/* roulang page: index */
:root{
  --brand:#0F5C4C;
  --brand-700:#0A4034;
  --brand-050:#E7F0EC;
  --accent:#F2653F;
  --accent-050:#FDECE6;
  --paper:#FBFAF7;
  --paper-2:#F2F0EA;
  --line:#E4E1D8;
  --ink-900:#121614;
  --ink-600:#4A5450;
  --ink-400:#8A938E;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,22,20,.04),0 8px 24px -12px rgba(18,22,20,.10);
  --sh-2:0 14px 34px -14px rgba(15,92,76,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;
  color:var(--ink-600);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto;border-style:none}
a{color:inherit;text-decoration:none;background-color:transparent}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{color:var(--ink-900);font-weight:800}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.24;letter-spacing:-.01em}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:700}
h4{font-size:17px;line-height:1.5;font-weight:600}
strong{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-050);color:var(--brand-700)}

/* ===== 通用容器 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:28px;padding-right:28px}
.section{padding-top:96px;padding-bottom:96px}
.section-tight{padding-top:76px;padding-bottom:76px}
.section-alt{background:var(--paper-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head .sec-desc{margin-top:10px;font-size:15px;color:var(--ink-400);max-width:640px}
.text-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t) var(--ease);
}
.text-link:hover::after{transform:scaleX(1)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color var(--t) var(--ease),color var(--t) var(--ease),
             border-color var(--t) var(--ease),transform var(--t) var(--ease),
             box-shadow var(--t) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#D9532F;transform:translateY(-2px);box-shadow:0 14px 30px -14px rgba(242,101,63,.55)}
.btn-accent .arrow{transition:transform var(--t) var(--ease)}
.btn-accent:hover .arrow{transform:translateX(3px)}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);
  font-size:13px;font-weight:500;line-height:1.7;letter-spacing:.02em;
}
.badge-accent{background:var(--accent-050);color:#B33F1E}

/* ===== 顶部细条 ===== */
.announce{background:var(--brand-050);color:var(--brand-700)}
.announce-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:36px;font-size:13px;letter-spacing:.02em}
.announce a{font-weight:600;border-bottom:1px solid rgba(15,92,76,.35);transition:border-color var(--t) var(--ease)}
.announce a:hover{border-bottom-color:var(--brand)}

/* ===== 主导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  position:relative;width:32px;height:32px;border-radius:10px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 32px;
}
.logo-mark::before{content:"";width:12px;height:12px;border-radius:3px;background:#fff}
.logo-mark::after{
  content:"";position:absolute;right:-3px;bottom:-3px;width:11px;height:11px;border-radius:50%;
  background:var(--accent);border:2px solid #fff;
}
.logo-text{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.nav-pills{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.pill{
  display:inline-block;padding:8px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-600);white-space:nowrap;
  transition:background-color var(--t) var(--ease),color var(--t) var(--ease);
}
.pill:hover{background:var(--paper-2);color:var(--ink-900)}
.pill.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform var(--t) var(--ease),opacity var(--t) var(--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)}

/* ===== 移动抽屉 ===== */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(360px,86vw);background:#fff;z-index:80;
  transform:translateX(100%);transition:transform 240ms var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-16px 0 40px -20px rgba(18,22,20,.35);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{padding:12px 14px;border-radius:12px;font-size:16px;font-weight:500;color:var(--ink-600)}
.drawer-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-400);line-height:1.9}
.scrim{position:fixed;inset:0;background:rgba(18,22,20,.42);z-index:70;opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms var(--ease)}
.scrim.is-open{opacity:1;visibility:visible}

/* ===== Hero ===== */
.hero{position:relative;background:var(--brand-700);color:#fff;overflow:hidden;padding:88px 0 104px}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.2;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.hero h1{color:#fff}
.hero .badge{background:rgba(255,255,255,.14);color:#DCE9E4;margin-bottom:20px}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:520px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.hero .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:24px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.hero-stats span{font-size:14px;color:rgba(255,255,255,.62)}
.hero-cards{display:flex;gap:18px;align-items:flex-start;justify-content:flex-end}

/* ===== 竖屏卡 ===== */
.vcard{
  position:relative;width:206px;flex:0 0 206px;aspect-ratio:9/16;
  border-radius:var(--r-img);overflow:hidden;background:#0A4034;box-shadow:0 20px 44px -20px rgba(0,0,0,.6);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.vcard img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.vcard::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,64,52,.06) 34%,rgba(10,64,52,.86) 100%);
}
.vcard:hover{transform:translateY(-4px)}
.vcard:hover img{transform:scale(1.03)}
.vcard-time{
  position:absolute;right:10px;bottom:10px;z-index:2;
  padding:2px 8px;border-radius:8px;background:rgba(18,22,20,.62);
  color:#fff;font-size:12px;font-variant-numeric:tabular-nums;
}
.vcard-play{
  position:absolute;left:50%;top:44%;z-index:2;width:46px;height:46px;margin:-23px 0 0 -23px;
  border:2px solid rgba(255,255,255,.9);border-radius:50%;opacity:0;transform:scale(.86);
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);
}
.vcard-play::after{
  content:"";position:absolute;left:16px;top:12px;
  border-left:12px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent;
}
.vcard:hover .vcard-play{opacity:1;transform:scale(1)}
.vcard-info{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:14px 14px 34px;color:#fff}
.vcard-info h3{color:#fff;font-size:15px;line-height:1.45;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:6px}
.vcard-hot{font-size:12px;color:rgba(255,255,255,.7);font-variant-numeric:tabular-nums}
.hero-cards .vcard:nth-child(1){transform:translateY(26px)}
.hero-cards .vcard:nth-child(2){transform:translateY(-14px)}
.hero-cards .vcard:nth-child(3){transform:translateY(44px) scale(.94)}
.hero-cards .vcard:nth-child(1):hover{transform:translateY(22px)}
.hero-cards .vcard:nth-child(2):hover{transform:translateY(-18px)}
.hero-cards .vcard:nth-child(3):hover{transform:translateY(40px) scale(.94)}

/* ===== 爆款片段横滚 ===== */
.reel-wrap{position:relative}
.reel{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;scrollbar-color:var(--line) transparent;
}
.reel::-webkit-scrollbar{height:6px}
.reel::-webkit-scrollbar-track{background:transparent}
.reel::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.reel .vcard{scroll-snap-align:start}
.reel .vcard::after{background:linear-gradient(180deg,rgba(18,22,20,.04) 30%,rgba(18,22,20,.82) 100%)}

/* ===== 种草清单 ===== */
.seed-group + .seed-group{margin-top:44px}
.seed-list{border-top:1px solid var(--line)}
.seed-row{
  display:flex;align-items:center;gap:24px;min-height:96px;padding:14px 12px;
  border-bottom:1px solid var(--line);
  transition:background-color var(--t) var(--ease),transform var(--t) var(--ease);
}
.seed-row:hover{background:var(--paper-2);transform:translateX(6px)}
.seed-num{
  flex:0 0 52px;width:52px;height:52px;border-radius:14px;background:var(--brand-050);
  color:var(--brand-700);font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.seed-body{flex:1 1 auto;min-width:0}
.seed-body h3{font-size:18px;font-weight:700}
.seed-body p{margin-top:6px;font-size:14px;color:var(--ink-400);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.seed-thumb{flex:0 0 120px;width:120px;aspect-ratio:16/9;border-radius:10px;object-fit:cover;border:1px solid var(--line)}

