/* roulang page: index */
:root{
  --brand-900:#0B2E23;
  --brand-700:#12503C;
  --brand-500:#1E7A57;
  --lime-400:#3DD68C;
  --amber-500:#F5A524;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#12181A;
  --muted:#5B6A66;
  --line:#E2E4DE;
  --radius-card:18px;
  --radius-btn:12px;
  --shadow-soft:0 1px 2px rgba(11,46,35,.06), 0 12px 32px -12px rgba(11,46,35,.18);
  --shadow-hover:0 2px 6px rgba(11,46,35,.08), 0 22px 44px -14px rgba(11,46,35,.26);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);background:var(--paper);
  letter-spacing:.005em;-webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-900);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-weight:700;font-size:15px;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--amber-500);color:#1B1405;box-shadow:0 10px 24px -12px rgba(245,165,36,.85)}
.btn-primary:hover{background:#E0940F;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(245,165,36,.9)}
.btn-secondary{background:#fff;color:var(--brand-700);border:1.5px solid var(--brand-700)}
.btn-secondary:hover{background:rgba(18,80,60,.06);transform:translateY(-1px)}
.btn-ghost{background:rgba(18,80,60,.07);color:var(--brand-700)}
.btn-ghost:hover{background:rgba(18,80,60,.13)}
.btn-dark{background:var(--brand-900);color:#fff}
.btn-dark:hover{background:#0F3A2C;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}

/* ---------- 标签 / 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:999px;font-size:13px;font-weight:600;line-height:1;
  background:rgba(18,80,60,.07);color:var(--brand-700);white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.pill:hover{background:rgba(61,214,140,.22);color:var(--brand-900)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:700;line-height:1}
.badge-cat{background:var(--paper);color:var(--brand-700);border:1px solid var(--line)}
.badge-ver{background:rgba(61,214,140,.16);color:var(--brand-900)}
.badge-gold{background:rgba(245,165,36,.16);color:#8A5A05}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-soft);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D2D8CE}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 吸顶导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  box-shadow:0 10px 30px -18px rgba(11,46,35,.45);
}
.topbar{height:60px;display:flex;align-items:center;transition:height .25s ease}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:none;
  background:linear-gradient(145deg,var(--brand-700),var(--brand-900));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(11,46,35,.8);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:-.02em;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase;line-height:1}
.topbar-actions{display:flex;align-items:center;gap:10px}

.channelbar{height:48px;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%}
.channel-nav{display:flex;align-items:center;gap:4px;height:100%;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;height:100%;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:color .18s ease;
}
.channel::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--lime-400);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.channel:hover{color:var(--brand-900)}
.channel:hover::after{transform:scaleX(1)}
.channel.active{color:var(--brand-900)}
.channel.active::after{transform:scaleX(1)}
.channel-tools{display:flex;align-items:center;gap:10px;flex:none}
.hotwords{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;max-width:420px}
.hotwords::-webkit-scrollbar{display:none}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-700);background:rgba(18,80,60,.06);transition:background-color .18s ease,color .18s ease;
}
.icon-btn:hover{background:rgba(61,214,140,.22);color:var(--brand-900)}
.hamburger{display:none}

.search-panel{max-height:0;overflow:hidden;border-top:1px solid transparent;transition:max-height .3s ease,border-color .3s ease,background-color .3s ease;background:var(--paper)}
.search-panel.open{max-height:150px;border-top-color:var(--line)}
.search-inner{display:flex;align-items:center;gap:12px;padding:14px 0;flex-wrap:wrap}
.search-field{
  flex:1;min-width:220px;display:flex;align-items:center;gap:10px;height:48px;padding:0 16px;
  background:#fff;border:1px solid var(--line);border-radius:12px;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-field:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,87,.12)}
.search-field input{flex:1;border:0;outline:none;background:transparent;font-size:15px;color:var(--ink)}
.search-field input::placeholder{color:#9AA6A1}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,46,35,.45);opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:380px;background:#fff;z-index:100;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;overflow-y:auto;padding:22px 20px 32px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{font-size:16px;font-weight:800;color:var(--brand-900)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;font-size:15px;font-weight:600;color:var(--brand-900);
  border-left:3px solid transparent;transition:background-color .18s ease,border-color .18s ease;
}
.drawer-link:hover,.drawer-link.active{background:var(--paper);border-left-color:var(--lime-400)}
.drawer-label{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.12em;margin:0 0 10px 4px}
.drawer-pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.drawer-cta{display:flex;flex-direction:column;gap:10px;margin-top:auto}

/* ---------- Hero ---------- */
main{padding-top:108px}
.hero{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(11,46,35,.04) 0 2px,transparent 2px 12px);
  opacity:.9;
}
.hero-inner{position:relative;padding:74px 0 68px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 15px;border-radius:999px;
  background:rgba(61,214,140,.16);color:var(--brand-900);font-size:13px;font-weight:700;letter-spacing:.04em;
}
.hero-title{font-size:40px;line-height:1.22;margin:20px 0 16px;color:var(--brand-900);font-weight:800}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:42px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stat-num{font-size:22px;font-weight:800;color:var(--brand-700);line-height:1.2;letter-spacing:-.02em}
.hero-stat-label{font-size:13px;color:var(--muted);margin-top:4px}
.hero-media{position:relative}
.hero-media img{width:100%;border-radius:22px;box-shadow:var(--shadow-hover);object-fit:cover;aspect-ratio:16/10}
.hero-badge{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:12px 16px;box-shadow:var(--shadow-soft);display:flex;align-items:center;gap:10px;
}
.hero-badge-dot{width:10px;height:10px;border-radius:999px;background:var(--lime-400);box-shadow:0 0 0 4px rgba(61,214,140,.2)}
.hero-badge-text{font-size:13px;font-weight:800;color:var(--brand-900);line-height:1.3}
.hero-badge-sub{font-size:11px;color:var(--muted);line-height:1.3}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-eyebrow{font-size:13px;font-weight:700;color:var(--brand-500);letter-spacing:.16em;text-transform:uppercase;margin-bottom:10px}
.section-title{font-size:30px;color:var(--brand-900);font-weight:800}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--muted);max-width:640px}
.link-more{font-size:14.5px;font-weight:700;color:var(--brand-700);border-bottom:2px solid var(--lime-400);padding-bottom:2px;transition:color .18s ease}
.link-more:hover{color:var(--brand-900)}

/* ---------- 核心价值 ---------- */
.value-list{display:flex;flex-direction:column;gap:18px}
.value-row{
  display:grid;grid-template-columns:3fr 9fr;gap:28px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-soft);transition:transform .22s ease,box-shadow .22s ease;
}
.value-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.value-index{
  display:flex;align-items:center;gap:14px;
}
.value-num{font-size:30px;font-weight:800;color:var(--brand-900);letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.value-icon{
  width:44px;height:44px;border-radius:13px;flex:none;
  background:rgba(61,214,140,.16);display:flex;align-items:center;justify-content:center;color:var(--brand-700);
}
.value-title{font-size:19px;font-weight:800;color:var(--brand-900);margin-bottom:8px}
.value-text{font-size:15px;color:var(--muted);line-height:1.85}

/* ---------- 截图轮播 ---------- */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.shot{flex:0 0 300px;scroll-snap-align:start}
.shot-frame{
  position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  background:var(--paper);box-shadow:var(--shadow-soft);transition:transform .22s ease,box-shadow .22s ease;
}
.shot:hover .shot-frame{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.shot-frame img{width:100%;aspect-ratio:3/5;object-fit:cover}
.shot-name{margin-top:14px;font-size:15px;font-weight:700;color:var(--brand-900);text-align:center}
.rail-nav{display:flex;justify-content:center;gap:12px;margin-top:6px}
.rail-btn{
  width:44px;height:44px;border-radius:999px;background:#fff;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);
  box-shadow:var(--shadow-soft);transition:background-color .18s ease,transform .18s ease,color .18s ease;
}
.rail-btn:hover{background:var(--brand-900);color:#fff;transform:translateY(-2px)}

/* ---------- 规格清单 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 26px 10px;box-shadow:var(--shadow-soft)}
.spec-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.spec-title{font-size:17px;font-weight:800;color:var(--brand-900)}
.spec-icon{width:38px;height:38px;border-radius:11px;background:rgba(18,80,60,.08);display:flex;align-items:center;justify-content:center;color:var(--brand-700);flex:none}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:12px 0;border-top:1px dashed var(--line)}
.spec-key{font-size:14.5px;color:var(--muted)}
.spec-val{font-size:14.5px;font-weight:700;color:var(--brand-900);text-align:right}

/* ---------- 下载 ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.dl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-soft);display:flex;flex-direction:column;gap:16px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.dl-top{display:flex;align-items:center;gap:14px}
.dl-logo{width:48px;height:48px;border-radius:14px;background:var(--paper);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand-700);flex:none}
.dl-name{font-size:17px;font-weight:800;color:var(--brand-900)}
.dl-meta{font-size:13px;color:var(--muted);margin-top:2px}
.dl-note{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-top:22px}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{display:flex;flex-direction:column;overflow:hidden}
.news-cover{position:relative;aspect-ratio:16/10;background:var(--paper);overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:17px;font-weight:800;color:var(--brand-900);line-height:1.5}
.news-card:hover .news-title{color:var(--brand-500)}
.news-sum{font-size:14.5px;color:var(--muted);line-height:1.75}
.news-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.empty-state{padding:64px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff}
.empty-icon{width:56px;height:56px;border-radius:16px;background:var(--paper);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--muted)}
.empty-text{font-size:15px;color:var(--muted);margin-bottom:18px}

