/* roulang page: index */
:root{
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --ink:#14211F;
  --ink-2:#3A4744;
  --muted:#7A847F;
  --brand:#1F4A3F;
  --brand-2:#2E6B5A;
  --brand-soft:#DCE7E1;
  --accent:#E15A2B;
  --accent-2:#C94A1F;
  --accent-soft:#FBE6DC;
  --gold:#F2C14E;
  --ok:#2F7D5E;
  --line:#E3DCD0;
  --line-2:#CFC6B6;
  --sh-1:0 1px 2px rgba(20,33,31,.06);
  --sh-2:0 8px 24px -12px rgba(20,33,31,.18);
  --sh-3:0 18px 40px -18px rgba(20,33,31,.28);
  --r-card:14px;
  --r-lg:18px;
  --r-btn:10px;
  --r-img:12px;
  --max:1180px;
  --nav-h:118px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:var(--nav-h);
  background:var(--paper);
  color:var(--ink-2);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.35;}
h1,h2{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;font-weight:700;}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.25;}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--accent-soft);color:var(--ink);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶栏 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;}
.topbar{background:var(--surface);border-bottom:1px solid var(--line);height:68px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;gap:20px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);letter-spacing:.02em;flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:26px;height:26px;border-radius:8px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
  position:relative;flex:0 0 auto;
}
.brand-mark::after{content:"";position:absolute;right:4px;bottom:4px;width:5px;height:5px;border-radius:50%;background:var(--accent);}
.brand-text{font-size:19px;line-height:1;display:flex;align-items:baseline;gap:8px;color:var(--ink);}
.brand-text em{font-style:normal;font-size:13px;font-weight:600;color:var(--muted);letter-spacing:0;}
.search{flex:1 1 auto;max-width:320px;display:flex;align-items:center;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);overflow:hidden;transition:.2s ease;}
.search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.search input{flex:1;height:100%;border:0;background:transparent;padding:0 14px;font-size:14px;outline:none;}
.search input::placeholder{color:var(--muted);}
.search button{height:100%;border:0;background:transparent;color:var(--brand);font-size:14px;font-weight:600;padding:0 14px;}
.search button:hover{color:var(--accent);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);color:var(--ink);display:none;align-items:center;justify-content:center;font-size:18px;}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-soft);}

/* ---------- 频道行 ---------- */
.channel-bar{background:var(--brand);height:50px;}
.channel-inner{display:flex;align-items:center;gap:4px;height:50px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;flex:0 0 auto;display:flex;align-items:center;height:50px;padding:0 16px;
  color:rgba(255,255,255,.82);font-size:15px;font-weight:500;scroll-snap-align:start;white-space:nowrap;
}
.channel:hover{color:#fff;background:rgba(255,255,255,.08);}
.channel.active{color:#fff;font-weight:700;}
.channel.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--accent);}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:80;background:var(--surface);display:none;flex-direction:column;}
.drawer.open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 18px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);font-size:18px;}
.drawer-list{padding:8px 0;overflow-y:auto;}
.drawer-list a{display:flex;align-items:center;height:52px;padding:0 18px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-list a:hover{background:var(--surface-2);color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;
  text-decoration:none;line-height:1;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px);box-shadow:none;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{background:transparent;border-color:var(--line-2);color:var(--ink);}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);border:0;background:none;padding:6px 0;}
.btn-text .arrow{transition:transform .2s ease;color:var(--accent);}
.btn-text:hover{color:var(--accent);}
.btn-text:hover .arrow{transform:translateX(3px);}

/* ---------- 标签 ---------- */
.pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:500;letter-spacing:.01em;}
.pill-ghost{background:rgba(255,255,255,.16);color:#fff;}
.badge-pick{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--gold);color:var(--ink);font-size:12px;font-weight:600;}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink-2);font-size:13px;font-weight:500;transition:.2s ease;}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ---------- 板块 ---------- */
main{display:block;}
.section{padding:92px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--surface-2);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-head h2{display:flex;align-items:center;gap:12px;}
.sec-head h2::before{content:"";width:3px;height:22px;border-radius:2px;background:var(--accent);flex:0 0 auto;}
.sec-sub{max-width:760px;color:var(--muted);font-size:15px;margin:10px 0 0;line-height:1.8;}
.sec-title-group{max-width:820px;}

/* ---------- Hero ---------- */
.hero{padding-top:40px;}
.hero-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:540px;display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(20,33,31,.88) 0%,rgba(31,74,63,.72) 48%,rgba(31,74,63,.28) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;box-shadow:var(--sh-3);
}
.hero-inner{position:relative;z-index:1;padding:56px;max-width:660px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.hero-card h1{color:#fff;max-width:640px;}
.hero-sub{margin:16px 0 0;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18);}
.stat{min-width:118px;}
.stat .num{display:block;font-size:22px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.3;}
.stat .lab{display:block;font-size:12px;color:rgba(255,255,255,.7);}

/* ---------- 目录区 ---------- */
.directory{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;padding-top:72px;border-top:1px solid var(--line);}
.dir-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.dir-item{
  display:flex;align-items:center;gap:14px;padding:14px;border-radius:var(--r-card);
  border:1px solid transparent;background:transparent;transition:.25s ease;
}
.dir-item:hover{background:var(--surface-2);border-color:var(--line);transform:translateX(4px);color:var(--ink);}
.dir-num{
  width:40px;height:40px;flex:0 0 auto;border:1px solid var(--line-2);border-radius:10px;
  display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;transition:.25s ease;background:var(--surface);
}
.dir-item:hover .dir-num{background:var(--brand);border-color:var(--brand);color:#fff;}
.dir-name{font-size:16px;font-weight:600;color:var(--ink);display:block;}
.dir-desc{font-size:13px;color:var(--muted);display:block;line-height:1.6;}
.dir-arrow{margin-left:auto;color:var(--line-2);font-size:15px;}
.dir-item:hover .dir-arrow{color:var(--accent);}

/* ---------- 卡片 ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;overflow:hidden;display:flex;flex-direction:column;}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-2);}
.card:hover .thumb img{transform:scale(1.04);}
.thumb{overflow:hidden;background:var(--brand-soft);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;border-radius:0;}
.ratio-16-10{aspect-ratio:16/10;}
.ratio-4-3{aspect-ratio:4/3;}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.card h3{font-size:18px;}
.card h3 a{color:var(--ink);}
.card h3 a:hover{color:var(--accent);}
.card-desc{font-size:14px;color:var(--ink-2);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:6px;border-top:1px dashed var(--line);}
.card-meta .dot{color:var(--line-2);}
.card-feature{border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.card-feature h3{font-size:22px;}
.card-mini{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-1);transition:.25s ease;}
.card-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line);border-left-color:var(--brand);}
.card-mini h3{font-size:17px;}
.card-mini h3 a{color:var(--ink);}
.card-mini h3 a:hover{color:var(--accent);}
.card-mini .card-meta{border-top:0;margin-top:8px;padding-top:0;}

.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.feature-side{display:grid;gap:24px;}
.row-3{display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:24px;margin-top:24px;}

/* ---------- CMS 列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:.25s ease;}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-2);}
.post-card .thumb{aspect-ratio:16/10;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;min-height:196px;}
.post-body h3{font-size:17px;line-height:1.55;min-height:52px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a{color:var(--ink);}
.post-body h3 a:hover{color:var(--accent);}
.post-body .excerpt{font-size:14px;color:var(--ink-2);line-height:1.7;min-height:48px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.post-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:10px;border-top:1px dashed var(--line);flex-wrap:wrap;}
.empty-state{
  border:1px dashed var(--line-2);border-radius:var(--r-card);min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:40px;text-align:center;background:var(--surface);
}
.empty-state .empty-icon{width:26px;height:26px;border:2px solid var(--brand);border-radius:50%;position:relative;}
.empty-state .empty-icon::after{content:"";position:absolute;left:50%;top:50%;width:10px;height:2px;background:var(--brand);transform:translate(-50%,-50%);}
.empty-state p{font-size:14px;color:var(--muted);margin:0;}
.list-foot{display:flex;justify-content:center;margin-top:36px;}

/* ---------- 数据条 ---------- */
.metric-band{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;}
.metric{padding:28px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric .num{font-size:30px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;font-family:"Noto Serif SC","Songti SC",serif;}
.metric .lab{display:block;font-size:14px;color:var(--ink);margin-top:6px;font-weight:600;}
.metric .hint{display:block;font-size:13px;color:var(--muted);margin-top:2px;}

.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;}
.voice{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);}
.voice p{font-size:15px;color:var(--ink-2);}
.voice .who{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);}
.voice .avatar{width:36px;height:36px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex:0 0 auto;}
.voice .who span{font-size:13px;color:var(--muted);display:block;}
.voice .who strong{font-size:14px;color:var(--ink);display:block;font-weight:600;}

/* ---------- 横向轨道 ---------- */
.rail-wrap{position:relative;}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 18px;scrollbar-width:none;}
.rail::-webkit-scrollbar{display:none;}
.rail-card{flex:0 0 280px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:.25s ease;display:flex;flex-direction:column;}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-2);}
.rail-card:hover .thumb img{transform:scale(1.04);}
.rail-card .thumb{aspect-ratio:16/10;}
.rail-card .rail-body{padding:14px 16px 16px;}
.rail-card h4{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rail-card h4 a{color:var(--ink);}
.rail-card h4 a:hover{color:var(--accent);}
.rail-meta{font-size:12px;color:var(--muted);margin-top:8px;font-variant-numeric:tabular-nums;}
.rail-btn{
  position:absolute;top:38%;width:40px;height:40px;border-radius:50%;background:var(--surface);
  border:1px solid var(--line-2);color:var(--ink);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);z-index:2;font-size:16px;
}
.rail-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
.rail-btn.prev{left:-14px;}
.rail-btn.next{right:-14px;}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--brand);border-radius:var(--r-lg);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-2);position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:-40px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.05);}
.cta-band h3{color:#fff;font-size:22px;position:relative;z-index:1;}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;margin:8px 0 0;position:relative;z-index:1;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;position:relative;z-index:1;flex-wrap:wrap;}

