/* roulang page: index */
:root{
  --c-primary:#4C7A2B;
  --c-primary-dark:#35591C;
  --c-primary-light:#EAF1DF;
  --c-accent:#E4B23C;
  --c-accent-deep:#A87B18;
  --c-accent-light:#FBF0D2;
  --c-earth:#7A5230;
  --c-ink:#1C1F17;
  --c-ink-2:#5A5F52;
  --c-ink-3:#8A8F80;
  --bg:#FAF7EF;
  --bg-alt:#F1EDE2;
  --card:#FFFFFF;
  --line:#E2DCCB;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --sh-1:0 1px 2px rgba(28,31,23,.05);
  --sh-2:0 10px 28px rgba(28,31,23,.10);
  --sh-3:0 8px 24px rgba(76,122,43,.28);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:var(--c-primary-light);color:var(--c-primary-dark);}

/* ---------- 容器与通用 ---------- */
.site-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.sec{padding:104px 0;}
.sec-alt{background:var(--bg-alt);}
.sec-head{max-width:760px;margin-bottom:52px;}
.sec-head h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px;}
.sec-head p{color:var(--c-ink-2);margin:0;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-primary);
  margin-bottom:14px;
}
section[id]{scroll-margin-top:80px;}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  color:#fff;
  background:var(--c-primary);
  border:1px solid var(--c-primary);
  border-radius:999px;
  cursor:pointer;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-main:hover,.btn-main:focus{
  background:var(--c-primary-dark);
  border-color:var(--c-primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  color:var(--c-primary);
  background:transparent;
  border:1px solid var(--c-primary);
  border-radius:999px;
  cursor:pointer;
  transition:background .22s ease,transform .22s ease,border-color .22s ease,color .22s ease;
}
.btn-ghost:hover,.btn-ghost:focus{
  background:var(--c-primary-light);
  border-color:var(--c-primary);
  color:var(--c-primary-dark);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-main:disabled,.btn-ghost:disabled{opacity:.5;box-shadow:none;transform:none;cursor:not-allowed;}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  transition:transform .22s ease,color .22s ease;
}
.arrow-link:hover{color:var(--c-primary-dark);transform:translateX(3px);}

/* ---------- 徽章 ---------- */
.badge-tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  font-size:12.5px;
  font-weight:600;
  color:var(--c-primary-dark);
  background:var(--c-primary-light);
  border-radius:999px;
  letter-spacing:.02em;
}
.badge-tag.accent{background:var(--c-accent-light);color:var(--c-accent-deep);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(28,31,23,.08);}
.nav-inner{
  display:grid;
  grid-template-columns:7fr 1px 5fr;
  align-items:center;
  gap:26px;
  height:var(--nav-h);
}
.nav-left{display:flex;align-items:center;gap:26px;min-width:0;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--c-ink);
  white-space:nowrap;
  letter-spacing:0;
}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:30px;
  height:30px;
  border-radius:9px;
  background:var(--c-primary);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:15px;
  font-weight:800;
  flex:0 0 30px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text small{font-size:11px;font-weight:500;color:var(--c-ink-3);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:22px;min-width:0;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-2);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-divider{width:1px;height:24px;background:var(--line);}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  max-width:248px;
  height:40px;
  padding:0 14px;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(76,122,43,.12);}
.nav-search i{color:var(--c-ink-3);font-size:13px;}
.nav-search input{
  width:100%;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--c-ink);
  outline:none;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  color:var(--c-ink);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 移动端抽屉 */
.offcanvas.drawer{width:84vw;max-width:340px;background:#fff;border-left:1px solid var(--line);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-list{padding:8px 0;flex:1 1 auto;overflow-y:auto;}
.drawer-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:44px;
  padding:0 20px;
  font-size:15.5px;
  color:var(--c-ink-2);
  border-left:3px solid transparent;
}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-light);}
.drawer-foot{padding:16px 20px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--line);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:80px 0 96px;
  background:linear-gradient(180deg,#FAF7EF 0%,#EAF1DF 100%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{
  font-size:42px;
  line-height:1.25;
  font-weight:800;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;
  color:var(--c-ink-2);
  max-width:640px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:40px;}
.fact{min-width:120px;}
.fact-num{
  display:block;
  font-size:26px;
  font-weight:800;
  line-height:1.2;
  color:var(--c-accent-deep);
}
.fact-num i{font-size:14px;font-weight:600;color:var(--c-ink-3);font-style:normal;margin-left:2px;}
.fact-label{font-size:13.5px;color:var(--c-ink-2);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
}
.hero-visual::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-lg);
  background:rgba(76,122,43,.10);
  pointer-events:none;
}
.hero-visual::after{
  content:"";
  position:absolute;
  right:-14px;
  bottom:-14px;
  width:58%;
  height:58%;
  border:2px solid rgba(76,122,43,.45);
  border-radius:var(--r-lg);
  pointer-events:none;
}
.hero-float{
  position:absolute;
  left:18px;
  bottom:18px;
  max-width:236px;
  padding:14px 18px;
  background:#fff;
  border-left:3px solid var(--c-primary);
  border-radius:var(--r-sm);
  box-shadow:var(--sh-2);
}
.hero-float strong{display:block;font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.5;}
.hero-float span{font-size:12.5px;color:var(--c-ink-3);}

/* ---------- 卖点 ---------- */
.features-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.feature-item{
  display:flex;
  gap:16px;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  margin-bottom:16px;
}
.feature-item:last-child{margin-bottom:0;}
.feature-item:hover{transform:translateX(4px);border-color:var(--c-primary);box-shadow:var(--sh-2);}
.feature-icon{
  flex:0 0 42px;
  width:42px;height:42px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:var(--c-primary-light);
  color:var(--c-primary);
  font-size:17px;
}
.feature-item h3{font-size:17.5px;font-weight:600;margin-bottom:4px;}
.feature-item p{margin:0;font-size:14.5px;line-height:1.75;color:var(--c-ink-2);}
.features-visual img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
}

/* ---------- 演示步骤 ---------- */
.demo-track{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:8px 0 20px;
  scrollbar-width:thin;
}
.demo-track::-webkit-scrollbar{height:6px;}
.demo-track::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
.demo-step{
  position:relative;
  flex:0 0 306px;
  scroll-snap-align:start;
  padding-top:38px;
}
.demo-step::before{
  content:"";
  position:absolute;
  top:13px;
  left:34px;
  right:-24px;
  height:2px;
  background:var(--line);
}
.demo-step:last-child::before{display:none;}
.demo-dot{
  position:absolute;
  top:0;left:0;
  width:28px;height:28px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  font-size:13px;
  font-weight:700;
}
.demo-step img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-sm);
  margin-bottom:16px;
}
.demo-step h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.demo-step p{margin:0;font-size:14.5px;line-height:1.8;color:var(--c-ink-2);}

/* ---------- 证据 ---------- */
.metric-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:32px 28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  margin-bottom:32px;
}
.metric{text-align:left;border-left:3px solid var(--c-primary-light);padding-left:18px;}
.metric strong{
  display:block;
  font-size:32px;
  font-weight:800;
  line-height:1.2;
  color:var(--c-accent-deep);
}
.metric strong em{font-size:15px;font-style:normal;font-weight:600;color:var(--c-ink-3);margin-left:4px;}
.metric span{font-size:14px;color:var(--c-ink-2);}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px;}
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.quote-card{
  padding:24px;
  background:var(--bg-alt);
  border-left:3px solid var(--c-primary);
  border-radius:var(--r-md);
}
.quote-card p{font-size:15.5px;color:var(--c-ink);margin-bottom:14px;}
.quote-card cite{font-size:13px;font-style:normal;color:var(--c-ink-3);}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-light);}
.news-thumb{display:block;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body .badge-tag{align-self:flex-start;margin-bottom:12px;}
.news-title{font-size:18px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.news-title a{color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card:hover .news-title a{color:var(--c-primary);}
.news-desc{
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-ink-2);
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--c-ink-3);
}
.news-empty{
  padding:56px 24px;
  text-align:center;
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  background:var(--bg-alt);
}
.news-empty p{font-size:15px;color:var(--c-ink-2);margin-bottom:18px;}
.news-empty .btn-ghost{background:#fff;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  position:relative;
  display:flex;
  flex-direction:column;
  padding:30px 26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.price-card.is-featured{
  border-top:6px solid var(--c-primary);
  box-shadow:0 16px 36px rgba(28,31,23,.12);
}
@media (min-width:992px){
  .price-card.is-featured{transform:scale(1.03);}
  .price-card.is-featured:hover{transform:scale(1.03) translateY(-2px);}
}
.price-card h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.price-card .price-note{font-size:13.5px;color:var(--c-ink-3);margin-bottom:20px;}
.price-value{
  font-size:34px;
  font-weight:800;
  line-height:1.1;
  color:var(--c-accent-deep);
  margin-bottom:22px;
}
.price-value em{font-size:14px;font-style:normal;font-weight:600;color:var(--c-ink-3);margin-left:4px;}
.price-list{margin-bottom:26px;}
.price-list li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--c-ink-2);
  margin-bottom:8px;
}
.price-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--c-primary-light);
  border:2px solid var(--c-primary);
}
.price-card .btn-main,.price-card .btn-ghost{margin-top:auto;width:100%;}

