/* roulang page: index */
:root{
  --brand:#14564A;
  --brand-deep:#0B3A32;
  --brand-soft:#E4EFEA;
  --accent:#C4703A;
  --accent-soft:#F6E7DC;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --line:#E4DFD4;
  --text:#16211E;
  --muted:#4C5B57;
  --faint:#7E8B87;
  --ok:#2F7D5B;
  --warn:#B4541F;
  --err:#A8332B;
  --r-lg:14px;
  --r-md:10px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,33,30,.05), 0 8px 24px -12px rgba(16,33,30,.14);
  --sh-2:0 2px 4px rgba(16,33,30,.08), 0 16px 36px -14px rgba(16,33,30,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  text-align:left;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.005em;}
h1{font-size:34px;line-height:1.3;}
h2{font-size:26px;}
h3{font-size:20px;line-height:1.4;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 18px;padding-left:1.4em;line-height:1.85;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:46px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#AC5F2C;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;background:#954F22;}
.btn-outline{background:transparent;border:1.5px solid var(--brand);color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-light{background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.5);color:#F2F6F4;}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14.5px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);}
.link-arrow span{transition:transform .2s var(--ease);}
.link-arrow:hover span{transform:translateX(3px);}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:600;line-height:1;
}
.tag-outline{background:transparent;border:1px solid var(--line);color:var(--muted);}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(16,33,30,.35);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:76px;transition:height .25s var(--ease);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand-deep);color:#F2F6F4;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;letter-spacing:.02em;
  border:1px solid rgba(255,255,255,.16);
}
.brand-text{font-size:19px;font-weight:700;color:var(--brand-deep);letter-spacing:.005em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.search-box{
  flex:1 1 auto;max-width:340px;display:flex;align-items:center;gap:8px;
  height:42px;padding:0 8px 0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--bg);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(20,86,74,.12);background:#fff;}
.search-box svg{flex:0 0 auto;color:var(--faint);}
.search-box input{flex:1 1 auto;min-width:0;border:0;background:transparent;height:100%;font-size:15px;}
.search-box input:focus{outline:none;}
.search-box button{
  flex:0 0 auto;height:30px;padding:0 14px;border-radius:6px;background:var(--brand);color:#fff;font-size:14px;font-weight:600;
}
.search-box button:hover{background:var(--brand-deep);}
.hot-links{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.hot-label{font-size:13px;color:var(--faint);}
.hot-links a{
  font-size:13px;color:var(--muted);padding:5px 11px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;transition:all .2s var(--ease);white-space:nowrap;
}
.hot-links a:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand-soft);}
.topbar-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  display:none;align-items:center;justify-content:center;color:var(--brand-deep);background:#fff;
}
.icon-btn:hover{background:var(--brand-soft);}
.menu-toggle{display:none;}
.channelbar{border-top:1px solid var(--line);background:#fff;}
.channelbar-inner{display:flex;align-items:center;gap:16px;height:46px;}
.mini-brand{display:none;font-weight:700;color:var(--brand-deep);font-size:16px;white-space:nowrap;}
.channels{display:flex;align-items:center;gap:26px;overflow-x:auto;scrollbar-width:none;}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;display:inline-flex;align-items:center;height:46px;
  font-size:15.5px;font-weight:600;color:var(--muted);white-space:nowrap;
}
.channel::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;border-radius:2px;
  transition:background .2s var(--ease);
}
.channel:hover{color:var(--brand);}
.channel.active{color:var(--brand-deep);}
.channel.active::after{background:var(--accent);}
.more-trigger{
  margin-left:auto;font-size:14px;color:var(--muted);border:1px solid var(--line);
  height:30px;padding:0 14px;border-radius:var(--r-pill);background:#fff;white-space:nowrap;
}
.more-trigger:hover{background:var(--brand-soft);color:var(--brand-deep);}
.anchorbar{background:var(--brand-deep);}
.anchorbar-inner{display:flex;align-items:center;gap:10px;height:44px;overflow-x:auto;scrollbar-width:none;}
.anchorbar-inner::-webkit-scrollbar{display:none;}
.anchor-link{
  font-size:14px;color:var(--secondary,#C9D8D3);padding:5px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.14);white-space:nowrap;transition:all .2s var(--ease);
}
.anchor-link:hover{background:rgba(255,255,255,.1);color:#fff;}
.anchor-link.active{background:var(--accent);border-color:var(--accent);color:#fff;}
.anchorbar .secondary-text{color:#C9D8D3;}

.site-header.compact .topbar-inner{height:0;overflow:hidden;padding:0;}
.site-header.compact .topbar{display:none;}
.site-header.compact .mini-brand{display:inline-flex;}
.site-header.compact .channelbar{border-top:0;}

/* 移动抽屉 & 搜索遮罩 */
.drawer-mask{position:fixed;inset:0;background:rgba(11,58,50,.5);opacity:0;visibility:hidden;transition:all .25s var(--ease);z-index:90;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);background:#fff;z-index:95;
  transform:translateX(102%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;box-shadow:-14px 0 40px -20px rgba(16,33,30,.5);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-title{font-weight:700;color:var(--brand-deep);}
.drawer-body{padding:18px 20px 32px;overflow-y:auto;}
.drawer-group-title{font-size:13px;color:var(--faint);margin:14px 0 8px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 12px;border-radius:var(--r-md);font-size:15.5px;font-weight:600;color:var(--muted);
}
.drawer-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.drawer-link.active{background:var(--brand-soft);color:var(--brand-deep);}
.drawer-cta{margin-top:22px;}
.search-layer{
  position:fixed;inset:0;background:rgba(247,245,240,.98);z-index:96;
  opacity:0;visibility:hidden;transition:all .25s var(--ease);padding:26px 20px;
}
.search-layer.open{opacity:1;visibility:visible;}
.search-layer .container{max-width:720px;}
.search-layer h3{margin-bottom:16px;color:var(--brand-deep);}
.search-layer .search-box{max-width:none;height:48px;background:#fff;}
.layer-hot{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;}
.layer-close{position:absolute;top:18px;right:20px;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;color:#F2F6F4;
  background-image:linear-gradient(105deg,rgba(11,58,50,.93) 0%,rgba(11,58,50,.82) 48%,rgba(20,86,74,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  min-height:520px;padding:72px 0;
}
.hero h1{color:#fff;margin-bottom:16px;}
.hero-sub{font-size:17px;color:#D9E6E1;margin-bottom:26px;max-width:460px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.hero-stat{
  display:flex;flex-direction:column;gap:2px;padding:10px 16px;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);min-width:118px;
}
.hero-stat b{font-size:18px;color:#fff;line-height:1.3;}
.hero-stat span{font-size:13px;color:#C9D8D3;}
.entry-card{
  background:#fff;color:var(--text);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-2);
  border:1px solid var(--line);
}
.entry-card h2{font-size:19px;color:var(--brand-deep);margin-bottom:6px;}
.entry-card p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.entry-search{display:flex;gap:8px;margin-bottom:16px;}
.entry-search input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--bg);
}
.entry-search input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(20,86,74,.1);}
.entry-links{display:grid;gap:10px;}
.entry-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  transition:all .2s var(--ease);
}
.entry-link:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-1px);}
.entry-link b{display:block;font-size:15px;color:var(--brand-deep);}
.entry-link small{font-size:13px;color:var(--faint);}

