/* roulang page: index */
:root{
  --c-brand:#1D3B31;
  --c-brand-2:#2C5A47;
  --c-accent:#D97A2B;
  --c-moss:#7E9E72;
  --c-ink:#141A17;
  --c-ink-2:#4C5751;
  --c-bg:#F7F5F0;
  --c-bg-2:#EEEAE1;
  --c-card:#FFFDFA;
  --c-line:#DCD7CB;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,23,.05);
  --sh-2:0 18px 40px -28px rgba(20,26,23,.35);
  --sec-y:104px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;

  --bs-primary:#1D3B31;
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-ink);
  --bs-body-font-family:var(--font-sans);
  --bs-border-color:var(--c-line);
  --bs-link-color:var(--c-brand);
  --bs-link-hover-color:var(--c-accent);
  --bs-border-radius:var(--r-m);
}

*,*::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:16px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--c-bg-2);}
a{color:var(--c-brand);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;color:var(--c-ink);}
h1{font-size:clamp(28px,3.6vw,44px);line-height:1.24;letter-spacing:-.01em;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 1.15em;color:var(--c-ink);}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}

.container{width:100%;max-width:1180px;margin-inline:auto;padding-inline:16px;}
@media (min-width:1400px){.container{max-width:1220px;}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-brand);color:#F7F5F0;padding:10px 18px;border-radius:0 0 var(--r-s) 0;z-index:2000;}
.skip-link:focus{left:0;color:#F7F5F0;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease;
}
.site-header.is-stuck{background:var(--c-bg);border-bottom-color:var(--c-line);}
.nav-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--c-brand);}
.brand:hover{color:var(--c-brand-2);}
.brand-mark{display:inline-flex;width:30px;height:30px;color:var(--c-brand);flex:0 0 30px;}
.brand-mark svg{width:100%;height:100%;}
.brand-txt{font-size:16.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand-sub{display:block;font-size:11px;font-weight:400;letter-spacing:.16em;color:var(--c-ink-2);line-height:1.4;}
.nav-links{display:flex;align-items:center;list-style:none;margin:0;padding:0;}
.nav-links li{position:relative;}
.nav-links li + li{margin-left:28px;}
.nav-links li + li::before{content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);width:1px;height:12px;background:var(--c-line);}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;letter-spacing:.02em;color:var(--c-ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-ink);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);height:2px;bottom:-6px;}
.nav-actions{display:flex;align-items:center;gap:16px;}
.nav-burger{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-s);
  background:transparent;color:var(--c-brand);display:none;align-items:center;justify-content:center;
  font-size:17px;transition:border-color .25s ease,background .25s ease;
}
.nav-burger:hover{border-color:var(--c-brand);background:rgba(29,59,49,.05);}
@media (max-width:991.98px){
  .nav-inner{height:64px;}
  .nav-links,.nav-actions .btn-main{display:none;}
  .nav-burger{display:inline-flex;}
  .brand-txt{font-size:15.5px;}
}
@media (max-width:400px){.brand-sub{display:none;}}

/* 移动端抽屉 */
.nav-drawer{background:var(--c-bg);width:320px;color:var(--c-ink);}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:20px 22px;align-items:center;}
.nav-drawer .offcanvas-body{padding:8px 22px 22px;display:flex;flex-direction:column;}
.drawer-links{list-style:none;margin:0 0 24px;padding:0;}
.drawer-links li{border-bottom:1px solid var(--c-line);}
.drawer-links a{display:block;padding:16px 0;font-size:17px;color:var(--c-ink);}
.drawer-links a.active{color:var(--c-accent);font-weight:600;}
.drawer-note{font-size:13px;color:var(--c-ink-2);line-height:1.7;margin-bottom:20px;}

/* ============ 按钮 ============ */
.btn-main,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .2s ease;
  cursor:pointer;
}
.btn-main{background:var(--c-brand);border:1px solid var(--c-brand);color:#F7F5F0;}
.btn-main:hover{background:var(--c-brand-2);border-color:var(--c-brand-2);color:#fff;transform:translateY(-1px);}
.btn-main:active{transform:translateY(0);}
.btn-line,.btn-ghost{background:transparent;border:1px solid var(--c-line);color:var(--c-ink);}
.btn-line:hover,.btn-ghost:hover{border-color:var(--c-brand);background:rgba(29,59,49,.04);color:var(--c-brand);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-brand);border-bottom:1px solid var(--c-brand);
  padding-bottom:2px;transition:color .25s ease,border-color .25s ease;
}
.btn-text:hover{color:var(--c-accent);border-color:var(--c-accent);}
@media (max-width:575.98px){
  .btn-main,.btn-line,.btn-ghost{height:44px;padding:0 20px;font-size:14.5px;}
}

/* ============ 通用板块 ============ */
.sec{padding:var(--sec-y) 0;}
.sec-tight{padding:calc(var(--sec-y) * .7) 0;}
.sec-bg2{background:var(--c-bg-2);}
@media (max-width:991.98px){.sec{padding:64px 0;}}
@media (max-width:575.98px){.sec{padding:56px 0;}}

.sec-head{margin-bottom:46px;}
.sec-head h2{position:relative;padding-left:16px;margin-bottom:12px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.3em;width:3px;height:20px;
  background:var(--c-accent);border-radius:2px;
}
.sec-head p{max-width:760px;color:var(--c-ink-2);font-size:15.5px;margin:0;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
@media (max-width:575.98px){.sec-head{margin-bottom:32px;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--c-brand-2);
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(126,158,114,.16);margin-bottom:22px;
}

/* ============ Hero ============ */
.hero{padding:76px 0 88px;}
.hero h1{margin-bottom:16px;}
.hero-sub{
  font-size:17px;line-height:1.72;font-weight:600;color:var(--c-brand-2);
  margin-bottom:14px;
}
.hero-lead{font-size:15.5px;line-height:1.92;color:var(--c-ink-2);max-width:560px;margin-bottom:30px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-stats{display:flex;flex-wrap:wrap;align-items:stretch;}
.hero-stats .stat{padding:0 26px;position:relative;}
.hero-stats .stat:first-child{padding-left:0;}
.hero-stats .stat + .stat::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--c-line);
}
.hero-stats b{
  display:block;font-family:var(--font-num);font-size:26px;font-weight:700;
  color:var(--c-brand);line-height:1.2;letter-spacing:-.01em;
}
.hero-stats span{display:block;font-size:12px;color:var(--c-ink-2);line-height:1.6;margin-top:6px;}
.hero-figure{
  position:relative;margin:0;border-radius:var(--r-l);overflow:hidden;
  aspect-ratio:4/5;box-shadow:var(--sh-2);border:1px solid var(--c-line);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(29,59,49,.05) 0%,rgba(29,59,49,.3) 100%);
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(247,245,240,.94);border-radius:var(--r-m);
  padding:12px 16px;font-size:13px;color:var(--c-brand);font-weight:600;
  display:flex;align-items:center;gap:10px;
}
.hero-badge i{color:var(--c-accent);}
@media (max-width:991.98px){
  .hero{padding:44px 0 56px;}
  .hero-figure{aspect-ratio:16/11;margin-top:8px;}
  .hero-btns{margin-bottom:32px;}
}
@media (max-width:575.98px){
  .hero-stats .stat{padding:0 16px;}
  .hero-stats b{font-size:22px;}
}

