6B2C;
    --action-hover:#E4551A;
    --action-active:#CE4A12;
    --bg:#FAF8F4;
    --card:#FFFFFF;
    --sub:#F1F4F1;
    --line:#E6E1D8;
    --text:#14171A;
    --muted:#5A6266;
    --dark-text:#F6F4EF;
    --dark-link:#FFD9A8;
    --radius-card:14px;
    --radius-hero:18px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(12,46,42,.06);
    --shadow-2:0 8px 24px rgba(12,46,42,.10);
    --sidebar-w:240px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.875;
    color:var(--text);
    background:var(--bg);
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
  ul,ol{padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
  .container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px}

  /* ---------- 侧栏 App Shell ---------- */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
    background:var(--ink-field);
    display:flex;flex-direction:column;
    border-right:1px solid rgba(246,244,239,.08);
    z-index:70;
    transition:transform .26s ease-out,width .2s ease-out;
  }
  .sidebar-brand{
    display:flex;align-items:center;gap:10px;
    padding:22px 20px 20px;
    border-bottom:1px solid rgba(246,244,239,.10);
  }
  .brand-mark{
    width:34px;height:34px;flex:0 0 34px;border-radius:9px;
    background:var(--brand);color:#F6F4EF;
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:700;letter-spacing:.02em;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-name{font-size:15px;font-weight:700;color:var(--dark-text);letter-spacing:.01em}
  .brand-sub{font-size:11px;color:rgba(246,244,239,.5);letter-spacing:.06em}
  .sidebar-nav{padding:16px 0;display:flex;flex-direction:column;gap:2px;flex:1 1 auto;overflow-y:auto}
  .nav-item{
    display:flex;align-items:center;gap:12px;
    height:44px;padding:0 20px;
    font-size:14px;color:rgba(246,244,239,.72);
    border-left:3px solid transparent;
    transition:background .18s ease-out,color .18s ease-out;
  }
  .nav-item svg{flex:0 0 18px;stroke:currentColor}
  .nav-item:hover{background:rgba(255,255,255,.06);color:var(--dark-text)}
  .nav-item.active{
    background:rgba(18,163,107,.12);
    border-left-color:var(--brand);
    color:var(--dark-text);
  }
  .sidebar-foot{
    padding:16px 20px 20px;
    border-top:1px solid rgba(246,244,239,.10);
    font-size:11px;line-height:1.6;color:rgba(246,244,239,.42);
    letter-spacing:.04em;
  }
  .content{
    margin-left:var(--sidebar-w);
    min-height:100vh;
    display:flex;flex-direction:column;
  }

  /* ---------- 移动端顶栏与抽屉 ---------- */
  .topbar{
    display:none;
    position:sticky;top:0;z-index:80;
    height:60px;padding:0 16px;
    align-items:center;justify-content:space-between;gap:12px;
    background:var(--ink-field);
    border-bottom:1px solid rgba(246,244,239,.10);
  }
  .topbar-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--dark-text)}
  .topbar-actions{display:flex;align-items:center;gap:10px}
  .topbar-cta{
    height:36px;padding:0 14px;border-radius:10px;
    background:var(--action);color:#FFF9F5;
    font-size:13px;font-weight:600;display:inline-flex;align-items:center;
  }
  .topbar-cta:active{background:var(--action-active)}
  .drawer-toggle{
    width:40px;height:40px;border-radius:10px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid rgba(246,244,239,.24);color:var(--dark-text);
  }
  .drawer-mask{
    position:fixed;inset:0;background:rgba(12,46,42,.45);
    opacity:0;visibility:hidden;transition:opacity .22s ease-out;
    z-index:88;
  }
  body.drawer-open .drawer-mask{opacity:1;visibility:visible}

  /* ---------- 通用板块 ---------- */
  .section{padding:80px 0}
  .section-tight{padding:56px 0}
  .section-head{margin-bottom:32px;max-width:760px}
  .section-title{
    position:relative;padding-left:14px;
    font-size:26px;line-height:1.38;font-weight:600;letter-spacing:-.01em;color:var(--ink-field);
  }
  .section-title::before{
    content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand);
  }
  .section-desc{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8}
  .eyebrow{
    display:inline-block;margin-bottom:14px;padding:4px 12px;border-radius:999px;
    background:rgba(12,46,42,.08);color:var(--ink-field);
    font-size:12px;font-weight:600;letter-spacing:.08em;
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;letter-spacing:.02em;
    transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  }
  .btn-primary{background:var(--action);color:#FFF9F5}
  .btn-primary:hover{background:var(--action-hover)}
  .btn-primary:active{background:var(--action-active);transform:translateY(1px)}
  .btn-outline{border:1.5px solid var(--ink-field);color:var(--ink-field);background:transparent}
  .btn-outline:hover{background:rgba(12,46,42,.06)}
  .btn-outline:active{transform:translateY(1px)}
  .btn-sm{height:40px;padding:0 16px;font-size:14px}
  .btn-ghost-light{border:1.5px solid rgba(246,244,239,.55);color:var(--dark-text);background:transparent}
  .btn-ghost-light:hover{background:rgba(246,244,239,.12)}

  /* ---------- 卡片 ---------- */
  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
    transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  }
  .card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(18,163,107,.3)}
  .badge{
    display:inline-block;padding:3px 11px;border-radius:999px;
    background:rgba(12,46,42,.08);color:var(--ink-field);
    font-size:12px;font-weight:600;line-height:1.7;
  }

  /* ---------- Hero ---------- */
  .hero{padding:72px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:460px}
  .hero h1{
    font-size:36px;line-height:1.24;font-weight:700;letter-spacing:-.01em;color:var(--ink-field);
  }
  .hero-sub{margin-top:16px;font-size:17px;line-height:1.7;color:var(--muted);max-width:520px}
  .hero-actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
  .hero-stats{margin-top:40px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;border-top:1px solid var(--line);padding-top:24px}
  .stat-num{font-size:28px;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-.01em}
  .stat-label{margin-top:6px;font-size:12px;color:var(--muted);line-height:1.6}
  .hero-media{position:relative;border-radius:var(--radius-hero);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-1)}
  .hero-media img{width:100%;height:100%;object-fit:cover}
  .hero-tag{
    position:absolute;left:0;bottom:0;padding:12px 18px;
    background:rgba(12,46,42,.82);color:var(--dark-text);
    font-size:13px;letter-spacing:.02em;border-top-right-radius:14px;
  }

