/* roulang page: index */
:root{
  --primary:#2F5D62;
  --primary-d:#23484C;
  --accent:#C45B3C;
  --moss:#4F7A5A;
  --bg:#F7F3EA;
  --surface:#FFFDF8;
  --sand:#EDE6D8;
  --ink:#1E2A28;
  --ink-2:#5F6B66;
  --ink-3:#8A938E;
  --line:#DED6C8;
  --r-s:10px;
  --r-m:16px;
  --r-l:20px;
  --shadow-1:0 8px 24px rgba(30,42,40,.06);
  --shadow-2:0 18px 48px rgba(30,42,40,.14);
  --sidebar-w:248px;
  --font-body:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-title:"Noto Serif SC", "Songti SC", "SimSun", serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-d);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:700;line-height:1.3;color:var(--ink);}
p{margin:0 0 1.15em;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(47,93,98,.35);outline-offset:2px;border-radius:6px;}

/* ---------- 侧栏导航 ---------- */
.app-sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:60;
  transition:transform .28s ease;
}
.sidebar-inner{display:flex;flex-direction:column;height:100%;padding:26px 18px 20px;}
.brand{display:flex;align-items:center;gap:10px;padding:0 8px 22px;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-d));
  color:#FFFDF8;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-title);font-size:17px;font-weight:700;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-family:var(--font-title);font-size:18px;font-weight:700;color:var(--ink);}
.brand-sub{font-size:12px;color:var(--ink-3);letter-spacing:.02em;}
.nav-label{font-size:12px;color:var(--ink-3);padding:6px 10px 8px;}
.side-nav{display:flex;flex-direction:column;gap:2px;flex:1 1 auto;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;
  border-radius:9px;
  color:var(--ink-2);
  font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.side-nav a i{width:18px;font-size:14px;color:var(--ink-3);transition:color .2s ease;}
.side-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--primary);border-radius:2px;
  transition:height .2s ease;
}
.side-nav a:hover{background:var(--sand);color:var(--ink);}
.side-nav a:hover i{color:var(--primary);}
.side-nav a.active{background:var(--sand);color:var(--primary);font-weight:600;}
.side-nav a.active i{color:var(--primary);}
.side-nav a.active::before{height:22px;}
.side-contact{
  margin-top:18px;padding:16px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-m);
}
.side-contact h4{font-family:var(--font-body);font-size:13px;color:var(--ink-3);font-weight:600;margin-bottom:8px;}
.side-contact p{margin:0 0 6px;font-size:13px;color:var(--ink-2);line-height:1.7;}
.side-contact strong{color:var(--primary-d);font-size:15px;font-family:var(--font-title);}
.menu-close{display:none;}

/* ---------- 移动顶栏 ---------- */
.mobile-bar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:64px;
  background:rgba(255,253,248,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:70;
}
.mobile-bar .brand{padding:0;}
.mobile-bar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:15px;border-radius:8px;}
.mobile-bar .brand-name{font-size:16px;}
.menu-toggle{
  width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);color:var(--primary);font-size:17px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(30,42,40,.45);
  opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:55;
}

/* ---------- 主区域 ---------- */
.app-main{margin-left:var(--sidebar-w);min-height:100vh;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.sec-head{max-width:720px;margin-bottom:44px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);font-weight:600;
  background:var(--sand);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,2.4vw,34px);margin-bottom:14px;}
.sec-head p{color:var(--ink-2);font-size:16px;margin:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;line-height:1.4;
}
.btn i{transition:transform .22s ease;}
.btn-primary{background:var(--primary);color:#FFFDF8;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-d);border-color:var(--primary-d);color:#FFFDF8;}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--sand);color:var(--primary-d);}
.btn-ghost:hover i{transform:translateX(3px);}
.btn-accent{background:var(--accent);color:#FFFDF8;border-color:var(--accent);}
.btn-accent:hover{background:#A9492E;border-color:#A9492E;color:#FFFDF8;}
.btn-block{width:100%;justify-content:center;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:84px 0 76px;
  background:linear-gradient(180deg,rgba(237,230,216,.55),rgba(247,243,234,0) 62%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-80px;top:40px;width:220px;height:220px;
  border:1px solid var(--primary);opacity:.07;transform:rotate(12deg);
  pointer-events:none;
}
.hero h1{
  font-size:clamp(30px,3.6vw,50px);
  line-height:1.28;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{
  font-size:18px;color:var(--ink-2);line-height:1.85;
  margin-bottom:14px;max-width:560px;
}
.hero-note{
  font-size:14px;color:var(--ink-3);margin-bottom:28px;
  display:flex;align-items:center;gap:8px;
}
.hero-note span.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--sand);color:var(--primary-d);
  font-size:13px;border-radius:999px;padding:5px 13px;
}
.hero-media{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  min-height:440px;box-shadow:var(--shadow-2);
}
.hero-media img{width:100%;height:100%;min-height:440px;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(35,72,76,.55),rgba(30,42,40,.72));
}
.hero-stats{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:10px;
}
.hero-stat{
  background:rgba(247,243,234,.14);
  border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:12px 14px;backdrop-filter:blur(4px);
}
.hero-stat b{
  display:block;font-family:var(--font-title);font-size:20px;color:#F7F3EA;line-height:1.3;
}
.hero-stat span{font-size:12px;color:rgba(247,243,234,.82);}

/* ---------- 痛点卡 ---------- */
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.pain-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:26px;box-shadow:var(--shadow-1);transition:all .24s ease;
}
.pain-card:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:0 14px 32px rgba(30,42,40,.1);}
.pain-card:nth-child(2){margin-top:26px;}
.pain-card:nth-child(4){margin-top:26px;}
.pain-num{
  font-family:var(--font-title);font-size:15px;font-weight:700;color:var(--accent);
  margin-bottom:14px;display:inline-block;
}
.pain-card h3{font-size:20px;margin-bottom:10px;}
.pain-card p{color:var(--ink-2);font-size:15px;margin-bottom:14px;}
.pain-tip{
  display:flex;gap:8px;font-size:14px;color:var(--moss);
  background:rgba(79,122,90,.08);border-radius:10px;padding:10px 14px;line-height:1.7;
}
.pain-tip i{margin-top:5px;}

/* ---------- 解决方案 ---------- */
.solution-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.solution-aside{position:sticky;top:40px;}
.solution-aside h2{font-size:clamp(24px,2.4vw,32px);margin-bottom:16px;}
.solution-aside p{color:var(--ink-2);font-size:16px;}
.solution-aside figure{margin:24px 0 0;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);}
.solution-aside img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.sol-list{display:flex;flex-direction:column;gap:16px;}
.sol-item{
  display:flex;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:24px;box-shadow:var(--shadow-1);transition:all .24s ease;
}
.sol-item:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:0 14px 32px rgba(30,42,40,.1);}
.sol-icon{
  flex:0 0 46px;height:46px;border-radius:12px;
  background:var(--sand);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.sol-item h3{font-size:19px;margin-bottom:8px;}
.sol-item p{color:var(--ink-2);font-size:15px;margin-bottom:10px;}
.link-arrow{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow:hover i{transform:translateX(3px);}
.link-arrow i{transition:transform .22s ease;}

/* ---------- 数据带 ---------- */
.metrics{
  position:relative;background:var(--primary-d);color:#F7F3EA;
  padding:76px 0;overflow:hidden;
}
.metrics::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 68px);
  pointer-events:none;
}
.metrics .sec-head h2{color:#F7F3EA;}
.metrics .sec-head p{color:rgba(247,243,234,.78);}
.metrics .sec-eyebrow{background:rgba(247,243,234,.14);color:#F7F3EA;}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:1;}
.metric{border-top:1px solid rgba(255,255,255,.18);padding-top:22px;}
.metric b{
  display:block;font-family:var(--font-title);
  font-size:clamp(30px,3.2vw,44px);color:#E4C67C;line-height:1.15;margin-bottom:8px;
}
.metric span{display:block;font-size:15px;color:#F7F3EA;margin-bottom:6px;}
.metric small{font-size:13px;color:rgba(247,243,234,.68);line-height:1.7;}
.metrics-foot{
  margin-top:38px;font-size:14px;color:rgba(247,243,234,.72);
  border-top:1px solid rgba(255,255,255,.14);padding-top:20px;position:relative;z-index:1;
}

/* ---------- 证言 ---------- */
.voice-wrap{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.voice-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:34px;box-shadow:var(--shadow-1);
}
.voice-main .quote-mark{font-family:var(--font-title);font-size:44px;color:var(--line);line-height:1;margin-bottom:8px;}
.voice-main p{font-size:18px;line-height:1.85;color:var(--ink);}
.voice-person{display:flex;align-items:center;gap:12px;margin-top:22px;}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--primary);color:#FFFDF8;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-title);font-size:16px;
}
.voice-person b{display:block;font-size:15px;font-weight:600;}
.voice-person span{font-size:13px;color:var(--ink-3);}
.voice-side{display:flex;flex-direction:column;gap:18px;}
.voice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:22px;box-shadow:var(--shadow-1);transition:all .24s ease;
}
.voice-card:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);}
.voice-card p{font-size:15px;color:var(--ink-2);margin-bottom:14px;}
.voice-card .voice-person{margin-top:0;}
.voice-card .avatar{width:36px;height:36px;font-size:14px;background:var(--sand);color:var(--primary-d);}

