/* roulang page: index */
:root{
  --c-primary:#1E6F63;
  --c-primary-dark:#0F2E2C;
  --c-primary-light:#3E9C8B;
  --c-primary-tint:#E6F1EE;
  --c-accent:#C96A34;
  --c-amber:#E0A24A;
  --c-bg:#F6F4EF;
  --c-card:#FFFFFF;
  --c-line:#E3DED4;
  --c-line-soft:#E6E1D7;
  --c-text:#23302E;
  --c-muted:#5A6663;
  --c-danger:#B4442E;
  --r-card:14px;
  --r-img:18px;
  --r-input:10px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,46,44,.05);
  --sh-2:0 14px 34px rgba(15,46,44,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --f-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --f-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.035;
  background-image:radial-gradient(rgba(15,46,44,.9) 1px,transparent 1px);
  background-size:18px 18px;
}
h1,h2,h3,h4,h5{font-family:var(--f-serif);font-weight:600;letter-spacing:0;color:var(--c-text);margin:0}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:22px;line-height:1.45}
h4{font-size:18px;line-height:1.6}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-accent)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
section[id]{scroll-margin-top:76px}

/* 布局骨架 */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:240px;z-index:50;
  background:#fff;border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  overflow-y:auto;
  box-shadow:var(--sh-1);
}
.side-nav::before{content:"";display:block;height:4px;background:var(--c-primary);flex:0 0 4px}
.side-brand{padding:22px 22px 18px;border-bottom:1px solid var(--c-line-soft)}
.side-brand .logo{display:block;font-family:var(--f-serif);font-size:21px;font-weight:700;color:var(--c-primary-dark);letter-spacing:.02em;line-height:1.3}
.side-brand .logo span{color:var(--c-primary)}
.side-brand .slogan{display:block;margin-top:6px;font-size:12px;line-height:1.6;color:var(--c-muted);letter-spacing:.02em}
.nav-group{padding:18px 14px 0}
.nav-group-title{font-size:12px;letter-spacing:.14em;color:var(--c-muted);padding:0 8px 8px;margin:0;font-family:var(--f-sans);font-weight:600}
.nav-link{
  position:relative;display:flex;align-items:center;gap:8px;
  height:44px;padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--c-text);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--c-primary);
  transition:height .22s var(--ease);
}
.nav-link:hover{background:var(--c-primary-tint);color:var(--c-primary)}
.nav-link.is-active{background:var(--c-primary-tint);color:var(--c-primary);font-weight:600}
.nav-link.is-active::before{height:20px}
.side-foot{margin-top:auto;padding:20px 22px 26px;border-top:1px solid var(--c-line-soft);font-size:13px;line-height:1.7;color:var(--c-muted)}
.side-foot a{color:var(--c-primary);display:block;word-break:break-all}
.side-foot .copy{margin-top:10px;font-size:12px;color:#8b938f}

.topbar{
  display:none;position:sticky;top:0;z-index:60;
  height:60px;align-items:center;justify-content:space-between;
  padding:0 16px;background:#fff;border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.topbar .logo{font-family:var(--f-serif);font-size:18px;font-weight:700;color:var(--c-primary-dark)}
.topbar .logo span{color:var(--c-primary)}
.burger{
  width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  display:flex;align-items:center;justify-content:center;gap:4px;flex-direction:column;cursor:pointer;
}
.burger i{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.burger.is-open i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open i:nth-child(2){opacity:0}
.burger.is-open i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  position:fixed;top:60px;left:0;bottom:0;width:82%;max-width:320px;z-index:55;
  background:#fff;border-right:1px solid var(--c-line);
  transform:translateX(-102%);transition:transform .28s var(--ease);
  overflow-y:auto;padding:16px 14px 32px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:60px 0 0 0;background:rgba(15,46,44,.42);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease);z-index:54;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

.site-main{position:relative;z-index:1;margin-left:240px;min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 56px}
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--c-line-soft);border-bottom:1px solid var(--c-line-soft)}

/* 通用组件 */
.sec-head{max-width:760px;margin-bottom:48px}
.sec-title{position:relative;padding-left:26px;margin-bottom:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.58em;width:18px;height:3px;border-radius:2px;background:var(--c-primary)}
.sec-desc{color:var(--c-muted);font-size:16px;margin:0}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.6;letter-spacing:.02em;
  background:rgba(30,111,99,.12);color:var(--c-primary);white-space:nowrap;
}
.badge-amber{background:rgba(224,162,74,.2);color:#8a5b12}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:16px;font-weight:600;
  cursor:pointer;text-align:center;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:#196055;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-tint);color:var(--c-primary);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-2px)}
.btn-sm{height:44px;padding:0 22px;font-size:15px}
.card{
  background:var(--c-card);border:1px solid var(--c-line-soft);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{border-color:rgba(30,111,99,.3);transform:translateY(-2px);box-shadow:var(--sh-2)}
.link-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.link-more i{transition:transform .24s var(--ease)}
.link-more:hover i{transform:translateX(4px)}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* Hero */
.hero{
  position:relative;min-height:78vh;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,46,44,.92) 0%,rgba(15,46,44,.72) 46%,rgba(15,46,44,.28) 100%);
}
.hero-inner{position:relative;z-index:2;padding:104px 0 56px;width:100%}
.hero-brand{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.18em;color:#CFE3DE;margin-bottom:20px}
.hero-brand::before{content:"";width:26px;height:2px;background:var(--c-primary-light);border-radius:2px}
.hero h1{color:#fff;max-width:660px;margin-bottom:20px}
.hero-sub{max-width:640px;font-size:18px;line-height:1.8;color:#DCE9E5;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px}
.hero-stats{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.24);
  margin-top:56px;padding-top:28px;
}
.hero-stats .stat{padding:0 22px;border-left:1px solid rgba(255,255,255,.18)}
.hero-stats .stat:first-child{border-left:0;padding-left:0}
.stat-num{font-family:var(--f-serif);font-size:34px;line-height:1.2;color:#fff;font-weight:600}
.stat-num small{font-size:16px;margin-left:2px;font-family:var(--f-sans)}
.stat-label{font-size:13px;color:#BFD6D1;margin-top:4px}

/* 卖点 2+1 */
.feature-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:24px;align-items:stretch}
.feature-main{display:flex;flex-direction:column;overflow:hidden}
.feature-main .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-tint)}
.feature-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.feature-main:hover .thumb img{transform:scale(1.03)}
.feature-main .body{padding:28px 28px 30px}
.feature-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-tint);color:var(--c-primary);font-size:18px;margin-bottom:16px;
}
.feature-main h3{margin-bottom:10px}
.feature-main p{color:var(--c-muted);font-size:16px;margin-bottom:18px}
.feature-side{display:grid;grid-template-rows:repeat(3,1fr);gap:24px}
.side-card{padding:22px 24px;display:flex;flex-direction:column;justify-content:center}
.side-card .feature-icon{width:38px;height:38px;font-size:16px;margin-bottom:12px}
.side-card h4{margin-bottom:8px}
.side-card p{font-size:14px;color:var(--c-muted);line-height:1.7;margin-bottom:12px}

/* 演示 */
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:40px 0}
.showcase + .showcase{border-top:1px solid var(--c-line)}
.showcase.reverse .showcase-media{order:2}
.showcase-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:16/10}
.showcase-media img{width:100%;height:100%;object-fit:cover}
.showcase-body h3{margin-bottom:14px}
.showcase-body > p{color:var(--c-muted);font-size:16px;margin-bottom:20px}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed var(--c-line-soft);
  font-size:15px;color:var(--c-text);
}
.point-list li:last-child{border-bottom:0}
.point-list i{color:var(--c-primary);font-size:14px;line-height:1.85}
.point-list .idx{
  flex:0 0 26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  background:rgba(201,106,52,.14);color:var(--c-accent);font-size:12px;font-weight:700;font-family:var(--f-sans);
}

/* 证据 */
.proof{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:48px;align-items:start}
.proof-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.proof-stat{padding:24px;border-left:3px solid var(--c-primary)}
.proof-stat .num{font-family:var(--f-serif);font-size:36px;line-height:1.15;color:var(--c-primary);font-weight:600}
.proof-stat .num small{font-size:15px;font-family:var(--f-sans);color:var(--c-muted);margin-left:2px}
.proof-stat .label{font-size:14px;color:var(--c-muted);margin-top:6px}
.badge-wall{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.badge-wall span{
  padding:8px 14px;border-radius:8px;background:var(--c-primary-tint);
  color:var(--c-primary);font-size:13px;line-height:1.4;
}
.quote{padding:20px 24px;border-left:3px solid var(--c-accent);background:#fff;border-radius:0 var(--r-card) var(--r-card) 0;box-shadow:var(--sh-1)}
.quote + .quote{margin-top:18px}
.quote p{font-size:15px;line-height:1.8;color:var(--c-text);margin-bottom:10px}
.quote cite{font-style:normal;font-size:13px;color:var(--c-muted)}