/* ===== 通用板块 ===== */
.section{padding:80px 0;}
.section-tint{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-dark{background:var(--brand-deep);color:#F2F6F4;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-dark p{color:#C9D8D3;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:10px;font-size:13.5px;font-weight:700;
  color:var(--accent);letter-spacing:.08em;margin-bottom:10px;
}
.section-kicker::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block;}
.section-desc{color:var(--muted);font-size:16px;max-width:660px;margin-top:10px;}
.section-dark .section-desc{color:#C9D8D3;}

/* 卖点区（非对称） */
.adv-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.adv-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.adv-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.adv-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.adv-main-body{padding:26px;}
.adv-main-body h3{margin-bottom:10px;color:var(--brand-deep);}
.adv-side{display:grid;gap:24px;}
.adv-strip{
  display:flex;gap:16px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.adv-strip:hover{transform:translateY(-2px);box-shadow:var(--sh-1);border-color:var(--brand-soft);}
.stamp{
  flex:0 0 auto;width:38px;height:38px;border:1.5px solid var(--accent);color:var(--accent);
  border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.adv-strip h3{font-size:18px;margin-bottom:6px;color:var(--brand-deep);}
.adv-strip p{font-size:14.5px;color:var(--muted);margin-bottom:8px;}

/* 演示区 */
.demo-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:center;}
.demo-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 24px;}
.demo-tab{
  padding:7px 16px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);
  font-size:14px;color:#C9D8D3;
}
.demo-tab.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600;}
.demo-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.demo-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:#D9E6E1;}
.demo-list li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:11px;border-radius:2px;background:var(--accent);}
.demo-figure{border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.16);box-shadow:0 22px 46px -24px rgba(0,0,0,.6);}
.demo-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.demo-figure figcaption{font-size:13px;color:#C9D8D3;padding:10px 14px;border-top:1px solid rgba(255,255,255,.14);}

/* 证据区 */
.proof-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:26px;}
.quote{
  background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:var(--r-md);
  padding:24px 26px;
}
.quote p{font-size:16.5px;color:var(--text);margin-bottom:14px;}
.quote-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--faint);}
.badges{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px;}
.badge-cell{
  display:flex;align-items:center;justify-content:center;gap:10px;height:82px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  font-size:14px;color:var(--muted);font-weight:600;text-align:center;padding:0 12px;
}
.badge-cell span.dot{width:9px;height:9px;border-radius:3px;background:var(--brand);flex:0 0 auto;opacity:.6;}
.number-bar{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.number-cell{background:#fff;padding:22px 24px;}
.number-cell b{display:block;font-size:26px;color:var(--accent);line-height:1.25;}
.number-cell small{font-size:13.5px;color:var(--faint);}

/* 价格区 */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 26px;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.plan-featured{border-top:3px solid var(--accent);transform:translateY(-12px);}
.plan-featured:hover{transform:translateY(-15px);}
.plan-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;}
.plan-head h3{font-size:19px;color:var(--brand-deep);}
.plan-for{font-size:14px;color:var(--faint);margin-bottom:16px;}
.plan-price{font-size:34px;font-weight:700;color:var(--accent);line-height:1.2;margin-bottom:18px;}
.plan-price small{font-size:14px;color:var(--faint);font-weight:500;margin-left:6px;}
.plan-list{list-style:none;padding:0;margin:0 0 22px;}
.plan-list li{
  font-size:15px;color:var(--muted);padding:11px 0;border-bottom:1px solid var(--line);
}
.plan-list li:last-child{border-bottom:0;}
.plan .btn{margin-top:auto;}
.plan-note{font-size:13.5px;color:var(--faint);margin-top:20px;}

/* 最新信息 */
.news-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:start;}
.news-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-feature img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.news-feature-body{padding:24px;}
.news-feature-body h3{font-size:21px;color:var(--brand-deep);margin:12px 0 10px;}
.news-feature:hover h3{color:var(--brand);}
.news-feature-body p{font-size:15px;color:var(--muted);margin-bottom:16px;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--faint);}
.news-list{display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;}
.news-item{
  display:flex;gap:16px;padding:18px 22px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:var(--brand-soft);}
.news-item:hover h3{color:var(--brand);}
.news-thumb{flex:0 0 auto;width:96px;border-radius:var(--r-md);overflow:hidden;background:var(--brand-soft);}
.news-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.news-item-body{min-width:0;}
.news-item-body h3{font-size:16.5px;margin-bottom:6px;color:var(--brand-deep);}
.news-item-body p{
  font-size:14px;color:var(--muted);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:46px 24px;text-align:center;
}
.empty-illus{
  width:120px;height:80px;margin:0 auto 18px;border:1.5px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(180deg,#fff 0%,var(--brand-soft) 100%);
}
.empty-state p{color:var(--muted);margin-bottom:16px;}

/* FAQ */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);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:18px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--brand-deep);text-align:left;
  transition:background .2s var(--ease);
}
.faq-q:hover{background:var(--brand-soft);}
.faq-q .arrow{
  flex:0 0 auto;width:22px;height:22px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(45deg);transition:transform .25s var(--ease);margin-top:-6px;
}
.faq-item.open .faq-q .arrow{transform:rotate(-135deg);margin-top:6px;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.open .faq-a{max-height:460px;}
.faq-a-inner{padding:0 24px 22px;font-size:16px;color:var(--muted);}

/* 尾 CTA */
.cta-band{background:var(--brand-deep);color:#F2F6F4;text-align:center;padding:78px 0;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:#C9D8D3;max-width:620px;margin:0 auto 26px;}
.cta-band .btn{margin-bottom:16px;}
.cta-band .secondary-link{display:block;font-size:14.5px;color:#C9D8D3;text-decoration:underline;}
.cta-band .secondary-link:hover{color:#fff;}