/* ============ 痛点编号区 ============ */
.pain-wrap{position:relative;padding-left:34px;}
.pain-wrap::before{
  content:"";position:absolute;left:9px;top:10px;bottom:10px;width:1px;background:var(--c-line);
}
.pain-item{display:flex;gap:24px;padding:26px 0;border-bottom:1px solid var(--c-line);}
.pain-item:first-child{padding-top:4px;}
.pain-item:last-child{border-bottom:0;padding-bottom:4px;}
.pain-num{
  font-family:var(--font-num);font-size:40px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(217,122,43,.7);
  flex:0 0 82px;letter-spacing:-.02em;padding-top:2px;
}
.pain-body h3{margin-bottom:6px;font-size:18px;}
.pain-body p{margin:0;font-size:15px;line-height:1.85;color:var(--c-ink-2);}
@media (max-width:575.98px){
  .pain-wrap{padding-left:22px;}
  .pain-item{gap:14px;}
  .pain-num{font-size:30px;flex:0 0 56px;}
}

/* ============ 流程步骤 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:48px;}
.steps::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:var(--c-line);}
.step{position:relative;padding-right:32px;}
.step-dot{
  position:relative;width:19px;height:19px;border-radius:50%;
  background:var(--c-bg);border:1px solid var(--c-brand);margin-bottom:22px;z-index:1;
}
.step-dot::after{content:"";position:absolute;inset:5px;border-radius:50%;background:var(--c-accent);}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.85;color:var(--c-ink-2);margin:0;}
.step-num{font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--c-moss);display:block;margin-bottom:10px;}
.steps-figure{margin:0;border-radius:var(--r-m);overflow:hidden;aspect-ratio:21/9;border:1px solid var(--c-line);}
.steps-figure img{width:100%;height:100%;object-fit:cover;}
@media (max-width:991.98px){
  .steps{grid-template-columns:1fr;gap:0;}
  .steps::before{left:9px;right:auto;top:8px;bottom:8px;width:1px;height:auto;}
  .step{padding:0 0 30px 34px;}
  .step-dot{margin-bottom:12px;position:absolute;left:0;top:2px;}
  .step:last-child{padding-bottom:0;}
  .steps-figure{aspect-ratio:16/9;}
}

/* ============ 数据通栏 ============ */
.band{background:var(--c-brand);color:rgba(247,245,240,.76);padding:78px 0;}
.band h2{color:#F7F5F0;}
.band .sec-head h2{padding-left:16px;}
.band .sec-head p{color:rgba(247,245,240,.66);}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.band-item{padding:0 30px;position:relative;}
.band-item:first-child{padding-left:0;}
.band-item + .band-item::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:rgba(247,245,240,.16);}
.band-item b{
  display:block;font-family:var(--font-num);font-size:38px;font-weight:700;
  color:#F7F5F0;line-height:1.15;letter-spacing:-.02em;
}
.band-item b em{font-style:normal;font-size:16px;color:var(--c-accent);margin-left:4px;letter-spacing:0;}
.band-item span{display:block;font-size:13.5px;line-height:1.7;margin-top:10px;color:rgba(247,245,240,.66);}
@media (max-width:991.98px){
  .band{padding:60px 0;}
  .band-grid{grid-template-columns:repeat(2,1fr);row-gap:34px;}
  .band-item:nth-child(odd){padding-left:0;}
  .band-item:nth-child(3)::before,.band-item:nth-child(odd)::before{display:none;}
}
@media (max-width:575.98px){
  .band-grid{grid-template-columns:1fr;}
  .band-item{padding-left:0;}
  .band-item::before{display:none;}
}

/* ============ 证言 ============ */
.quote-card{
  position:relative;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-m);padding:34px 30px 28px;height:100%;
  transition:box-shadow .3s ease,transform .3s ease;
}
.quote-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.quote-mark{
  font-family:var(--font-num);font-size:60px;line-height:.7;
  color:rgba(126,158,114,.34);display:block;margin-bottom:14px;
}
.quote-card p{font-size:15.5px;line-height:1.9;color:var(--c-ink);margin-bottom:24px;}
.quote-meta{display:flex;align-items:center;gap:14px;border-top:1px solid var(--c-line);padding-top:18px;}
.quote-avatar{
  width:48px;height:48px;border-radius:50%;flex:0 0 48px;overflow:hidden;
  background:var(--c-bg-2);border:1px solid var(--c-line);
}
.quote-avatar img{width:100%;height:100%;object-fit:cover;}
.quote-meta strong{display:block;font-size:15px;line-height:1.5;}
.quote-meta span{display:block;font-size:12.5px;color:var(--c-ink-2);line-height:1.6;}

/* ============ 最新信息（CMS 区） ============ */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:38px;}
.news-feature{
  position:relative;display:flex;flex-direction:column;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden;
  transition:box-shadow .35s ease,transform .35s ease;
}
.news-feature:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.news-feature-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-2);}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.news-feature:hover .news-feature-media img{transform:scale(1.03);}
.news-feature-body{padding:24px 26px 26px;}
.news-feature-body h3{font-size:20px;margin:14px 0 10px;transition:color .25s ease;}
.news-feature:hover .news-feature-body h3{color:var(--c-brand-2);}
.news-feature-body p{
  font-size:14.5px;line-height:1.85;color:var(--c-ink-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-link{color:inherit;}
.card-link::after{content:"";position:absolute;inset:0;z-index:1;}
.tag{
  display:inline-block;font-size:12px;line-height:1;padding:6px 11px;
  border-radius:var(--r-pill);background:rgba(126,158,114,.18);color:#3D5735;
}
.news-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-family:var(--font-num);font-size:13px;color:var(--c-ink-2);
}
.news-meta .sep{width:1px;height:11px;background:var(--c-line);display:inline-block;}
.news-list{display:flex;flex-direction:column;}
.mini-item{
  position:relative;display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line);
}
.mini-item:first-child{padding-top:0;}
.mini-item:last-child{border-bottom:0;padding-bottom:0;}
.mini-thumb{
  width:96px;height:72px;flex:0 0 96px;border-radius:var(--r-s);overflow:hidden;
  background:var(--c-bg-2);border:1px solid var(--c-line);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.mini-item:hover .mini-thumb img{transform:scale(1.04);}
.mini-body{min-width:0;}
.mini-body h3{
  font-size:16px;line-height:1.6;margin:0 0 8px;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .25s ease;
}
.mini-item:hover .mini-body h3{color:var(--c-brand-2);}
.mini-meta{font-family:var(--font-num);font-size:12.5px;color:var(--c-ink-2);display:flex;align-items:center;gap:10px;}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-m);
  padding:48px 24px;text-align:center;background:rgba(255,253,250,.6);
  grid-column:1 / -1;
}
.empty-state i{font-size:26px;color:var(--c-moss);display:block;margin-bottom:14px;}
.empty-state p{margin:0 0 18px;font-size:15px;color:var(--c-ink-2);}
@media (max-width:991.98px){
  .news-grid{grid-template-columns:1fr;gap:28px;}
  .mini-thumb{width:88px;height:66px;flex:0 0 88px;}
}

/* ============ FAQ ============ */
.faq-list{list-style:none;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:24px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:color .25s ease;
}
.faq-q:hover{color:var(--c-brand-2);}
.faq-q[aria-expanded="true"]{color:var(--c-brand);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-accent);transition:transform .3s ease,opacity .3s ease;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{padding:0 40px 26px 0;font-size:15px;line-height:1.88;color:var(--c-ink-2);max-width:820px;}
.faq-a p{margin:0;color:var(--c-ink-2);}