/* ===== 口碑 ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.quote-mark{
  font-size:52px;line-height:1;font-weight:800;color:var(--brand-050);
  letter-spacing:-.04em;margin-bottom:6px;
}
.quote-card p{font-size:15px;color:var(--ink-600);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{
  width:38px;height:38px;border-radius:50%;background:var(--brand-050);flex:0 0 38px;
  border:1px solid var(--line);position:relative;overflow:hidden;
}
.avatar::before{content:"";position:absolute;left:50%;top:9px;width:12px;height:12px;margin-left:-6px;border-radius:50%;background:rgba(15,92,76,.34)}
.avatar::after{content:"";position:absolute;left:50%;bottom:-6px;width:26px;height:16px;margin-left:-13px;border-radius:14px 14px 0 0;background:rgba(15,92,76,.24)}
.quote-meta{display:flex;flex-direction:column;gap:2px;min-width:0}
.quote-meta strong{font-size:14px;color:var(--ink-900);font-weight:600}
.quote-meta span{font-size:13px;color:var(--ink-400)}
.stars{display:flex;gap:2px;margin-left:auto;color:var(--accent)}
.stars svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linejoin:round}

/* ===== CTA 通栏 ===== */
.cta-band{
  position:relative;background:var(--brand-700);color:#fff;border-radius:var(--r-card);
  overflow:hidden;padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.16}
.cta-band-content{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,27px)}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.76);max-width:620px}
.cta-band .btn{position:relative;z-index:1;flex:0 0 auto}

/* ===== 最新信息 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;height:100%;
  box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.news-body h3{font-size:17px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{transition:color var(--t) var(--ease)}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{font-size:14px;color:var(--ink-400);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.news-date{font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  background:#fff;color:var(--ink-400);font-size:14px;text-align:center;padding:24px;
}

/* ===== FAQ ===== */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:16px 4px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-900);
  transition:color var(--t) var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform var(--t) var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;background:var(--paper-2);transition:max-height 260ms var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:20px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-600)}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-700);color:rgba(255,255,255,.78);margin-top:0;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-mark{background:#fff}
.footer-brand .logo-mark::before{background:var(--brand-700)}
.footer-brand .logo-mark::after{border-color:var(--brand-700)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color var(--t) var(--ease)}
.footer-col a:hover{color:#fff}
.footer-col li{font-size:14px;color:rgba(255,255,255,.7);font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);letter-spacing:.02em;
}

/* ===== 进入视口动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .nav-pills{display:none}
  .menu-toggle{display:flex}
  .header-inner{min-height:60px}
  .hero{padding:64px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-cards{justify-content:flex-start;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
  .hero-cards .vcard{scroll-snap-align:start;transform:none !important}
  .quote-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding-top:72px;padding-bottom:72px}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  .announce{display:none}
  .hero-stats{gap:24px;margin-top:32px}
  .hero-stats strong{font-size:20px}
  .quote-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px}
  .cta-band .btn{width:100%}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .seed-row{gap:16px}
  .seed-num{flex:0 0 44px;width:44px;height:44px;font-size:18px;border-radius:12px}
  .seed-thumb{flex:0 0 84px;width:84px}
  .seed-body p{white-space:normal}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .section{padding-top:56px;padding-bottom:56px}
  .section-tight{padding-top:48px;padding-bottom:48px}
  .vcard{width:180px;flex:0 0 180px}
  .faq-a p{font-size:15px;padding:18px}
}
@media (max-width:520px){
  body{font-size:15.5px;line-height:1.9}
  .logo-text{font-size:16px}
  .hero-sub{font-size:15.5px}
  .hero-cards .vcard{width:160px;flex:0 0 160px}
}