/* ---------- FAQ ---------- */
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{width:28px;height:28px;flex:0 0 auto;border:1px solid var(--line-2);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--brand);transition:.22s ease;line-height:1;}
.faq-item.open .faq-icon{background:var(--accent);border-color:var(--accent);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);margin:0;max-width:860px;}
.faq-item.open .faq-a{}

/* ---------- 订阅表单 ---------- */
.subscribe{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px;box-shadow:var(--sh-1);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field label .req{color:var(--accent);margin-left:2px;}
.field input{width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;background:var(--paper);font-size:15px;outline:none;transition:.2s ease;}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:var(--surface);}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{color:#fff;font-size:20px;}
.footer-brand .brand-mark{background:var(--accent);}
.footer-brand .brand-mark::after{background:#fff;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;position:relative;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;}
.footer-contact li{font-size:14px;line-height:1.9;margin-bottom:8px;color:rgba(255,255,255,.72);}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:#fff;}
.to-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;background:var(--brand);
  color:#fff;border:0;display:none;align-items:center;justify-content:center;font-size:16px;z-index:70;box-shadow:var(--sh-2);
}
.to-top.show{display:flex;}
.to-top:hover{background:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .post-grid{grid-template-columns:repeat(3,1fr);}
  .rail-card{flex-basis:260px;}
}
@media (max-width:991px){
  .container{padding:0 24px;max-width:100%;}
  .search{display:none;}
  .icon-btn{display:flex;}
  .only-desktop{display:none;}
  .hero-card{min-height:440px;}
  .hero-inner{padding:40px;}
  .directory{grid-template-columns:1fr;gap:28px;padding-top:56px;}
  .feature-grid{grid-template-columns:1fr;}
  .row-3{grid-template-columns:1fr 1fr;}
  .row-3 .wide{grid-column:1 / -1;order:-1;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .metric-band{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .voice-grid{grid-template-columns:1fr 1fr;}
  .voice-grid > :last-child{grid-column:1 / -1;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
  .subscribe{grid-template-columns:1fr;gap:24px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
  .rail-btn{display:none;}
}
@media (max-width:767px){
  :root{--nav-h:110px;}
  body{font-size:15px;}
  .container{padding:0 18px;}
  .hero{padding-top:24px;}
  .hero-card{min-height:380px;border-radius:var(--r-card);
    background-image:linear-gradient(rgba(20,33,31,.92),rgba(20,33,31,.92)),url('/assets/images/backpic/back-1.webp');}
  .hero-inner{padding:28px 22px;}
  .hero-stats{gap:16px;}
  .stat{min-width:96px;}
  .channel{font-size:13px;padding:0 12px;}
  .channel.active::after{left:12px;right:12px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .dir-list{grid-template-columns:1fr;}
  .row-3{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;gap:18px;}
  .metric-band{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .voice-grid{grid-template-columns:1fr;}
  .rail-card{flex-basis:78vw;}
  .footer-grid{grid-template-columns:1fr;gap:8px;}
  .footer-col h4{font-size:16px;margin:24px 0 12px;}
  .footer-col a,.footer-contact li{display:block;line-height:48px;margin:0;border-bottom:1px solid rgba(255,255,255,.08);}
  .footer-contact li{line-height:1.9;padding:10px 0;}
  .faq-q{padding:18px;font-size:16px;min-height:56px;}
  .faq-a p{padding:0 18px 20px;}
  .cta-band{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .section{padding:48px 0;}
  .post-body{min-height:auto;}
}
@media (max-width:479px){
  .hero-card h1{font-size:28px;}
  .btn{padding:0 16px;}
  .stat .num{font-size:20px;}
}

/* roulang page: article */
:root{
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --ink:#14211F;
  --ink-2:#3A4744;
  --muted:#7A847F;
  --brand:#1F4A3F;
  --brand-2:#2E6B5A;
  --brand-soft:#DCE7E1;
  --accent:#E15A2B;
  --accent-soft:#FBE6DC;
  --gold:#F2C14E;
  --line:#E3DCD0;
  --line-2:#CFC6B6;
  --ok:#2F7D5E;
  --warn:#C98A17;
  --err:#C0392B;
  --sh-1:0 1px 2px rgba(20,33,31,.06);
  --sh-2:0 8px 24px -12px rgba(20,33,31,.18);
  --sh-3:0 18px 40px -18px rgba(20,33,31,.28);
  --r-card:14px;
  --r-cover:18px;
  --r-btn:10px;
  --r-img:12px;
  --sans:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.35;font-weight:700;}
p{margin:0 0 1.15em;}
ul,ol{margin:0 0 1.15em;padding-left:1.3em;}
button{font-family:inherit;}
::selection{background:var(--accent-soft);color:var(--ink);}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 32px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  box-shadow:0 1px 0 var(--line);
}
.topbar{border-bottom:1px solid var(--line);background:var(--surface);}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  text-decoration:none;
}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:26px;height:26px;
  border-radius:8px;
  background:var(--brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  position:relative;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:4px;bottom:4px;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--accent);
}
.brand-text{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.02em;
}
.brand-text em{
  font-style:normal;
  font-size:12px;
  font-weight:500;
  color:var(--muted);
  padding:2px 8px;
  border:1px solid var(--line-2);
  border-radius:999px;
  letter-spacing:.06em;
}
.search{
  display:flex;
  align-items:center;
  flex:1 1 auto;
  max-width:340px;
  height:40px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search:focus-within{
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
}
.search input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  padding:0 14px;
  font-size:14px;
  color:var(--ink);
  outline:none;
}
.search input::placeholder{color:var(--muted);}
.search button{
  height:100%;
  border:0;
  padding:0 18px;
  background:var(--brand);
  color:#fff;
  font-size:14px;
  cursor:pointer;
  transition:background .2s ease;
}
.search button:hover{background:var(--brand-2);}
.topbar-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex-shrink:0;
}
.icon-btn{
  width:44px;height:44px;
  border:1px solid var(--line-2);
  border-radius:var(--r-btn);
  background:var(--surface);
  color:var(--ink);
  font-size:18px;
  cursor:pointer;
  display:none;
  transition:background .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-soft);border-color:var(--brand);}

/* ---------- 频道条 ---------- */
.channel-bar{background:var(--brand);}
.channel-inner{
  display:flex;
  align-items:center;
  gap:6px;
  height:50px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  height:50px;
  padding:0 16px;
  font-size:14px;
  font-weight:500;
  color:rgba(255,255,255,.82);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.channel:hover{
  color:#fff;
  background:rgba(255,255,255,.08);
  text-decoration:none;
}
.channel.active{
  color:#fff;
  font-weight:700;
}
.channel.active::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:0;
  height:3px;
  border-radius:3px 3px 0 0;
  background:var(--accent);
}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--surface);
  display:none;
  flex-direction:column;
  padding:12px 0;
}
.drawer.open{display:flex;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:6px 18px 14px;
  border-bottom:1px solid var(--line);
}
.drawer-head .brand-text{font-size:17px;}
.drawer a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 18px;
  font-size:16px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  text-decoration:none;
}
.drawer a:hover{background:var(--surface-2);color:var(--brand);text-decoration:none;}
.drawer .drawer-close{
  width:44px;height:44px;
  border:1px solid var(--line-2);
  border-radius:var(--r-btn);
  background:var(--surface);
  color:var(--ink);
  font-size:18px;
  cursor:pointer;
}

/* ---------- 按钮 ---------- */
.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;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .18s ease,box-shadow .2s ease;
}
.btn:hover{text-decoration:none;}
.btn:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-accent:hover{background:#c94a1e;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{background:transparent;border-color:var(--line-2);color:var(--ink);}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:none;
  border:0;
  padding:0;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
}
.btn-text::after{content:"→";transition:transform .2s ease;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover::after{transform:translateX(3px);}

/* ---------- 标签 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:500;
  text-decoration:none;
}
.pill:hover{background:var(--brand);color:#fff;text-decoration:none;}
.badge-pick{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:var(--gold);
  color:var(--ink);
  font-size:12px;
  font-weight:600;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line-2);
  background:var(--surface);
  color:var(--ink-2);
  font-size:13px;
  text-decoration:none;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);text-decoration:none;}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ---------- 阅读进度 ---------- */
.read-progress{
  position:fixed;
  top:0;left:0;
  height:3px;
  width:0;
  background:var(--accent);
  z-index:100;
  transition:width .1s linear;
}

/* ---------- 文章主体 ---------- */
.article-shell{padding:36px 0 88px;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--line-2);}
.crumb .now{color:var(--ink);font-weight:500;}

.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
}
.article-main{min-width:0;}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line);}
.article-head .pill{margin-bottom:14px;}
.article-head h1{
  font-family:var(--serif);
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.3;
  letter-spacing:.01em;
  max-width:860px;
  margin-bottom:18px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.meta-row .dot{color:var(--line-2);}
.head-tools{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.tool-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border:1px solid var(--line-2);
  border-radius:var(--r-btn);
  background:var(--surface);
  color:var(--ink-2);
  font-size:14px;
  cursor:pointer;
  transition:all .2s ease;
}
.tool-btn:hover{border-color:var(--accent);color:var(--accent);}
.tool-btn.is-on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);}