  /* ---------- 三步上手 ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;position:relative}
  .step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-1);transition:box-shadow .18s ease-out,transform .18s ease-out}
  .step:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
  .step:nth-child(2){margin-top:32px}
  .step:nth-child(3){margin-top:64px}
  .step-num{
    width:44px;height:44px;border-radius:999px;
    display:flex;align-items:center;justify-content:center;
    border:1.5px solid var(--brand);color:var(--brand);
    font-size:15px;font-weight:700;letter-spacing:.02em;
  }
  .step h3{margin-top:18px;font-size:19px;font-weight:600;color:var(--ink-field)}
  .step p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--muted)}
  .step-media{margin-top:18px;border-radius:12px;overflow:hidden;aspect-ratio:16/10;background:var(--sub)}
  .step-media img{width:100%;height:100%;object-fit:cover}

  /* ---------- 案例证明 ---------- */
  .proof{display:grid;grid-template-columns:6fr 5fr;gap:44px;align-items:stretch}
  .proof-list{display:flex;flex-direction:column;gap:14px}
  .proof-item{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:20px 22px;box-shadow:var(--shadow-1);
    transition:border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .proof-item:hover{border-color:rgba(18,163,107,.3);box-shadow:var(--shadow-2)}
  .proof-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
  .proof-text{font-size:15px;line-height:1.8;color:var(--ink-field)}
  .proof-time{font-size:12px;color:var(--muted);letter-spacing:.02em}
  .proof-media{position:relative;border-radius:var(--radius-card);overflow:hidden;min-height:320px;box-shadow:var(--shadow-1)}
  .proof-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
  .proof-quote{
    position:absolute;left:18px;right:18px;bottom:18px;
    background:rgba(250,248,244,.94);
    border-left:3px solid var(--brand);
    border-radius:12px;padding:16px 18px;
  }
  .proof-quote p{font-size:14px;line-height:1.75;color:var(--ink-field)}
  .proof-quote span{display:block;margin-top:8px;font-size:12px;color:var(--muted)}

  /* ---------- 最新信息 ---------- */
  .post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .post-card{overflow:hidden;display:flex;flex-direction:column}
  .post-card-link{display:flex;flex-direction:column;height:100%}
  .post-card-thumb{aspect-ratio:16/9;background:var(--sub);overflow:hidden}
  .post-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
  .post-card:hover .post-card-thumb img{transform:scale(1.03)}
  .post-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
  .post-card-title{
    font-size:17px;line-height:1.55;font-weight:600;color:var(--ink-field);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card-text{
    font-size:14px;line-height:1.7;color:var(--muted);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card-meta{
    margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:12px;color:var(--muted);
  }
  .post-card-more{color:var(--brand);font-weight:600;transition:transform .18s ease-out}
  .post-card:hover .post-card-more{transform:translateX(4px)}
  .empty-state{
    background:var(--sub);border-radius:var(--radius-card);
    padding:48px 24px;text-align:center;color:var(--muted);
  }
  .empty-state svg{margin:0 auto 14px;display:block;stroke:var(--muted)}

  /* ---------- 分类导流 ---------- */
  .cat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .cat-card{padding:28px 26px;display:flex;flex-direction:column;gap:12px}
  .cat-card h3{font-size:19px;font-weight:600;color:var(--ink-field)}
  .cat-card p{font-size:14px;line-height:1.8;color:var(--muted)}
  .cat-link{margin-top:6px;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
  .cat-card:hover .cat-link{gap:10px}

  /* ---------- FAQ ---------- */
  .faq-wrap{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card);overflow:hidden}
  .faq-item + .faq-item{border-top:1px solid var(--line)}
  .faq-q{
    width:100%;min-height:56px;padding:16px 22px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    text-align:left;font-size:16px;font-weight:600;color:var(--ink-field);
    position:relative;transition:color .18s ease-out,background .18s ease-out;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
    background:var(--brand);border-radius:2px;opacity:0;transition:opacity .18s ease-out;
  }
  .faq-q:hover{background:var(--sub)}
  .faq-item.open .faq-q{color:var(--ink-field)}
  .faq-item.open .faq-q::before{opacity:1}
  .faq-arrow{flex:0 0 16px;transition:transform .24s ease-out;color:var(--brand)}
  .faq-item.open .faq-arrow{transform:rotate(180deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
  .faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted)}

  /* ---------- CTA 条 ---------- */
  .cta-band{background:var(--ink-field);border-radius:var(--radius-hero);padding:44px 40px;color:var(--dark-text)}
  .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
  .cta-band h2{font-size:24px;font-weight:600;line-height:1.4;color:var(--dark-text)}
  .cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(246,244,239,.78);max-width:560px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink-field);color:rgba(246,244,239,.78);margin-top:auto}
  .footer-grid{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;
    padding:56px 0 36px;
  }
  .footer-title{
    font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--dark-text);margin-bottom:14px;
  }
  .footer-brand-name{font-size:16px;font-weight:700;color:var(--dark-text);margin-bottom:10px}
  .footer-text{font-size:13px;line-height:1.9;color:rgba(246,244,239,.66)}
  .footer-links li{line-height:32px;font-size:14px}
  .footer-links a{color:rgba(246,244,239,.78);transition:color .18s ease-out}
  .footer-links a:hover{color:var(--dark-link)}
  .footer-bottom{
    border-top:1px solid rgba(246,244,239,.12);
    padding:18px 0 24px;font-size:12px;color:rgba(246,244,239,.5);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    :root{--sidebar-w:76px}
    .brand-text,.nav-text,.sidebar-foot{display:none}
    .sidebar-brand{justify-content:center;padding:20px 0 18px}
    .nav-item{justify-content:center;padding:0;border-left-width:3px}
    .hero-grid{gap:32px}
  }
  @media (max-width:1023px){
    .topbar{display:flex}
    .sidebar{
      transform:translateX(-100%);
      width:280px;
      box-shadow:var(--shadow-2);
    }
    body.drawer-open .sidebar{transform:translateX(0)}
    .brand-text,.nav-text{display:flex}
    .brand-text{flex-direction:column}
    .sidebar-foot{display:block}
    .sidebar-brand{justify-content:flex-start;padding:22px 20px 20px}
    .nav-item{justify-content:flex-start;padding:0 20px}
    .content{margin-left:0}
    .container{padding:0 28px}
    .hero{padding:48px 0 40px}
    .hero-grid{grid-template-columns:1fr;min-height:auto}
    .hero-media{order:-1;aspect-ratio:16/10}
    .hero h1{font-size:26px;line-height:1.34}
    .section-title{font-size:20px;line-height:1.45}
    .section{padding:56px 0}
    .steps{grid-template-columns:1fr;gap:16px}
    .step:nth-child(2),.step:nth-child(3){margin-top:0}
    .proof{grid-template-columns:1fr;gap:24px}
    .proof-media{min-height:260px}
    .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:44px 0 28px}
  }
  @media (max-width:639px){
    .container{padding:0 18px}
    .hero-stats{grid-template-columns:1fr;gap:14px}
    .hero-actions .btn{width:100%}
    .cat-grid{grid-template-columns:1fr}
    .post-grid{grid-template-columns:1fr}
    .cta-band{padding:32px 22px}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:24px}
    .section{padding:48px 0}
    .faq-q{font-size:15px;padding:14px 18px}
    .faq-a p{padding:0 18px 18px}
  }
  @media (max-width:520px){
    .topbar-cta{display:none}
  }