/* roulang page: article */
:root{
  --brand:#0F5C4C;
  --brand-700:#0A4034;
  --brand-050:#E7F0EC;
  --accent:#F2653F;
  --accent-050:#FDECE6;
  --paper:#FBFAF7;
  --paper-2:#F2F0EA;
  --line:#E4E1D8;
  --ink-900:#121614;
  --ink-600:#4A5450;
  --ink-400:#8A938E;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,22,20,.04), 0 8px 24px -12px rgba(18,22,20,.10);
  --sh-2:0 14px 34px -14px rgba(15,92,76,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --sec-pc:96px;
  --sec-mb:60px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:inherit;
  color:var(--ink-900);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.24;font-weight:800;}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--dur) var(--ease);}
img{max-width:100%;display:block;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.num,.tabular{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 28px;}
.button,.button.primary,.button.secondary{
  background-color:var(--brand);
  color:#fff;
  border-radius:var(--r-pill);
  font-family:inherit;
}
.button:hover,.button:focus{background-color:var(--brand-700);}
/* 顶部细条 */
.top-strip{background:var(--brand-050);color:var(--brand-700);font-size:13px;letter-spacing:.02em;}
.top-strip-inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px;}
.top-strip a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.top-strip a:hover{color:var(--brand);}
/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:70;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);}
.logo-mark{width:26px;height:26px;border-radius:8px;background:var(--brand);position:relative;flex:none;}
.logo-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:var(--paper);}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;}
.nav-pills{display:flex;align-items:center;gap:4px;}
.pill{
  display:inline-block;padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-600);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.pill:hover{background:var(--paper-2);color:var(--ink-900);}
.pill.active{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn .arrow{transition:transform var(--dur) var(--ease);}
.btn:hover .arrow{transform:translateX(3px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-700);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-700);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#D9532F;}
.btn-sm{height:38px;padding:0 20px;font-size:14px;}
.link-btn{
  display:inline-block;font-size:15px;font-weight:600;color:var(--brand-700);
  border-bottom:1px solid var(--brand-050);padding-bottom:2px;
  transition:border-color var(--dur) var(--ease);
}
.link-btn:hover{border-bottom-color:var(--brand);}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.hamburger span{display:block;width:18px;height:1.5px;background:var(--ink-900);}
/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:120;
  background:#fff;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 220ms var(--ease);
  display:flex;flex-direction:column;padding:20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;font-size:20px;line-height:1;color:var(--ink-900);}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;}
.drawer-nav a{padding:14px 6px;font-size:16px;color:var(--ink-900);border-bottom:1px solid var(--line);}
.drawer-nav a:hover{color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}
.drawer-foot p{margin-top:12px;font-size:13px;color:var(--ink-400);}
.drawer-mask{position:fixed;inset:0;background:rgba(18,22,20,.42);z-index:110;}
body.drawer-open{overflow:hidden;}
/* 阅读进度 */
.read-progress{position:fixed;top:0;left:0;width:100%;height:2px;z-index:90;background:transparent;}
.read-progress i{display:block;height:100%;width:100%;background:var(--accent);transform:scaleX(0);transform-origin:0 50%;}
/* 面包屑 */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:26px 0 0;font-size:14px;color:var(--ink-400);
}
.breadcrumb a{color:var(--ink-400);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-900);}
/* 文章头 */
.article-head{max-width:760px;margin:0 auto;padding:34px 0 0;}
.badge{
  display:inline-block;padding:5px 14px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);
  font-size:13px;font-weight:500;letter-spacing:.02em;
}
.article-head h1{margin:18px 0 0;}
.article-meta{
  display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:20px;padding-bottom:26px;
  border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-400);letter-spacing:.02em;
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--brand-050);display:inline-block;}
/* 正文 */
.article-body-wrap{max-width:760px;margin:0 auto;padding:34px 0 0;}
.article-lead{
  padding:20px 22px;background:var(--paper-2);border-left:3px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;font-size:15.5px;color:var(--ink-600);
}
.article-body{padding-top:32px;}
.article-body>*+*{margin-top:1.4em;}
.article-body p{font-size:16px;line-height:1.85;color:var(--ink-600);}
.article-body h2{
  font-size:clamp(22px,2.4vw,27px);margin-top:40px;padding-left:14px;
  border-left:4px solid var(--brand);line-height:1.4;
}
.article-body h3{font-size:20px;margin-top:28px;}
.article-body h4{font-size:17px;margin-top:24px;}
.article-body ul{padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-top:10px;font-size:16px;line-height:1.85;color:var(--ink-600);}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.66em;width:8px;height:8px;
  background:var(--brand-050);border:1px solid var(--brand);border-radius:2px;
}
.article-body ol{counter-reset:artlist;padding-left:0;}
.article-body ol li{position:relative;padding-left:30px;margin-top:10px;counter-increment:artlist;font-size:16px;line-height:1.85;color:var(--ink-600);}
.article-body ol li::before{
  content:counter(artlist);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:6px;background:var(--brand-050);color:var(--brand-700);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:32px 0;padding:20px;background:var(--paper-2);
  border-left:3px solid var(--accent);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink-900);font-size:15.5px;
}
.article-body blockquote p{color:var(--ink-900);}
.article-body img{border-radius:var(--r-img);margin:6px 0;box-shadow:var(--sh-1);}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-700);}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:10px;}
.article-body .table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-img);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;}
.article-body thead th{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body tbody tr:nth-child(even){background:var(--paper-2);}
/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  min-height:200px;padding:36px;margin:32px 0;
  border:1px dashed var(--line);border-radius:var(--r-card);text-align:center;
}
.empty-state p{font-size:14px;color:var(--ink-400);}
/* CTA 卡 */
.cta-section{padding:56px 0 0;}
.cta-card{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:34px 36px;border-radius:var(--r-card);background:var(--brand-050);
  border:1px solid #D8E5DF;
}
.cta-card h2{font-size:clamp(21px,2.3vw,26px);}
.cta-card p{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none;}
/* 相关推荐 */
.related{padding:var(--sec-mb) 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head .link-btn{white-space:nowrap;}
.rel-cell{margin-bottom:24px;}
.rel-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8E5DF;}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:24px;}
.rel-body h3{margin-top:14px;font-size:18px;line-height:1.45;}
.rel-body p{margin-top:10px;font-size:14.5px;color:var(--ink-600);}
/* 返回 */
.back-row{padding:32px 0 var(--sec-mb);}
/* 页脚 */
.site-footer{background:var(--brand-700);color:#F4F2EC;margin-top:20px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;
  padding:64px 0 40px;
}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-mark{background:#fff;}
.site-footer .logo-mark::after{background:var(--brand-700);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#CFDDD6;max-width:340px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.footer-col li,.footer-col a{font-size:14px;color:#CFDDD6;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:#B9CCC3;
}
/* 响应式 */
@media (max-width:1024px){
  .nav-pills{display:none;}
  .hamburger{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .top-strip{display:none;}
  .header-inner{min-height:60px;}
  .header-actions .btn-primary{display:none;}
  .article-body p,.article-body ul li,.article-body ol li{font-size:15.5px;line-height:1.9;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;justify-content:center;}
  .related,.back-row{padding-top:var(--sec-mb);}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .article-head{padding-top:26px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --brand:#0F5C4C;
  --brand-700:#0A4034;
  --brand-050:#E7F0EC;
  --accent:#F2653F;
  --accent-050:#FDECE6;
  --paper:#FBFAF7;
  --paper-2:#F2F0EA;
  --line:#E4E1D8;
  --ink-900:#121614;
  --ink-600:#4A5450;
  --ink-400:#8A938E;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,22,20,.04), 0 8px 24px -12px rgba(18,22,20,.10);
  --sh-2:0 14px 34px -14px rgba(15,92,76,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-600);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-700);}
button{font:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--ink-900);margin:0;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.24;font-weight:800;}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:700;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.4em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}
.grid-x{display:flex;flex-wrap:wrap;}
.cell{min-width:0;}
.num{font-variant-numeric:tabular-nums;}

/* 顶部细条 */
.announce-bar{background:var(--brand-050);font-size:13px;letter-spacing:.02em;}
.announce-inner{
  min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.announce-inner span{color:var(--brand-700);font-weight:500;}
.announce-inner a{color:var(--brand-700);font-weight:600;border-bottom:1px solid rgba(15,92,76,.35);}
.announce-inner a:hover{border-color:var(--brand-700);}

/* 头部 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.header-inner{
  min-height:72px;display:flex;align-items:center;gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;
  background:var(--brand);position:relative;display:inline-block;
}
.logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:50%;
  border:2px solid #fff;
}
.logo-mark::before{
  content:"";position:absolute;right:5px;top:5px;width:8px;height:8px;
  background:var(--accent);border-radius:2px;
}
.logo-text{font-size:19px;font-weight:800;color:var(--ink-900);letter-spacing:-.02em;}
.nav-pills{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap;}
.pill{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-600);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.pill:hover{background:var(--paper-2);color:var(--ink-900);}
.pill.active{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background-color .2s var(--ease),color .2s var(--ease),
    border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-700);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#D9532F;color:#fff;}
.btn-accent .arrow{transition:transform .2s var(--ease);}
.btn-accent:hover .arrow{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--brand);position:relative;padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.text-link:hover::after{transform:scaleX(1);}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:12px;padding:0;cursor:pointer;position:relative;
}
.menu-toggle span{
  position:absolute;left:11px;width:20px;height:2px;background:var(--ink-900);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.menu-toggle span:nth-child(1){top:15px;}
.menu-toggle span:nth-child(2){top:21px;}
.menu-toggle span:nth-child(3){top:27px;}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .26s var(--ease);
  padding:24px 22px;overflow-y:auto;box-shadow:-12px 0 40px -20px rgba(18,22,20,.35);
  display:flex;flex-direction:column;gap:22px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;
  font-size:20px;line-height:1;cursor:pointer;color:var(--ink-900);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:13px 14px;border-radius:12px;font-size:16px;color:var(--ink-900);font-weight:500;
}
.drawer-nav a:hover{background:var(--paper-2);}
.drawer-nav a.active{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.drawer-meta{font-size:13px;color:var(--ink-400);line-height:1.8;border-top:1px solid var(--line);padding-top:18px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,22,20,.42);z-index:85;opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* 面包屑 */
.breadcrumb{padding:20px 0 0;font-size:14px;color:var(--ink-400);}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--line);}
.breadcrumb a{color:var(--ink-400);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--ink-900);}

