/* roulang page: index */
:root{
  --primary:#1F3B34;
  --primary-strong:#2C5348;
  --primary-ink:#14231F;
  --accent:#C4622D;
  --accent-soft:#F0DCCF;
  --surface:#FFFFFF;
  --base:#F6F2EA;
  --line:#DFD7C9;
  --text:#1A1D1B;
  --text-muted:#5A625E;
  --text-faint:#8A8F8B;
  --success:#3F6F52;
  --warn:#B07A2B;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(20,35,31,.06), 0 10px 24px -16px rgba(20,35,31,.20);
  --shadow-2:0 2px 6px rgba(20,35,31,.08), 0 18px 40px -20px rgba(20,35,31,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--base);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(196,98,45,.40);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding:14px 0 0;
  background:transparent;
  transition:background .25s ease, padding .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(246,242,234,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  padding-top:8px;
  padding-bottom:8px;
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:16px;
  height:72px;
  padding:0 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--shadow-2);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;flex:0 0 auto;
  border-radius:9px;
  background:var(--primary);
  display:grid;place-items:center;
  color:#fff;
}
.brand-mark svg{width:17px;height:17px;}
.brand-name{
  font-size:16px;font-weight:700;
  color:var(--primary-ink);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover .brand-name{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:7px 12px;
  border:1px solid transparent;
  border-radius:12px;
  color:var(--text);
  transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.nav-item .ni-icon{
  width:28px;height:28px;flex:0 0 auto;
  border-radius:8px;
  background:var(--base);
  display:grid;place-items:center;
  color:var(--primary);
}
.nav-item .ni-icon svg{width:15px;height:15px;}
.nav-item .ni-label{display:block;font-size:14px;font-weight:600;line-height:1.2;color:var(--primary-ink);}
.nav-item .ni-sub{display:block;font-size:12px;line-height:1.3;color:var(--text-faint);}
.nav-item:hover{background:var(--base);border-color:rgba(31,59,52,.3);transform:translateY(-1px);}
.nav-item.is-active{background:rgba(31,59,52,.12);}
.nav-item.is-active .ni-label{color:var(--primary);}
.nav-item.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;
  border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--primary);
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--base);border-color:rgba(31,59,52,.3);}
.nav-toggle svg{width:20px;height:20px;}
.nav-drawer{
  display:none;
  margin-top:10px;
  padding:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
}
.nav-drawer.is-open{display:block;}
.nav-drawer .drawer-item{
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;
  border-radius:12px;
  color:var(--text);
  min-height:44px;
}
.nav-drawer .drawer-item:hover{background:var(--base);color:var(--primary);}
.nav-drawer .drawer-item.is-active{background:rgba(31,59,52,.12);color:var(--primary);}
.nav-drawer .drawer-item .ni-icon{
  width:28px;height:28px;border-radius:8px;background:var(--base);
  display:grid;place-items:center;color:var(--primary);flex:0 0 auto;
}
.nav-drawer .drawer-item .ni-icon svg{width:15px;height:15px;}
.nav-drawer .drawer-item span{font-size:15px;font-weight:600;}
.nav-drawer .drawer-cta{margin-top:10px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;
  border-radius:999px;
  border:1.5px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;flex:0 0 auto;transition:transform .2s ease;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-outline{background:var(--surface);color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--base);color:var(--primary);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#ad5426;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-accent:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  white-space:nowrap;
}
.link-more svg{width:15px;height:15px;transition:transform .2s ease;}
.link-more:hover{color:var(--accent);}
.link-more:hover svg{transform:translateX(4px);}

/* ============ 板块与标题 ============ */
.section{padding:48px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;flex-wrap:wrap;
}
.section-no{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--accent);margin-bottom:6px;
}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:32px;line-height:1.3;font-weight:700;
  color:var(--primary-ink);
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--primary);
}
.section-desc{
  font-size:15px;color:var(--text-muted);max-width:620px;margin-top:8px;
}