/* ============ 尾部 CTA ============ */
.cta-band{background:var(--c-brand);padding:76px 0;position:relative;overflow:hidden;}
.cta-band-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{color:#F7F5F0;margin-bottom:10px;}
.cta-band p{color:rgba(247,245,240,.68);margin:0;font-size:15.5px;max-width:560px;}
.cta-line{position:absolute;right:-60px;top:50%;width:420px;height:1px;background:rgba(247,245,240,.14);transform:rotate(-14deg);}
.btn-invert{background:#F7F5F0;border-color:#F7F5F0;color:var(--c-brand);}
.btn-invert:hover{background:transparent;color:#F7F5F0;border-color:rgba(247,245,240,.6);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-brand);color:rgba(247,245,240,.7);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0;}
.foot-col{padding:0 30px;border-left:1px solid rgba(247,245,240,.13);}
.foot-col:first-child{padding-left:0;border-left:0;}
.foot-brand{display:inline-flex;align-items:center;gap:12px;color:#F7F5F0;margin-bottom:18px;}
.foot-brand .brand-mark{color:#F7F5F0;}
.foot-brand:hover{color:#F7F5F0;}
.foot-brand .brand-txt{color:#F7F5F0;font-size:16px;}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(247,245,240,.62);margin:0 0 18px;max-width:320px;}
.foot-contact{font-size:13.5px;line-height:1.9;color:rgba(247,245,240,.62);}
.foot-contact i{color:var(--c-accent);margin-right:8px;width:14px;}
.foot-col h4{color:#F7F5F0;font-size:15px;margin:0 0 18px;letter-spacing:.02em;}
.foot-links{list-style:none;padding:0;margin:0;}
.foot-links li{margin-bottom:12px;}
.foot-links a{font-size:14px;color:rgba(247,245,240,.7);}
.foot-links a:hover{color:#F7F5F0;}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(247,245,240,.13);
  padding:24px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,245,240,.5);
}
.foot-bottom a{color:rgba(247,245,240,.62);}
.foot-bottom a:hover{color:#F7F5F0;}
@media (max-width:991.98px){
  .site-footer{padding:56px 0 0;}
  .foot-grid{grid-template-columns:repeat(2,1fr);row-gap:40px;}
  .foot-col{padding:0 0 0 24px;}
  .foot-col:nth-child(odd){padding-left:0;border-left:0;}
}
@media (max-width:575.98px){
  .foot-grid{grid-template-columns:1fr;}
  .foot-col{padding-left:0;border-left:0;}
  .foot-bottom{margin-top:40px;}
}

/* roulang page: article */
/* ===================== 设计变量 ===================== */
:root{
  --c-brand:#1D3B31;
  --c-brand-2:#2C5A47;
  --c-accent:#D97A2B;
  --c-moss:#7E9E72;
  --c-ink:#141A17;
  --c-ink-2:#4C5751;
  --c-bg:#F7F5F0;
  --c-bg-2:#EEEAE1;
  --c-line:#DCD7CB;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,23,.05);
  --sh-2:0 18px 40px -28px rgba(20,26,23,.35);
  --sec-y:56px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;

  --bs-primary:#1D3B31;
  --bs-primary-rgb:29,59,49;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#141A17;
  --bs-body-font-family:var(--font-cn);
  --bs-border-color:#DCD7CB;
  --bs-link-color:#2C5A47;
  --bs-link-hover-color:#D97A2B;
  --bs-border-radius:14px;
}
@media (min-width:992px){ :root{ --sec-y:104px; } }

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease;}
a:hover{color:var(--c-brand-2);}
ul,ol{margin:0;padding:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
::selection{background:rgba(217,122,43,.22);}

.container{width:100%;max-width:1180px;margin-inline:auto;padding-inline:16px;}
@media (min-width:992px){ .container{padding-inline:24px;} }
@media (min-width:1400px){ .container{max-width:1220px;} }

/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,background-color .3s ease;
}
.site-header.is-stuck{border-bottom-color:var(--c-line);background:rgba(247,245,240,.98);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px;}
@media (min-width:992px){ .header-inner{height:76px;} }

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-brand);font-weight:700;letter-spacing:.02em;min-width:0;}
.brand:hover{color:var(--c-brand);}
.brand-mark{width:30px;height:30px;flex:none;color:var(--c-brand);display:inline-flex;}
.brand-mark svg{width:100%;height:100%;}
.brand-txt{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
@media (max-width:400px){ .brand-txt{font-size:14.5px;} }

.nav-links{display:flex;align-items:center;gap:28px;list-style:none;}
.nav-links li{list-style:none;}
.nav-links a{
  position:relative;display:inline-block;padding:4px 0;
  font-size:15px;letter-spacing:.02em;color:var(--c-ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--c-accent);transition:width .3s ease;
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--c-ink);font-weight:600;}
.nav-links a.active::after{width:100%;height:2px;bottom:-4px;background:var(--c-accent);}

.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--c-brand);color:#fff;font-size:14px;font-weight:500;
  border:1px solid var(--c-brand);
  transition:background-color .25s ease,transform .25s ease;
}
.nav-cta:hover{background:var(--c-brand-2);border-color:var(--c-brand-2);color:#fff;transform:translateY(-1px);}

.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:transparent;color:var(--c-ink);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;transition:border-color .25s ease,color .25s ease;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}

/* 移动端抽屉 */
.offcanvas.mobile-nav{background:var(--c-bg);width:min(320px,88vw);border-left:1px solid var(--c-line);}
.mobile-nav .offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--c-line);align-items:center;}
.mobile-nav .offcanvas-title{font-size:15px;font-weight:700;color:var(--c-brand);line-height:1.5;}
.mobile-nav .m-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);
  background:transparent;color:var(--c-ink-2);font-size:15px;
}
.mobile-nav .offcanvas-body{padding:8px 20px 20px;}
.m-link{
  display:block;padding:16px 0;font-size:17px;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.m-link:hover,.m-link.active{color:var(--c-brand-2);}
.m-foot{padding:16px 20px 26px;border-top:1px solid var(--c-line);}

/* ===================== 按钮 ===================== */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--c-brand);color:#fff;font-size:15px;font-weight:500;
  border:1px solid var(--c-brand);cursor:pointer;
  transition:background-color .25s ease,transform .25s ease,box-shadow .25s ease,color .25s ease;
}
.btn-main:hover{background:var(--c-brand-2);border-color:var(--c-brand-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);box-shadow:none;}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--c-line);color:var(--c-ink);
  font-size:15px;transition:all .25s ease;
}
.btn-ghost:hover{border-color:var(--c-brand);background:rgba(29,59,49,.04);color:var(--c-brand);}

.btn-onDark{background:var(--c-bg);border-color:var(--c-bg);color:var(--c-brand);}
.btn-onDark:hover{background:#fff;border-color:#fff;color:var(--c-brand-2);}

.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-brand-2);
  border-bottom:1px solid var(--c-line);padding-bottom:2px;
}
.link-more:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

@media (max-width:575px){
  .btn-main,.btn-ghost{height:44px;padding:0 20px;font-size:14.5px;}
}

/* ===================== 文章头部 ===================== */
.article-head{padding:34px 0 28px;border-bottom:1px solid var(--c-line);}
@media (min-width:992px){ .article-head{padding:52px 0 40px;} }

.breadcrumb-nav{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-2);margin-bottom:20px;
}
.breadcrumb-nav a{color:var(--c-ink-2);}
.breadcrumb-nav a:hover{color:var(--c-brand-2);}
.breadcrumb-nav .sep{color:#C6BFB0;}
.breadcrumb-nav .cur{
  color:var(--c-ink);max-width:320px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
@media (max-width:575px){ .breadcrumb-nav .cur{max-width:160px;} }

.article-title{
  margin:0 0 18px;max-width:900px;
  font-size:clamp(26px,3.4vw,40px);line-height:1.32;font-weight:700;
  letter-spacing:.005em;color:var(--c-ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--c-ink-2);font-family:var(--font-num);
}
.article-meta .cat{
  font-family:var(--font-cn);font-size:12px;color:var(--c-brand-2);
  background:rgba(126,158,114,.18);border-radius:var(--r-pill);padding:3px 12px;
}
.article-meta .dot{width:1px;height:12px;background:var(--c-line);display:inline-block;}