/* 页脚 */
.site-footer{background:#0A3129;color:#C9D8D3;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:#0F463C;}
.footer-brand b{color:#fff;font-size:17px;}
.site-footer p{font-size:14.5px;color:#A9BEB8;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14.5px;color:#C9D8D3;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:#8FA8A1;
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:70;display:flex;flex-direction:column;align-items:flex-end;gap:12px;
}
.float-cta .pill{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--accent);color:#fff;font-weight:600;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .28s var(--ease);
}
.float-cta .pill.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .pill:hover{background:#AC5F2C;color:#fff;}
.to-top{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .28s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-soft);}
.mobile-bar{display:none;}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .hot-links{display:none;}
}
@media (max-width:1023px){
  body{font-size:16px;}
  .search-box{max-width:260px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;min-height:auto;padding:60px 0;}
  .adv-grid{grid-template-columns:1fr;}
  .demo-grid{grid-template-columns:1fr;gap:32px;}
  .news-layout{grid-template-columns:1fr;}
  .plans{grid-template-columns:1fr;}
  .plan-featured{transform:none;}
  .plan-featured:hover{transform:translateY(-3px);}
  .proof-grid{grid-template-columns:1fr;}
  .badges{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  .section{padding:52px 0;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-mark{width:34px;height:34px;font-size:14px;}
  .brand-text{font-size:16px;white-space:normal;line-height:1.25;}
  .search-box,.quick-btn,.more-trigger{display:none;}
  .icon-btn{display:flex;}
  .channelbar{display:none;}
  .anchorbar-inner{height:42px;}
  .hero-sub{font-size:15.5px;}
  .entry-card{padding:20px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .number-bar{grid-template-columns:1fr;}
  .news-thumb{width:78px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:70;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);
    border-top:1px solid var(--line);box-shadow:0 -8px 24px -18px rgba(16,33,30,.6);
    transition:opacity .25s var(--ease),transform .25s var(--ease);
  }
  .mobile-bar.hide{opacity:0;transform:translateY(110%);pointer-events:none;}
  .mobile-bar .btn{height:44px;font-size:15px;}
  .site-footer{padding-bottom:76px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:419px){
  body{font-size:15.5px;}
  h1{font-size:23px;}
  h2{font-size:20px;}
  .brand-text{font-size:15px;}
  .btn{height:42px;padding:0 16px;font-size:15px;}
  .plan-price{font-size:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#14564A;
  --brand-deep:#0B3A32;
  --brand-soft:#E4EFEA;
  --accent:#C4703A;
  --accent-soft:#F6E7DC;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --line:#E4DFD4;
  --text:#16211E;
  --muted:#4C5B57;
  --meta:#7E8B87;
  --ok:#2F7D5B;
  --warn:#B4541F;
  --err:#A8332B;
  --r-lg:14px;
  --r-md:10px;
  --r-sm:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,33,30,.05),0 8px 24px -12px rgba(16,33,30,.14);
  --sh-2:0 2px 6px rgba(16,33,30,.08),0 18px 36px -14px rgba(16,33,30,.22);
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:.01em}
p{margin:0 0 18px}
ul,ol{margin:0}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.96);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 22px -18px rgba(16,33,30,.45)}
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:120;transition:width .12s linear}
.topbar{display:flex;align-items:center;gap:18px;height:52px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:var(--brand-deep);white-space:nowrap}
.logo:hover{color:var(--brand)}
.logo-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:8px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;letter-spacing:0
}
.search{position:relative;flex:0 1 320px;margin-left:auto;display:flex;align-items:center;min-width:150px}
.search input{
  width:100%;height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);
  padding:0 16px 0 40px;font-size:14px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease;
}
.search input::placeholder{color:var(--meta)}
.search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,86,74,.13)}
.search .ico{position:absolute;left:15px;font-size:13px;color:var(--meta);pointer-events:none}
.hot{display:flex;align-items:center;gap:8px}
.chip{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);background:var(--brand-soft);
  color:var(--brand);font-size:13px;line-height:1.5;white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.chip:hover{background:var(--brand);color:#fff}
.ghost-btn{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border:1.5px solid var(--brand);
  border-radius:var(--r-sm);color:var(--brand);font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.ghost-btn:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
.menu-btn{
  display:none;height:36px;padding:0 14px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  color:var(--muted);font-size:14px;cursor:pointer;transition:border-color .2s ease,color .2s ease;
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand)}
.channels{display:flex;align-items:center;gap:4px;height:44px;overflow-x:auto;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;transition:color .2s ease;
}
.channel::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:center;transition:transform .25s ease;
}
.channel:hover{color:var(--brand)}
.channel.active{color:var(--brand);font-weight:600}
.channel.active::after{transform:scaleX(1)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 0 16px}
.mobile-panel a{display:block;padding:11px 4px;font-size:15px;color:var(--muted);border-bottom:1px solid var(--line)}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a.active{color:var(--brand);font-weight:600}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--meta)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:#BEB6A6}
.breadcrumb .now{color:var(--meta)}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;padding:26px 0 76px;align-items:start}
.post{min-width:0}
.post-head{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:26px}
.post-tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-soft);
  color:var(--brand);font-size:13px;font-weight:600;margin-bottom:14px;
}
.post-head h1{font-size:32px;line-height:1.32;color:var(--brand-deep);margin-bottom:16px}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:13px;color:var(--meta)}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#CFC7B8}
.post-cover{margin:26px 0 0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:#fff}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-cover figcaption{font-size:13px;color:var(--meta);text-align:center;padding:10px 14px;background:#FBF9F5;border-top:1px solid var(--line)}
.post-body{font-size:17px;line-height:1.9;max-width:820px}
.post-body p{margin:0 0 20px}
.post-body h2{position:relative;font-size:26px;margin:36px 0 16px;padding-left:14px;color:var(--brand-deep)}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;background:var(--brand);border-radius:2px;
}
.post-body h3{font-size:20px;margin:28px 0 12px;color:var(--brand-deep)}
.post-body ul,.post-body ol{padding-left:1.4em;margin:0 0 20px;line-height:1.85}
.post-body li{margin-bottom:8px}
.post-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-soft);color:var(--muted);
  border-left:4px solid var(--brand);border-radius:0 var(--r-md) var(--r-md) 0;
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{border-radius:var(--r-md);margin:22px 0;width:100%}
.post-body figure{margin:22px 0}
.post-body figure figcaption{font-size:13px;color:var(--meta);text-align:center;margin-top:8px}
.post-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.post-body th,.post-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.post-body thead th{background:#F3F1EA;font-weight:600}
.post-body tbody tr:nth-child(even){background:#FBFAF6}
.post-body a{color:var(--brand);border-bottom:1px solid rgba(20,86,74,.35)}
.post-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.post-body code{background:#F2EEE7;border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px;font-family:ui-monospace,Menlo,Consolas,monospace}
.post-body pre{background:#F4F1EA;border:1px solid var(--line);border-radius:var(--r-md);padding:16px;overflow:auto;font-size:14px;line-height:1.7}
.post-body pre code{background:none;border:0;padding:0}
.post-body strong{color:var(--brand-deep)}
.post-foot{margin-top:38px;padding-top:26px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 20px -12px rgba(196,112,58,.75)}
.btn-primary:hover{background:#A95B2B;color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(196,112,58,.8)}
.btn-primary:active{transform:translateY(1px);background:#96501F}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;padding:48px 24px;text-align:center;
}
.empty-state .empty-art{
  width:74px;height:74px;margin:0 auto 18px;border-radius:18px;border:2px dashed #CFC7B8;
  display:grid;place-items:center;color:#BEB6A6;font-size:22px;
}
.empty-state h3{font-size:20px;color:var(--brand-deep);margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:112px;display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.side-title{font-size:15px;font-weight:700;color:var(--brand-deep);padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--accent)}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{border-bottom:1px solid var(--line)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:block;padding:10px 2px;font-size:14.5px;color:var(--muted);transition:color .2s ease,background .2s ease,padding-left .2s ease}
.side-list a:hover{color:var(--brand);background:var(--brand-soft);padding-left:10px;border-radius:6px}
.side-rel{list-style:none;padding:0;margin:0}
.side-rel li{padding:12px 0;border-bottom:1px dashed var(--line)}
.side-rel li:last-child{border-bottom:0;padding-bottom:0}
.side-rel a{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.6;margin-bottom:6px}
.side-rel a:hover{color:var(--brand)}
.side-rel .rel-meta{font-size:12.5px;color:var(--meta);display:flex;gap:10px}
.side-cta{background:var(--brand-deep);border-radius:var(--r-lg);padding:22px;color:#F2F6F4;border:1px solid rgba(255,255,255,.14)}
.side-cta h3{font-size:17px;margin-bottom:10px;color:#fff}
.side-cta p{font-size:14px;line-height:1.8;color:#C9D8D3;margin-bottom:16px}
.side-cta .btn{width:100%}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 76px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.related-head h2{font-size:24px;color:var(--brand-deep)}
.related-head .more{font-size:14px;font-weight:600;color:var(--brand)}
.related-head .more:hover{color:var(--accent)}
.rel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D0C2}
.rel-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.rel-card .rel-body{padding:16px 18px 18px}
.rel-card h3{font-size:16px;line-height:1.55;margin-bottom:10px}
.rel-card h3 a{color:var(--text)}
.rel-card h3 a:hover{color:var(--brand)}
.rel-card .rel-meta{font-size:12.5px;color:var(--meta);display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 页面尾 CTA ---------- */
.tail-cta{background:var(--brand-deep);color:#F2F6F4;padding:64px 0}
.tail-cta .inner{max-width:660px;margin:0 auto;text-align:center}
.tail-cta h2{font-size:27px;color:#fff;margin-bottom:14px}
.tail-cta p{color:#C9D8D3;font-size:15.5px;margin-bottom:26px}
.tail-cta .btn-primary{min-width:180px}
.tail-cta .sub-link{display:inline-block;margin-top:16px;font-size:14px;color:#C9D8D3}
.tail-cta .sub-link:hover{color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B3A32;color:#F2F6F4;padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:16px}
.footer-brand .brand-mark{
  width:30px;height:30px;border-radius:8px;background:rgba(255,255,255,.14);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;
}
.site-footer p{color:#C9D8D3;font-size:14px;line-height:1.85;margin:0;max-width:420px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-links span{font-size:14px;color:#C9D8D3}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0 22px;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:10px;font-size:13px;color:#9FB6AF;
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .sidebar{position:static;margin-top:36px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .side-cta{grid-column:1 / -1}
  .hot .chip:nth-child(n+3){display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:860px){
  .search{display:none}
  .hot{display:none}
  .menu-btn{display:inline-flex}
  .topbar{height:56px}
  .channels{display:none}
  .mobile-panel.open{display:block}
  .post-head h1{font-size:26px}
  .post-body{font-size:16px}
  .post-body h2{font-size:22px}
  .post-body h3{font-size:18px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .crumb-bar{padding:16px 0 0}
  .article-layout{padding:20px 0 56px}
  .post-head h1{font-size:24px}
  .sidebar{grid-template-columns:minmax(0,1fr)}
  .related{padding-bottom:56px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .tail-cta{padding:48px 0}
  .tail-cta h2{font-size:23px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo{font-size:14px}
  .post-head h1{font-size:22px;line-height:1.4}
  .post-body{font-size:16px}
  .post-foot{flex-direction:column}
  .post-foot .btn{width:100%}
  .rel-card .rel-body{padding:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand:#14564A;
  --brand-dark:#0B3A32;
  --brand-soft:#E4EFEA;
  --accent:#C4703A;
  --accent-soft:#F6E7DC;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --line:#E4DFD4;
  --ink:#16211E;
  --ink-2:#4C5B57;
  --ink-3:#7E8B87;
  --ok:#2F7D5B;
  --warn:#B4541F;
  --err:#A8332B;
  --r-lg:14px;
  --r-md:10px;
  --r-sm:8px;
  --sh-1:0 1px 2px rgba(16,33,30,.05), 0 8px 24px -12px rgba(16,33,30,.14);
  --sh-2:0 2px 6px rgba(16,33,30,.08), 0 18px 36px -16px rgba(16,33,30,.22);
  --nav-h:92px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.88;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--paper);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:.005em}
p{margin:0 0 18px}
ul,ol{margin:0 0 18px;padding-left:1.4em;line-height:1.85}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px -12px rgba(16,33,30,.35)}
.header-inner{display:flex;flex-direction:column;transition:all .2s ease}
.brandbar{height:48px;display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:8px;
  background:var(--brand-dark);color:#F2F6F4;
  font-size:12.5px;font-weight:700;line-height:30px;text-align:center;
  letter-spacing:.02em;
}
.logo b{font-size:16.5px;color:var(--ink);font-weight:700;white-space:nowrap}
.logo:hover b{color:var(--brand)}
.search{position:relative;flex:0 1 340px;min-width:220px}
.search input{
  width:100%;height:36px;padding:0 38px 0 36px;
  border:1px solid var(--line);border-radius:999px;
  background:#FCFBF8;color:var(--ink);font-size:14px;
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.search input::placeholder{color:var(--ink-3)}
.search input:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(20,86,74,.12);
}
.search .icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:14px}
.search button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  height:26px;padding:0 12px;border:0;border-radius:999px;
  background:var(--brand);color:#fff;font-size:12.5px;
}
.hotwords{display:flex;gap:8px;flex:1 1 auto;overflow:hidden}
.hotwords a{
  font-size:12.5px;color:var(--ink-2);
  background:#F1EEE7;border:1px solid transparent;
  padding:4px 11px;border-radius:999px;white-space:nowrap;
}
.hotwords a:hover{background:var(--brand-soft);color:var(--brand);border-color:#CFE1D9}
.quick-link{
  margin-left:auto;flex:0 0 auto;
  font-size:13.5px;font-weight:600;
  border:1.5px solid var(--brand);border-radius:var(--r-sm);
  padding:6px 14px;color:var(--brand);
}
.quick-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.channelbar{
  height:44px;display:flex;align-items:center;gap:4px;
  border-top:1px solid var(--line);
}
.channels{
  display:flex;align-items:center;gap:4px;
  overflow-x:auto;scrollbar-width:none;
  height:100%;
}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;height:100%;display:inline-flex;align-items:center;
  padding:0 15px;font-size:14.5px;color:var(--ink-2);white-space:nowrap;
}
.channel::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transition:transform .2s ease;
}
.channel:hover{color:var(--brand)}
.channel:hover::after{transform:scaleX(1)}
.channel.active{color:var(--brand);font-weight:700}
.channel.active::after{transform:scaleX(1)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--ink-2);display:none;align-items:center;justify-content:center;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.hamburger{display:none}