.article-cover{
  margin:30px 0 0;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-cover figcaption{
  padding:10px 16px;
  font-size:12px;
  color:var(--muted);
  background:var(--surface);
  border-top:1px solid var(--line);
}

/* 目录 */
.toc{
  margin:30px 0 0;
  border:1px dashed var(--line-2);
  border-radius:var(--r-card);
  background:var(--surface);
  padding:18px 22px;
}
.toc-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.toc-head strong{font-size:15px;color:var(--ink);}
.toc-toggle{
  border:0;background:none;color:var(--muted);
  font-size:13px;cursor:pointer;
}
.toc-toggle:hover{color:var(--accent);}
.toc ol{
  margin:14px 0 0;
  padding-left:0;
  list-style:none;
  counter-reset:toc;
}
.toc li{
  counter-increment:toc;
  display:flex;
  gap:10px;
  padding:6px 0;
  font-size:14.5px;
  border-bottom:1px dotted var(--line);
}
.toc li:last-child{border-bottom:0;}
.toc li::before{
  content:counter(toc,decimal-leading-zero);
  color:var(--accent);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  flex-shrink:0;
}
.toc a{color:var(--ink-2);}
.toc a:hover{color:var(--accent);}
.toc.collapsed ol{display:none;}

/* 正文排版 */
.article-body{
  max-width:820px;
  margin-top:34px;
  font-size:17px;
  line-height:1.9;
  color:var(--ink-2);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-family:var(--serif);
  font-size:clamp(21px,2.4vw,28px);
  line-height:1.4;
  margin:40px 0 16px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;
  width:3px;height:22px;
  border-radius:2px;
  background:var(--accent);
}
.article-body h3{
  font-size:20px;
  margin:24px 0 12px;
  color:var(--ink);
}
.article-body h4{
  font-size:17px;
  margin:20px 0 10px;
  color:var(--ink);
}
.article-body ul,.article-body ol{
  padding-left:0;
  list-style:none;
  margin:0 0 1.2em;
}
.article-body ul li,.article-body ol li{
  position:relative;
  padding-left:22px;
  line-height:1.9;
  margin-bottom:8px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--accent);
}
.article-body ol{counter-reset:olist;}
.article-body ol li{counter-increment:olist;}
.article-body ol li::before{
  content:counter(olist,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  color:var(--accent);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  line-height:1.9;
}
.article-body blockquote{
  margin:24px 0;
  padding:20px 22px;
  background:var(--surface-2);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-img);
  margin:24px auto;
  border:1px solid var(--line);
}
.article-body a{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:4px;
}
.article-body a:hover{color:var(--accent);}
.article-body code{
  background:var(--surface-2);
  border-radius:4px;
  padding:2px 6px;
  font-size:14.5px;
  color:var(--brand);
}
.article-body pre{
  background:var(--ink);
  color:#E9E4DA;
  border-radius:var(--r-img);
  padding:18px 20px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--r-img);
  overflow:hidden;
}
.article-body th,.article-body td{
  border-bottom:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
}
.article-body th{background:var(--surface-2);color:var(--ink);font-weight:600;}
.article-body hr{
  border:0;
  border-top:1px dashed var(--line-2);
  margin:34px 0;
}

/* 标签与分享 */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:40px 0 0;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.share-band{
  margin-top:26px;
  background:var(--brand);
  border-radius:var(--r-card);
  padding:22px 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  position:relative;
  overflow:hidden;
}
.share-band::after{
  content:"";
  position:absolute;
  right:-40px;top:-40px;
  width:180px;height:180px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.10),rgba(255,255,255,0) 70%);
}
.share-band h3{
  color:#fff;
  font-size:18px;
  margin-bottom:4px;
}
.share-band p{
  margin:0;
  color:rgba(255,255,255,.76);
  font-size:14px;
}
.share-actions{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1;}
.share-actions .btn-outline{
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.share-actions .btn-outline:hover{
  background:#fff;
  border-color:#fff;
  color:var(--brand);
}

/* 继续浏览 */
.nextprev{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:34px;
}
.np-card{
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  min-height:76px;
}
.np-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-3);
  border-color:var(--brand-2);
  text-decoration:none;
}
.np-card .arrow{
  color:var(--accent);
  font-size:18px;
  flex-shrink:0;
}
.np-card .np-body{min-width:0;}
.np-card small{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin-bottom:2px;
}
.np-card strong{
  display:block;
  font-size:15px;
  color:var(--ink);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.np-card.right{justify-content:flex-end;text-align:right;}
.back-center{text-align:center;margin-top:28px;}

/* 空态 */
.empty-state{
  border:1px dashed var(--line-2);
  border-radius:var(--r-card);
  background:var(--surface);
  padding:56px 24px;
  text-align:center;
}
.empty-state .ico{
  width:44px;height:44px;
  margin:0 auto 16px;
  border-radius:12px;
  border:2px solid var(--brand);
  position:relative;
  opacity:.85;
}
.empty-state .ico::after{
  content:"";
  position:absolute;
  right:-6px;bottom:-6px;
  width:18px;height:2px;
  background:var(--accent);
  transform:rotate(-45deg);
}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:20px;}

/* 侧栏 */
.article-side{position:sticky;top:130px;display:grid;gap:20px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:16px;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h3::before{
  content:"";
  width:3px;height:16px;
  border-radius:2px;
  background:var(--accent);
}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{
  border-bottom:1px dotted var(--line);
  padding:11px 0;
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.6;
}
.side-list a:hover{color:var(--accent);text-decoration:none;}
.side-list .num{
  color:var(--accent);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  flex-shrink:0;
}
.side-note{
  font-size:13px;
  color:var(--muted);
  line-height:1.8;
  margin:0;
}
.side-cta{
  background:var(--surface-2);
  border:1px solid var(--line);
}
.side-cta .btn{width:100%;margin-top:8px;}

/* 相关推荐 */
.section{padding:0 0 88px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-family:var(--serif);
  font-size:clamp(21px,2.5vw,30px);
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.3em;
  width:3px;height:22px;
  border-radius:2px;
  background:var(--accent);
}
.section-head p{
  margin:6px 0 0;
  font-size:14px;
  color:var(--muted);
}
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.card-entry{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  text-decoration:none;
  height:100%;
}
.card-entry:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-3);
  border-color:var(--brand-2);
  text-decoration:none;
}
.card-thumb{
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--brand-soft);
}
.card-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.card-entry:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:16.5px;
  line-height:1.5;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body .desc{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{
  margin-top:auto;
  font-size:12.5px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:44px;height:44px;
  border-radius:50%;
  border:0;
  background:var(--brand);
  color:#fff;
  font-size:18px;
  cursor:pointer;
  display:none;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh-2);
  z-index:70;
  transition:background .2s ease,transform .2s ease;
}
.to-top.show{display:flex;}
.to-top:hover{background:var(--accent);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand-text{
  color:#fff;
  font-size:18px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{width:26px;height:26px;}
.footer-brand p{
  margin:0;
  color:rgba(255,255,255,.62);
  font-size:14px;
  line-height:1.85;
  max-width:320px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  color:rgba(255,255,255,.72);
  font-size:14px;
}
.footer-col a:hover{
  color:#fff;
  text-decoration:none;
  border-bottom:1px solid var(--accent);
  padding-bottom:2px;
}
.footer-contact li{
  color:rgba(255,255,255,.72);
  font-size:14px;
  line-height:1.8;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.8);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .article-side{position:static;}
  .grid-4{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:none;}
}
@media (max-width:991px){
  .search{display:none;}
  .icon-btn{display:inline-flex;align-items:center;justify-content:center;}
  .only-desktop{display:none;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .article-shell{padding:28px 0 64px;}
  .section{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .topbar-inner{height:60px;gap:12px;}
  .brand-text{font-size:17px;}
  .brand-text em{display:none;}
  .channel-inner{height:50px;}
  .channel{height:50px;padding:0 13px;font-size:13px;}
  .channel.active::after{left:13px;right:13px;}
  .article-head h1{font-size:26px;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .nextprev{grid-template-columns:1fr;}
  .np-card.right{justify-content:flex-start;text-align:left;flex-direction:row-reverse;}
  .np-card.right .np-body{text-align:right;}
  .grid-4{grid-template-columns:1fr;gap:16px;}
  .share-band{padding:20px;}
  .share-actions{width:100%;}
  .share-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-col h4{font-size:16px;}
  .site-footer{padding:48px 0 22px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:479px){
  .article-head h1{font-size:23px;}
  .head-tools{gap:8px;}
  .tool-btn{flex:1 1 auto;justify-content:center;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .crumb{font-size:12.5px;}
}