/* ---------- 评价墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.wall-col{display:flex;flex-direction:column;gap:24px}
.wall-col:nth-child(2){padding-top:36px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 24px 22px;border-left:3px solid var(--lime-400);box-shadow:var(--shadow-soft);transition:transform .22s ease,box-shadow .22s ease}
.review:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:40px;height:40px;border-radius:999px;background:linear-gradient(140deg,var(--brand-500),var(--brand-900));color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex:none}
.review-name{font-size:14.5px;font-weight:800;color:var(--brand-900)}
.review-src{font-size:12.5px;color:var(--muted);margin-top:1px}
.stars{display:flex;gap:2px;margin-left:auto;color:var(--amber-500)}
.review-text{font-size:14.5px;color:#33403C;line-height:1.85}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease,background-color .2s ease}
.faq-item.open{border-color:#C9D4CC;box-shadow:var(--shadow-soft)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--brand-900);transition:background-color .2s ease;
}
.faq-item:hover .faq-q{background:rgba(11,46,35,.035)}
.faq-icon{width:26px;height:26px;border-radius:999px;background:var(--paper);display:flex;align-items:center;justify-content:center;flex:none;color:var(--brand-700);transition:transform .25s ease,background-color .25s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(61,214,140,.24)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:320px}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.9}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--brand-900);border-radius:24px;overflow:hidden;
  padding:56px 48px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);
}
.cta-band-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-title{font-size:28px;font-weight:800;color:#fff}
.cta-sub{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.75);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-dots{position:absolute;right:34px;top:34px;display:grid;grid-template-columns:repeat(3,6px);gap:6px}
.cta-dots span{width:6px;height:6px;border-radius:999px;background:var(--lime-400);opacity:.55}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:88px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-title{font-size:14px;font-weight:800;color:var(--brand-900);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .18s ease,padding-left .18s ease}
.footer-links a:hover{color:var(--brand-700);padding-left:4px}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:34px}
  .hero-media img{aspect-ratio:16/9}
  .hero-badge{left:14px;bottom:14px}
  .value-row{grid-template-columns:1fr;gap:16px}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .spec-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hotwords{max-width:260px}
}
@media (max-width:768px){
  main{padding-top:64px}
  .channelbar{display:none}
  .hamburger{display:inline-flex}
  .topbar-actions{display:none}
  .brand-text{font-size:15.5px}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .hero-inner{padding:44px 0 48px}
  .hero-title{font-size:27px}
  .hero-sub{font-size:15.5px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .wall{grid-template-columns:1fr;gap:18px}
  .wall-col:nth-child(2){padding-top:0}
  .cta-band{padding:38px 24px;border-radius:20px}
  .cta-title{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:56px;padding-top:44px}
  .news-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .rail-nav{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-title{font-size:24px}
  .hero-actions .btn{width:100%}
  .btn-lg{height:50px;padding:0 20px;font-size:15px}
  .shot{flex:0 0 250px}
  .faq-q{font-size:15px;padding:16px 16px}
  .faq-a-inner{padding:0 16px 18px}
  .review{padding:20px}
}

/* roulang page: category1 */
:root{
    --brand-900:#0B2E23;
    --brand-700:#12503C;
    --brand-500:#1E7A57;
    --lime-400:#3DD68C;
    --amber-500:#F5A524;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --ink:#12181A;
    --muted:#5B6A66;
    --line:#E2E4DE;
    --radius-card:18px;
    --radius-btn:12px;
    --shadow-card:0 1px 2px rgba(11,46,35,.06),0 12px 32px -12px rgba(11,46,35,.18);
    --shadow-hover:0 2px 4px rgba(11,46,35,.08),0 20px 44px -16px rgba(11,46,35,.28);
    --shadow-soft:0 1px 2px rgba(11,46,35,.05),0 6px 18px -10px rgba(11,46,35,.16);
    --container:1200px;
    --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Inter,ui-sans-serif,system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:800;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
  input{font:inherit;}
  :focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:8px;}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
  .section{padding:72px 0;}
  .section-sm{padding:48px 0;}
  .stripe{
    background-image:repeating-linear-gradient(45deg,rgba(11,46,35,.04) 0 6px,transparent 6px 12px);
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px -14px rgba(11,46,35,.35);}
  .topbar{height:56px;display:flex;align-items:center;}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
  .brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--brand-900);}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;flex:0 0 34px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--brand-900);
  }
  .brand-mark svg{width:20px;height:20px;}
  .brand-text{white-space:nowrap;}
  .topbar-actions{display:flex;align-items:center;gap:10px;}
  .icon-btn{
    width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
    color:var(--brand-700);border:1px solid var(--line);background:var(--card);
    transition:background .2s ease,color .2s ease,transform .2s ease;
  }
  .icon-btn:hover{background:var(--paper);color:var(--brand-900);transform:translateY(-1px);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);font-weight:700;font-size:15px;line-height:1;
    padding:0 20px;height:44px;white-space:nowrap;
    transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .btn-sm{height:36px;font-size:14px;padding:0 16px;}
  .btn-lg{height:52px;font-size:16px;padding:0 26px;}
  .btn-primary{background:var(--amber-500);color:var(--ink);box-shadow:0 8px 20px -12px rgba(245,165,36,.9);}
  .btn-primary:hover{background:#e2961a;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(245,165,36,.95);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{border:1px solid var(--brand-700);color:var(--brand-700);background:var(--card);}
  .btn-outline:hover{background:#f0f5f2;transform:translateY(-1px);}
  .btn-outline:active{transform:translateY(0);}
  .btn-ghost{border:1px solid var(--line);color:var(--brand-700);background:var(--card);}
  .btn-ghost:hover{background:var(--paper);border-color:#cfd6d1;}
  .btn-light{background:var(--card);color:var(--brand-900);}
  .btn-light:hover{background:#eef1ec;transform:translateY(-1px);}
  .btn-outline-light{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent;}
  .btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px);}

  .channelbar{height:48px;border-top:1px solid var(--line);}
  .channelbar-inner{display:flex;align-items:center;gap:18px;height:100%;}
  .brand-mini{display:none;font-size:15px;}
  .channel-nav{display:flex;align-items:center;gap:4px;height:100%;overflow-x:auto;scrollbar-width:none;}
  .channel-nav::-webkit-scrollbar{display:none;}
  .channel{
    position:relative;display:inline-flex;align-items:center;height:100%;
    padding:0 14px;font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .channel::after{
    content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
    background:var(--lime-400);transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
  }
  .channel:hover{color:var(--brand-900);background:rgba(247,246,242,.9);}
  .channel:hover::after{transform:scaleX(1);}
  .channel.active{color:var(--brand-900);}
  .channel.active::after{transform:scaleX(1);}
  .hot-searches{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none;}
  .hot-searches::-webkit-scrollbar{display:none;}
  .hot-pill{
    display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
    font-size:13px;font-weight:600;color:var(--brand-700);
    background:rgba(61,214,140,.12);border:1px solid rgba(61,214,140,.35);
    padding:5px 12px;border-radius:999px;transition:background .2s ease,transform .2s ease;
  }
  .hot-pill:hover{background:rgba(61,214,140,.24);transform:translateY(-1px);}
  .hot-pill i{font-size:11px;color:var(--brand-500);}

  .site-header.is-scrolled .topbar{display:none;}
  .site-header.is-scrolled .channelbar{height:64px;border-top:none;}
  .site-header.is-scrolled .brand-mini{display:inline-flex;}
  .site-header.is-scrolled .channel-nav{height:64px;}

  .search-panel{
    display:none;border-top:1px solid var(--line);background:var(--card);
    padding:16px 0 20px;
  }
  .search-panel.is-open{display:block;}
  .search-form{display:flex;gap:10px;max-width:720px;}
  .search-input{
    flex:1;height:48px;border-radius:12px;border:1px solid var(--line);
    padding:0 16px;background:var(--paper);color:var(--ink);
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .search-input::placeholder{color:#93a09b;}
  .search-input:focus{outline:none;border-color:var(--brand-500);background:var(--card);box-shadow:0 0 0 4px rgba(30,122,87,.12);}
  .search-tips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

  /* ============ 移动抽屉 ============ */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(11,46,35,.45);z-index:90;
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;z-index:100;
    background:var(--card);transform:translateX(102%);
    transition:transform .28s ease;padding:20px;overflow-y:auto;
    box-shadow:-16px 0 40px -20px rgba(11,46,35,.5);
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer-title{font-size:15px;font-weight:800;color:var(--brand-900);}
  .drawer-list{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:12px 14px;border-radius:12px;font-weight:600;color:var(--brand-900);
    border:1px solid var(--line);transition:background .2s ease,border-color .2s ease;
  }
  .drawer-link:hover{background:var(--paper);border-color:#cfd6d1;}
  .drawer-link.active{background:rgba(61,214,140,.12);border-color:rgba(61,214,140,.5);}
  .drawer-actions{display:flex;flex-direction:column;gap:10px;}
  .drawer-actions .btn{width:100%;}

  /* ============ Hero ============ */
  .hero{position:relative;overflow:hidden;background:var(--card);border-bottom:1px solid var(--line);}
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(11,46,35,.035) 0 6px,transparent 6px 12px);
    pointer-events:none;
  }
  .hero-inner{
    position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
    padding:56px 0 64px;
  }
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
  .breadcrumb a{transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--brand-700);}
  .breadcrumb .sep{color:#c3cbc6;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
    color:var(--brand-700);background:rgba(61,214,140,.14);
    border:1px solid rgba(61,214,140,.4);border-radius:999px;padding:5px 14px;margin-bottom:18px;
  }
  .eyebrow i{font-size:11px;}
  .hero h1{font-size:clamp(26px,3.3vw,38px);color:var(--brand-900);margin-bottom:16px;}
  .hero h1 em{font-style:normal;color:var(--brand-500);}
  .hero-lead{font-size:17px;color:var(--muted);max-width:620px;margin-bottom:26px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px;}
  .point-chip{
    display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--brand-700);
    background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:6px 13px;
  }
  .point-chip i{color:var(--brand-500);font-size:12px;}

  .hero-visual{position:relative;}
  .hero-figure{
    position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--shadow-card);aspect-ratio:16/11;background:var(--paper);
  }
  .hero-figure img{width:100%;height:100%;object-fit:cover;}
  .hero-float{
    position:absolute;left:-18px;bottom:22px;
    background:var(--card);border:1px solid var(--line);border-radius:16px;
    padding:14px 16px;box-shadow:var(--shadow-hover);display:flex;align-items:center;gap:12px;
    min-width:210px;
  }
  .hero-float .badge-version{
    background:rgba(61,214,140,.16);color:var(--brand-900);
    font-size:12px;font-weight:800;border-radius:999px;padding:4px 10px;
  }
  .hero-float .float-label{font-size:12px;color:var(--muted);line-height:1.4;}

