/* roulang page: index */
:root{
  --ink:#16181D;
  --ink-2:#3D434D;
  --muted:#6E7480;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E5E1D8;
  --tint:#FBFAF7;
  --brand:#0F6B57;
  --brand-2:#0A4A3C;
  --brand-soft:#E4F1EC;
  --accent:#FF6B35;
  --accent-soft:#FFEDE5;
  --deep:#10231F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,24,20,.06);
  --sh-2:0 8px 24px rgba(16,24,20,.10);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer}
input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
.section{padding:44px 0}
@media(min-width:768px){.section{padding:64px 0}}
.section-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.sec-title{position:relative;padding-left:14px;font-size:22px;font-weight:800;letter-spacing:-.01em;line-height:1.35}
.sec-title::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:2px;background:var(--brand)}
@media(min-width:768px){.sec-title{font-size:27px}}
.sec-desc{font-size:15px;color:var(--muted);margin-top:8px;max-width:640px}
.overline{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,245,239,.95);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 16px rgba(16,24,20,.07)}
.header-top{display:flex;align-items:center;gap:20px;height:70px;transition:height .18s ease-out}
.site-header.scrolled .header-top{height:62px}
.brand{display:flex;align-items:baseline;gap:10px;flex-shrink:0}
.brand-name{font-size:19px;font-weight:800;color:var(--brand-2);letter-spacing:-.01em}
.brand-name i{color:var(--accent);font-size:15px;margin-right:5px}
.brand-sub{display:none;font-size:12.5px;color:var(--muted)}
@media(min-width:1080px){.brand-sub{display:inline}}
.main-nav{display:none;align-items:center;gap:4px;margin-left:auto}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-link{padding:8px 13px;font-size:15px;font-weight:500;color:var(--ink-2);border-radius:8px;transition:color .18s ease-out,background .18s ease-out}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-2)}
.nav-link.active{color:var(--brand-2);font-weight:700;box-shadow:inset 0 -2px 0 0 var(--brand);border-radius:0}
.header-cta{display:none}
@media(min-width:1024px){.header-cta{display:inline-flex;margin-left:32px}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;margin-left:auto;color:var(--ink-2)}
@media(min-width:1024px){.nav-toggle{display:none}}
.chip-bar{border-top:1px solid var(--line);background:var(--tint)}
.chip-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.chip-scroll::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 15px;border-radius:999px;font-size:14px;white-space:nowrap;border:1px solid var(--line);background:#fff;color:var(--ink-2);transition:all .18s ease-out}
.chip:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-2)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .18s ease-out}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--tint)}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-light{background:#fff;color:var(--brand-2)}
.btn-light:hover{background:var(--brand-soft);transform:translateY(-1px)}
.btn-outline-light{border-color:rgba(255,255,255,.35);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand-2);transition:color .18s ease-out}
.link-arrow i{transition:transform .18s ease-out}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover i{transform:translateX(4px)}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand-2);transition:color .18s ease-out}
.btn-text i{transition:transform .18s ease-out}
.btn-text:hover{color:var(--accent)}
.btn-text:hover i{transform:translateX(4px)}
.icon-btn{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.24);color:#fff;transition:all .18s ease-out}
.icon-btn:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:44px 0 56px}
@media(min-width:768px){.hero{padding:64px 0 72px}}
.hero-shape{position:absolute;border-radius:40px;transform:rotate(-12deg);pointer-events:none}
.hero-shape.a{width:340px;height:340px;background:var(--brand-soft);top:-150px;left:-110px;opacity:.85}
.hero-shape.b{width:260px;height:260px;background:var(--accent-soft);bottom:-150px;left:36%;opacity:.9}
.hero-grid{position:relative;display:grid;gap:38px}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:52px;align-items:center}}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.hero h1{font-size:29px;line-height:1.32;font-weight:800;letter-spacing:-.02em}
@media(min-width:768px){.hero h1{font-size:36px}}
@media(min-width:1024px){.hero h1{font-size:42px}}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.8;color:var(--ink-2);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.hero-stat b{display:block;font-size:22px;font-weight:800;color:var(--brand-2);font-variant-numeric:tabular-nums}
.hero-stat span{font-size:13px;color:var(--muted)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-2)}
.hero-float{position:absolute;right:12px;bottom:-20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px 18px;box-shadow:var(--sh-2);min-width:200px}
.hero-float .hf-label{font-size:12px;color:var(--muted)}
.hero-float .hf-title{font-size:15.5px;font-weight:700;margin-top:2px}
.hero-float .hf-count{font-size:13px;color:var(--brand);font-weight:700;margin-top:4px}

/* ---------- tags ---------- */
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand);white-space:nowrap}
.tag-accent{background:var(--accent-soft);color:#C2410C}

/* ---------- 目录行 ---------- */
.dir-grid{display:grid;gap:0 36px;border-top:1px solid var(--line)}
@media(min-width:1024px){.dir-grid{grid-template-columns:1fr 1fr}}
.dir-row{display:flex;align-items:center;gap:16px;padding:20px 14px;border-bottom:1px solid var(--line);border-radius:10px;transition:background .18s ease-out}
.dir-row:hover{background:var(--tint)}
.dir-num{width:30px;flex:none;font-size:15px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.dir-main{flex:1;min-width:0}
.dir-title{font-size:17px;font-weight:700;line-height:1.45}
.dir-desc{font-size:13.5px;color:var(--muted);margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dir-count{font-size:13px;color:var(--muted);white-space:nowrap}
.dir-row>i{color:var(--brand);flex:none;transition:transform .18s ease-out}
.dir-row:hover>i{transform:translateX(4px)}