/* roulang page: article */
:root{
  --ink:#0C2E2A;
  --ink-2:#134139;
  --brand:#12A36B;
  --brand-soft:rgba(18,163,107,.12);
  --action:#FF6B2C;
  --action-hover:#E4551A;
  --action-active:#D24C13;
  --bg:#FAF8F4;
  --card:#FFFFFF;
  --sub:#F1F4F1;
  --line:#E6E1D8;
  --text:#14171A;
  --muted:#5A6266;
  --deep-text:#F6F4EF;
  --deep-link:#FFD9A8;
  --badge-bg:rgba(12,46,42,.08);
  --r-card:14px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(12,46,42,.06);
  --sh-2:0 8px 24px rgba(12,46,42,.10);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- 布局骨架 ---------- */
.shell{display:flex;min-height:100vh;}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--ink);color:var(--deep-text);
  display:flex;flex-direction:column;
  padding:22px 14px 16px;z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;padding:6px 10px 18px;border-bottom:1px solid rgba(255,255,255,.10);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:9px;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.02em;
}
.brand-name{font-size:15px;font-weight:700;line-height:1.3;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:rgba(246,244,239,.5);letter-spacing:.06em;}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;margin-top:16px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:14px;color:rgba(246,244,239,.76);
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-item svg{stroke:currentColor;fill:none;flex:0 0 18px;}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--deep-text);}
.nav-item.active{background:var(--brand-soft);color:var(--deep-text);}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:2px;background:var(--brand);
}
.sidebar-foot{margin-top:auto;padding:14px 12px 0;border-top:1px solid rgba(255,255,255,.10);font-size:11px;color:rgba(246,244,239,.45);letter-spacing:.04em;}

.main{flex:1;min-width:0;margin-left:var(--sidebar-w);}
.main-inner{max-width:1120px;margin:0 auto;padding:28px 40px 0;}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;
  height:60px;background:var(--ink);color:var(--deep-text);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-brand{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;}
.topbar-mark{width:30px;height:30px;border-radius:8px;background:var(--brand);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;}
.topbar-actions{display:flex;align-items:center;gap:10px;}
.topbar-cta{height:36px;padding:0 14px;border-radius:9px;background:var(--action);color:#fff;font-size:13px;font-weight:600;display:inline-flex;align-items:center;}
.burger{width:40px;height:40px;border-radius:9px;border:1px solid rgba(255,255,255,.22);background:transparent;display:flex;align-items:center;justify-content:center;color:var(--deep-text);}
.drawer-mask{position:fixed;inset:0;background:rgba(12,46,42,.45);opacity:0;visibility:hidden;transition:.2s;z-index:80;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;background:var(--ink);
  color:var(--deep-text);padding:18px 14px;transform:translateX(102%);
  transition:transform .24s ease-out;z-index:90;display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:4px 8px 16px;border-bottom:1px solid rgba(255,255,255,.10);}
.drawer-close{width:36px;height:36px;border-radius:9px;border:1px solid rgba(255,255,255,.22);background:transparent;color:var(--deep-text);display:flex;align-items:center;justify-content:center;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:6px 0 18px;}
.breadcrumb a{color:var(--muted);border-bottom:1px solid transparent;transition:.18s;}
.breadcrumb a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.breadcrumb .sep{color:#C3BEB2;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ---------- 文章头部 ---------- */
.article-head{max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:999px;background:var(--badge-bg);color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.article-head h1{
  font-size:36px;line-height:1.24;font-weight:700;letter-spacing:-.01em;
  margin:18px 0 16px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3BEB2;}
.article-meta .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--badge-bg);color:var(--ink);font-size:12px;font-weight:600;
}
.article-cover{
  margin:28px 0 8px;border-radius:18px;overflow:hidden;background:var(--sub);
  box-shadow:var(--sh-1);
}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover;}

/* ---------- 正文 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;padding:34px 0 8px;}
.article-wrap{max-width:760px;}
.article-body{font-size:16px;line-height:1.9;color:var(--text);}
.article-body p{margin:1.25em 0;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;font-weight:600;
  margin:56px 0 16px;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand);}
.article-body h3{
  position:relative;font-size:19px;line-height:1.55;font-weight:600;
  margin:34px 0 12px;padding-left:14px;
}
.article-body h3::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;border-radius:2px;background:rgba(18,163,107,.45);}
.article-body ul,.article-body ol{margin:1em 0;padding-left:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin:.6em 0;line-height:1.85;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--brand);transform:rotate(45deg);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:3px;width:18px;height:18px;
  border-radius:50%;background:var(--brand-soft);color:var(--ink);
  font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:1.5em 0;padding:16px 22px;background:var(--sub);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:#31403E;
}
.article-body blockquote p{margin:.4em 0;}
.article-body img{border-radius:14px;margin:1.6em auto;box-shadow:var(--sh-1);}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(18,163,107,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body strong{font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--sub);font-weight:600;}

.empty-state{
  background:var(--sub);border-radius:var(--r-card);padding:48px 28px;text-align:center;
  max-width:760px;
}
.empty-state .icon{
  width:40px;height:40px;margin:0 auto 16px;border-radius:12px;background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--ink);box-shadow:var(--sh-1);
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1.5px solid transparent;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--action);color:#fff;}
.btn-primary:hover{background:var(--action-hover);box-shadow:var(--sh-2);transform:translateY(-2px);}
.btn-primary:active{background:var(--action-active);transform:translateY(0);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:rgba(12,46,42,.06);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
}
.btn-link svg{transition:transform .18s ease-out;}
.btn-link:hover svg{transform:translateX(4px);}