/* 板块通用 */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:52px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  padding:6px 14px;border-radius:var(--r-pill);background:var(--brand-050);
  color:var(--brand-700);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-600);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* Hero */
.cat-hero{
  padding:40px 0 84px;
}
.cat-hero-grid{
  display:flex;gap:56px;align-items:center;
}
.cat-hero-copy{flex:1 1 50%;min-width:0;}
.cat-hero-copy h1{margin-bottom:20px;}
.cat-hero-copy .lead{font-size:17px;line-height:1.8;color:var(--ink-600);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:44px;margin-top:44px;
  padding-top:28px;border-top:1px solid var(--line);
}
.hero-stats .stat strong{
  display:block;font-size:26px;font-weight:800;color:var(--ink-900);line-height:1.2;
}
.hero-stats .stat span{font-size:13px;color:var(--ink-400);letter-spacing:.02em;}
.cat-hero-media{
  flex:1 1 50%;min-width:0;position:relative;
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  background:var(--brand-700);
}
.cat-hero-media img{
  width:100%;height:340px;object-fit:cover;
  transition:transform .5s var(--ease);
}
.cat-hero-media:hover img{transform:scale(1.03);}
.cat-hero-media .media-tag{
  position:absolute;left:18px;bottom:18px;background:rgba(18,22,20,.62);
  color:#fff;font-size:13px;padding:7px 14px;border-radius:var(--r-pill);letter-spacing:.02em;
  backdrop-filter:blur(2px);
}

/* Zigzag */
.zigzag{display:flex;flex-direction:column;gap:88px;}
.zigzag-row{display:flex;gap:56px;align-items:center;}
.zigzag-row.reverse{flex-direction:row-reverse;}
.zigzag-media{
  flex:1 1 50%;min-width:0;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);background:var(--paper-2);
}
.zigzag-media img{width:100%;height:300px;object-fit:cover;transition:transform .5s var(--ease);}
.zigzag-media:hover img{transform:scale(1.03);}
.zigzag-body{flex:1 1 50%;min-width:0;}
.zigzag-body .index{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:11px;background:var(--brand-050);color:var(--brand-700);
  font-size:15px;font-weight:800;margin-bottom:18px;
}
.zigzag-body h3{margin-bottom:12px;font-size:22px;}
.zigzag-body p{max-width:520px;}
.zigzag-list{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.zigzag-list li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-600);
}
.zigzag-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;
  background:var(--brand);border-radius:2px;
}

/* 时间线 */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);padding-top:44px;
}
.step{
  position:relative;padding:0 28px 0 0;
}
.step::after{
  content:"";position:absolute;left:0;top:-45px;width:10px;height:10px;border-radius:50%;
  background:var(--brand);outline:3px solid var(--paper);
}
.step .step-num{
  display:block;font-size:32px;font-weight:800;color:var(--brand-050);line-height:1;
  margin-bottom:12px;letter-spacing:-.02em;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--ink-600);margin:0;}

/* 规格列表 */
.spec-list{border-top:1px solid var(--line);}
.spec-item{
  display:flex;gap:28px;align-items:flex-start;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.spec-item:hover{background:var(--paper-2);transform:translateX(6px);}
.spec-item .spec-key{
  flex:0 0 180px;font-size:15px;font-weight:700;color:var(--ink-900);
}
.spec-item .spec-val{font-size:15px;color:var(--ink-600);}

/* CTA */
.cta-band{
  background:var(--brand-700);color:#fff;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band .container{position:relative;z-index:1;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:64px 0;
}
.cta-inner h2{color:#fff;margin-bottom:12px;}
.cta-inner p{color:rgba(255,255,255,.82);max-width:560px;margin:0;font-size:16px;}
.cta-actions{flex:0 0 auto;}

/* 页脚 */
.site-footer{background:var(--brand-700);color:rgba(255,255,255,.86);padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;padding-bottom:56px;
}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{background:#fff;}
.footer-brand .logo-mark::after{border-color:var(--brand-700);}
.footer-brand .logo-mark::before{background:var(--accent);}
.footer-brand p{
  margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:340px;
}
.footer-col h4{
  color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col li{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* 动效 */
.js-on .reveal{opacity:0;transform:translateY(12px);}
.js-on .reveal.in{
  opacity:1;transform:none;
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .js-on .reveal{opacity:1 !important;transform:none !important;}
}

/* 响应式 */
@media (max-width:1023px){
  .nav-pills{display:none;}
  .menu-toggle{display:block;}
  .header-inner{min-height:60px;}
  .announce-bar{display:none;}
  .section{padding:72px 0;}
  .cat-hero{padding:24px 0 64px;}
  .cat-hero-grid{flex-direction:column;gap:36px;align-items:stretch;}
  .cat-hero-media img{height:280px;}
  .zigzag{gap:64px;}
  .zigzag-row,.zigzag-row.reverse{flex-direction:column;gap:28px;align-items:stretch;}
  .steps{grid-template-columns:1fr 1fr;gap:36px 0;padding-top:36px;}
  .step:nth-child(odd){padding-right:24px;}
  .step::after{top:-37px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;padding:56px 0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  body{font-size:15.5px;line-height:1.9;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .hero-stats{gap:32px;margin-top:34px;}
  .hero-stats .stat strong{font-size:22px;}
  .btn{width:auto;height:44px;padding:0 22px;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;}
  .cat-hero-media img{height:220px;}
  .zigzag-media img{height:220px;}
  .steps{grid-template-columns:1fr;gap:0;border-top:0;padding-top:0;}
  .step{padding:0 0 0 26px;margin-bottom:32px;border-left:1px solid var(--line);}
  .step:last-child{margin-bottom:0;}
  .step::after{left:-5.5px;top:6px;outline:none;}
  .step .step-num{font-size:24px;margin-bottom:8px;}
  .spec-item{flex-direction:column;gap:6px;padding:18px 4px;}
  .spec-item .spec-key{flex:none;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;justify-content:center;}
}
@media (max-width:520px){
  h1{font-size:28px;}
  .logo-text{font-size:17px;}
  .cat-hero-copy .lead{font-size:16px;}
}

/* roulang page: category2 */
:root{
  --brand:#0F5C4C;
  --brand-700:#0A4034;
  --brand-050:#E7F0EC;
  --accent:#F2653F;
  --accent-050:#FDECE6;
  --paper:#FBFAF7;
  --paper-2:#F2F0EA;
  --line:#E4E1D8;
  --ink-900:#121614;
  --ink-600:#4A5450;
  --ink-400:#8A938E;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,22,20,.04), 0 8px 24px -12px rgba(18,22,20,.10);
  --sh-2:0 14px 34px -14px rgba(15,92,76,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --gutter:28px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-.01em}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.24;font-weight:800}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:700}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
a{color:var(--brand);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--brand-700)}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter)}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-14px;margin-right:-14px}
.grid-x>.cell{flex:0 0 auto;min-width:0;max-width:100%;padding-left:14px;padding-right:14px}
.col-8{width:66.6667%}
.col-4{width:33.3333%}
.col-6{width:50%}