/* compact nav */
body.nav-compact .header-inner{flex-direction:row;align-items:center;gap:20px}
body.nav-compact .brandbar{height:56px}
body.nav-compact .search,
body.nav-compact .hotwords,
body.nav-compact .quick-link{display:none}
body.nav-compact .channelbar{height:56px;border-top:0;flex:1 1 auto;min-width:0}
body.nav-compact .nav-tools{display:flex}
body.nav-compact .icon-btn{display:inline-flex}

/* ---------- 二级锚点条 ---------- */
.anchorbar{
  position:sticky;top:var(--nav-h);z-index:70;
  background:rgba(247,245,240,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
}
body.nav-compact .anchorbar{top:56px}
.anchor-inner{display:flex;align-items:center;gap:6px;height:50px;overflow-x:auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  font-size:14px;color:var(--ink-2);padding:6px 13px;border-radius:999px;white-space:nowrap;
  border:1px solid transparent;
}
.anchor-inner a:hover{background:#fff;border-color:var(--line);color:var(--brand)}
.anchor-inner a.on{background:var(--brand-soft);color:var(--brand-dark);font-weight:600;border-color:#CFE1D9}

/* ---------- hero ---------- */
.page-hero{
  position:relative;color:#F2F6F4;
  background-image:linear-gradient(100deg,rgba(11,58,50,.92),rgba(11,58,50,.62)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  padding:64px 0 60px;
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:13.5px;color:#C9D8D3;margin-bottom:16px}
.crumb a{color:#C9D8D3}
.crumb a:hover{color:#fff}
.crumb span{margin:0 6px;opacity:.65}
.hero-tag{
  display:inline-block;font-size:13px;letter-spacing:.06em;
  color:#F6E7DC;border:1px solid rgba(255,255,255,.28);
  padding:5px 13px;border-radius:999px;margin-bottom:18px;
}
.page-hero h1{font-size:34px;line-height:1.3;max-width:760px}
.page-hero .lede{
  font-size:16.5px;line-height:1.85;color:#DCE8E4;max-width:680px;margin:18px 0 0;
}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px}
.hero-stats .stat b{display:block;font-size:24px;color:#fff;line-height:1.2}
.hero-stats .stat span{font-size:13.5px;color:#C9D8D3}
.hero-stats .stat{border-left:2px solid var(--accent);padding-left:14px}