/* ---------- 相关推荐 ---------- */
.section{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-head h2{
  position:relative;font-size:26px;line-height:1.4;font-weight:600;padding-left:16px;
}
.section-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand);}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;}
.rel-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.rel-card{
  display:flex;align-items:center;gap:20px;padding:20px 24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.rel-card:hover{border-color:rgba(18,163,107,.3);box-shadow:var(--sh-2);transform:translateY(-2px);}
.rel-card .rel-index{
  flex:0 0 40px;height:40px;border-radius:10px;background:var(--sub);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--ink);
}
.rel-card .rel-main{flex:1;min-width:0;}
.rel-card h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:6px;}
.rel-card .rel-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.rel-card .rel-meta .tag{background:var(--badge-bg);color:var(--ink);border-radius:999px;padding:2px 10px;font-size:12px;font-weight:600;}
.rel-card .arrow{color:var(--brand);flex:0 0 auto;transition:transform .18s ease-out;}
.rel-card:hover .arrow{transform:translateX(4px);}

.back-row{padding:8px 0 16px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--ink);color:var(--deep-text);border-radius:var(--r-card);
  padding:34px 38px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;line-height:1.4;font-weight:600;color:var(--deep-text);}
.cta-band p{font-size:14px;color:rgba(246,244,239,.72);margin-top:8px;max-width:560px;}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-ghost{border-color:rgba(246,244,239,.55);color:var(--deep-text);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.10);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--deep-text);margin-top:72px;padding:56px 0 0;}
.site-footer .container{max-width:1120px;margin:0 auto;padding:0 40px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:40px;}
.footer-brand-name{font-size:16px;font-weight:700;margin-bottom:12px;}
.footer-text{font-size:13px;line-height:1.9;color:rgba(246,244,239,.68);}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(246,244,239,.6);margin-bottom:14px;}
.footer-links li a{font-size:14px;line-height:32px;color:rgba(246,244,239,.85);transition:color .18s ease-out;}
.footer-links li a:hover{color:var(--deep-link);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12px;color:rgba(246,244,239,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:76px;}
  .brand{justify-content:center;padding:6px 0 16px;}
  .brand-text{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .nav-item .nav-text{display:none;}
  .sidebar-foot{display:none;}
  .main-inner{padding:24px 28px 0;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .topbar{display:flex;}
  .main{margin-left:0;}
  .main-inner{padding:20px 20px 0;}
  .article-head h1{font-size:28px;line-height:1.32;}
  .article-body h2{font-size:22px;margin-top:44px;}
  .section{padding:48px 0;}
  .cta-band{padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .article-head h1{font-size:26px;}
  .article-cover img{aspect-ratio:16/9;}
  .btn{width:100%;}
  .cta-band .actions{width:100%;}
  .cta-band .actions .btn{width:100%;}
  .rel-card{align-items:flex-start;}
  .rel-card .rel-index{flex:0 0 34px;height:34px;font-size:13px;}
  .site-footer .container{padding:0 20px;}
}
@media (max-width:520px){
  .main-inner{padding:16px 16px 0;}
  .article-body{font-size:15px;line-height:1.85;}
  .article-body h2{font-size:20px;}
  .article-body h3{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
    --ink:#0C2E2A;
    --green:#12A36B;
    --orange:#FF6B2C;
    --orange-hover:#E4551A;
    --orange-active:#CE4B14;
    --bg:#FAF8F4;
    --card:#FFFFFF;
    --soft:#F1F4F1;
    --line:#E6E1D8;
    --text:#14171A;
    --muted:#5A6266;
    --dark-text:#F6F4EF;
    --dark-link:#FFD9A8;
    --r-card:14px;
    --r-btn:10px;
    --sh-1:0 1px 2px rgba(12,46,42,.06);
    --sh-2:0 8px 24px rgba(12,46,42,.10);
    --side-w:240px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:30px;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  ul{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  button{font-family:inherit;cursor:pointer}
  .tabular{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1120px;margin:0 auto;padding-left:40px;padding-right:40px}

  /* ---------- 侧栏 App Shell ---------- */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
    background:var(--ink);color:var(--dark-text);
    display:flex;flex-direction:column;
    padding:22px 14px 18px;
    z-index:60;
    border-right:1px solid rgba(246,244,239,.10);
  }
  .brand{display:flex;align-items:center;gap:10px;padding:6px 8px 20px;border-bottom:1px solid rgba(246,244,239,.10)}
  .brand-mark{
    width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--green);
    display:grid;place-items:center;color:#08201D;font-weight:700;font-size:17px;letter-spacing:.02em;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-name{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--dark-text)}
  .brand-sub{font-size:11px;letter-spacing:.14em;color:rgba(246,244,239,.55);margin-top:3px}

  .sidebar-nav{display:flex;flex-direction:column;gap:4px;margin-top:20px}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:12px;
    height:44px;padding:0 12px;border-radius:var(--r-btn);
    color:rgba(246,244,239,.74);font-size:14px;letter-spacing:.01em;
    transition:background .18s ease,color .18s ease;
  }
  .nav-item svg{stroke:currentColor;fill:none;flex:0 0 18px}
  .nav-item:hover{background:rgba(255,255,255,.06);color:var(--dark-text)}
  .nav-item:focus-visible{outline:2px solid var(--green);outline-offset:2px}
  .nav-item.active{background:rgba(18,163,107,.12);color:var(--dark-text);font-weight:600}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--green);
  }
  .side-foot{margin-top:auto;padding:16px 8px 0;border-top:1px solid rgba(246,244,239,.10)}
  .side-foot small{font-size:11px;letter-spacing:.06em;color:rgba(246,244,239,.42)}

  /* ---------- 移动端顶栏与抽屉 ---------- */
  .mobile-bar{
    display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
    background:var(--ink);border-bottom:1px solid rgba(246,244,239,.12);
    align-items:center;justify-content:space-between;padding:0 16px;
  }
  .mobile-brand{display:flex;align-items:center;gap:9px;color:var(--dark-text);font-size:14px;font-weight:600}
  .mobile-mark{width:32px;height:32px;border-radius:9px;background:var(--green);display:grid;place-items:center;color:#08201D;font-weight:700;font-size:15px}
  .mobile-actions{display:flex;align-items:center;gap:10px}
  .hamburger{
    width:42px;height:42px;border-radius:var(--r-btn);background:transparent;
    border:1px solid rgba(246,244,239,.22);display:grid;place-items:center;gap:4px;
  }
  .hamburger span{display:block;width:17px;height:2px;background:var(--dark-text);border-radius:2px}
  .hamburger:focus-visible{outline:2px solid var(--green);outline-offset:2px}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(12,46,42,.45);opacity:0;visibility:hidden;
    transition:opacity .22s ease,visibility .22s ease;z-index:80;
  }
  .drawer-mask.open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:270px;max-width:84vw;background:var(--ink);
    z-index:90;padding:22px 16px;display:flex;flex-direction:column;
    transform:translateX(100%);transition:transform .26s ease;
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(246,244,239,.12)}
  .drawer-close{width:36px;height:36px;border-radius:var(--r-btn);background:rgba(255,255,255,.06);border:1px solid rgba(246,244,239,.16);color:var(--dark-text);font-size:16px;line-height:1}
  .drawer-close:focus-visible{outline:2px solid var(--green);outline-offset:2px}
  .drawer .sidebar-nav{margin-top:18px}