/* 顶部细条 */
.announce{background:var(--brand-050);color:var(--brand-700);font-size:13px;letter-spacing:.02em}
.announce-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.announce a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:800;font-size:17px;letter-spacing:-.02em;flex:0 0 auto}
.logo:hover{color:var(--ink-900)}
.logo-mark{position:relative;width:26px;height:26px;border-radius:8px;background:var(--brand);flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;inset:7px;border:2px solid #fff;border-radius:3px}
.nav-pills{display:flex;align-items:center;gap:6px;margin:0 auto}
.pill{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-600);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.pill:hover{background:var(--paper-2);color:var(--ink-900)}
.pill.active{background:var(--brand-050);color:var(--brand-700);font-weight:600}
.header-cta{
  display:inline-flex;align-items:center;gap:6px;height:42px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.header-cta:hover{background:var(--brand-700);color:#fff}
.header-cta:hover .arrow{transform:translateX(3px)}
.arrow{display:inline-block;transition:transform var(--dur) var(--ease)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;flex:0 0 auto;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* 抽屉 */
.drawer-scrim{
  position:fixed;inset:0;background:rgba(18,22,20,.45);opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);z-index:70;
}
.drawer-scrim.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:80;
  padding:20px 22px 32px;overflow-y:auto;transform:translateX(102%);
  transition:transform 220ms var(--ease);
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink-900);
}
.drawer-close:hover{background:var(--paper-2)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{padding:12px 14px;border-radius:12px;color:var(--ink-600);font-size:15.5px;font-weight:500}
.drawer-nav a:hover{background:var(--paper-2);color:var(--ink-900)}
.drawer-nav a.active{background:var(--brand-050);color:var(--brand-700);font-weight:600}
.drawer-cta{display:flex;justify-content:center;width:100%;height:46px;margin-bottom:24px;border-radius:var(--r-pill);background:var(--brand);color:#fff;font-weight:600}
.drawer-cta:hover{background:var(--brand-700);color:#fff}
.drawer-info{border-top:1px solid var(--line);padding-top:18px;font-size:13.5px;color:var(--ink-400);line-height:1.9}

/* 面包屑 */
.crumbs{font-size:14px;color:var(--ink-400);padding:22px 0 0}
.crumbs a{color:var(--ink-400)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{margin:0 8px;color:var(--line)}
.crumbs .current{color:var(--ink-900)}

/* Hero */
.hero{padding:28px 0 0}
.hero-box{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
}
.hero-copy h1{margin-bottom:16px}
.hero-copy .lede{font-size:17px;color:var(--ink-600);max-width:36em}
.hero-visual{border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;position:relative}
.hero-visual img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.hero-visual:hover img{transform:scale(1.03)}
.badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);font-size:13px;font-weight:500;letter-spacing:.02em;
}
.badge-accent{background:var(--accent-050);color:#B23E1D}
.hero-copy .badge-accent{margin-bottom:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff}
.btn-primary:hover .arrow{transform:translateX(3px)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#D9532F;color:#fff}
.btn-accent:hover .arrow{transform:translateX(3px)}

/* 板块通用 */
.section{padding:84px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head p{margin:10px 0 0;color:var(--ink-600);max-width:44em}
.text-link{
  color:var(--brand);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;
  border-bottom:2px solid transparent;transition:border-color var(--dur) var(--ease);
}
.text-link:hover{border-bottom-color:var(--brand)}

/* 标签筛选条 */
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding:8px 0 6px;margin-bottom:8px;
  scrollbar-width:thin;-webkit-overflow-scrolling:touch;
}
.filter-chip{
  flex:0 0 auto;height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-600);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.filter-chip:hover{border-color:var(--brand);color:var(--brand)}
.filter-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}

/* 卡片 */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{overflow:hidden;border-radius:0}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:21px}
.card-body p{font-size:15px;color:var(--ink-600);margin:0}
.card-tags{display:flex;gap:8px;flex-wrap:wrap}

.asym-grid{margin-bottom:24px}
.card-main .card-media{aspect-ratio:16/9}
.asym-side{display:flex;flex-direction:column;gap:20px}
.asym-side .card{flex:1}
.asym-side .card-media{flex:1;min-height:130px}
.asym-side .card-body{padding:20px;gap:8px}
.asym-side .card-body h3{font-size:17px}
.asym-side .card-body p{font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 竖屏卡 */
.v-rail{
  display:flex;gap:18px;overflow-x:auto;padding:6px 2px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.v-card{flex:0 0 218px;scroll-snap-align:start}
.v-media{
  position:relative;aspect-ratio:9/16;border-radius:var(--r-img);overflow:hidden;
  background-size:cover;background-position:center;
}
.v-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,22,20,0) 45%,rgba(18,22,20,.62) 100%);
}
.v-play{
  position:absolute;top:50%;left:50%;width:44px;height:44px;margin:-22px 0 0 -22px;border-radius:50%;
  border:2px solid rgba(255,255,255,.92);z-index:2;opacity:0;transform:scale(.9);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.v-play::after{
  content:"";position:absolute;top:50%;left:52%;transform:translate(-50%,-50%);
  border-style:solid;border-width:7px 0 7px 11px;border-color:transparent transparent transparent #fff;
}
.v-card:hover .v-play{opacity:1;transform:scale(1)}
.v-duration{
  position:absolute;right:8px;bottom:8px;z-index:2;
  background:rgba(18,22,20,.62);color:#fff;font-size:12px;padding:2px 7px;border-radius:6px;
}
.v-topic{
  position:absolute;left:8px;top:8px;z-index:2;background:rgba(255,255,255,.9);
  color:var(--brand-700);font-size:12px;font-weight:600;padding:2px 8px;border-radius:var(--r-pill);
}
.v-title{font-size:14.5px;font-weight:600;color:var(--ink-900);line-height:1.55;margin:10px 0 4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.v-meta{font-size:12.5px;color:var(--ink-400);margin:0}

/* 场景对照列表 */
.compare{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff}
.compare-head,.compare-row{display:grid;grid-template-columns:1fr 1fr;gap:0}
.compare-head div{
  padding:16px 24px;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--ink-400);background:var(--paper-2);
}
.compare-head div:first-child{border-right:1px solid var(--line)}
.compare-row:nth-child(odd){background:var(--paper-2)}
.compare-row+.compare-row{border-top:1px solid var(--line)}
.compare-row div{padding:20px 24px;font-size:15px}
.compare-row .from{color:var(--ink-400)}
.compare-row .to{color:var(--ink-900);font-weight:500;border-left:1px solid var(--line)}
.compare-row .from::before{content:"— ";color:var(--line)}