/* ---------- 内容列表（CMS） ---------- */
.news-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.news-feature{
  display:block;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--shadow-1);transition:all .24s ease;color:inherit;
}
.news-feature:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:0 16px 36px rgba(30,42,40,.1);color:inherit;}
.news-feature .thumb{overflow:hidden;aspect-ratio:16/10;}
.news-feature .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease;}
.news-feature:hover .thumb img{transform:scale(1.03);}
.news-body{padding:24px 26px 26px;}
.news-body h3{font-size:21px;margin:12px 0 10px;line-height:1.45;}
.news-body p{color:var(--ink-2);font-size:15px;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:10px;}
.badge{
  display:inline-flex;align-items:center;
  background:var(--sand);color:var(--primary-d);
  font-size:12px;border-radius:999px;padding:4px 12px;font-weight:600;
}
.badge-accent{background:var(--accent);color:#FFFDF8;}
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{
  display:grid;grid-template-columns:132px 1fr;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:16px;box-shadow:var(--shadow-1);transition:all .24s ease;color:inherit;
}
.news-item:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);color:inherit;}
.news-item .thumb{border-radius:10px;overflow:hidden;aspect-ratio:16/10;}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease;}
.news-item:hover .thumb img{transform:scale(1.03);}
.news-item h3{font-size:17px;margin:8px 0 8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{font-size:14px;color:var(--ink-2);margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  grid-column:1/-1;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-l);
  padding:56px 24px;text-align:center;color:var(--ink-2);
}
.empty-state i{font-size:30px;color:var(--line);display:block;margin-bottom:14px;}
.empty-state p{margin-bottom:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-title{
  position:relative;display:flex;align-items:center;
  min-height:56px;padding:14px 56px 14px 8px !important;
  font-size:17px;font-weight:600;color:var(--ink);
  border:0 !important;background:transparent !important;line-height:1.6;
}
.accordion-title:hover{color:var(--primary);}
.accordion-title::before{
  content:"+" !important;
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  float:none !important;margin:0 !important;
  font-size:22px;font-weight:400;color:var(--primary);
  width:auto !important;height:auto !important;
}
.accordion-item.is-active > .accordion-title::before{content:"–" !important;}
.accordion-content{
  background:var(--bg) !important;
  border:0 !important;
  padding:18px 24px !important;
  color:var(--ink-2);font-size:15px;line-height:1.95;
}
.accordion-content p:last-child{margin-bottom:0;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;background:var(--primary-d);color:#F7F3EA;
  padding:72px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.14;
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start;}
.cta-copy h2{color:#F7F3EA;font-size:clamp(24px,2.4vw,34px);margin-bottom:16px;}
.cta-copy p{color:rgba(247,243,234,.8);font-size:16px;margin-bottom:22px;}
.cta-points{display:flex;flex-direction:column;gap:12px;}
.cta-points div{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(247,243,234,.9);}
.cta-points i{color:#E4C67C;margin-top:6px;}
.cta-form{
  background:var(--surface);border-radius:var(--r-l);padding:28px;
  box-shadow:var(--shadow-2);
}
.cta-form h3{font-size:20px;margin-bottom:6px;}
.cta-form .form-note{font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);background:var(--bg);
  border-radius:var(--r-s);padding:12px 14px;color:var(--ink);
  min-height:48px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.8;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,93,98,.16);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}

/* ---------- 页脚 ---------- */
.site-footer{background:#1A2725;color:#F7F3EA;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand-text .brand-name{color:#F7F3EA;}
.footer-brand .brand-text .brand-sub{color:rgba(247,243,234,.6);}
.footer-brand p{font-size:14px;color:rgba(247,243,234,.7);margin:18px 0 0;line-height:1.9;}
.footer-col h4{
  font-family:var(--font-body);font-size:13px;font-weight:600;
  letter-spacing:.08em;color:rgba(247,243,234,.6);margin-bottom:16px;
}
.footer-col a,.footer-col li{display:block;font-size:14px;color:rgba(247,243,234,.85);line-height:2;}
.footer-col a:hover{color:#E4C67C;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:rgba(247,243,234,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sidebar-w:216px;}
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .solution-wrap{gap:36px;}
  .news-item{grid-template-columns:112px 1fr;}
}
@media (max-width:991px){
  .app-sidebar{
    width:86vw;max-width:320px;
    transform:translateX(-104%);
    box-shadow:0 0 40px rgba(30,42,40,.28);
    overflow-y:auto;
  }
  .app-sidebar.is-open{transform:translateX(0);}
  .app-main{margin-left:0;padding-top:64px;}
  .mobile-bar{display:flex;}
  .menu-close{
    display:flex;position:absolute;right:14px;top:16px;
    width:36px;height:36px;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:9px;background:var(--surface);
    color:var(--ink-2);cursor:pointer;
  }
  .sidebar-inner{padding-top:22px;}
  .brand{padding-right:52px;}
  .drawer-mask{display:block;}
  .drawer-mask.is-open{opacity:1;pointer-events:auto;}
  body.drawer-open{overflow:hidden;}
  .hero{padding:56px 0 48px;}
  .hero-media{min-height:260px;margin-top:32px;}
  .hero-media img{min-height:260px;height:280px;}
  .pain-grid{grid-template-columns:1fr;}
  .pain-card:nth-child(2),.pain-card:nth-child(4){margin-top:0;}
  .solution-wrap{grid-template-columns:1fr;gap:28px;}
  .solution-aside{position:static;}
  .metric-grid{grid-template-columns:1fr 1fr;}
  .voice-wrap{grid-template-columns:1fr;}
  .news-wrap{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .hero-actions .btn{flex:1 1 100%;justify-content:center;}
  .news-item{grid-template-columns:1fr;}
  .news-item .thumb{aspect-ratio:16/9;}
  .metric-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .accordion-title{font-size:16px;}
}
@media (max-width:575px){
  .container{padding:0 18px;}
  .section{padding:44px 0;}
  .hero h1{font-size:29px;}
  .hero-stats{grid-template-columns:1fr;}
  .cta-form{padding:22px 18px;}
  .voice-main{padding:24px 20px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#2F5D62;
  --c-primary-dark:#23484C;
  --c-accent:#C45B3C;
  --c-bg:#F7F3EA;
  --c-surface:#FFFDF8;
  --c-sand:#EDE6D8;
  --c-ink:#1E2A28;
  --c-ink-2:#5F6B66;
  --c-ink-3:#8A938E;
  --c-line:#DED6C8;
  --c-green:#4F7A5A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --sh-1:0 8px 24px rgba(30,42,40,.06);
  --sh-2:0 18px 48px rgba(30,42,40,.14);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","STSong",serif;
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;line-height:1.3;letter-spacing:0;color:var(--c-ink)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(47,93,98,.28);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--dark{background:var(--c-primary-dark);color:#F7F3EA}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--c-accent);text-transform:uppercase;font-weight:600;margin-bottom:14px}
.section-title{font-size:clamp(24px,2.4vw,34px);margin-bottom:14px}
.section-lead{color:var(--c-ink-2);font-size:16px;max-width:760px;margin:0}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--c-sand);color:var(--c-primary);font-size:13px;line-height:1.7;font-weight:600}
.badge--accent{background:var(--c-accent);color:#fff}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn i{transition:transform .22s ease}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff}
.btn-primary:hover i{transform:translateX(3px)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:rgba(47,93,98,.07);color:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.btn-ghost:hover i{transform:translateX(3px)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#A9492E;color:#fff}
.btn-block{width:100%;justify-content:center}

/* ===== 侧栏 App Shell ===== */
.side-shell{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--side-w);
  background:#FBF7EF;
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  padding:26px 18px 24px;
  overflow-y:auto;
  z-index:30;
}
.side-brand{display:flex;align-items:center;gap:12px;padding:6px 8px 20px;border-bottom:1px solid var(--c-line);margin-bottom:18px}
.brand-mark{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:19px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.4}
.brand-sub{font-size:12px;color:var(--c-ink-3);line-height:1.6}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:var(--r-sm);
  color:var(--c-ink-2);font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.side-nav a i{width:16px;font-size:14px;color:var(--c-ink-3);transition:color .2s ease}
.side-nav a::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:transparent;transition:background .2s ease;
}
.side-nav a:hover{background:var(--c-sand);color:var(--c-primary)}
.side-nav a:hover i{color:var(--c-primary)}
.side-nav a.active{background:var(--c-sand);color:var(--c-primary);font-weight:600}
.side-nav a.active::before{background:var(--c-primary)}
.side-nav a.active i{color:var(--c-primary)}
.side-contact{
  margin-top:auto;padding:18px;border-radius:14px;
  background:var(--c-surface);border:1px solid var(--c-line);
}
.side-contact h4{font-size:13px;font-family:var(--font-sans);letter-spacing:.08em;color:var(--c-ink-3);margin-bottom:10px;font-weight:600}
.side-contact p{font-size:13px;line-height:1.9;color:var(--c-ink-2);margin:0 0 8px}
.side-contact .tel{font-family:var(--font-serif);font-size:17px;color:var(--c-primary);font-weight:700}

/* ===== 移动端顶栏与抽屉 ===== */
.mobile-topbar{
  display:none;align-items:center;gap:12px;
  position:fixed;top:0;left:0;right:0;height:64px;
  background:#FBF7EF;border-bottom:1px solid var(--c-line);
  padding:0 16px;z-index:40;
}
.hamburger{
  width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;
  background:var(--c-surface);cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.hamburger span{display:block;width:16px;height:2px;background:var(--c-ink);border-radius:2px}
.topbar-brand{font-family:var(--font-serif);font-size:16px;font-weight:700;color:var(--c-ink)}
.topbar-page{margin-left:auto;font-size:13px;color:var(--c-ink-3);max-width:42vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.off-canvas.position-left{
  left:-330px;width:320px;max-width:86vw;
  background:#FBF7EF;z-index:60;padding:20px 16px;
  border-right:1px solid var(--c-line);
}
.off-canvas .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);cursor:pointer;color:var(--c-ink-2);
}
.off-canvas-content.is-open-left{transform:translateX(330px)}
.off-canvas .side-nav a{height:48px;font-size:15px}
.off-canvas .side-contact{margin-top:24px}

.main-area{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}

/* ===== 面包屑 ===== */
.crumb{padding:22px 0 0;font-size:13px;color:var(--c-ink-3)}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb span.sep{margin:0 8px;color:var(--c-line)}
.crumb strong{color:var(--c-ink-2);font-weight:600}