/* 价格 */
.plan-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:24px;align-items:stretch}
.plan{padding:32px 32px 34px;display:flex;flex-direction:column;position:relative}
.plan h3{margin-bottom:6px}
.plan .plan-for{font-size:14px;color:var(--c-muted);margin-bottom:22px}
.plan .price{font-family:var(--f-serif);font-size:38px;line-height:1.2;color:var(--c-primary-dark);font-weight:600}
.plan .price small{font-size:15px;font-family:var(--f-sans);color:var(--c-muted);margin-left:4px}
.plan .price-note{font-size:13px;color:var(--c-muted);margin-top:6px;margin-bottom:22px}
.plan-feature li{display:flex;gap:10px;align-items:flex-start;font-size:15px;padding:8px 0;color:var(--c-text)}
.plan-feature i{color:var(--c-primary);font-size:13px;line-height:2}
.plan-feature li.off{color:#93998f}
.plan-feature li.off i{color:#c3c7c0}
.plan .btn{margin-top:26px;align-self:flex-start}
.plan-recommend{border:1.5px solid var(--c-primary);box-shadow:var(--sh-2)}
.plan-tag{
  position:absolute;top:-13px;left:32px;
  background:var(--c-primary);color:#fff;font-size:12px;letter-spacing:.08em;
  padding:3px 14px;border-radius:var(--r-pill);
}
.compare{margin-top:48px;border:1px solid var(--c-line-soft);border-radius:var(--r-card);overflow:hidden;background:#fff}
.compare-row{
  display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr);
  min-height:48px;align-items:center;font-size:15px;
}
.compare-row:nth-child(odd){background:#FBFAF7}
.compare-row > div{padding:12px 24px}
.compare-row > div:not(:first-child){text-align:center;border-left:1px solid var(--c-line-soft)}
.compare-head{background:var(--c-primary-dark);color:#fff;font-weight:600;font-size:14px}
.compare-head > div{border-left-color:rgba(255,255,255,.16)}
.compare-row .yes{color:var(--c-primary);font-weight:600}
.compare-row .no{color:#a2a8a1}
.compare .compare-row:first-child:hover,.compare-row:hover{background:var(--c-primary-tint)}

/* FAQ */
.faq-list{background:#fff;border:1px solid var(--c-line-soft);border-radius:var(--r-card);padding:6px 26px;box-shadow:var(--sh-1)}
.faq-item{border-bottom:1px solid var(--c-line);transition:box-shadow .26s var(--ease),padding-left .26s var(--ease)}
.faq-item:last-child{border-bottom:0}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--c-primary);padding-left:14px}
.faq-item summary{
  display:flex;align-items:center;gap:14px;min-height:56px;padding:14px 4px;
  cursor:pointer;list-style:none;font-size:16.5px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{font-family:var(--f-sans);font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.06em;flex:0 0 26px}
.faq-icon{position:relative;margin-left:auto;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .26s var(--ease)}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-icon::after{transform:rotate(90deg)}
.faq-item[open] .faq-icon::before{transform:rotate(180deg)}
.faq-a{padding:0 4px 22px 40px;font-size:15px;line-height:1.8;color:var(--c-muted)}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;background:#fff;
  border:1px solid var(--c-line-soft);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.news-card:hover{border-color:rgba(30,111,99,.3);transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-cover{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-tint)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:18px;line-height:1.5;color:var(--c-text);margin:0}
.news-card:hover .news-title{color:var(--c-primary)}
.news-sum{font-size:14px;line-height:1.7;color:var(--c-muted);margin:0}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--c-muted)}
.news-more{color:var(--c-primary);font-weight:600}
.empty-state{
  grid-column:1 / -1;min-height:160px;
  border:1px dashed var(--c-line);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:var(--c-muted);font-size:15px;background:#fff;
}
.empty-state i{font-size:22px;color:var(--c-primary-light)}

/* CTA + 表单 */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,46,44,.94),rgba(30,111,99,.78))}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:56px;align-items:center}
.cta-inner h2{color:#fff;margin-bottom:16px}
.cta-inner p{color:#D6E5E1;font-size:16px;max-width:520px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-points span{font-size:13px;color:#E3EFEB;border:1px solid rgba(255,255,255,.3);border-radius:var(--r-pill);padding:5px 14px}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);color:var(--c-text)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-tip{font-size:13px;color:var(--c-muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--c-muted);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-input);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,111,99,.14);
}
.field.has-error input,.field.has-error select{border-color:var(--c-danger)}
.field .err{display:none;font-size:13px;color:var(--c-danger);margin-top:6px}
.field.has-error .err{display:block}
.form-card .btn{width:100%}
.form-ok{display:none;margin-top:14px;font-size:14px;color:var(--c-primary);text-align:center}
.form-ok.show{display:block}

/* 页脚 */
.site-footer{background:var(--c-primary-dark);color:#C9D6D2;margin-top:auto;border-top:1px solid var(--c-primary)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding:64px 56px 48px}
.footer-brand .logo{font-family:var(--f-serif);font-size:20px;font-weight:700;color:#fff;margin-bottom:14px;display:block}
.footer-brand p{font-size:13.5px;line-height:1.8;color:#A9BDB8;max-width:320px}
.footer-title{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;font-family:var(--f-sans)}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:13.5px;color:#C9D6D2;transition:color .2s var(--ease),border-color .2s var(--ease);border-bottom:1px solid transparent}
.footer-list a:hover{color:#fff;border-bottom-color:#fff}
.footer-contact li{font-size:13.5px;line-height:1.8;margin-bottom:10px;color:#A9BDB8}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 56px;text-align:center;font-size:12.5px;color:#8FA5A0;
}
.footer-bottom span{margin:0 8px}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:12px;
  padding:12px 22px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s,background .2s var(--ease);
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:#196055;color:#fff}
.float-cta .fc-icon{font-size:17px}
.float-cta .fc-text{display:flex;flex-direction:column;line-height:1.25;text-align:left}
.float-cta .fc-text strong{font-size:14.5px;font-weight:600}
.float-cta .fc-text em{font-style:normal;font-size:11.5px;color:#CBE2DD}

/* 断点 */
@media (max-width:1199px){
  .side-nav{width:200px}
  .site-main{margin-left:200px}
  .wrap{padding:0 40px}
  .footer-grid{padding:56px 40px 40px;gap:36px}
  .footer-bottom{padding:18px 40px}
  .showcase{gap:40px}
  .cta-inner{gap:36px}
}
@media (max-width:991px){
  .side-nav{display:none}
  .topbar{display:flex}
  .site-main{margin-left:0}
  .wrap{padding:0 24px}
  .section{padding:56px 0}
  .hero{min-height:auto}
  .hero-inner{padding:64px 0 40px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px 0;margin-top:40px}
  .hero-stats .stat:nth-child(3){border-left:0;padding-left:0}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{grid-template-rows:none;grid-template-columns:1fr 1fr;gap:16px}
  .showcase{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .showcase.reverse .showcase-media{order:0}
  .proof{grid-template-columns:1fr;gap:32px}
  .plan-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 24px 36px}
  .footer-bottom{padding:18px 24px}
  .compare-row{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr);font-size:14px}
  .compare-row > div{padding:10px 14px}
}
@media (max-width:767px){
  body{font-size:16px}
  h2{font-size:25px}
  h3{font-size:20px}
  .sec-head{margin-bottom:32px}
  .feature-side{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .proof-stats{grid-template-columns:1fr}
  .faq-list{padding:4px 16px}
  .faq-a{padding-left:30px}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    justify-content:center;padding:10px 16px;
    padding-bottom:calc(10px + env(safe-area-inset-bottom));
    min-height:56px;
  }
  .float-cta .fc-text em{display:none}
}
@media (max-width:559px){
  .wrap{padding:0 16px}
  .hero-cta .btn{width:100%}
  .hero-stats{grid-template-columns:1fr}
  .hero-stats .stat{border-left:0;padding:0 0 16px;border-bottom:1px solid rgba(255,255,255,.16)}
  .hero-stats .stat:last-child{border-bottom:0;padding-bottom:0}
  .footer-grid{grid-template-columns:1fr;padding:40px 16px 28px}
  .footer-bottom{padding:16px}
  .plan{padding:26px 20px 28px}
  .compare-row{grid-template-columns:1fr 1fr;font-size:13px}
  .compare-row > div:first-child{grid-column:1 / -1;background:#FBFAF7;font-weight:600}
  .compare-row > div:not(:first-child){border-left:1px solid var(--c-line-soft)}
}