/* roulang page: category1 */
:root{
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --ink:#14211F;
  --ink-2:#3A4744;
  --muted:#7A847F;
  --brand:#1F4A3F;
  --brand-2:#2E6B5A;
  --brand-soft:#DCE7E1;
  --accent:#E15A2B;
  --accent-soft:#FBE6DC;
  --gold:#F2C14E;
  --line:#E3DCD0;
  --line-2:#CFC6B6;
  --ok:#2F7D5E;
  --sh-1:0 1px 2px rgba(20,33,31,.06);
  --sh-2:0 8px 24px -12px rgba(20,33,31,.18);
  --sh-3:0 18px 40px -18px rgba(20,33,31,.28);
  --r-card:14px;
  --r-big:18px;
  --r-btn:10px;
  --r-img:12px;
  --navh:118px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:136px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1,h2,h3,h4{
  margin:0;
  color:var(--ink);
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-weight:700;
  line-height:1.35;
}
h1{font-size:clamp(28px,4vw,46px);line-height:1.25}
h2{font-size:clamp(23px,2.8vw,34px)}
h3{font-size:20px;line-height:1.5}
h4{font-size:17px;line-height:1.5}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--accent-soft);color:var(--ink)}
::-webkit-scrollbar{height:8px;width:10px}
::-webkit-scrollbar-track{background:var(--surface-2)}
::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--brand-2)}

.container{max-width:1180px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:88px 0 0}
.section-tight{padding-top:64px}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.section-title h2{position:relative;padding-left:16px}
.section-title h2::before{
  content:"";position:absolute;left:0;top:.28em;width:3px;height:22px;border-radius:2px;background:var(--accent);
}
.section-sub{max-width:720px;color:var(--muted);font-size:15px;margin-top:8px}
.rule{height:1px;background:var(--line);border:0;margin:0}
.mono{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.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;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-accent:hover{background:#c94b20;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline{border-color:var(--line-2);color:var(--ink);background:transparent}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.btn-ghost-light{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-ghost-light:hover{background:#fff;color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;
}
.btn-text::after{content:"→";color:var(--accent);transition:transform .22s ease}
.btn-text:hover{color:var(--accent)}
.btn-text:hover::after{transform:translateX(3px)}

/* ---------- 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:500;letter-spacing:.02em;
}
.pill-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28)}
.badge-pick{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--gold);color:var(--ink);font-size:12px;font-weight:600}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2);
  font-size:14px;font-weight:500;transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.chip-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}

/* ---------- 顶部导航 ---------- */
.topbar{
  position:sticky;top:0;z-index:61;background:var(--surface);
  border-bottom:1px solid var(--line);height:68px;
}
.topbar-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;border-radius:8px;background:var(--brand);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;font-family:system-ui,sans-serif;
}
.brand-text{font-weight:700;color:var(--ink);font-size:17px;letter-spacing:.01em;display:flex;align-items:baseline;gap:8px}
.brand-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--muted)}
.search{display:flex;align-items:center;flex:1 1 auto;max-width:320px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface-2);overflow:hidden;margin-left:auto}
.search input{
  flex:1 1 auto;height:100%;border:0;background:transparent;padding:0 14px;font-size:14px;color:var(--ink);
  font-family:inherit;outline-offset:-2px;
}
.search input::placeholder{color:var(--muted)}
.search button{
  height:100%;padding:0 16px;border:0;background:var(--brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  font-family:inherit;transition:background .2s ease;
}
.search button:hover{background:var(--brand-2)}
.topbar-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.search + .topbar-actions{margin-left:0}
.icon-btn{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:var(--r-btn);
  background:var(--surface);color:var(--ink);font-size:18px;cursor:pointer;line-height:1;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}

.channel-bar{position:sticky;top:68px;z-index:60;background:var(--brand)}
.channel-inner{
  display:flex;align-items:center;gap:2px;height:50px;overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;height:50px;padding:0 16px;
  color:rgba(255,255,255,.82);font-size:15px;white-space:nowrap;scroll-snap-align:start;
  transition:color .2s ease,background .2s ease;
}
.channel:hover{color:#fff;background:rgba(255,255,255,.08)}
.channel.active{color:#fff;font-weight:700}
.channel.active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--accent)}

/* ---------- 抽屉菜单 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--surface);
  transform:translateY(-100%);transition:transform .3s ease;display:flex;flex-direction:column;
}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 18px;border-bottom:1px solid var(--line)}
.drawer-head .brand-text{font-size:16px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line-2);border-radius:var(--r-btn);background:var(--surface);
  font-size:20px;color:var(--ink);cursor:pointer;line-height:1;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent)}
.drawer-nav{padding:8px 18px;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink);
}
.drawer-nav a.active{color:var(--accent);font-weight:700}
.drawer-foot{margin-top:auto;padding:18px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}

/* ---------- Hero ---------- */
.hero{padding-top:26px}
.hero-inner{
  position:relative;min-height:360px;border-radius:var(--r-big);overflow:hidden;
  display:flex;align-items:center;padding:48px 52px;
  background-image:linear-gradient(100deg,rgba(20,33,31,.9) 0%,rgba(31,74,63,.75) 48%,rgba(31,74,63,.32) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--sh-3);
}
.hero-content{position:relative;max-width:660px;color:#fff}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:16px}
.crumbs a{color:rgba(255,255,255,.82)}
.crumbs a:hover{color:#fff}
.crumbs span{color:rgba(255,255,255,.45)}
.hero h1{color:#fff;margin-bottom:16px}
.hero-sub{font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap}
.stat{display:flex;flex-direction:column;gap:2px}
.stat b{font-size:24px;color:var(--accent);font-variant-numeric:tabular-nums;font-family:"Noto Serif SC",serif;line-height:1.2}
.stat span{font-size:12px;color:rgba(255,255,255,.72)}

/* ---------- 目录 ---------- */
.directory-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;padding-top:88px}
.directory-intro h2{position:relative;padding-left:16px;margin-bottom:14px}
.directory-intro h2::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:22px;border-radius:2px;background:var(--accent)}
.directory-intro p{color:var(--ink-2);font-size:15px}
.directory-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dir-item{
  display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:var(--r-card);
  border:1px solid transparent;background:var(--surface);box-shadow:var(--sh-1);
  transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.dir-item:hover{background:var(--surface-2);border-color:var(--line);transform:translateX(-4px);box-shadow:var(--sh-2);color:var(--ink-2)}
.dir-num{
  flex:0 0 auto;width:40px;height:40px;border:1px solid var(--line-2);border-radius:10px;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--muted);
  font-variant-numeric:tabular-nums;transition:all .22s ease;
}
.dir-item:hover .dir-num{background:var(--brand);border-color:var(--brand);color:#fff}
.dir-body{flex:1 1 auto;min-width:0}
.dir-body b{display:block;color:var(--ink);font-size:16px;font-weight:600}
.dir-body small{display:block;color:var(--muted);font-size:13px;line-height:1.6}
.dir-arrow{flex:0 0 auto;color:var(--line-2);font-size:16px;transition:color .2s ease,transform .2s ease}
.dir-item:hover .dir-arrow{color:var(--accent);transform:translateX(3px)}

/* ---------- 条目卡 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card-entry{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-entry:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-2)}
.card-feature{border-radius:var(--r-big);box-shadow:var(--sh-2)}
.thumb{position:relative;background:var(--brand-soft);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card-entry:hover .thumb img{transform:scale(1.04)}
.ratio-43{aspect-ratio:4/3}
.ratio-1610{aspect-ratio:16/10}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-feature .card-body{padding:28px 30px 30px}
.card-body h3{font-size:20px}
.card-feature h3{font-size:clamp(21px,2.2vw,26px)}
.card-desc{color:var(--ink-2);font-size:15px;line-height:1.8;margin:0}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;margin-top:auto;padding-top:6px}
.card-meta .dot{color:var(--line-2)}
.card-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px}
.card-link::after{content:"→";color:var(--accent);transition:transform .22s ease}
.card-entry:hover .card-link::after{transform:translateX(3px)}
.span-7{grid-column:span 7}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.side-stack{grid-column:span 5;display:grid;gap:24px}
.entry-mini{flex-direction:row;align-items:stretch}
.entry-mini .thumb{flex:0 0 132px;width:132px}
.entry-mini .card-body{padding:18px 20px}
.entry-mini h3{font-size:17px}
.entry-mini .card-desc{font-size:14px;line-height:1.7}

/* ---------- 使用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-mini{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  border-left:3px solid var(--accent);padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.card-mini h3{font-size:18px;margin-bottom:10px}
.card-mini p{font-size:15px;color:var(--ink-2);margin:0}