  /* ---------- 主内容区 ---------- */
  .site-main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}

  .breadcrumb{padding:26px 0 0}
  .breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
  .breadcrumb li{display:flex;align-items:center;gap:8px}
  .breadcrumb li::after{content:"/";color:#B9B3A8}
  .breadcrumb li:last-child::after{content:""}
  .breadcrumb a{color:var(--muted)}
  .breadcrumb a:hover{color:var(--green)}
  .breadcrumb .current{color:var(--ink);font-weight:600}

  /* Hero */
  .hero{padding:48px 0 64px}
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;border-radius:999px;
    background:rgba(12,46,42,.08);color:var(--ink);
    font-size:12px;letter-spacing:.08em;font-weight:600;padding:6px 14px;
  }
  .eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--orange);display:block}
  h1{
    font-size:36px;line-height:44px;font-weight:700;letter-spacing:-.01em;color:var(--ink);
    margin:20px 0 0;
  }
  .hero-lead{margin-top:18px;font-size:16px;line-height:30px;color:var(--muted);max-width:640px}
  .hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;
    height:48px;padding:0 24px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;letter-spacing:.02em;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-primary{background:var(--orange);color:#1A0D05;box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--orange-hover);transform:translateY(-2px);box-shadow:var(--sh-2)}
  .btn-primary:active{background:var(--orange-active);transform:translateY(0)}
  .btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
  .btn-ghost:hover{background:rgba(12,46,42,.06);transform:translateY(-2px)}
  .btn-outline{background:transparent;color:var(--green);border:1.5px solid rgba(18,163,107,.45);height:44px;padding:0 20px}
  .btn-outline:hover{background:rgba(18,163,107,.08);border-color:var(--green);transform:translateY(-2px)}
  .btn:focus-visible{outline:2px solid var(--green);outline-offset:2px}

  .hero-stats{display:flex;gap:36px;margin-top:36px;flex-wrap:wrap;padding-top:26px;border-top:1px solid var(--line)}
  .stat-num{font-size:28px;line-height:34px;font-weight:700;color:var(--ink)}
  .stat-label{font-size:12px;line-height:20px;color:var(--muted);letter-spacing:.02em}

  .hero-figure{margin:0;position:relative}
  .hero-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;box-shadow:var(--sh-1);
  }
  .hero-figure figcaption{
    margin-top:12px;font-size:13px;line-height:22px;color:var(--muted);
  }

  /* 状态带 */
  .status-band{
    background-image:linear-gradient(rgba(12,46,42,.9),rgba(12,46,42,.9)),url("/assets/images/backpic/back-3.webp");
    background-size:cover;background-position:center;color:var(--dark-text);
    border-top:1px solid rgba(246,244,239,.08);
  }
  .status-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:20px;padding-bottom:20px;flex-wrap:wrap}
  .status-left{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600}
  .status-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(18,163,107,.22)}
  .status-right{display:flex;align-items:center;gap:14px;font-size:13px;color:rgba(246,244,239,.72);flex-wrap:wrap}
  .status-sep{width:1px;height:14px;background:rgba(246,244,239,.24);display:inline-block}

  /* 板块通用 */
  .section{padding:80px 0 0}
  .section-head{max-width:720px}
  h2{
    position:relative;font-size:26px;line-height:36px;font-weight:600;color:var(--ink);
    padding-left:14px;letter-spacing:-.005em;
  }
  h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--green)}
  .section-sub{margin-top:16px;font-size:15px;line-height:28px;color:var(--muted)}
  .section-body{margin-top:32px}

  /* 1 列横向大卡 */
  .path-list{display:flex;flex-direction:column;gap:24px}
  .path-card{
    display:grid;grid-template-columns:320px 1fr;gap:28px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:22px;box-shadow:var(--sh-1);
    transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  }
  .path-card:hover{border-color:rgba(18,163,107,.3);box-shadow:var(--sh-2);transform:translateY(-2px)}
  .path-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card)}
  .path-body{display:flex;flex-direction:column;align-items:flex-start}
  .badge{
    display:inline-block;border-radius:999px;background:rgba(12,46,42,.08);color:var(--ink);
    font-size:12px;line-height:22px;padding:0 12px;font-weight:600;letter-spacing:.02em;
  }
  h3{font-size:19px;line-height:30px;font-weight:600;color:var(--ink);margin-top:12px}
  .path-body > p{margin-top:10px;font-size:14px;line-height:26px;color:var(--muted)}
  .tick-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
  .tick-list li{position:relative;padding-left:20px;font-size:14px;line-height:24px;color:var(--text)}
  .tick-list li::before{
    content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:3px;
    background:rgba(18,163,107,.18);border:1.5px solid var(--green);
  }
  .path-body .btn{margin-top:20px}

  /* 场景卡 2 列 */
  .scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
  .scene-card{
    background:var(--soft);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px;transition:background .18s ease,border-color .18s ease;
  }
  .scene-card:hover{background:#FFFFFF;border-color:rgba(18,163,107,.3)}
  .scene-card h3{margin-top:0}
  .scene-card p{margin-top:10px;font-size:14px;line-height:26px;color:var(--muted)}
  .scene-meta{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
  .scene-meta span{background:rgba(12,46,42,.06);border-radius:999px;padding:3px 12px}

  /* 纵向步骤时间线 */
  .flow{position:relative;padding-left:34px}
  .flow::before{content:"";position:absolute;left:11px;top:10px;bottom:10px;border-left:1px dashed rgba(18,163,107,.5)}
  .flow-item{position:relative;padding-bottom:28px}
  .flow-item:last-child{padding-bottom:0}
  .flow-no{
    position:absolute;left:-34px;top:2px;width:24px;height:24px;border-radius:50%;
    background:#FFFFFF;border:1px solid rgba(18,163,107,.55);color:var(--green);
    display:grid;place-items:center;font-size:11px;font-weight:700;
  }
  .flow-item h3{margin-top:0;font-size:17px;line-height:28px}
  .flow-item p{margin-top:6px;font-size:14px;line-height:26px;color:var(--muted);max-width:720px}