  /* ============ 通用板块头 ============ */
  .section-head{max-width:760px;margin-bottom:36px;}
  .section-kicker{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
    color:var(--brand-500);letter-spacing:.04em;margin-bottom:12px;
  }
  .section-kicker .num{
    display:inline-flex;align-items:center;justify-content:center;
    width:26px;height:26px;border-radius:9px;background:var(--brand-900);color:var(--lime-400);
    font-size:12px;font-weight:800;letter-spacing:0;
  }
  .section-head h2{font-size:clamp(22px,2.4vw,30px);color:var(--brand-900);margin-bottom:14px;}
  .section-head p{color:var(--muted);font-size:16px;}

  /* ============ 时间轴 ============ */
  .timeline{position:relative;margin-top:8px;}
  .timeline::before{
    content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
    background:linear-gradient(180deg,var(--lime-400),rgba(61,214,140,.15));
    border-radius:2px;
  }
  .step{
    position:relative;display:grid;grid-template-columns:48px 1fr;gap:20px;
    padding:16px 18px 16px 0;border-radius:14px;
    transition:background .2s ease;
  }
  .step:hover{background:rgba(255,255,255,.85);}
  .step-num{
    position:relative;z-index:1;
    width:48px;height:48px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    background:var(--card);border:1px solid var(--line);
    font-weight:800;font-size:15px;color:var(--brand-700);
    box-shadow:var(--shadow-soft);
  }
  .step:hover .step-num{border-color:rgba(61,214,140,.6);color:var(--brand-900);}
  .step-body{padding-top:2px;}
  .step-title{font-size:17px;color:var(--brand-900);margin-bottom:6px;font-weight:800;}
  .step-desc{color:var(--muted);font-size:15px;}

  /* ============ 准备清单 ============ */
  .prep-grid{display:grid;grid-template-columns:6fr 6fr;gap:32px;align-items:start;}
  .prep-figure{
    border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--shadow-card);aspect-ratio:16/10;background:var(--paper);
  }
  .prep-figure img{width:100%;height:100%;object-fit:cover;}
  .spec-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);overflow:hidden;
  }
  .spec-row{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:15px 20px;border-bottom:1px solid var(--line);
    transition:background .2s ease,box-shadow .2s ease;position:relative;
  }
  .spec-row:last-child{border-bottom:none;}
  .spec-row::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;
    transition:background .2s ease;
  }
  .spec-row:hover{background:var(--paper);}
  .spec-row:hover::before{background:var(--lime-400);}
  .spec-key{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-900);font-size:15px;}
  .spec-key i{color:var(--brand-500);font-size:14px;width:16px;text-align:center;}
  .spec-val{color:var(--muted);font-size:14px;text-align:right;}
  .prep-note{
    margin-top:20px;padding:16px 18px;border-radius:14px;
    background:rgba(61,214,140,.1);border:1px solid rgba(61,214,140,.35);
    color:var(--brand-900);font-size:14px;display:flex;gap:10px;align-items:flex-start;
  }
  .prep-note i{color:var(--brand-500);margin-top:4px;}

  /* ============ 卡片网格 ============ */
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .info-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);overflow:hidden;display:flex;flex-direction:column;
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#d3dbd6;}
  .card-media{aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
  .info-card:hover .card-media img{transform:scale(1.04);}
  .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .tag{
    display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
    font-size:12px;font-weight:700;color:var(--brand-700);
    background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:4px 11px;
  }
  .card-title{font-size:17px;color:var(--brand-900);font-weight:800;}
  .card-text{color:var(--muted);font-size:14.5px;flex:1;}
  .card-link{
    display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;
    color:var(--brand-500);padding-bottom:2px;
    background-image:linear-gradient(currentColor,currentColor);
    background-size:100% 1px;background-repeat:no-repeat;background-position:0 100%;
    transition:color .2s ease,gap .2s ease;
  }
  .card-link:hover{color:var(--brand-900);gap:11px;}

  /* ============ 深色提示带 ============ */
  .notice-band{
    background:var(--brand-900);color:#fff;border-radius:24px;position:relative;overflow:hidden;
    padding:44px 40px;
  }
  .notice-band::after{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.04) 0 6px,transparent 6px 12px);
    pointer-events:none;
  }
  .notice-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:14px;position:relative;}
  .notice-band > p{color:rgba(255,255,255,.75);position:relative;max-width:760px;margin-bottom:26px;}
  .notice-list{
    position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  }
  .notice-item{
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
    border-radius:16px;padding:18px;
  }
  .notice-item .notice-ico{
    width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
    background:rgba(61,214,140,.16);color:var(--lime-400);margin-bottom:12px;font-size:15px;
  }
  .notice-item h3{font-size:15.5px;margin-bottom:6px;color:#fff;}
  .notice-item p{font-size:14px;color:rgba(255,255,255,.72);}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:900px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:16px;
    margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
  }
  .faq-item:hover{border-color:#d3dbd6;box-shadow:var(--shadow-soft);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:16px;font-weight:700;color:var(--brand-900);
    transition:background .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{background:var(--paper);}
  .faq-item summary .fa-chevron-down{
    color:var(--brand-500);font-size:13px;transition:transform .25s ease;flex:0 0 auto;
  }
  .faq-item[open] summary .fa-chevron-down{transform:rotate(180deg);}
  .faq-item[open] summary{border-bottom:1px solid var(--line);}
  .faq-answer{padding:16px 22px 20px;color:var(--muted);font-size:15px;}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
    padding:60px 0;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.045) 0 6px,transparent 6px 12px);
  }
  .cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
  .cta-inner h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px;}
  .cta-inner p{color:rgba(255,255,255,.75);max-width:560px;font-size:15.5px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:56px 0 26px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.14);}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-text{color:#fff;font-weight:800;font-size:16px;}
  .footer-desc{font-size:14px;color:rgba(255,255,255,.62);max-width:320px;}
  .footer-title{color:#fff;font-weight:800;font-size:15px;margin-bottom:14px;}
  .footer-links{display:flex;flex-direction:column;gap:9px;}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease,padding-left .2s ease;}
  .footer-links a:hover{color:var(--lime-400);padding-left:3px;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding-top:22px;font-size:13px;color:rgba(255,255,255,.55);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .hero-inner{grid-template-columns:1fr;gap:36px;padding:44px 0 52px;}
    .hero-visual{max-width:560px;}
    .hero-float{left:auto;right:16px;bottom:16px;}
    .prep-grid{grid-template-columns:1fr;gap:24px;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .notice-list{grid-template-columns:1fr;max-width:640px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:768px){
    .section{padding:56px 0;}
    .section-sm{padding:38px 0;}
    .hot-searches{display:none;}
    .topbar-actions .btn-ghost{display:none;}
    .channel-nav .channel{padding:0 12px;font-size:14px;}
    .channel-nav .channel::after{left:12px;right:12px;}
    .card-grid{grid-template-columns:1fr;}
    .hero-actions{gap:10px;}
    .hero-actions .btn{flex:1 1 auto;}
    .notice-band{padding:32px 22px;border-radius:20px;}
    .cta-band{padding:48px 0;}
    .timeline::before{left:19px;}
    .step{grid-template-columns:40px 1fr;gap:16px;}
    .step-num{width:40px;height:40px;border-radius:12px;font-size:14px;}
  }
  @media (max-width:520px){
    .brand-text{font-size:15px;}
    .hero-points{gap:8px;}
    .point-chip{font-size:12px;padding:5px 11px;}
    .spec-row{flex-direction:column;align-items:flex-start;gap:4px;}
    .spec-val{text-align:left;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
  }

/* roulang page: article */
:root{
  --brand-900:#0B2E23;
  --brand-700:#12503C;
  --brand-500:#1E7A57;
  --lime-400:#3DD68C;
  --amber-500:#F5A524;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#12181A;
  --muted:#5B6A66;
  --line:#E2E4DE;
  --radius-card:18px;
  --radius-btn:12px;
  --shadow-sm:0 1px 2px rgba(11,46,35,.06), 0 12px 32px -12px rgba(11,46,35,.18);
  --shadow-md:0 2px 6px rgba(11,46,35,.08), 0 20px 44px -16px rgba(11,46,35,.28);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Inter,ui-sans-serif,system-ui,sans-serif;
  --font-num:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.page{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.page img{max-width:100%;display:block;}
body.page button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.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:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:var(--shadow-md);}
.brand-row{height:56px;display:flex;align-items:center;background:var(--card);border-bottom:1px solid var(--line);transition:height .25s ease;}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0;}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--brand-900);display:inline-flex;align-items:center;justify-content:center;flex:none;}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-text{font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:10px;flex:none;}
.brand-link{font-size:13.5px;font-weight:600;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:9px;transition:color .18s ease,background-color .18s ease;}
.brand-link:hover{color:var(--brand-700);background:var(--paper);}

.channel-row{background:var(--card);position:relative;}
.channel-inner{display:flex;align-items:center;gap:16px;height:48px;width:100%;}
.channel-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;font-size:15px;font-weight:600;color:var(--muted);text-decoration:none;white-space:nowrap;transition:color .18s ease,background-color .18s ease;}
.channel:hover{color:var(--brand-700);background:var(--paper);}
.channel.active{color:var(--brand-900);}
.channel.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--lime-400);}
.channel-tools{display:flex;align-items:center;gap:10px;flex:none;}
.hot-pills{display:flex;align-items:center;gap:6px;max-width:330px;overflow-x:auto;scrollbar-width:none;}
.hot-pills::-webkit-scrollbar{display:none;}
.pill{display:inline-flex;align-items:center;height:27px;padding:0 12px;border-radius:999px;background:var(--paper);border:1px solid var(--line);color:var(--brand-700);font-size:12.5px;font-weight:600;text-decoration:none;white-space:nowrap;transition:background-color .18s ease,border-color .18s ease,color .18s ease;}
.pill:hover{background:#EAF6F0;border-color:var(--lime-400);color:var(--brand-900);}
.icon-btn{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:#fff;color:var(--brand-700);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;flex:none;}
.icon-btn:hover{border-color:var(--brand-500);background:var(--paper);color:var(--brand-900);}
.icon-btn:active{transform:translateY(1px);}
.icon-btn:focus-visible,.btn:focus-visible,.channel:focus-visible,.toc-list a:focus-visible,.footer-links a:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;}
.icon-btn svg{width:18px;height:18px;display:block;}