/* roulang page: article */
:root{
  --ink:#23302E;
  --ink-soft:#5A6663;
  --brand:#1E6F63;
  --brand-deep:#0F2E2C;
  --brand-mid:#3E9C8B;
  --brand-soft:#E6F1EE;
  --clay:#C96A34;
  --amber:#E0A24A;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-soft:#E6E1D7;
  --danger:#B4442E;
  --radius-card:14px;
  --radius-img:18px;
  --radius-input:10px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,46,44,.05);
  --shadow-2:0 14px 34px rgba(15,46,44,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 18% 8%, rgba(30,111,99,.035), transparent 46%),
    radial-gradient(circle at 88% 26%, rgba(201,106,52,.028), transparent 42%);
  background-repeat:no-repeat;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--clay);}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:0;color:var(--brand-deep);margin:0;}
p{margin:0 0 1.05em;}
button{font-family:var(--sans);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 左侧竖栏 ---------- */
.side-nav{
  position:fixed;top:0;left:0;
  width:240px;height:100vh;overflow-y:auto;
  display:flex;flex-direction:column;gap:22px;
  padding:26px 18px 22px;
  background:var(--card);
  border-right:1px solid var(--line);
  z-index:60;
}
.side-nav::before{content:"";position:absolute;top:0;left:0;width:4px;height:58px;background:var(--brand);}
.side-brand .logo{
  display:block;font-family:var(--serif);font-size:24px;line-height:1.2;
  font-weight:700;letter-spacing:.02em;color:var(--brand-deep);
}
.side-brand .logo span{color:var(--brand);}
.side-brand .slogan{display:block;margin-top:8px;font-size:12.5px;line-height:1.65;color:var(--ink-soft);}
.nav-group{display:flex;flex-direction:column;gap:4px;}
.nav-group-title{margin:0 0 6px;font-size:11.5px;font-weight:600;letter-spacing:.16em;color:#98A5A1;}
.nav-link{
  position:relative;display:flex;align-items:center;min-height:44px;
  padding:0 12px 0 16px;border-radius:8px;
  font-size:15px;color:var(--ink);
}
.nav-link::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--brand);
  transition:height .24s var(--ease);
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand);}
.nav-link:hover::before{height:18px;}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-link.is-active::before{height:22px;}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--ink-soft);}
.side-foot a{font-size:13.5px;color:var(--brand);}
.side-foot .copy{color:#98A5A1;font-size:12.5px;}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;height:60px;align-items:center;justify-content:space-between;
  padding:0 18px;background:var(--card);border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);z-index:70;
}
.mobile-bar .logo{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--brand-deep);}
.mobile-bar .logo span{color:var(--brand);}
.menu-toggle{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--brand);font-size:17px;cursor:pointer;
  transition:background-color .22s var(--ease),border-color .22s var(--ease);
}
.menu-toggle:hover{background:var(--brand-soft);border-color:rgba(30,111,99,.3);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,46,44,.45);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);z-index:55;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- 布局容器 ---------- */
.page-shell{margin-left:240px;display:flex;flex-direction:column;min-height:100vh;}
.page-shell main{flex:1 0 auto;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 56px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 56px;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:40px;font-size:13px;line-height:1.6;color:var(--ink-soft);
}
.crumb a{color:var(--ink-soft);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B9C2BE;}
.crumb .current{color:var(--ink);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{max-width:860px;margin-top:22px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  background:rgba(30,111,99,.12);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.03em;
}
h1.article-title{font-size:clamp(28px,3.4vw,44px);line-height:1.25;margin:18px 0 16px;}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;
  padding-bottom:20px;border-bottom:1px solid var(--line);
  font-size:13px;line-height:1.6;color:var(--ink-soft);
}
.article-meta i{margin-right:6px;color:var(--brand-mid);}
.article-cover{margin:28px 0 4px;border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-1);}
.article-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;
  padding:36px 0 64px;align-items:start;
}
.article-main{min-width:0;}
.article-body{max-width:720px;font-size:18px;line-height:1.9;color:#25322F;}
.article-body p{margin:0 0 1.05em;}
.article-body h2{
  position:relative;font-size:30px;line-height:1.35;margin:2.4em 0 .9em;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;width:4px;height:1.02em;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:22px;line-height:1.45;margin:1.9em 0 .7em;}
.article-body h4{font-size:18px;line-height:1.5;margin:1.5em 0 .6em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em;line-height:1.7;}
.article-body li{margin-bottom:.4em;}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;font-size:17px;line-height:1.85;color:#2C3B38;
  background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:0 10px 10px 0;
}
.article-body img{border-radius:14px;margin:8px 0;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(30,111,99,.35);}
.article-body a:hover{color:var(--clay);border-bottom-color:rgba(201,106,52,.45);}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;
}
.article-body th{background:#FBFAF7;text-align:left;font-weight:600;color:var(--brand-deep);}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);line-height:1.7;}
.article-body tr:last-child td{border-bottom:none;}
.article-body code{background:#F1EFE8;border-radius:6px;padding:2px 6px;font-size:15px;}

/* ---------- 右侧栏 ---------- */
.aside-col{position:sticky;top:24px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:20px 20px 22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;letter-spacing:.02em;margin:0 0 12px;}
.toc-card summary{
  list-style:none;cursor:default;font-family:var(--serif);font-size:15px;font-weight:600;
  color:var(--brand-deep);margin-bottom:12px;
}
.toc-card summary::-webkit-details-marker{display:none;}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto;}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  font-size:14px;line-height:1.6;color:var(--ink-soft);
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand);}
.toc-list a.is-current{background:var(--brand-soft);border-left-color:var(--brand);color:var(--brand);font-weight:600;}
.mini-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;}
.mini-list li{padding-bottom:14px;border-bottom:1px solid var(--line);}
.mini-list li:last-child{padding-bottom:0;border-bottom:none;}
.mini-list a{display:block;font-family:var(--serif);font-size:15px;line-height:1.55;color:var(--brand-deep);}
.mini-list a:hover{color:var(--brand);}
.mini-list span{display:block;margin-top:4px;font-size:12.5px;color:var(--ink-soft);}
.aside-cta{background:var(--brand-soft);border-color:rgba(30,111,99,.18);}
.aside-cta p{font-size:13.5px;line-height:1.8;color:#3B4A47;margin:0 0 14px;}

/* ---------- 标签与返回 ---------- */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.tags-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:22px;}
.tags-row .label{font-size:13px;color:var(--ink-soft);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:rgba(30,111,99,.10);color:var(--brand);font-size:13px;font-weight:500;
}
.tag:hover{background:rgba(30,111,99,.18);color:var(--brand);}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand);}
.back-link:hover{color:var(--clay);gap:12px;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  background:#FBFAF7;padding:56px 24px;text-align:center;color:var(--ink-soft);
}
.empty-state i{font-size:28px;color:var(--brand-mid);display:block;margin-bottom:14px;}
.empty-state p{font-size:15px;margin:0 0 12px;}
.empty-state a{font-weight:600;}

/* ---------- 区块标题 ---------- */
.section{padding:0 0 72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{position:relative;font-size:30px;line-height:1.35;padding-left:28px;}
.section-head h2::before{content:"";position:absolute;left:0;top:.42em;width:18px;height:4px;border-radius:2px;background:var(--brand);}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--ink-soft);}

/* ---------- 内容卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line-soft);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(30,111,99,.3);}
.post-card .thumb{overflow:hidden;aspect-ratio:16/10;background:#EDEAE2;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:19px;line-height:1.5;}
.post-card h3 a{color:var(--brand-deep);}
.post-card h3 a:hover{color:var(--brand);}
.post-card p{font-size:14px;line-height:1.8;color:var(--ink-soft);margin:0;flex:1;}
.post-card .meta{font-size:12.5px;color:#8E9A96;display:flex;align-items:center;gap:8px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .24s var(--ease),background-color .24s var(--ease),box-shadow .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:#1A6257;color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(15,46,44,.16);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent;}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px);}
.btn-outline:active{transform:none;}
.btn-ghost{border-color:rgba(255,255,255,.72);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:none;}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin:0 0 72px;padding:44px 48px;border-radius:var(--radius-img);
  background:linear-gradient(135deg,#0F2E2C 0%,#1E6F63 100%);
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;margin:0 0 10px;}
.cta-band p{margin:0;font-size:14.5px;line-height:1.8;color:#C6DAD5;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:auto;background:var(--brand-deep);color:#C9D6D2;
  border-top:1px solid rgba(62,156,139,.5);
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:48px;
  padding-top:56px;padding-bottom:40px;
}
.footer-brand .logo{
  display:block;font-family:var(--serif);font-size:20px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#A9BDB8;max-width:340px;margin:0;}
.footer-title{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin:0 0 14px;font-family:var(--sans);}
.footer-list,.footer-contact{list-style:none;margin:0;padding:0;font-size:13.5px;line-height:2;}
.footer-list a,.footer-contact a{color:#C9D6D2;}
.footer-list a:hover,.footer-contact a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{color:#C9D6D2;}
.footer-contact strong{color:#8FB3AC;font-weight:600;margin-right:8px;}
.footer-bottom{
  display:flex;justify-content:center;flex-wrap:wrap;gap:10px;
  padding:18px 24px;border-top:1px solid rgba(201,214,210,.15);
  font-size:12.5px;color:#91A8A3;
}

/* ---------- 断点 ---------- */
@media (max-width:1199.98px){
  .side-nav{width:200px;padding:24px 14px 20px;}
  .page-shell{margin-left:200px;}
  .wrap,.container{padding:0 40px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px;}
  .footer-grid{gap:36px;}
}
@media (max-width:991.98px){
  .mobile-bar{display:flex;}
  .side-nav{
    width:290px;max-width:86vw;transform:translateX(-104%);
    transition:transform .3s var(--ease);box-shadow:var(--shadow-2);padding:22px 18px 20px;
  }
  .side-nav.is-open{transform:none;}
  .page-shell{margin-left:0;}
  .wrap,.container{padding:0 24px;}
  .crumb{padding-top:26px;}
  h1.article-title{font-size:clamp(26px,5vw,34px);}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding:30px 0 56px;}
  .aside-col{position:static;}
  .toc-card summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;margin-bottom:0;}
  .toc-card[open] summary{margin-bottom:12px;}
  .toc-card summary::after{content:"+";font-family:var(--sans);font-size:19px;color:var(--brand);line-height:1;}
  .toc-card[open] summary::after{content:"–";}
  .article-body{font-size:17px;line-height:1.88;}
  .article-body h2{font-size:25px;}
  .article-body h3{font-size:20px;}
  .section{padding:0 0 56px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:34px 30px;margin-bottom:56px;}
  .cta-band h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr 1fr;padding-top:44px;padding-bottom:32px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .article-body{font-size:17px;}
  .article-meta{gap:14px;font-size:12.5px;}
  .section-head h2{font-size:24px;padding-left:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:559.98px){
  .wrap,.container{padding:0 18px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .btn{height:44px;padding:0 20px;font-size:14.5px;}
  .article-cover{margin:22px 0 2px;border-radius:14px;}
  .cta-band{padding:28px 22px;border-radius:14px;}
  .cta-band h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .crumb .current{white-space:normal;max-width:none;}
}

/* roulang page: category1 */
:root{
  --ink:#0F2E2C;
  --primary:#1E6F63;
  --primary-deep:#185A50;
  --primary-light:#3E9C8B;
  --primary-tint:#E6F1EE;
  --clay:#C96A34;
  --amber:#E0A24A;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-soft:#E6E1D7;
  --text:#23302E;
  --muted:#5A6663;
  --danger:#B4442E;
  --radius-card:14px;
  --radius-img:18px;
  --radius-input:10px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,46,44,.05);
  --shadow-2:0 14px 34px rgba(15,46,44,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:240ms;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(15,46,44,.035) 1px, transparent 1px);
  background-size:22px 22px;
}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-weight:600;
  letter-spacing:0;
  color:var(--ink);
  margin:0;
}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:22px;line-height:1.45;}
h4{font-size:18px;line-height:1.5;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--primary-deep);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:var(--primary-tint);color:var(--ink);}