/* ---------- FAQ ---------- */
.faq-acc{border-radius:var(--r-md);overflow:hidden;}
.faq-acc .accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  display:flex;
  align-items:center;
  width:100%;
  min-height:56px;
  padding:14px 22px;
  font-size:16.5px;
  font-weight:600;
  color:var(--c-ink);
  background:#fff;
  border:0;
  box-shadow:none;
  transition:color .2s ease,background .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-primary-dark);
  background:var(--c-primary-light);
  box-shadow:none;
  border-left:3px solid var(--c-primary);
}
.faq-acc .accordion-button:hover{color:var(--c-primary);}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  flex:0 0 24px;
  width:24px;height:24px;
  margin-left:auto;
  background-image:none;
  content:"+";
  font-size:22px;
  line-height:1;
  color:var(--c-primary);
  display:grid;
  place-items:center;
  transform:none;
  transition:transform .25s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-acc .accordion-body{
  padding:18px 22px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--bg-alt);
  border-left:3px solid var(--c-primary);
}
.faq-acc .accordion-body p:last-child{margin-bottom:0;}

/* ---------- 结尾转化带 ---------- */
.cta-band{
  padding:64px 48px;
  background:var(--c-primary);
  border-radius:var(--r-lg);
  color:#fff;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{color:#fff;font-size:28px;line-height:1.4;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.86);margin:0;font-size:15.5px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-band .btn-main{background:#fff;border-color:#fff;color:var(--c-primary-dark);}
.cta-band .btn-main:hover{background:var(--c-accent-light);border-color:var(--c-accent-light);color:var(--c-accent-deep);}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}

/* ---------- 表单 ---------- */
.form-panel{
  padding:28px 26px;
  background:var(--bg-alt);
  border-left:3px solid var(--c-primary);
  border-radius:var(--r-md);
}
.form-panel label{display:block;font-size:13px;color:var(--c-ink-3);margin-bottom:6px;}
.form-panel .field{margin-bottom:16px;}
.form-panel input,.form-panel textarea{
  width:100%;
  padding:0 14px;
  height:44px;
  font-size:15px;
  color:var(--c-ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-panel textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-panel input:focus,.form-panel textarea:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(76,122,43,.15);
}
.form-panel .err{font-size:12.5px;color:var(--c-earth);margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#1C1F17;color:#E7E4DA;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.site-footer p{color:#A9AC9F;font-size:14.5px;line-height:1.8;}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  position:relative;
  font-size:14.5px;
  color:#A9AC9F;
  border-bottom:3px solid transparent;
  padding-bottom:1px;
  transition:color .2s ease,border-color .2s ease;
}
.footer-links a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.footer-contact li{font-size:14.5px;color:#A9AC9F;margin-bottom:10px;}
.footer-contact i{color:var(--c-primary);margin-right:8px;font-size:13px;width:16px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:#8A8F80;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:1040;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn-main{box-shadow:var(--sh-3);border:1px solid var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .hero-grid{gap:44px;}
}
@media (max-width:1199px){
  .site-container{max-width:1140px;}
  .hero-grid{grid-template-columns:1.1fr 1fr;gap:40px;}
  .hero h1{font-size:38px;}
  .nav-links{gap:16px;}
  .nav-links a{font-size:14px;}
  .nav-search{max-width:190px;}
  .news-foot{font-size:12.5px;}
}
@media (max-width:991px){
  .sec{padding:72px 0;}
  .sec-head{margin-bottom:38px;}
  .sec-head h2{font-size:26px;}
  .nav-inner{grid-template-columns:1fr auto;gap:14px;}
  .nav-divider,.nav-search{display:none;}
  .nav-left{gap:0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:34px;}
  .hero-visual::after{display:none;}
  .features-grid{grid-template-columns:1fr;gap:36px;}
  .features-visual img{aspect-ratio:16/10;order:-1;}
  .metric-band{grid-template-columns:repeat(2,1fr);gap:20px;}
  .quote-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;gap:20px;}
  .cta-band{grid-template-columns:1fr;padding:44px 28px;}
  .cta-band .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .sec{padding:60px 0;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-facts{gap:24px;}
  .fact{min-width:100px;}
  .fact-num{font-size:22px;}
  .demo-track{flex-direction:column;gap:28px;overflow:visible;}
  .demo-step{flex:1 1 auto;width:100%;padding-top:0;padding-left:44px;}
  .demo-step::before{top:30px;left:13px;right:auto;bottom:-30px;width:2px;height:auto;}
  .demo-step:last-child::before{display:none;}
  .metric-band{grid-template-columns:1fr;padding:24px 20px;}
  .cta-band h2{font-size:23px;}
  .cta-band .cta-actions .btn-main,.cta-band .cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:576px){
  .site-container{padding-left:18px;padding-right:18px;}
  .sec{padding:56px 0;}
  .sec-head h2{font-size:23px;}
  .hero{padding:44px 0 56px;}
  .hero h1{font-size:25px;line-height:1.35;}
  .hero-float{position:static;margin-top:16px;max-width:none;}
  .hero-visual::before{border-radius:var(--r-md);}
  .hero-visual img{border-radius:var(--r-md);}
  .cta-band{padding:34px 22px;border-radius:var(--r-md);}
  .price-value{font-size:30px;}
  .faq-acc .accordion-button{font-size:15.5px;padding:12px 18px;}
  .float-cta{left:0;right:0;bottom:0;}
  .float-cta .btn-main{
    width:100%;
    height:56px;
    border-radius:0;
    border:0;
    padding-bottom:env(safe-area-inset-bottom);
  }
  body{padding-bottom:56px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --c-primary:#4C7A2B;
  --c-primary-dark:#35591C;
  --c-primary-light:#EAF1DF;
  --c-accent:#E4B23C;
  --c-accent-light:#FBF0D2;
  --c-earth:#7A5230;
  --c-ink:#1C1F17;
  --c-ink-2:#5A5F52;
  --c-ink-3:#8A8F80;
  --c-bg:#FAF7EF;
  --c-bg-alt:#F1EDE2;
  --c-card:#FFFFFF;
  --c-line:#E2DCCB;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --sh-1:0 1px 2px rgba(28,31,23,.05);
  --sh-2:0 10px 28px rgba(28,31,23,.10);
  --sh-3:0 8px 24px rgba(76,122,43,.28);
  --sp-section:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--c-ink)}
p{margin:0}
section{scroll-margin-top:80px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:6px;
}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  font-weight:600;
  color:var(--c-primary);
  margin-bottom:12px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(28,31,23,.09)}
.header-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  align-items:center;
  height:64px;
}
.header-left{display:flex;align-items:center;gap:26px;min-width:0}
.header-right{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:14px;
  padding-left:28px;
}
.header-right::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:1px;height:28px;
  background:var(--c-line);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  flex:0 0 34px;
  border-radius:11px;
  background:var(--c-primary);
  color:#fff;
  font-size:16px;
  font-weight:800;
  letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:800;color:var(--c-ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--c-ink-2);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-light)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-xs);
  background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(76,122,43,.14)}
.nav-search i{color:var(--c-ink-3);font-size:13px}
.nav-search input{
  width:150px;
  border:0;
  background:transparent;
  font-size:14px;
  line-height:1.2;
  padding:0;
}
.nav-search input:focus{outline:none}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:var(--r-xs);
  background:#fff;
  color:var(--c-ink);
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ============ 按钮与标签 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  text-align:center;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn:disabled{opacity:.5;box-shadow:none;transform:none;cursor:not-allowed}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-accent{background:var(--c-accent);color:#3A2A08;box-shadow:var(--sh-1)}
.btn-accent:hover{background:#D3A230;color:#3A2A08;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-pill{border-radius:999px}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--c-primary);
  font-weight:600;
  font-size:15px;
  transition:transform .2s ease,color .2s ease;
}
.text-link:hover{transform:translateX(3px);color:var(--c-primary-dark)}
.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  background:var(--c-primary-light);
  color:var(--c-primary);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}

/* ============ 面包屑与文章头 ============ */
.article-hero{
  background:linear-gradient(180deg,#FAF7EF 0%,#EAF1DF 100%);
  padding:36px 0 44px;
  border-bottom:1px solid var(--c-line);
}
.breadcrumb-nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--c-ink-3);
  margin-bottom:22px;
}
.breadcrumb-nav a{color:var(--c-ink-3);transition:color .2s ease}
.breadcrumb-nav a:hover{color:var(--c-primary)}
.breadcrumb-nav .sep{color:#C9C2AF}
.breadcrumb-nav .current{color:var(--c-ink-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:860px}
.article-head h1{
  font-size:40px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:0;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:20px;
  font-size:14px;
  color:var(--c-ink-3);
}
.article-meta .divider{width:1px;height:14px;background:var(--c-line)}
.article-meta i{font-size:12.5px;margin-right:5px;color:var(--c-ink-3)}