/* ===== 紧凑 Hero ===== */
.hero-compact{position:relative;overflow:hidden;background:var(--c-primary-dark);margin-top:22px;border-radius:var(--r-lg)}
.hero-compact .hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.30;
}
.hero-compact::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(35,72,76,.95) 0%,rgba(35,72,76,.78) 55%,rgba(35,72,76,.55) 100%);
}
.hero-compact .inner{position:relative;z-index:2;padding:56px 48px 60px;color:#F7F3EA}
.hero-compact h1{
  color:#fff;font-size:clamp(28px,3.2vw,44px);
  margin:14px 0 16px;max-width:820px;
}
.hero-compact p{color:rgba(247,243,234,.86);max-width:720px;font-size:16px;margin-bottom:26px}
.hero-compact .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-compact .btn-ghost{color:#F7F3EA;border-color:rgba(247,243,234,.5)}
.hero-compact .btn-ghost:hover{background:rgba(247,243,234,.12);color:#fff;border-color:#F7F3EA}
.hero-tags{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.hero-tags div{font-size:13px;color:rgba(247,243,234,.72)}
.hero-tags strong{display:block;font-family:var(--font-serif);font-size:22px;color:#E6C48A;line-height:1.5}

/* ===== 服务卡片 ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.svc-card{
  position:relative;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.svc-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(47,93,98,.3)}
.svc-num{
  font-family:var(--font-serif);font-size:14px;font-weight:700;
  color:var(--c-accent);letter-spacing:.08em;display:block;margin-bottom:14px;
}
.svc-card h3{font-size:21px;margin-bottom:10px}
.svc-card p{color:var(--c-ink-2);font-size:15px;margin-bottom:16px}
.svc-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.svc-meta span{font-size:12.5px;padding:3px 10px;border-radius:999px;background:var(--c-bg);color:var(--c-ink-2);border:1px solid var(--c-line)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary)}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(3px)}

/* ===== 套餐对比卡 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.plan-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
}
.plan-card.featured{border-color:var(--c-primary);box-shadow:0 16px 40px rgba(47,93,98,.14)}
.plan-card h3{font-size:19px;margin-bottom:6px}
.plan-card .plan-note{font-size:13.5px;color:var(--c-ink-3);margin-bottom:18px}
.plan-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.plan-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--c-ink-2);line-height:1.8}
.plan-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  border-radius:50%;background:var(--c-green);
}
.plan-card .btn{margin-top:auto}

/* ===== 步骤条 ===== */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin-top:44px;border-top:1px solid var(--c-line);padding-top:34px}
.step{padding-right:22px;position:relative}
.step::before{
  content:"";position:absolute;top:-40px;left:0;width:11px;height:11px;
  border-radius:50%;background:var(--c-surface);border:2px solid var(--c-primary);
}
.step span{font-family:var(--font-serif);font-size:13px;color:var(--c-accent);font-weight:700;letter-spacing:.08em}
.step h3{font-size:17px;margin:8px 0 8px}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.85;margin:0}

/* ===== 场景图文 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1);aspect-ratio:16/10;background:var(--c-sand)}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.split-media:hover img{transform:scale(1.03)}
.scene-list{display:flex;flex-direction:column;gap:18px;margin-top:26px}
.scene-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:14px;padding:18px 20px;
  transition:border-color .22s ease,transform .22s ease;
}
.scene-list li:hover{border-color:rgba(47,93,98,.3);transform:translateY(-2px)}
.scene-list i{color:var(--c-accent);font-size:16px;margin-top:6px}
.scene-list strong{display:block;font-size:15.5px;margin-bottom:4px;font-weight:700}
.scene-list p{margin:0;font-size:14px;color:var(--c-ink-2);line-height:1.8}

/* ===== 数据带 ===== */
.stat-band{
  background:var(--c-primary-dark);color:#F7F3EA;
  background-image:linear-gradient(0deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:100% 42px;
  border-radius:var(--r-lg);
  padding:56px 48px;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.stat-grid div{border-left:1px solid rgba(255,255,255,.14);padding-left:22px}
.stat-grid div:first-child{border-left:none;padding-left:0}
.stat-grid strong{display:block;font-family:var(--font-serif);font-size:clamp(28px,3vw,38px);color:#E6C48A;line-height:1.3}
.stat-grid span{font-size:14px;color:rgba(247,243,234,.78);line-height:1.8}
.stat-foot{margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);font-size:14px;color:rgba(247,243,234,.7)}

/* ===== FAQ ===== */
.faq-wrap{max-width:920px;margin:0 auto}
.accordion{border:none;background:transparent;margin:32px 0 0}
.accordion-item{
  border:1px solid var(--c-line);border-radius:14px;
  background:var(--c-surface);margin-bottom:12px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.accordion-item.is-active{border-color:rgba(47,93,98,.35);box-shadow:var(--sh-1)}
.accordion-title{
  border:none;background:transparent;
  min-height:56px;padding:16px 56px 16px 24px;
  font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--c-ink);
  display:flex;align-items:center;
}
.accordion-title:hover{background:rgba(237,230,216,.5);color:var(--c-primary)}
.accordion-title::before{
  right:22px;color:var(--c-primary);font-size:20px;font-weight:400;line-height:1;
}
.accordion-title[aria-expanded="true"]{color:var(--c-primary)}
.accordion-content{
  border:none;border-top:1px solid var(--c-line);
  background:var(--c-bg);padding:18px 24px;
}
.accordion-content p{margin:0;font-size:15px;color:var(--c-ink-2);line-height:1.95}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--c-primary-dark);color:#F7F3EA;
}
.cta-band .cta-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.22;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:52px;padding:56px 48px}
.cta-inner h2{color:#fff;font-size:clamp(23px,2.4vw,32px);margin-bottom:14px}
.cta-inner p{color:rgba(247,243,234,.82);font-size:15px;margin-bottom:0}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:22px}
.cta-points li{font-size:14px;color:rgba(247,243,234,.8);display:flex;gap:10px;align-items:center}
.cta-points i{color:#E6C48A;font-size:13px}
.lead-form{
  background:rgba(255,253,248,.97);border-radius:var(--r-md);
  padding:26px;border:1px solid rgba(255,255,255,.2);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink-2);margin-bottom:7px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;color:var(--c-ink);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:104px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(47,93,98,.16);
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}

/* ===== 页脚 ===== */
.site-footer{background:#1B2A28;color:#F7F3EA;padding:64px 0 28px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-brand .brand-name{color:#fff;font-size:17px}
.footer-brand .brand-sub{color:rgba(247,243,234,.6);font-size:12px;display:block}
.footer-brand p{font-size:14px;color:rgba(247,243,234,.72);line-height:1.9;margin:0;max-width:340px}
.footer-col h4{
  font-family:var(--font-sans);font-size:12.5px;letter-spacing:.14em;
  color:rgba(247,243,234,.55);margin-bottom:14px;font-weight:600;text-transform:uppercase;
}
.footer-col a{display:block;font-size:14.5px;line-height:2.05;color:rgba(247,243,234,.82)}
.footer-col a:hover{color:#E6C48A}
.footer-col ul li{font-size:14.5px;line-height:2.05;color:rgba(247,243,234,.82)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,243,234,.55);
}

/* ===== 响应式 ===== */
@media (min-width:992px) and (max-width:1199px){
  :root{--side-w:216px}
  .side-shell{padding:22px 14px}
  .brand-name{font-size:16px}
  .side-nav a{font-size:14px;height:42px}
}
@media (min-width:992px){
  .off-canvas{display:none !important}
  .mobile-topbar{display:none}
}
@media (max-width:1199px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 0}
  .step{padding-bottom:18px}
}
@media (max-width:991px){
  .main-area{margin-left:0;padding-top:64px}
  .side-shell{display:none}
  .mobile-topbar{display:flex}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .hero-compact{margin-top:16px;border-radius:var(--r-md)}
  .hero-compact .inner{padding:42px 30px 46px}
  .container{padding:0 24px}
  .split{grid-template-columns:1fr;gap:32px}
  .plan-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:42px 30px}
  .stat-band{padding:44px 30px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px}
  .stat-grid div:nth-child(3){border-left:none;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .hero-tags{gap:18px}
  .hero-tags strong{font-size:19px}
}
@media (max-width:575px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{padding-right:0;padding-bottom:22px}
  .step::before{display:none}
  .hero-compact .inner{padding:34px 20px 38px}
  .hero-compact .hero-actions .btn{width:100%;justify-content:center}
  .stat-grid{grid-template-columns:1fr}
  .stat-grid div{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:16px}
  .stat-grid div:first-child{border-top:none;padding-top:0}
  .svc-card,.plan-card{padding:22px}
  .cta-inner{padding:32px 20px}
  .lead-form{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:48px 0 24px;margin-top:56px}
}

/* roulang page: article */
:root{
  --primary:#2F5D62;
  --primary-dark:#23484C;
  --accent:#C45B3C;
  --green:#4F7A5A;
  --bg:#F7F3EA;
  --surface:#FFFDF8;
  --sand:#EDE6D8;
  --ink:#1E2A28;
  --ink-2:#5F6B66;
  --ink-3:#8A938E;
  --line:#DED6C8;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:20px;
  --shadow-card:0 8px 24px rgba(30,42,40,.06);
  --shadow-float:0 18px 44px rgba(30,42,40,.14);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --serif:"Noto Serif SC","Songti SC","PingFang SC",serif;
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);margin:0;line-height:1.32;font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(47,93,98,.35);outline-offset:2px;border-radius:6px}

/* ===== 基础组件 ===== */
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn i{transition:transform .22s ease}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(35,72,76,.22)}
.btn-primary:hover i.fa-arrow-right{transform:translateX(3px)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--sand);color:var(--primary-dark)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#a94a2f;color:#fff;transform:translateY(-2px)}
.btn-block{width:100%;justify-content:center}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--sand);color:var(--primary);
  font-size:13px;line-height:1.6;font-weight:600;
}
.badge-accent{background:var(--accent);color:#fff}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;
}