/* ============ Hero ============ */
.hero{padding:40px 0 8px;}
.hero-grid{margin-bottom:0;}
.hero-copy{padding-bottom:20px;}
.hero h1{
  font-size:48px;line-height:1.2;font-weight:700;
  letter-spacing:-.5px;color:var(--primary-ink);
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;line-height:1.8;color:var(--text-muted);
  max-width:560px;margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  font-size:13px;color:var(--text-muted);
}
.hero-badge svg{width:14px;height:14px;color:var(--success);flex:0 0 auto;}
.hero-note{font-size:13px;line-height:1.6;color:var(--text-faint);}
.hero-visual{position:relative;padding:0 14px 14px 0;}
.hero-visual::before{
  content:"";position:absolute;left:22px;top:22px;right:0;bottom:0;
  border:1.5px solid var(--accent);border-radius:26px;
}
.hero-frame{
  position:relative;z-index:1;
  border-radius:24px;overflow:hidden;
  aspect-ratio:4/3;
  box-shadow:var(--shadow-1);
  background:var(--surface);
}
.hero-frame img{width:100%;height:100%;object-fit:cover;}
.hero-mini{
  position:absolute;right:14px;bottom:14px;z-index:2;
  width:168px;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:4px solid #fff;
  box-shadow:var(--shadow-1);
  background:#fff;
}
.hero-mini img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ============ 信任条 ============ */
.trust-strip{
  display:flex;align-items:center;gap:12px;
  padding:18px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow-x:auto;
  scrollbar-width:thin;
}
.trust-item{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 14px;
  border-radius:999px;
  background:var(--base);
  font-size:13px;font-weight:500;color:var(--text-muted);
  white-space:nowrap;flex:0 0 auto;
}
.trust-item svg{width:15px;height:15px;color:var(--primary);flex:0 0 auto;}

/* ============ 三步开通 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{
  position:relative;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,59,52,.24);}
.step-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
  background:linear-gradient(90deg,var(--primary),rgba(31,59,52,0));
}
.step-card + .step-card::after{
  content:"";position:absolute;left:-24px;top:38px;width:24px;
  border-top:2px dashed var(--line);
}
.step-index{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--accent);}
.step-icon{
  width:48px;height:48px;margin:14px 0 16px;
  border-radius:var(--radius-md);
  background:var(--primary);
  display:grid;place-items:center;
  color:#fff;
}
.step-icon svg{width:22px;height:22px;}
.step-card h3{font-size:22px;line-height:1.4;font-weight:700;color:var(--primary-ink);margin-bottom:10px;}
.step-card p{font-size:15px;line-height:1.75;color:var(--text-muted);}
.step-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-faint);}

/* ============ 案例证明 ============ */
.case-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.case-main{
  position:relative;
  display:flex;align-items:flex-end;
  min-height:360px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.case-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,35,31,.12) 0%,rgba(20,35,31,.72) 100%);
}
.case-main-body{position:relative;z-index:2;padding:28px;color:#fff;}
.case-main-body h3{font-size:22px;font-weight:700;margin-bottom:10px;color:#fff;}
.case-main-body p{font-size:15px;line-height:1.75;color:rgba(255,255,255,.86);margin-bottom:18px;max-width:460px;}
.metric{display:inline-flex;align-items:baseline;gap:8px;}
.metric b{font-size:40px;font-weight:700;line-height:1;letter-spacing:-.5px;color:#fff;}
.metric span{font-size:14px;color:rgba(255,255,255,.75);}
.case-side{display:grid;gap:24px;align-content:start;}
.case-mini{
  display:grid;grid-template-columns:96px 1fr;gap:16px;
  padding:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.case-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,59,52,.24);}
.case-mini img{width:96px;height:72px;object-fit:cover;border-radius:var(--radius-md);}
.case-mini h3{font-size:16px;font-weight:700;color:var(--primary-ink);margin-bottom:6px;line-height:1.4;}
.case-mini p{font-size:13px;line-height:1.6;color:var(--text-muted);margin-bottom:8px;}
.metric-sm b{font-size:20px;font-weight:700;color:var(--primary);line-height:1;}
.metric-sm span{font-size:12px;color:var(--text-faint);margin-left:6px;}