/* ============ 正文布局 ============ */
.article-main{padding:52px 0 8px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
}
.article-body{
  max-width:760px;
  font-size:16.5px;
  line-height:1.9;
  color:#2A2E24;
}
.article-body > * + *{margin-top:1em}
.article-body p{margin:0}
.article-body h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  margin:48px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--c-primary);
  color:var(--c-ink);
}
.article-body h3{
  font-size:21px;
  line-height:1.45;
  font-weight:600;
  margin:32px 0 12px;
  color:var(--c-ink);
}
.article-body h4{
  font-size:17.5px;
  line-height:1.5;
  font-weight:600;
  margin:24px 0 10px;
  color:var(--c-primary-dark);
}
.article-body ul{margin:1em 0;padding:0}
.article-body ul > li{
  position:relative;
  padding-left:20px;
  margin-bottom:8px;
  line-height:1.8;
}
.article-body ul > li::before{
  content:"";
  position:absolute;
  left:3px;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--c-primary);
}
.article-body ol{counter-reset:artlist;margin:1em 0;padding:0}
.article-body ol > li{
  position:relative;
  padding-left:30px;
  margin-bottom:10px;
  line-height:1.8;
  counter-increment:artlist;
}
.article-body ol > li::before{
  content:counter(artlist);
  position:absolute;
  left:0;top:.28em;
  width:20px;height:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:6px;
  background:var(--c-primary-light);
  color:var(--c-primary);
  font-size:12.5px;
  font-weight:700;
}
.article-body blockquote{
  margin:1.5em 0;
  padding:18px 22px;
  background:var(--c-primary-light);
  border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-style:normal;
  color:var(--c-ink-2);
}
.article-body blockquote p{margin:0}
.article-body img{
  max-width:100%;
  height:auto;
  border-radius:12px;
  margin:1.5em 0 .6em;
}
.article-body figure{margin:1.5em 0}
.article-body figcaption,
.article-body .img-caption{
  font-size:13px;
  line-height:1.7;
  color:var(--c-ink-3);
  text-align:left;
  margin-top:-.4em;
}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(76,122,43,.35)}
.article-body a:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary-dark)}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
  border:1px solid var(--c-line);
  border-radius:12px;
  overflow:hidden;
}
.article-body thead th{
  background:var(--c-bg-alt);
  color:var(--c-primary-dark);
  font-weight:600;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--c-line);
}
.article-body tbody td{
  padding:12px 14px;
  border-bottom:1px solid var(--c-line);
  color:var(--c-ink-2);
}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{
  border:0;
  border-top:1px solid var(--c-line);
  margin:2em 0;
}
.article-body .data-block{
  background:var(--c-bg-alt);
  border-radius:var(--r-sm);
  padding:20px 22px;
  margin:1.5em 0;
}
.article-empty{
  background:#fff;
  border:1px dashed var(--c-line);
  border-radius:var(--r-md);
  padding:56px 28px;
  text-align:center;
}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--c-ink-2);font-size:15px;margin-bottom:22px}

/* ============ 侧栏 ============ */
.article-aside{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:16px;
  font-weight:700;
  padding-bottom:12px;
  margin-bottom:14px;
  border-bottom:1px solid var(--c-line);
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h3 i{color:var(--c-primary);font-size:14px}
.toc-list a{
  display:block;
  padding:9px 10px;
  font-size:14.5px;
  line-height:1.6;
  color:var(--c-ink-2);
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:color .2s ease,border-color .2s ease,padding-left .2s ease,background .2s ease;
}
.toc-list a:hover{
  color:var(--c-primary);
  border-left-color:var(--c-primary);
  background:var(--c-primary-light);
  padding-left:14px;
}
.toc-empty{font-size:14px;color:var(--c-ink-3);line-height:1.8}
.side-facts li{
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:14.5px;
  padding:9px 0;
  border-bottom:1px dashed var(--c-line);
  color:var(--c-ink-2);
}
.side-facts li:last-child{border-bottom:0}
.side-facts strong{color:var(--c-primary);font-weight:700}
.side-cta{
  background:var(--c-bg-alt);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-primary);
  border-radius:var(--r-sm);
  padding:20px;
}
.side-cta h3{font-size:16px;margin-bottom:8px;border:0;padding:0}
.side-cta p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin-bottom:16px}

/* ============ 相关推荐 ============ */
.related{padding:64px 0 0}
.section-heading{margin-bottom:28px}
.section-heading h2{font-size:28px;line-height:1.35;font-weight:700}
.section-heading p{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:680px}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5CDB8}
.post-card:hover h3{color:var(--c-primary)}
.post-cover{aspect-ratio:16/9;background:var(--c-primary-light);overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
  padding:20px;
}
.post-body h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  margin:0;
  transition:color .2s ease;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-body p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:12px;
  border-top:1px solid var(--c-line);
  font-size:13.5px;
  color:var(--c-ink-3);
}
.post-foot .arrow{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}

/* ============ 返回入口 ============ */
.back-row{padding:36px 0 0;display:flex;justify-content:flex-start}

/* ============ 转化带 ============ */
.cta-section{padding:72px 0 96px}
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:40px 44px;
  border-radius:var(--r-lg);
  background:var(--c-primary-dark);
  color:#F2EFE3;
  box-shadow:var(--sh-2);
}
.cta-band h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:#D6DBC8;max-width:620px}
.cta-band .btn{flex:0 0 auto}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:1040;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--c-primary);
  color:var(--c-primary);
  font-size:15px;
  font-weight:600;
  box-shadow:var(--sh-1);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .2s ease,color .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary-dark)}

/* ============ 移动端抽屉 ============ */
.offcanvas.offcanvas-end{
  width:84vw;
  max-width:340px;
  background:#fff;
  border-left:1px solid var(--c-line);
}
.offcanvas-header{
  padding:16px 20px;
  border-bottom:1px solid var(--c-line);
}
.offcanvas-header .brand-text{font-size:16px}
.offcanvas-title{margin:0}
.offcanvas-body{padding:8px 20px 20px}
.mobile-nav a{
  display:flex;
  align-items:center;
  height:44px;
  padding:0 2px;
  font-size:16px;
  color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
  transition:color .2s ease,padding-left .2s ease;
}
.mobile-nav a:hover{color:var(--c-primary);padding-left:8px}
.mobile-nav a.is-active{color:var(--c-primary);font-weight:600}
.offcanvas-foot{
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--c-line);
}
.offcanvas-foot .btn{width:100%}

/* ============ 页脚 ============ */
.site-footer{background:#1C1F17;color:#EDEADD;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:1.45fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--c-primary);color:#fff}
.site-footer p{font-size:14.5px;line-height:1.85;color:#B9BCAE}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{
  display:inline-block;
  font-size:14.5px;
  color:#B9BCAE;
  transition:color .2s ease;
}
.footer-links a::after{
  content:"";
  display:block;
  width:0;
  height:3px;
  border-radius:2px;
  background:var(--c-accent);
  transition:width .25s ease;
}
.footer-links a:hover{color:var(--c-accent)}
.footer-links a:hover::after{width:100%}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:#B9BCAE;
  margin-bottom:12px;
  line-height:1.7;
}
.footer-contact i{color:var(--c-accent);font-size:13px;margin-top:5px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 24px;
  border-top:1px solid rgba(226,220,203,.16);
  font-size:13.5px;
  color:#8A8F80;
}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .site-container{max-width:1140px}
}
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .article-aside > *{flex:1 1 300px}
  .article-body{max-width:100%}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  :root{--sp-section:72px}
  .header-inner{grid-template-columns:1fr auto;height:56px}
  .nav-links{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .header-right{padding-left:0}
  .header-right::before{display:none}
  .article-head h1{font-size:32px}
  .article-hero{padding:28px 0 34px}
  .breadcrumb-nav .current{max-width:240px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .article-body h2{font-size:24px;margin-top:38px}
  .article-body h3{font-size:19px}
  .article-main{padding:36px 0 0}
  .section-heading h2,.cta-band h2{font-size:23px}
  .float-cta{right:16px;bottom:16px}
}
@media (max-width:575.98px){
  body{padding-bottom:64px}
  .site-container{padding:0 18px}
  .brand-text{font-size:15.5px;white-space:normal}
  .article-head h1{font-size:26px;line-height:1.35}
  .article-meta{gap:10px;font-size:13.5px}
  .article-hero{padding:22px 0 28px}
  .breadcrumb-nav{font-size:13px;gap:8px}
  .article-body{font-size:16px}
  .cta-band{padding:26px 22px;border-radius:var(--r-md)}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .float-cta{
    left:0;right:0;bottom:0;
    justify-content:center;
    padding:16px 18px calc(16px + env(safe-area-inset-bottom));
    border-radius:0;
    border-left:0;
    border-right:0;
    border-bottom:0;
    box-shadow:0 -6px 20px rgba(28,31,23,.14);
  }
}