/* ===== 左侧 App Shell 导航 ===== */
.side-panel{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:40;
  padding:26px 0 20px;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;padding:0 22px 22px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:19px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-name{font-family:var(--serif);font-size:16px;font-weight:700;color:var(--ink)}
.brand-sub{font-size:12px;color:var(--ink-3);letter-spacing:.02em}
.side-nav{display:flex;flex-direction:column;margin-top:6px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 22px;font-size:15px;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-nav a i{width:16px;font-size:14px;color:var(--ink-3);transition:color .2s ease}
.side-nav a:hover{background:var(--sand);color:var(--ink)}
.side-nav a:hover i{color:var(--primary)}
.side-nav a.active{background:var(--sand);color:var(--primary);font-weight:600;border-left-color:var(--primary)}
.side-nav a.active i{color:var(--primary)}
.side-contact{
  margin-top:auto;padding:20px 22px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-2);line-height:1.8;
}
.side-contact h4{font-size:13px;color:var(--ink);margin-bottom:8px;font-family:var(--sans)}
.side-contact a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-weight:600;font-size:13px}

/* ===== 移动端顶栏与抽屉 ===== */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:50;
}
.mobile-bar .brand{padding:0;gap:10px}
.mobile-bar .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:17px}
.mobile-current{font-size:13px;color:var(--ink-3);margin-left:auto;margin-right:12px;white-space:nowrap}
.menu-toggle{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);color:var(--primary);cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:16px;
  transition:background .2s ease,border-color .2s ease;
}
.menu-toggle:hover{background:var(--sand);border-color:var(--primary)}
.drawer{
  position:fixed;top:0;left:0;width:86vw;max-width:320px;height:100%;
  background:var(--surface);z-index:70;transform:translateX(-102%);
  transition:transform .28s ease;display:flex;flex-direction:column;
  overflow-y:auto;padding:18px 0 24px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 18px 16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-2);cursor:pointer;
}
.drawer-close:hover{background:var(--sand);color:var(--primary-dark)}
.drawer .side-nav{margin-top:10px}
.drawer .side-nav a{height:48px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(30,42,40,.42);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:65;
}
.drawer-mask.show{opacity:1;visibility:visible}

/* ===== 主区域 ===== */
.main-area{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.main-area > .page-body{flex:1}

/* ===== 面包屑与文章头 ===== */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);
  padding:30px 0 0;
}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:var(--line)}
.crumbs .current{color:var(--ink-2);max-width:min(560px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{padding:26px 0 34px;border-bottom:1px solid var(--line)}
.article-title{
  font-size:clamp(30px,3.4vw,44px);
  line-height:1.3;margin:14px 0 18px;color:var(--ink);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:13.5px;color:var(--ink-3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--primary);font-size:13px}
.article-meta b{color:var(--ink-2)}

/* ===== 文章布局 ===== */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:52px;align-items:start;padding:44px 0 72px;
}
.article-main{min-width:0}
.cover-figure{margin:0 0 34px}
.cover-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.cover-figure figcaption{font-size:13px;color:var(--ink-3);margin-top:10px;text-align:center}

.article-body{font-size:17px;line-height:1.98;color:var(--ink);max-width:820px}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:clamp(24px,2.4vw,30px);line-height:1.36;
  margin:2.4em 0 .85em;padding-left:16px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:21px;line-height:1.4;margin:1.8em 0 .6em}
.article-body h4{font-size:18px;margin:1.5em 0 .5em;color:var(--ink-2)}
.article-body a{font-weight:600;border-bottom:1px solid rgba(47,93,98,.35)}
.article-body a:hover{border-bottom-color:var(--primary-dark)}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em;line-height:1.9}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:1.7em 0;padding:18px 24px;background:var(--sand);
  border-left:4px solid var(--primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);margin:1.6em 0;border:1px solid var(--line)}
.article-body figure{margin:1.7em 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.7em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body thead th{background:var(--sand);color:var(--ink);font-weight:700;white-space:nowrap}
.article-body tbody tr:nth-child(even){background:rgba(237,230,216,.4)}
.article-body pre{
  background:#1E2A28;color:#F7F3EA;padding:18px 20px;margin:1.6em 0;
  border-radius:var(--radius-sm);overflow-x:auto;font-size:14px;line-height:1.75;
}
.article-body code{
  background:var(--sand);color:var(--primary-dark);
  padding:2px 7px;border-radius:6px;font-size:.9em;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* 空态 */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-card);max-width:820px;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;
  background:var(--sand);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:22px}

/* ===== 侧栏 ===== */
.article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:32px}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-card);
}
.aside-card h3{
  font-size:15px;font-family:var(--sans);color:var(--ink);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.aside-card h3 i{color:var(--primary);font-size:13px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc-link{
  display:block;font-size:14px;line-height:1.7;color:var(--ink-2);
  padding:6px 10px;border-left:2px solid var(--line);border-radius:0 8px 8px 0;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-link:hover{background:var(--sand);color:var(--primary);border-left-color:var(--primary)}
.toc-sub{padding-left:22px;font-size:13px;color:var(--ink-3)}
.rec-list{display:flex;flex-direction:column;gap:14px}
.rec-item{display:flex;gap:12px;align-items:flex-start}
.rec-item img{width:64px;height:48px;flex:0 0 64px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}
.rec-item a{font-size:14px;line-height:1.6;color:var(--ink);display:block;margin-bottom:4px}
.rec-item a:hover{color:var(--primary)}
.rec-item span{font-size:12px;color:var(--ink-3)}
.aside-links{display:flex;flex-direction:column;gap:10px}
.aside-links a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--ink);padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface);transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.aside-links a:hover{border-color:rgba(47,93,98,.35);background:var(--sand);transform:translateY(-2px)}

/* ===== 文末区块 ===== */
.article-foot{display:flex;flex-direction:column;gap:28px;margin-top:44px;max-width:820px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row .tag-label{font-size:13px;color:var(--ink-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;
  border-radius:999px;background:var(--sand);color:var(--primary);
  font-size:13px;font-weight:600;transition:background .2s ease,color .2s ease;
}
.tag:hover{background:var(--primary);color:#fff}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pager a{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;display:flex;flex-direction:column;gap:6px;color:var(--ink);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.pager a:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:var(--shadow-card);color:var(--ink)}
.pager .pager-label{font-size:12px;color:var(--ink-3);letter-spacing:.04em}
.pager .pager-title{font-size:15px;font-weight:600;line-height:1.6}
.pager .pager-next{text-align:right;align-items:flex-end}

.section-block{padding:0 0 72px}
.section-head{margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.2vw,28px);margin-top:10px}
.section-head p{color:var(--ink-2);font-size:15px;margin-top:10px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:var(--shadow-float)}
.post-card .thumb{overflow:hidden;aspect-ratio:16/10}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-card h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card h3 a{color:var(--ink)}
.post-card h3 a:hover{color:var(--primary)}
.post-card p{
  font-size:14px;color:var(--ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.post-card .card-foot .link{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.post-card:hover .card-foot .link i{transform:translateX(3px)}
.post-card .card-foot .link i{transition:transform .22s ease}

/* ===== CTA ===== */
.cta-band{
  position:relative;background:var(--primary-dark);color:#F7F3EA;
  padding:76px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band > .container{position:relative;z-index:1}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cta-copy .eyebrow{color:#E9C9A8}
.cta-copy h2{font-size:clamp(24px,2.6vw,32px);color:#fff;margin:12px 0 16px}
.cta-copy p{color:rgba(247,243,234,.82);font-size:15.5px;line-height:1.9}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(247,243,234,.9)}
.cta-list i{color:#E9C9A8;margin-top:6px;font-size:13px}
.cta-form{
  background:var(--surface);border-radius:var(--radius-lg);padding:28px;
  box-shadow:var(--shadow-float);display:flex;flex-direction:column;gap:16px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;color:var(--ink);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,93,98,.18);
}

/* ===== 页脚 ===== */
.site-footer{background:#1E2A28;color:#F7F3EA;padding:64px 0 28px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{padding:0 0 16px;color:#F7F3EA}
.footer-brand .brand-mark{background:#F7F3EA;color:var(--primary-dark)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(247,243,234,.55)}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(247,243,234,.72);max-width:340px}
.footer-col h4{
  font-family:var(--sans);font-size:13px;letter-spacing:.1em;
  color:rgba(247,243,234,.55);margin-bottom:16px;font-weight:700;
}
.footer-col a{display:block;font-size:14.5px;color:rgba(247,243,234,.82);line-height:2;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-col ul li{font-size:14.5px;color:rgba(247,243,234,.82);line-height:2}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(247,243,234,.55);
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  :root{--side-w:216px}
  .side-nav a{font-size:14px;height:42px;padding:0 18px}
  .brand{padding:0 18px 20px}
  .brand-name{font-size:15px}
  .side-contact{padding:18px 18px 0;font-size:12.5px}
  .container{padding:0 24px}
  .article-layout{grid-template-columns:minmax(0,1fr) 288px;gap:36px}
}
@media (max-width:991px){
  .side-panel{display:none}
  .mobile-bar{display:flex}
  .main-area{margin-left:0;padding-top:64px}
  .container{padding:0 24px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding:36px 0 56px}
  .article-aside{position:static;order:2}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:60px 0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .crumbs{padding-top:22px;font-size:12.5px}
  .crumbs .current{max-width:100%;white-space:normal}
  .article-head{padding:20px 0 26px}
  .article-body{font-size:16.5px;line-height:1.95}
  .article-body h2{margin-top:2em}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .pager{grid-template-columns:1fr}
  .pager .pager-next{text-align:left;align-items:flex-start}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 24px}
  .section-block{padding-bottom:52px}
}
@media (max-width:575px){
  .mobile-current{display:none}
  .cta-form{padding:22px 18px}
  .aside-card{padding:18px}
  .empty-state{padding:40px 20px}
}