.search-wrap{position:relative;}
.search-panel{position:absolute;right:0;top:calc(100% + 12px);width:352px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-md);padding:16px;display:none;z-index:90;}
.search-panel.open{display:block;}
.search-field{display:flex;align-items:center;gap:10px;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:var(--paper);transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;}
.search-field:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(30,122,87,.14);background:#fff;}
.search-field input{flex:1;border:0;outline:0;background:transparent;font-size:14.5px;color:var(--ink);min-width:0;}
.search-field svg{width:18px;height:18px;color:var(--muted);flex:none;}
.search-hint{font-size:12.5px;color:var(--muted);margin:12px 0 8px;}
.search-pills{display:flex;flex-wrap:wrap;gap:6px;}

.read-bar{position:absolute;left:0;right:0;bottom:-1px;height:3px;background:transparent;overflow:hidden;}
.read-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--lime-400),var(--brand-500));transition:width .12s linear;}

.nav-toggle{display:none;}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(11,46,35,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:95;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;background:#fff;z-index:96;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;box-shadow:var(--shadow-md);}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-nav{display:flex;flex-direction:column;padding:10px 12px;overflow-y:auto;flex:1;}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:14px 12px;border-radius:12px;color:var(--ink);text-decoration:none;font-weight:600;font-size:15px;border-left:3px solid transparent;transition:background-color .18s ease,border-color .18s ease,color .18s ease;}
.drawer-nav a:hover{background:var(--paper);border-left-color:var(--lime-400);color:var(--brand-700);}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--radius-btn);border:1px solid transparent;font-size:15px;font-weight:700;line-height:1;text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--amber-500);color:#1A1200;}
.btn-primary:hover{background:#E0951A;transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700);}
.btn-outline:hover{background:#EFF6F2;transform:translateY(-1px);}
.btn-brand{background:var(--brand-700);color:#fff;}
.btn-brand:hover{background:#0E4231;transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;border-radius:10px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#F7F6F2 100%);border-bottom:1px solid var(--line);}
.article-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(11,46,35,.035) 0 2px,transparent 2px 12px);pointer-events:none;}
.article-hero-inner{position:relative;z-index:1;padding-top:26px;padding-bottom:40px;max-width:1120px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.breadcrumb a{color:var(--muted);text-decoration:none;transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--brand-900);font-weight:600;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-meta-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;}
.badge{display:inline-flex;align-items:center;height:27px;padding:0 12px;border-radius:999px;background:var(--paper);border:1px solid var(--line);color:var(--brand-700);font-size:12.5px;font-weight:700;white-space:nowrap;}
.badge-lime{background:rgba(61,214,140,.16);border-color:transparent;color:var(--brand-900);}
.badge-amber{background:rgba(245,165,36,.16);border-color:transparent;color:#7A4E00;}
.article-title{font-size:32px;line-height:1.32;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);margin:0 0 18px;max-width:920px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13.5px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.article-meta .num{font-family:var(--font-num);letter-spacing:.02em;}

/* ---------- layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;max-width:1120px;margin:0 auto;padding:44px 20px 80px;align-items:start;}
.article-body{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:40px 44px;font-size:16px;line-height:1.9;color:#1B2422;}
.article-body > *:first-child{margin-top:0;}
.article-body > *:last-child{margin-bottom:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{font-size:23px;line-height:1.4;font-weight:800;color:var(--brand-900);margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--lime-400);letter-spacing:-.01em;}
.article-body h3{font-size:18px;line-height:1.5;font-weight:700;color:var(--brand-900);margin:26px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body li{margin-bottom:8px;}
.article-body img{border-radius:14px;margin:22px 0 10px;width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--paper);border-left:4px solid var(--brand-500);border-radius:0 12px 12px 0;color:#23322D;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--brand-700);}
.article-body code{background:rgba(11,46,35,.07);padding:2px 6px;border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;}
.article-body pre{background:var(--ink);color:#E6EFEB;padding:18px 20px;border-radius:12px;overflow-x:auto;margin:24px 0;font-size:13.5px;line-height:1.7;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:24px 0;font-size:14.5px;}
.article-body th{background:var(--paper);text-align:left;font-weight:700;color:var(--brand-900);}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even) td{background:#FBFBF9;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{padding:36px 8px;text-align:center;}
.empty-icon{width:56px;height:56px;border-radius:16px;background:var(--paper);border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;}
.empty-icon svg{width:26px;height:26px;color:var(--brand-500);}
.empty-title{font-size:20px;font-weight:800;color:var(--brand-900);margin:0 0 8px;}
.empty-desc{font-size:14.5px;color:var(--muted);margin:0 auto 22px;max-width:420px;}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px;}
.tag-label{font-size:13px;font-weight:700;color:var(--muted);}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--brand-700);font-size:13.5px;font-weight:600;text-decoration:none;transition:background-color .18s ease,border-color .18s ease,transform .18s ease;}
.tag:hover{background:#EAF6F0;border-color:var(--lime-400);transform:translateY(-1px);}

/* ---------- aside ---------- */
.article-aside{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}
.aside-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-sm);}
.aside-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--brand-900);margin:0 0 14px;}
.aside-title span.line{flex:1;height:1px;background:var(--line);}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:330px;overflow-y:auto;}
.toc-list a{display:block;padding:8px 10px;border-left:3px solid transparent;border-radius:0 8px 8px 0;color:var(--muted);text-decoration:none;font-size:14px;line-height:1.6;transition:background-color .18s ease,border-color .18s ease,color .18s ease;}
.toc-list a:hover{background:var(--paper);color:var(--brand-700);border-left-color:var(--lime-400);}
.toc-list a.active{background:var(--paper);color:var(--brand-900);font-weight:700;border-left-color:var(--lime-400);}
.toc-list .lvl3 a{padding-left:22px;font-size:13.5px;}
.toc-empty{font-size:13.5px;color:var(--muted);margin:0;}
.related-item{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:12px;text-decoration:none;border-left:3px solid transparent;transition:background-color .18s ease,border-color .18s ease;}
.related-item:hover{background:var(--paper);border-left-color:var(--lime-400);}
.related-item img{width:76px;height:56px;border-radius:10px;object-fit:cover;flex:none;background:var(--paper);}
.related-item .r-title{font-size:14px;font-weight:700;color:var(--ink);line-height:1.55;margin:0 0 4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-item .r-time{font-size:12.5px;color:var(--muted);font-family:var(--font-num);}
.aside-cta{background:linear-gradient(150deg,var(--brand-700),var(--brand-900));border:0;color:#DCEFE6;}
.aside-cta .aside-title{color:#fff;}
.aside-cta p{font-size:13.5px;line-height:1.8;color:#B9D6C9;margin:0 0 14px;}

/* ---------- 继续阅读 / 相关推荐 ---------- */
.section{padding:72px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-500);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;}
.section-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--lime-400);}
.section-title{font-size:26px;font-weight:800;color:var(--brand-900);margin:0;letter-spacing:-.01em;}
.section-sub{font-size:14.5px;color:var(--muted);margin:8px 0 0;max-width:620px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.card-media{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:800;color:var(--brand-900);margin:0;line-height:1.5;}
.card-body p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.8;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px;}
.card-link{font-size:14px;font-weight:700;color:var(--brand-500);text-decoration:none;}
.card-link:hover{color:var(--brand-900);}
.card-time{font-size:12.5px;color:var(--muted);font-family:var(--font-num);}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);padding:64px 0;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);pointer-events:none;}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-title{font-size:26px;font-weight:800;color:#fff;margin:0 0 10px;letter-spacing:-.01em;}
.cta-text{font-size:14.5px;color:#B9D6C9;margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;}

/* ---------- footer ---------- */
.site-footer{position:relative;overflow:hidden;background:var(--brand-900);color:#CFE3DA;padding:64px 0 28px;}
.site-footer::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.04) 0 2px,transparent 2px 14px);pointer-events:none;}
.site-footer .container{position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);}
.footer-brand .brand-text{color:#fff;font-size:17px;}
.footer-desc{font-size:14px;line-height:1.85;color:#A9C4B8;margin:0;max-width:330px;}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin:0 0 14px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#A9C4B8;text-decoration:none;font-size:14px;transition:color .18s ease;}
.footer-links a:hover{color:var(--lime-400);}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8FAEA1;}

/* ---------- to top ---------- */
.to-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:14px;border:0;background:var(--brand-700);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .18s ease;z-index:70;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-900);}
.to-top svg{width:20px;height:20px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding:32px 20px 64px;}
  .article-aside{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hot-pills{max-width:200px;}
}
@media (max-width:768px){
  .brand-row{height:52px;}
  .brand-text{font-size:16px;}
  .brand-link{display:none;}
  .channel-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-inner{gap:10px;}
  .channel-inner .brand-actions{display:none;}
  .hot-pills{display:none;}
  .channel-tools{margin-left:auto;}
  .article-title{font-size:25px;}
  .article-hero-inner{padding-top:20px;padding-bottom:30px;}
  .article-body{padding:24px 20px;font-size:15.5px;}
  .article-body h2{font-size:20px;}
  .article-body h3{font-size:17px;}
  .section{padding:52px 0;}
  .section-title{font-size:22px;}
  .grid-3{grid-template-columns:minmax(0,1fr);}
  .cta-title{font-size:21px;}
  .cta-band{padding:48px 0;}
  .search-panel{position:fixed;left:16px;right:16px;top:110px;width:auto;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:520px){
  .article-title{font-size:22px;}
  .article-meta{gap:10px;font-size:12.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-actions .btn-sm{padding:0 12px;}
}