/* ---------- 更新节奏 ---------- */
.band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:88px;padding:72px 0}
.rhythm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.rhythm-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--sh-1)}
.rhythm-card b{display:block;font-size:30px;color:var(--accent);font-variant-numeric:tabular-nums;font-family:"Noto Serif SC",serif;line-height:1.2;margin-bottom:6px}
.rhythm-card h4{margin-bottom:8px}
.rhythm-card p{font-size:14px;color:var(--muted);margin:0}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq-item.open{border-color:var(--brand-2);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--brand-2)}
.faq-toggle{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;color:var(--ink-2);
  transition:all .22s ease;
}
.faq-item.open .faq-toggle{background:var(--accent);border-color:var(--accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand);border-radius:var(--r-big);padding:48px 52px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-3);
}
.cta-band h3{color:#fff;font-size:clamp(18px,2vw,24px);margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.8);font-size:15px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding:60px 0 36px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:16px 0 0;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;border-bottom:2px solid var(--accent);padding-bottom:2px}
.footer-contact li{color:rgba(255,255,255,.72);font-size:14px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- 返回顶部 ---------- */
#backTop{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  border:0;background:var(--brand);color:#fff;font-size:18px;cursor:pointer;line-height:1;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transition:all .25s ease;z-index:70;
}
#backTop.show{opacity:1;visibility:visible}
#backTop:hover{background:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  .directory-wrap{gap:32px}
  .entry-grid{gap:20px}
  .scene-grid,.rhythm-grid{gap:20px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .section{padding-top:64px}
  .topbar,.topbar-inner{height:64px}
  .channel-bar{top:64px}
  .search{max-width:220px}
  .hero-inner{padding:38px 34px;min-height:340px}
  .directory-wrap{grid-template-columns:1fr;gap:28px;padding-top:64px}
  .entry-grid{grid-template-columns:1fr}
  .span-7,.span-5,.span-6{grid-column:span 1}
  .side-stack{grid-column:span 1;grid-template-columns:1fr 1fr}
  .scene-grid,.rhythm-grid{grid-template-columns:1fr 1fr}
  .band{padding:56px 0;margin-top:64px}
  .cta-band{padding:36px 34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 28px}
  .site-footer{margin-top:72px}
}
@media (max-width:767px){
  :root{--navh:110px}
  body{font-size:15px}
  .container{padding:0 18px}
  .section{padding-top:48px}
  .topbar,.topbar-inner{height:60px}
  .channel-bar{top:60px}
  .channel{font-size:13px;padding:0 13px}
  .search,.only-desktop{display:none}
  .icon-btn{display:flex;align-items:center;justify-content:center}
  .topbar-actions{margin-left:auto}
  .brand-text{font-size:15px}
  .brand-text em{display:none}
  .hero{padding-top:16px}
  .hero-inner{min-height:330px;padding:28px 22px;border-radius:14px}
  .hero-sub{font-size:15px;margin-bottom:22px}
  .hero-stats{gap:18px}
  .stat b{font-size:20px}
  .directory-grid{grid-template-columns:1fr}
  .side-stack{grid-template-columns:1fr;gap:16px}
  .entry-grid{gap:16px}
  .entry-mini{flex-direction:column}
  .entry-mini .thumb{flex:0 0 auto;width:100%;aspect-ratio:16/10}
  .scene-grid,.rhythm-grid{grid-template-columns:1fr;gap:16px}
  .band{padding:44px 0;margin-top:48px}
  .faq-q{font-size:16px;padding:16px 16px;min-height:56px}
  .faq-a-inner{padding:0 16px 18px}
  .cta-band{padding:28px 22px;border-radius:14px}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:0;padding:32px 0 12px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12)}
  .footer-col h4{font-size:16px;line-height:48px;margin:0}
  .footer-col ul{padding-bottom:12px}
  .footer-brand{padding-bottom:20px}
  .site-footer{margin-top:56px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  #backTop{right:16px;bottom:16px}
  .section-title{margin-bottom:20px}
}
@media (max-width:479px){
  h1{font-size:26px}
  h2{font-size:22px}
  .hero-inner{min-height:300px;padding:24px 18px}
  .btn{width:100%;padding:0 16px}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .chip{height:32px;padding:0 13px;font-size:13px}
  .card-body{padding:18px 18px 20px}
  .card-feature .card-body{padding:20px 18px 22px}
}

/* roulang page: category3 */
:root{
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --ink:#14211F;
  --ink-2:#3A4744;
  --muted:#7A847F;
  --brand:#1F4A3F;
  --brand-2:#2E6B5A;
  --brand-soft:#DCE7E1;
  --accent:#E15A2B;
  --accent-soft:#FBE6DC;
  --gold:#F2C14E;
  --line:#E3DCD0;
  --line-2:#CFC6B6;
  --ok:#2F7D5E;
  --warn:#C98A17;
  --err:#C0392B;
  --sh-1:0 1px 2px rgba(20,33,31,.06);
  --sh-2:0 8px 24px -12px rgba(20,33,31,.18);
  --sh-3:0 18px 40px -18px rgba(20,33,31,.28);
  --r-card:14px;
  --r-cover:18px;
  --r-btn:10px;
  --r-img:12px;
  --container:1180px;
  --sans:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink-2);
  background:var(--paper);
  background-image:
    radial-gradient(circle at 12% 8%,rgba(20,33,31,.035) 0 1px,transparent 1px),
    radial-gradient(circle at 78% 42%,rgba(20,33,31,.03) 0 1px,transparent 1px);
  background-size:26px 26px,34px 34px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-family:var(--serif);font-weight:700}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.25}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600;font-family:var(--sans)}
h4{font-size:17px;line-height:1.5;font-weight:600;font-family:var(--sans)}
p{margin:0 0 1.15em}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--accent-soft);color:var(--ink)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:80px 0;scroll-margin-top:132px}
.section-tight{padding:56px 0}
.muted{color:var(--muted)}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface)}
.topbar{background:var(--surface);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;background:var(--brand);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-size:15px;font-weight:700;line-height:1;position:relative;
}
.brand-mark::after{content:"";position:absolute;right:4px;bottom:4px;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-weight:700;font-size:18px;color:var(--ink);font-family:var(--sans)}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em;margin-top:2px}
.search{display:flex;align-items:center;gap:8px;flex:1 1 auto;max-width:360px}
.search input{
  flex:1 1 auto;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);padding:0 14px;font-size:14px;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.search input::placeholder{color:var(--muted)}
.search input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}
.search button{
  height:40px;padding:0 16px;border:0;border-radius:var(--r-btn);background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;transition:background-color .2s ease,transform .2s ease;
}
.search button:hover{background:var(--brand-2)}
.search button:active{transform:translateY(1px)}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);color:var(--ink);font-size:18px;line-height:1;transition:border-color .2s ease,background-color .2s ease;
}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-soft)}
.channel-bar{background:var(--brand)}
.channel-inner{
  display:flex;align-items:stretch;gap:4px;height:50px;overflow-x:auto;
  scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;padding:0 16px;white-space:nowrap;scroll-snap-align:start;
  color:rgba(255,255,255,.82);font-size:14px;font-weight:500;transition:color .2s ease,background-color .2s ease;
}
.channel:hover{color:#fff;background:rgba(255,255,255,.08)}
.channel.active{color:#fff;font-weight:700;box-shadow:inset 0 -3px 0 var(--accent)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;font-family:var(--sans);cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-accent:hover{background:#c94c21;color:#fff;transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--brand);border-color:#fff}
.btn-text{height:auto;padding:0;background:none;border:0;color:var(--ink);font-weight:600}
.btn-text::after{content:"→";color:var(--accent);transition:transform .2s ease;margin-left:6px}
.btn-text:hover{color:var(--accent)}
.btn-text:hover::after{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:500;white-space:nowrap;
}
.pill-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28)}
.badge-pick{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--gold);color:var(--ink);font-size:12px;font-weight:600}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2);font-size:13px;transition:all .2s ease}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs span.sep{color:var(--line-2)}

/* ---------- Hero ---------- */
.hero{
  position:relative;margin-top:32px;border-radius:var(--r-cover);overflow:hidden;
  min-height:420px;display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(20,33,31,.9) 0%,rgba(31,74,63,.74) 48%,rgba(31,74,63,.32) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.hero-inner{position:relative;z-index:1;padding:56px 48px;max-width:720px;color:#fff}
.hero-pills{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.hero h1{color:#fff;margin-bottom:16px;max-width:640px}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.88);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.hero-stats{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats .stat{
  display:inline-flex;align-items:baseline;gap:6px;padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  font-size:13px;color:rgba(255,255,255,.86);
}
.hero-stats .stat b{font-size:17px;color:var(--gold);font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.32em;width:3px;height:22px;border-radius:2px;background:var(--accent)}
.sec-head p{margin:8px 0 0 16px;color:var(--muted);font-size:14px;max-width:640px}

/* ---------- 卖点卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-2)}
.feature-card .idx{
  width:40px;height:40px;border:1px solid var(--line-2);border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;transition:all .25s ease;
}
.feature-card:hover .idx{background:var(--brand);border-color:var(--brand);color:#fff}
.feature-card h3{margin-bottom:8px}
.feature-card p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ---------- 场景区 ---------- */
.band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.scene-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}
.scene-media{border-radius:var(--r-cover);overflow:hidden;box-shadow:var(--sh-2);position:relative}
.scene-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.scene-media figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:12px;color:rgba(255,255,255,.92);background:linear-gradient(180deg,transparent,rgba(20,33,31,.78))}
.scene-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.scene-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-2)}
.scene-item h4{margin-bottom:6px;display:flex;align-items:center;gap:8px}
.scene-item h4::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 6px}
.scene-item p{margin:0;font-size:13.5px;line-height:1.75;color:var(--ink-2)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:900px}
.timeline::before{content:"";position:absolute;left:143px;top:10px;bottom:10px;width:2px;background:var(--line)}
.tl-item{display:grid;grid-template-columns:96px 48px 1fr;align-items:start;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:14px;text-align:right;padding-right:16px}
.tl-date b{display:block;font-size:18px;color:var(--accent);font-weight:700}
.tl-dot{position:relative;width:12px;height:12px;border-radius:50%;background:var(--accent);border:2px solid #fff;box-shadow:0 0 0 1px var(--line-2);margin:18px auto 0}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-2)}
.tl-card h3{margin-bottom:6px}
.tl-card p{margin:0;font-size:14px;color:var(--ink-2)}