/* ===================== 文章主体 ===================== */
.article-area{padding:40px 0 var(--sec-y);}
@media (min-width:992px){ .article-area{padding:56px 0 var(--sec-y);} }

.article-body{max-width:780px;font-size:16px;line-height:1.9;color:var(--c-ink);}
@media (min-width:992px){ .article-body{font-size:16.5px;} }
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;margin:2em 0 .7em;padding-left:16px;
  font-size:clamp(21px,2.2vw,26px);line-height:1.42;font-weight:700;color:var(--c-ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;width:3px;height:1.02em;
  background:var(--c-accent);border-radius:2px;
}
.article-body h3{margin:1.6em 0 .5em;font-size:19px;line-height:1.5;font-weight:600;}
.article-body h4{margin:1.4em 0 .45em;font-size:17px;font-weight:600;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.15em;}
.article-body li{margin-bottom:.5em;}
.article-body ul li::marker{color:var(--c-moss);}
.article-body ol li::marker{color:var(--c-accent);font-family:var(--font-num);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--c-bg-2);
  border-left:3px solid var(--c-accent);border-radius:0 var(--r-s) var(--r-s) 0;
  color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:1.6em 0 .6em;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;line-height:1.6;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--c-bg-2);font-weight:600;}
.article-body a{color:var(--c-brand-2);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--c-accent);}
.article-body a:hover{color:var(--c-accent);}
.article-body strong{font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0;}

/* 内容未找到 */
.empty-state{
  max-width:780px;border:1px dashed var(--c-line);border-radius:var(--r-m);
  background:var(--c-bg-2);padding:48px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:50%;
  background:rgba(126,158,114,.2);color:var(--c-brand-2);
  display:flex;align-items:center;justify-content:center;font-size:20px;
}
.empty-state h2{margin:0 0 10px;font-size:21px;font-weight:600;color:var(--c-ink);}
.empty-state p{margin:0 auto 24px;max-width:460px;font-size:15px;color:var(--c-ink-2);line-height:1.85;}

/* 文末区 */
.article-foot{margin-top:2.6em;padding-top:28px;border-top:1px solid var(--c-line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(126,158,114,.18);
  color:var(--c-brand-2);font-size:12.5px;letter-spacing:.02em;
}
.back-row{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:14px;}
.back-row a{color:var(--c-brand-2);border-bottom:1px solid var(--c-line);padding-bottom:2px;}
.back-row a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

/* ===================== 相关推荐 ===================== */
.related-sec{margin-top:64px;padding-top:36px;border-top:1px solid var(--c-line);max-width:1000px;}
.related-sec h2{
  position:relative;margin:0 0 26px;padding-left:14px;
  font-size:clamp(20px,2vw,24px);font-weight:700;line-height:1.4;
}
.related-sec h2::before{
  content:"";position:absolute;left:0;top:.28em;width:3px;height:1em;background:var(--c-accent);border-radius:2px;
}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:991px){ .related-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:575px){ .related-grid{grid-template-columns:1fr;} }

.rel-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .3s ease,transform .3s ease,border-color .3s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#CFC9BB;}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-cat{
  align-self:flex-start;font-size:11.5px;color:var(--c-brand-2);
  background:rgba(126,158,114,.18);border-radius:var(--r-pill);padding:2px 10px;
}
.rel-title{
  margin:0;font-size:15.5px;line-height:1.6;font-weight:600;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover .rel-title{color:var(--c-brand-2);}
.rel-time{font-size:13px;color:var(--c-ink-2);font-family:var(--font-num);margin-top:auto;}

/* ===================== 侧栏 ===================== */
.side-wrap{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card h3{
  margin:0 0 14px;font-size:13px;font-weight:600;letter-spacing:.1em;
  color:var(--c-ink-2);
}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:11px;}
.toc-list a{
  display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--c-ink-2);line-height:1.6;
}
.toc-list a::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--c-line);
  margin-top:.62em;flex:none;transition:background-color .25s ease;
}
.toc-list a:hover{color:var(--c-brand);}
.toc-list a:hover::before{background:var(--c-accent);}

.side-cta{background:var(--c-brand);border-color:var(--c-brand);color:#F2EFE8;}
.side-cta h3{color:rgba(247,245,240,.68);}
.side-cta p{margin:0 0 16px;font-size:14px;line-height:1.8;color:rgba(247,245,240,.85);}
.side-cta .btn-onDark{width:100%;height:44px;font-size:14px;}

/* ===================== CTA 通栏 ===================== */
.cta-band{background:var(--c-brand);color:#F7F5F0;padding:var(--sec-y) 0;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  flex-wrap:wrap;
}
.cta-inner h2{margin:0 0 10px;font-size:clamp(22px,2.6vw,30px);line-height:1.4;font-weight:700;color:#F7F5F0;}
.cta-inner p{margin:0;max-width:620px;font-size:15px;line-height:1.85;color:rgba(247,245,240,.8);}
.cta-line{width:64px;height:1px;background:rgba(247,245,240,.32);margin-top:20px;}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--c-brand);color:#E8E5DD;padding:64px 0 28px;font-size:14px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
@media (max-width:991px){ .foot-grid{grid-template-columns:1fr 1fr;gap:32px;} }
@media (max-width:575px){ .foot-grid{grid-template-columns:1fr;gap:28px;} }
.foot-col h4{
  margin:0 0 16px;font-size:13px;font-weight:600;letter-spacing:.12em;
  color:rgba(247,245,240,.62);
}
.foot-brand{color:#F7F5F0;margin-bottom:14px;}
.foot-brand .brand-mark,.foot-brand .brand-txt{color:#F7F5F0;}
.foot-brand:hover{color:#fff;}
.foot-desc{margin:0 0 16px;font-size:13.5px;line-height:1.85;color:rgba(247,245,240,.72);}
.foot-contact{margin:0;font-size:13px;line-height:1.95;color:rgba(247,245,240,.72);font-family:var(--font-num);}
.foot-contact i{color:var(--c-moss);margin-right:6px;}
.foot-links{list-style:none;display:flex;flex-direction:column;gap:11px;}
.foot-links a{font-size:13.5px;color:rgba(247,245,240,.78);}
.foot-links a:hover{color:#fff;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(247,245,240,.18);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(247,245,240,.6);font-family:var(--font-num);
}
@media (min-width:992px){
  .foot-col + .foot-col{padding-left:36px;border-left:1px solid rgba(247,245,240,.14);}
}

/* roulang page: category1 */
:root{
  --c-brand:#1D3B31;
  --c-brand-2:#2C5A47;
  --c-accent:#D97A2B;
  --c-moss:#7E9E72;
  --c-ink:#141A17;
  --c-ink-2:#4C5751;
  --c-bg:#F7F5F0;
  --c-bg-2:#EEEAE1;
  --c-line:#DCD7CB;
  --c-white:#FFFFFF;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,23,.05);
  --sh-2:0 18px 40px -28px rgba(20,26,23,.35);
  --sec-y:56px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#141A17;
  --bs-primary:#1D3B31;
  --bs-primary-rgb:29,59,49;
  --bs-link-color:#1D3B31;
  --bs-link-hover-color:#2C5A47;
  --bs-border-color:#DCD7CB;
  --bs-font-sans-serif:var(--font-cn);
  --bs-body-font-family:var(--font-cn);
}
@media (min-width:992px){
  :root{ --sec-y:104px; }
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);}
p{margin:0 0 1.15em;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;
}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){ .container{max-width:1220px;} }
@media (max-width:575.98px){ .container{padding-left:16px;padding-right:16px;} }