/* ---------- 布局骨架 ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 56px;}
.main{margin-left:240px;min-height:100vh;display:flex;flex-direction:column;}
.main > .page-body{flex:1 1 auto;}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:240px;
  background:#fff;
  border-right:1px solid var(--line);
  padding:26px 18px 20px;
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
  z-index:40;
}
.side-brand{padding-left:6px;position:relative;}
.side-brand::before{
  content:"";position:absolute;left:-18px;top:4px;width:4px;height:32px;
  background:var(--primary);border-radius:0 3px 3px 0;
}
.side-brand .logo{
  display:inline-block;
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:22px;font-weight:700;letter-spacing:.02em;color:var(--ink);
  line-height:1.3;
}
.side-brand .logo span{color:var(--primary);}
.side-brand .slogan{display:block;margin-top:6px;font-size:13px;line-height:1.6;color:var(--muted);}
.nav-group-title{
  font-size:12px;letter-spacing:.14em;color:var(--muted);
  margin:0 0 8px;padding-left:14px;text-transform:none;
}
.nav-link{
  position:relative;
  display:block;
  height:44px;
  line-height:44px;
  padding:0 12px 0 14px;
  border-radius:8px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-link::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:2px;background:transparent;
  transition:background var(--dur) var(--ease);
}
.nav-link:hover{background:var(--primary-tint);color:var(--primary);}
.nav-link.is-active{background:var(--primary-tint);color:var(--primary);font-weight:600;}
.nav-link.is-active::before{background:var(--primary);}
.side-foot{margin-top:auto;padding:16px 6px 0;border-top:1px solid var(--line);font-size:13px;line-height:1.9;}
.side-foot a{display:block;color:var(--muted);}
.side-foot a:hover{color:var(--primary);}
.side-foot .copy{color:#8B9691;margin-top:6px;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,46,44,.05);
  align-items:center;justify-content:space-between;
  padding:0 18px;z-index:70;
}
.topbar .logo{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:19px;font-weight:700;color:var(--ink);
}
.topbar .logo span{color:var(--primary);}
.menu-toggle{
  width:44px;height:40px;border:1px solid var(--line);border-radius:8px;
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.menu-toggle:hover{border-color:var(--primary);background:var(--primary-tint);}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.mobile-drawer{
  position:fixed;left:0;right:0;top:60px;bottom:0;
  background:rgba(15,46,44,.42);
  opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  z-index:65;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  width:min(320px,84vw);height:100%;background:#fff;
  padding:20px 16px;overflow-y:auto;
  transform:translateX(-18px);
  transition:transform var(--dur) var(--ease);
  box-shadow:var(--shadow-2);
}
.mobile-drawer.is-open .drawer-panel{transform:none;}
.drawer-panel .nav-group{margin-bottom:18px;}
.drawer-close{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;margin-bottom:14px;
  border:1px solid var(--line);border-radius:8px;background:#fff;
  font-size:14px;color:var(--muted);cursor:pointer;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- 通用按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary-tint);color:var(--primary);}
.btn-ghost{border-color:rgba(255,255,255,.62);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;line-height:1;padding:6px 12px;border-radius:999px;
  background:rgba(30,111,99,.12);color:var(--primary);
}
.badge-amber{background:rgba(224,162,74,.18);color:#8A5A12;}

/* ---------- 首屏 ---------- */
.cat-hero{
  position:relative;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  color:#fff;
  min-height:280px;
  display:flex;align-items:center;
  padding:64px 0;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(15,46,44,.92) 0%,rgba(15,46,44,.74) 48%,rgba(30,111,99,.52) 100%);
}
.cat-hero .wrap{position:relative;z-index:1;width:100%;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:rgba(255,255,255,.78);
  margin:0 0 14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--amber);border-radius:2px;}
.cat-hero h1{color:#fff;}
.cat-lead{
  max-width:640px;margin:16px 0 0;
  font-size:18px;line-height:1.8;color:rgba(255,255,255,.88);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:26px;}

/* ---------- 数据条 ---------- */
.stats-band{background:#fff;border-bottom:1px solid var(--line);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:30px 24px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:38px;line-height:1.1;color:var(--primary);margin:0;
  display:flex;align-items:baseline;gap:4px;
}
.stat-num span{font-size:15px;color:var(--muted);font-family:inherit;}
.stat-label{margin:8px 0 0;font-size:14px;line-height:1.6;color:var(--muted);}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-title{position:relative;padding-left:30px;}
.section-title::before{
  content:"";position:absolute;left:0;top:.62em;width:18px;height:3px;
  background:var(--primary);border-radius:2px;
}
.section-desc{margin:14px 0 0;color:var(--muted);font-size:16px;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 长文 + 便签 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;
  align-items:start;
}
.prose p{font-size:17px;line-height:1.9;margin:0 0 1.05em;}
.prose h2{
  font-size:26px;line-height:1.4;margin:2.4em 0 .9em;
  padding-left:14px;border-left:4px solid var(--primary);
}
.prose h2:first-child{margin-top:0;}
.prose figure{margin:28px 0;}
.prose figure img{border-radius:var(--radius-img);width:100%;object-fit:cover;}
.prose figcaption{margin-top:10px;font-size:13px;line-height:1.7;color:var(--muted);}
.prose .note{
  background:var(--primary-tint);
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  padding:18px 22px;margin:26px 0;
  font-size:16px;line-height:1.8;color:var(--ink);
}
.side-notes{position:sticky;top:32px;display:flex;flex-direction:column;gap:18px;}
.note-card{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.note-card .note-title{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:17px;font-weight:600;color:var(--ink);margin:0 0 12px;
}
.tick-list li{
  position:relative;padding-left:22px;margin-bottom:10px;
  font-size:14.5px;line-height:1.7;color:var(--muted);
}
.tick-list li:last-child{margin-bottom:0;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:8px;height:8px;border-radius:2px;background:var(--primary);opacity:.75;
}
.note-card .btn{width:100%;height:44px;margin-top:6px;font-size:15px;}
.note-card .mini-tip{font-size:13px;color:var(--muted);margin:12px 0 0;}

/* ---------- 交付清单 ---------- */
.grid-x{display:flex;flex-wrap:wrap;}
.grid-margin-x{margin-left:-14px;margin-right:-14px;}
.grid-margin-x > .cell{padding-left:14px;padding-right:14px;}
.deliver-card{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:28px;height:100%;
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.deliver-card:hover{border-color:rgba(30,111,99,.3);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.deliver-card h3{margin-bottom:14px;}
.deliver-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15.5px;line-height:1.75;color:var(--text);
}
.deliver-list li:last-child{border-bottom:0;padding-bottom:0;}
.deliver-list li .idx{
  flex:0 0 auto;font-size:13px;color:var(--clay);font-weight:600;
  line-height:1.9;min-width:22px;
}

/* ---------- 上线检查 ---------- */
.checklist{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  overflow:hidden;
}
.checklist li{
  display:flex;align-items:flex-start;gap:14px;
  padding:16px 26px;border-bottom:1px solid var(--line);
  font-size:15.5px;line-height:1.75;
}
.checklist li:last-child{border-bottom:0;}
.checklist li::before{
  content:"✓";flex:0 0 auto;color:var(--primary);font-weight:700;font-size:15px;line-height:1.75;
}
.checklist li:nth-child(even){background:#FBFAF7;}