/* ---------- 横向轨道 ---------- */
.rail-wrap{position:relative}
.rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 18px;-ms-overflow-style:none;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 280px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-2)}
.rail-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.rail-card:hover .rail-thumb img{transform:scale(1.04)}
.rail-body{padding:16px 18px 18px}
.rail-body h3{font-size:17px;margin-bottom:8px}
.rail-meta{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.rail-nav{display:flex;gap:10px}
.rail-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);
  font-size:16px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.rail-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- FAQ ---------- */
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.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;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);font-family:var(--sans);transition:background-color .2s ease;
}
.faq-q:hover{background:var(--surface-2)}
.faq-sign{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--line-2);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;line-height:1;transition:all .22s ease;
}
.faq-item.open .faq-sign{background:var(--accent);border-color:var(--accent);color:#fff}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{margin:0;padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--brand);border-radius:var(--r-cover);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.cta-band h3{color:#fff;font-size:22px;margin-bottom:8px;font-family:var(--serif)}
.cta-band p{margin:0;color:rgba(255,255,255,.78);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line-2);border-radius:var(--r-card);padding:40px;text-align:center;background:var(--surface);
}
.empty-state .mark{width:24px;height:24px;margin:0 auto 12px;border:2px solid var(--brand);border-radius:6px}
.empty-state p{color:var(--muted);font-size:14px;margin-bottom:16px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:36px}
.footer-brand .brand-text{color:#fff;font-family:var(--sans);font-size:18px;flex-direction:row;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text .brand-mark{background:var(--brand-2)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0;max-width:300px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;font-family:var(--sans)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}
.footer-contact li{font-size:14px;line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- 返回顶部 ---------- */
#toTop{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;border:0;
  background:var(--brand);color:#fff;font-size:16px;display:none;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);z-index:70;transition:background-color .2s ease,transform .2s ease;
}
#toTop.show{display:inline-flex}
#toTop:hover{background:var(--accent);transform:translateY(-2px)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;background:var(--surface);z-index:90;display:flex;flex-direction:column}
.drawer[hidden]{display:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;border-bottom:1px solid var(--line)}
.drawer-head span{font-weight:700;color:var(--ink)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);font-size:20px;line-height:1;color:var(--ink)}
.drawer-nav{flex:1;overflow-y:auto}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 18px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink)}
.drawer-nav a:hover{background:var(--surface-2);color:var(--brand)}
.drawer-nav a.active{color:var(--accent);font-weight:700}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero{min-height:380px}
  .hero-inner{padding:44px 32px}
  .scene-layout{grid-template-columns:1fr;gap:28px}
  .scene-list{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:36px}
}
@media (max-width:767px){
  .search{display:none}
  .only-desktop{display:none !important}
  .icon-btn{display:inline-flex;align-items:center;justify-content:center}
  .topbar-inner{height:60px;gap:14px}
  .channel-inner{height:50px}
  .channel{font-size:13px;padding:0 13px}
  .hero{margin-top:20px;border-radius:14px;min-height:0}
  .hero-inner{padding:32px 22px}
  .hero-sub{font-size:15px}
  .section{padding:48px 0}
  .feature-grid{grid-template-columns:1fr;gap:14px}
  .scene-list{grid-template-columns:1fr}
  .timeline::before{left:12px}
  .tl-item{grid-template-columns:24px 1fr;gap:12px;padding-bottom:20px}
  .tl-date{grid-column:2;text-align:left;padding:0;display:flex;align-items:baseline;gap:8px}
  .tl-date b{font-size:15px}
  .tl-dot{grid-column:1;margin:14px 0 0 6px}
  .tl-card{grid-column:2}
  .rail-card{flex:0 0 78vw}
  .rail-nav{display:none}
  .faq-q{font-size:15.5px;padding:16px 18px;min-height:56px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:8px;padding-bottom:20px}
  .footer-col h4{margin:14px 0 8px}
  .footer-col a,.footer-contact li{display:block;line-height:48px}
  .footer-col ul li{margin-bottom:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .site-footer{margin-top:56px;padding:40px 0 24px}
  .cta-band{padding:28px 22px}
  #toTop{right:16px;bottom:16px}
}
@media (max-width:479px){
  body{font-size:15px}
  .container{padding:0 18px}
  h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --ink:#14211F;
  --ink-2:#3A4744;
  --muted:#7A847F;
  --brand:#1F4A3F;
  --brand-2:#2E6B5A;
  --brand-soft:#DCE7E1;
  --accent:#E15A2B;
  --accent-2:#C94B1F;
  --accent-soft:#FBE6DC;
  --gold:#F2C14E;
  --line:#E3DCD0;
  --line-2:#CFC6B6;
  --ok:#2F7D5E;
  --warn:#C98A17;
  --err:#C0392B;
  --sh-1:0 1px 2px rgba(20,33,31,.06);
  --sh-2:0 8px 24px -12px rgba(20,33,31,.18);
  --sh-3:0 18px 40px -18px rgba(20,33,31,.28);
  --r-card:14px;
  --r-lg:18px;
  --r-btn:10px;
  --r-img:12px;
  --container:1180px;
  --topbar-h:68px;
  --channel-h:50px;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  color:var(--ink-2);
  font:16px/1.85 var(--sans);
  letter-spacing:.01em;
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 20% 15%,rgba(31,74,63,.045) 0 1.2px,transparent 1.6px),
    radial-gradient(circle at 70% 60%,rgba(225,90,43,.04) 0 1.2px,transparent 1.6px);
  background-size:140px 140px,200px 200px;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--accent-soft);color:var(--ink)}
h1,h2{font-family:var(--serif);color:var(--ink);margin:0;letter-spacing:.01em}
h3,h4{font-family:var(--sans);color:var(--ink);margin:0}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.25;font-weight:700}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.5;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0}
ul{margin:0;padding:0}
section[id],div[id]{scroll-margin-top:calc(var(--topbar-h) + var(--channel-h) + 18px)}

/* ===== 容器与板块 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:92px 0}
.section--tight{padding:64px 0}
.section--alt{background:var(--surface-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.sec-title{position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.3em;width:3px;height:22px;border-radius:2px;background:var(--accent)}
.sec-sub{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.75;max-width:720px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font:600 15px/1 var(--sans);cursor:pointer;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.btn-text::after{content:"›";font-size:16px;transition:transform .22s ease}
.btn-text:hover{color:var(--accent)}
.btn-text:hover::after{transform:translateX(3px)}

/* ===== 标签 / 徽章 ===== */
.pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:500}
.badge-pick{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--gold);color:var(--ink);font-size:12px;font-weight:600}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 13px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);font-size:13px;color:var(--ink-2);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.chip:hover{border-color:var(--brand-2);color:var(--brand)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}

/* ===== 头部导航 ===== */
.site-header{position:relative;z-index:60}
.topbar{
  position:sticky;top:0;z-index:60;height:var(--topbar-h);
  background:var(--surface);border-bottom:1px solid var(--line);
}
.topbar-inner{display:flex;align-items:center;gap:20px;height:100%}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:26px;height:26px;border-radius:8px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:14px;position:relative;flex:0 0 auto;
}
.brand-mark::after{content:"";position:absolute;right:4px;bottom:4px;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.brand-text{display:inline-flex;align-items:baseline;gap:8px;font-size:17px;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--muted);padding-left:8px;border-left:1px solid var(--line)}
.search{
  display:flex;align-items:center;height:40px;width:300px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);overflow:hidden;
}
.search input{flex:1;height:100%;border:0;background:transparent;padding:0 14px;font:400 14px var(--sans);color:var(--ink);outline:none}
.search input::placeholder{color:var(--muted)}
.search button{height:100%;border:0;background:transparent;color:var(--brand);font:600 14px var(--sans);padding:0 14px;cursor:pointer}
.search button:hover{color:var(--accent)}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);color:var(--ink);font-size:18px;cursor:pointer;line-height:1;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.channel-bar{position:sticky;top:var(--topbar-h);z-index:55;height:var(--channel-h);background:var(--brand)}
.channel-inner{
  display:flex;align-items:center;gap:6px;height:100%;
  overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;display:inline-flex;align-items:center;height:100%;
  padding:0 16px;color:rgba(255,255,255,.82);font-size:14.5px;font-weight:500;scroll-snap-align:start;
}
.channel:hover{color:#fff;background:rgba(255,255,255,.08)}
.channel.active{color:#fff;font-weight:700}
.channel.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--accent)}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;display:none;flex-direction:column;
  background:var(--surface);padding:14px 18px;transform:translateX(100%);
  transition:transform .28s ease;
}
.drawer.open{transform:none;display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-size:16px;color:var(--ink)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);font-size:18px;cursor:pointer;color:var(--ink)}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer a{display:flex;align-items:center;height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink)}
.drawer a:hover{color:var(--accent)}

/* ===== 分类页首屏 ===== */
.cat-hero{padding:36px 0 10px}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb em{font-style:normal;color:var(--ink-2)}
.hero-card{
  display:grid;grid-template-columns:1.12fr .88fr;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-3);
}
.hero-copy{padding:44px 44px 40px}
.hero-title{font-size:clamp(28px,3.6vw,44px);line-height:1.24}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.8;color:var(--ink-2);max-width:560px}
.hero-actions{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
.hero-pills{list-style:none;margin:30px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:12px}
.hero-pills li{
  display:flex;flex-direction:column;gap:2px;padding:10px 16px;
  border:1px solid var(--line);border-radius:12px;background:var(--paper);
}
.hero-pills b{font-size:18px;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.3}
.hero-pills span{font-size:12px;color:var(--muted)}
.hero-media{position:relative;min-height:320px;background:var(--brand-soft)}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* ===== 筛选 + 双列条目 ===== */
.obs-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start}
.filter-panel{
  position:sticky;top:calc(var(--topbar-h) + var(--channel-h) + 20px);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.filter-block+.filter-block{margin-top:22px;padding-top:18px;border-top:1px dashed var(--line-2)}
.filter-block h3{font-size:15px;font-weight:600;margin-bottom:12px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.sort-list{list-style:none;display:flex;flex-direction:column;gap:6px}
.sort-list a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--ink-2)}
.sort-list a:hover{background:var(--surface-2);color:var(--ink)}
.sort-list li.on a{background:var(--brand-soft);color:var(--brand);font-weight:600}
.filter-note{margin-top:18px;font-size:12.5px;line-height:1.7;color:var(--muted)}
.filter-hint{margin-top:12px;font-size:12.5px;color:var(--accent)}