/* roulang page: category3 */
:root{
    --brand-900:#0B2E23;
    --brand-700:#12503C;
    --brand-500:#1E7A57;
    --lime-400:#3DD68C;
    --amber-500:#F5A524;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --ink:#12181A;
    --muted:#5B6A66;
    --line:#E2E4DE;
    --radius-card:18px;
    --radius-btn:12px;
    --radius-pill:999px;
    --shadow-sm:0 1px 2px rgba(11,46,35,.06), 0 12px 32px -12px rgba(11,46,35,.18);
    --shadow-lg:0 2px 4px rgba(11,46,35,.08), 0 22px 48px -18px rgba(11,46,35,.28);
    --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Inter,ui-sans-serif,system-ui,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-cn);
    background:var(--paper);
    color:var(--ink);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-0.01em;color:var(--brand-900);}
  p{margin:0;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
  img{max-width:100%;display:block;}
  ul,ol{margin:0;padding:0;list-style:none;}
  button{font-family:inherit;cursor:pointer;border:none;background:none;}
  input{font-family:inherit;}
  :focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  .section{padding:88px 0;}
  .section-tight{padding:56px 0;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.08em;
    color:var(--brand-700);background:rgba(30,122,87,.09);
    border:1px solid rgba(30,122,87,.18);
    padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime-400);}
  .section-title{font-size:clamp(22px,3vw,32px);}
  .section-sub{margin-top:12px;color:var(--muted);max-width:760px;font-size:15.5px;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.scrolled{box-shadow:0 10px 26px -16px rgba(11,46,35,.34);}
  .brand-row{display:flex;align-items:center;justify-content:space-between;height:56px;gap:16px;}
  .brand{display:flex;align-items:center;gap:10px;min-width:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;flex:none;
    background:linear-gradient(140deg,var(--brand-900),var(--brand-700));
    display:flex;align-items:center;justify-content:center;
  }
  .brand-mark svg{width:20px;height:20px;}
  .brand-text{font-weight:800;font-size:16.5px;color:var(--brand-900);letter-spacing:-0.01em;white-space:nowrap;}
  .brand-actions{display:flex;align-items:center;gap:10px;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--radius-btn);
    font-size:14.5px;font-weight:700;white-space:nowrap;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  }
  .btn-primary{background:var(--amber-500);color:#1B1403;box-shadow:0 10px 22px -12px rgba(245,165,36,.85);}
  .btn-primary:hover{background:#E1951A;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(245,165,36,.9);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{background:#fff;color:var(--brand-700);border:1.5px solid var(--brand-700);}
  .btn-outline:hover{background:rgba(18,80,60,.06);transform:translateY(-1px);}
  .btn-ghost{background:rgba(18,80,60,.07);color:var(--brand-700);}
  .btn-ghost:hover{background:rgba(18,80,60,.13);}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
  .btn-lg{height:52px;padding:0 28px;font-size:15.5px;}

  .channel-bar{border-top:1px solid var(--line);}
  .channel-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:48px;}
  .channel-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;}
  .channel-nav::-webkit-scrollbar{display:none;}
  .channel{
    position:relative;display:inline-block;padding:0 14px;height:48px;line-height:48px;
    font-size:14.5px;font-weight:600;color:var(--muted);white-space:nowrap;
  }
  .channel::after{
    content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
    background:var(--lime-400);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
  }
  .channel:hover{color:var(--brand-700);}
  .channel:hover::after{transform:scaleX(1);}
  .channel.active{color:var(--brand-900);font-weight:800;}
  .channel.active::after{transform:scaleX(1);}
  .hot-tags{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;}
  .hot-tags::-webkit-scrollbar{display:none;}
  .hot-tag{
    font-size:12.5px;color:var(--brand-700);background:var(--paper);
    border:1px solid var(--line);border-radius:var(--radius-pill);
    padding:5px 12px;white-space:nowrap;
  }
  .hot-tag:hover{background:rgba(61,214,140,.14);border-color:rgba(61,214,140,.5);color:var(--brand-900);}

  .hamburger{
    display:none;width:40px;height:40px;border-radius:11px;
    align-items:center;justify-content:center;background:rgba(18,80,60,.07);color:var(--brand-900);
  }
  .hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
  .hamburger span::before,.hamburger span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  }
  .hamburger span::before{top:-6px;}
  .hamburger span::after{top:6px;}

  .drawer-mask{
    position:fixed;inset:0;background:rgba(11,46,35,.45);
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;z-index:90;
    background:#fff;transform:translateX(100%);transition:transform .3s ease;
    padding:22px 20px;overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
  .drawer-close{width:38px;height:38px;border-radius:11px;background:var(--paper);font-size:18px;color:var(--brand-900);}
  .drawer-title{font-size:12.5px;font-weight:800;letter-spacing:.1em;color:var(--muted);margin:18px 0 8px;}
  .drawer-link{
    display:block;padding:12px 14px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink);
  }
  .drawer-link:hover{background:var(--paper);color:var(--brand-700);}
  .drawer-link.active{background:rgba(61,214,140,.16);color:var(--brand-900);}
  .drawer-cta{margin-top:24px;display:grid;gap:10px;}

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background:linear-gradient(120deg,rgba(11,46,35,.95),rgba(18,80,60,.9)),
      url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    color:#fff;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
    opacity:.7;pointer-events:none;
  }
  .hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:72px 0 64px;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;}
  .breadcrumb a:hover{color:var(--lime-400);}
  .page-hero h1{color:#fff;font-size:clamp(24px,3.4vw,38px);max-width:20em;}
  .hero-lead{margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:34em;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18);}
  .metric-num{font-family:Inter,var(--font-cn);font-size:22px;font-weight:800;color:var(--lime-400);letter-spacing:-0.01em;}
  .metric-label{font-size:13px;color:rgba(255,255,255,.72);}
  .hero-visual{position:relative;}
  .hero-visual img{
    width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);
    border:1px solid rgba(255,255,255,.22);box-shadow:0 30px 60px -30px rgba(0,0,0,.6);
  }
  .version-float{
    position:absolute;left:-14px;bottom:-18px;background:#fff;color:var(--brand-900);
    border-radius:16px;padding:12px 16px;display:flex;align-items:center;gap:12px;
    box-shadow:var(--shadow-lg);
  }
  .version-badge{
    font-family:Inter,var(--font-cn);font-size:12.5px;font-weight:800;
    background:rgba(61,214,140,.18);color:var(--brand-900);
    padding:4px 10px;border-radius:var(--radius-pill);
  }
  .version-text{font-size:12.5px;color:var(--muted);}

  /* ---------- Doc layout ---------- */
  .doc-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:52px;align-items:start;}
  .doc-toc{
    position:sticky;top:118px;background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:22px 20px;box-shadow:var(--shadow-sm);
  }
  .toc-title{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;}
  .toc-list{display:grid;gap:2px;}
  .toc-link{
    display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:10px;
    font-size:14px;font-weight:600;color:var(--muted);border-left:3px solid transparent;
  }
  .toc-link .toc-num{font-family:Inter,var(--font-cn);font-size:11.5px;font-weight:800;color:var(--brand-500);opacity:.85;}
  .toc-link:hover{background:var(--paper);color:var(--brand-900);border-left-color:var(--lime-400);}
  .toc-link.active{background:rgba(61,214,140,.14);color:var(--brand-900);border-left-color:var(--lime-400);}
  .toc-hint{
    margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
    font-size:12.5px;color:var(--muted);line-height:1.7;
  }

  .doc-body{display:grid;gap:44px;}
  .doc-block{scroll-margin-top:130px;}
  .doc-block h2{font-size:clamp(19px,2.2vw,24px);display:flex;align-items:center;gap:12px;}
  .doc-block h2 .idx{
    font-family:Inter,var(--font-cn);font-size:13px;font-weight:800;color:var(--brand-900);
    background:rgba(61,214,140,.2);border-radius:8px;padding:4px 9px;flex:none;
  }
  .doc-block p{margin-top:14px;color:#26302E;font-size:15.6px;line-height:1.95;}
  .figure{margin-top:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);}
  .figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .figure figcaption{padding:12px 18px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);background:#FCFCFA;}
  .note{
    margin-top:20px;display:flex;gap:14px;align-items:flex-start;
    background:var(--card);border:1px solid var(--line);border-left:4px solid var(--brand-500);
    border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-sm);
  }
  .note .note-label{
    flex:none;font-size:12.5px;font-weight:800;color:var(--brand-700);
    background:rgba(30,122,87,.1);border-radius:var(--radius-pill);padding:4px 10px;margin-top:3px;
  }
  .note p{margin:0;font-size:14.6px;color:#2C3835;}
  .plain-list{margin-top:16px;display:grid;gap:10px;}
  .plain-list li{
    position:relative;padding-left:20px;font-size:15.4px;color:#26302E;
  }
  .plain-list li::before{
    content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
    background:rgba(61,214,140,.9);
  }

  /* ---------- Steps strip ---------- */
  .steps-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .steps-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin-top:38px;}
  .step-card{
    position:relative;background:var(--paper);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:24px 22px;
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);background:#fff;}
  .step-num{
    font-family:Inter,var(--font-cn);font-size:13px;font-weight:800;color:var(--brand-900);
    background:rgba(61,214,140,.22);border-radius:8px;padding:4px 9px;display:inline-block;
  }
  .step-card h3{margin-top:14px;font-size:16.5px;}
  .step-card p{margin-top:10px;font-size:14.4px;color:var(--muted);line-height:1.85;}

  /* ---------- Platform cards ---------- */
  .platform-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:38px;}
  .platform-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px 24px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .platform-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(61,214,140,.55);}
  .platform-top{display:flex;align-items:center;gap:12px;}
  .platform-icon{
    width:44px;height:44px;border-radius:13px;background:rgba(30,122,87,.1);
    display:flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:18px;font-weight:800;
  }
  .platform-card h3{font-size:17px;}
  .platform-card p{margin-top:14px;font-size:14.4px;color:var(--muted);line-height:1.85;}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .tag{
    font-size:12.5px;font-weight:700;color:var(--brand-700);
    background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-pill);padding:5px 12px;
  }