/* ============ 资讯列表 ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.filter-tag{
  display:inline-flex;align-items:center;
  padding:8px 16px;
  border-radius:999px;
  background:var(--base);
  border:1px solid transparent;
  font-size:14px;color:var(--text-muted);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-tag:hover{background:var(--accent-soft);color:var(--accent);}
.filter-tag.is-active{background:var(--primary);color:#fff;border-color:var(--primary);}
.info-grid > .cell{margin-bottom:24px;}
.info-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  color:var(--text);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,59,52,.24);color:var(--text);}
.info-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--base);}
.info-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.info-card:hover .info-thumb img{transform:scale(1.03);}
.info-body{display:flex;flex-direction:column;flex:1;padding:18px 20px 20px;}
.tag-cat{
  align-self:flex-start;
  padding:4px 10px;
  border-radius:999px;
  background:var(--accent-soft);
  color:var(--accent);
  font-size:12px;font-weight:600;
  margin-bottom:12px;
}
.info-title{
  font-size:17px;font-weight:700;line-height:1.45;
  color:var(--primary-ink);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.info-card:hover .info-title{color:var(--primary);}
.info-summary{
  flex:1;
  font-size:14px;line-height:1.7;color:var(--text-muted);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.info-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-faint);
}
.info-foot svg{width:15px;height:15px;color:var(--primary);transition:transform .2s ease;}
.info-card:hover .info-foot svg{transform:translateX(4px);}
.info-empty{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;height:220px;
  border:1px dashed var(--line);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.6);
  text-align:center;
}
.info-empty svg{width:44px;height:44px;color:var(--line);}
.info-empty p{font-size:15px;color:var(--text-muted);}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 2fr;gap:36px;align-items:start;}
.faq-aside h2{
  position:relative;padding-left:16px;
  font-size:32px;line-height:1.3;font-weight:700;color:var(--primary-ink);
}
.faq-aside h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--primary);
}
.faq-aside p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--text-muted);}
.faq-contact{
  margin-top:22px;padding:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
}
.faq-contact strong{display:block;font-size:15px;color:var(--primary-ink);margin-bottom:6px;}
.faq-contact span{display:block;font-size:13px;color:var(--text-muted);margin-bottom:12px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;min-height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;
  background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--primary-ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-sign{
  flex:0 0 auto;width:26px;height:26px;
  display:grid;place-items:center;
  border:1.5px solid var(--line);border-radius:50%;
  color:var(--primary);font-size:16px;line-height:1;
  transition:transform .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-sign{background:var(--accent);border-color:var(--accent);color:#fff;transform:rotate(45deg);}
.faq-a{
  display:none;
  padding:0 0 22px;
  max-width:680px;
  font-size:15px;line-height:1.8;color:var(--text-muted);
}
.faq-item.is-open .faq-a{display:block;}

/* ============ CTA 表单 ============ */
.cta-panel{
  position:relative;overflow:hidden;
  padding:56px;
  background:var(--primary-ink);
  border-radius:24px;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:320px;height:320px;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 8px,transparent 8px 16px);
  border-radius:32px;pointer-events:none;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.cta-copy h2{font-size:32px;line-height:1.3;font-weight:700;color:#fff;margin-bottom:16px;}
.cta-copy p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.74);margin-bottom:24px;max-width:460px;}
.cta-points{display:grid;gap:12px;}
.cta-point{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9);}
.cta-point svg{width:18px;height:18px;flex:0 0 auto;margin-top:3px;color:var(--accent);}
.form-card{
  padding:28px;
  background:var(--surface);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
}
.form-card h3{font-size:20px;font-weight:700;color:var(--primary-ink);margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--text-faint);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:52px;
  padding:0 14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  font-size:15px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#B3B8B4;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(196,98,45,.14);
}
.field input:focus-visible,.field select:focus-visible,.field textarea:focus-visible{outline:none;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.form-privacy{margin-top:12px;font-size:12px;line-height:1.6;color:var(--text-faint);}
.form-ok{
  display:none;
  margin-top:14px;padding:12px 14px;
  background:rgba(63,111,82,.10);
  border:1px solid rgba(63,111,82,.3);
  border-radius:var(--radius-md);
  font-size:13px;color:var(--success);
}
.form-ok.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:64px 0 0;
  background:var(--primary-ink);
  color:rgba(255,255,255,.72);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand .brand-name{color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px;padding-top:12px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{
  display:inline-block;
  font-size:14px;color:rgba(255,255,255,.68);
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);}
.footer-contact li b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:44px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1279px){
  .hero h1{font-size:44px;}
}
@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-panel{height:64px;padding:0 16px;}
  .brand-name{font-size:15px;}
  .section{padding:36px 0;}
  .section-head h2{font-size:27px;}
  .hero{padding:28px 0 0;}
  .hero h1{font-size:36px;}
  .hero-visual{margin-top:32px;padding:0 12px 12px 0;}
  .hero-mini{width:140px;}
  .steps{grid-template-columns:1fr;}
  .step-card + .step-card::after{
    left:38px;top:-24px;width:0;height:24px;border-top:0;border-left:2px dashed var(--line);
  }
  .case-grid{grid-template-columns:1fr;}
  .case-main{min-height:300px;}
  .faq-grid{grid-template-columns:1fr;gap:24px;}
  .cta-panel{padding:36px;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-about{max-width:none;}
}
@media screen and (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:28px 0;}
  .hero h1{font-size:30px;letter-spacing:0;}
  .hero-sub{font-size:16px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{width:100%;}
  .section-head h2{font-size:24px;}
  .section-head{align-items:flex-start;flex-direction:column;gap:12px;margin-bottom:24px;}
  .step-card h3{font-size:19px;}
  .step-card + .step-card::after{left:34px;}
  .case-main-body{padding:20px;}
  .case-main-body h3{font-size:19px;}
  .metric b{font-size:32px;}
  .case-mini{grid-template-columns:88px 1fr;gap:12px;padding:14px;}
  .case-mini img{width:88px;height:66px;}
  .cta-panel{padding:24px;border-radius:var(--radius-lg);}
  .cta-copy h2{font-size:24px;}
  .form-card{padding:20px;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .faq-aside h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-contact{order:-1;}
  .footer-links{grid-template-columns:1fr 1fr;}
  .site-footer{margin-top:56px;padding-top:44px;}
  .btn{height:48px;padding:0 22px;}
  .btn-sm{height:40px;padding:0 18px;}
  .trust-item{font-size:12px;padding:7px 12px;}
}