/* ---------- 适配对象 ---------- */
.fit-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:48px;align-items:start;}
.badge-wall{display:flex;flex-wrap:wrap;gap:12px;}
.badge-wall .badge{font-size:13px;padding:10px 16px;background:#fff;border:1px solid var(--line);color:var(--ink);}
.badge-wall .badge:hover{border-color:var(--primary);color:var(--primary);}
.fit-list li{
  padding:16px 0;border-bottom:1px solid var(--line);
}
.fit-list li:last-child{border-bottom:0;}
.fit-list strong{
  display:block;font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:17px;font-weight:600;color:var(--ink);margin-bottom:4px;
}
.fit-list span{font-size:15px;line-height:1.75;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);padding:6px 26px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  height:56px;cursor:pointer;list-style:none;
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"▾";margin-left:auto;font-size:14px;color:var(--primary);
  transition:transform 260ms var(--ease);
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--primary);}
.faq-num{font-size:13px;color:var(--primary);font-weight:600;letter-spacing:.06em;font-family:inherit;}
.faq-body{padding:0 0 20px 36px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- 跨分类内链 ---------- */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.link-card{
  display:block;background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--radius-card);overflow:hidden;
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.link-card:hover{border-color:rgba(30,111,99,.3);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.link-card .thumb{aspect-ratio:16/10;overflow:hidden;}
.link-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.link-card:hover .thumb img{transform:scale(1.03);}
.link-card .body{padding:22px;}
.link-card h3{font-size:19px;margin-bottom:8px;}
.link-card p{font-size:14.5px;line-height:1.75;color:var(--muted);margin:0 0 14px;}
.link-card .more{font-size:14px;font-weight:600;color:var(--primary);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  color:#fff;padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(15,46,44,.93),rgba(30,111,99,.72));
}
.cta-band .wrap{position:relative;z-index:1;}
.cta-inner{max-width:720px;}
.cta-band h2{color:#fff;}
.cta-band p{margin-top:14px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.86);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#C9D6D2;
  border-top:1px solid var(--primary);
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:48px;
  padding-top:56px;padding-bottom:44px;
}
.footer-brand .logo{
  display:inline-block;
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:20px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-brand p{font-size:14px;line-height:1.85;color:#C9D6D2;max-width:340px;}
.footer-title{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:15px;font-weight:600;color:#fff;margin:0 0 14px;
}
.footer-list li{margin-bottom:10px;}
.footer-list a,.footer-contact li{font-size:13.5px;color:#C9D6D2;}
.footer-list a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{margin-bottom:10px;line-height:1.7;}
.footer-contact strong{color:#fff;font-weight:600;margin-right:6px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0 22px;
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;
  font-size:13px;color:#93A6A1;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .side-nav{width:200px;padding:22px 14px 18px;}
  .main{margin-left:200px;}
  .wrap{padding:0 40px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px;}
  .footer-grid{gap:36px;}
}
@media (max-width:991px){
  .side-nav{display:none;}
  .topbar{display:flex;}
  .main{margin-left:0;padding-top:60px;}
  .wrap{padding:0 28px;}
  .cat-hero{padding:52px 0;min-height:200px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat{padding:24px 20px;}
  .stat:first-child{padding-left:20px;}
  .stat:nth-child(odd){border-left:0;padding-left:0;}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
  .section{padding:56px 0;}
  .article-layout{grid-template-columns:1fr;}
  .side-notes{position:static;}
  .fit-layout{grid-template-columns:1fr;gap:32px;}
  .link-cards{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .wrap{padding:0 20px;}
  h2{font-size:24px;}
  .prose h2{font-size:21px;}
  .section{padding:48px 0;}
  .section-title{padding-left:26px;}
  .section-title::before{width:16px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat{border-left:0;border-top:1px solid var(--line);padding:20px 0;}
  .stat:first-child{border-top:0;padding-top:0;}
  .stat-num{font-size:32px;}
  .faq-list{padding:4px 18px;}
  .faq-item summary{font-size:16px;height:auto;padding:16px 0;line-height:1.5;}
  .faq-body{padding-left:0;}
  .cta-band p{font-size:15.5px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-top:44px;}
  .footer-bottom{font-size:12.5px;text-align:center;}
}
@media (max-width:559px){
  .cat-hero{padding:40px 0;}
  .cat-lead{font-size:16px;}
  .btn{height:44px;padding:0 20px;font-size:15px;width:100%;}
  .hero-actions{flex-direction:column;gap:12px;}
  .hero-actions .btn{width:100%;}
  .deliver-card{padding:22px;}
  .checklist li{padding:14px 18px;font-size:15px;}
  .note-card{padding:18px;}
  .link-card .body{padding:18px;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --primary:#1E6F63;
  --primary-deep:#0F2E2C;
  --primary-light:#3E9C8B;
  --primary-soft:#E6F1EE;
  --accent:#C96A34;
  --amber:#E0A24A;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-soft:#E6E1D7;
  --text:#23302E;
  --muted:#5A6663;
  --danger:#B4442E;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --r-card:14px;
  --r-img:18px;
  --r-input:10px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(15,46,44,.05);
  --sh-2:0 14px 34px rgba(15,46,44,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:240ms;
  --side:240px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--bg);
  background-image:radial-gradient(rgba(15,46,44,.04) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease)}
a:hover{color:var(--accent)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;color:var(--primary-deep);letter-spacing:0}
p{margin:0 0 1.05em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary-soft);color:var(--primary-deep)}

/* ============ 容器 ============ */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 56px}

/* ============ 左侧导航 ============ */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:var(--side);
  background:#fff;border-right:1px solid var(--line);
  padding:26px 18px 22px;display:flex;flex-direction:column;gap:20px;
  overflow-y:auto;z-index:30;
}
.side-nav::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.side-brand .logo{font-family:var(--serif);font-size:24px;font-weight:700;color:var(--primary-deep);display:inline-block;letter-spacing:.02em}
.side-brand .logo span{color:var(--primary)}
.side-brand .logo:hover{color:var(--accent)}
.side-brand .slogan{display:block;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-top:6px}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-group-title{font-size:12px;letter-spacing:.14em;color:#9AA5A1;margin:0 0 6px 12px;font-weight:600}
.nav-link{
  position:relative;display:flex;align-items:center;height:44px;padding:0 12px;
  border-radius:8px;font-size:15px;color:var(--text);font-weight:500;
}
.nav-link::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--primary);transition:height var(--dur) var(--ease)}
.nav-link:hover{background:var(--primary-soft);color:var(--primary-deep)}
.nav-link.is-active{background:var(--primary-soft);color:var(--primary);font-weight:700}
.nav-link.is-active::before{height:22px}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:16px;display:flex;flex-direction:column;gap:8px}
.side-foot a{font-size:13px;color:var(--muted)}
.side-foot a:hover{color:var(--primary)}
.side-foot .copy{font-size:12px;color:#A2ACA8}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  display:none;align-items:center;justify-content:space-between;
  height:60px;padding:0 18px;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,46,44,.05);position:sticky;top:0;z-index:40;
}
.mobile-topbar .logo{font-family:var(--serif);font-size:21px;font-weight:700;color:var(--primary-deep)}
.mobile-topbar .logo span{color:var(--primary)}
.menu-btn{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;color:var(--primary);font-size:18px;display:inline-flex;align-items:center;justify-content:center;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.menu-btn:hover{background:var(--primary-soft);border-color:rgba(30,111,99,.35)}

/* 抽屉（Foundation off-canvas 覆盖） */
.off-canvas.position-left{width:280px;background:#fff;border-right:1px solid var(--line)}
.drawer-inner{padding:22px 18px;display:flex;flex-direction:column;gap:18px;height:100%;overflow-y:auto}
.drawer-close{align-self:flex-end;background:transparent;border:none;font-size:20px;color:var(--muted);padding:6px}
.drawer-close:hover{color:var(--primary)}

/* ============ 内容外壳 ============ */
.content-shell{margin-left:var(--side)}

/* ============ 面包屑 ============ */
.crumbs{font-size:13px;color:#B7C2BE;margin:0 0 14px;letter-spacing:.02em}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:#fff}
.crumbs .sep{margin:0 6px;opacity:.6}

/* ============ 内页横幅 ============ */
.page-hero{
  position:relative;min-height:280px;display:flex;align-items:flex-end;
  background-image:linear-gradient(100deg,rgba(15,46,44,.90) 0%,rgba(15,46,44,.55) 62%,rgba(15,46,44,.30) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-inner{padding-top:72px;padding-bottom:44px;width:100%}
.page-title{
  color:#fff;font-size:clamp(28px,3.4vw,44px);line-height:1.25;
  display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;max-width:760px;
}
.title-brand{
  font-family:var(--sans);font-size:14px;font-weight:500;letter-spacing:.08em;
  color:rgba(255,255,255,.72);border-left:1px solid rgba(255,255,255,.35);padding-left:14px;
}
.hero-lead{color:rgba(255,255,255,.88);font-size:17px;max-width:640px;margin:16px 0 20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.02em;
  padding:6px 14px;border-radius:999px;background:rgba(230,241,238,.16);
  color:#DCEDE8;border:1px solid rgba(230,241,238,.28);
}
.tag i{font-size:11px;color:var(--amber)}

/* ============ 板块 ============ */
.section{padding:72px 0}
.section-tight{padding:56px 0 72px}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--primary);margin:0 0 10px}
.section-title{
  position:relative;font-size:30px;line-height:1.4;padding-left:24px;margin:0;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.62em;width:16px;height:3px;border-radius:2px;background:var(--primary);
}
.section-desc{color:var(--muted);font-size:16px;margin:14px 0 0}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:26px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:none}
.stat-num{font-family:var(--serif);font-size:34px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-num small{font-family:var(--sans);font-size:14px;font-weight:500;color:var(--muted);margin-left:5px;letter-spacing:0}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}

.intro-copy{margin-top:44px;max-width:820px}
.intro-copy p{color:#3C4A47;font-size:17px}
.intro-note{
  margin-top:22px;display:flex;gap:14px;align-items:flex-start;
  background:var(--primary-soft);border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:18px 22px;font-size:15px;color:#2C4A45;
}
.intro-note i{color:var(--accent);margin-top:5px}

/* ============ 图标矩阵 ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.icon-card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:26px 24px;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.icon-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(30,111,99,.32)}
.icon-badge{
  width:46px;height:46px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:19px;margin-bottom:16px;
}
.icon-card:hover .icon-badge{background:var(--primary);color:#fff;transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease)}
.card-title{font-size:19px;line-height:1.5;margin:0 0 10px}
.card-text{font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 14px}
.card-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.card-link i{font-size:11px;transition:transform var(--dur) var(--ease)}
.icon-card:hover .card-link i{transform:translateX(4px)}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1)}
.media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 400ms var(--ease)}
.media:hover img{transform:scale(1.03)}
.split-body h3{font-size:22px;line-height:1.45;margin:0 0 14px}
.split-body p{color:#3C4A47;font-size:16px}
.point-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#3C4A47}
.point-list li i{color:var(--accent);margin-top:6px;font-size:12px}

/* ============ 流程条 ============ */
.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.step-card{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);padding:22px 20px}
.step-num{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--accent);line-height:1}
.step-card h4{font-size:17px;margin:12px 0 8px}
.step-card p{font-size:14px;color:var(--muted);margin:0}

/* ============ 证据区 ============ */
.proof-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.proof-list{display:flex;flex-direction:column;gap:18px}
.proof-item{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);padding:22px 24px}
.proof-item strong{display:block;font-family:var(--serif);font-size:28px;color:var(--primary);line-height:1.3}
.proof-item span{font-size:14px;color:var(--muted)}
.quote-card{
  background:var(--card);border:1px solid var(--line-soft);border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:22px 24px;margin-bottom:18px;
}
.quote-card p{font-size:15px;color:#3C4A47;margin:0 0 10px}
.quote-card span{font-size:13px;color:var(--muted)}
.badge-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.mini-badge{
  font-size:12.5px;padding:7px 14px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary);border:1px solid rgba(30,111,99,.14);
}
.mini-badge.amber{background:rgba(224,162,74,.16);color:#8A5B14;border-color:rgba(224,162,74,.3)}