/* roulang page: category2 */
:root{
  --primary:#2F5D62;
  --primary-dark:#23484C;
  --primary-soft:rgba(47,93,98,.10);
  --accent:#C45B3C;
  --accent-soft:rgba(196,91,60,.12);
  --paper:#F7F3EA;
  --surface:#FFFDF8;
  --sand:#EDE6D8;
  --ink:#1E2A28;
  --ink-2:#5F6B66;
  --ink-3:#8A938E;
  --line:#DED6C8;
  --green:#4F7A5A;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:20px;
  --shadow-card:0 8px 24px rgba(30,42,40,.06);
  --shadow-pop:0 18px 48px rgba(30,42,40,.14);
  --sidebar-w:248px;
  --sidebar-w-sm:216px;
  --font-sans:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif:"Noto Serif SC", "Songti SC", Georgia, serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);margin:0;line-height:1.3;letter-spacing:0;font-weight:600;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(47,93,98,.28);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 侧边导航 ============ */
.side-nav{
  display:none;
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:60;
  flex-direction:column;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:26px 18px 20px;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:#FFFDF8;
  border-radius:12px;
  font-family:var(--font-serif);
  font-size:20px;
  line-height:1;
}
.brand-text{display:flex;flex-direction:column;line-height:1.35;}
.brand-name{font-family:var(--font-serif);font-size:18px;color:var(--ink);font-weight:600;}
.brand-sub{font-size:12.5px;color:var(--ink-3);}
.side-nav .brand{padding:0 8px 20px;border-bottom:1px solid var(--line);margin-bottom:18px;}
.side-label{font-size:12px;color:var(--ink-3);padding:0 10px;margin-bottom:8px;letter-spacing:.06em;}
.side-nav nav,.side-nav .nav-links{display:flex;flex-direction:column;gap:4px;}
.side-nav nav a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  min-height:44px;
  padding:9px 12px 9px 14px;
  border-radius:10px;
  color:var(--ink-2);
  font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.side-nav nav a i{width:16px;font-size:14px;color:var(--ink-3);transition:color .2s ease;}
.side-nav nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--primary);border-radius:2px;transition:height .2s ease;
}
.side-nav nav a:hover{background:var(--sand);color:var(--ink);}
.side-nav nav a:hover i{color:var(--primary);}
.side-nav nav a.active{background:var(--sand);color:var(--primary);font-weight:600;}
.side-nav nav a.active::before{height:22px;}
.side-nav nav a.active i{color:var(--primary);}
.side-contact{
  margin-top:auto;padding:16px;border-radius:var(--radius);
  background:var(--paper);border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);line-height:1.8;
}
.side-contact strong{display:block;font-size:14px;color:var(--ink);margin-bottom:6px;font-weight:600;}
.side-contact a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13.5px;font-weight:600;}
.side-contact a i{font-size:12px;}

/* ============ 顶部移动栏 ============ */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  padding:0 18px;
  background:rgba(255,253,248,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.topbar-title{font-family:var(--font-serif);font-size:16px;color:var(--ink);}
.hamburger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:var(--sand);border:1px solid var(--line);border-radius:12px;
  color:var(--primary);font-size:17px;cursor:pointer;
}
.drawer{
  position:fixed;top:0;left:0;bottom:0;z-index:90;
  width:86vw;max-width:320px;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:22px 18px;
  transform:translateX(-102%);
  transition:transform .28s ease;
  overflow-y:auto;
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink-2);cursor:pointer;
}
.drawer nav{display:flex;flex-direction:column;gap:4px;margin-top:8px;}
.drawer nav a{
  display:flex;align-items:center;gap:10px;min-height:48px;padding:10px 12px;
  border-radius:10px;color:var(--ink-2);font-size:15.5px;
}
.drawer nav a i{width:16px;color:var(--ink-3);}
.drawer nav a.active{background:var(--sand);color:var(--primary);font-weight:600;}
.drawer nav a.active i{color:var(--primary);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(30,42,40,.34);
  opacity:0;visibility:hidden;transition:opacity .28s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ============ 主区域 ============ */
.main-area{margin-left:0;padding-top:64px;min-height:100vh;}

/* ============ 通用区块 ============ */
.section{padding:64px 0;}
.section-tight{padding:44px 0;}
.section-sand{background:var(--sand);}
.section-paper{background:var(--paper);}
.section-dark{background:var(--primary-dark);color:#F1EDE3;}
.section-dark h2,.section-dark h3{color:#FFFDF8;}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;padding:5px 14px;margin-bottom:16px;
  font-weight:600;
}
.section h2{font-size:clamp(24px,2.4vw,32px);margin-bottom:14px;}
.section .lead{color:var(--ink-2);font-size:16.5px;margin:0;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn i{font-size:13px;transition:transform .22s ease;}
.btn-primary{background:var(--primary);color:#FFFDF8;}
.btn-primary:hover{background:var(--primary-dark);color:#FFFDF8;}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);}
.btn-ghost:hover i{transform:translateX(3px);}
.btn-accent{background:var(--accent);color:#FFFDF8;}
.btn-accent:hover{background:#A94A2E;color:#FFFDF8;}
.btn-light{background:#FFFDF8;color:var(--primary-dark);}
.btn-light:hover{background:var(--sand);color:var(--primary-dark);}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 面包屑 ============ */
.crumbs{font-size:13.5px;color:var(--ink-3);padding:18px 0 0;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs span{margin:0 8px;color:var(--line);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background-image:linear-gradient(100deg, rgba(35,72,76,.94) 0%, rgba(35,72,76,.80) 52%, rgba(35,72,76,.58) 100%), url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#F1EDE3;
  padding:52px 44px;
  margin-top:20px;
}
.page-hero::after{
  content:"";position:absolute;right:-40px;bottom:-40px;
  width:220px;height:220px;border:1px solid rgba(255,255,255,.10);
  border-radius:26px;transform:rotate(12deg);
}
.page-hero .eyebrow{background:rgba(255,255,255,.14);color:#F1EDE3;}
.page-hero h1{
  color:#FFFDF8;
  font-size:clamp(28px,3.2vw,44px);
  margin-bottom:16px;
  max-width:820px;
}
.page-hero p{
  color:rgba(241,237,227,.88);
  max-width:720px;
  font-size:16.5px;
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:2;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  color:#F1EDE3;font-size:13px;
  border-radius:999px;padding:6px 14px;
}
.page-hero .btn-row{position:relative;z-index:2;}

/* ============ 两栏：sticky 子导航 + 内容 ============ */
.split{display:grid;grid-template-columns:1fr;gap:32px;}
.side-sticky{align-self:start;}
.side-sticky .sticky-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-card);
  padding:22px;
}
.side-sticky h3{font-size:16px;margin-bottom:14px;}
.anchor-list{display:flex;flex-direction:column;gap:2px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:10px;
  color:var(--ink-2);font-size:14.5px;
  border-left:3px solid transparent;
}
.anchor-list a:hover{background:var(--paper);color:var(--primary);border-left-color:var(--primary);}
.sticky-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-2);}
.sticky-note strong{color:var(--ink);display:block;margin-bottom:4px;font-size:14px;}

.prose h3{font-size:21px;margin:0 0 12px;}
.prose p{color:var(--ink-2);}
.prose .sub-block{margin-bottom:34px;}
.prose .sub-block:last-child{margin-bottom:0;}
.prose img{border-radius:var(--radius);border:1px solid var(--line);margin:8px 0 14px;width:100%;aspect-ratio:16/10;}

/* ============ 统计带 ============ */
.stats-band{
  background:var(--primary-dark);color:#F1EDE3;
  border-radius:var(--radius-lg);
  padding:40px 32px;
  background-image:linear-gradient(rgba(35,72,76,.94),rgba(35,72,76,.94)),repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 44px);
}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.stat-item{border-left:1px solid rgba(255,255,255,.14);padding-left:18px;}
.stat-num{font-family:var(--font-serif);font-size:clamp(26px,3vw,38px);color:#E4C98A;line-height:1.15;}
.stat-label{font-size:14px;color:rgba(241,237,227,.82);margin-top:6px;}
.stats-note{margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:14px;color:rgba(241,237,227,.78);}

/* ============ 卡片 ============ */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  padding:26px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  height:100%;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-pop);border-color:rgba(47,93,98,.30);}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px;}
.card-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--sand);
  color:var(--primary);font-family:var(--font-serif);font-size:15px;margin-bottom:14px;
}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;}
.link-arrow i{font-size:12px;transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(3px);}

.grid-2{display:grid;grid-template-columns:1fr;gap:22px;}
.grid-3{display:grid;grid-template-columns:1fr;gap:22px;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:6px;}
.tl-item{position:relative;padding:0 0 30px 46px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:15px;top:38px;bottom:-4px;width:1px;background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-dot{
  position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:10px;
  background:var(--surface);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:14px;color:var(--primary);
}
.tl-item h3{font-size:18px;margin-bottom:8px;}
.tl-item p{color:var(--ink-2);font-size:15.5px;margin:0;}
.tl-meta{display:inline-block;font-size:12.5px;color:var(--ink-3);background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:2px 10px;margin-bottom:8px;}

/* ============ 对比卡 ============ */
.compare{display:grid;grid-template-columns:1fr;gap:22px;}
.compare-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
}
.compare-card.featured{border-color:rgba(47,93,98,.45);box-shadow:var(--shadow-pop);}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px;}
.compare-head h3{font-size:20px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--sand);color:var(--primary);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;
}
.badge-accent{background:var(--accent);color:#FFFDF8;}
.compare-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:10px;margin:0 0 20px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);}
.check-list li i{color:var(--green);font-size:13px;margin-top:7px;flex:0 0 14px;}
.compare-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.compare-foot span{font-size:13.5px;color:var(--ink-3);}