/* CTA 通栏 */
.cta-band{
  background-color:var(--brand-700);
  background-image:linear-gradient(rgba(10,64,52,.93),rgba(10,64,52,.93)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:#fff;border-radius:var(--r-card);overflow:hidden;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:48px}
.cta-inner h2{color:#fff;margin-bottom:8px}
.cta-inner p{color:rgba(255,255,255,.82);margin:0;max-width:44em}
.cta-inner .btn-accent{flex:0 0 auto}

/* FAQ */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:16px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
  transition:background var(--dur) var(--ease);
}
.faq-q:hover{background:var(--paper-2)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform var(--dur) var(--ease);
}
.faq-icon::before{top:7px;left:0;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg) scaleY(0)}
.faq-a{padding:0 24px 20px;background:var(--paper-2);font-size:15.5px;line-height:1.85;color:var(--ink-600)}
.faq-a[hidden]{display:none}
.faq-a p{padding-top:18px;margin:0}

/* 页脚 */
.site-footer{background:var(--brand-700);color:rgba(255,255,255,.86);margin-top:84px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:64px 0 40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);margin:0;max-width:32em}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.16);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.6);
}

/* 进场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* 响应式 */
@media (max-width:1023px){
  :root{--gutter:22px}
  .hero-box{grid-template-columns:1fr;gap:28px;padding:32px}
  .hero-visual{aspect-ratio:16/9}
  .section{padding:68px 0}
  .section-tight{padding:52px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:52px 0 32px}
  .cta-inner{padding:36px}
}
@media (max-width:900px){
  .nav-pills,.header-cta{display:none}
  .burger{display:flex}
  .col-8,.col-4{width:100%}
  .asym-side{flex-direction:row}
  .asym-side .card{flex:1}
  .asym-side .card-media{min-height:150px}
}
@media (max-width:767px){
  :root{--gutter:20px}
  body{font-size:15.5px;line-height:1.9}
  .announce{display:none}
  .header-inner{height:60px}
  .hero{padding:20px 0 0}
  .hero-box{padding:24px 20px;border-radius:16px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .cta-inner{flex-direction:column;align-items:flex-start;text-align:left;padding:28px 22px}
  .cta-inner .btn-accent{width:100%}
  .compare-head div{padding:12px 16px}
  .compare-row div{padding:16px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .v-card{flex:0 0 200px}
  .asym-side{flex-direction:column}
  .asym-side .card-media{min-height:160px;aspect-ratio:16/9}
}
@media (max-width:520px){
  .hero-copy .lede{font-size:15.5px}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .compare-head,.compare-row{grid-template-columns:1fr}
  .compare-head div:first-child{border-right:0}
  .compare-row .to{border-left:0;border-top:1px solid var(--line)}
  .compare-row .from{background:var(--paper-2)}
  .card-body{padding:18px}
  .faq-q{padding:14px 18px;font-size:15.5px}
  .faq-a{padding:0 18px 18px}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --brand:#0F5C4C;
  --brand-700:#0A4034;
  --brand-050:#E7F0EC;
  --accent:#F2653F;
  --accent-050:#FDECE6;
  --paper:#FBFAF7;
  --paper-2:#F2F0EA;
  --line:#E4E1D8;
  --ink-900:#121614;
  --ink-600:#4A5450;
  --ink-400:#8A938E;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,22,20,.04), 0 8px 24px -12px rgba(18,22,20,.10);
  --sh-2:0 14px 34px -14px rgba(15,92,76,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --container:1200px;
  --font:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

/* ============ 基础复位 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--brand-700);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-050);color:var(--brand-700);}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.24;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.005em;}
h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--ink-900);}
h4{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink-900);}
p{margin-bottom:1.4em;}
p:last-child{margin-bottom:0;}

/* ============ 覆盖 Foundation 默认 ============ */
.button,.button.primary,.button.secondary{
  background:var(--brand);color:#fff;border-radius:var(--r-pill);
  font-family:var(--font);font-size:15px;font-weight:600;padding:14px 26px;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.button:hover{background:var(--brand-700);color:#fff;}
.accordion{border:0;background:transparent;}
.accordion-item{border:0;background:transparent;}
.accordion-title{border:0;background:transparent;padding:0;}
.accordion-content{border:0;background:transparent;padding:0;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

/* ============ 顶部细条 ============ */
.announce{background:var(--brand-050);border-bottom:1px solid var(--line);}
.announce-inner{
  min-height:36px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:13px;font-weight:500;letter-spacing:.02em;color:var(--brand-700);
}
.announce-inner a{color:var(--brand-700);border-bottom:1px solid rgba(10,64,52,.28);}
.announce-inner a:hover{border-bottom-color:var(--brand-700);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.header-inner{
  min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;
  color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap;
}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:var(--brand);position:relative;
}
.logo-mark::after{
  content:"";position:absolute;right:-4px;bottom:-4px;width:12px;height:12px;
  border-radius:50%;background:var(--accent);border:2px solid #fff;
}
.nav-pills{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;}
.pill{
  display:inline-block;padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-600);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
  white-space:nowrap;
}
.pill:hover{background:var(--paper-2);color:var(--ink-900);}
.pill.active{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--ink-900);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#d9532f;color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn .arrow{transition:transform var(--dur) var(--ease);}
.btn:hover .arrow{transform:translateX(3px);}

/* 文字按钮 */
.text-link{
  position:relative;display:inline-block;font-size:14.5px;font-weight:600;color:var(--brand);
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;width:100%;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.text-link:hover::after{transform:scaleX(1);}

/* ============ 徽章 ============ */
.badge{
  display:inline-block;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);
  font-size:13px;font-weight:500;letter-spacing:.02em;
}
.badge-accent{background:var(--accent-050);color:#B23F1E;}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-400);padding:24px 0 0;
}
.crumbs a{color:var(--ink-400);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#C7C4B8;}
.crumbs .current{color:var(--ink-900);font-weight:600;}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--paper-2);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-600);}

/* ============ 内页 Hero ============ */
.page-hero{padding:52px 0 72px;background:#fff;border-bottom:1px solid var(--line);}
.page-hero h1{margin:20px 0 18px;max-width:820px;}
.page-hero .lead{font-size:17px;line-height:1.85;color:var(--ink-600);max-width:720px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:44px;margin-top:44px;
  padding-top:32px;border-top:1px solid var(--line);
}
.fact-num{
  display:block;font-size:28px;font-weight:800;color:var(--brand);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.fact-label{font-size:13.5px;font-weight:500;color:var(--ink-400);letter-spacing:.02em;}

/* ============ 双栏对照 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;}
.compare-col{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.compare-col:hover{box-shadow:var(--sh-2);transform:translateY(-4px);}
.compare-col-featured{border-color:#CFE0D9;}
.compare-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 24px;border-bottom:1px solid var(--line);background:#fff;
}
.compare-col-featured .compare-head{background:var(--brand-050);}
.compare-tag{
  font-size:13px;font-weight:500;color:var(--brand-700);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px 12px;white-space:nowrap;
}
.compare-col-featured .compare-tag{background:#fff;border-color:#CFE0D9;}
.compare-list li{
  display:flex;align-items:center;gap:12px;
  min-height:52px;padding:10px 24px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-600);
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list li:nth-child(odd){background:#FAF9F6;}
.compare-list li:hover{background:var(--brand-050);transform:translateX(6px);}
.dot{
  flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--brand);
  transform:rotate(45deg);
}
.dot-muted{background:#B9BEB8;}
.compare-foot{padding:20px 24px;border-top:1px solid var(--line);}