/* ---------- 精选 ---------- */
.feature-grid{display:grid;gap:22px}
@media(min-width:1024px){.feature-grid{grid-template-columns:2fr 1fr;align-items:start}}
.feature-main{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out}
.feature-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.feature-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.feature-body{padding:22px 24px 26px}
.feature-body h3{font-size:21px;font-weight:800;line-height:1.45;margin-top:12px}
.feature-body p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.feature-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--muted)}
.feature-side{display:grid;gap:16px;align-content:start}
.mini-card{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.mini-card img{width:120px;height:84px;object-fit:cover;border-radius:var(--r-img);flex:none}
.mini-card h3{font-size:15.5px;font-weight:700;line-height:1.5}
.mini-card p{font-size:13px;color:var(--muted);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 最新信息 ---------- */
.news-list{border-top:1px solid var(--line)}
.news-row{display:flex;align-items:center;gap:16px;padding:16px 12px;border-bottom:1px solid var(--line);transition:background .18s ease-out}
.news-row:hover{background:var(--tint)}
.news-thumb{width:96px;height:72px;flex:none;border-radius:var(--r-img);object-fit:cover;background:var(--line)}
@media(min-width:768px){.news-thumb{width:160px;height:108px}}
@media(min-width:768px){.news-row{gap:20px;padding:18px 14px}}
.news-main{flex:1;min-width:0}
.news-title{font-size:16.5px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(min-width:768px){.news-title{font-size:17px}}
.news-sum{font-size:14px;color:var(--muted);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.news-row>i{color:var(--muted);flex:none;transition:transform .18s ease-out,color .18s ease-out}
.news-row:hover>i{transform:translateX(4px);color:var(--brand)}
.news-foot{display:flex;justify-content:center;margin-top:26px}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;height:200px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--tint);color:var(--muted);text-align:center}
.empty-state i{font-size:22px;color:var(--brand)}

/* ---------- 相关推荐 ---------- */
.reco-wrap{position:relative}
.reco-scroll{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:none}
.reco-scroll::-webkit-scrollbar{display:none}
.reco-card{flex:0 0 250px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out}
.reco-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.reco-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.reco-card .rc-body{padding:14px 16px 18px}
.reco-card h3{font-size:15.5px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reco-card .rc-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:12px;font-size:12.5px;color:var(--muted)}
.reco-nav{display:flex;gap:8px}
.reco-nav button{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2);transition:all .18s ease-out}
.reco-nav button:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-2)}

/* ---------- FAQ ---------- */
.faq-list{max-width:920px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .18s ease-out}
.faq-item.open{border-color:#CFE3DA}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:700;text-align:left;line-height:1.5}
.faq-q i{color:var(--brand);flex:none;transition:transform .18s ease-out}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-band{background:var(--deep);color:#fff;border-radius:18px;padding:36px 26px;display:grid;gap:26px}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr auto;align-items:center;padding:48px}}
.cta-band h2{font-size:23px;font-weight:800;line-height:1.4}
@media(min-width:768px){.cta-band h2{font-size:27px}}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.74);margin-top:10px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);margin-top:64px}
.footer-grid{display:grid;gap:34px;padding:52px 0 0}
@media(min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr}}
.footer-brand{font-size:18px;font-weight:800;color:#fff}
.footer-brand i{color:var(--accent);margin-right:6px;font-size:15px}
.site-footer p{font-size:14px;line-height:1.85;margin-top:12px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-links li{margin-bottom:9px;font-size:14px}
.footer-links a{transition:color .18s ease-out}
.site-footer a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent)}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px}
.footer-chips a{padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.18);font-size:13px;transition:all .18s ease-out}
.footer-chips a:hover{background:rgba(255,255,255,.10);text-decoration:none}
.subscribe{display:flex;gap:10px;margin-top:14px}
.subscribe input{flex:1;height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;font-size:14px;outline:none;transition:all .18s ease-out}
.subscribe input::placeholder{color:rgba(255,255,255,.45)}
.subscribe input:focus{border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(228,241,236,.18)}
.subscribe button{height:44px;padding:0 18px;border-radius:var(--r-btn);background:var(--brand);color:#fff;font-size:14px;font-weight:600;transition:background .18s ease-out}
.subscribe button:hover{background:var(--brand-2)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding:20px 0;font-size:13px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:var(--paper);transform:translateX(100%);transition:transform .26s ease-out;display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2)}
.drawer-nav a{display:block;padding:15px 4px;font-size:17px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--brand-2)}
.drawer-foot{margin-top:auto;padding-top:26px}
.drawer-foot .btn{width:100%}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: article */
:root{
  --ink:#16181D;
  --ink-2:#3D434D;
  --muted:#6E7480;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E5E1D8;
  --tint:#FBFAF7;
  --brand:#0F6B57;
  --brand-2:#0A4A3C;
  --brand-soft:#E4F1EC;
  --accent:#FF6B35;
  --accent-soft:#FFEDE5;
  --deep:#10231F;
  --radius:14px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,24,20,.06);
  --shadow-2:0 8px 24px rgba(16,24,20,.10);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;transition:all var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--tint);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-2);}
.btn-light:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
  padding:6px 0;border-bottom:1px solid transparent;
}
.btn-link i{transition:transform var(--ease);}
.btn-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.btn-link:hover i{transform:translateX(4px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,245,239,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 12px rgba(16,24,20,.06);}
.header-top{display:flex;align-items:center;gap:24px;padding:14px 0;transition:padding var(--ease);}
.site-header.is-scrolled .header-top{padding:9px 0;}
.brand{display:flex;flex-direction:column;gap:2px;flex-shrink:0;}
.brand-name{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;letter-spacing:.4px;color:var(--ink);
}
.brand-name i{color:var(--brand);font-size:16px;}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
}
.header-cta{margin-left:32px;height:44px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:18px;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);}

/* 分段标签导航条 */
.chip-bar{border-top:1px solid var(--line);background:rgba(251,250,247,.9);}
.chip-scroll{
  display:flex;gap:10px;padding:10px 0;overflow-x:auto;scrollbar-width:none;
  -ms-overflow-style:none;scroll-snap-type:x proximity;
}
.chip-scroll::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;
  height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  font-size:14px;font-weight:500;color:var(--ink-2);scroll-snap-align:start;
  transition:all var(--ease);
}
.chip:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-2);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.chip .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.7;}

/* ============ 面包屑与页面头部 ============ */
.crumb{padding:28px 0 0;font-size:13.5px;color:var(--muted);}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb-list li{display:flex;align-items:center;gap:8px;}
.crumb-list li+li::before{content:"/";color:#C9C4B8;}
.crumb-list a:hover{color:var(--brand);}
.crumb-current{color:var(--ink-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章布局 ============ */
.article-wrap{padding:22px 0 64px;}
.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr);gap:40px;
}
.article-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);padding:32px 24px 40px;
}
@media (min-width:768px){.article-main{padding:48px 56px 56px;}}
@media (min-width:1024px){.article-main{padding:56px 80px 64px;}}