/* ============ 交付清单 ============ */
.deliver{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
.deliver img{border-radius:var(--radius);border:1px solid var(--line);aspect-ratio:16/10;width:100%;}
.plain-list{display:flex;flex-direction:column;gap:14px;}
.plain-list li{display:flex;gap:12px;font-size:15.5px;color:var(--ink-2);}
.plain-list li i{color:var(--primary);font-size:14px;margin-top:7px;flex:0 0 16px;}
.plain-list strong{color:var(--ink);font-weight:600;}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 4px;background:transparent;border:0;
  text-align:left;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--ink);
  font-family:var(--font-serif);line-height:1.5;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;transition:transform .22s ease;}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-a{padding:0 24px 20px;background:var(--paper);border-radius:0 0 var(--radius-sm) var(--radius-sm);}
.faq-a p{margin:0;color:var(--ink-2);font-size:15.5px;padding-top:4px;}

/* ============ CTA / 表单 ============ */
.cta{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  background-image:linear-gradient(100deg,rgba(35,72,76,.96),rgba(35,72,76,.86)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  color:#F1EDE3;padding:44px 36px;
}
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.cta h2{color:#FFFDF8;font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.cta p{color:rgba(241,237,227,.85);margin-bottom:20px;}
.cta-points{display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(241,237,227,.86);}
.cta-points li i{color:#E4C98A;font-size:13px;margin-top:7px;}
.form-card{background:rgba(255,253,248,.97);border-radius:var(--radius);padding:26px;border:1px solid rgba(255,255,255,.2);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px;}
.field input,.field textarea,.field select{
  width:100%;min-height:48px;padding:11px 14px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface);color:var(--ink);font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,93,98,.16);
}
.form-note{font-size:12.5px;color:var(--ink-3);margin:12px 0 0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:#F1EDE3;padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.14);}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#FFFDF8;}
.footer-brand .brand-name{color:#FFFDF8;font-size:18px;}
.footer-brand .brand-sub{color:rgba(241,237,227,.62);}
.footer-brand p{margin-top:16px;font-size:14.5px;color:rgba(241,237,227,.75);max-width:340px;}
.footer-col h4{color:#FFFDF8;font-size:13.5px;letter-spacing:.06em;margin-bottom:14px;font-family:var(--font-sans);}
.footer-col a,.footer-col li{display:block;color:rgba(241,237,227,.78);font-size:14.5px;line-height:2;}
.footer-col a:hover{color:#FFFDF8;}
.footer-col ul li{line-height:2;}
.footer-bottom{display:flex;flex-direction:column;gap:8px;padding-top:20px;font-size:13px;color:rgba(241,237,227,.62);}

/* ============ 响应式 ============ */
@media (min-width:576px){
  .stats-grid{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:768px){
  .container{padding:0 28px;}
  .grid-2{grid-template-columns:repeat(2,1fr);}
  .compare{grid-template-columns:repeat(2,1fr);}
  .page-hero{padding:58px 44px;}
  .section{padding:72px 0;}
}
@media (min-width:992px){
  .topbar{display:none;}
  .side-nav{display:flex;width:var(--sidebar-w-sm);}
  .main-area{margin-left:var(--sidebar-w-sm);padding-top:0;}
  .container{padding:0 28px;}
  .split{grid-template-columns:250px 1fr;gap:36px;}
  .side-sticky{position:sticky;top:28px;}
  .grid-3{grid-template-columns:repeat(3,1fr);}
  .compare{grid-template-columns:repeat(3,1fr);}
  .deliver{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-grid{grid-template-columns:1fr 1fr;align-items:center;gap:40px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;}
  .footer-bottom{flex-direction:row;justify-content:space-between;}
  .stats-grid{grid-template-columns:repeat(4,1fr);}
  .page-hero{padding:60px 52px;}
  .faq-a{padding-left:32px;padding-right:32px;}
}
@media (min-width:1200px){
  .side-nav{width:var(--sidebar-w);}
  .main-area{margin-left:var(--sidebar-w);}
  .container{padding:0 32px;}
  .section{padding:88px 0;}
  .section-tight{padding:56px 0;}
  .split{grid-template-columns:262px 1fr;gap:44px;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .page-hero{padding:36px 22px;border-radius:var(--radius);}
  .card{padding:20px;}
  .cta{padding:32px 22px;}
  .form-card{padding:20px;}
  .stats-band{padding:28px 20px;}
}

/* roulang page: category3 */
:root{
  --primary:#2F5D62;
  --primary-dark:#23484C;
  --accent:#C45B3C;
  --bg:#F7F3EA;
  --surface:#FFFDF8;
  --sand:#EDE6D8;
  --ink:#1E2A28;
  --ink-2:#5F6B66;
  --ink-3:#8A938E;
  --line:#DED6C8;
  --green:#4F7A5A;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:20px;
  --shadow-1:0 8px 24px rgba(30,42,40,.06);
  --shadow-2:0 18px 40px rgba(30,42,40,.12);
  --sidebar-w:248px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","STSong",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.32;letter-spacing:0;font-family:var(--font-serif)}
h1{font-size:clamp(30px,3.4vw,44px)}
h2{font-size:clamp(24px,2.4vw,32px)}
h3{font-size:20px}
p{margin:0 0 1.15em}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
:focus-visible{outline:3px solid rgba(47,93,98,.25);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--line);
  padding:26px 18px 22px;display:flex;flex-direction:column;gap:22px;
  overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:19px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.35}
.brand-name{font-size:17px;font-weight:700;color:var(--ink)}
.brand-sub{font-size:12px;color:var(--ink-3)}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:10px;min-height:44px;
  padding:0 12px 0 14px;border-radius:10px;color:var(--ink-2);font-size:15px;transition:.2s ease;
}
.side-nav a i{width:16px;text-align:center;font-size:14px;color:var(--ink-3);transition:color .2s ease}
.side-nav a::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:3px;background:transparent;transition:.2s ease;
}
.side-nav a:hover{background:var(--sand);color:var(--ink)}
.side-nav a:hover i{color:var(--primary)}
.side-nav a.active{background:rgba(47,93,98,.09);color:var(--primary);font-weight:600}
.side-nav a.active i{color:var(--primary)}
.side-nav a.active::before{background:var(--primary)}
.side-foot{
  margin-top:auto;background:var(--sand);border-radius:14px;padding:16px;font-size:13.5px;line-height:1.85;color:var(--ink-2);
}
.side-foot strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px}
.side-foot a{display:inline-block;margin-top:8px;font-weight:600}

/* ---------- 移动顶栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  background:rgba(255,253,248,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-title{font-size:14.5px;color:var(--ink-2);font-weight:600}
.hamburger{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:17px;background:var(--surface);
}
.hamburger:hover{background:var(--sand)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:86vw;max-width:320px;background:var(--surface);z-index:90;
  transform:translateX(-102%);transition:transform .26s ease;padding:20px 18px 24px;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;box-shadow:var(--shadow-2);
}
body.drawer-open .drawer{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);color:var(--ink-2);display:flex;align-items:center;justify-content:center}
.drawer .side-nav a{min-height:48px}
.drawer-mask{position:fixed;inset:0;background:rgba(30,42,40,.45);opacity:0;visibility:hidden;transition:.26s ease;z-index:80}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}

/* ---------- 主区域 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;background:var(--bg)}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;
  color:var(--primary);background:rgba(47,93,98,.08);border-radius:999px;padding:6px 14px;margin-bottom:18px;font-weight:600;
}
.eyebrow.on-dark{background:rgba(255,255,255,.14);color:#F7F3EA}
.lead{color:var(--ink-2);font-size:16.5px;max-width:720px}
.on-dark-lead{color:rgba(247,243,234,.86)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  min-height:340px;display:flex;align-items:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(35,72,76,.95) 0%,rgba(47,93,98,.84) 62%,rgba(35,72,76,.78) 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-40px;top:-40px;width:280px;height:280px;border:1px solid rgba(255,255,255,.12);
  border-radius:28px;transform:rotate(18deg);opacity:.6;
}
.hero-inner{position:relative;z-index:2;width:100%;padding:56px 0}
.page-hero h1{color:#fff;max-width:820px}
.page-hero p{color:rgba(247,243,234,.88);max-width:700px;margin:18px 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.hero-stat{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:14px;
  padding:14px 20px;min-width:168px;
}
.hero-stat strong{display:block;font-family:var(--font-serif);font-size:24px;color:#F7F3EA;line-height:1.3}
.hero-stat span{font-size:13px;color:rgba(247,243,234,.78)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;border-radius:var(--radius-s);
  padding:12px 22px;font-size:15.5px;font-weight:600;line-height:1.4;
  transition:.22s ease;border:1px solid transparent;white-space:nowrap;
}
.btn i{transition:transform .22s ease;font-size:13px}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}
.btn-primary:hover i{transform:translateX(3px)}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:#a94a2f;border-color:#a94a2f;color:#fff}
.btn-accent:hover i{transform:translateX(3px)}
.btn-ghost{background:transparent;color:#F7F3EA;border-color:rgba(247,243,234,.5)}
.btn-ghost:hover{background:rgba(247,243,234,.12);color:#fff;border-color:rgba(247,243,234,.8)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:rgba(47,93,98,.08);color:var(--primary-dark);border-color:var(--primary-dark)}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;
  font-size:12.5px;font-weight:600;background:var(--sand);color:var(--primary);
}
.badge-accent{background:var(--accent);color:#fff}
.badge-green{background:rgba(79,122,90,.14);color:var(--green)}