/* roulang page: category1 */
:root{
  --c-primary:#4C7A2B;
  --c-primary-dark:#35591C;
  --c-primary-light:#EAF1DF;
  --c-accent:#E4B23C;
  --c-accent-light:#FBF0D2;
  --c-earth:#7A5230;
  --c-ink:#1C1F17;
  --c-ink-2:#5A5F52;
  --c-ink-3:#8A8F80;
  --bg:#FAF7EF;
  --bg-alt:#F1EDE2;
  --card:#FFFFFF;
  --line:#E2DCCB;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --sh-1:0 1px 2px rgba(28,31,23,.05);
  --sh-2:0 10px 28px rgba(28,31,23,.10);
  --sh-3:0 8px 24px rgba(76,122,43,.28);
  --container:1200px;
  --font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:0;}
h1{font-size:42px;line-height:1.25;font-weight:800;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
p{margin:0 0 1em;color:var(--c-ink-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{border:0;background:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.site-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;scroll-margin-top:80px;}
.section.alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--c-primary);
  font-weight:600;
  margin-bottom:12px;
}
.lead{font-size:17px;line-height:1.85;color:var(--c-ink-2);}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  background:var(--c-primary-light);
  color:var(--c-primary-dark);
  font-size:12.5px;
  font-weight:600;
  line-height:1;
}
.tag.accent{background:var(--c-accent-light);color:#8A6516;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-primary:hover{
  background:var(--c-primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.btn-ghost{
  background:transparent;
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-ghost:hover{
  background:var(--c-primary-light);
  color:var(--c-primary-dark);
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;border-radius:var(--r-xs);}
.btn:disabled,.btn.disabled{opacity:.5;box-shadow:none;pointer-events:none;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-weight:600;
  font-size:15px;
}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(3px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 20px rgba(28,31,23,.08);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:64px;
}
.header-left{
  display:flex;
  align-items:center;
  gap:28px;
  flex:7 1 0;
  min-width:0;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  color:var(--c-ink);
  white-space:nowrap;
}
.brand:hover{color:var(--c-primary-dark);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:9px;
  background:var(--c-primary);
  color:#fff;
  font-size:16px;
  font-weight:800;
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:24px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--c-ink-2);
  font-weight:500;
  padding:20px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:14px;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-right{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:12px;
  flex:5 1 0;
  padding-left:24px;
  border-left:1px solid var(--line);
}
.header-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  background:var(--bg);
  min-width:200px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.header-search i{color:var(--c-ink-3);font-size:14px;}
.header-search input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  font-size:14.5px;
  color:var(--c-ink);
}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search:focus-within{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(76,122,43,.14);
  background:#fff;
}
.header-cta{white-space:nowrap;}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border-radius:var(--r-xs);
  color:var(--c-ink);
  font-size:18px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
}
.nav-toggle:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}

/* offcanvas 移动抽屉 */
.offcanvas.mobile-nav{
  --bs-offcanvas-width:84vw;
  background:#fff;
  border-left:1px solid var(--line);
}
.mobile-nav .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:16px 20px;
}
.mobile-nav .offcanvas-body{padding:8px 0 0;display:flex;flex-direction:column;}
.mobile-nav .m-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:44px;
  padding:0 20px;
  color:var(--c-ink-2);
  font-size:15.5px;
  border-bottom:1px solid var(--bg-alt);
}
.mobile-nav .m-link:hover,.mobile-nav .m-link.is-active{color:var(--c-primary);background:var(--c-primary-light);font-weight:600;}
.mobile-nav .m-footer{
  margin-top:auto;
  padding:16px 20px calc(20px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);
}
.mobile-nav .m-footer .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:72px 0 96px;
  background:linear-gradient(180deg,var(--bg) 0%,var(--c-primary-light) 100%);
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.hero-copy{max-width:600px;}
.hero h1{margin-bottom:16px;}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{
  font-size:17.5px;
  line-height:1.8;
  color:var(--c-ink-2);
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  padding-top:24px;
  border-top:1px solid rgba(122,82,48,.16);
}
.hero-stat strong{
  display:block;
  font-size:26px;
  line-height:1.2;
  font-weight:800;
  color:var(--c-accent);
}
.hero-stat span{
  font-size:14px;
  color:var(--c-ink-3);
}
.hero-visual{position:relative;padding:0 0 20px 20px;}
.hero-visual::before{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:58%;
  height:56%;
  border:2px solid var(--c-primary);
  border-radius:var(--r-lg);
  opacity:.5;
}
.hero-frame{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-2);
}
.hero-frame img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(76,122,43,.12);
}
.hero-float{
  position:absolute;
  right:-10px;
  bottom:34px;
  z-index:2;
  max-width:260px;
  background:#fff;
  border-radius:var(--r-md);
  border-left:3px solid var(--c-primary);
  box-shadow:var(--sh-2);
  padding:16px 18px;
}
.hero-float strong{
  display:block;
  font-size:20px;
  font-weight:800;
  color:var(--c-primary);
  line-height:1.3;
}
.hero-float span{font-size:13.5px;color:var(--c-ink-3);line-height:1.6;display:block;margin-top:4px;}

/* ---------- 指标带 ---------- */
.metrics{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:40px 0;
}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric{
  padding-left:18px;
  border-left:2px solid var(--c-primary-light);
}
.metric strong{
  display:block;
  font-size:30px;
  font-weight:800;
  color:var(--c-accent);
  line-height:1.2;
}
.metric strong em{font-size:15px;font-style:normal;color:var(--c-ink-2);margin-left:2px;font-weight:600;}
.metric span{font-size:14px;color:var(--c-ink-2);}

/* ---------- 交替图文 ---------- */
.split-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:44px 0;
}
.split-row + .split-row{border-top:1px solid var(--line);}
.split-row.reverse .split-media{order:2;}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.split-row:hover .split-media{box-shadow:var(--sh-2);transform:translateY(-2px);}
.split-body h2{margin-bottom:14px;}
.split-body p{margin-bottom:20px;}
.point-list{display:flex;flex-direction:column;gap:12px;}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.point-list li:hover{transform:translateX(4px);border-color:var(--c-primary);box-shadow:var(--sh-1);}
.point-list i{color:var(--c-primary);margin-top:5px;font-size:15px;}
.point-list b{display:block;font-size:15.5px;color:var(--c-ink);font-weight:600;line-height:1.6;}
.point-list em{font-style:normal;font-size:14px;color:var(--c-ink-2);line-height:1.7;}

/* ---------- 场景卡 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.scene-grid > .scene:nth-child(even){margin-top:32px;}
.scene{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.scene:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-light);}
.scene .scene-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:var(--r-sm);
  background:var(--c-primary-light);
  color:var(--c-primary-dark);
  font-size:18px;
  margin-bottom:16px;
}
.scene h3{margin-bottom:10px;}
.scene p{font-size:15.5px;margin-bottom:14px;}
.scene ul.mini{display:flex;flex-direction:column;gap:8px;}
.scene ul.mini li{
  position:relative;
  padding-left:16px;
  font-size:14.5px;
  color:var(--c-ink-2);
}
.scene ul.mini li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-primary);
}

/* ---------- 目录提示条 ---------- */
.jump-bar{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.jump-bar a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  background:#fff;
  color:var(--c-ink-2);
  font-size:14.5px;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.jump-bar a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-light);}

/* ---------- FAQ ---------- */
.faq-accordion{
  --bs-accordion-border-color:var(--line);
  --bs-accordion-border-radius:var(--r-md);
  max-width:880px;
  margin:0 auto;
}
.faq-accordion .accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  display:flex;
  align-items:center;
  min-height:56px;
  padding:14px 22px;
  font-size:16.5px;
  font-weight:600;
  color:var(--c-ink);
  background:#fff;
  box-shadow:none !important;
  border-radius:0 !important;
}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button::before{
  content:"+";
  order:2;
  margin-left:auto;
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--c-primary);
  transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--c-primary-dark);
  background:var(--c-primary-light);
  border-left:3px solid var(--c-primary);
}
.faq-accordion .accordion-button:not(.collapsed)::before{
  transform:rotate(45deg);
  color:var(--c-primary-dark);
}
.faq-accordion .accordion-button:hover{color:var(--c-primary);}
.faq-accordion .accordion-body{
  padding:16px 22px 22px;
  background:var(--bg-alt);
  font-size:15.5px;
  line-height:1.85;
  color:var(--c-ink-2);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-primary-light);
  border:1px solid #D5E2C4;
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  scroll-margin-top:80px;
}
.cta-band h2{font-size:26px;margin-bottom:8px;}
.cta-band p{font-size:15.5px;margin:0;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none;}

/* ---------- 返回链接 ---------- */
.back-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding-top:32px;
  margin-top:8px;
  border-top:1px solid var(--line);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:#EFEDE4;
  padding:72px 0 0;
  margin-top:104px;
}
.site-footer a{color:#D8D9CE;}
.site-footer a:hover{color:var(--c-accent);text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:4px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--c-primary);color:#fff;}
.site-footer p{
  color:#B9BCB0;
  font-size:14.5px;
  line-height:1.8;
  max-width:360px;
}
.site-footer h4{
  font-size:15px;
  color:#fff;
  margin-bottom:18px;
  font-weight:700;
}
.footer-links li,.footer-contact li{
  margin-bottom:12px;
  font-size:14.5px;
  color:#B9BCB0;
}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:14px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(239,237,228,.14);
  padding:22px 0 28px;
  font-size:13.5px;
  color:#8F9388;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:1040;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:52px;
  padding:0 26px;
  border-radius:999px;
  background:var(--c-primary);
  color:#fff;
  font-weight:600;
  font-size:15.5px;
  border:2px solid var(--c-accent);
  box-shadow:var(--sh-3);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background-color .2s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--c-primary-dark);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  :root{--container:1140px;}
}
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .header-search{min-width:160px;}
  .nav-links{gap:18px;}
  .split-row{gap:36px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .header-search{display:none;}
  .header-right{border-left:0;padding-left:0;gap:10px;flex:0 0 auto;}
  .nav-toggle{display:inline-flex;}
  .header-left{flex:1 1 auto;}
  .header-cta{display:none;}
  .hero{padding:48px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-copy{max-width:none;}
  .hero-visual{padding:0 0 16px 16px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .split-row{grid-template-columns:1fr;gap:24px;padding:32px 0;}
  .split-row.reverse .split-media{order:0;}
  .scene-grid{grid-template-columns:1fr;}
  .scene-grid > .scene:nth-child(even){margin-top:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
  h1{font-size:34px;}
  h2{font-size:26px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .site-container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:40px 0 56px;}
  h1{font-size:29px;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .hero-stats{gap:18px;row-gap:16px;}
  .hero-stat strong{font-size:22px;}
  .hero-float{position:static;max-width:none;margin-top:16px;right:auto;bottom:auto;}
  .hero-visual{padding:0 12px 12px 12px;}
  .hero-visual::before{width:50%;height:48%;}
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .metric strong{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:56px;margin-top:64px;}
  .cta-band{padding:26px 20px;border-radius:var(--r-md);}
  .float-cta{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    height:56px;
    border-radius:0;
    justify-content:center;
    padding:0 16px calc(env(safe-area-inset-bottom));
    border:0;
    border-top:2px solid var(--c-accent);
    opacity:1;
    transform:none;
    pointer-events:auto;
  }
  body{padding-bottom:56px;}
}
@media (max-width:520px){
  .metrics-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .jump-bar a{width:100%;justify-content:space-between;}
}