.entry-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.row-card{
  display:grid;grid-template-columns:160px minmax(0,1fr);gap:16px;padding:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.row-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-2)}
.row-thumb{position:relative;width:100%;aspect-ratio:16/11;border-radius:var(--r-img);overflow:hidden;background:var(--brand-soft)}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.row-card:hover .row-thumb img{transform:scale(1.04)}
.row-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.row-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;flex-wrap:wrap}
.row-card h3{font-size:17px;line-height:1.5}
.row-card h3 a{color:var(--ink)}
.row-card h3 a:hover{color:var(--accent)}
.row-sum{
  font-size:14px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-foot{
  margin-top:auto;display:flex;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.pager{display:flex;justify-content:center;gap:8px;margin-top:36px;flex-wrap:wrap}
.pager a{
  min-width:40px;height:40px;padding:0 12px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  font-size:14px;color:var(--ink-2);font-variant-numeric:tabular-nums;
}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager a.on{background:var(--brand);border-color:var(--brand);color:#fff}
.pager a.wide{width:auto}

/* ===== 观察维度 ===== */
.dim-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.dim-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.dim-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-2)}
.dim-num{
  width:40px;height:40px;margin-bottom:16px;display:grid;place-items:center;
  border:1px solid var(--line-2);border-radius:10px;
  color:var(--accent);font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.dim-card:hover .dim-num{background:var(--brand);border-color:var(--brand);color:#fff}
.dim-card h3{font-size:17px;margin-bottom:10px}
.dim-card p{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ===== 横向轨道 ===== */
.rail{position:relative}
.rail-track{
  display:flex;gap:20px;padding:4px 4px 16px;
  overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;
}
.rail-track::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 280px;scroll-snap-align:start;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-2)}
.rail-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rail-card:hover .rail-thumb img{transform:scale(1.04)}
.rail-body{padding:16px}
.rail-body h3{
  font-size:16px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rail-body h3 a{color:var(--ink)}
.rail-body h3 a:hover{color:var(--accent)}
.rail-meta{margin-top:10px;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.rail-nav{position:absolute;right:4px;top:-66px;display:flex;gap:8px}
.rail-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line-2);
  background:var(--surface);color:var(--ink);font-size:16px;cursor:pointer;line-height:1;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.rail-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ===== 查阅场景 ===== */
.scene{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}
.scene-media{aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--brand-soft)}
.scene-media img{width:100%;height:100%;object-fit:cover}
.scene-list{list-style:none;display:flex;flex-direction:column;gap:16px}
.scene-item{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;
  padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.scene-item:hover{border-color:var(--brand-2);box-shadow:var(--sh-2);transform:translateY(-2px)}
.scene-item .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);margin-top:9px}
.scene-item h3{font-size:17px;margin-bottom:6px}
.scene-item p{font-size:14px;line-height:1.7;color:var(--ink-2)}

/* ===== 收录流程 ===== */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line)}
.step{padding:26px 24px 26px 0;border-right:1px dashed var(--line-2)}
.step:last-child{border-right:0}
.step-num{font-family:var(--serif);font-size:30px;line-height:1;color:var(--accent);font-variant-numeric:tabular-nums}
.step h3{margin:14px 0 8px;font-size:17px}
.step p{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ===== FAQ ===== */
.faq-list{
  max-width:880px;margin:0 auto;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .22s ease;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  width:28px;height:28px;flex:0 0 auto;display:grid;place-items:center;
  border:1px solid var(--line-2);border-radius:50%;color:var(--brand);font-size:16px;line-height:1;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.faq-item[open] .faq-q{color:var(--accent)}
.faq-item[open] .faq-icon{background:var(--accent);border-color:var(--accent);color:#fff}
.faq-a{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ===== CTA 条带 ===== */
.cta-band{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:48px;border-radius:var(--r-lg);background:var(--brand);color:#fff;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 88% 18%,rgba(225,90,43,.24),transparent 56%);
}
.cta-band h3{color:#fff;font-family:var(--serif);font-size:23px;line-height:1.4}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:620px}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{position:relative;z-index:1;margin-top:96px;padding:64px 0 24px;background:var(--ink);color:rgba(255,255,255,.72)}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand-text{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px}
.footer-brand .brand-mark{background:var(--brand-2)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}
.footer-contact li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.66)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;width:44px;height:44px;border:0;border-radius:50%;
  background:var(--brand);color:#fff;font-size:18px;cursor:pointer;box-shadow:var(--sh-2);
  opacity:0;pointer-events:none;transition:opacity .25s ease,background .25s ease,transform .25s ease;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--accent);transform:translateY(-2px)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .container{max-width:960px}
  .dim-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .obs-layout{grid-template-columns:220px minmax(0,1fr);gap:24px}
  .entry-list{grid-template-columns:1fr}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .search{display:none}
  .search.open{
    display:flex;position:absolute;left:24px;right:24px;top:calc(var(--topbar-h) + 6px);
    width:auto;z-index:70;background:var(--surface);box-shadow:var(--sh-2);
  }
  .search-toggle{display:grid;place-items:center}
  .icon-btn{display:grid;place-items:center}
  .only-desktop{display:none}
  .hero-card{grid-template-columns:1fr}
  .hero-media{min-height:240px;order:-1}
  .hero-copy{padding:32px 28px 30px}
  .scene{grid-template-columns:1fr;gap:28px}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step{padding:22px 20px;border-right:0;border-bottom:1px dashed var(--line-2)}
  .step:nth-child(odd){padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  :root{--topbar-h:60px;--channel-h:50px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .cat-hero{padding:20px 0 0}
  .channel{font-size:13px;padding:0 12px}
  .channel.active::after{left:12px;right:12px}
  .hero-copy{padding:24px 20px 26px}
  .hero-sub{font-size:15px}
  .obs-layout{grid-template-columns:1fr;gap:20px}
  .filter-panel{position:static;padding:16px}
  .filter-block+.filter-block{margin-top:16px;padding-top:14px}
  .chip-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .chip-row::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto}
  .sort-list{flex-direction:row;overflow-x:auto;scrollbar-width:none}
  .sort-list li{flex:0 0 auto}
  .row-card{grid-template-columns:1fr;padding:12px}
  .row-thumb{aspect-ratio:16/10}
  .rail-card{flex:0 0 78vw}
  .rail-nav{display:none}
  .dim-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .step{padding:20px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-col a{display:flex;align-items:center;min-height:44px}
  .faq-q{min-height:56px;font-size:16px;padding:16px}
  .faq-a{padding:0 16px 18px}
  .cta-band{padding:28px 20px}
  .cta-band h3{font-size:20px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:480px){
  body{font-size:15px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions .btn{width:100%}
  .hero-pills li{flex:1 1 42%}
  .brand-text em{display:none}
}

/* roulang page: category4 */
:root{
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --ink:#14211F;
  --ink-2:#3A4744;
  --muted:#7A847F;
  --brand:#1F4A3F;
  --brand-2:#2E6B5A;
  --brand-soft:#DCE7E1;
  --accent:#E15A2B;
  --accent-soft:#FBE6DC;
  --gold:#F2C14E;
  --line:#E3DCD0;
  --line-2:#CFC6B6;
  --ok:#2F7D5E;
  --r-card:14px;
  --r-big:18px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,33,31,.06);
  --sh-2:0 8px 24px -12px rgba(20,33,31,.18);
  --sh-3:0 18px 40px -18px rgba(20,33,31,.28);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font:16px/1.85 system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  letter-spacing:.01em;
}
h1,h2,h3,h4{
  margin:0;
  color:var(--ink);
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",system-ui,serif;
  line-height:1.35;
}
p{margin:0}
img{max-width:100%;display:block}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input,button{color:inherit}
::selection{background:var(--accent-soft);color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:99;background:var(--surface);padding:8px 14px;border-radius:var(--r-btn);border:1px solid var(--line-2)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.topbar{background:var(--surface);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  position:relative;width:26px;height:26px;border-radius:8px;background:var(--brand);
  color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;font-family:system-ui,sans-serif;
  flex:none;
}
.brand-mark::after{content:"";position:absolute;right:4px;bottom:4px;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:700;color:var(--ink);font-size:17px;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.08em;margin-top:2px}
.search{display:flex;align-items:center;flex:1;max-width:320px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-btn);padding:0 4px 0 12px;height:40px;transition:border-color .2s ease,box-shadow .2s ease}
.search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;height:100%}
.search input::placeholder{color:var(--muted)}
.search button{border:0;background:var(--brand);color:#fff;border-radius:8px;height:30px;padding:0 14px;font-size:13px;transition:background .2s ease}
.search button:hover{background:var(--brand-2)}
.topbar-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line-2);background:var(--surface);
  color:var(--ink);display:none;place-items:center;font-size:18px;line-height:1;
}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-soft)}
.channel-bar{background:var(--brand);color:#fff}
.channel-inner{
  display:flex;align-items:stretch;gap:4px;height:50px;overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:flex;align-items:center;padding:0 16px;color:rgba(255,255,255,.82);
  font-size:15px;white-space:nowrap;scroll-snap-align:start;transition:background .2s ease,color .2s ease;
}
.channel:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
.channel.active{color:#fff;font-weight:700}
.channel.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--accent)}
.drawer{display:none}
.drawer.open{display:block;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 0 16px}
.drawer a{display:block;padding:14px 32px;font-size:16px;border-bottom:1px solid var(--line)}
.drawer a:last-child{border-bottom:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;
  text-decoration:none;cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-accent:hover{background:#c94b21;color:#fff;transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff;text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);background:none;border:0;padding:0}
.btn-text::after{content:"→";transition:transform .2s ease}
.btn-text:hover::after{transform:translateX(3px)}