  /* FAQ */
  .faq{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);overflow:hidden}
  .faq-item + .faq-item{border-top:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:14px 22px;background:transparent;border:0;text-align:left;
    font-size:16px;line-height:26px;font-weight:600;color:var(--text);
    transition:color .18s ease,background .18s ease;
  }
  .faq-q:hover{background:rgba(18,163,107,.05)}
  .faq-q:focus-visible{outline:2px solid var(--green);outline-offset:-2px}
  .faq-item.open .faq-q{color:var(--ink)}
  .faq-item.open .faq-q::before{
    content:"";position:absolute;left:0;width:3px;height:26px;border-radius:2px;background:var(--green);
  }
  .faq-item{position:relative}
  .faq-arrow{
    flex:0 0 18px;color:var(--green);transition:transform .2s ease;
  }
  .faq-item.open .faq-arrow{transform:rotate(180deg)}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height .26s ease;
  }
  .faq-a-inner{padding:0 22px 20px;font-size:14px;line-height:26px;color:var(--muted);max-width:760px}

  /* CTA 条 */
  .cta-band{background:var(--ink);color:var(--dark-text);margin-top:80px}
  .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-top:44px;padding-bottom:44px;flex-wrap:wrap}
  .cta-title{font-size:24px;line-height:32px;font-weight:600;color:var(--dark-text)}
  .cta-sub{margin-top:8px;font-size:14px;line-height:24px;color:rgba(246,244,239,.74);max-width:600px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
  .btn-ghost-light{background:transparent;color:var(--dark-text);border:1.5px solid rgba(246,244,239,.4)}
  .btn-ghost-light:hover{background:rgba(255,255,255,.08);border-color:var(--dark-link);color:var(--dark-link)}

  /* 页脚 */
  .site-footer{background:var(--ink);color:var(--dark-text);margin-top:0;border-top:1px solid rgba(246,244,239,.08)}
  .footer-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
    padding:56px 0 40px;
  }
  .footer-brand-name{font-size:16px;font-weight:700;color:var(--dark-text);letter-spacing:.01em}
  .footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(246,244,239,.66);margin-bottom:14px}
  .footer-links{display:flex;flex-direction:column;gap:6px}
  .footer-links a{font-size:14px;line-height:32px;color:rgba(246,244,239,.8);transition:color .18s ease}
  .footer-links a:hover{color:var(--dark-link)}
  .footer-text{margin-top:12px;font-size:13px;line-height:24px;color:rgba(246,244,239,.62);max-width:320px}
  .footer-bottom{
    border-top:1px solid rgba(246,244,239,.10);
    padding:18px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:12px;color:rgba(246,244,239,.5);
  }

  /* 响应式 */
  @media (max-width:1279px){
    .container{padding-left:28px;padding-right:28px}
    :root{--side-w:76px}
    .sidebar{width:76px;padding:18px 8px;align-items:center}
    .brand{justify-content:center;padding:4px 0 16px;width:100%}
    .brand-text{display:none}
    .sidebar-nav{width:100%;align-items:center}
    .nav-item{width:48px;height:48px;justify-content:center;padding:0}
    .nav-text{display:none}
    .side-foot{display:none}
    .hero-grid{gap:32px}
    .path-card{grid-template-columns:260px 1fr;gap:22px}
  }
  @media (max-width:1023px){
    .mobile-bar{display:flex}
    .sidebar{display:none}
    .site-main{margin-left:0;padding-top:60px}
    .hero{padding:36px 0 48px}
    .hero-grid{grid-template-columns:1fr;gap:28px}
    .path-card{grid-template-columns:1fr;gap:18px}
    .path-figure img{aspect-ratio:16/9}
    .scene-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
    .cta-band{margin-top:56px}
    .section{padding:56px 0 0}
  }
  @media (max-width:639px){
    .container{padding-left:18px;padding-right:18px}
    h1{font-size:26px;line-height:34px}
    h2{font-size:20px;line-height:30px}
    h3{font-size:17px;line-height:28px}
    .hero-stats{gap:24px}
    .hero-actions .btn{width:100%}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:24px;padding:40px 0 28px}
    .path-card{padding:18px}
    .faq-q{padding:14px 16px;font-size:15px}
    .faq-a-inner{padding:0 16px 18px}
    .flow{padding-left:28px}
    .flow::before{left:9px}
    .flow-no{left:-28px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important}
  }

/* roulang page: category2 */
:root{
    --deep:#0C2E2A;
    --main:#12A36B;
    --act:#FF6B2C;
    --act-hover:#E4551A;
    --act-active:#C94A15;
    --bg:#FAF8F4;
    --card:#FFFFFF;
    --sub-bg:#F1F4F1;
    --line:#E6E1D8;
    --ink:#14171A;
    --ink-2:#5A6266;
    --dark-text:#F6F4EF;
    --dark-link:#FFD9A8;
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(12,46,42,.06);
    --shadow-2:0 8px 24px rgba(12,46,42,.10);
    --sidebar-w:240px;
  }
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:30px;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  .tabular{font-variant-numeric:tabular-nums;}

  .app-shell{min-height:100vh;}

  /* ============ 侧栏 ============ */
  .sidebar{
    position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
    background:var(--deep);display:flex;flex-direction:column;
    padding:24px 16px;z-index:60;
    border-right:1px solid rgba(246,244,239,.08);
  }
  .brand{display:flex;align-items:center;gap:12px;padding:4px 8px 22px;border-bottom:1px solid rgba(246,244,239,.12);margin-bottom:18px;}
  .brand-icon{
    width:40px;height:40px;flex:none;border-radius:10px;background:var(--main);
    color:#F6F4EF;font-size:16px;font-weight:700;display:grid;place-items:center;letter-spacing:0;
  }
  .brand-text{font-size:14px;font-weight:600;color:var(--dark-text);line-height:20px;letter-spacing:.01em;}
  .sidebar-nav{display:flex;flex-direction:column;gap:6px;}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:12px;height:44px;
    padding:0 12px;border-radius:10px;color:rgba(246,244,239,.72);
    font-size:14px;transition:background 180ms ease-out,color 180ms ease-out;
  }
  .nav-item svg{stroke:currentColor;flex:none;}
  .nav-item:hover{background:rgba(255,255,255,.06);color:var(--dark-text);}
  .nav-item.active{background:rgba(18,163,107,.22);color:var(--dark-text);font-weight:600;}
  .nav-item.active::before{
    content:"";position:absolute;left:-16px;top:8px;bottom:8px;width:3px;
    background:var(--main);border-radius:0 2px 2px 0;
  }
  .nav-item:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
  .sidebar-foot{margin-top:auto;padding:16px 8px 4px;font-size:12px;line-height:20px;color:rgba(246,244,239,.45);border-top:1px solid rgba(246,244,239,.12);}