.article-head{max-width:760px;margin:0 auto;}
.section-flag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);letter-spacing:.4px;
}
.section-flag::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--brand);}
.article-title{
  margin:16px 0 20px;font-size:26px;line-height:1.42;font-weight:800;color:var(--ink);
  letter-spacing:-.2px;
}
@media (min-width:768px){.article-title{font-size:34px;}}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
  font-size:13.5px;color:var(--muted);padding-bottom:22px;border-bottom:1px solid var(--line);
}
.meta-chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:600;
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{font-size:12px;color:var(--muted);}

/* 正文 */
.article-body{max-width:760px;margin:34px auto 0;font-size:17px;line-height:1.9;color:var(--ink-2);}
@media (min-width:768px){.article-body{font-size:17.5px;}}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:14px;
  font-size:21px;line-height:1.5;font-weight:800;color:var(--ink);
}
@media (min-width:768px){.article-body h2{font-size:23px;}}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:3px;height:18px;border-radius:2px;background:var(--brand);
}
.article-body h3{margin:28px 0 12px;font-size:18.5px;line-height:1.55;font-weight:700;color:var(--ink);}
.article-body h4{margin:22px 0 10px;font-size:16.5px;font-weight:700;color:var(--ink);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(15,107,87,.35);}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.article-body img{border-radius:var(--radius-sm);margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--tint);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul{margin:0 0 1.2em;padding-left:0;}
.article-body ul>li{position:relative;padding-left:20px;margin-bottom:.55em;}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:1.5px;background:var(--brand);
}
.article-body ol{margin:0 0 1.2em;padding-left:0;counter-reset:item;}
.article-body ol>li{position:relative;padding-left:26px;margin-bottom:.55em;counter-increment:item;}
.article-body ol>li::before{
  content:counter(item)".";position:absolute;left:0;top:0;
  color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;
}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;}
.article-body thead th{background:var(--tint);color:var(--ink);font-weight:700;text-align:left;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:hover{background:var(--tint);}
.article-body code{
  background:var(--tint);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:15px;color:var(--brand-2);
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}
.article-body .lead{
  font-size:18px;line-height:1.85;color:var(--ink);font-weight:500;
}

.note-box{
  display:flex;gap:12px;margin:0 auto 8px;max-width:760px;
  padding:14px 18px;border-radius:var(--radius-sm);background:var(--accent-soft);
  font-size:14px;line-height:1.75;color:#8A3A17;
}
.note-box i{margin-top:3px;color:var(--accent);}
.note-box p{margin:0;}

.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  max-width:760px;margin:0 auto;padding:64px 20px;text-align:center;
  background:var(--tint);border:1px dashed var(--line);border-radius:var(--radius);
}
.empty-state i{font-size:26px;color:var(--muted);}
.empty-state p{font-size:16px;color:var(--ink-2);}

/* 标签 */
.article-tags{max-width:760px;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--line);}
.tags-label{font-size:13px;color:var(--muted);margin-bottom:12px;letter-spacing:.4px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13.5px;font-weight:600;
}
.tag:hover{background:var(--brand);color:#fff;}

/* 收藏分享条 */
.share-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;
  max-width:760px;margin:24px auto 0;padding:14px 18px;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--tint);
}
.share-bar span{font-size:13.5px;color:var(--muted);}
.share-btn{
  display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:13.5px;font-weight:600;color:var(--ink-2);
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.share-btn:active{transform:translateY(1px);}

/* 继续阅读 / 上一篇下一篇 */
.pager{display:grid;grid-template-columns:1fr;gap:14px;margin-top:40px;}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr;}}
.pager-card{
  display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface);border-left:3px solid transparent;transition:all var(--ease);
}
.pager-card:hover{border-left-color:var(--brand);background:var(--tint);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.pager-dir{font-size:12.5px;color:var(--muted);letter-spacing:.4px;}
.pager-title{margin-top:6px;font-size:16px;font-weight:700;color:var(--ink);line-height:1.55;}
.pager-desc{margin-top:4px;font-size:13.5px;color:var(--muted);line-height:1.7;}

/* 相关推荐（编号列表） */
.related-block{max-width:760px;margin:44px auto 0;padding-top:28px;border-top:1px solid var(--line);}
.block-title{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink);}
.block-title::before{content:"";width:3px;height:18px;border-radius:2px;background:var(--brand);}
.related-list{margin-top:16px;border-top:1px solid var(--line);}
.related-item{
  display:flex;align-items:center;gap:14px;padding:16px 4px;border-bottom:1px solid var(--line);
  transition:background-color var(--ease);
}
.related-item:hover{background:var(--tint);}
.related-no{font-size:14px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;flex:0 0 28px;}
.related-text{min-width:0;flex:1;}
.related-name{font-size:16px;font-weight:700;color:var(--ink);}
.related-desc{margin-top:3px;font-size:13.5px;color:var(--muted);line-height:1.7;}
.related-arrow{color:var(--muted);transition:transform var(--ease),color var(--ease);}
.related-item:hover .related-arrow{transform:translateX(4px);color:var(--brand);}

.back-links{display:flex;flex-wrap:wrap;gap:18px;max-width:760px;margin:34px auto 0;}