/* roulang page: category2 */
:root{
  --c-primary:#4C7A2B;
  --c-primary-dark:#35591C;
  --c-primary-soft:#EAF1DF;
  --c-accent:#E4B23C;
  --c-accent-soft:#FBF0D2;
  --c-earth:#7A5230;
  --c-ink:#1C1F17;
  --c-ink-2:#5A5F52;
  --c-ink-3:#8A8F80;
  --c-bg:#FAF7EF;
  --c-bg-alt:#F1EDE2;
  --c-card:#FFFFFF;
  --c-line:#E2DCCB;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(28,31,23,.05);
  --sh-2:0 10px 28px rgba(28,31,23,.10);
  --sh-3:0 8px 24px rgba(76,122,43,.28);
  --gap:24px;
  --sec-y:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-sm);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary-dark);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
h1{font-size:42px;line-height:1.25;font-weight:800;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:700;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
section{scroll-margin-top:80px;}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn-solid,.btn-ghost,.btn-text{display:inline-flex;align-items:center;gap:8px;border-radius:999px;font-weight:600;cursor:pointer;transition:all .22s ease;border:1px solid transparent;}
.btn-solid{background:var(--c-primary);color:#fff;padding:13px 28px;box-shadow:var(--sh-1);}
.btn-solid:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);padding:12px 26px;}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-text{color:var(--c-primary);padding:0;font-weight:600;}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(3px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled,.btn-solid:disabled{opacity:.5;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-badge);background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:12.5px;font-weight:600;}
.badge-accent{background:var(--c-accent-soft);color:var(--c-earth);}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--c-primary);font-weight:700;margin-bottom:14px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(28,31,23,.07);}
.nav-inner{
  display:grid;grid-template-columns:repeat(12,1fr);align-items:center;
  height:64px;column-gap:16px;
}
.nav-left{grid-column:span 7;display:flex;align-items:center;gap:30px;min-width:0;position:relative;}
.nav-left::after{
  content:"";position:absolute;right:-8px;top:50%;transform:translateY(-50%);
  width:1px;height:26px;background:var(--c-line);
}
.nav-right{grid-column:span 5;display:flex;justify-content:flex-end;align-items:center;gap:14px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--c-ink);white-space:nowrap;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.nav-links{display:flex;align-items:center;gap:22px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--c-ink-2);padding:6px 0;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-search{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--c-line);border-radius:999px;padding:7px 14px;background:var(--c-bg);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(76,122,43,.14);}
.nav-search i{color:var(--c-ink-3);font-size:13px;}
.nav-search input{border:0;background:transparent;outline:none;width:118px;font-size:14px;color:var(--c-ink);}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-toggle{
  display:none;border:1px solid var(--c-line);background:#fff;border-radius:11px;
  width:40px;height:40px;align-items:center;justify-content:center;color:var(--c-ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.offcanvas.offcanvas-end{width:84vw;max-width:340px;}
.offcanvas-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;}
.offcanvas-body .m-nav{display:flex;flex-direction:column;margin:22px 0 0;}
.offcanvas-body .m-nav a{
  display:flex;align-items:center;height:44px;border-bottom:1px solid var(--c-line);
  color:var(--c-ink-2);font-size:15.5px;
}
.offcanvas-body .m-nav a.is-active{color:var(--c-primary);font-weight:700;}
.offcanvas-body .m-nav a:hover{color:var(--c-primary);}
.m-cta{position:absolute;left:20px;right:20px;bottom:calc(20px + env(safe-area-inset-bottom));}

/* ---------- Hero ---------- */
.hero{
  padding:calc(64px + 34px) 0 92px;
  background:linear-gradient(180deg,var(--c-bg) 0%,var(--c-primary-soft) 100%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{margin-bottom:16px;}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{font-size:17px;color:var(--c-ink-2);max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 34px;}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats .num{font-size:26px;font-weight:800;color:var(--c-accent);line-height:1.2;}
.hero-stats .num small{font-size:13px;font-weight:600;color:var(--c-accent);margin-left:2px;}
.hero-stats .txt{font-size:13.5px;color:var(--c-ink-2);line-height:1.5;}
.hero-visual{position:relative;}
.hero-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);}
.hero-frame::before{
  content:"";position:absolute;inset:0;background:var(--c-primary);opacity:.11;border-radius:var(--r-lg);
}
.hero-visual::after{
  content:"";position:absolute;right:-16px;bottom:-16px;width:62%;height:62%;
  border:2px solid var(--c-primary);border-radius:var(--r-lg);z-index:-1;
  opacity:.55;
}
.hero-float{
  position:absolute;right:14px;bottom:-24px;background:#fff;border-radius:var(--r-sm);
  padding:14px 18px 14px 16px;box-shadow:var(--sh-2);border-left:3px solid var(--c-primary);
  max-width:250px;
}
.hero-float .fl-title{font-size:13px;color:var(--c-ink-3);margin-bottom:4px;}
.hero-float .fl-main{font-size:14.5px;color:var(--c-ink);line-height:1.6;font-weight:600;}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec-y) 0;}
.section-alt{background:var(--c-bg-alt);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head p{color:var(--c-ink-2);margin-bottom:0;}
.section-head h2{margin-bottom:14px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding:8px 0;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;margin-left:-1px;
  background:linear-gradient(180deg,var(--c-primary-soft),var(--c-primary),var(--c-primary-soft));
}
.tl-item{position:relative;width:50%;padding-right:54px;margin-bottom:44px;}
.tl-item:last-child{margin-bottom:0;}
.tl-item:nth-child(even){margin-left:50%;padding-right:0;padding-left:54px;}
.tl-item::after{
  content:"";position:absolute;top:30px;right:-9px;width:18px;height:18px;border-radius:50%;
  background:#fff;border:4px solid var(--c-primary);z-index:2;
}
.tl-item:nth-child(even)::after{right:auto;left:-9px;}
.tl-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary);}
.tl-step{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-weight:800;font-size:14px;margin-bottom:14px;
}
.tl-card h3{margin-bottom:10px;}
.tl-card p{color:var(--c-ink-2);font-size:15px;margin-bottom:12px;}
.tl-card p:last-of-type{margin-bottom:16px;}
.tl-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm);}

/* ---------- 覆盖范围行条 ---------- */
.cover-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.cover-figure img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--r-md);}
.cover-figure figcaption{font-size:13px;color:var(--c-ink-3);margin-top:10px;}
.row-strip{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:18px 20px;margin-bottom:14px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.row-strip:hover{transform:translateX(4px);border-color:var(--c-primary);box-shadow:var(--sh-1);}
.row-strip .rs-icon{
  flex:0 0 38px;width:38px;height:38px;border-radius:11px;background:var(--c-primary-soft);
  color:var(--c-primary-dark);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.row-strip h3{font-size:17px;margin-bottom:4px;}
.row-strip p{margin:0;font-size:14.5px;color:var(--c-ink-2);}

/* ---------- 指标带 ---------- */
.metric-band{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:38px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;box-shadow:var(--sh-1);
}
.metric{text-align:center;position:relative;}
.metric+.metric::before{
  content:"";position:absolute;left:-14px;top:12%;bottom:12%;width:1px;background:var(--c-line);
}
.metric .m-num{font-size:34px;font-weight:800;color:var(--c-accent);line-height:1.15;}
.metric .m-num small{font-size:14px;font-weight:700;margin-left:2px;}
.metric .m-txt{font-size:14px;color:var(--c-ink-2);margin-top:6px;}
.trust-line{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px;
}
.trust-line span{
  font-size:13px;color:var(--c-ink-2);border:1px solid var(--c-line);border-radius:999px;
  padding:6px 14px;background:#fff;
}