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,box-shadow .3s ease,background-color .3s ease;
}
.site-header.is-stuck{border-bottom-color:var(--c-line);background:var(--c-bg);box-shadow:none;}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:64px;
}
@media (min-width:992px){ .header-inner{height:76px;} }
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-brand);}
.brand-mark{width:28px;height:28px;flex:0 0 28px;color:var(--c-brand);display:inline-flex;}
.brand-mark svg{width:100%;height:100%;display:block;}
.brand-txt{
  font-size:16.5px;font-weight:700;letter-spacing:.01em;color:var(--c-ink);
  white-space:nowrap;
}
@media (min-width:992px){ .brand-txt{font-size:17.5px;} }
.nav-links{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0;}
.nav-links li{position:relative;}
.nav-links a{
  display:inline-block;position:relative;padding:6px 0;
  font-size:15px;letter-spacing:.02em;color:var(--c-ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--c-brand);transition:width .35s ease;
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--c-ink);font-weight:600;}
.nav-links a.active::after{
  width:100%;height:2px;bottom:-6px;background:var(--c-accent);
}
.header-actions{display:flex;align-items:center;gap:14px;}
.menu-toggle{
  width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:transparent;color:var(--c-ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
  transition:border-color .25s ease,color .25s ease;
}
.menu-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
@media (min-width:992px){
  .btn-main,.btn-ghost{height:48px;padding:0 26px;}
}
.btn-main{background:var(--c-brand);border-color:var(--c-brand);color:#fff;}
.btn-main:hover{background:var(--c-brand-2);border-color:var(--c-brand-2);color:#fff;transform:translateY(-1px);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-brand);background:rgba(29,59,49,.04);color:var(--c-ink);}
.btn-sm-main{height:38px;padding:0 20px;font-size:14px;}
.btn-on-dark{background:#fff;border-color:#fff;color:var(--c-brand);}
.btn-on-dark:hover{background:var(--c-bg-2);border-color:var(--c-bg-2);color:var(--c-brand);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--c-brand);border-bottom:1px solid var(--c-accent);
  padding-bottom:2px;line-height:1.6;
}
.link-more:hover{color:var(--c-accent);}

/* ---------- 移动端抽屉 ---------- */
.mobile-nav{background:var(--c-bg);width:min(340px,86vw);border-left:1px solid var(--c-line);}
.mobile-nav .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--c-line);}
.mobile-nav .offcanvas-header .brand-txt{font-size:16px;white-space:normal;}
.mobile-nav .offcanvas-body{padding:12px 22px 28px;display:flex;flex-direction:column;}
.mobile-links{list-style:none;margin:0 0 auto;padding:0;}
.mobile-links li{border-bottom:1px solid var(--c-line);}
.mobile-links a{
  display:block;padding:16px 0;font-size:17px;color:var(--c-ink-2);
}
.mobile-links a.active{color:var(--c-brand);font-weight:600;}
.mobile-nav .btn-main{margin-top:24px;width:100%;}

/* ---------- 页面头部 ---------- */
.cat-hero{padding:40px 0 36px;border-bottom:1px solid var(--c-line);}
@media (min-width:992px){ .cat-hero{padding:56px 0 44px;} }
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-2);margin-bottom:20px;
}
.crumb a{border-bottom:1px solid transparent;}
.crumb a:hover{color:var(--c-brand);border-bottom-color:var(--c-accent);}
.crumb .sep{opacity:.55;}
.page-h1{
  font-size:clamp(32px,4.6vw,52px);line-height:1.22;letter-spacing:-.01em;
  max-width:18em;
}
.hero-sub{
  font-size:16px;line-height:1.9;color:var(--c-ink-2);
  max-width:800px;margin:18px 0 26px;
}
@media (min-width:992px){ .hero-sub{font-size:17px;} }
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;
  font-size:13px;color:var(--c-ink-2);
}
.hero-meta span{
  padding:2px 16px;border-left:1px solid var(--c-line);line-height:1.7;
}
.hero-meta span:first-child{border-left:0;padding-left:0;}
@media (max-width:575.98px){
  .hero-meta{flex-direction:column;align-items:flex-start;}
  .hero-meta span{border-left:0;padding:2px 0;}
}

/* ---------- 布局 ---------- */
.layout{padding:var(--sec-y) 0;}
.side-nav{position:sticky;top:104px;}
.side-title{
  font-family:var(--font-num);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--c-ink-2);margin-bottom:16px;
}
.side-list{list-style:none;border-left:1px solid var(--c-line);}
.side-list a{
  display:block;position:relative;padding:10px 0 10px 18px;
  font-size:14.5px;color:var(--c-ink-2);line-height:1.6;
}
.side-list a::before{
  content:"";position:absolute;left:-4px;top:50%;transform:translateY(-50%) scale(0);
  width:7px;height:7px;border-radius:50%;background:var(--c-accent);
  transition:transform .25s ease;
}
.side-list a:hover{color:var(--c-ink);}
.side-list a.active{color:var(--c-brand);font-weight:600;}
.side-list a.active::before{transform:translateY(-50%) scale(1);}
.side-note{
  margin-top:26px;padding-top:18px;border-top:1px solid var(--c-line);
  font-size:13px;line-height:1.8;color:var(--c-ink-2);
}
@media (max-width:991.98px){
  .side-nav{position:static;margin-bottom:36px;}
  .side-list{display:flex;flex-wrap:wrap;border-left:0;gap:10px;}
  .side-list li{border:1px solid var(--c-line);border-radius:var(--r-pill);}
  .side-list a{padding:7px 16px;font-size:14px;}
  .side-list a::before{display:none;}
  .side-list a.active{background:rgba(29,59,49,.06);border-radius:var(--r-pill);}
  .side-note{margin-top:20px;}
}

/* ---------- 正文 ---------- */
.article-body{max-width:820px;}
.article-body p{font-size:16px;line-height:1.9;color:var(--c-ink);max-width:800px;}
@media (max-width:575.98px){ .article-body p{font-size:15.5px;line-height:1.85;} }
.sec-block{margin-bottom:44px;scroll-margin-top:104px;}
@media (min-width:992px){ .sec-block{margin-bottom:56px;} }
.sec-h{
  position:relative;padding-left:14px;
  font-size:clamp(22px,3vw,28px);line-height:1.35;font-weight:700;
  margin-bottom:18px;
}
.sec-h::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:20px;
  background:var(--c-accent);border-radius:2px;
}
.lead-line{
  font-size:16px;color:var(--c-ink-2);line-height:1.9;
  padding-left:14px;border-left:1px solid var(--c-line);margin-bottom:26px;
}
.figure{margin:28px 0 34px;}
.figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:12px;background:var(--c-bg-2);
  border:1px solid var(--c-line);
}
.figure figcaption{font-size:13px;color:var(--c-ink-2);margin-top:10px;line-height:1.7;}

.step-list{list-style:none;counter-reset:s;border-top:1px solid var(--c-line);margin:0 0 34px;}
.step-list li{
  counter-increment:s;display:flex;gap:16px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--c-line);
  font-size:15.5px;line-height:1.85;color:var(--c-ink);
}
.step-list li::before{
  content:counter(s,decimal-leading-zero);
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--c-accent);
  min-width:30px;line-height:1.9;
}

.key-grid{
  display:grid;grid-template-columns:1fr 1fr;column-gap:36px;
  border-top:1px solid var(--c-line);margin:0 0 36px;
}
.key-grid li{
  list-style:none;display:flex;gap:10px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--c-line);
  font-size:15px;line-height:1.75;color:var(--c-ink);
}
.key-grid li i{color:var(--c-moss);font-size:12px;margin-top:7px;flex:0 0 auto;}
@media (max-width:575.98px){ .key-grid{grid-template-columns:1fr;column-gap:0;} }