/* ---------- sections ---------- */
.section{padding:76px 0}
.section.tight{padding:56px 0}
.section.alt{background:#fff}
.section.dark{background:var(--brand-dark);color:#F2F6F4}
.section.dark h2{color:#fff}
.section.dark p{color:#C9D8D3}
.sec-head{margin-bottom:36px;max-width:820px}
.sec-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--accent);font-weight:700;letter-spacing:.08em;margin-bottom:10px;
}
.sec-head .kicker::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}
.sec-head h2{font-size:27px;position:relative;padding-left:0}
.sec-head p{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:780px}

/* ---------- 条目流 ---------- */
.flow{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.flow-item{display:flex;gap:20px;padding:26px 28px;border-bottom:1px solid var(--line)}
.flow-item:last-child{border-bottom:0}
.flow-item:hover{background:#FBFCFA}
.num{
  flex:0 0 40px;width:40px;height:40px;border:1.5px solid var(--brand);
  color:var(--brand);border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;background:#fff;
}
.flow-body{flex:1 1 auto;min-width:0}
.flow-body h3{font-size:19px;margin-bottom:8px}
.flow-item:hover h3{color:var(--brand)}
.flow-body p{font-size:15.5px;color:var(--ink-2);margin-bottom:10px;line-height:1.85}
.text-link{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link .arw{transition:transform .18s ease}
.text-link:hover .arw{transform:translateX(3px)}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center}
.split.rev{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr)}
.media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.section.dark .media{border-color:rgba(255,255,255,.14);box-shadow:none}
.checks{list-style:none;padding:0;margin:0}
.checks li{
  position:relative;padding:0 0 0 30px;margin-bottom:14px;
  font-size:15.5px;color:var(--ink-2);line-height:1.8;
}
.section.dark .checks li{color:#C9D8D3}
.checks li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;
  border-radius:4px;background:var(--brand-soft);border:1px solid #BFD6CC;
}
.section.dark .checks li::before{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.3)}
.checks li b{color:var(--ink)}
.section.dark .checks li b{color:#F2F6F4}

/* ---------- 参数卡网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D2C4}
.card .tag{margin-bottom:14px;display:inline-block}
.card h3{font-size:18.5px;margin-bottom:10px}
.card:hover h3{color:var(--brand)}
.card p{font-size:15px;color:var(--ink-2);margin-bottom:0;line-height:1.85}
.tag{
  display:inline-block;font-size:13px;padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-weight:600;
}
.tag.ghost{background:transparent;border:1px solid var(--line);color:var(--ink-2);font-weight:500}
.section.dark .tag{background:rgba(255,255,255,.1);color:#E9F2EE;border:1px solid rgba(255,255,255,.18)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;position:relative;
}
.step .snum{
  width:34px;height:34px;border:1.5px solid var(--accent);border-radius:8px;
  color:var(--accent);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.8}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  padding:20px 24px;display:flex;align-items:center;gap:16px;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand);background:#FBFCFA}
.faq-q .chev{
  margin-left:auto;flex:0 0 auto;width:20px;height:20px;color:var(--accent);
  transition:transform .22s ease;font-size:13px;display:flex;align-items:center;justify-content:center;
}
.faq-item.open .faq-q .chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 24px 20px;margin:0;font-size:15.8px;color:var(--ink-2);line-height:1.88}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#0B3A32,#14564A);
  color:#F2F6F4;border-radius:var(--r-lg);
  padding:44px 40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-band h2{font-size:25px;color:#fff;max-width:640px}
.cta-band p{color:#C9D8D3;margin:12px 0 0;font-size:15.5px;max-width:620px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15.5px;font-weight:600;border-radius:var(--r-sm);
  padding:12px 24px;border:1.5px solid transparent;
  transition:all .18s ease;white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -12px rgba(196,112,58,.85)}
.btn-primary:hover{background:#AE5F2E;color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(174,95,46,.9)}
.btn-primary:active{transform:translateY(1px);background:#98522A}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark)}
.section.dark .btn-ghost,.cta-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#F2F6F4}
.section.dark .btn-ghost:hover,.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:#C9D8D3;padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#F2F6F4}
.footer-brand b{color:#F2F6F4;font-size:16px}
.site-footer p{font-size:14.5px;line-height:1.85;color:#A9BDB6;max-width:340px}
.footer-col h3{font-size:15px;color:#F2F6F4;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.footer-links a{color:#C9D8D3}
.footer-links a:hover{color:#fff}
.footer-links span{color:#8FA5A0}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:#8FA5A0;
}

/* ---------- floating ---------- */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:90;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  padding:12px 20px;border-radius:999px;
  box-shadow:0 14px 30px -12px rgba(174,95,46,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .24s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:#AE5F2E;color:#fff}
.to-top{
  position:fixed;right:24px;bottom:84px;z-index:90;
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  display:none;align-items:center;justify-content:center;font-size:15px;
  box-shadow:var(--sh-1);
}
.to-top.show{display:flex}
.to-top:hover{border-color:var(--brand);background:var(--brand-soft)}