/* ---------- 数据字段表 ---------- */
.field-table{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;background:#fff;
  border-collapse:separate;border-spacing:0;
}
.field-table th,.field-table td{padding:15px 20px;font-size:14.8px;text-align:left;border-bottom:1px solid var(--c-line);}
.field-table th{background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:700;font-size:14px;}
.field-table tbody tr:last-child td{border-bottom:0;}
.field-table td:first-child{color:var(--c-primary);font-weight:600;white-space:nowrap;}
.field-table tbody tr:nth-child(even){background:#FCFAF4;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md)!important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--c-primary);}
.faq-acc .accordion-button{
  background:#fff;color:var(--c-ink);font-size:16.5px;font-weight:600;
  min-height:56px;padding:16px 54px 16px 22px;box-shadow:none;border-radius:0!important;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary-dark);background:var(--c-primary-soft);}
.faq-acc .accordion-button::after{
  content:"\2b";font-family:inherit;font-size:20px;font-weight:700;color:var(--c-primary);
  background-image:none;width:auto;height:auto;line-height:1;transition:transform .25s ease;
  display:flex;align-items:center;justify-content:center;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-body{background:var(--c-bg);color:var(--c-ink-2);font-size:15px;padding:18px 22px 20px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-primary);
  border-radius:var(--r-lg);padding:34px 36px;display:flex;flex-wrap:wrap;gap:22px;
  align-items:center;justify-content:space-between;box-shadow:var(--sh-1);
}
.cta-band h2{font-size:24px;margin-bottom:6px;}
.cta-band p{margin:0;color:var(--c-ink-2);font-size:15px;}
.back-link{margin-top:26px;display:inline-flex;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#E7E4D9;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:15px;}
.site-footer p{color:#B9BCAE;font-size:14.5px;line-height:1.8;margin:0;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#B9BCAE;font-size:14.5px;border-bottom:3px solid transparent;padding-bottom:2px;}
.footer-links a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#B9BCAE;font-size:14.5px;margin-bottom:12px;}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(226,220,203,.18);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13.5px;color:#9A9E8F;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:15px;
  padding:14px 26px;border-radius:999px;border:2px solid var(--c-accent);
  box-shadow:var(--sh-3);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background-color .22s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--c-primary-dark);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .site-container{max-width:1140px;}
}
@media (max-width:1199px){
  h1{font-size:38px;}
  .hero-grid{gap:40px;grid-template-columns:6fr 5fr;}
  .cover-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .nav-links{gap:16px;}
  .nav-search input{width:96px;}
}
@media (max-width:991px){
  :root{--sec-y:76px;}
  h1{font-size:33px;}
  h2{font-size:26px;}
  .nav-inner{height:56px;}
  .nav-left{grid-column:span 8;}
  .nav-right{grid-column:span 4;}
  .nav-left::after{display:none;}
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:calc(56px + 30px) 0 76px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-visual::after{display:none;}
  .hero-float{position:static;margin-top:16px;max-width:none;}
  .cover-grid{grid-template-columns:1fr;gap:34px;}
  .cover-figure img{aspect-ratio:16/9;}
  .metric-band{grid-template-columns:repeat(2,1fr);gap:24px;padding:30px 22px;}
  .metric+.metric::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  /* 时间线移动端：全部靠右 */
  .timeline::before{left:17px;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding-left:52px;padding-right:0;}
  .tl-item::after,.tl-item:nth-child(even)::after{left:9px;right:auto;top:26px;}
}
@media (max-width:767px){
  .section{padding:60px 0;}
  .section-head{margin-bottom:36px;}
  .field-table th,.field-table td{padding:12px 14px;font-size:14px;}
  .cta-band{padding:26px 22px;}
  .cta-band h2{font-size:21px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));border:0;border-top:2px solid var(--c-accent);
  }
  .float-cta.hide-near-footer{opacity:0;visibility:hidden;}
}
@media (max-width:575px){
  .site-container{padding:0 18px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  body{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-solid,.hero-actions .btn-ghost{justify-content:center;}
  .hero-stats{gap:14px 22px;}
  .metric-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .tl-card{padding:20px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#4C7A2B;
  --c-primary-dark:#35591C;
  --c-primary-light:#EAF1DF;
  --c-accent:#E4B23C;
  --c-accent-light:#FBF0D2;
  --c-earth:#7A5230;
  --c-ink:#1C1F17;
  --c-ink-2:#5A5F52;
  --c-ink-3:#8A8F80;
  --c-bg:#FAF7EF;
  --c-bg-alt:#F1EDE2;
  --c-card:#FFFFFF;
  --c-line:#E2DCCB;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --sh-1:0 1px 2px rgba(28,31,23,.05);
  --sh-2:0 10px 28px rgba(28,31,23,.10);
  --sh-3:0 8px 24px rgba(76,122,43,.28);
  --sp-section:104px;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-sm);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:var(--c-primary-light);color:var(--c-primary-dark);}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;pointer-events:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);font-size:15px;}
.text-link i{transition:transform .22s ease;}
.text-link:hover i{transform:translateX(3px);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,31,23,.08);}
.header-inner{display:flex;align-items:center;gap:26px;height:64px;}
.header-left{display:flex;align-items:center;gap:30px;flex:1 1 auto;min-width:0;}
.header-divider{width:1px;height:26px;background:var(--c-line);flex:none;}
.header-right{display:flex;align-items:center;gap:14px;flex:none;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.01em;}
.brand:hover .brand-text{color:var(--c-primary);}
.nav-links{display:flex;align-items:center;gap:24px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a.is-active{color:var(--c-primary);font-weight:700;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-20px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-search{position:relative;display:flex;align-items:center;}
.header-search i{position:absolute;left:12px;color:var(--c-ink-3);font-size:13px;pointer-events:none;}
.header-search input{
  width:186px;height:38px;padding:0 12px 0 32px;
  border:1px solid var(--c-line);border-radius:var(--r-xs);
  background:#fff;font-size:14px;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-light);outline:none;}
.nav-toggle{
  width:42px;height:42px;border-radius:var(--r-xs);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  display:none;align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* offcanvas 移动菜单 */
.offcanvas.mobile-nav{width:84vw;max-width:340px;background:#fff;}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px;}
.mobile-nav .offcanvas-body{padding:8px 20px 24px;display:flex;flex-direction:column;height:100%;}
.mobile-nav-links{display:flex;flex-direction:column;margin:8px 0 0;}
.mobile-nav-links a{
  display:flex;align-items:center;justify-content:space-between;
  height:44px;font-size:15.5px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.mobile-nav-links a.is-active{color:var(--c-primary);font-weight:700;}
.mobile-nav-links a i{font-size:12px;color:var(--c-ink-3);}
.mobile-nav-cta{margin-top:auto;padding-top:24px;}
.mobile-nav-cta .btn{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:72px 0 96px;
  background:linear-gradient(180deg,#FAF7EF 0%,#EAF1DF 100%);
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);text-transform:none;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.hero h1{
  font-size:42px;line-height:1.25;font-weight:800;letter-spacing:0;
  margin-bottom:16px;
}
.hero-sub{
  font-size:17px;line-height:1.85;color:var(--c-ink-2);
  max-width:52ch;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;padding-top:24px;border-top:1px solid var(--c-line);}
.hero-stat{min-width:118px;}
.hero-stat strong{
  display:block;font-size:24px;font-weight:800;color:var(--c-accent);line-height:1.2;
}
.hero-stat span{font-size:14px;color:var(--c-ink-3);line-height:1.6;}
.hero-visual{position:relative;padding:0 0 14px 14px;}
.hero-frame{
  position:absolute;right:0;bottom:0;width:calc(100% - 14px);height:calc(100% - 14px);
  border:2px solid var(--c-primary);border-radius:22px;z-index:0;
}
.hero-visual-media{
  position:relative;z-index:1;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:4/3;background:var(--c-primary-light);box-shadow:var(--sh-2);
}
.hero-visual-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.hero-visual-media::after{
  content:"";position:absolute;inset:0;background:rgba(76,122,43,.10);pointer-events:none;
}
.hero-float-card{
  position:absolute;right:-4px;bottom:-4px;z-index:2;
  background:#fff;border-radius:var(--r-sm);border-left:3px solid var(--c-primary);
  padding:12px 18px;box-shadow:var(--sh-2);max-width:236px;
}
.hero-float-card strong{display:block;font-size:15px;font-weight:700;color:var(--c-ink);}
.hero-float-card span{font-size:13px;color:var(--c-ink-3);line-height:1.6;}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--c-bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px;}
.section-head p{font-size:16.5px;color:var(--c-ink-2);margin:0;}
section[id]{scroll-margin-top:80px;}

/* ============ 橱窗区 ============ */
.showcase-layout{
  display:grid;grid-template-columns:272px minmax(0,1fr);gap:32px;align-items:start;
}
.toc-card{
  position:sticky;top:96px;
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);
}
.toc-card h3{font-size:16px;font-weight:700;margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 0;font-size:14.5px;color:var(--c-ink-2);
  border-bottom:1px dashed var(--c-line);
  transition:color .2s ease,padding-left .2s ease;
}
.toc-list li:last-child a{border-bottom:none;}
.toc-list a::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-line);
  flex:none;transition:background-color .2s ease;
}
.toc-list a:hover,
.toc-list a.is-current{color:var(--c-primary);padding-left:4px;}
.toc-list a:hover::before,
.toc-list a.is-current::before{background:var(--c-primary);}
.toc-note{
  margin-top:20px;padding:14px 16px;border-radius:var(--r-xs);
  background:var(--c-primary-light);border-left:3px solid var(--c-primary);
  font-size:13.5px;color:var(--c-ink-2);line-height:1.7;
}
.window-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.window-card{
  display:flex;flex-direction:column;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.window-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D7D0BC;}
.window-media{aspect-ratio:4/3;overflow:hidden;background:var(--c-primary-light);}
.window-media img{
  width:100%;height:100%;object-fit:cover;border-radius:0;
  transition:transform .5s ease;
}
.window-card:hover .window-media img{transform:scale(1.03);}
.window-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:var(--c-primary-light);color:var(--c-primary);
  font-size:12.5px;font-weight:600;line-height:1;width:fit-content;
}
.badge-accent{background:var(--c-accent-light);color:var(--c-earth);}
.window-body h3{font-size:20px;line-height:1.45;font-weight:600;}
.window-body p{font-size:15px;color:var(--c-ink-2);line-height:1.8;margin:0;}
.window-link{
  margin-top:auto;padding-top:6px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.window-link i{transition:transform .22s ease;}
.window-card:hover .window-link i{transform:translateX(3px);}