/* roulang page: article */
:root{
  --primary:#1F3B34;
  --primary-strong:#2C5348;
  --primary-ink:#14231F;
  --accent:#C4622D;
  --accent-soft:#F0DCCF;
  --surface:#FFFFFF;
  --base:#F6F2EA;
  --base-deep:#EFE8DC;
  --line:#DFD7C9;
  --text:#1A1D1B;
  --text-muted:#5A625E;
  --text-faint:#8A8F8B;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(20,35,31,.06), 0 10px 24px -16px rgba(20,35,31,.20);
  --shadow-2:0 2px 6px rgba(20,35,31,.08), 0 18px 40px -20px rgba(20,35,31,.28);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,h5,h6{font-family:var(--font-cn);margin:0;color:var(--primary-ink);font-weight:700;line-height:1.3;}
h1{font-size:34px;line-height:1.25;}
h2{font-size:32px;}
h3{font-size:22px;}
h4{font-size:17px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:3px solid rgba(196,98,45,.45);outline-offset:2px;border-radius:6px;}

.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:50px;padding:0 28px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .18s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-outline{background:var(--surface);border-color:var(--primary);color:var(--primary);}
.btn-outline:hover{background:var(--base);color:var(--primary);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#A94F21;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-accent:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;
  border:0;background:none;padding:0;transition:color .2s ease;
}
.btn-text .arrow{transition:transform .2s ease;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover .arrow{transform:translateX(4px);}

/* ---------- 卡片化导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0;background:transparent;transition:background .25s ease,box-shadow .25s ease,padding .25s ease;}
.site-header.is-scrolled{background:rgba(246,242,234,.94);box-shadow:0 10px 26px -20px rgba(20,35,31,.55);padding:8px 0;backdrop-filter:blur(8px);}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:0 20px;height:72px;box-shadow:var(--shadow-1);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;display:grid;place-items:center;flex-shrink:0;}
.brand-mark svg{width:18px;height:18px;}
.brand-name{font-size:17px;font-weight:700;color:var(--primary-ink);white-space:nowrap;letter-spacing:.2px;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-item{
  display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:12px;
  border:1px solid transparent;transition:background .2s ease,border-color .2s ease,transform .2s ease;
  position:relative;min-height:44px;
}
.nav-item:hover{background:var(--base);border-color:rgba(31,59,52,.3);transform:translateY(-1px);}
.nav-item.is-active{background:rgba(31,59,52,.12);}
.nav-item.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--accent);}
.ni-icon{width:28px;height:28px;flex-shrink:0;display:grid;place-items:center;color:var(--primary);}
.ni-icon svg{width:20px;height:20px;}
.ni-label{display:block;font-size:14px;font-weight:600;color:var(--primary-ink);line-height:1.25;}
.ni-sub{display:block;font-size:12px;color:var(--text-faint);line-height:1.3;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--primary);place-items:center;}
.nav-toggle svg{width:20px;height:20px;}
.nav-drawer{display:none;margin-top:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:12px;box-shadow:var(--shadow-1);}
.nav-drawer.is-open{display:block;}
.drawer-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px;transition:background .2s ease;}
.drawer-item:hover{background:var(--base);}
.drawer-cta{margin-top:10px;}

/* ---------- 文章页头部 ---------- */
.article-top{position:relative;padding:28px 0 12px;background:
  linear-gradient(180deg,rgba(255,255,255,.9),rgba(246,242,234,0) 70%),
  repeating-linear-gradient(90deg,rgba(31,59,52,.05) 0 1px,transparent 1px 8px);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-muted);margin-bottom:20px;}
.breadcrumb a{color:var(--text-muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--text-faint);}
.breadcrumb .now{color:var(--primary-ink);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:820px;}
.article-head h1{font-size:40px;line-height:1.24;margin:14px 0 18px;letter-spacing:0;}
.badge-accent{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--accent-soft);color:#8E441C;font-size:13px;font-weight:600;
}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--text-muted);padding-bottom:8px;}
.article-meta b{color:var(--primary-ink);font-weight:600;}