/* ============ 页脚 ============ */
.site-footer{margin-top:8px;background:var(--deep);color:rgba(255,255,255,.72);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:800;color:#fff;}
.footer-brand i{color:var(--accent);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin-top:12px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.4px;margin-bottom:14px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;border-bottom:1px solid var(--accent);}
.footer-chips{display:flex;flex-wrap:wrap;gap:9px;}
.footer-chips a{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);font-size:13px;color:rgba(255,255,255,.72);
}
.footer-chips a:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4);}
.subscribe{display:flex;gap:8px;margin-top:16px;max-width:360px;}
.subscribe input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;font-size:14px;
}
.subscribe input::placeholder{color:rgba(255,255,255,.5);}
.subscribe input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,107,87,.35);}
.subscribe button{
  height:44px;padding:0 18px;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-size:14px;font-weight:700;
}
.subscribe button:hover{background:#E85B27;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式导航 ============ */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-cta{display:none;}
  .main-nav{
    position:fixed;inset:0;z-index:70;flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:88px 24px 40px;background:var(--paper);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:all var(--ease);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-link{font-size:17px;padding:14px 12px;border-radius:12px;}
  .nav-link.active::after{left:12px;right:auto;width:26px;bottom:8px;}
  .main-nav .nav-cta-mobile{
    display:inline-flex;margin-top:16px;height:48px;align-items:center;justify-content:center;
    background:var(--brand);color:#fff;border-radius:var(--radius-btn);font-weight:700;
  }
}
@media (min-width:1024px){.nav-cta-mobile{display:none;}}
@media (max-width:520px){
  .article-main{padding:24px 18px 32px;border-radius:12px;}
  .article-title{font-size:24px;}
  .brand-sub{display:none;}
  .share-bar{gap:8px;}
  .related-desc{display:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
    --ink:#16181D;
    --ink-2:#3D434D;
    --muted:#6E7480;
    --paper:#F7F5EF;
    --surface:#FFFFFF;
    --line:#E5E1D8;
    --tint:#FBFAF7;
    --brand:#0F6B57;
    --brand-2:#0A4A3C;
    --brand-soft:#E4F1EC;
    --accent:#FF6B35;
    --accent-soft:#FFEDE5;
    --deep:#10231F;
    --radius-card:14px;
    --radius-img:12px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(16,24,20,.06);
    --shadow-2:0 8px 24px rgba(16,24,20,.10);
    --ease:180ms ease-out;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:var(--radius-img)}
  a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
  h1,h2,h3,h4,p,ul,ol{margin:0}
  ul,ol{padding:0;list-style:none}
  input{font:inherit}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}
  .num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

  /* 顶部导航 */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,239,.95);
    backdrop-filter:saturate(150%) blur(8px);
    border-bottom:1px solid transparent;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 1px 12px rgba(16,24,20,.06)}
  .header-top{display:flex;align-items:center;gap:20px;height:74px;transition:height var(--ease)}
  .site-header.is-scrolled .header-top{height:66px}
  .brand{display:flex;align-items:baseline;gap:12px;flex-shrink:0}
  .brand-name{font-size:19px;font-weight:800;color:var(--brand-2);letter-spacing:.01em;display:inline-flex;align-items:center;gap:7px}
  .brand-name i{color:var(--accent);font-size:16px}
  .brand-sub{font-size:12.5px;color:var(--muted);display:none}
  @media (min-width:1080px){.brand-sub{display:inline}}
  .main-nav{display:none;margin-left:auto;align-items:center;gap:4px}
  @media (min-width:960px){.main-nav{display:flex}}
  .nav-link{
    position:relative;padding:9px 14px;border-radius:8px;
    font-size:15px;font-weight:500;color:var(--ink-2);
  }
  .nav-link:hover{background:var(--tint);color:var(--brand)}
  .nav-link.active{color:var(--brand);font-weight:700}
  .nav-link.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
    border-radius:2px;background:var(--brand);
  }
  .header-cta{display:none}
  @media (min-width:760px){.header-cta{display:inline-flex}}
  .nav-toggle{
    margin-left:auto;width:44px;height:44px;border-radius:10px;
    border:1px solid var(--line);background:var(--surface);color:var(--ink);
    display:inline-flex;align-items:center;justify-content:center;font-size:17px;
    transition:background-color var(--ease),border-color var(--ease);
  }
  .nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-2)}
  @media (min-width:960px){.nav-toggle{display:none}}
  .mobile-panel{
    display:none;border-top:1px solid var(--line);background:var(--surface);
  }
  .mobile-panel.is-open{display:block}
  @media (min-width:960px){.mobile-panel{display:none !important}}
  .mobile-panel .inner{padding:14px 0 18px}
  .mobile-panel a{
    display:block;padding:12px 14px;border-radius:10px;font-size:15.5px;color:var(--ink-2);
  }
  .mobile-panel a.active{background:var(--brand-soft);color:var(--brand-2);font-weight:700}
  .mobile-panel a:hover{background:var(--tint)}
  .mobile-panel .btn{margin-top:10px;width:100%;justify-content:center}

  /* 分段标签条 */
  .chip-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--tint)}
  .chip-scroll{
    display:flex;gap:8px;align-items:center;overflow-x:auto;padding:10px 0;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .chip-scroll::-webkit-scrollbar{display:none}
  .chip{
    flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
    height:36px;padding:0 15px;border-radius:999px;
    border:1px solid var(--line);background:var(--surface);
    font-size:14px;color:var(--ink-2);white-space:nowrap;
    transition:all var(--ease);
  }
  .chip:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-2)}
  .chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
  .chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
  .chip.is-active .dot{background:#fff}

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;white-space:nowrap;
    transition:all var(--ease);
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:var(--brand-2);transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
  .btn-outline:hover{background:var(--tint);transform:translateY(-1px)}
  .btn-text{
    height:44px;padding:0 6px;color:var(--brand);font-weight:600;font-size:15px;
    display:inline-flex;align-items:center;gap:7px;
  }
  .btn-text i{transition:transform var(--ease)}
  .btn-text:hover{color:var(--accent)}
  .btn-text:hover i{transform:translateX(4px)}
  .btn-lg{height:48px;padding:0 26px}

  /* 标签 */
  .badge{
    display:inline-flex;align-items:center;gap:5px;
    padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  }
  .badge-brand{background:var(--brand-soft);color:var(--brand-2)}
  .badge-accent{background:var(--accent-soft);color:#B8461F}