.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:500;white-space:nowrap;
}
.pill-light{background:var(--surface-2);color:var(--ink-2)}
.badge-pick{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--gold);color:var(--ink);font-size:12px;font-weight:600}

/* ---------- 首屏 ---------- */
.page-banner{
  position:relative;margin-top:32px;border-radius:var(--r-big);overflow:hidden;
  background-image:linear-gradient(100deg,rgba(20,33,31,.92) 0%,rgba(31,74,63,.76) 48%,rgba(31,74,63,.3) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-banner .container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;max-width:1180px}
.page-banner .breadcrumb{color:rgba(255,255,255,.66);font-size:13px;margin-bottom:18px}
.page-banner .breadcrumb a{color:rgba(255,255,255,.66)}
.page-banner .breadcrumb a:hover{color:#fff;text-decoration:none}
.page-banner .breadcrumb .sep{margin:0 8px;color:rgba(255,255,255,.4)}
.page-banner .breadcrumb .current{color:#fff}
.page-banner .pill{background:rgba(255,255,255,.14);color:#fff;margin-bottom:16px}
.page-banner h1{
  color:#fff;font-size:clamp(28px,3.6vw,44px);line-height:1.25;max-width:760px;font-weight:700;
}
.banner-sub{color:rgba(255,255,255,.82);font-size:17px;margin-top:16px;max-width:620px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.stat-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.stat-pills li{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.12);color:rgba(255,255,255,.86);font-size:13px;
}
.stat-pills b{color:var(--gold);font-size:15px;font-variant-numeric:tabular-nums;font-family:system-ui,sans-serif}

/* ---------- 板块 ---------- */
.section{padding:88px 0;scroll-margin-top:132px}
.section-tight{padding:72px 0}
.section-alt{background:var(--surface-2)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px}
.section-title{font-size:clamp(23px,2.6vw,32px);position:relative;padding-left:14px}
.section-title::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:22px;border-radius:2px;background:var(--accent)}
.section-sub{color:var(--muted);font-size:15px;max-width:640px;margin-top:12px}
.section-alt .section-sub{color:var(--ink-2)}
.hr{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 清单 ---------- */
.catalog-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.catalog-head{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;padding:14px 18px;background:var(--paper);
  border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);letter-spacing:.04em;
}
.catalog-row{
  position:relative;display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
  padding:14px 18px;min-height:72px;border-bottom:1px solid var(--line);transition:background .25s ease;cursor:pointer;
}
.catalog-row:last-child{border-bottom:0}
.catalog-row:hover{background:var(--surface-2)}
.catalog-row:hover .row-title{color:var(--brand)}
.row-no{font-size:28px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;font-family:system-ui,sans-serif;line-height:1}
.row-title{font-size:18px;font-weight:600;transition:color .25s ease}
.row-summary{
  margin:0;font-size:14px;line-height:1.7;color:var(--muted);max-height:0;opacity:0;overflow:hidden;
  transition:max-height .28s ease,opacity .28s ease,margin .28s ease;
}
.catalog-row:hover .row-summary,.catalog-row:focus-within .row-summary{max-height:44px;opacity:1;margin-top:6px}
.row-meta{display:flex;align-items:center;gap:12px;justify-self:end}
.row-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;font-family:system-ui,sans-serif}
.catalog-foot{display:flex;justify-content:center;padding:26px;background:var(--paper);border-top:1px solid var(--line)}

/* ---------- 四段内容卡 ---------- */
.dim-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.dim-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.dim-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-2)}
.dim-card .dim-no{display:inline-grid;place-items:center;width:40px;height:40px;border:1px solid var(--line-2);border-radius:10px;font-size:15px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;margin-bottom:16px;transition:background .25s ease,color .25s ease,border-color .25s ease}
.dim-card:hover .dim-no{background:var(--brand);color:#fff;border-color:var(--brand)}
.dim-card h3{font-size:19px;margin-bottom:10px}
.dim-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.scene-item{
  display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;background:var(--surface);
  border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--r-card);padding:24px 26px;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-item h3{font-size:18px;margin-bottom:8px}
.scene-item p{font-size:14px;color:var(--muted);line-height:1.8}
.scene-item .scene-tag{font-size:12px;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:4px 12px;white-space:nowrap}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.flow-item{position:relative;padding-top:20px;border-top:2px solid var(--line-2)}
.flow-item::before{content:"";position:absolute;top:-6px;left:0;width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px var(--surface-2)}
.flow-item .step{font-size:13px;color:var(--muted);letter-spacing:.06em;font-variant-numeric:tabular-nums}
.flow-item h3{font-size:18px;margin:6px 0 10px}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 数据说明 ---------- */
.data-band{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;background:var(--brand);color:#fff;
  border-radius:var(--r-big);overflow:hidden;box-shadow:var(--sh-3);
}
.data-band .data-copy{padding:48px}
.data-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);padding-left:14px;position:relative}
.data-band h2::before{content:"";position:absolute;left:0;top:.3em;width:3px;height:22px;border-radius:2px;background:var(--accent)}
.data-band .data-sub{color:rgba(255,255,255,.78);font-size:15px;margin-top:14px;max-width:520px}
.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px}
.data-cell{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:18px 20px}
.data-cell b{display:block;font-size:28px;color:var(--gold);font-variant-numeric:tabular-nums;font-family:system-ui,sans-serif;line-height:1.2}
.data-cell span{font-size:13px;color:rgba(255,255,255,.72)}
.data-band .data-media{position:relative;min-height:340px}
.data-band .data-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}

/* ---------- FAQ ---------- */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  background:none;border:0;padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;
  font-size:15px;color:var(--ink-2);transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.open .faq-icon{background:var(--accent);color:#fff;border-color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-item.open .faq-a{max-height:260px}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  background:var(--brand);border-radius:var(--r-big);padding:44px 48px;box-shadow:var(--sh-3);
}
.cta-band h3{color:#fff;font-size:22px}
.cta-band p{color:rgba(255,255,255,.76);font-size:15px;margin-top:10px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px;padding:64px 0 28px}
.site-footer a{color:rgba(255,255,255,.72)}
.site-footer a:hover{color:#fff;text-decoration:none}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-text{display:flex;flex-direction:row;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;letter-spacing:.02em}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:320px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-col li{margin-bottom:12px;font-size:14px}
.footer-contact li{font-size:14px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.72);border-bottom:1px solid transparent}
.footer-bottom a:hover{border-bottom-color:var(--accent)}

/* ---------- 返回顶部 ---------- */
#toTop{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;border:0;
  background:var(--brand);color:#fff;font-size:18px;display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;z-index:70;box-shadow:var(--sh-2);
}
#toTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#toTop:hover{background:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 28px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .topbar-inner{height:62px;gap:16px}
  .search{display:none}
  .only-desktop{display:none}
  .icon-btn{display:grid}
  .page-banner{margin-top:24px}
  .page-banner .container{padding-top:44px;padding-bottom:44px}
  .section{padding:64px 0}
  .dim-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .scene-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .data-band{grid-template-columns:1fr}
  .data-band .data-media{min-height:260px;position:relative}
  .data-band .data-copy{padding:36px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .brand-text{font-size:16px}
  .brand-text em{display:none}
  .channel-inner{height:50px}
  .channel{font-size:13px;padding:0 13px}
  .page-banner{border-radius:14px}
  .page-banner .container{padding-top:34px;padding-bottom:34px}
  .banner-sub{font-size:16px}
  .btn{height:46px}
  .banner-actions .btn{flex:1 1 auto}
  .section{padding:48px 0}
  .section-tight{padding:44px 0}
  .section-head{margin-bottom:24px}
  .catalog-head{display:none}
  .catalog-row{grid-template-columns:48px 1fr;gap:8px 14px;padding:16px;min-height:0}
  .row-no{font-size:22px}
  .row-title{font-size:16px}
  .row-summary{max-height:none;opacity:1;margin-top:4px}
  .row-meta{grid-column:1 / -1;justify-self:start}
  .dim-grid{grid-template-columns:1fr;gap:14px}
  .scene-item{grid-template-columns:1fr;gap:10px}
  .flow{grid-template-columns:1fr;gap:22px}
  .data-band .data-copy{padding:26px}
  .data-grid{grid-template-columns:1fr;gap:12px}
  .faq-q{padding:18px;font-size:16px;min-height:56px}
  .faq-a p{padding:0 18px 18px}
  .cta-band{padding:28px 22px;border-radius:14px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .site-footer{margin-top:64px;padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-col li{margin-bottom:0}
  .footer-col li a{display:block;line-height:48px;border-bottom:1px solid rgba(255,255,255,.08)}
  .footer-col h4{margin-bottom:6px;font-size:16px}
  .footer-bottom{font-size:12px}
  #toTop{right:16px;bottom:18px}
}
@media (max-width:479px){
  body{font-size:15px}
  .page-banner h1{font-size:26px}
  .section-title{font-size:22px}
  .stat-pills li{height:32px;font-size:12px}
}