  /* ---------- FAQ ---------- */
  .faq-list{margin-top:36px;display:grid;gap:14px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:16px;
    overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .2s ease;
  }
  .faq-item[open]{border-color:rgba(30,122,87,.45);}
  .faq-summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:15.6px;font-weight:700;color:var(--brand-900);cursor:pointer;
    list-style:none;transition:background-color .2s ease;
  }
  .faq-summary::-webkit-details-marker{display:none;}
  .faq-summary:hover{background:#F2F1EB;}
  .faq-icon{
    flex:none;width:26px;height:26px;border-radius:50%;
    background:rgba(61,214,140,.2);color:var(--brand-900);
    display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;
    transition:transform .22s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);}
  .faq-answer{padding:0 22px 20px;font-size:14.8px;color:var(--muted);line-height:1.9;}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
    border-radius:24px;padding:56px 48px;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 1px,transparent 1px 16px);
    pointer-events:none;
  }
  .cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
  .cta-band h2{color:#fff;font-size:clamp(20px,2.6vw,28px);}
  .cta-band p{margin-top:12px;color:rgba(255,255,255,.8);font-size:15px;max-width:40em;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-text{color:#fff;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.08);}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:32em;}
  .footer-title{font-size:13px;font-weight:800;letter-spacing:.1em;color:#fff;margin-bottom:14px;}
  .footer-links{display:grid;gap:9px;}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
  .footer-links a:hover{color:var(--lime-400);}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.55);
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .channel-bar{display:none;}
    .hamburger{display:flex;}
    .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 52px;}
    .version-float{left:12px;bottom:-16px;}
    .doc-layout{grid-template-columns:1fr;gap:28px;}
    .doc-toc{position:static;padding:18px 16px;}
    .toc-list{grid-auto-flow:column;grid-auto-columns:max-content;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:4px;}
    .toc-list::-webkit-scrollbar{display:none;}
    .toc-link{border-left:none;border:1px solid var(--line);border-radius:var(--radius-pill);white-space:nowrap;}
    .toc-link.active{border-color:rgba(61,214,140,.6);}
    .toc-link:hover{border-left-color:transparent;}
    .toc-hint{display:none;}
    .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .platform-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;}
    .cta-band{padding:44px 32px;}
  }
  @media (max-width:768px){
    .section{padding:56px 0;}
    .brand-actions .btn{display:none;}
    .brand-actions .btn-sm.btn-outline{display:inline-flex;}
    .hero-metrics{gap:20px;}
    .steps-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
  }
  @media (max-width:520px){
    .brand-text{font-size:15px;}
    .brand-actions .btn-outline{display:none;}
    .platform-grid{grid-template-columns:1fr;}
    .cta-band{padding:36px 22px;border-radius:20px;}
    .cta-actions .btn{width:100%;}
    .hot-tags{display:none;}
    .footer-bottom{flex-direction:column;gap:8px;}
  }

/* roulang page: category2 */
:root{
    --brand-900:#0B2E23;
    --brand-700:#12503C;
    --brand-500:#1E7A57;
    --lime-400:#3DD68C;
    --amber-500:#F5A524;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --ink:#12181A;
    --muted:#5B6A66;
    --line:#E2E4DE;
    --radius-card:18px;
    --radius-btn:12px;
    --shadow-sm:0 1px 2px rgba(11,46,35,.06),0 12px 32px -12px rgba(11,46,35,.18);
    --shadow-lg:0 2px 4px rgba(11,46,35,.08),0 22px 44px -16px rgba(11,46,35,.26);
    --space-section:88px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Inter,ui-sans-serif,system-ui,sans-serif;
    background:var(--paper);
    color:var(--ink);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em}
  p{margin:0}
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}
  button,input{font:inherit;color:inherit}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  .num{font-family:Inter,ui-sans-serif,system-ui,sans-serif;font-variant-numeric:tabular-nums}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:var(--card);
    border-bottom:1px solid var(--line);
    transition:box-shadow .28s ease,background .28s ease;
  }
  .site-header.is-scrolled{
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(12px);
    box-shadow:0 8px 26px -16px rgba(11,46,35,.42);
  }
  .brand-row{
    height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
    overflow:hidden;transition:height .3s ease,opacity .22s ease;
  }
  .site-header.is-scrolled .brand-row{height:0;opacity:0}
  .brand-lockup{display:flex;align-items:center;gap:10px;min-width:0}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;background:var(--brand-900);
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  }
  .brand-mark svg{width:19px;height:19px}
  .brand-name{
    font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--brand-900);
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .brand-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .mini-btn{
    height:34px;padding:0 14px;border-radius:999px;font-size:13px;font-weight:600;
    display:inline-flex;align-items:center;gap:6px;transition:all .2s ease;white-space:nowrap;
  }
  .mini-btn.ghost{border:1px solid var(--line);color:var(--brand-700);background:#fff}
  .mini-btn.ghost:hover{border-color:var(--brand-500);background:var(--paper);transform:translateY(-1px)}
  .mini-btn.solid{background:var(--amber-500);color:var(--ink);box-shadow:0 6px 18px -10px rgba(245,165,36,.9)}
  .mini-btn.solid:hover{filter:brightness(.94);transform:translateY(-1px)}
  .region-switch{
    font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:12px;
    display:inline-flex;align-items:center;gap:4px;
  }

  .channel-bar{
    height:48px;display:flex;align-items:center;gap:18px;
    transition:height .3s ease;
  }
  .site-header.is-scrolled .channel-bar{height:64px}
  .channel-nav{
    display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0;
    overflow-x:auto;scrollbar-width:none;
  }
  .channel-nav::-webkit-scrollbar{display:none}
  .channel{
    position:relative;padding:0 14px;height:48px;display:inline-flex;align-items:center;
    font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .channel:hover{color:var(--brand-700);background:var(--paper)}
  .channel::after{
    content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
    background:var(--lime-400);border-radius:2px;transform:scaleX(0);transform-origin:left;
    transition:transform .22s ease;
  }
  .channel.active{color:var(--brand-900)}
  .channel.active::after{transform:scaleX(1)}
  .channel.active:hover{background:transparent}
  .channel-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .hot-pills{display:flex;gap:8px;align-items:center;overflow-x:auto;scrollbar-width:none;max-width:330px}
  .hot-pills::-webkit-scrollbar{display:none}
  .hot-label{font-size:12px;color:var(--muted);white-space:nowrap}
  .pill-hot{
    font-size:12px;padding:5px 12px;border-radius:999px;background:var(--paper);
    color:var(--brand-700);border:1px solid var(--line);white-space:nowrap;transition:all .2s ease;
  }
  .pill-hot:hover{background:#fff;border-color:var(--lime-400);transform:translateY(-1px)}
  .search-toggle{
    width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
    display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;
  }
  .search-toggle:hover{border-color:var(--brand-500);background:var(--paper)}
  .search-toggle svg{width:17px;height:17px}
  .search-panel{
    display:none;padding:12px 0 16px;border-top:1px solid var(--line);
  }
  .search-panel.open{display:block}
  .search-box{
    display:flex;align-items:center;gap:10px;height:48px;border:1px solid var(--line);
    border-radius:12px;background:#fff;padding:0 14px;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .search-box:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(61,214,140,.18)}
  .search-box input{border:0;outline:0;background:transparent;flex:1;height:100%;font-size:15px}
  .search-box svg{width:18px;height:18px;flex:0 0 auto}
  .search-suggest{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}

  .burger{
    display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
    background:#fff;align-items:center;justify-content:center;cursor:pointer;
  }
  .burger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative}
  .burger span::before,.burger span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;
  }
  .burger span::before{top:-6px}
  .burger span::after{top:6px}

  .drawer-mask{
    position:fixed;inset:0;background:rgba(11,46,35,.45);opacity:0;visibility:hidden;
    transition:opacity .26s ease,visibility .26s;z-index:80;
  }
  .drawer-mask.open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;background:#fff;z-index:90;
    transform:translateX(102%);transition:transform .3s cubic-bezier(.22,.7,.3,1);
    padding:22px 20px;overflow-y:auto;box-shadow:-18px 0 40px -24px rgba(11,46,35,.5);
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
  .drawer-close{
    width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;
    display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--muted);
  }
  .drawer-title{font-size:12px;letter-spacing:.12em;color:var(--muted);margin:20px 0 10px;font-weight:700}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:13px 14px;border-radius:12px;color:var(--brand-900);font-weight:600;font-size:15px;
    border-left:3px solid transparent;transition:all .2s ease;
  }
  .drawer-link:hover,.drawer-link.active{background:var(--paper);border-left-color:var(--lime-400)}
  .drawer-cta{display:grid;gap:10px;margin-top:22px}

  /* ---------- 通用按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);font-weight:700;font-size:15px;
    padding:0 24px;height:48px;border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .btn svg{width:17px;height:17px}
  .btn-primary{background:var(--amber-500);color:var(--ink);box-shadow:0 10px 24px -14px rgba(245,165,36,1)}
  .btn-primary:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(245,165,36,1)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
  .btn-outline:hover{background:var(--paper);transform:translateY(-1px)}
  .btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
  .btn-lg{height:52px;font-size:16px}
  .btn-sm{height:44px;font-size:14px;padding:0 18px}
  .btn-block{width:100%}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
    padding:72px 0 64px;
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-2.webp");
    background-size:cover;background-position:center;opacity:.34;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 12px);
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2}
  .crumb{
    display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;
  }
  .crumb a:hover{color:var(--lime-400)}
  .hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.14em;
    color:var(--lime-400);text-transform:uppercase;margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:26px;height:2px;background:var(--lime-400);border-radius:2px}
  .hero h1{font-size:clamp(27px,3.4vw,40px);color:#fff;margin-bottom:18px}
  .hero h1 em{font-style:normal;color:var(--lime-400)}
  .hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:620px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-metrics{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
    margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);
  }
  .metric-num{font-size:24px;font-weight:800;color:var(--lime-400);line-height:1.2}
  .metric-label{font-size:13px;color:rgba(255,255,255,.68);margin-top:4px}
  .hero-visual{
    position:relative;border-radius:var(--radius-card);overflow:hidden;
    border:1px solid rgba(255,255,255,.2);
    box-shadow:0 28px 60px -30px rgba(0,0,0,.7);
    aspect-ratio:16/10;background:rgba(255,255,255,.05);
  }
  .hero-visual img{width:100%;height:100%;object-fit:cover}
  .version-float{
    position:absolute;left:16px;bottom:16px;right:16px;
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    background:rgba(255,255,255,.94);border-radius:14px;padding:12px 16px;
    box-shadow:0 16px 32px -18px rgba(0,0,0,.6);
  }
  .version-float .vf-title{font-size:13px;font-weight:700;color:var(--brand-900)}
  .version-float .vf-sub{font-size:12px;color:var(--muted);margin-top:2px}