  /* 分类横幅 */
  .cat-hero{
    position:relative;overflow:hidden;
    background:linear-gradient(180deg,var(--tint),var(--paper));
    border-bottom:1px solid var(--line);
  }
  .cat-hero::before{
    content:"";position:absolute;top:-70px;right:-60px;width:340px;height:340px;
    background:var(--brand-soft);opacity:.75;transform:rotate(18deg);border-radius:48px;
  }
  .cat-hero::after{
    content:"";position:absolute;bottom:-90px;left:-50px;width:260px;height:260px;
    background:var(--accent-soft);opacity:.7;transform:rotate(-14deg);border-radius:44px;
  }
  .cat-hero .inner{
    position:relative;z-index:2;
    display:grid;gap:26px;align-items:center;padding:38px 0;
  }
  @media (min-width:900px){
    .cat-hero .inner{grid-template-columns:1.35fr .95fr;padding:44px 0;min-height:260px}
  }
  .crumb{font-size:13px;color:var(--muted);margin-bottom:14px}
  .crumb a:hover{color:var(--accent);text-decoration:underline}
  .crumb span.sep{margin:0 8px;color:#C6C1B6}
  .cat-hero h1{font-size:28px;line-height:1.3;font-weight:800;letter-spacing:-.01em}
  @media (min-width:900px){.cat-hero h1{font-size:40px}}
  .cat-hero .lede-line{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:560px}
  .hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
  .stat-pill{
    background:var(--surface);border:1px solid var(--line);border-radius:999px;
    padding:7px 14px;font-size:13.5px;color:var(--ink-2);box-shadow:var(--shadow-1);
  }
  .stat-pill strong{color:var(--brand-2);font-weight:700}
  .hero-figure{position:relative}
  .hero-figure img{
    width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);
    box-shadow:var(--shadow-2);
  }
  .hero-figure .float-tip{
    position:absolute;left:14px;bottom:14px;
    background:rgba(255,255,255,.95);border-radius:10px;padding:8px 13px;
    font-size:12.5px;color:var(--ink-2);box-shadow:var(--shadow-1);
    display:inline-flex;align-items:center;gap:7px;
  }
  .hero-figure .float-tip i{color:var(--accent)}

  /* 板块 */
  .section{padding:44px 0}
  @media (min-width:900px){.section{padding:64px 0}}
  .section-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
  .sec-title{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:-.01em}
  @media (min-width:900px){.sec-title{font-size:27px}}
  .sec-title::before{content:"";width:3px;height:18px;background:var(--brand);border-radius:2px}
  .sec-desc{margin-top:10px;font-size:14.5px;color:var(--muted);max-width:640px}
  .eyebrow{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.06em}

  .lede-card{
    background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand);
    border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-1);
  }
  .lede-card p+p{margin-top:14px}
  .lede-card p{color:var(--ink-2);font-size:15.5px;line-height:1.85}

  /* 分组编号列表 */
  .group{padding:0 0 6px}
  .group-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:6px}
  .group-head h3{font-size:18px;font-weight:700}
  .group-head .count{font-size:13px;color:var(--muted)}
  .rowlist{border-top:1px solid var(--line)}
  .row-item{
    display:grid;grid-template-columns:44px 1fr 20px;gap:14px;align-items:center;
    padding:16px 10px;border-bottom:1px solid var(--line);
    transition:background-color var(--ease);
  }
  .row-item:hover{background:var(--tint)}
  .row-item .idx{font-size:14px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
  .row-item .ttl{font-size:16px;font-weight:650}
  .row-item .meta{font-size:13px;color:var(--muted);margin-top:4px;display:flex;flex-wrap:wrap;gap:6px 10px}
  .row-item .meta .sep{color:#CFCABF}
  .row-item .arrow{color:var(--muted);font-size:13px;transition:transform var(--ease),color var(--ease)}
  .row-item:hover .arrow{transform:translateX(4px);color:var(--brand)}
  .row-item .meta .hi{color:var(--brand-2);font-weight:600}

  /* 精选横向紧凑列表 */
  .pick-list{display:grid;gap:16px}
  .pick-item{
    display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:14px;box-shadow:var(--shadow-1);transition:all var(--ease);
  }
  .pick-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#DCD7CB}
  .pick-item img{width:96px;height:72px;object-fit:cover;border-radius:10px}
  .pick-item h3{font-size:16.5px;font-weight:700;line-height:1.5}
  .pick-item p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7}
  .pick-item .tagline{margin-top:10px;display:flex;gap:8px;align-items:center;font-size:12.5px;color:var(--muted)}
  @media (min-width:900px){
    .pick-list{grid-template-columns:repeat(3,1fr)}
    .pick-item{grid-template-columns:1fr;align-items:start}
    .pick-item img{width:100%;height:auto;aspect-ratio:16/9}
  }

  /* FAQ */
  .faq{display:grid;gap:12px}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);overflow:hidden;
  }
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;text-align:left;font-size:16px;font-weight:650;
  }
  .faq-q:hover{background:var(--tint)}
  .faq-q .ico{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    background:var(--brand-soft);color:var(--brand-2);
    display:inline-flex;align-items:center;justify-content:center;
    font-size:12px;transition:transform var(--ease),background-color var(--ease);
  }
  .faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:var(--accent-soft);color:#B8461F}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out}
  .faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

  /* 底部动作带 */
  .back-cta{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:22px 24px;box-shadow:var(--shadow-1);
  }
  .back-cta .t{font-size:17px;font-weight:700}
  .back-cta .s{font-size:14px;color:var(--muted);margin-top:6px}
  .back-cta .actions{display:flex;gap:12px;flex-wrap:wrap}

  /* 页脚 */
  .site-footer{background:var(--deep);color:rgba(255,255,255,.72);margin-top:0}
  .footer-grid{display:grid;gap:34px;padding:52px 0 34px}
  @media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
  .footer-brand{color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;gap:8px;margin-bottom:14px}
  .footer-brand i{color:var(--accent)}
  .site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68)}
  .footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
  .footer-links li{margin-bottom:9px}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
  .footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:3px}
  .footer-chips{display:flex;flex-wrap:wrap;gap:8px}
  .footer-chips a{
    font-size:13px;padding:5px 11px;border-radius:999px;
    border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.74);
  }
  .footer-chips a:hover{border-color:var(--accent);color:#fff;background:rgba(255,107,53,.14)}
  .subscribe{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
  .subscribe input{
    flex:1 1 180px;height:44px;padding:0 14px;border-radius:var(--radius-btn);
    border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;
  }
  .subscribe input::placeholder{color:rgba(255,255,255,.5)}
  .subscribe input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,107,87,.35)}
  .subscribe button{
    height:44px;padding:0 18px;border-radius:var(--radius-btn);
    background:var(--brand);color:#fff;font-weight:600;font-size:14.5px;transition:background-color var(--ease);
  }
  .subscribe button:hover{background:var(--brand-2)}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.55);
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
  }