/* ---------- 筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.chip{
  border:1px solid var(--line);background:var(--surface);border-radius:999px;
  padding:8px 18px;font-size:14.5px;color:var(--ink-2);transition:.2s ease;
}
.chip:hover{border-color:rgba(47,93,98,.35);color:var(--primary);background:rgba(47,93,98,.05)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* ---------- 案例卡 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.case-card{
  position:relative;display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.case-card:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:var(--shadow-2)}
.case-card.is-hidden{display:none}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--sand)}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.case-card:hover .case-thumb img{transform:scale(1.03)}
.case-thumb .badge{position:absolute;left:14px;top:14px;background:rgba(255,253,248,.94);color:var(--primary-dark)}
.case-body{padding:26px;display:flex;flex-direction:column;gap:14px;flex:1}
.case-body h3{font-family:var(--font-sans);font-size:19px;font-weight:700;line-height:1.5}
.case-body p{color:var(--ink-2);font-size:15.5px;margin:0}
.case-metrics{display:flex;gap:26px;flex-wrap:wrap;padding-top:16px;border-top:1px dashed var(--line)}
.case-metric strong{display:block;font-family:var(--font-serif);font-size:22px;color:var(--primary-dark);line-height:1.3}
.case-metric span{font-size:13px;color:var(--ink-3)}
.case-link{margin-top:auto;font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.case-link i{font-size:12px;transition:transform .22s ease}
.case-link:hover i{transform:translateX(3px)}

/* ---------- 深色证言带 ---------- */
.band{
  position:relative;color:#F7F3EA;background:var(--primary-dark);overflow:hidden;
  padding:80px 0;
}
.band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 74px);
  opacity:.7;
}
.band .container{position:relative;z-index:2}
.band h2{color:#fff}
.quote-main{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-l);
  padding:34px;margin-top:34px;
}
.quote-main .mark{font-family:var(--font-serif);font-size:44px;line-height:1;color:var(--accent);display:block;margin-bottom:8px}
.quote-main blockquote{margin:0;font-size:18px;line-height:1.95;color:rgba(247,243,234,.94)}
.quote-main .who{margin-top:22px;display:flex;align-items:center;gap:12px;font-size:14px;color:rgba(247,243,234,.75)}
.quote-main .who strong{color:#fff;font-size:15px;display:block}
.quote-sub{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px}
.quote-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-m);
  padding:22px;font-size:14.5px;line-height:1.85;color:rgba(247,243,234,.86);
}
.quote-card strong{display:block;color:#fff;font-size:14.5px;margin-top:12px}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:28px 24px;box-shadow:var(--shadow-1);transition:.24s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:var(--shadow-2)}
.step-no{
  width:36px;height:36px;border-radius:10px;background:rgba(47,93,98,.1);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:16px;font-weight:700;margin-bottom:16px;
}
.step h3{font-family:var(--font-sans);font-size:17.5px;font-weight:700;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--ink-2);margin:0}

/* ---------- FAQ ---------- */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 26px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  font-family:var(--font-sans);transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--sand);color:var(--primary-dark)}
.faq-q .sign{
  flex:0 0 30px;width:30px;height:30px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:15px;transition:.24s ease;
}
.faq-item.is-open .faq-q{color:var(--primary-dark)}
.faq-item.is-open .faq-q .sign{background:var(--primary);border-color:var(--primary);color:#fff;transform:rotate(180deg)}
.faq-a{display:none;background:var(--bg);padding:18px 26px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.95}
.faq-item.is-open .faq-a{display:block}
.faq-a p{margin:0}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;color:#F7F3EA;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.cta::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(35,72,76,.96),rgba(47,93,98,.86))}
.cta .container{position:relative;z-index:2;padding-top:76px;padding-bottom:76px}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.cta h2{color:#fff;margin-bottom:16px}
.cta p{color:rgba(247,243,234,.85);font-size:16px}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(247,243,234,.88)}
.cta-points i{color:var(--accent);margin-top:7px;font-size:12px}
.form-card{
  background:var(--surface);border-radius:var(--radius-l);padding:30px;box-shadow:var(--shadow-2);color:var(--ink);
}
.form-card h3{font-family:var(--font-sans);font-size:19px;font-weight:700;margin-bottom:6px}
.form-card > p{font-size:14px;color:var(--ink-2);margin-bottom:20px}
.field{margin-bottom:16px;display:flex;flex-direction:column;gap:7px}
.field label{font-size:14px;font-weight:600;color:var(--ink-2)}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-s);background:#fff;
  padding:12px 14px;min-height:48px;font-size:15px;transition:.2s ease;color:var(--ink);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,93,98,.16);
}
.form-card .btn{width:100%;justify-content:center;margin-top:4px}
.form-note{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-dark);color:#F7F3EA;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:rgba(247,243,234,.6)}
.site-footer .brand-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2)}
.footer-brand p{margin-top:18px;font-size:14.5px;color:rgba(247,243,234,.72);line-height:1.9}
.footer-col h4{
  font-family:var(--font-sans);font-size:13px;letter-spacing:.08em;color:rgba(247,243,234,.62);
  margin-bottom:16px;font-weight:700;
}
.footer-col a,.footer-col li{display:block;color:rgba(247,243,234,.86);font-size:14.5px;line-height:2;transition:color .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(247,243,234,.6);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px){
  .topbar,.drawer,.drawer-mask{display:none}
}
@media (max-width:1199px){
  :root{--sidebar-w:216px}
  .side-nav a{font-size:14px;min-height:42px}
  .brand-name{font-size:16px}
  .container{padding:0 24px}
  .section{padding:64px 0}
  .cta-grid{gap:34px}
  .quote-sub{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:64px}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .page-hero{min-height:300px}
  .hero-inner{padding:44px 0}
  .case-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .quote-sub{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:44px 0}
  .section-head{margin-bottom:30px}
  .hero-stats{gap:10px}
  .hero-stat{flex:1 1 140px;min-width:0;padding:12px 16px}
  .hero-stat strong{font-size:20px}
  .btn{width:100%;justify-content:center}
  .hero-actions .btn{width:auto;flex:1 1 160px}
  .case-body{padding:20px}
  .faq-q{padding:14px 18px;font-size:16px}
  .faq-a{padding:16px 18px 20px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:48px 0 24px}
  .quote-main{padding:24px}
}
@media (max-width:575px){
  body{font-size:16px}
  .steps{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .filter-bar{gap:8px}
  .chip{padding:7px 14px;font-size:14px}
}

/* roulang page: category4 */
:root{
  --c-primary:#2F5D62;
  --c-primary-dark:#23484C;
  --c-accent:#C45B3C;
  --c-green:#4F7A5A;
  --c-bg:#F7F3EA;
  --c-surface:#FFFDF8;
  --c-sand:#EDE6D8;
  --c-ink:#1E2A28;
  --c-ink-2:#5F6B66;
  --c-ink-3:#8A938E;
  --c-line:#DED6C8;
  --r-s:10px;
  --r-m:16px;
  --r-l:20px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(30,42,40,.06);
  --sh-float:0 16px 44px rgba(30,42,40,.14);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sidebar-w:248px;
  --pad-x:32px;
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{
  font-family:var(--font-serif);
  color:var(--c-ink);
  margin:0 0 16px;
  line-height:1.32;
  font-weight:700;
  letter-spacing:0;
}
h1{font-size:clamp(34px,4vw,56px);}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:clamp(18px,1.7vw,22px);line-height:1.4;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,93,98,.25);border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 var(--pad-x);width:100%;}
.section{padding:var(--sec-y) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--c-primary);
  background:var(--c-sand);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;font-weight:600;
}
.section-head p{color:var(--c-ink-2);font-size:16.5px;margin-bottom:0;}

/* ============ 移动顶栏 ============ */
.mobile-topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:64px;z-index:60;
  background:rgba(247,243,234,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;
  padding:0 16px;
}
.mobile-topbar .mt-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--c-ink);font-family:var(--font-serif);font-size:17px;}
.mobile-topbar .mt-page{font-size:12.5px;color:var(--c-ink-3);display:block;font-family:var(--font-sans);font-weight:400;line-height:1.2;}
.mt-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-primary);font-size:17px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .2s ease;
}
.mt-toggle:hover{background:var(--c-sand);}

/* ============ 侧栏 ============ */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:70;
  background:var(--c-bg);
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  transition:transform .28s ease;
}
.sidebar-inner{display:flex;flex-direction:column;height:100%;padding:26px 18px 22px;overflow-y:auto;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(150deg,var(--c-primary),var(--c-primary-dark));
  color:#F7F3EA;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:20px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-family:var(--font-serif);font-weight:700;font-size:17px;color:var(--c-ink);}
.brand-sub{font-size:12px;color:var(--c-ink-3);}
.sidebar-brand{margin-bottom:26px;padding:0 8px;}

.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:10px;
  color:var(--c-ink-2);font-size:14.5px;font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.side-nav a i{width:18px;text-align:center;font-size:14px;color:var(--c-ink-3);transition:color .2s ease;}
.side-nav a::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:3px;
  background:transparent;transition:background .2s ease;
}
.side-nav a:hover{background:var(--c-sand);color:var(--c-ink);}
.side-nav a:hover i{color:var(--c-primary);}
.side-nav a.active{background:var(--c-sand);color:var(--c-primary);font-weight:600;}
.side-nav a.active i{color:var(--c-primary);}
.side-nav a.active::before{background:var(--c-primary);}

.sidebar-contact{
  margin-top:auto;padding:18px 16px;border-radius:var(--r-m);
  background:var(--c-surface);border:1px solid var(--c-line);
}
.sidebar-contact h4{font-size:14px;margin:0 0 10px;font-family:var(--font-sans);letter-spacing:.02em;}
.sidebar-contact p{font-size:13px;color:var(--c-ink-2);line-height:1.85;margin:0 0 4px;}
.sidebar-contact a{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:6px;margin-top:8px;}
.sidebar-close{
  display:none;position:absolute;top:16px;right:16px;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);cursor:pointer;
}
.nav-scrim{
  position:fixed;inset:0;background:rgba(30,42,40,.42);z-index:65;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
body.nav-open .nav-scrim{opacity:1;visibility:visible;}