/* ============ 差异条 ============ */
.bars{display:grid;gap:8px;}
.bar-row{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow var(--dur) var(--ease);
}
.bar-row:hover{box-shadow:var(--sh-2);}
.bar-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:18px;}
.bar-name{font-size:17px;font-weight:700;color:var(--ink-900);}
.bar-desc{font-size:13.5px;color:var(--ink-400);}
.bar-line{display:grid;grid-template-columns:88px 1fr 56px;align-items:center;gap:14px;margin-bottom:10px;}
.bar-line:last-child{margin-bottom:0;}
.bar-tag{
  font-size:13px;font-weight:500;color:var(--ink-600);
  background:var(--paper-2);border-radius:var(--r-pill);padding:3px 12px;text-align:center;
}
.bar-track{
  height:12px;border-radius:var(--r-pill);background:var(--paper-2);overflow:hidden;
}
.bar-fill{
  display:block;height:100%;border-radius:var(--r-pill);background:#A9C6BC;
  transition:width 600ms var(--ease);
}
.bar-fill-alt{background:var(--brand);}
.bar-num{
  font-size:14px;font-weight:700;color:var(--ink-900);
  font-variant-numeric:tabular-nums;text-align:right;
}

/* ============ 结论卡 ============ */
.conclusion{
  background:var(--brand-050);border:1px solid #CFE0D9;border-radius:var(--r-card);
  padding:44px;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
}
.conclusion h2{margin-bottom:14px;}
.conclusion p{max-width:640px;color:var(--ink-600);}

/* ============ FAQ ============ */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:16px 24px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-900);background:#fff;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-q:hover{background:#FAF9F6;color:var(--brand);}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  transition:transform var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:50%;top:3px;width:2px;height:14px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:3px;height:2px;width:14px;transform:translateY(-50%);}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{background:var(--paper-2);padding:20px 24px;}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--ink-600);margin:0;}

/* ============ 移动端抽屉 ============ */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid var(--line);background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;}
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(18,22,20,.42);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);
  background:#fff;padding:20px;overflow-y:auto;
  box-shadow:-12px 0 40px -20px rgba(18,22,20,.4);
}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink-900);
}
.drawer-list{display:grid;gap:6px;margin-bottom:26px;}
.drawer-list a{
  display:block;padding:13px 16px;border-radius:14px;font-size:15.5px;
  font-weight:500;color:var(--ink-600);
}
.drawer-list a:hover{background:var(--paper-2);color:var(--ink-900);}
.drawer-list a.active{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.drawer-note{font-size:13.5px;color:var(--ink-400);padding:16px;border-top:1px solid var(--line);}
.drawer-note strong{display:block;color:var(--ink-900);font-size:14px;margin-bottom:8px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-700);color:#E9EFEC;padding:72px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:52px;
}
.footer-brand .logo{color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{
  margin-top:18px;font-size:14px;line-height:1.8;color:#BFD2CB;max-width:340px;
}
.footer-col h4{
  font-size:14px;font-weight:600;letter-spacing:.04em;color:#fff;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col li{font-size:14px;color:#BFD2CB;line-height:1.7;}
.footer-col a{color:#BFD2CB;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:#9FB8B0;font-variant-numeric:tabular-nums;
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;}
}
@media (max-width:1023px){
  .nav-pills{display:none;}
  .header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{min-height:60px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .compare-grid{grid-template-columns:1fr;gap:20px;}
  .conclusion{grid-template-columns:1fr;padding:32px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px;}
}
@media (max-width:767px){
  .announce{display:none;}
  .container{padding:0 20px;}
  body{font-size:15.5px;line-height:1.9;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .page-hero{padding:36px 0 52px;}
  .hero-facts{gap:28px;margin-top:32px;padding-top:24px;}
  .fact-num{font-size:24px;}
  .compare-list li{padding:10px 18px;font-size:14.5px;}
  .compare-head{padding:18px;}
  .bar-row{padding:20px 18px;}
  .bar-line{grid-template-columns:74px 1fr 50px;gap:10px;}
  .faq-q{padding:14px 18px;font-size:15px;}
  .faq-a{padding:16px 18px;}
  .conclusion{padding:26px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{padding-top:56px;}
  .crumbs{padding-top:18px;font-size:13px;}
}
@media (max-width:520px){
  .hero-facts{flex-direction:column;gap:18px;}
  .compare-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .bar-line{grid-template-columns:1fr;gap:6px;}
  .bar-num{text-align:left;}
  .bar-tag{justify-self:start;}
}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
  .btn:hover,.compare-col:hover{transform:none;}
}

/* roulang page: category4 */
:root{
  --brand:#0F5C4C;
  --brand-700:#0A4034;
  --brand-050:#E7F0EC;
  --accent:#F2653F;
  --accent-050:#FDECE6;
  --paper:#FBFAF7;
  --paper-2:#F2F0EA;
  --line:#E4E1D8;
  --ink-900:#121614;
  --ink-600:#4A5450;
  --ink-400:#8A938E;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,22,20,.04), 0 8px 24px -12px rgba(18,22,20,.10);
  --sh-2:0 14px 34px -14px rgba(15,92,76,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--paper);
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

h1{font-size:clamp(30px,4.6vw,46px);line-height:1.24;font-weight:800;letter-spacing:-.01em;color:var(--ink-900)}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700;color:var(--ink-900)}
h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--ink-900)}
h4{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink-900)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 28px}}

/* Foundation 默认样式覆盖 */
.button,.button.primary,.button.secondary{
  background:var(--brand);color:#fff;border-radius:var(--r-pill);
  border:1px solid var(--brand);font-weight:600;font-size:15px;
  padding:0 26px;height:46px;line-height:44px;transition:all .2s var(--ease);
}
.button:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.accordion{border:0;background:transparent}
.accordion-title,.accordion-content{border:0}

/* 顶部细条 */
.announce{background:var(--brand-050);color:var(--brand-700);font-size:13px;font-weight:500;letter-spacing:.02em}
.announce .container{display:flex;align-items:center;justify-content:space-between;height:36px}
.announce a{color:var(--brand-700);border-bottom:1px solid rgba(15,92,76,.35);padding-bottom:1px}
.announce a:hover{color:var(--brand)}
@media (max-width:1023px){.announce{display:none}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:16px;height:60px}
@media (min-width:1024px){.header-inner{height:72px;gap:28px}}

.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);flex:0 0 auto}
.logo-mark{position:relative;width:22px;height:22px;border-radius:6px;background:var(--brand);flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;right:-4px;bottom:-4px;width:11px;height:11px;border-radius:50%;background:var(--accent);border:2px solid #fff}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--ink-900);white-space:nowrap}