/* roulang page: category3 */
:root{
  --ink:#16181D;--ink-2:#3D434D;--muted:#6E7480;
  --paper:#F7F5EF;--surface:#FFFFFF;--line:#E5E1D8;--tint:#FBFAF7;
  --brand:#0F6B57;--brand-2:#0A4A3C;--brand-soft:#E4F1EC;
  --accent:#FF6B35;--accent-soft:#FFEDE5;--deep:#10231F;
  --r-card:14px;--r-img:12px;--r-btn:10px;
  --sh-1:0 1px 2px rgba(16,24,20,.06);
  --sh-2:0 8px 24px rgba(16,24,20,.10);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.75;font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,245,239,.96);
  backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-stuck{border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(16,24,20,.06);}
.header-top{display:flex;align-items:center;gap:18px;padding:16px 0;}
.site-header.is-stuck .header-top{padding:10px 0;}
.brand{display:flex;flex-direction:column;gap:2px;min-width:0;}
.brand-name{font-size:19px;font-weight:800;color:var(--brand-2);display:flex;align-items:center;gap:8px;}
.brand-name i{color:var(--accent);font-size:16px;}
.brand-sub{font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand-2);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;background:var(--brand);
}
.header-cta{margin-left:32px;flex:none;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;
}
.chip-bar{border-top:1px solid var(--line);background:var(--tint);}
.chip-scroll{display:flex;gap:10px;padding:10px 0;overflow-x:auto;scrollbar-width:none;}
.chip-scroll::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;gap:7px;flex:none;
  padding:7px 15px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-2);font-size:13.5px;font-weight:500;
}
.chip:hover{background:var(--brand-soft);border-color:#cfe4dc;color:var(--brand-2);}
.chip.is-active,.chip.is-active:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.chip.is-active .dot{background:#fff;}
@media(max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-cta{display:none;}
  .main-nav{
    position:fixed;inset:0 0 0 auto;width:min(84vw,340px);flex-direction:column;align-items:stretch;
    gap:4px;margin:0;padding:88px 20px 24px;background:var(--surface);
    border-left:1px solid var(--line);box-shadow:var(--sh-2);
    transform:translateX(102%);transition:transform var(--ease);z-index:70;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0;}
  .nav-link.active::after{display:none;}
  .main-nav .drawer-cta{
    margin-top:18px;display:block;text-align:center;background:var(--brand);color:#fff;
    padding:13px 18px;border-radius:var(--r-btn);font-weight:600;
  }
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{background:var(--tint);border-color:var(--ink-2);}
.btn-ghost{background:transparent;color:var(--brand-2);padding:0 4px;height:auto;}
.btn-ghost i{transition:transform var(--ease);}
.btn-ghost:hover{color:var(--accent);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-lg{height:48px;padding:0 26px;}

/* ---------- layout ---------- */
.section{padding:64px 0;}
.section.tight{padding:48px 0;}
.section-alt{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;gap:16px;justify-content:space-between;margin-bottom:28px;}
.section-title{font-size:26px;display:flex;align-items:center;gap:12px;}
.section-title::before{content:"";width:3px;height:20px;border-radius:2px;background:var(--brand);flex:none;}
.section-desc{font-size:14px;color:var(--muted);margin-top:8px;}
@media(max-width:767px){
  .section{padding:40px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-title{font-size:21px;}
}

/* ---------- hero ---------- */
.hero{padding:28px 0 0;}
.breadcrumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:18px;}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-decoration-color:var(--accent);}
.breadcrumb .sep{color:#c3bfb4;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;padding-bottom:48px;}
.hero-copy h1{font-size:38px;color:var(--ink);margin-bottom:16px;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
  color:var(--brand-2);background:var(--brand-soft);border-radius:999px;padding:5px 13px;margin-bottom:16px;
}
.hero-lead{font-size:16.5px;color:var(--ink-2);max-width:52ch;}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:26px;}
.hero-stat b{display:block;font-size:24px;color:var(--brand-2);font-weight:800;}
.hero-stat span{font-size:13px;color:var(--muted);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:28px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.media-chip{
  position:absolute;left:16px;bottom:16px;background:var(--surface);color:var(--brand-2);
  font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:999px;box-shadow:var(--sh-1);
  border:1px solid var(--line);
}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:24px;padding-bottom:36px;}
  .hero-copy h1{font-size:28px;}
}

/* ---------- key points ---------- */
.point-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.point-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);}
.point-col h3{font-size:18px;margin-bottom:6px;}
.point-col .col-hint{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.point-item{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line);}
.point-item:first-of-type{border-top:0;padding-top:0;}
.point-item i{
  width:34px;height:34px;flex:none;border-radius:10px;background:var(--brand-soft);color:var(--brand-2);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.point-item b{display:block;font-size:15.5px;margin-bottom:3px;}
.point-item p{font-size:14px;color:var(--muted);line-height:1.7;}
@media(max-width:820px){.point-grid{grid-template-columns:1fr;}}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 280ms ease-out;}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17.5px;}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:auto;padding-top:8px;}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;background:var(--brand-soft);color:var(--brand-2);}
.tag-accent{background:var(--accent-soft);color:#C8471A;}
@media(max-width:820px){.card-grid{grid-template-columns:1fr;}}

/* ---------- table ---------- */
.tbl-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
table{width:100%;border-collapse:collapse;}
th,td{text-align:left;padding:16px 22px;font-size:14.5px;border-top:1px solid var(--line);vertical-align:top;}
thead th{background:var(--tint);border-top:0;font-size:13.5px;color:var(--ink-2);font-weight:700;letter-spacing:.4px;}
tbody td:first-child{font-weight:600;color:var(--ink);}
tbody td{color:var(--ink-2);}
@media(max-width:640px){
  th,td{padding:13px 14px;font-size:13.5px;}
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .faq-icon{
  width:26px;height:26px;flex:none;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);font-size:12px;
  transition:transform var(--ease),background var(--ease);
}
.faq-item[open] summary .faq-icon{transform:rotate(180deg);background:var(--brand-soft);}
.faq-item summary:hover{color:var(--brand-2);}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ---------- light cta ---------- */
.cta-strip{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:var(--sh-1);
}
.cta-strip h3{font-size:19px;margin-bottom:6px;}
.cta-strip p{font-size:14px;color:var(--muted);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.icon-btn{
  display:inline-flex;align-items:center;gap:9px;height:44px;padding:0 18px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--tint);color:var(--ink-2);font-size:14.5px;font-weight:600;cursor:pointer;
  transition:all var(--ease);
}
.icon-btn:hover{background:var(--brand-soft);color:var(--brand-2);border-color:#cfe4dc;}