  /* ---------- 板块通用 ---------- */
  .section{padding:var(--space-section) 0}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{max-width:720px;margin-bottom:40px}
  .section-tag{
    display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;
    color:var(--brand-500);background:rgba(30,122,87,.08);border-radius:999px;padding:5px 14px;margin-bottom:14px;
  }
  .section-head h2{font-size:clamp(22px,2.4vw,30px);color:var(--brand-900)}
  .section-head p{margin-top:12px;color:var(--muted);font-size:15px}

  /* ---------- 平台筛选 ---------- */
  .filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
  .filter-pill{
    height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
    font-size:14px;font-weight:600;color:var(--muted);cursor:pointer;transition:all .2s ease;
  }
  .filter-pill:hover{border-color:var(--brand-500);color:var(--brand-700)}
  .filter-pill.active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;box-shadow:0 10px 22px -14px rgba(18,80,60,.9)}

  .platform-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    overflow:hidden;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#d5dad2}
  .platform-card{padding:24px;display:flex;flex-direction:column;gap:16px}
  .pc-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
  .pc-icon{
    width:46px;height:46px;border-radius:14px;background:rgba(61,214,140,.14);
    display:flex;align-items:center;justify-content:center;color:var(--brand-700);
  }
  .pc-icon svg{width:22px;height:22px}
  .badge-version{
    font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;
    background:rgba(61,214,140,.16);color:var(--brand-900);white-space:nowrap;
  }
  .pc-title{font-size:17px;font-weight:800;color:var(--brand-900)}
  .pc-desc{font-size:14px;color:var(--muted);line-height:1.75;min-height:74px}
  .pc-meta{
    display:flex;justify-content:space-between;font-size:13px;color:var(--muted);
    padding:12px 0;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);
  }
  .pc-meta b{color:var(--brand-900);font-weight:700}
  .pc-actions{display:flex;gap:10px;margin-top:auto}
  .platform-card[hidden]{display:none}

  /* ---------- 规格清单 ---------- */
  .spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .spec-card{padding:26px}
  .spec-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
  .spec-head h3{font-size:16px;color:var(--brand-900)}
  .spec-num{
    font-size:12px;font-weight:800;color:var(--brand-700);background:var(--paper);
    border-radius:8px;padding:3px 9px;letter-spacing:.04em;
  }
  .spec-list li{
    display:flex;align-items:baseline;justify-content:space-between;gap:16px;
    padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;
  }
  .spec-list li:last-child{border-bottom:0}
  .spec-key{color:var(--muted);flex:0 0 auto}
  .spec-val{color:var(--brand-900);font-weight:600;text-align:right}
  .spec-note{
    margin-top:20px;display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);
    background:var(--paper);border-radius:12px;padding:14px 16px;
  }
  .spec-note svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;color:var(--brand-500)}

  /* ---------- 安装步骤 ---------- */
  .steps{position:relative;margin-top:8px}
  .steps::before{
    content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
    background:linear-gradient(180deg,var(--lime-400),rgba(61,214,140,.15));
  }
  .step{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:20px;padding:14px 0}
  .step-dot{
    width:48px;height:48px;border-radius:14px;background:#fff;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;color:var(--brand-700);
    position:relative;z-index:2;box-shadow:var(--shadow-sm);
  }
  .step-body{padding-top:4px}
  .step-body h3{font-size:16px;color:var(--brand-900);margin-bottom:6px}
  .step-body p{font-size:14px;color:var(--muted)}

  /* ---------- 校验说明 ---------- */
  .check-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .check-card{padding:26px;display:flex;flex-direction:column;gap:12px}
  .check-card h3{font-size:16px;color:var(--brand-900)}
  .check-card p{font-size:14px;color:var(--muted)}
  .check-index{font-size:13px;font-weight:800;color:var(--lime-400);letter-spacing:.08em}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:44px;align-items:start}
  .faq-side h2{font-size:clamp(22px,2.4vw,28px);color:var(--brand-900)}
  .faq-side p{margin-top:14px;color:var(--muted);font-size:15px}
  .faq-side .btn{margin-top:24px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:#d5dad2}
  .faq-item.open{box-shadow:var(--shadow-sm);border-color:#d5dad2}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:15px;font-weight:700;color:var(--brand-900);transition:background .2s ease;
  }
  .faq-q:hover{background:var(--paper)}
  .faq-q .chev{
    width:24px;height:24px;flex:0 0 auto;border-radius:50%;background:var(--paper);
    display:flex;align-items:center;justify-content:center;transition:transform .25s ease,background .25s ease;
  }
  .faq-q .chev svg{width:12px;height:12px;color:var(--brand-700)}
  .faq-item.open .chev{transform:rotate(180deg);background:rgba(61,214,140,.22)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
  .faq-a p{padding:0 20px 20px;font-size:14px;color:var(--muted);line-height:1.85}

  /* ---------- CTA 带 ---------- */
  .cta-band{
    position:relative;background:var(--brand-900);color:#fff;border-radius:24px;overflow:hidden;
    padding:56px 48px;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px);
  }
  .cta-band-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
  .cta-band h2{font-size:clamp(21px,2.4vw,28px);color:#fff}
  .cta-band p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15px;max-width:620px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
  .cta-dots{position:absolute;right:32px;top:28px;display:grid;grid-template-columns:repeat(2,5px);gap:7px;opacity:.8}
  .cta-dots i{width:5px;height:5px;border-radius:50%;background:var(--lime-400);display:block}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:var(--space-section);
    padding:64px 0 28px;
  }
  .footer-grid{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.6fr));gap:40px}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .footer-brand .brand-mark{background:rgba(255,255,255,.08)}
  .brand-text{font-weight:800;font-size:16px;color:#fff}
  .footer-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
  .footer-title{font-size:13px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.06em}
  .footer-links{display:grid;gap:11px}
  .footer-links a{font-size:13.5px;color:rgba(255,255,255,.68);transition:color .2s ease,transform .2s ease;width:fit-content}
  .footer-links a:hover{color:var(--lime-400);transform:translateX(2px)}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.55);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .hot-pills{max-width:220px}
  }
  @media (max-width:1024px){
    :root{--space-section:64px}
    .channel-nav,.channel-tools .search-toggle,.hot-pills{display:none}
    .burger{display:inline-flex}
    .channel-bar{height:56px}
    .site-header.is-scrolled .channel-bar{height:56px}
    .hero-grid{grid-template-columns:1fr;gap:34px}
    .platform-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .check-grid{grid-template-columns:1fr}
    .spec-grid{grid-template-columns:1fr}
    .faq-wrap{grid-template-columns:1fr;gap:28px}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  }
  @media (max-width:768px){
    :root{--space-section:56px}
    .brand-actions .region-switch{display:none}
    .hero{padding:52px 0 46px}
    .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .cta-band{padding:40px 26px}
    .cta-band-inner{flex-direction:column;align-items:flex-start}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:8px}
  }
  @media (max-width:520px){
    .platform-grid{grid-template-columns:1fr}
    .mini-btn.ghost{display:none}
    .hero-cta .btn{width:100%}
    .pc-actions{flex-direction:column}
    .pc-actions .btn{width:100%}
    .brand-name{font-size:15px}
  }

/* roulang page: category4 */
:root{
    --brand-900:#0B2E23;
    --brand-700:#12503C;
    --brand-500:#1E7A57;
    --lime-400:#3DD68C;
    --amber-500:#F5A524;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --ink:#12181A;
    --muted:#5B6A66;
    --line:#E2E4DE;
    --radius-card:18px;
    --radius-btn:12px;
    --radius-badge:999px;
    --shadow-1:0 1px 2px rgba(11,46,35,.06),0 12px 32px -12px rgba(11,46,35,.18);
    --shadow-2:0 2px 6px rgba(11,46,35,.08),0 20px 46px -16px rgba(11,46,35,.28);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Inter,ui-sans-serif,system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:800;color:var(--brand-900);}
  p{margin:0;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px;}
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
  .skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-900);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 12px 0;}
  .skip-link:focus{left:0;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .btn:active{transform:translateY(0);}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
  .btn-lg{height:52px;padding:0 28px;}
  .btn-amber{background:var(--amber-500);color:var(--ink);box-shadow:var(--shadow-1);}
  .btn-amber:hover{background:#e2951a;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-brand{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-1);}
  .btn-brand:hover{background:#0f4534;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-outline{background:#fff;color:var(--brand-700);border-color:#c8d6cf;}
  .btn-outline:hover{border-color:var(--brand-500);background:#f2f8f5;transform:translateY(-1px);}
  .btn-ghost-light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.32);}
  .btn-ghost-light:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}
  .btn-white{background:#fff;color:var(--brand-900);}
  .btn-white:hover{background:#eef4f1;transform:translateY(-1px);}