  /* ============ 移动端顶栏与抽屉 ============ */
  .mobile-topbar{
    display:none;position:fixed;top:0;left:0;right:0;height:60px;
    background:var(--deep);z-index:65;align-items:center;justify-content:space-between;
    padding:0 18px;border-bottom:1px solid rgba(246,244,239,.12);
  }
  .mobile-brand{display:flex;align-items:center;gap:10px;color:var(--dark-text);font-size:14px;font-weight:600;}
  .mobile-brand .brand-icon{width:32px;height:32px;border-radius:8px;font-size:14px;}
  .topbar-actions{display:flex;align-items:center;gap:10px;}
  .icon-btn{
    width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.08);
    border:none;display:grid;place-items:center;cursor:pointer;color:var(--dark-text);
    transition:background 180ms ease-out;
  }
  .icon-btn:hover{background:rgba(255,255,255,.16);}
  .icon-btn:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
  .btn-mini{
    display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:var(--radius-btn);
    background:var(--act);color:#fff;font-size:14px;font-weight:600;letter-spacing:.02em;
    transition:background 180ms ease-out;
  }
  .btn-mini:hover{background:var(--act-hover);}
  .btn-mini:active{background:var(--act-active);}

  .drawer-overlay{
    position:fixed;inset:0;background:rgba(12,46,42,.45);opacity:0;pointer-events:none;
    transition:opacity 240ms ease-out;z-index:80;
  }
  .drawer-overlay.open{opacity:1;pointer-events:auto;}
  .drawer{
    position:fixed;top:0;right:0;width:284px;height:100vh;background:var(--deep);
    transform:translateX(100%);transition:transform 240ms ease-out;z-index:90;
    padding:24px 18px;display:flex;flex-direction:column;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid rgba(246,244,239,.14);}
  .drawer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(246,244,239,.6);}
  .drawer .nav-item.active::before{left:-18px;}

  /* ============ 主区域与容器 ============ */
  .main-area{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
  .container{width:100%;max-width:1120px;margin:0 auto;padding:0 40px;}
  .section{padding:80px 0;}
  .section-tight{padding:64px 0;}
  .section-alt{background:var(--sub-bg);}
  .sec-title{
    position:relative;padding-left:16px;margin:0;
    font-size:26px;line-height:36px;font-weight:600;letter-spacing:-.005em;
  }
  .sec-title::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
    background:var(--main);border-radius:2px;
  }
  .sec-sub{margin:16px 0 0;padding-left:16px;max-width:740px;font-size:15px;line-height:28px;color:var(--ink-2);}
  .sec-head{margin-bottom:32px;}

  /* ============ 标题带 ============ */
  .page-band{
    background:var(--deep);color:var(--dark-text);
    padding:56px 0 52px;border-bottom:1px solid rgba(246,244,239,.12);
  }
  .crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;line-height:22px;color:rgba(246,244,239,.6);margin-bottom:22px;}
  .crumb a{color:rgba(246,244,239,.82);transition:color 180ms ease-out;}
  .crumb a:hover{color:var(--dark-link);}
  .crumb .sep{opacity:.5;}
  .crumb .now{color:var(--dark-link);}
  .band-h1{margin:0;font-size:36px;line-height:44px;font-weight:700;letter-spacing:-.01em;color:var(--dark-text);}
  .band-lead{margin:18px 0 0;max-width:700px;font-size:16px;line-height:30px;color:rgba(246,244,239,.78);}
  .band-stats{display:flex;flex-wrap:wrap;gap:48px;margin-top:36px;padding-top:28px;border-top:1px solid rgba(246,244,239,.14);}
  .band-stat-num{font-size:28px;line-height:36px;font-weight:700;color:var(--dark-text);font-variant-numeric:tabular-nums;}
  .band-stat-label{font-size:12px;line-height:20px;color:rgba(246,244,239,.6);margin-top:4px;}

  /* ============ 大卡网格 ============ */
  .big-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-1);
    transition:box-shadow 180ms ease-out,transform 180ms ease-out,border-color 180ms ease-out;
    display:flex;flex-direction:column;
  }
  .big-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(18,163,107,.3);}
  .big-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--sub-bg);}
  .big-card-body{padding:24px;display:flex;flex-direction:column;flex:1;}
  .big-card-title{margin:0;font-size:19px;line-height:30px;font-weight:600;}
  .big-card-desc{margin:10px 0 0;font-size:14px;line-height:24px;color:var(--ink-2);}
  .card-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:18px;font-size:13px;line-height:22px;color:var(--ink-2);}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    background:rgba(12,46,42,.08);color:var(--deep);font-size:12px;line-height:24px;font-weight:500;
  }
  .meta-line{display:flex;align-items:center;gap:8px;}
  .meta-line::before{content:"";width:1px;height:12px;background:var(--line);}
  .card-arrow{margin-left:auto;color:var(--main);display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:600;transition:transform 180ms ease-out;}
  .big-card:hover .card-arrow{transform:translateX(4px);}

  /* ============ 清单卡 ============ */
  .check-list{display:grid;gap:16px;}
  .check-card{
    display:flex;gap:18px;padding:22px 24px;background:var(--card);
    border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
    transition:border-color 180ms ease-out,box-shadow 180ms ease-out;
  }
  .check-card:hover{border-color:rgba(18,163,107,.3);box-shadow:var(--shadow-2);}
  .step-num{
    width:28px;height:28px;flex:none;border-radius:999px;border:1px solid rgba(18,163,107,.45);
    color:var(--main);display:grid;place-items:center;font-size:13px;font-weight:600;
    font-variant-numeric:tabular-nums;margin-top:2px;
  }
  .check-title{margin:0;font-size:17px;line-height:26px;font-weight:600;}
  .check-desc{margin:8px 0 0;font-size:14px;line-height:26px;color:var(--ink-2);}