.quote{
  border-left:3px solid var(--c-accent);background:var(--c-bg-2);
  border-radius:0 var(--r-s) var(--r-s) 0;
  padding:16px 22px;margin:0 0 30px;
  font-size:15px;line-height:1.85;color:var(--c-ink-2);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 34px;}
.tag{
  display:inline-flex;align-items:center;
  background:rgba(126,158,114,.2);color:#3E5A36;
  font-size:12px;line-height:1;padding:7px 12px;border-radius:var(--r-pill);
}

/* ---------- 底部提示条 ---------- */
.cat-cta{
  display:flex;flex-direction:column;align-items:flex-start;gap:20px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:26px 24px;box-shadow:var(--sh-1);
  margin-top:12px;
}
@media (min-width:768px){
  .cat-cta{flex-direction:row;align-items:center;justify-content:space-between;padding:30px 34px;}
}
.cat-cta h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.cat-cta p{font-size:14.5px;color:var(--c-ink-2);margin:0;line-height:1.8;max-width:640px;}

/* ---------- FAQ ---------- */
.faq-sec{padding:var(--sec-y) 0;border-top:1px solid var(--c-line);}
.sec-head{margin-bottom:30px;max-width:800px;}
.sec-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
.sec-head p{font-size:15.5px;color:var(--c-ink-2);margin:14px 0 0;line-height:1.9;}
.faq-acc{border-top:1px solid var(--c-line);}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;border-radius:0;
  padding:22px 44px 22px 0;font-size:17px;font-weight:600;color:var(--c-ink);
  line-height:1.6;transition:color .25s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-brand);background:transparent;box-shadow:none;}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-family:var(--font-num);font-size:24px;font-weight:400;line-height:1;
  color:var(--c-accent);margin-left:auto;display:flex;align-items:center;
  transition:transform .3s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-acc .accordion-button:hover{color:var(--c-brand-2);}
.faq-acc .accordion-body{
  padding:0 0 26px;font-size:15px;line-height:1.85;color:var(--c-ink-2);max-width:800px;
}

/* ---------- 尾部 CTA ---------- */
.end-cta{background:var(--c-brand);color:#fff;padding:60px 0;}
@media (min-width:992px){ .end-cta{padding:84px 0;} }
.end-cta .inner{display:flex;flex-direction:column;gap:26px;}
@media (min-width:992px){
  .end-cta .inner{flex-direction:row;align-items:center;justify-content:space-between;gap:48px;}
}
.end-cta h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.3;max-width:14em;}
.end-cta p{color:rgba(255,255,255,.76);font-size:15.5px;margin:14px 0 0;line-height:1.9;max-width:620px;}
.end-cta .cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand);color:rgba(255,255,255,.8);padding:60px 0 0;margin-top:0;}
@media (min-width:992px){ .site-footer{padding-top:72px;} }
.foot-grid{
  display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;
}
@media (min-width:576px){ .foot-grid{grid-template-columns:1fr 1fr;} }
@media (min-width:992px){
  .foot-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:0;padding-bottom:52px;}
  .foot-col:not(:first-child){border-left:1px solid rgba(255,255,255,.12);padding-left:36px;}
  .foot-col:not(:last-child){padding-right:36px;}
}
.foot-brand{color:#fff;}
.foot-brand .brand-mark{color:#fff;}
.foot-brand .brand-txt{color:#fff;font-size:17px;white-space:normal;}
.foot-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.7);margin:18px 0 14px;}
.foot-contact{font-size:13px;line-height:2;color:rgba(255,255,255,.62);margin:0;}
.foot-contact i{margin-right:6px;color:var(--c-moss);}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.foot-links{list-style:none;}
.foot-links li{margin-bottom:11px;}
.foot-links a{font-size:14px;color:rgba(255,255,255,.75);border-bottom:1px solid transparent;}
.foot-links a:hover{color:#fff;border-bottom-color:var(--c-accent);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
  line-height:1.7;
}
@media (max-width:575.98px){
  .foot-bottom{flex-direction:column;}
}
.offcanvas-backdrop.show{opacity:.45;}

/* roulang page: category2 */
:root{
  --c-brand:#1D3B31;
  --c-brand-2:#2C5A47;
  --c-accent:#D97A2B;
  --c-moss:#7E9E72;
  --c-ink:#141A17;
  --c-ink-2:#4C5751;
  --c-bg:#F7F5F0;
  --c-bg-2:#EEEAE1;
  --c-line:#DCD7CB;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,23,.05);
  --sh-2:0 18px 40px -28px rgba(20,26,23,.35);
  --sec-y:56px;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;

  --bs-primary:#1D3B31;
  --bs-primary-rgb:29,59,49;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#141A17;
  --bs-border-color:#DCD7CB;
  --bs-link-color:#2C5A47;
  --bs-link-hover-color:#D97A2B;
}
@media (min-width:992px){ :root{ --sec-y:104px; } }

*{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:var(--c-brand-2); text-decoration:none; transition:color .22s ease, border-color .22s ease, background-color .22s ease; }
a:hover{ color:var(--c-accent); }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; color:var(--c-ink); font-weight:700; letter-spacing:.01em; }
p{ margin:0 0 1.15em; }
p:last-child{ margin-bottom:0; }
button{ font-family:inherit; }
:focus-visible{ outline:2px solid var(--c-accent); outline-offset:2px; border-radius:4px; }

.container{ width:100%; padding-left:16px; padding-right:16px; margin-left:auto; margin-right:auto; }
@media (min-width:576px){ .container{ max-width:540px; } }
@media (min-width:768px){ .container{ max-width:720px; padding-left:20px; padding-right:20px; } }
@media (min-width:992px){ .container{ max-width:960px; padding-left:24px; padding-right:24px; } }
@media (min-width:1200px){ .container{ max-width:1180px; } }
@media (min-width:1400px){ .container{ max-width:1220px; } }

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky; top:0; z-index:1030;
  background:var(--c-bg);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, box-shadow .3s ease, background-color .3s ease;
}
.site-header.scrolled{ border-bottom-color:var(--c-line); background:rgba(247,245,240,.96); backdrop-filter:saturate(140%) blur(6px); }
.head-inner{ display:flex; align-items:center; justify-content:space-between; gap:20px; height:64px; }
@media (min-width:992px){ .head-inner{ height:76px; } }
.brand{ display:inline-flex; align-items:center; gap:11px; color:var(--c-ink); }
.brand:hover{ color:var(--c-ink); }
.brand-mark{ width:30px; height:30px; color:var(--c-brand); flex:none; display:inline-flex; }
.brand-mark svg{ width:100%; height:100%; }
.brand-txt{ font-size:17px; font-weight:700; letter-spacing:.01em; white-space:nowrap; }
@media (max-width:400px){ .brand-txt{ font-size:15px; } }

.nav-links{ display:flex; align-items:center; }
.nav-links li{ display:flex; align-items:center; }
.nav-links li + li::before{ content:""; width:1px; height:14px; background:var(--c-line); margin:0 22px; display:inline-block; }
@media (min-width:1200px){ .nav-links li + li::before{ margin:0 28px; } }
.nav-links a{
  position:relative; display:inline-block; padding:6px 0;
  font-size:15px; letter-spacing:.02em; color:var(--c-ink-2);
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:100%; height:1px;
  background:var(--c-brand); transform:scaleX(0); transform-origin:left; transition:transform .32s ease;
}
.nav-links a:hover{ color:var(--c-ink); }
.nav-links a:hover::after{ transform:scaleX(1); }
.nav-links a.active{ color:var(--c-ink); font-weight:600; }
.nav-links a.active::after{ background:var(--c-accent); height:2px; transform:scaleX(1); }

.head-actions{ display:flex; align-items:center; gap:12px; }
.nav-toggle{
  width:44px; height:44px; border:1px solid var(--c-line); border-radius:var(--r-s);
  background:transparent; color:var(--c-ink); font-size:16px; display:inline-flex;
  align-items:center; justify-content:center; cursor:pointer; transition:.22s;
}
.nav-toggle:hover{ border-color:var(--c-brand); color:var(--c-brand); }