.nav-pills{display:none;align-items:center;gap:4px;margin-left:auto}
@media (min-width:1024px){.nav-pills{display:flex}}
.pill{
  display:inline-block;padding:8px 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-600);transition:all .2s var(--ease);
}
.pill:hover{background:var(--paper-2);color:var(--ink-900)}
.pill.active{background:var(--brand-050);color:var(--brand);font-weight:600}

.header-cta{display:none;flex:0 0 auto}
@media (min-width:1024px){.header-cta{display:inline-flex;align-items:center;height:44px}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .2s var(--ease);white-space:nowrap;cursor:pointer}
@media (min-width:1024px){.btn{height:48px;padding:0 26px}}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#d94f2c;color:#fff;transform:translateY(-1px)}
.btn-accent .arrow{transition:transform .2s var(--ease)}
.btn-accent:hover .arrow{transform:translateX(3px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;
  font-size:14.5px;position:relative;padding-bottom:2px}
.btn-text::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.btn-text:hover::after{transform:scaleX(1)}

.menu-toggle{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);margin-left:auto}
@media (min-width:1024px){.menu-toggle{display:none}}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(18,22,20,.42);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .24s var(--ease);padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);position:relative}
.drawer-close::before,.drawer-close::after{content:"";position:absolute;top:50%;left:50%;width:16px;height:2px;background:var(--ink-900)}
.drawer-close::before{transform:translate(-50%,-50%) rotate(45deg)}
.drawer-close::after{transform:translate(-50%,-50%) rotate(-45deg)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 14px;border-radius:12px;color:var(--ink-600);font-size:15.5px;font-weight:500}
.drawer-nav a:hover{background:var(--paper-2);color:var(--ink-900)}
.drawer-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--ink-400);border-top:1px solid var(--line);padding-top:16px}

/* 面包屑 */
.breadcrumb{padding:20px 0 0;font-size:14px;color:var(--ink-400)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--line)}
.breadcrumb li:last-child::after{content:none}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--ink-900)}

/* Hero */
.page-hero{padding:28px 0 0}
.hero-split{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:1024px){.hero-split{grid-template-columns:1.05fr .95fr;gap:56px;padding:20px 0 8px}}
.badge{display:inline-block;font-size:13px;font-weight:500;letter-spacing:.02em;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);margin-bottom:16px}
.hero-copy h1{margin-bottom:16px}
.lede{font-size:16.5px;line-height:1.85;color:var(--ink-600);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-figure{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);height:220px}
@media (min-width:640px){.hero-figure{height:280px}}
@media (min-width:1024px){.hero-figure{height:320px}}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.hero-figure:hover img{transform:scale(1.03)}

/* 板块 */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{max-width:44em;margin-bottom:32px}
.section-head h2{margin-bottom:12px}
.section-head p{font-size:16px;color:var(--ink-600)}

/* 自查三步 */
.steps{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:20px}}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
  position:relative;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  background:var(--brand-050);color:var(--brand);font-size:18px;font-weight:800;font-variant-numeric:tabular-nums;margin-bottom:16px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:15px;line-height:1.8}

/* FAQ 布局 */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.faq-layout{grid-template-columns:3fr 9fr;gap:48px;align-items:start}}
.toc-wrap{position:static}
@media (min-width:1024px){.toc-wrap{position:sticky;top:100px}}
.toc{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}
@media (min-width:1024px){.toc{flex-direction:column;gap:2px;overflow:visible;padding:0}}
.toc a{font-size:14px;color:var(--ink-600);padding:10px 14px;border-radius:12px;white-space:nowrap;
  border-left:2px solid transparent;transition:all .2s var(--ease)}
@media (min-width:1024px){.toc a{border-radius:0 10px 10px 0}}
.toc a:hover{background:var(--paper-2);color:var(--ink-900)}
.toc a.is-active{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-050)}

.faq-search{margin-bottom:28px}
.faq-search label{display:block;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--ink-400);margin-bottom:8px}
.search-field{position:relative}
.search-field input{width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-input);
  padding:0 16px 0 42px;font-size:15px;color:var(--ink-900);background:#fff;transition:all .2s var(--ease)}
.search-field input::placeholder{color:var(--ink-400)}
.search-field input:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(15,92,76,.18);outline:none}
.search-field .icon{position:absolute;left:15px;top:50%;width:15px;height:15px;transform:translateY(-50%);
  border:2px solid var(--ink-400);border-radius:50%;pointer-events:none}
.search-field .icon::after{content:"";position:absolute;right:-5px;bottom:-3px;width:7px;height:2px;background:var(--ink-400);
  transform:rotate(45deg);border-radius:2px}

.faq-group{margin-bottom:36px}
.faq-group h3{font-size:19px;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:4px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-toggle{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  min-height:64px;padding:14px 2px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink-900);
  transition:color .2s var(--ease)}
.faq-toggle:hover{color:var(--brand)}
.faq-item.is-open .faq-toggle{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 auto;width:16px;height:16px;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{top:7px;left:0;width:16px;height:2px}
.faq-icon::after{top:0;left:7px;width:2px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{background:var(--paper-2);border-radius:var(--r-img);padding:18px 20px;margin:0 0 16px;font-size:15.5px;line-height:1.85}
.faq-a p+p{margin-top:12px}
.faq-empty{border:1px dashed var(--line);border-radius:var(--r-card);min-height:180px;display:flex;align-items:center;
  justify-content:center;text-align:center;padding:24px;font-size:14px;color:var(--ink-400)}

/* 响应说明 */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px}
@media (min-width:1024px){.panel{padding:36px}}
.facts{display:grid;grid-template-columns:1fr;gap:18px;margin-top:8px}
@media (min-width:640px){.facts{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.facts{grid-template-columns:repeat(4,1fr)}}
.fact{border-top:2px solid var(--brand-050);padding-top:16px}
.fact strong{display:block;font-size:26px;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.fact span{display:block;font-size:13.5px;color:var(--ink-400);margin-top:6px;letter-spacing:.02em}
.fact p{font-size:14.5px;margin-top:8px;color:var(--ink-600)}

/* 联系 CTA */
.contact-cta{margin-top:8px}
.cta-card{background:var(--brand-050);border:1.5px solid #D6E6DE;border-radius:var(--r-card);padding:28px;
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
@media (min-width:1024px){.cta-card{padding:40px}}
.cta-card h2{font-size:clamp(21px,2.4vw,26px);margin-bottom:10px}
.cta-card p{font-size:15.5px;max-width:40em}

/* 页脚 */
.site-footer{background:var(--brand-700);color:#E8F1ED;margin-top:56px;padding:56px 0 24px;font-size:14.5px}
@media (min-width:1024px){.site-footer{margin-top:88px;padding:72px 0 28px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.site-footer .logo-text{color:#fff}
.site-footer .logo-mark{background:#fff}
.site-footer .logo-mark::after{background:var(--accent);border-color:var(--brand-700)}
.footer-brand p{margin-top:14px;color:#BED4CB;max-width:30em;line-height:1.8}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#C8DCD4}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-col li{color:#C8DCD4}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#A9C4BA}

/* 进入视口动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}