  /* ============ 步骤时间线 ============ */
  .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
  .flow-step{position:relative;padding-top:28px;}
  .flow-step::before{
    content:"";position:absolute;top:11px;left:0;right:0;height:1px;
    border-top:1px dashed rgba(12,46,42,.22);
  }
  .flow-step:last-child::before{right:calc(100% - 12px);}
  .flow-dot{
    position:absolute;top:0;left:0;width:22px;height:22px;border-radius:999px;
    background:var(--card);border:1px solid rgba(18,163,107,.5);
    color:var(--main);font-size:11px;font-weight:700;display:grid;place-items:center;
    font-variant-numeric:tabular-nums;
  }
  .flow-title{margin:0;font-size:17px;line-height:26px;font-weight:600;}
  .flow-desc{margin:8px 0 0;font-size:14px;line-height:26px;color:var(--ink-2);}

  /* ============ 图文区 ============ */
  .media-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
  .media-figure{margin:0;}
  .media-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);}
  .media-caption{margin:12px 0 0;font-size:13px;line-height:22px;color:var(--ink-2);}
  .point-list{list-style:none;margin:0;padding:0;display:grid;gap:18px;}
  .point-list li{position:relative;padding-left:26px;}
  .point-list li::before{
    content:"";position:absolute;left:0;top:11px;width:10px;height:10px;border-radius:3px;
    background:rgba(18,163,107,.85);
  }
  .point-title{font-size:16px;line-height:28px;font-weight:600;}
  .point-desc{margin:4px 0 0;font-size:14px;line-height:26px;color:var(--ink-2);}

  /* ============ FAQ ============ */
  .faq-box{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card);overflow:hidden;box-shadow:var(--shadow-1);}
  .faq-item + .faq-item{border-top:1px solid var(--line);}
  .faq-q{
    position:relative;width:100%;min-height:48px;display:flex;align-items:center;justify-content:space-between;
    gap:16px;padding:18px 24px;background:none;border:none;text-align:left;cursor:pointer;
    font-size:16px;line-height:28px;font-weight:500;color:var(--ink);
    transition:background 180ms ease-out,color 180ms ease-out;
  }
  .faq-q:hover{background:var(--sub-bg);}
  .faq-q:focus-visible{outline:2px solid var(--main);outline-offset:-2px;}
  .faq-q svg{flex:none;transition:transform 240ms ease-out;stroke:var(--ink-2);}
  .faq-item.open .faq-q{color:var(--deep);font-weight:600;}
  .faq-item.open .faq-q::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--main);border-radius:0 2px 2px 0;
  }
  .faq-item.open .faq-q svg{transform:rotate(180deg);stroke:var(--main);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease-out;}
  .faq-a p{margin:0;padding:0 24px 22px 24px;font-size:15px;line-height:28px;color:var(--ink-2);max-width:760px;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;letter-spacing:.02em;border:1.5px solid transparent;
    transition:background 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out,transform 180ms ease-out;
    cursor:pointer;
  }
  .btn:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
  .btn-primary{background:var(--act);color:#FFFFFF;border-color:var(--act);}
  .btn-primary:hover{background:var(--act-hover);border-color:var(--act-hover);}
  .btn-primary:active{background:var(--act-active);border-color:var(--act-active);}
  .btn-ghost-light{border-color:rgba(246,244,239,.55);color:var(--dark-text);background:transparent;}
  .btn-ghost-light:hover{background:rgba(255,255,255,.08);border-color:rgba(246,244,239,.8);}
  .btn-ghost-dark{border-color:var(--deep);color:var(--deep);background:transparent;}
  .btn-ghost-dark:hover{background:var(--sub-bg);}

  /* ============ CTA 条 ============ */
  .cta-band{background:var(--deep);color:var(--dark-text);padding:48px 0;}
  .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
  .cta-title{font-size:22px;line-height:34px;font-weight:600;color:var(--dark-text);}
  .cta-sub{margin:8px 0 0;font-size:14px;line-height:26px;color:rgba(246,244,239,.72);max-width:620px;}
  .cta-actions{display:flex;gap:12px;flex:none;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--deep);color:var(--dark-text);padding:64px 0 24px;border-top:1px solid rgba(246,244,239,.12);margin-top:auto;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;}
  .footer-brand-name{font-size:16px;font-weight:700;color:var(--dark-text);letter-spacing:.01em;}
  .footer-text{margin:14px 0 0;font-size:14px;line-height:26px;color:rgba(246,244,239,.68);}
  .footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(246,244,239,.55);margin-bottom:14px;}
  .footer-links{list-style:none;margin:0;padding:0;}
  .footer-links a{display:inline-block;line-height:32px;font-size:14px;color:rgba(246,244,239,.86);transition:color 180ms ease-out;}
  .footer-links a:hover{color:var(--dark-link);}
  .footer-links a:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
  .footer-bottom{
    margin-top:48px;padding-top:20px;border-top:1px solid rgba(246,244,239,.14);
    display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
    font-size:12px;line-height:22px;color:rgba(246,244,239,.55);
  }

  /* ============ 响应式 ============ */
  @media (min-width:1024px) and (max-width:1279px){
    :root{--sidebar-w:76px;}
    .sidebar{padding:20px 12px;}
    .brand{justify-content:center;padding:4px 0 20px;}
    .brand-text,.sidebar-foot,.nav-text{display:none;}
    .nav-item{justify-content:center;padding:0;gap:0;}
    .nav-item.active::before{left:-12px;}
  }
  @media (max-width:1023px){
    .sidebar{display:none;}
    .mobile-topbar{display:flex;}
    .main-area{margin-left:0;padding-top:60px;}
    .container{padding:0 28px;}
    .section{padding:56px 0;}
    .section-tight{padding:48px 0;}
    .band-h1{font-size:28px;line-height:38px;}
    .page-band{padding:36px 0 40px;}
    .band-stats{gap:32px;margin-top:28px;}
    .flow{grid-template-columns:repeat(2,1fr);gap:28px;}
    .flow-step:nth-child(odd)::before{right:-14px;}
    .flow-step:nth-child(even)::before{display:none;}
    .media-split{grid-template-columns:1fr;gap:28px;}
    .cta-inner{flex-direction:column;align-items:flex-start;}
    .cta-actions{width:100%;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:767px){
    .sec-title{font-size:20px;line-height:30px;}
    .band-h1{font-size:26px;line-height:34px;}
    .flow{grid-template-columns:1fr;}
    .flow-step::before{display:none;}
    .band-stats{gap:24px;}
  }
  @media (max-width:639px){
    .container{padding:0 18px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;}
    .cta-actions{flex-direction:column;}
    .cta-actions .btn{width:100%;}
    .big-card-body{padding:20px;}
  }