/* 移动端抽屉 */
.offcanvas.mnav{ background:var(--c-bg); width:320px; border-left:1px solid var(--c-line); }
.mnav .offcanvas-header{ padding:20px 22px; border-bottom:1px solid var(--c-line); }
.mnav .btn-close{ opacity:.5; }
.mnav .btn-close:hover{ opacity:1; }
.mnav .offcanvas-body{ display:flex; flex-direction:column; padding:8px 22px 26px; }
.mnav-links li{ border-bottom:1px solid var(--c-line); }
.mnav-links a{ display:block; padding:16px 0; font-size:17px; color:var(--c-ink-2); }
.mnav-links a.active{ color:var(--c-brand); font-weight:600; }
.mnav-foot{ margin-top:auto; padding-top:26px; }

/* ============ 按钮 ============ */
.btn-main,.btn-ghost{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 26px; border-radius:var(--r-pill);
  font-size:15px; font-weight:600; letter-spacing:.02em; cursor:pointer;
  transition:background-color .25s ease, border-color .25s ease, color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.btn-main{ background:var(--c-brand); border:1px solid var(--c-brand); color:#fff; }
.btn-main:hover{ background:var(--c-brand-2); border-color:var(--c-brand-2); color:#fff; transform:translateY(-1px); box-shadow:var(--sh-2); }
.btn-main:active{ transform:translateY(0); }
.btn-ghost{ background:transparent; border:1px solid var(--c-line); color:var(--c-ink); }
.btn-ghost:hover{ border-color:var(--c-brand); color:var(--c-brand); background:rgba(29,59,49,.04); }
.btn-sm-pill{ height:40px; padding:0 20px; font-size:14px; }
@media (max-width:575px){ .btn-main,.btn-ghost{ height:44px; padding:0 22px; } }
.tlink{
  display:inline-flex; align-items:center; gap:7px; font-size:14.5px; font-weight:600;
  color:var(--c-brand); border-bottom:1px solid var(--c-line); padding-bottom:2px;
}
.tlink:hover{ color:var(--c-accent); border-bottom-color:var(--c-accent); }
.tlink i{ font-size:12px; transition:transform .25s ease; }
.tlink:hover i{ transform:translateX(3px); }

/* ============ 首屏 ============ */
.page-hero{ position:relative; overflow:hidden; background:var(--c-brand); color:#fff; isolation:isolate; }
.page-hero .hero-bg{
  position:absolute; inset:0; z-index:-2;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover; background-position:center; background-color:var(--c-brand);
}
.page-hero::after{ content:""; position:absolute; inset:0; z-index:-1; background:rgba(29,59,49,.62); }
.hero-inner{ padding:72px 0 60px; max-width:860px; }
@media (min-width:992px){ .hero-inner{ padding:120px 0 104px; } }
.hero-tag{
  display:inline-block; padding:5px 14px; border:1px solid rgba(255,255,255,.42);
  border-radius:var(--r-s); font-size:12.5px; letter-spacing:.16em; color:rgba(255,255,255,.9); margin-bottom:22px;
}
.page-hero h1{
  color:#fff; font-size:clamp(28px,4.2vw,46px); line-height:1.26; font-weight:700; margin-bottom:18px;
}
.page-hero .hero-sub{
  color:rgba(255,255,255,.86); font-size:16px; line-height:1.9; max-width:720px; margin-bottom:34px;
}
.hero-stats{ display:flex; flex-wrap:wrap; gap:0; border-top:1px solid rgba(255,255,255,.22); padding-top:26px; }
.hero-stat{ padding:0 26px; border-left:1px solid rgba(255,255,255,.22); }
.hero-stat:first-child{ padding-left:0; border-left:0; }
.hero-stat .num{
  display:block; font-family:var(--font-num); font-size:24px; font-weight:700; color:#fff; line-height:1.3; letter-spacing:.01em;
}
.hero-stat .cap{ display:block; font-size:12.5px; color:rgba(255,255,255,.72); margin-top:4px; }
@media (max-width:575px){
  .hero-stat{ padding:0 16px; }
  .hero-stat .num{ font-size:19px; }
}

/* ============ 通用板块 ============ */
.sec{ padding:var(--sec-y) 0; }
.sec-line{ border-top:1px solid var(--c-line); }
.sec-h{
  position:relative; padding-left:16px; margin-bottom:18px;
  font-size:clamp(24px,3vw,34px); line-height:1.3; font-weight:700;
}
.sec-h::before{ content:""; position:absolute; left:0; top:.26em; width:3px; height:.92em; background:var(--c-accent); border-radius:2px; }
.sec-lead{ max-width:800px; color:var(--c-ink-2); font-size:16px; }
.eyebrow{
  display:inline-block; font-family:var(--font-num); font-size:12.5px; letter-spacing:.18em;
  color:var(--c-moss); text-transform:uppercase; margin-bottom:12px;
}
.split{ display:grid; grid-template-columns:1fr; gap:28px; }
@media (min-width:992px){ .split{ grid-template-columns:minmax(0,1fr) minmax(0,1.15fr); gap:64px; align-items:start; } }

/* 要点三栏 */
.point-grid{ display:grid; grid-template-columns:1fr; margin-top:38px; }
.point{ padding:26px 0; border-top:1px solid var(--c-line); border-bottom:1px solid var(--c-line); }
.point + .point{ border-top:0; }
.point .p-no{ font-family:var(--font-num); font-size:13px; color:var(--c-accent); font-weight:600; letter-spacing:.1em; }
.point h3{ font-size:19px; line-height:1.5; margin:10px 0 10px; }
.point p{ font-size:15px; line-height:1.85; color:var(--c-ink-2); }
@media (min-width:768px){
  .point-grid{ grid-template-columns:repeat(3,1fr); }
  .point{ padding:30px 28px; border-bottom:0; border-left:1px solid var(--c-line); border-top:1px solid var(--c-line); }
  .point + .point{ border-top:1px solid var(--c-line); }
  .point:first-child{ border-left:0; padding-left:0; }
  .point:last-child{ padding-right:0; }
}

/* ============ 卡片网格（图文交错） ============ */
.tile-grid{ display:grid; grid-template-columns:1fr; gap:26px; margin-top:40px; }
@media (min-width:768px){ .tile-grid{ grid-template-columns:1fr 1fr; gap:30px 28px; } }
.card-tile{
  display:flex; flex-direction:column; background:#fff; border:1px solid var(--c-line);
  border-radius:var(--r-m); overflow:hidden; box-shadow:var(--sh-1);
  transition:box-shadow .3s ease, transform .3s ease, border-color .3s ease;
}
.card-tile:hover{ box-shadow:var(--sh-2); transform:translateY(-3px); border-color:#CFC9BA; }
@media (min-width:768px){ .card-tile.rev{ flex-direction:column-reverse; } }
.card-tile .media{ aspect-ratio:16/9; overflow:hidden; background:var(--c-bg-2); }
.card-tile .media img{ width:100%; height:100%; object-fit:cover; transition:transform .6s ease; }
.card-tile:hover .media img{ transform:scale(1.03); }
.card-tile .body{ padding:24px 24px 26px; display:flex; flex-direction:column; gap:12px; flex:1; }
.card-tile .badge-moss{
  align-self:flex-start; padding:4px 11px; border-radius:var(--r-pill);
  background:rgba(126,158,114,.16); color:#4E6B45; font-size:11.5px; letter-spacing:.06em;
}
.card-tile h3{ font-size:19px; line-height:1.5; }
.card-tile .body p{ font-size:15px; line-height:1.85; color:var(--c-ink-2); margin:0; }
.card-tile .tlink{ margin-top:auto; }