/* ============ 对比表 ============ */
.table-scroll{overflow-x:auto;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.compare-table{
  width:100%;min-width:720px;border-collapse:separate;border-spacing:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  font-size:15px;overflow:hidden;
}
.compare-table th,.compare-table td{padding:14px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare-table thead th{background:var(--primary-deep);color:#fff;font-weight:600;font-size:14px;letter-spacing:.02em}
.compare-table tbody tr:nth-child(even){background:#FBFAF7}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table td.col-us{background:var(--primary-soft);color:var(--primary-deep);font-weight:600}
.compare-table td:first-child{font-weight:600;color:var(--primary-deep);white-space:nowrap}
.table-note{font-size:13px;color:var(--muted);margin-top:14px}

/* ============ FAQ ============ */
.accordion{background:transparent;border:none;border-radius:0;margin:0}
.accordion .accordion-item{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.accordion .accordion-item.is-active{box-shadow:inset 3px 0 0 var(--primary);border-color:rgba(30,111,99,.3)}
.accordion .accordion-title{
  position:relative;display:block;padding:18px 56px 18px 24px;border:none;
  font-family:var(--serif);font-size:17px;font-weight:600;color:var(--primary-deep);line-height:1.6;
}
.accordion .accordion-title:hover{color:var(--primary);background:#FCFBF8}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-family:var(--sans);font-size:22px;line-height:1;color:var(--primary);
  transition:transform 260ms var(--ease);
}
.accordion .accordion-item.is-active > .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.accordion .accordion-content{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted);background:var(--card);border:none}
.accordion .accordion-content p{margin:0}
.faq-num{font-family:var(--sans);font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-right:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;font-family:var(--sans);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#195C52;color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(15,46,44,.18)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-deep);border-color:var(--primary)}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.8)}

/* ============ CTA 区 ============ */
.cta-band{padding:0 0 72px}
.cta-card{
  background:linear-gradient(120deg,var(--primary-deep) 0%,var(--primary) 100%);
  border-radius:var(--r-img);padding:48px 52px;display:flex;gap:36px;align-items:center;justify-content:space-between;
  flex-wrap:wrap;
}
.cta-card h2{color:#fff;font-size:28px;line-height:1.4;margin:0 0 12px;max-width:560px}
.cta-card p{color:rgba(255,255,255,.82);font-size:15.5px;margin:0;max-width:560px}
.cta-card .eyebrow{color:var(--amber)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 跨分类内链 ============ */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{
  display:block;background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(30,111,99,.32)}
.cross-card .media{border-radius:0;box-shadow:none}
.cross-body{padding:20px 22px 24px}
.cross-body h3{font-size:18px;margin:0 0 8px;color:var(--primary-deep)}
.cross-body p{font-size:14px;color:var(--muted);margin:0 0 12px}
.cross-body .card-link{font-size:14px;font-weight:600;color:var(--primary)}
.cross-card:hover .card-link{color:var(--accent)}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:#C9D6D2;border-top:1px solid var(--primary);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:48px}
.footer-brand .logo{font-family:var(--serif);font-size:22px;font-weight:700;color:#fff;display:inline-block;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.9;color:#A8BBB6;margin:0}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.footer-list li{margin-bottom:10px;font-size:14px}
.footer-list a{color:#C9D6D2}
.footer-list a:hover{color:#fff;border-bottom:1px solid #fff}
.footer-contact li{font-size:13px;color:#A8BBB6;margin-bottom:10px;line-height:1.7}
.footer-contact strong{color:#fff;font-weight:600;margin-right:8px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 24px;
  display:flex;justify-content:center;flex-wrap:wrap;gap:12px;font-size:13px;color:#8FA5A0;
}

/* ============ 响应式：1200 / 992 / 768 / 560 ============ */
@media (max-width:1199px){
  :root{--side:200px}
  .wrap{padding:0 40px}
  .split{gap:40px}
  .cta-card{padding:40px 36px}
}
@media (max-width:991px){
  .side-nav{display:none}
  .mobile-topbar{display:flex}
  .content-shell{margin-left:0}
  .wrap{padding:0 32px}
  .page-hero{min-height:220px}
  .hero-inner{padding-top:48px;padding-bottom:36px}
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .step-row{grid-template-columns:repeat(2,1fr)}
  .proof-grid{grid-template-columns:1fr;gap:32px}
  .cross-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:none}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .section{padding:48px 0}
  .section-tight{padding:40px 0 48px}
  .section-title{font-size:24px;padding-left:20px}
  .section-title::before{width:13px}
  .split{grid-template-columns:1fr;gap:24px}
  .split .media{order:-1}
  .btn{height:44px;padding:0 22px}
  .cta-band{padding:0 0 48px}
  .cta-card{padding:32px 24px;gap:24px}
  .cta-card h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{margin-top:32px}
}
@media (max-width:559px){
  .matrix-grid{grid-template-columns:1fr}
  .step-row{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:1fr}
  .stat-item{border-right:none;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:none}
  .page-title{gap:10px}
  .title-brand{font-size:12.5px;padding-left:10px}
  .hero-lead{font-size:15.5px}
  .compare-table{font-size:14px}
  .accordion .accordion-title{padding:16px 48px 16px 18px;font-size:16px}
  .accordion .accordion-title::before{right:18px}
  .accordion .accordion-content{padding:0 18px 18px}
}

/* roulang page: category3 */
:root{
  --ink:#0F2E2C;
  --primary:#1E6F63;
  --primary-hover:#17635a;
  --primary-light:#3E9C8B;
  --primary-soft:#E6F1EE;
  --accent:#C96A34;
  --amber:#E0A24A;
  --amber-soft:#FBEFD9;
  --amber-text:#8A5A16;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-soft:#E6E1D7;
  --text:#23302E;
  --muted:#5A6663;
  --danger:#B4442E;
  --zebra:#FBFAF7;
  --r-card:14px;
  --r-img:18px;
  --r-input:10px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(15,46,44,.05);
  --sh-2:0 14px 34px rgba(15,46,44,.10);
  --t:240ms cubic-bezier(.2,.7,.3,1);
  --nav-w:240px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:0;color:var(--ink);margin:0}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:22px;line-height:1.45}
h4{font-size:18px;line-height:1.5}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;
  width:var(--nav-w);
  height:100vh;
  overflow-y:auto;
  background:#fff;
  border-right:1px solid var(--line);
  padding:26px 18px 28px;
  z-index:40;
}
.side-brand{position:relative;padding-top:6px}
.side-brand::before{
  content:"";position:absolute;top:-6px;left:0;
  width:32px;height:4px;border-radius:2px;background:var(--primary);
}
.logo{
  display:inline-block;
  font-family:var(--font-serif);
  font-size:23px;
  font-weight:700;
  color:var(--ink);
  line-height:1.2;
}
.logo span{color:var(--primary)}
.slogan{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:6px}
.nav-group{margin-top:26px}
.nav-group-title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  margin:0 0 8px;
  padding-left:12px;
}
.nav-link{
  position:relative;
  display:block;
  height:44px;
  line-height:44px;
  padding:0 12px;
  border-radius:8px;
  font-size:15px;
  color:var(--text);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.nav-link:hover{background:var(--primary-soft);color:var(--primary)}
.nav-link.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--primary);
}
.side-foot{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.side-foot a{display:block;color:var(--muted);line-height:2}
.side-foot a:hover{color:var(--primary)}
.side-foot .copy{margin-top:8px;font-size:12px;color:#8A938F}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,46,44,.06);
  align-items:center;justify-content:space-between;
  padding:0 18px;z-index:45;
}
.topbar .logo{font-size:20px}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  cursor:pointer;transition:border-color var(--t),background-color var(--t);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--t),opacity var(--t)}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-soft)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(15,46,44,.45);
  opacity:0;pointer-events:none;transition:opacity var(--t);z-index:39;
}
.nav-overlay.is-open{opacity:1;pointer-events:auto}

/* ---------- 主体 ---------- */
.page-body{margin-left:var(--nav-w);min-width:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 56px}
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-kicker{
  display:inline-block;
  font-size:12px;letter-spacing:.14em;color:var(--primary);
  background:var(--primary-soft);border-radius:999px;padding:6px 14px;margin:0 0 16px;
}
.sec-head h2{position:relative;padding-left:26px;margin-bottom:14px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.55em;width:18px;height:3px;border-radius:2px;background:var(--primary);
}
.sec-lead{color:var(--muted);font-size:16px}

/* ---------- Hero ---------- */
.hero-banner{
  position:relative;
  min-height:280px;
  display:flex;align-items:center;
  color:#fff;
  background-image:linear-gradient(100deg,rgba(15,46,44,.88) 0%,rgba(15,46,44,.62) 55%,rgba(15,46,44,.34) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:52px 0 48px;
  border-bottom:1px solid var(--line);
}
.crumb{font-size:13px;color:rgba(255,255,255,.75);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.75)}
.crumb a:hover{color:#fff}
.crumb span{margin:0 8px}
.hero-tag{
  display:inline-block;font-size:12px;letter-spacing:.14em;
  border:1px solid rgba(255,255,255,.4);border-radius:999px;
  padding:5px 14px;margin:0 0 18px;color:rgba(255,255,255,.9);
}
.hero-banner h1{color:#fff;max-width:640px}
.hero-sub{max-width:640px;font-size:17px;color:rgba(255,255,255,.88);margin:16px 0 26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px}
.hero-points li{font-size:14px;color:rgba(255,255,255,.85);position:relative;padding-left:18px}
.hero-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--amber);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);border-radius:999px;height:44px;padding:0 22px}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);border-radius:999px;height:44px;padding:0 22px;font-size:15px}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary)}
.btn-block{width:100%}

/* ---------- 通用卡片与网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);border-color:rgba(30,111,99,.3);box-shadow:var(--sh-2)}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px;
}
.badge{
  display:inline-block;font-size:12px;line-height:1;padding:6px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-weight:600;
}
.badge-amber{background:var(--amber-soft);color:var(--amber-text)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary)}
.link-more:hover{color:var(--accent);gap:10px}
.link-more i{font-size:12px;transition:transform var(--t)}