/* ============ 适用场景 ============ */
.scene-layout{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start;
}
.scene-list{display:flex;flex-direction:column;gap:14px;}
.scene-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--c-card);border:1px solid var(--c-line);border-left:3px solid var(--c-line);
  border-radius:var(--r-sm);padding:18px 20px;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.scene-item:hover{transform:translateX(4px);border-left-color:var(--c-primary);box-shadow:var(--sh-2);}
.scene-item i{color:var(--c-primary);font-size:18px;line-height:1.4;flex:none;margin-top:2px;}
.scene-item h3{font-size:16.5px;font-weight:600;margin-bottom:4px;}
.scene-item p{font-size:14.5px;color:var(--c-ink-2);margin:0;line-height:1.75;}

/* ============ 准备与提醒 ============ */
.prep-layout{
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:40px;align-items:start;
}
.prep-panel{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);
}
.prep-panel h3{font-size:20px;font-weight:700;margin-bottom:16px;}
.prep-list{display:flex;flex-direction:column;gap:12px;}
.prep-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--c-ink-2);line-height:1.8;
}
.prep-list i{color:var(--c-primary);font-size:14px;margin-top:6px;flex:none;}
.form-panel{
  background:var(--c-bg-alt);border:1px solid var(--c-line);
  border-left:3px solid var(--c-primary);border-radius:var(--r-md);
  padding:28px;
}
.form-panel h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.form-panel > p{font-size:14.5px;color:var(--c-ink-2);margin-bottom:22px;}
.form-field{margin-bottom:18px;}
.form-field label{
  display:block;font-size:13px;color:var(--c-ink-3);margin-bottom:7px;font-weight:500;
}
.form-field input,
.form-field textarea{
  width:100%;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-xs);font-size:15px;color:var(--c-ink);
  padding:0 14px;height:44px;line-height:44px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{height:104px;line-height:1.7;padding:12px 14px;resize:vertical;}
.form-field input:focus,
.form-field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-light);outline:none;
}
.form-field input::placeholder,
.form-field textarea::placeholder{color:var(--c-ink-3);}
.form-field.has-error input,
.form-field.has-error textarea{border-color:var(--c-earth);box-shadow:0 0 0 3px rgba(122,82,48,.14);}
.form-hint{font-size:13px;color:var(--c-ink-3);margin-top:14px;line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;margin-bottom:14px;
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:14px 22px;
  background:#fff;border:none;border-radius:0;
  font-size:16.5px;font-weight:600;color:var(--c-ink);text-align:left;
  box-shadow:none;transition:color .2s ease,background-color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--c-primary);background:var(--c-primary-light);
  box-shadow:inset 3px 0 0 var(--c-primary);
}
.faq-accordion .accordion-button:focus{box-shadow:inset 3px 0 0 var(--c-primary);}
.faq-accordion .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:22px;font-weight:400;color:var(--c-primary);line-height:1;
  margin:0;flex:none;transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-accordion .accordion-body{
  padding:18px 22px 22px 25px;background:var(--c-bg-alt);
  font-size:15px;color:var(--c-ink-2);line-height:1.85;
}

/* ============ CTA 带 ============ */
.cta-band{
  padding:56px 0;
  background:linear-gradient(180deg,#EAF1DF 0%,#FAF7EF 100%);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--c-primary);border-radius:var(--r-lg);
  padding:36px 40px;box-shadow:var(--sh-3);
}
.cta-inner h2{color:#fff;font-size:24px;font-weight:700;margin-bottom:8px;}
.cta-inner p{color:rgba(255,255,255,.86);font-size:15px;margin:0;max-width:56ch;}
.cta-inner .btn{
  background:#fff;color:var(--c-primary-dark);flex:none;
}
.cta-inner .btn:hover{background:var(--c-accent-light);color:var(--c-primary-dark);transform:translateY(-2px);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-3);border:1px solid var(--c-accent);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background-color .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--c-primary-dark);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:#1C1F17;color:#F3F0E6;padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,4fr) minmax(0,2.5fr) minmax(0,2.5fr) minmax(0,3fr);
  gap:40px;padding-bottom:52px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--c-primary);}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(243,240,230,.72);max-width:34ch;}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links,
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14.5px;color:rgba(243,240,230,.72);
  border-bottom:3px solid transparent;padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.footer-links a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.5px;color:rgba(243,240,230,.72);line-height:1.7;
}
.footer-contact i{color:var(--c-accent);font-size:13px;margin-top:5px;flex:none;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(243,240,230,.14);
  padding:22px 0 26px;font-size:13.5px;color:rgba(243,240,230,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .site-container{max-width:1140px;}
}
@media (max-width:1199px){
  :root{--sp-section:88px;}
  .hero h1{font-size:36px;}
  .hero-grid{gap:40px;}
  .header-search input{width:150px;}
  .showcase-layout{grid-template-columns:240px minmax(0,1fr);gap:26px;}
}
@media (max-width:991px){
  :root{--sp-section:72px;}
  .header-inner{height:58px;gap:16px;}
  .nav-links,
  .header-divider,
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-right{margin-left:auto;}
  .hero{padding:48px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero h1{font-size:32px;}
  .hero-visual{max-width:560px;}
  .showcase-layout{grid-template-columns:1fr;}
  .toc-card{position:static;}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:0 20px;}
  .toc-list a{border-bottom:none;}
  .scene-layout,
  .prep-layout{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px;}
}
@media (max-width:767px){
  :root{--sp-section:60px;}
  .site-container{padding:0 18px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .section-head h2{font-size:24px;}
  .window-grid{grid-template-columns:1fr;gap:18px;}
  .hero-stats{gap:20px;}
  .hero-stat strong{font-size:21px;}
  .cta-inner h2{font-size:20px;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .brand-text{font-size:15.5px;}
  .hero{padding:36px 0 56px;}
  .hero h1{font-size:25px;}
  .hero-actions .btn{width:100%;}
  .hero-float-card{position:static;max-width:none;margin-top:14px;box-shadow:var(--sh-1);}
  .hero-visual{padding:0 0 10px 10px;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-accordion .accordion-button{font-size:15.5px;padding:14px 16px;}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;height:56px;border-radius:0;
    border:none;border-top:1px solid rgba(255,255,255,.16);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.is-hidden-by-footer{opacity:0;visibility:hidden;}
}

/* roulang page: category4 */
:root{
  --c-primary:#4C7A2B;
  --c-primary-dark:#35591C;
  --c-primary-light:#EAF1DF;
  --c-accent:#E4B23C;
  --c-accent-deep:#A87A18;
  --c-accent-light:#FBF0D2;
  --c-earth:#7A5230;
  --c-ink:#1C1F17;
  --c-ink-2:#5A5F52;
  --c-ink-3:#8A8F80;
  --bg-page:#FAF7EF;
  --bg-alt:#F1EDE2;
  --bg-card:#FFFFFF;
  --line:#E2DCCB;
  --r-lg:20px;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(28,31,23,.05);
  --sh-2:0 10px 28px rgba(28,31,23,.10);
  --sh-3:0 8px 24px rgba(76,122,43,.28);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--c-primary-dark);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:0;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-size:15.5px;font-weight:600;padding:13px 26px;border:1px solid transparent;cursor:pointer;transition:all .22s ease;line-height:1.2;}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);box-shadow:var(--sh-1);}
.btn-primary:hover{background:#40691F;border-color:#40691F;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary);}
.btn-pill{border-radius:999px;}
.btn-sm{padding:9px 18px;font-size:14.5px;}
.btn.disabled,.btn:disabled{opacity:.5;box-shadow:none;pointer-events:none;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--c-primary);font-size:15.5px;}
.text-link i{transition:transform .22s ease;}
.text-link:hover i{transform:translateX(3px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,31,23,.07);}
.header-inner{display:flex;align-items:center;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);white-space:nowrap;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--c-primary);color:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:800;box-shadow:var(--sh-1);
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:24px;padding-left:24px;border-left:1px solid var(--line);}
.nav-links a{
  position:relative;display:inline-block;padding:9px 13px;border-radius:8px;
  font-size:15px;color:var(--c-ink-2);font-weight:500;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-light);}
.nav-links a.is-active{color:var(--c-primary);font-weight:700;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;padding-left:24px;border-left:1px solid var(--line);}
.header-search{display:flex;align-items:center;height:40px;background:var(--bg-alt);border:1px solid var(--line);border-radius:999px;padding:0 6px 0 14px;transition:border-color .2s ease,box-shadow .2s ease;}
.header-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(76,122,43,.14);}
.header-search input{border:0;background:transparent;outline:none;font-size:14px;width:132px;color:var(--c-ink);}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search button{width:30px;height:30px;border:0;border-radius:50%;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:12px;cursor:pointer;transition:background .2s ease;}
.header-search button:hover{background:var(--c-primary-dark);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--c-ink);font-size:18px;cursor:pointer;transition:all .2s ease;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-light);}
.offcanvas{width:84vw;max-width:360px;background:#fff;}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.offcanvas-title{font-size:16px;font-weight:800;}
.offcanvas-body{padding:18px 22px 28px;display:flex;flex-direction:column;}
.mobile-links{display:flex;flex-direction:column;}
.mobile-links a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:15.5px;color:var(--c-ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-links a:hover,.mobile-links a.is-active{color:var(--c-primary);font-weight:700;}
.mobile-links a i{font-size:12px;color:var(--c-ink-3);}
.mobile-cta{margin-top:24px;}
.mobile-note{margin-top:18px;font-size:13.5px;color:var(--c-ink-3);line-height:1.8;}