/* ============ 条件清单 ============ */
.spec-wrap{ margin-top:36px; border-top:1px solid var(--c-line); }
.spec-row{ display:grid; grid-template-columns:1fr; gap:6px; padding:22px 0; border-bottom:1px solid var(--c-line); }
@media (min-width:768px){
  .spec-row{ grid-template-columns:260px minmax(0,1fr); gap:32px; padding:24px 0; align-items:baseline; }
}
.spec-key{ display:flex; align-items:baseline; gap:12px; font-size:16px; font-weight:600; color:var(--c-ink); }
.spec-key .idx{ font-family:var(--font-num); font-size:12.5px; color:var(--c-accent); letter-spacing:.1em; }
.spec-val{ font-size:15px; line-height:1.85; color:var(--c-ink-2); }

/* ============ 流程 ============ */
.steps{ display:grid; grid-template-columns:1fr; gap:0; margin-top:36px; }
.step{ position:relative; padding:24px 0 24px 30px; border-left:1px solid var(--c-line); }
.step:first-child{ padding-top:6px; }
.step:last-child{ padding-bottom:6px; }
.step::before{
  content:""; position:absolute; left:-4.5px; top:32px; width:8px; height:8px; border-radius:50%;
  background:var(--c-bg); border:2px solid var(--c-moss);
}
.step:first-child::before{ top:14px; background:var(--c-accent); border-color:var(--c-accent); }
.step .st-no{ font-family:var(--font-num); font-size:12.5px; letter-spacing:.14em; color:var(--c-moss); }
.step h3{ font-size:18px; margin:8px 0 8px; }
.step p{ font-size:15px; line-height:1.85; color:var(--c-ink-2); }
@media (min-width:992px){
  .steps{ grid-template-columns:repeat(4,1fr); gap:26px; }
  .step{ padding:28px 0 0 0; border-left:0; border-top:1px solid var(--c-line); }
  .step::before{ left:0; top:-4.5px; }
  .step:first-child::before{ top:-4.5px; }
  .step:first-child,.step:last-child{ padding-top:28px; padding-bottom:0; }
}

/* ============ 数据通栏 ============ */
.stat-band{ background:var(--c-brand); color:#fff; }
.stat-band .inner{ padding:56px 0; }
@media (min-width:992px){ .stat-band .inner{ padding:76px 0; } }
.stat-band .band-title{ color:#fff; font-size:clamp(20px,2.4vw,26px); margin-bottom:8px; }
.stat-band .band-sub{ color:rgba(255,255,255,.72); font-size:14.5px; }
.band-grid{ display:grid; grid-template-columns:1fr 1fr; gap:0; margin-top:34px; }
.band-item{ padding:18px 20px; border-top:1px solid rgba(255,255,255,.18); }
.band-item:nth-child(odd){ padding-left:0; }
.band-item:nth-child(even){ border-left:1px solid rgba(255,255,255,.18); }
.band-item .num{ display:block; font-family:var(--font-num); font-size:26px; font-weight:700; color:#fff; line-height:1.3; }
.band-item .cap{ display:block; font-size:13px; color:rgba(255,255,255,.7); margin-top:6px; line-height:1.7; }
@media (min-width:992px){
  .band-grid{ grid-template-columns:repeat(4,1fr); }
  .band-item{ padding:20px 26px; }
  .band-item:nth-child(even){ border-left:1px solid rgba(255,255,255,.18); }
  .band-item:first-child{ padding-left:0; }
  .band-item:not(:first-child){ border-left:1px solid rgba(255,255,255,.18); }
}

/* ============ FAQ ============ */
.faq-wrap{ margin-top:34px; max-width:880px; }
.faq-acc .accordion-item{ background:transparent; border:0; border-top:1px solid var(--c-line); }
.faq-acc .accordion-item:last-child{ border-bottom:1px solid var(--c-line); }
.faq-acc .accordion-header{ margin:0; }
.faq-acc .accordion-button{
  background:transparent; color:var(--c-ink); font-size:17px; font-weight:600; line-height:1.6;
  padding:22px 44px 22px 0; border:0; box-shadow:none; border-radius:0;
}
.faq-acc .accordion-button:not(.collapsed){ color:var(--c-brand); background:transparent; box-shadow:none; }
.faq-acc .accordion-button:focus{ box-shadow:none; outline:2px solid var(--c-accent); outline-offset:-2px; }
.faq-acc .accordion-button::after{
  content:""; flex:none; width:16px; height:16px; margin-left:auto; position:absolute; right:0; top:26px;
  background-image:linear-gradient(var(--c-accent),var(--c-accent)),linear-gradient(var(--c-accent),var(--c-accent));
  background-position:center,center;
  background-size:16px 1.6px,1.6px 16px;
  background-repeat:no-repeat;
  transition:transform .3s ease, background-size .3s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background-size:16px 1.6px,1.6px 0;
}
.faq-acc .accordion-body{ padding:0 44px 26px 0; font-size:15px; line-height:1.85; color:var(--c-ink-2); }

/* ============ 尾部 CTA ============ */
.cta-band{ position:relative; overflow:hidden; background:var(--c-bg-2); border-top:1px solid var(--c-line); }
.cta-band .cta-inner{
  display:flex; flex-direction:column; gap:24px; align-items:flex-start;
  padding:56px 0;
}
@media (min-width:992px){
  .cta-band .cta-inner{ flex-direction:row; align-items:center; justify-content:space-between; padding:76px 0; gap:48px; }
}
.cta-band h2{ font-size:clamp(22px,2.8vw,30px); margin-bottom:10px; }
.cta-band p{ color:var(--c-ink-2); font-size:15px; max-width:620px; margin:0; }
.cta-actions{ display:flex; flex-wrap:wrap; gap:14px; flex:none; }

/* ============ 页脚 ============ */
.site-footer{ background:var(--c-brand); color:rgba(255,255,255,.8); padding:64px 0 0; }
.foot-grid{ display:grid; grid-template-columns:1fr; gap:36px; }
@media (min-width:768px){ .foot-grid{ grid-template-columns:1fr 1fr; gap:40px; } }
@media (min-width:992px){
  .foot-grid{ grid-template-columns:1.7fr 1fr 1fr 1fr; gap:0; }
  .foot-col{ padding:0 32px; }
  .foot-col:first-child{ padding-left:0; }
  .foot-col:last-child{ padding-right:0; }
  .foot-col:not(:first-child){ border-left:1px solid rgba(255,255,255,.14); }
}
.foot-brand{ color:#fff; }
.foot-brand:hover{ color:#fff; }
.foot-brand .brand-mark{ color:rgba(255,255,255,.9); }
.site-footer h4{ color:#fff; font-size:15px; letter-spacing:.04em; margin-bottom:18px; }
.foot-desc{ font-size:14px; line-height:1.9; color:rgba(255,255,255,.7); margin:18px 0 16px; max-width:380px; }
.foot-contact{ font-size:13.5px; line-height:1.95; color:rgba(255,255,255,.66); }
.foot-contact i{ margin-right:6px; color:var(--c-moss); }
.foot-links li{ margin-bottom:11px; }
.foot-links a{ font-size:14px; color:rgba(255,255,255,.76); }
.foot-links a:hover{ color:#fff; border-bottom:1px solid var(--c-accent); padding-bottom:2px; }
.foot-bottom{
  margin-top:52px; border-top:1px solid rgba(255,255,255,.14); padding:20px 0 26px;
  display:flex; flex-direction:column; gap:8px; font-size:13px; color:rgba(255,255,255,.6);
}
@media (min-width:768px){ .foot-bottom{ flex-direction:row; justify-content:space-between; align-items:center; } }

/* 图片失败占位 */
img{ background-color:var(--c-bg-2); }