/* ---------- drawer & search layer ---------- */
.overlay{
  position:fixed;inset:0;background:rgba(11,32,28,.5);z-index:95;
  opacity:0;visibility:hidden;transition:opacity .22s ease;
}
.overlay.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:96;
  background:#fff;transform:translateX(102%);transition:transform .26s ease;
  padding:20px;overflow-y:auto;
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-head b{font-size:16px}
.drawer-group{margin-bottom:22px}
.drawer-group h4{font-size:13px;color:var(--ink-3);letter-spacing:.08em;margin-bottom:10px}
.drawer-group a{
  display:block;padding:11px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--ink-2);
}
.drawer-group a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-group a.active{background:var(--brand-soft);color:var(--brand-dark);font-weight:700}
.search-layer{
  position:fixed;inset:0;z-index:97;background:#fff;
  padding:22px;transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:all .22s ease;
}
.search-layer.show{transform:translateY(0);opacity:1;visibility:visible}
.search-layer .search{margin:16px 0 22px;max-width:none;min-width:0;flex:1 1 auto}
.search-layer h4{font-size:13px;color:var(--ink-3);margin-bottom:12px;letter-spacing:.08em}
.close-btn{
  width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  color:var(--ink-2);
}
.close-btn:hover{border-color:var(--brand);color:var(--brand)}
body.no-scroll{overflow:hidden}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 20px}
  .section{padding:68px 0}
  .hotwords a:nth-child(n+4){display:none}
}
@media (max-width:1023px){
  .search{flex:0 1 240px}
  .quick-link{display:none}
  .split,.split.rev{grid-template-columns:1fr;gap:28px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  :root{--nav-h:56px}
  .brandbar{height:56px}
  .channelbar,.channels{display:none}
  body.nav-compact .channelbar{display:none}
  .hamburger,.search-toggle{display:inline-flex}
  .hotwords{display:none}
  .search{display:none}
  .page-hero{padding:44px 0 44px}
  .page-hero h1{font-size:25px}
  .page-hero .lede{font-size:15.5px}
  .hero-stats{gap:20px;margin-top:26px}
  .hero-stats .stat b{font-size:20px}
  .section{padding:46px 0}
  .section.tight{padding:38px 0}
  .sec-head h2{font-size:22px}
  .flow-item{padding:20px 18px;gap:14px}
  .num{flex:0 0 34px;width:34px;height:34px;font-size:14px}
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .float-cta{
    left:16px;right:16px;bottom:0;border-radius:0;justify-content:center;
    padding:15px 20px calc(15px + env(safe-area-inset-bottom,0px));
  }
  .to-top{display:none !important}
  .faq-q{font-size:16px;padding:17px 18px}
  .faq-a p{padding:0 18px 18px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .page-hero h1{font-size:23px}
  .btn{width:100%;padding:12px 18px}
  .hero-stats{gap:16px}
  .hero-stats .stat{flex:1 1 42%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .card:hover,.btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --brand:#14564A;
  --brand-deep:#0B3A32;
  --brand-soft:#E4EFEA;
  --accent:#C4703A;
  --accent-soft:#F6E7DC;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --line:#E4DFD4;
  --ink:#16211E;
  --ink-2:#4C5B57;
  --muted:#7E8B87;
  --ok:#2F7D5B;
  --warn:#B4541F;
  --err:#A8332B;
  --dark-text:#F2F6F4;
  --dark-sub:#C9D8D3;
  --r-lg:14px;
  --r-md:10px;
  --r-sm:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,33,30,.05), 0 8px 24px -12px rgba(16,33,30,.14);
  --sh-2:0 2px 4px rgba(16,33,30,.08), 0 18px 34px -14px rgba(16,33,30,.22);
  --sec-y:80px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.3em}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 20px -14px rgba(16,33,30,.35)}
.topbar{height:48px;overflow:hidden;transition:height .25s ease,opacity .2s ease}
.topbar-inner{display:flex;align-items:center;gap:16px;height:48px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border:1.5px solid var(--brand);border-radius:6px;
  color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.04em;
  background:var(--brand-soft);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--ink)}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.06em}
.search-form{
  position:relative;flex:1 1 auto;max-width:340px;
  display:flex;align-items:center;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;height:36px;padding:0 10px;gap:8px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,86,74,.12)}
.search-form svg{flex:0 0 auto;color:var(--muted)}
.search-form input{flex:1 1 auto;border:0;outline:0;background:transparent;height:100%;font-size:14px;color:var(--ink)}
.hot-words{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.hot-label{font-size:12px;color:var(--muted);letter-spacing:.08em}
.hot-words a{
  font-size:13px;color:var(--ink-2);background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:3px 11px;
}
.hot-words a:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.ghost-btn{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 14px;border:1.5px solid var(--brand);border-radius:var(--r-sm);
  color:var(--brand);font-size:13.5px;font-weight:600;background:transparent;
}
.ghost-btn:hover{background:var(--brand-soft)}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--ink-2);background:#fff;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.channelbar{height:44px;border-top:1px solid var(--line);transition:height .25s ease}
.channelbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.channels{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;
  padding:0 14px;height:43px;display:inline-flex;align-items:center;
  font-size:14.5px;color:var(--ink-2);font-weight:500;white-space:nowrap;
}
.channel::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  background:transparent;transition:background-color .2s ease;
}
.channel:hover{color:var(--brand)}
.channel.active{color:var(--brand);font-weight:700}
.channel.active::after{background:var(--accent)}
.more-btn{
  flex:0 0 auto;font-size:13px;color:var(--muted);
  display:inline-flex;align-items:center;gap:4px;padding:4px 8px;border-radius:var(--r-sm);
}
.more-btn:hover{color:var(--brand);background:var(--brand-soft)}
.site-header.is-compact .topbar{height:0;opacity:0}
.site-header.is-compact .channelbar{height:56px}
.site-header.is-compact .channel{height:55px}

/* 移动端抽屉与搜索层 */
.mask{
  position:fixed;inset:0;background:rgba(11,58,50,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:100;
  background:#fff;border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.drawer-head b{font-size:15px}
.drawer-close{width:34px;height:34px;border:1px solid var(--line);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;color:var(--ink-2)}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-group{padding:16px 18px 4px}
.drawer-group h3{font-size:12.5px;letter-spacing:.1em;color:var(--muted);font-weight:600;margin-bottom:8px}
.drawer-group a{display:block;padding:10px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--ink-2)}
.drawer-group a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-group a.active{background:var(--brand-soft);color:var(--brand);font-weight:700}
.search-layer{
  position:fixed;inset:0;z-index:110;background:rgba(255,255,255,.99);
  display:none;flex-direction:column;padding:18px 16px;
}
.search-layer.open{display:flex}
.search-layer form{display:flex;gap:8px;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 10px;height:46px;align-items:center;background:#fff}
.search-layer form input{border:0;outline:0;flex:1;height:100%;background:transparent}
.search-layer .layer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.search-layer .layer-tags a{font-size:13px;border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 12px;color:var(--ink-2)}
.search-layer .layer-tags a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.search-layer .layer-close{margin-top:auto;align-self:flex-start;color:var(--muted);font-size:14px}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(11,58,50,.94) 0%,rgba(11,58,50,.78) 52%,rgba(11,58,50,.55) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:var(--dark-text);
  padding:60px 0 56px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dark-sub);margin-bottom:18px;flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.55}
.crumb .now{color:var(--dark-text)}
.page-hero h1{font-size:34px;line-height:1.3;letter-spacing:.01em;max-width:760px}
.page-hero .hero-lead{margin-top:16px;max-width:660px;color:var(--dark-sub);font-size:16.5px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
  font-size:13px;padding:5px 13px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.24);color:var(--dark-text);background:rgba(255,255,255,.07);
}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec-y) 0}
.section.tight{padding-top:56px}
.sec-head{margin-bottom:30px;max-width:780px}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);font-weight:600;letter-spacing:.08em}
.sec-eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);display:inline-block}
.sec-head h2{font-size:26px;line-height:1.35;margin-top:10px}
.sec-head p{margin-top:10px;color:var(--ink-2);font-size:15.5px;max-width:700px}

/* ---------- 8/4 布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:28px;align-items:start}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d7d0c1}
.info-card:hover h3{color:var(--brand)}
.info-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border:1.5px solid var(--brand);border-radius:6px;
  color:var(--brand);font-size:13px;font-weight:700;margin-bottom:14px;
}
.info-card h3{font-size:19px;line-height:1.4;transition:color .2s ease}
.info-card p{margin-top:10px;color:var(--ink-2);font-size:15.5px}
.text-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;color:var(--brand);font-size:14.5px;font-weight:600}
.text-link span{transition:transform .2s ease}
.text-link:hover span{transform:translateX(3px)}

.wide-card{
  grid-column:1 / -1;border-radius:var(--r-lg);border:1px solid var(--line);
  padding:30px 28px;background:var(--card);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.wide-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.wide-card.dark{
  background:linear-gradient(160deg,var(--brand-deep) 0%,#12564a 100%);
  border-color:rgba(255,255,255,.14);color:var(--dark-text);
  background-image:linear-gradient(160deg,rgba(11,58,50,.96),rgba(11,58,50,.9)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.wide-card.dark h3{color:#fff}
.wide-card.dark p{color:var(--dark-sub)}
.wide-card.light{background:var(--brand-soft);border-color:#cfe0d8}
.wide-card.light h3{color:var(--brand-deep)}
.wide-card h3{font-size:21px;line-height:1.4}
.wide-card p{margin-top:10px;color:var(--ink-2);font-size:15.5px;max-width:760px}
.offset-card{margin-top:6px}
.split{display:grid;grid-template-columns:1.35fr 1fr;gap:26px;align-items:center}
.split img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line)}