/* ---------- 进度条面板 ---------- */
.progress-panel{
  margin-top:28px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.progress-row{display:grid;grid-template-columns:180px 1fr 56px;align-items:center;gap:18px;padding:12px 0}
.progress-row + .progress-row{border-top:1px dashed var(--line)}
.progress-row .pl{font-size:15px;color:var(--text)}
.bar{height:8px;border-radius:999px;background:#EFEDE6;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.progress-row .pv{font-size:15px;font-weight:700;color:var(--primary);text-align:right;font-family:var(--font-serif)}

/* ---------- 图文两栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.split-media img{border-radius:var(--r-img);aspect-ratio:16/10;object-fit:cover;box-shadow:var(--sh-2)}
.split-body h3{margin-bottom:14px}
.split-body p{color:var(--muted)}
.dot-list li{position:relative;padding-left:22px;margin-bottom:10px;font-size:15px;color:var(--text)}
.dot-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.dot-list.amber li::before{background:var(--amber)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:10px}
.timeline::before{
  content:"";position:absolute;left:15px;top:8px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(30,111,99,.15) 100%);
}
.tl-item{position:relative;padding:0 0 34px 58px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:8px;top:8px;width:16px;height:16px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px var(--primary-soft);
}
.tl-num{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--accent);display:block;margin-bottom:4px}
.tl-item h3{font-size:20px;margin-bottom:8px}
.tl-item p{color:var(--muted);font-size:15px;max-width:720px}
.tl-meta{font-size:13px;color:var(--muted);margin-top:8px}

/* ---------- 验收清单 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 32px}
.check-list li{
  position:relative;padding-left:28px;font-size:15px;color:var(--text);
  padding-bottom:12px;border-bottom:1px solid var(--line-soft);
}
.check-list li::before{
  content:"\2713";position:absolute;left:0;top:0;color:var(--primary);font-weight:700;
}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:28px 26px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-family:var(--font-serif);font-size:34px;font-weight:600;color:var(--primary);line-height:1.2}
.stat-num small{font-size:15px;font-family:var(--font-sans);color:var(--muted);margin-left:4px}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}
.badge-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.badge-wall span{
  font-size:13px;color:var(--primary);background:var(--primary-soft);
  border-radius:8px;padding:8px 12px;
}

/* ---------- 档位 ---------- */
.plan-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:24px;align-items:stretch}
.plan{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
}
.plan-rec{border:2px solid var(--primary);box-shadow:var(--sh-2);position:relative}
.plan-rec .badge{position:absolute;top:-13px;left:28px}
.plan-name{font-family:var(--font-serif);font-size:20px;color:var(--ink);margin:0 0 6px}
.plan-price{font-family:var(--font-serif);font-size:26px;color:var(--accent);margin:0 0 10px;font-weight:600}
.plan-desc{color:var(--muted);font-size:15px;margin-bottom:18px}
.plan-list{margin-bottom:22px;flex:1}
.plan-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text);margin-bottom:10px}
.plan-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:2px;background:var(--primary-light);
}
.cmp{margin-top:24px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.cmp-head,.cmp-row{display:grid;grid-template-columns:1.6fr 1fr 1fr;align-items:center;min-height:48px;padding:0 22px}
.cmp-head{background:var(--primary-soft);font-size:14px;font-weight:600;color:var(--ink)}
.cmp-row{border-top:1px solid var(--line);font-size:15px;color:var(--muted)}
.cmp-row:nth-child(even){background:var(--zebra)}
.cmp-row strong{color:var(--text);font-weight:400}
.cmp-yes{color:var(--primary);font-weight:600}
.cmp-no{color:#9AA3A0}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);transition:box-shadow var(--t),padding var(--t)}
.faq-item.is-open{box-shadow:inset 3px 0 0 var(--primary);padding-left:16px}
.faq-q{
  position:relative;width:100%;min-height:56px;display:flex;align-items:center;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:14px 48px 14px 0;font-size:17px;font-weight:600;color:var(--ink);
  transition:color var(--t);
}
.faq-q:hover{color:var(--primary)}
.faq-q .idx{font-size:13px;color:var(--primary);letter-spacing:.08em;margin-right:12px;font-family:var(--font-serif)}
.faq-q::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--primary);transition:transform 260ms ease;line-height:1;
}
.faq-item.is-open .faq-q::after{content:"\2212";transform:translateY(-50%) rotate(180deg)}
.faq-a{display:none;font-size:15px;line-height:1.8;color:var(--muted);padding:0 48px 20px 0}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA 与表单 ---------- */
.cta-band{
  background-image:linear-gradient(100deg,rgba(15,46,44,.94),rgba(30,111,99,.82)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border-radius:var(--r-img);color:#fff;padding:44px;margin-bottom:24px;
}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.85);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:8px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-input);padding:0 14px;font-size:15px;color:var(--text);
  font-family:inherit;transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,111,99,.14);
}
.field-full{grid-column:1 / -1}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}
.form-ok{color:var(--primary);font-weight:600}
.form-err{color:var(--danger);font-weight:600}

/* ---------- 跨分类内链 ---------- */
.cross-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-links .card h4{margin-bottom:8px}
.cross-links .card p{font-size:14px;margin-bottom:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:#C9D6D2;margin-top:24px;
  border-top:1px solid var(--primary);
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px}
.footer-brand .logo{color:#fff;font-size:20px;font-family:var(--font-serif);font-weight:700}
.footer-brand p{font-size:14px;color:#A9BAB5;margin-top:14px;line-height:1.85}
.footer-title{font-size:13px;letter-spacing:.12em;color:#fff;margin-bottom:14px}
.footer-list li{margin-bottom:8px}
.footer-list a{font-size:14px;color:#C9D6D2}
.footer-list a:hover{color:#fff;text-decoration:underline}
.footer-contact li{font-size:14px;color:#A9BAB5;margin-bottom:10px}
.footer-contact strong{color:#fff;font-weight:600;margin-right:8px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;
  font-size:13px;color:#8FA29D;padding:20px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--nav-w:200px}
  .wrap{padding:0 40px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .progress-row{grid-template-columns:150px 1fr 52px}
}
@media (max-width:991px){
  .side-nav{
    width:280px;padding:24px 18px 28px;
    transform:translateX(-100%);
    transition:transform var(--t);
    box-shadow:var(--sh-2);
    z-index:46;
  }
  .side-nav.is-open{transform:translateX(0)}
  .topbar{display:flex}
  .page-body{margin-left:0;padding-top:60px}
  .hero-banner{min-height:200px;padding:36px 0 34px}
  .section{padding:56px 0}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:26px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .plan-grid{grid-template-columns:1fr}
  .cross-links{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .cta-band{padding:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  h2{font-size:24px}
  h3{font-size:20px}
  .wrap{padding:0 20px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .check-list{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cmp-head,.cmp-row{grid-template-columns:1.4fr .8fr .8fr;padding:0 14px;font-size:14px}
  .progress-row{grid-template-columns:1fr;gap:8px}
  .progress-row .pv{text-align:left}
  .timeline::before{left:11px}
  .tl-item{padding-left:42px}
  .tl-item::before{left:4px;width:14px;height:14px}
  .stat-num{font-size:28px}
}
@media (max-width:560px){
  .hero-cta{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .btn-ghost,.btn-outline{width:100%}
  .cta-actions{flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
  .hero-points{flex-direction:column;gap:8px}
}

/* roulang page: category4 */
:root{
  --jade:#1E6F63;
  --jade-deep:#0F2E2C;
  --jade-light:#3E9C8B;
  --jade-pale:#E6F1EE;
  --clay:#C96A34;
  --amber:#E0A24A;
  --paper:#F6F4EF;
  --paper-soft:#FBFAF7;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-soft:#E6E1D7;
  --text:#23302E;
  --muted:#5A6663;
  --danger:#B4442E;
  --radius-card:14px;
  --radius-img:18px;
  --radius-input:10px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,46,44,.05);
  --shadow-2:0 14px 34px rgba(15,46,44,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:240ms;
  --side-w:240px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;color:var(--jade-deep);line-height:1.35;letter-spacing:0}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:22px;line-height:1.45}
h4{font-size:18px;line-height:1.5}
p{line-height:1.85}
a{color:var(--jade);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--clay)}
img{max-width:100%;display:block}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px}

.wrap{max-width:1200px;margin:0 auto;padding:0 56px}

/* ===== 移动顶栏 ===== */
.topbar{
  display:none;
  position:sticky;top:0;z-index:70;
  height:60px;
  align-items:center;justify-content:space-between;
  padding:0 18px;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.topbar .logo{font-size:19px}
.menu-toggle{
  width:42px;height:42px;border:1px solid var(--line);
  border-radius:10px;background:#fff;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--jade-deep);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.menu-toggle:hover{border-color:var(--jade-light);background:var(--jade-pale)}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.scrim{
  position:fixed;inset:0;background:rgba(15,46,44,.45);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  z-index:80;
}
.scrim.is-open{opacity:1;visibility:visible}

/* ===== 左侧导航 ===== */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--side-w);
  background:#fff;
  border-right:1px solid var(--line);
  padding:34px 20px 28px;
  overflow-y:auto;
  z-index:90;
  display:flex;flex-direction:column;
}
.side-nav::after{
  content:"";position:absolute;top:0;left:20px;width:48px;height:4px;
  background:var(--jade);border-radius:0 0 4px 4px;
}
.side-brand{padding-bottom:22px;border-bottom:1px solid var(--line-soft);margin-bottom:20px}
.logo{
  display:inline-block;
  font-family:var(--font-serif);
  font-size:22px;font-weight:700;letter-spacing:.02em;
  color:var(--jade-deep);text-decoration:none;
}
.logo span{color:var(--jade)}
.logo:hover{color:var(--jade-deep)}
.slogan{display:block;margin-top:8px;font-size:12px;line-height:1.6;color:var(--muted);letter-spacing:.02em}
.nav-group{margin-bottom:22px}
.nav-group-title{font-size:12px;letter-spacing:.14em;color:var(--muted);margin:0 0 8px 14px;text-transform:uppercase}
.nav-link{
  position:relative;
  display:flex;align-items:center;
  height:44px;padding:0 14px;border-radius:8px;
  font-size:15px;color:var(--text);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--jade);
  transition:height .2s var(--ease);
}
.nav-link:hover{background:var(--jade-pale);color:var(--jade)}
.nav-link.is-active{background:var(--jade-pale);color:var(--jade);font-weight:600}
.nav-link.is-active::before{height:20px}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line-soft);font-size:13px;line-height:1.7;color:var(--muted)}
.side-foot a{display:block;color:var(--jade);margin-bottom:6px}
.side-foot a:hover{color:var(--clay)}
.side-foot .copy{margin-top:12px;font-size:12px;color:var(--muted)}