/* ---------- related chips ---------- */
.related-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.related-bar .chip{padding:9px 18px;font-size:14px;}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);padding:60px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{font-size:18px;font-weight:800;color:#fff;display:flex;align-items:center;gap:9px;margin-bottom:14px;}
.footer-brand i{color:var(--accent);}
.site-footer p{font-size:13.5px;line-height:1.85;margin-bottom:12px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-chips a{font-size:13.5px;color:rgba(255,255,255,.72);}
.footer-links a:hover,.footer-chips a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px;}
.footer-chips a{padding:5px 12px;border:1px solid rgba(255,255,255,.18);border-radius:999px;}
.footer-chips a:hover{background:rgba(255,255,255,.08);}
.subscribe{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap;}
.subscribe input{
  flex:1;min-width:170px;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;font-size:14px;
}
.subscribe input::placeholder{color:rgba(255,255,255,.5);}
.subscribe input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,107,87,.35);}
.subscribe button{
  height:44px;padding:0 18px;border-radius:var(--r-btn);border:0;background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:background var(--ease);
}
.subscribe button:hover{background:var(--brand-2);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.55);
}
@media(max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;}}

/* roulang page: category2 */
:root{
    --ink:#16181D;--ink-2:#3D434D;--muted:#6E7480;
    --paper:#F7F5EF;--surface:#FFFFFF;--line:#E5E1D8;--tint:#FBFAF7;
    --brand:#0F6B57;--brand-2:#0A4A3C;--brand-soft:#E4F1EC;
    --accent:#FF6B35;--accent-soft:#FFEDE5;--deep:#10231F;
    --r-card:14px;--r-img:12px;--r-btn:10px;
    --sh-1:0 1px 2px rgba(16,24,20,.06);
    --sh-2:0 8px 24px rgba(16,24,20,.10);
    --ease:180ms ease-out;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
  button,input{font:inherit}
  button{cursor:pointer}
  ul,ol,li{list-style:none;margin:0;padding:0}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.01em}
  p{margin:0}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}
  .num{font-variant-numeric:tabular-nums}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,239,.95);
    -webkit-backdrop-filter:saturate(160%) blur(10px);
    backdrop-filter:saturate(160%) blur(10px);
    border-bottom:1px solid transparent;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 1px 14px rgba(16,24,20,.07)}
  .header-top{display:flex;align-items:center;gap:20px;padding:14px 0;transition:padding var(--ease)}
  .site-header.is-stuck .header-top{padding:6px 0}

  .brand{display:flex;flex-direction:column;gap:2px;margin-right:auto;min-width:0}
  .brand-name{display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:800;color:var(--brand-2);letter-spacing:-.01em}
  .brand-name i{color:var(--accent);font-size:15px}
  .brand-sub{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

  .main-nav{display:flex;align-items:center;gap:4px}
  .nav-link{position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:600;color:var(--ink-2);white-space:nowrap;transition:color var(--ease),background var(--ease)}
  .nav-link:hover{color:var(--brand);background:var(--brand-soft)}
  .nav-link.active{color:var(--brand)}
  .nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease)}
  .btn:hover{transform:translateY(-1px)}
  .btn:active{transform:translateY(0)}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--brand-2);box-shadow:var(--sh-2)}
  .header-cta{height:48px;margin-left:32px;flex:0 0 auto}

  .chip-bar{border-top:1px solid var(--line);background:rgba(251,250,247,.85)}
  .chip-scroll{display:flex;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
  .chip-scroll::-webkit-scrollbar{display:none}
  .chip{display:inline-flex;align-items:center;gap:6px;flex:0 0 auto;height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:13.5px;font-weight:600;white-space:nowrap;transition:background var(--ease),color var(--ease),border-color var(--ease)}
  .chip:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand)}
  .chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
  .chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
  .chip.is-active .dot{background:#fff}

  .nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);margin-left:auto}
  .nav-toggle:hover{background:var(--brand-soft);color:var(--brand)}

  .mobile-panel{position:fixed;inset:0;z-index:80;display:none;flex-direction:column;padding:20px;background:var(--paper);overflow-y:auto}
  .mobile-panel.is-open{display:flex}
  .m-close{align-self:flex-end;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink)}
  .m-close:hover{background:var(--brand-soft);color:var(--brand)}
  .mobile-panel .m-link{padding:15px 4px;font-size:17px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
  .mobile-panel .m-link.active{color:var(--brand)}
  .mobile-panel .m-cta{margin-top:24px}

  /* ============ 分类页 Hero ============ */
  .cat-hero{padding:22px 0 20px;background:var(--paper);border-bottom:1px solid var(--line)}
  .cat-hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
  .crumbs{font-size:13px;color:var(--muted);margin-bottom:8px}
  .crumbs a:hover{color:var(--brand)}
  .crumbs .sep{margin:0 6px;color:var(--line)}
  .cat-hero h1{font-size:30px;font-weight:800;letter-spacing:-.02em}
  .cat-hero-desc{margin-top:8px;font-size:15px;color:var(--ink-2);max-width:720px}
  .cat-hero-badge{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--accent-soft);color:#B8430F;font-size:13px;font-weight:700;white-space:nowrap}

  /* ============ 子分类导航条 ============ */
  .subnav{background:var(--tint);border-bottom:1px solid var(--line)}
  .subnav .chip-scroll{padding:12px 0}

  /* ============ 板块通用 ============ */
  .section{padding:52px 0}
  @media (min-width:768px){.section{padding:64px 0}}
  .section-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
  .section-head h2{position:relative;padding-left:14px;font-size:26px}
  .section-head h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:2px;background:var(--brand)}
  .section-desc{margin-top:8px;font-size:14.5px;color:var(--muted);max-width:660px;line-height:1.7}
  .meta-note{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
  .link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
  .link-more i{transition:transform var(--ease)}
  .link-more:hover{color:var(--accent)}
  .link-more:hover i{transform:translateX(4px)}