.diff-list{margin-top:18px;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:#fff}
.diff-row{display:grid;grid-template-columns:1.1fr 1fr 1.4fr;gap:14px;padding:13px 16px;font-size:14.5px;border-bottom:1px solid var(--line)}
.diff-row:last-child{border-bottom:0}
.diff-row:nth-child(odd){background:#fbfaf6}
.diff-row.head{background:var(--brand-soft);font-weight:700;color:var(--brand);font-size:13.5px;letter-spacing:.03em}
.diff-row .bad{color:var(--err);font-weight:600}
.diff-row .good{color:var(--ok);font-weight:600}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:12px}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:var(--r-sm);font-size:14.5px;color:var(--ink-2);
}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.side-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:700}
.side-nav a em{font-style:normal;font-size:12px;color:var(--muted)}
.tip-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px}
.tip-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.tip-list li b{color:var(--ink)}
.tip-list li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;
  border-radius:2px;background:var(--accent);
}
.side-cta{background:var(--brand-deep);border-color:var(--brand-deep);color:var(--dark-text)}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.16)}
.side-cta p{color:var(--dark-sub);font-size:14.5px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px -10px rgba(196,112,58,.9)}
.btn-primary:hover{background:#ad6132;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(196,112,58,.95)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{border:1.5px solid var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft)}
.btn-light{border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.12)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.side-card .btn{width:100%;margin-top:16px}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:8px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px 18px;position:relative}
.step .sq{
  display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;
  border:1.5px solid var(--accent);border-radius:6px;color:var(--accent);font-size:13px;font-weight:700;
  margin-bottom:12px;
}
.step h3{font-size:16.5px}
.step p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand)}
.faq-q .arrow{
  flex:0 0 auto;width:26px;height:26px;border:1px solid var(--line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);
  transition:transform .25s ease,background-color .2s ease,color .2s ease;
}
.faq-item.open .faq-q{color:var(--brand)}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);background:var(--brand-soft);color:var(--brand)}
.faq-a{display:none;padding:0 4px 22px;color:var(--ink-2);font-size:16px;max-width:800px}
.faq-item.open .faq-a{display:block}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--brand-deep);color:var(--dark-text);
  padding:64px 0;text-align:center;
}
.cta-band h2{font-size:27px;line-height:1.35}
.cta-band p{margin-top:14px;color:var(--dark-sub);font-size:16px;max-width:640px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:26px}
.cta-note{margin-top:16px;font-size:13.5px;color:var(--dark-sub)}
.cta-note a{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0f2f29;color:var(--dark-sub);padding:56px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:28px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand b{color:#fff;font-size:16px}
.footer-brand .brand-mark{border-color:var(--dark-sub);color:#fff;background:rgba(255,255,255,.08)}
.site-footer p{max-width:340px;line-height:1.85}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--dark-sub)}
.footer-links a:hover{color:#fff}
.footer-links span{color:#9fb3ad}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:18px 0 24px;font-size:13px;color:#9fb3ad;
}

/* ---------- 浮动组件 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:92px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--accent);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 12px 26px -12px rgba(196,112,58,.95);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:#ad6132}
.back-top{
  position:fixed;right:24px;bottom:34px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{border-color:var(--brand);background:var(--brand-soft)}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:75;
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  gap:10px;
}
.mobile-bar .btn{flex:1 1 0;height:44px;padding:0 10px;font-size:14.5px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 20px}
  .hot-words a:nth-child(n+3){display:none}
}
@media (max-width:1023px){
  :root{--sec-y:64px}
  .search-form{max-width:240px}
  .hot-words,.ghost-btn{display:none}
  .layout{grid-template-columns:1fr}
  .side-col{position:static}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .site-footer p{max-width:none}
}
@media (max-width:767px){
  :root{--sec-y:48px}
  .container{padding:0 16px}
  .search-form{display:none}
  .icon-btn{display:flex}
  .topbar,.topbar-inner{height:56px}
  .site-header .channelbar{height:44px}
  .channel{height:43px;font-size:14px;padding:0 11px}
  .page-hero{padding:40px 0 38px}
  .page-hero h1{font-size:25px}
  .page-hero .hero-lead{font-size:15.5px}
  .sec-head h2{font-size:22px}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .split{grid-template-columns:1fr;gap:18px}
  .wide-card{padding:22px 18px}
  .steps{grid-template-columns:1fr}
  .diff-row{grid-template-columns:1fr;gap:4px;padding:13px 14px}
  .diff-row.head{display:none}
  .faq-q{font-size:16px;padding:17px 2px}
  .cta-band{padding:48px 0}
  .cta-band h2{font-size:23px}
  .float-cta,.back-top{display:none}
  .mobile-bar{display:flex}
  .site-footer{padding:44px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:20px;padding-bottom:26px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:420px){
  .page-hero h1{font-size:23px}
  .sec-head h2{font-size:20px}
  .btn{height:42px;font-size:14.5px}
  .brand-text em{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category3 */
:root{
  --brand:#14564A;
  --brand-deep:#0B3A32;
  --accent:#C4703A;
  --accent-soft:#F6E7DC;
  --brand-soft:#E4EFEA;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --line:#E4DFD4;
  --ink:#16211E;
  --ink-2:#4C5B57;
  --ink-3:#7E8B87;
  --ok:#2F7D5B;
  --radius-lg:14px;
  --radius:10px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(16,33,30,.05),0 8px 24px -12px rgba(16,33,30,.14);
  --shadow-2:0 2px 6px rgba(16,33,30,.08),0 18px 36px -16px rgba(16,33,30,.22);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.88;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--ink);}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.compact{box-shadow:0 6px 20px -14px rgba(16,33,30,.4);}
.topbar{
  display:flex;
  align-items:center;
  gap:18px;
  height:50px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:7px;
  background:var(--brand);color:#fff;
  font-size:13px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.search{
  position:relative;
  flex:1 1 320px;
  max-width:360px;
  display:flex;
  align-items:center;
}
.search svg{
  position:absolute;left:12px;width:16px;height:16px;fill:none;
  stroke:var(--ink-3);stroke-width:2;pointer-events:none;
}
.search input{
  width:100%;height:38px;
  padding:0 14px 0 36px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:#FCFBF8;
  font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search input::placeholder{color:var(--ink-3);}
.search input:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(20,86,74,.12);
}
.hotwords{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.hotword{
  display:inline-block;
  padding:3px 11px;
  border-radius:999px;
  background:var(--brand-soft);
  color:#0F4438;
  font-size:13px;
  line-height:1.7;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.hotword:hover{background:var(--accent-soft);color:#8E4E22;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:42px;padding:0 20px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;
  letter-spacing:.02em;
  transition:transform .16s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{height:36px;padding:0 14px;font-size:14px;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 1px 2px rgba(16,33,30,.08);}
.btn-accent:hover{background:#AE6130;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(174,97,48,.9);}
.btn-accent:active{transform:translateY(1px);background:#9C5528;}
.btn-ghost{border:1.5px solid var(--brand);color:var(--brand);background:transparent;}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);}
.btn-line{border:1px solid var(--line);color:var(--ink-2);background:#fff;}
.btn-line:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.menu-btn{
  display:none;
  width:38px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  align-items:center;justify-content:center;
}
.menu-btn span{display:block;width:16px;height:2px;background:var(--ink);position:relative;border-radius:2px;}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;
}
.menu-btn span::before{top:-5px;}
.menu-btn span::after{top:5px;}