/* ---------- 首屏 ---------- */
.page-hero{
  padding:calc(var(--nav-h) + 60px) 0 88px;
  background:linear-gradient(180deg,#FAF7EF 0%,#EAF1DF 100%);
  scroll-margin-top:80px;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-primary);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.hero-copy h1{font-size:42px;line-height:1.25;font-weight:800;margin-bottom:16px;}
.hero-lead{font-size:17px;color:var(--c-ink-2);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;}
.hero-stat .stat-num{font-size:24px;font-weight:800;color:var(--c-accent-deep);line-height:1.2;}
.hero-stat .stat-label{font-size:14px;color:var(--c-ink-2);margin-top:2px;}
.hero-visual{position:relative;}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(76,122,43,.10);}
.visual-frame{
  position:absolute;top:20px;left:20px;right:-20px;bottom:-20px;
  border:1.5px solid var(--c-primary);border-radius:var(--r-lg);
}
.float-card{
  position:absolute;right:-6px;bottom:26px;max-width:250px;
  background:#fff;border-left:3px solid var(--c-primary);border-radius:14px;
  padding:14px 18px;box-shadow:var(--sh-2);font-size:14px;color:var(--c-ink-2);line-height:1.7;
}
.float-card strong{display:block;color:var(--c-ink);font-size:15px;margin-bottom:2px;}

/* ---------- 分区 ---------- */
.section{padding:104px 0;scroll-margin-top:80px;}
.section-alt{background:var(--bg-alt);}
.section-fade{background:linear-gradient(180deg,#FAF7EF 0%,#EAF1DF 100%);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:30px;font-weight:700;line-height:1.35;margin-bottom:14px;}
.section-head p{font-size:16.5px;color:var(--c-ink-2);margin:0;}

/* ---------- 对照矩阵 ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.table-scroll{overflow-x:auto;}
table.compare{width:100%;min-width:720px;border-collapse:collapse;font-size:15.5px;}
table.compare thead th{
  background:var(--c-primary-light);color:var(--c-ink);
  font-size:15px;font-weight:700;text-align:left;
  padding:18px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare thead th:first-child{color:var(--c-primary);}
table.compare tbody td{
  padding:16px 22px;border-bottom:1px solid var(--line);
  color:var(--c-ink-2);line-height:1.75;vertical-align:middle;
}
table.compare tbody td:first-child{color:var(--c-primary);font-weight:700;background:rgba(234,241,223,.42);}
table.compare tbody tr:nth-child(even) td{background-color:rgba(241,237,226,.5);}
table.compare tbody tr:nth-child(even) td:first-child{background-color:rgba(234,241,223,.7);}
table.compare tbody tr{transition:background-color .2s ease;}
table.compare tbody tr:hover td{background-color:rgba(234,241,223,.85);}
table.compare tbody tr:last-child td{border-bottom:0;}
.compare-note{margin-top:18px;font-size:14px;color:var(--c-ink-3);}

/* ---------- 指标带 ---------- */
.metric-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 36px;box-shadow:var(--sh-1);margin-bottom:64px;
}
.metric-num{font-size:34px;font-weight:800;color:var(--c-accent-deep);line-height:1.1;}
.metric-num small{font-size:15px;font-weight:600;color:var(--c-ink-3);margin-left:4px;}
.metric-label{font-size:14px;color:var(--c-ink-2);margin-top:6px;}

/* ---------- 图文与要点 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;}
.split-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.point-list{list-style:none;}
.point-row{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:18px 20px;margin-bottom:14px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.point-row:last-child{margin-bottom:0;}
.point-row:hover{transform:translateX(4px);border-color:var(--c-primary);box-shadow:var(--sh-2);}
.point-ico{
  width:40px;height:40px;flex:0 0 40px;border-radius:11px;
  background:var(--c-primary-light);color:var(--c-primary);
  display:grid;place-items:center;font-size:16px;
}
.point-row h3{font-size:17px;font-weight:600;margin-bottom:6px;line-height:1.45;}
.point-row p{font-size:14.5px;color:var(--c-ink-2);margin:0;line-height:1.75;}

/* ---------- 分步 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.steps::before{
  content:"";position:absolute;top:44px;left:6%;right:6%;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);
}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,transform .22s ease;
}
.step:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.step-num{
  width:36px;height:36px;border-radius:50%;background:var(--c-primary);color:#fff;
  font-size:15px;font-weight:800;display:grid;place-items:center;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--c-ink-2);margin:0;}

/* ---------- FAQ ---------- */
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;margin-bottom:14px;box-shadow:var(--sh-1);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  width:100%;min-height:56px;padding:16px 22px;background:#fff;
  font-size:16.5px;font-weight:600;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;
  border:0;box-shadow:none;transition:color .2s ease,background-color .2s ease;
}
.accordion-button:not(.collapsed){color:var(--c-primary);border-left:3px solid var(--c-primary);background:#fff;}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-3px;}
.accordion-button::after{
  background-image:none;content:"+";font-size:22px;font-weight:600;color:var(--c-primary);
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease;flex:0 0 24px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{
  padding:16px 22px 22px;font-size:15px;color:var(--c-ink-2);
  background:var(--bg-alt);line-height:1.85;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-ink);border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:36px;box-shadow:var(--sh-2);
}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;margin-bottom:10px;line-height:1.4;}
.cta-band p{color:#A9AF9E;font-size:15.5px;margin:0;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-outline{color:#EFEBDF;border-color:rgba(239,235,223,.5);}
.cta-band .btn-outline:hover{background:rgba(239,235,223,.12);color:#fff;border-color:#EFEBDF;}
.back-link-row{margin-top:28px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#EFEBDF;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.site-footer p{color:#A9AF9E;font-size:14.5px;line-height:1.85;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-links{list-style:none;}
.footer-links li{margin-bottom:6px;}
.footer-links a{
  color:#A9AF9E;font-size:14.5px;display:inline-block;
  border-bottom:2px solid transparent;padding-bottom:1px;transition:color .2s ease,border-color .2s ease;
}
.footer-links a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.footer-contact{list-style:none;}
.footer-contact li{display:flex;align-items:center;gap:10px;color:#A9AF9E;font-size:14.5px;margin-bottom:12px;}
.footer-contact i{color:var(--c-primary);width:16px;text-align:center;}
.footer-bottom{
  border-top:1px solid rgba(226,220,203,.16);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;
  color:#8A8F80;font-size:13.5px;flex-wrap:wrap;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--c-primary);color:#fff;font-weight:600;font-size:15px;
  padding:14px 24px;border-radius:999px;border:1px solid rgba(228,178,60,.65);
  box-shadow:var(--sh-3);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background-color .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--c-primary-dark);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .site-container{max-width:1140px;}
}
@media (max-width:1199px){
  .site-container{max-width:100%;}
  .hero-grid{gap:44px;}
  .hero-copy h1{font-size:38px;}
}
@media (max-width:991px){
  :root{--nav-h:56px;}
  .nav-links,.header-search,.header-actions .btn-primary{display:none;}
  .header-actions{border-left:0;padding-left:0;}
  .nav-toggle{display:inline-flex;}
  .page-hero{padding:calc(var(--nav-h) + 40px) 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-copy h1{font-size:34px;}
  .hero-lead{max-width:none;}
  .float-card{right:14px;bottom:14px;}
  .visual-frame{right:-12px;bottom:-12px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:26px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .metric-band{grid-template-columns:repeat(2,1fr);padding:26px 24px;gap:20px;margin-bottom:48px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .steps::before{display:none;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .hero-copy h1{font-size:29px;}
  .hero-stats{gap:24px;}
  .hero-stat .stat-num{font-size:21px;}
  .section{padding:60px 0;}
  .section-head h2{font-size:23px;}
  .metric-num{font-size:28px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:576px){
  .site-container{padding:0 18px;}
  .brand{font-size:15.5px;}
  .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:14px;}
  .hero-actions .btn{width:100%;}
  .hero-actions{gap:12px;}
  .metric-band{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 18px calc(16px + env(safe-area-inset-bottom,0px));
    border-left:0;border-right:0;border-bottom:0;font-size:15px;
  }
  .float-cta.is-hidden-bottom{opacity:0;visibility:hidden;transform:translateY(12px);}
}