  /* ============ 双栏目录 ============ */
  .index-grid{display:grid;grid-template-columns:1fr;gap:0}
  @media (min-width:900px){.index-grid{grid-template-columns:1fr 1fr;gap:0 48px}}
  .index-col{border-top:1px solid var(--line)}
  .index-row{display:flex;align-items:flex-start;gap:16px;padding:18px 12px;border-bottom:1px solid var(--line);transition:background var(--ease)}
  .index-row:hover{background:var(--tint)}
  .idx{flex:0 0 auto;min-width:26px;padding-top:2px;font-size:14px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
  .index-row h3{font-size:17px}
  .index-row p{margin-top:5px;font-size:14px;line-height:1.65;color:var(--muted)}
  .index-row > i{margin-left:auto;padding-top:7px;font-size:13px;color:var(--muted);transition:transform var(--ease),color var(--ease)}
  .index-row:hover > i{transform:translateX(4px);color:var(--brand)}

  /* ============ 时间线 ============ */
  .timeline{position:relative;padding-left:30px}
  .timeline::before{content:"";position:absolute;left:5px;top:10px;bottom:16px;width:2px;background:var(--line)}
  .tl-item{position:relative;padding-bottom:32px}
  .tl-item:last-child{padding-bottom:0}
  .tl-item::before{content:"";position:absolute;left:-30px;top:7px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--line);transition:background var(--ease),border-color var(--ease)}
  .tl-item.is-latest::before{background:var(--brand);border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
  .tl-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
  .tl-item h3{margin-top:4px;font-size:17.5px}
  .tl-item.is-latest h3{color:var(--brand-2)}
  .tl-item p{margin-top:6px;font-size:15px;color:var(--ink-2);max-width:780px}
  .tl-media{margin-top:14px;width:200px;max-width:100%;aspect-ratio:16/10;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden}
  .tl-media img{width:100%;height:100%;object-fit:cover}
  .tl-tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;margin-top:10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700}

  /* ============ 焦点图文 ============ */
  .focus-panel{display:grid;grid-template-columns:1fr;gap:30px;align-items:center;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1)}
  @media (min-width:900px){.focus-panel{grid-template-columns:1.15fr .85fr;gap:40px;padding:36px}}
  .badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:var(--accent-soft);color:#C2440F;font-size:12.5px;font-weight:700}
  .focus-panel h2{margin-top:14px;font-size:26px}
  .focus-panel > .focus-text > p{margin-top:12px;font-size:15.5px;color:var(--ink-2)}
  .tick-list{margin-top:18px;display:grid;gap:10px}
  .tick-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2)}
  .tick-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--brand)}
  .stats-row{display:flex;flex-wrap:wrap;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}
  .stat{flex:1 1 120px;padding-right:16px}
  .stat + .stat{border-left:1px solid var(--line);padding-left:16px}
  .stat b{display:block;font-size:24px;font-weight:800;color:var(--brand-2);font-variant-numeric:tabular-nums;line-height:1.3}
  .stat span{font-size:13px;color:var(--muted)}
  .focus-media{aspect-ratio:4/3;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:var(--tint)}
  .focus-media img{width:100%;height:100%;object-fit:cover}

  /* ============ CTA 带 ============ */
  .cta-band{background:var(--deep);color:#fff;padding:52px 0;border-top:1px solid rgba(255,255,255,.12)}
  .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
  .cta-band h2{font-size:26px;color:#fff}
  .cta-band p{margin-top:10px;max-width:560px;font-size:15px;color:rgba(255,255,255,.72)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  .btn-accent{height:48px;padding:0 24px;background:var(--accent);color:#fff}
  .btn-accent:hover{background:#E85B27}
  .btn-ghost-light{height:48px;padding:0 24px;background:transparent;border-color:rgba(255,255,255,.36);color:#fff}
  .btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.62)}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--deep);color:rgba(255,255,255,.72);padding:56px 0 0;border-top:1px solid rgba(255,255,255,.12)}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}}
  .footer-brand{display:flex;align-items:center;gap:8px;margin-bottom:12px;font-size:18px;font-weight:800;color:#fff}
  .footer-brand i{color:var(--accent)}
  .site-footer p{margin-bottom:12px;font-size:14px;line-height:1.8}
  .footer-title{margin-bottom:14px;font-size:14px;font-weight:700;color:#fff}
  .footer-links li{margin-bottom:10px}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
  .footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}
  .footer-chips{display:flex;flex-wrap:wrap;gap:8px}
  .footer-chips a{padding:5px 11px;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:12.5px;color:rgba(255,255,255,.72)}
  .footer-chips a:hover{color:#fff;border-color:var(--accent);background:rgba(255,255,255,.06)}
  .subscribe{display:flex;gap:8px;margin-top:6px}
  .subscribe input{flex:1;min-width:0;height:44px;padding:0 14px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:rgba(255,255,255,.06);color:#fff;font-size:14px}
  .subscribe input::placeholder{color:rgba(255,255,255,.45)}
  .subscribe input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,107,87,.4)}
  .subscribe button{height:44px;padding:0 16px;border:0;border-radius:10px;background:var(--brand);color:#fff;font-size:14px;font-weight:600;white-space:nowrap}
  .subscribe button:hover{background:var(--brand-2)}
  .footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:40px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55)}

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .main-nav{display:none}
    .header-cta{display:none}
    .nav-toggle{display:inline-flex}
  }
  @media (max-width:767px){
    .cat-hero h1{font-size:26px}
    .section-head h2{font-size:22px}
    .focus-panel h2,.cta-band h2{font-size:21px}
    .cat-hero-badge{margin-top:4px}
    .stat{flex:1 1 calc(50% - 8px);margin-bottom:12px;padding-right:0}
    .stat + .stat{border-left:0;padding-left:0}
    .stats-row{margin-top:18px}
    .tl-media{width:100%;max-width:260px}
  }
  @media (max-width:519px){
    .section{padding:38px 0}
    .cta-band{padding:40px 0}
    .cta-actions .btn{width:100%}
    .index-row{padding:16px 8px}
  }