/* ============ 主内容 ============ */
.app-main{margin-left:var(--sidebar-w);min-height:100vh;}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(35,72,76,.92),rgba(47,93,98,.78)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#F7F3EA;padding:72px 0 64px;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;background:rgba(255,255,255,.14);
}
.page-hero .crumb{font-size:13px;color:rgba(247,243,234,.72);margin-bottom:18px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.page-hero .crumb a{color:rgba(247,243,234,.86);}
.page-hero .crumb a:hover{color:#fff;}
.page-hero h1{color:#F7F3EA;max-width:820px;margin-bottom:18px;}
.page-hero .lead{font-size:17px;color:rgba(247,243,234,.82);max-width:700px;margin-bottom:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  font-size:13px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:rgba(247,243,234,.9);
}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:34px;}
.hero-stats .hs-item{min-width:120px;}
.hero-stats .hs-num{font-family:var(--font-serif);font-size:30px;color:#E8D6A8;line-height:1.2;}
.hero-stats .hs-label{font-size:13px;color:rgba(247,243,234,.7);}

/* ============ 搜索与标签 ============ */
.search-panel{
  margin-top:-34px;position:relative;z-index:5;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-card);padding:22px 24px;
}
.search-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;}
.search-field{position:relative;flex:1 1 320px;}
.search-field i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--c-ink-3);font-size:15px;}
.search-field input{
  width:100%;height:48px;border-radius:var(--r-s);border:1px solid var(--c-line);
  background:#fff;padding:0 16px 0 44px;font-size:15px;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-field input::placeholder{color:var(--c-ink-3);}
.search-field input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,93,98,.16);outline:none;}
.filter-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.filter-tags button{
  border:1px solid var(--c-line);background:var(--c-sand);color:var(--c-primary);
  font-size:13px;padding:7px 15px;border-radius:var(--r-pill);cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-tags button:hover{border-color:rgba(47,93,98,.35);}
.filter-tags button.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* ============ 卡片体系 ============ */
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}

.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:26px;box-shadow:var(--sh-card);height:100%;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(47,93,98,.3);box-shadow:0 14px 32px rgba(30,42,40,.1);}
.card h3{margin-bottom:10px;}
.card p{color:var(--c-ink-2);font-size:15.5px;margin-bottom:0;}
.card .icon-badge{
  width:46px;height:46px;border-radius:12px;background:var(--c-sand);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px;
}
.card-num{
  font-family:var(--font-serif);font-size:15px;color:var(--c-accent);font-weight:700;
  display:block;margin-bottom:12px;letter-spacing:.06em;
}
.channel-card{display:flex;gap:16px;align-items:flex-start;}
.channel-card .icon-badge{margin-bottom:0;flex:0 0 46px;}
.channel-card .ch-body h3{font-size:18px;margin-bottom:6px;}
.channel-card .ch-body p{margin-bottom:8px;}
.channel-card .ch-body .ch-meta{font-size:13.5px;color:var(--c-ink-3);}

/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;position:relative;}
.step{position:relative;padding:0 20px 0 0;}
.step::before{
  content:"";position:absolute;top:19px;left:0;width:100%;height:1px;background:var(--c-line);
}
.step:last-child::before{display:none;}
.step .dot{
  position:relative;width:38px;height:38px;border-radius:50%;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);
  font-weight:700;font-size:15px;margin-bottom:18px;z-index:2;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--c-ink-2);margin:0;}

/* ============ 时效分级 ============ */
.level-card{position:relative;border-left:3px solid var(--c-primary);}
.level-card.accent{border-left-color:var(--c-accent);}
.level-card .level-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;}
.level-card .level-top h3{margin:0;font-size:19px;}
.badge{
  font-size:12.5px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-sand);color:var(--c-primary);font-weight:600;white-space:nowrap;
}
.badge-brick{background:var(--c-accent);color:#fff;}
.badge-green{background:rgba(79,122,90,.14);color:var(--c-green);}
.level-card ul li{
  font-size:14.5px;color:var(--c-ink-2);padding-left:18px;position:relative;margin-bottom:8px;
}
.level-card ul li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);opacity:.5;
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;text-align:left;background:transparent;border:none;cursor:pointer;
  min-height:56px;padding:16px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-family:var(--font-serif);font-size:17.5px;color:var(--c-ink);font-weight:700;line-height:1.5;
  transition:background .2s ease;
}
.faq-q:hover{background:rgba(237,230,216,.5);}
.faq-q .fi{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;background:var(--c-sand);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-size:15px;font-family:var(--font-sans);font-weight:600;
  transition:transform .24s ease,background .24s ease,color .24s ease;
}
.faq-item.open .faq-q{background:rgba(237,230,216,.55);}
.faq-item.open .fi{background:var(--c-primary);color:#fff;transform:rotate(180deg);}
.faq-a{
  display:none;background:var(--c-bg);padding:18px 26px 22px;
}
.faq-item.open .faq-a{display:block;}
.faq-a p{color:var(--c-ink-2);font-size:15.5px;margin:0 0 10px;}
.faq-a p:last-child{margin-bottom:0;}
.faq-a ul li{font-size:15px;color:var(--c-ink-2);padding-left:18px;position:relative;margin-bottom:6px;}
.faq-a ul li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--c-accent);opacity:.7;}
.faq-empty{padding:36px 26px;text-align:center;color:var(--c-ink-3);font-size:15px;}

/* ============ 表单 ============ */
.contact-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;
}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  padding:32px;box-shadow:var(--sh-card);
}
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.form-row input,.form-row textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-s);background:#fff;
  font-size:15px;color:var(--c-ink);padding:0 16px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row input{height:48px;}
.form-row textarea{padding:14px 16px;min-height:120px;resize:vertical;line-height:1.8;}
.form-row input:focus,.form-row textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,93,98,.16);outline:none;}
.form-hint{font-size:13px;color:var(--c-ink-3);margin-top:12px;}

.btn{
  display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-s);
  padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn i{transition:transform .2s ease;}
.btn:hover i{transform:translateX(3px);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:rgba(47,93,98,.08);color:var(--c-primary-dark);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#A94A2F;color:#fff;}
.btn-block{width:100%;justify-content:center;}

.info-list li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px dashed var(--c-line);
}
.info-list li:first-child{padding-top:0;}
.info-list li:last-child{border-bottom:none;padding-bottom:0;}
.info-list i{color:var(--c-primary);font-size:16px;margin-top:5px;width:18px;text-align:center;}
.info-list .il-title{font-size:14px;color:var(--c-ink-3);display:block;}
.info-list .il-value{font-size:16px;color:var(--c-ink);font-weight:600;}

/* ============ CTA 区块 ============ */
.cta-band{
  position:relative;overflow:hidden;color:#F7F3EA;
  background-image:linear-gradient(120deg,rgba(35,72,76,.95),rgba(47,93,98,.82)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.cta-band .cta-inner{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:72px 0;
}
.cta-band h2{color:#F7F3EA;margin-bottom:14px;}
.cta-band p{color:rgba(247,243,234,.8);margin-bottom:0;font-size:16px;}
.cta-band .cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-band .cta-points span{
  font-size:13px;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.2);color:rgba(247,243,234,.9);
}
.cta-side{background:rgba(255,253,248,.97);border-radius:var(--r-l);padding:28px;color:var(--c-ink);}
.cta-side h3{font-size:19px;margin-bottom:6px;}
.cta-side .sub{font-size:14px;color:var(--c-ink-2);margin-bottom:18px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-dark);color:#F7F3EA;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .brand-mark{background:linear-gradient(150deg,#3C7480,#2F5D62);}
.site-footer .brand-name{color:#F7F3EA;}
.site-footer .brand-sub{color:rgba(247,243,234,.6);}
.site-footer p{color:rgba(247,243,234,.72);font-size:14.5px;margin-top:18px;max-width:340px;}
.footer-col h4{
  font-family:var(--font-sans);font-size:13px;letter-spacing:.12em;
  color:rgba(247,243,234,.6);margin:0 0 16px;font-weight:600;
}
.footer-col a{display:block;color:rgba(247,243,234,.86);font-size:14.5px;line-height:2.0;}
.footer-col a:hover{color:#fff;}
.footer-col ul li{color:rgba(247,243,234,.8);font-size:14.5px;line-height:2.0;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,243,234,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sidebar-w:216px;--pad-x:24px;--sec-y:64px;}
  body{font-size:16px;}
  .side-nav a{font-size:13.5px;height:42px;}
  .brand-name{font-size:16px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 0;}
  .step::before{display:none;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  :root{--pad-x:20px;--sec-y:56px;}
  .mobile-topbar{display:flex;}
  .app-main{margin-left:0;padding-top:64px;}
  .app-sidebar{
    width:86vw;max-width:320px;transform:translateX(-102%);
    box-shadow:var(--sh-float);
  }
  body.nav-open .app-sidebar{transform:translateX(0);}
  .sidebar-close{display:flex;align-items:center;justify-content:center;}
  .side-nav a{height:48px;font-size:15px;}
  .page-hero{padding:56px 0 52px;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .contact-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-band .cta-inner{grid-template-columns:1fr;gap:32px;padding:56px 0;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-stats{gap:24px;}
  .hero-stats .hs-num{font-size:25px;}
  .search-panel{padding:18px;}
  .faq-q{font-size:16px;padding:15px 18px;}
  .faq-a{padding:16px 18px 20px;}
  .form-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:1 / -1;}
  .steps{grid-template-columns:1fr;gap:24px 0;}
  .step{padding-right:0;}
  .card{padding:22px;}
}
@media (max-width:520px){
  :root{--pad-x:16px;}
  h1{font-size:30px;}
  h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .search-field{flex:1 1 100%;}
  .btn{width:100%;justify-content:center;}
  .search-row .btn{width:auto;}
}