  /* ---------- 页头 ---------- */
  .site-header{position:sticky;top:0;z-index:80;background:var(--card);box-shadow:0 1px 0 rgba(11,46,35,.06);}
  .brand-bar{background:#fff;border-bottom:1px solid var(--line);transition:padding .25s ease;}
  .brand-inner{display:flex;align-items:center;gap:16px;min-height:60px;padding-top:6px;padding-bottom:6px;}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,var(--brand-900),var(--brand-500));display:grid;place-items:center;flex:none;box-shadow:0 6px 16px -8px rgba(11,46,35,.7);}
  .brand-mark svg{width:21px;height:21px;}
  .brand-name{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:-.02em;}
  .brand-tag{font-size:11.5px;color:var(--muted);border-left:1px solid var(--line);padding-left:10px;line-height:1.2;display:none;}
  .brand-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:11px;background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;}
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
  .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  .channel-bar{background:#fff;}
  .channel-inner{display:flex;align-items:center;gap:18px;min-height:50px;}
  .channel-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;flex:1 1 auto;}
  .channel-nav::-webkit-scrollbar{display:none;}
  .channel{position:relative;padding:8px 14px;border-radius:var(--radius-badge);font-size:14.5px;font-weight:600;color:var(--muted);white-space:nowrap;transition:color .18s ease,background-color .18s ease;}
  .channel:hover{color:var(--brand-700);background:var(--paper);}
  .channel.active{color:var(--brand-900);}
  .channel.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--lime-400);}
  .channel-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .tool-btn{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:#fff;color:var(--brand-700);display:grid;place-items:center;cursor:pointer;transition:background-color .18s ease,border-color .18s ease;}
  .tool-btn:hover{background:var(--paper);border-color:#c8d6cf;}
  .nav-search{width:0;overflow:hidden;transition:width .28s ease;}
  .nav-search.open{width:210px;}
  .nav-search input{width:100%;height:38px;border-radius:11px;border:1px solid var(--line);background:var(--paper);padding:0 14px;font-size:14px;color:var(--ink);outline:none;}
  .nav-search input:focus{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(30,122,87,.12);}
  .hot-tags{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;max-width:320px;}
  .hot-tags::-webkit-scrollbar{display:none;}
  .hot-tag{font-size:12.5px;color:var(--brand-700);background:rgba(61,214,140,.13);border:1px solid rgba(61,214,140,.32);border-radius:var(--radius-badge);padding:4px 11px;white-space:nowrap;transition:background-color .18s ease,transform .18s ease;}
  .hot-tag:hover{background:rgba(61,214,140,.26);transform:translateY(-1px);}
  .site-header.compact .brand-tag{display:none;}
  .site-header.compact .brand-inner{min-height:56px;}
  .site-header.compact{box-shadow:0 6px 24px -14px rgba(11,46,35,.45),0 1px 0 var(--line);background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(6px);}

  /* ---------- 移动抽屉 ---------- */
  .drawer-backdrop{position:fixed;inset:0;background:rgba(11,46,35,.45);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:90;}
  .drawer-backdrop.open{opacity:1;visibility:visible;}
  .drawer{position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;background:#fff;z-index:100;transform:translateX(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);overflow-y:auto;padding:22px 20px 32px;box-shadow:-16px 0 40px -20px rgba(11,46,35,.6);}
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
  .drawer-close{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:#fff;font-size:18px;color:var(--brand-900);cursor:pointer;}
  .drawer-title{font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:700;margin:22px 0 10px;}
  .drawer-links{display:flex;flex-direction:column;gap:2px;}
  .drawer-links a{padding:12px 14px;border-radius:12px;font-weight:600;color:var(--ink);transition:background-color .18s ease,color .18s ease;}
  .drawer-links a:hover,.drawer-links a.active{background:var(--paper);color:var(--brand-700);}
  .drawer-cta{display:grid;gap:10px;margin-top:22px;}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0B2E23 0%,#12503C 58%,#1E7A57 100%);color:#fff;}
  .hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;opacity:.15;}
  .hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);opacity:.7;}
  .hero-inner{position:relative;z-index:2;padding:44px 20px 68px;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:22px;}
  .breadcrumb a:hover{color:var(--lime-400);}
  .hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.06em;color:#0B2E23;background:var(--lime-400);border-radius:var(--radius-badge);padding:5px 14px;}
  .hero h1{color:#fff;font-size:clamp(26px,3.4vw,40px);max-width:900px;margin:18px 0 16px;}
  .hero-lead{max-width:720px;color:rgba(255,255,255,.82);font-size:16.5px;}
  .hero-search{margin-top:28px;background:#fff;border-radius:16px;padding:10px;display:flex;align-items:center;gap:10px;max-width:720px;box-shadow:0 20px 44px -20px rgba(0,0,0,.55);}
  .hero-search .fld{display:flex;align-items:center;gap:10px;flex:1 1 auto;padding-left:8px;}
  .hero-search svg{flex:none;color:var(--muted);}
  .hero-search input{border:0;outline:none;width:100%;height:44px;font-size:15.5px;color:var(--ink);background:transparent;}
  .hero-hot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px;font-size:13.5px;color:rgba(255,255,255,.66);}
  .hero-hot button{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);color:#fff;border-radius:var(--radius-badge);padding:5px 13px;font-size:13px;cursor:pointer;transition:background-color .18s ease,transform .18s ease;}
  .hero-hot button:hover{background:rgba(61,214,140,.28);transform:translateY(-1px);}
  .hero-stats{display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);}
  .hero-stat b{display:block;font-size:26px;font-weight:800;color:var(--lime-400);line-height:1.1;letter-spacing:-.02em;}
  .hero-stat span{font-size:13px;color:rgba(255,255,255,.7);}

  /* ---------- 通用板块 ---------- */
  .section{padding:76px 0;}
  .section-tight{padding:56px 0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
  .eyebrow{font-size:12.5px;font-weight:800;letter-spacing:.16em;color:var(--brand-500);margin-bottom:10px;}
  .section-head h2{font-size:clamp(22px,2.5vw,30px);}
  .section-sub{color:var(--muted);font-size:15px;max-width:460px;}

  /* ---------- 三步自查 ---------- */
  .steps{display:grid;gap:14px;}
  .step-row{display:grid;grid-template-columns:96px 1fr;gap:22px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 26px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
  .step-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(61,214,140,.5);}
  .step-num{font-size:30px;font-weight:800;color:var(--brand-500);letter-spacing:-.03em;line-height:1;font-family:Inter,ui-sans-serif,sans-serif;}
  .step-num small{display:block;font-size:11.5px;letter-spacing:.14em;color:var(--muted);font-weight:700;margin-top:6px;}
  .step-row h3{font-size:17px;margin-bottom:6px;}
  .step-row p{color:var(--muted);font-size:14.5px;}

  /* ---------- 筛选与 FAQ ---------- */
  .filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
  .filter-pill{height:40px;padding:0 18px;border-radius:var(--radius-badge);border:1px solid var(--line);background:#fff;color:var(--brand-700);font-size:14px;font-weight:600;cursor:pointer;transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;}
  .filter-pill:hover{border-color:var(--brand-500);transform:translateY(-1px);}
  .filter-pill.active{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}
  .filter-pill.active:hover{background:var(--brand-700);}
  .faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start;}
  .faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;}
  .faq-item:hover{box-shadow:var(--shadow-2);border-color:#cfdcd5;}
  .faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:12px;padding:20px 22px;font-size:16px;font-weight:700;color:var(--brand-900);line-height:1.5;transition:background-color .18s ease;}
  .faq-item summary:hover{background:#f3f6f3;}
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-arrow{margin-left:auto;flex:none;width:24px;height:24px;border-radius:50%;background:var(--paper);display:grid;place-items:center;transition:transform .25s ease,background-color .25s ease;color:var(--brand-700);}
  .faq-item[open] .faq-arrow{transform:rotate(180deg);background:rgba(61,214,140,.2);}
  .faq-answer{padding:0 22px 22px;color:var(--muted);font-size:14.8px;line-height:1.85;}
  .faq-answer::before{content:"";display:block;height:1px;background:var(--line);margin:0 0 14px;}
  .faq-cat{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.08em;color:var(--brand-700);background:var(--paper);border-radius:var(--radius-badge);padding:3px 10px;margin-bottom:10px;}
  .faq-empty{text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);padding:44px 20px;font-size:15px;}

  /* ---------- 联系入口 ---------- */
  .contact-card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-1);display:grid;grid-template-columns:1.15fr .85fr;gap:0;overflow:hidden;}
  .contact-text{padding:42px 44px;}
  .contact-text h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:14px;}
  .contact-text p{color:var(--muted);}
  .check-list{margin:22px 0 26px;display:grid;gap:12px;}
  .check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.8px;color:var(--ink);}
  .check-list li::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--lime-400);margin-top:8px;}
  .contact-actions{display:flex;gap:12px;flex-wrap:wrap;}
  .contact-media{position:relative;min-height:280px;background:var(--paper);}
  .contact-media img{width:100%;height:100%;object-fit:cover;}
  .contact-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,46,35,.06),transparent 55%);}

  /* ---------- 底部 CTA ---------- */
  .cta-band{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
  .cta-band::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.045) 0 2px,transparent 2px 14px);}
  .cta-inner{position:relative;z-index:2;padding:66px 20px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
  .cta-inner h2{color:#fff;font-size:clamp(21px,2.6vw,30px);margin-bottom:12px;}
  .cta-inner p{color:rgba(255,255,255,.76);max-width:620px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:62px 0 26px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{background:rgba(61,214,140,.14);box-shadow:none;}
  .footer-brand .brand-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em;}
  .footer-desc{font-size:14px;color:rgba(255,255,255,.66);max-width:340px;}
  .footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease,padding-left .18s ease;}
  .footer-links a:hover{color:var(--lime-400);padding-left:4px;}
  .footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.13);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .footer-grid{grid-template-columns:1fr 1fr;}
    .contact-card{grid-template-columns:1fr;}
    .contact-media{min-height:220px;order:-1;}
    .contact-text{padding:34px 28px;}
  }
  @media (max-width:900px){
    .channel-bar{display:none;}
    .menu-toggle{display:flex;}
    .brand-actions .btn-sm{display:none;}
    .section{padding:56px 0;}
    .section-tight{padding:44px 0;}
    .hero-inner{padding:32px 20px 52px;}
  }
  @media (max-width:768px){
    .faq-grid{grid-template-columns:1fr;}
    .step-row{grid-template-columns:64px 1fr;gap:16px;padding:18px 20px;}
    .step-num{font-size:24px;}
    .cta-inner{padding:52px 20px;}
    .hero-stats{gap:14px 26px;}
  }
  @media (max-width:520px){
    body{font-size:15.5px;}
    .brand-name{font-size:16px;}
    .hero-search{flex-direction:column;align-items:stretch;padding:12px;}
    .hero-search .btn{width:100%;}
    .hero-search .fld{padding-left:4px;}
    .brand-tag{display:none;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .contact-actions .btn,.cta-actions .btn{width:100%;}
    .hero h1{font-size:24px;}
  }