.channels{
  display:flex;
  align-items:center;
  gap:4px;
  height:44px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  display:inline-block;
  padding:0 14px;
  line-height:44px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  white-space:nowrap;
}
.channel:hover{color:var(--brand);}
.channel.active{color:var(--brand);}
.channel.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;
}

.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px 0 18px;
}
.drawer .channel{display:block;line-height:44px;padding:0 4px;}
.drawer .channel.active::after{left:4px;right:auto;width:26px;}
body.drawer-open .drawer{display:block;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(11,58,50,.92) 0%,rgba(11,58,50,.78) 48%,rgba(11,58,50,.55) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#F2F6F4;
  padding:62px 0 54px;
}
.page-hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  font-size:13px;color:#DCE9E4;
  margin-bottom:18px;
}
.page-hero h1{
  color:#fff;
  font-size:34px;
  line-height:1.3;
  max-width:760px;
}
.page-hero .lead{
  margin:16px 0 26px;
  max-width:660px;
  font-size:17px;
  color:#C9D8D3;
  line-height:1.85;
}
.hero-anchors{display:flex;flex-wrap:wrap;gap:10px;}
.hero-anchors a{
  display:inline-block;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.24);
  color:#EAF2EF;
  font-size:14px;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.hero-anchors a:hover{background:rgba(196,112,58,.9);border-color:transparent;color:#fff;}

/* ---------- sections ---------- */
.section{padding:74px 0;}
.section.tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head .kicker{
  display:block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
  font-weight:700;
  margin-bottom:10px;
}
.section-head h2{
  font-size:26px;
  line-height:1.4;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.35em;width:2px;height:.9em;
  background:var(--accent);border-radius:2px;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 22px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;
  border:1.5px solid var(--brand);
  border-radius:8px;
  color:var(--brand);
  font-weight:700;
  font-size:15px;
  margin-bottom:16px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0;}
.step::after{
  content:"";position:absolute;top:44px;right:-22px;width:22px;height:1px;
  background:var(--line);
}
.step:last-child::after{display:none;}

/* compare */
.compare-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.compare-row{
  display:grid;
  grid-template-columns:1.1fr 1fr 1.4fr;
  gap:0;
}
.compare-row > div{
  padding:18px 22px;
  font-size:15px;
  line-height:1.8;
  border-bottom:1px solid var(--line);
}
.compare-row:last-child > div{border-bottom:none;}
.compare-row.head > div{
  background:var(--brand-deep);
  color:#F2F6F4;
  font-weight:700;
  font-size:15px;
  border-bottom:none;
}
.compare-row:nth-child(even):not(.head) > div{background:#FAF8F4;}
.compare-row .symptom{font-weight:600;color:var(--ink);}
.compare-row .cause{color:var(--ink-2);}
.compare-row .deal{color:var(--brand);}
.compare-note{
  margin-top:18px;
  font-size:14px;
  color:var(--ink-3);
}

/* cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.card-media{aspect-ratio:4/3;overflow:hidden;background:var(--brand-soft);}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column;}
.tag{
  display:inline-block;
  padding:3px 11px;
  border-radius:999px;
  background:var(--brand-soft);
  color:#0F4438;
  font-size:13px;
  line-height:1.7;
  margin-bottom:12px;
  align-self:flex-start;
}
.card-body h3{font-size:20px;margin-bottom:10px;}
.card-body p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;margin-top:auto;padding-top:16px;
}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover::after{transform:translateX(3px);}

/* faq */
.faq-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 54px 20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  position:relative;
  transition:background .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--brand-soft);color:var(--brand);}
.faq-item summary::after{
  content:"";
  position:absolute;right:24px;top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--ink-3);
  border-bottom:2px solid var(--ink-3);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item .faq-body{
  padding:0 24px 22px;
  font-size:16px;
  color:var(--ink-2);
  line-height:1.88;
}

/* related */
.related-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.related-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 24px;
  border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.related-item:last-child{border-bottom:none;}
.related-item:hover{background:var(--brand-soft);}
.related-item .rt{font-size:16px;font-weight:600;color:var(--ink);}
.related-item .rm{font-size:13px;color:var(--ink-3);white-space:nowrap;}

/* cta */
.cta-band{
  background:var(--brand-deep);
  border-radius:var(--radius-lg);
  padding:48px 40px;
  text-align:center;
  color:#F2F6F4;
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:14px;}
.cta-band p{color:#C9D8D3;font-size:16px;max-width:620px;margin:0 auto 26px;}
.cta-band .cta-actions{display:flex;justify-content:center;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-band .quiet{font-size:14px;color:#9FBAB2;}
.cta-band .quiet:hover{color:#fff;}

/* footer */
.site-footer{background:var(--brand-deep);color:#C9D8D3;padding:60px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand b{color:#fff;font-size:17px;}
.site-footer p{font-size:14.5px;line-height:1.85;color:#9FBAB2;max-width:340px;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a,.footer-links span{font-size:14.5px;color:#C9D8D3;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8FA9A1;
}

/* floating */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;
  z-index:70;
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn{box-shadow:0 12px 26px -12px rgba(174,97,48,.9);}
.to-top{
  position:fixed;
  right:24px;bottom:82px;
  z-index:70;
  width:42px;height:42px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--line);
  color:var(--brand);
  font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:var(--brand);background:var(--brand-soft);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 20px;}
  .hotwords .hotword:nth-child(n+3){display:none;}
}
@media (max-width:1023px){
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .compare-row{grid-template-columns:1fr 1fr;}
  .compare-row > div:nth-child(3){grid-column:1 / -1;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .search{display:none;}
  .hotwords{display:none;}
  .header-actions .btn-ghost{display:none;}
  .menu-btn{display:inline-flex;}
  .topbar{height:56px;}
  .channels{height:0;overflow:hidden;}
  .page-hero{padding:44px 0 40px;}
  .page-hero h1{font-size:25px;}
  .page-hero .lead{font-size:15.5px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:26px;}
  .section-head h2{font-size:22px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .grid-3{grid-template-columns:1fr;}
  .compare-row{grid-template-columns:1fr;}
  .compare-row > div{padding:14px 16px;border-bottom:1px solid var(--line);}
  .compare-row > div:last-child{border-bottom:none;}
  .faq-item summary{font-size:16px;padding:17px 46px 17px 18px;}
  .faq-item summary::after{right:18px;}
  .faq-item .faq-body{padding:0 18px 18px;font-size:15.5px;}
  .related-item{padding:15px 18px;flex-direction:column;align-items:flex-start;gap:4px;}
  .cta-band{padding:36px 20px;}
  .cta-band h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:44px 0 22px;}
  .footer-bottom{margin-top:30px;}
  .float-cta{
    left:0;right:0;bottom:0;
    padding:8px 12px calc(8px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.97);
    border-top:1px solid var(--line);
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .float-cta .btn{width:100%;}
  .to-top{right:14px;bottom:74px;}
}
@media (max-width:419px){
  .page-hero h1{font-size:22px;}
  .btn{height:40px;padding:0 16px;font-size:14.5px;}
  .step{padding:22px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .step:hover,.card:hover{transform:none;}
}