/* ===== 内容区 ===== */
.content{margin-left:var(--side-w)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.6;letter-spacing:.04em;
  background:rgba(30,111,99,.12);color:var(--jade);
}
.badge-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.35)}
.badge-amber{background:rgba(224,162,74,.18);color:#8A5D12}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--jade);color:#fff;box-shadow:0 1px 2px rgba(15,46,44,.12)}
.btn-primary:hover{background:#196055;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(15,46,44,.12)}
.btn-outline{background:#fff;color:var(--jade);border-color:var(--jade)}
.btn-outline:hover{background:var(--jade-pale);color:var(--jade);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.68)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--jade);
}
.link-arrow i{font-size:12px;transition:transform var(--dur) var(--ease)}
.link-arrow:hover{color:var(--clay)}
.link-arrow:hover i{transform:translateX(4px)}

/* ===== 页头 ===== */
.page-hero{
  position:relative;
  min-height:280px;
  display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(15,46,44,.88) 0%,rgba(30,111,99,.72) 55%,rgba(15,46,44,.42) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:56px;padding-bottom:64px}
.hero-inner h1{color:#fff;margin:16px 0 14px}
.hero-lead{max-width:640px;font-size:17px;color:rgba(255,255,255,.9);margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}

.hero-metrics{
  background:#fff;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  margin-top:-38px;
  position:relative;z-index:5;
}
.hero-metrics ul{display:grid;grid-template-columns:repeat(4,1fr)}
.hero-metrics li{
  padding:22px 26px;
  border-right:1px solid var(--line-soft);
}
.hero-metrics li:last-child{border-right:0}
.hero-metrics strong{display:block;font-family:var(--font-serif);font-size:32px;line-height:1.2;color:var(--jade)}
.hero-metrics span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ===== 板块 ===== */
.section{padding:72px 0}
.section-alt{background:var(--paper-soft);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:40px}
.kicker{
  display:inline-block;position:relative;
  padding-left:26px;
  font-size:13px;letter-spacing:.14em;color:var(--jade);margin-bottom:14px;
}
.kicker::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:18px;height:2px;background:var(--jade);border-radius:2px;
}
.section-head h2{margin-bottom:14px}
.section-sub{color:var(--muted);font-size:16px}

/* ===== 要点区 ===== */
.value-grid{display:grid;grid-template-columns:minmax(0,0.92fr) minmax(0,1.08fr);gap:48px;align-items:start}
.value-figure{
  border-radius:var(--radius-img);overflow:hidden;
  box-shadow:var(--shadow-1);
  border:1px solid var(--line-soft);
  background:#fff;
}
.value-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.value-caption{padding:18px 22px;font-size:13px;color:var(--muted);border-top:1px solid var(--line-soft)}
.num-list{display:grid;gap:14px}
.num-list li{
  display:grid;grid-template-columns:52px 1fr;gap:14px;
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:20px 22px;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.num-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(30,111,99,.3)}
.num-list .num{
  font-family:var(--font-serif);font-size:20px;font-weight:600;color:var(--clay);line-height:1.4;
}
.num-list h3{font-size:18px;margin-bottom:6px}
.num-list p{font-size:15px;color:var(--muted);line-height:1.75}

/* ===== 案例长条卡 ===== */
.case-list{display:grid;gap:28px}
.case-card{
  display:grid;grid-template-columns:minmax(0,0.78fr) minmax(0,1.22fr);
  gap:0;
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(30,111,99,.3)}
.case-media{overflow:hidden;background:var(--jade-pale)}
.case-media img{width:100%;height:100%;min-height:230px;object-fit:cover;transition:transform var(--dur) var(--ease)}
.case-card:hover .case-media img{transform:scale(1.03)}
.case-body{padding:30px 34px}
.case-body h3{margin:14px 0 12px}
.case-body > p{color:var(--muted);font-size:15.5px}
.case-points{display:grid;gap:8px;margin:18px 0 20px}
.case-points li{
  position:relative;padding-left:20px;
  font-size:14.5px;color:var(--text);
}
.case-points li::before{
  content:"";position:absolute;left:0;top:12px;
  width:7px;height:7px;border-radius:2px;background:var(--amber);
}

/* ===== 深色数据带 ===== */
.band{background:linear-gradient(140deg,var(--jade-deep) 0%,#164A44 100%);color:#fff;padding:72px 0}
.band-inner{display:grid;grid-template-columns:minmax(0,0.85fr) minmax(0,1.15fr);gap:48px;align-items:center}
.band h2{color:#fff;margin-bottom:14px}
.band p{color:rgba(255,255,255,.78);font-size:15.5px}
.band-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.16);border-radius:var(--radius-card);overflow:hidden}
.band-metrics li{background:rgba(15,46,44,.55);padding:26px 24px}
.band-metrics strong{display:block;font-family:var(--font-serif);font-size:34px;line-height:1.2;color:#fff}
.band-metrics span{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.72)}

/* ===== FAQ ===== */
.faq-box{background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item{border-bottom:1px solid var(--line);position:relative;transition:box-shadow var(--dur) var(--ease)}
.faq-item:last-child{border-bottom:0}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--jade)}
.faq-q{
  display:flex;align-items:center;gap:14px;
  min-height:56px;padding:14px 26px;
  cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--jade-deep);
}
.faq-q::-webkit-details-marker{display:none}
.faq-num{font-family:var(--font-serif);font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--clay)}
.faq-icon{margin-left:auto;color:var(--jade);font-size:13px;transition:transform .26s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-a{padding:0 26px 22px 52px;color:var(--muted);font-size:15px;line-height:1.8}

/* ===== CTA ===== */
.cta-band{padding:0 0 72px}
.cta-inner{
  background:linear-gradient(135deg,var(--jade-deep) 0%,var(--jade) 100%);
  border-radius:var(--radius-img);
  padding:52px 56px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  color:#fff;
}
.cta-inner h2{color:#fff;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ===== 跨分类内链 ===== */
.cross-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{
  display:block;background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(30,111,99,.3)}
.cross-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--dur) var(--ease)}
.cross-card:hover img{transform:scale(1.03)}
.cross-body{padding:22px 24px}
.cross-body h3{font-size:18px;margin-bottom:8px;color:var(--jade-deep)}
.cross-body p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ===== 页脚 ===== */
.site-footer{background:var(--jade-deep);color:#C9D6D2;border-top:1px solid var(--jade);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:44px}
.footer-brand .logo{color:#fff;font-size:20px;margin-bottom:14px}
.footer-brand .logo span{color:var(--jade-light)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(201,214,210,.88)}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-list li,.footer-contact li{margin-bottom:10px;font-size:14px;line-height:1.7}
.footer-list a{color:#C9D6D2;border-bottom:1px solid transparent}
.footer-list a:hover{color:#fff;border-bottom-color:#fff}
.footer-contact strong{color:#fff;font-weight:600;margin-right:6px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;
  padding:20px 24px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(201,214,210,.72);
}

/* ===== 断点 ===== */
@media screen and (max-width:1199px){
  :root{--side-w:200px}
  .wrap{padding:0 40px}
  .band-metrics strong{font-size:30px}
  .cta-inner{padding:44px 40px}
}
@media screen and (max-width:991px){
  .topbar{display:flex}
  .side-nav{
    width:280px;
    transform:translateX(-100%);
    transition:transform .28s var(--ease);
    box-shadow:var(--shadow-2);
    padding-top:28px;
  }
  .side-nav.is-open{transform:translateX(0)}
  .content{margin-left:0}
  .wrap{padding:0 24px}
  .section{padding:56px 0}
  .band{padding:56px 0}
  .cta-band{padding:0 0 56px}
  .value-grid,.band-inner{grid-template-columns:1fr;gap:32px}
  .case-card{grid-template-columns:1fr}
  .case-media img{min-height:200px;aspect-ratio:16/10}
  .hero-metrics ul{grid-template-columns:repeat(2,1fr)}
  .hero-metrics li:nth-child(2){border-right:0}
  .hero-metrics li:nth-child(1),.hero-metrics li:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .cross-links{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  h2{font-size:25px}
  h3{font-size:20px}
  .wrap{padding:0 20px}
  .page-hero{min-height:220px}
  .hero-inner{padding-top:44px;padding-bottom:52px}
  .hero-inner h1{font-size:30px}
  .hero-actions{gap:12px}
  .btn{height:44px;padding:0 22px;font-size:15px}
  .section{padding:48px 0}
  .case-body{padding:24px 22px}
  .faq-q{padding:14px 18px;font-size:16px}
  .faq-a{padding:0 18px 20px 46px}
  .cta-inner{padding:34px 24px}
  .band-metrics{grid-template-columns:1fr}
  .band-metrics strong{font-size:28px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media screen and (max-width:559px){
  .hero-metrics{margin-top:-28px}
  .hero-metrics ul{grid-template-columns:1fr}
  .hero-metrics li{border-right:0;border-bottom:1px solid var(--line-soft);padding:18px 22px}
  .hero-metrics li:last-child{border-bottom:0}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
  .num-list li{grid-template-columns:1fr;gap:6px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .section-head{margin-bottom:28px}
}