/* ---------- 封面 ---------- */
.article-cover{max-width:1000px;margin:22px auto 0;}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-1);}
.article-cover figcaption{font-size:13px;color:var(--text-faint);text-align:center;margin-top:10px;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 220px;gap:48px;
  justify-content:center;align-items:start;padding:44px 0 8px;
}
.toc-box{
  position:sticky;top:110px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:18px;box-shadow:var(--shadow-1);
}
.toc-title{font-size:13px;font-weight:700;color:var(--text-faint);letter-spacing:.08em;margin-bottom:10px;}
.toc-link{display:block;font-size:14px;color:var(--text-muted);padding:7px 10px;border-radius:8px;border-left:2px solid transparent;line-height:1.5;transition:all .2s ease;}
.toc-link:hover{background:var(--base);color:var(--primary);}
.toc-link.is-current{color:var(--primary);background:var(--base);border-left-color:var(--accent);font-weight:600;}

.article-content{font-size:17px;color:var(--text);}
.article-content > *:first-child{margin-top:0;}
.article-content p{line-height:1.85;margin:0 0 1.25em;}
.article-content h2{
  font-size:26px;line-height:1.35;margin:44px 0 16px;padding-left:14px;border-left:4px solid var(--primary);
}
.article-content h3{font-size:21px;margin:30px 0 12px;color:var(--primary-ink);}
.article-content h4{font-size:17px;margin:22px 0 10px;}
.article-content ul,.article-content ol{margin:0 0 1.25em;padding-left:24px;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:8px;line-height:1.8;}
.article-content blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--accent);background:#FBF5EF;
  border-radius:0 12px 12px 0;color:var(--text-muted);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:12px;margin:22px auto;box-shadow:var(--shadow-1);}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:13px;color:var(--text-faint);text-align:center;margin-top:8px;}
.article-content a{color:var(--primary);text-decoration:underline;text-decoration-color:rgba(31,59,52,.35);}
.article-content a:hover{color:var(--accent);text-decoration-color:var(--accent);}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden;}
.article-content th,.article-content td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-content thead th{background:var(--base-deep);color:var(--primary-ink);font-weight:600;}
.article-content tbody tr:nth-child(even){background:#FBF8F3;}
.article-content tbody tr:last-child td{border-bottom:0;}
.article-content code{background:var(--base-deep);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--surface);
  padding:48px 28px;text-align:center;
}
.empty-state h2{font-size:24px;margin-bottom:10px;}
.empty-state p{color:var(--text-muted);margin-bottom:22px;}

/* ---------- 标签与返回 ---------- */
.article-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin:40px 0 0;padding-top:22px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:var(--accent-soft);color:#8E441C;font-size:13px;font-weight:600;}
.tag-plain{background:var(--base);color:var(--text-muted);border:1px solid var(--line);}

/* ---------- 相关推荐 ---------- */
.section{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:32px;display:flex;align-items:flex-start;gap:12px;}
.sec-index{font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.08em;padding-top:8px;}
.section-head p{color:var(--text-muted);font-size:15px;margin:8px 0 0;}
.rec-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;height:100%;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,59,52,.28);}
.rec-card .thumb{width:100%;aspect-ratio:16/9;object-fit:cover;}
.rec-body{padding:20px;}
.rec-body h3{font-size:18px;line-height:1.45;margin-bottom:10px;}
.rec-card:hover .rec-body h3{color:var(--primary);}
.rec-body p{font-size:14px;color:var(--text-muted);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.rec-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--text-faint);}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;background:var(--primary-ink);border-radius:24px;
  padding:56px;color:#fff;box-shadow:var(--shadow-2);
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:320px;height:320px;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 2px,transparent 2px 12px);
  transform:rotate(6deg);pointer-events:none;
}
.cta-panel h2{color:#fff;font-size:32px;line-height:1.35;margin-bottom:14px;}
.cta-panel .lead{color:rgba(255,255,255,.78);font-size:16px;max-width:460px;margin-bottom:22px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.9);font-size:15px;margin-bottom:12px;line-height:1.7;}
.cta-list .tick{width:22px;height:22px;border-radius:50%;background:rgba(196,98,45,.9);display:grid;place-items:center;flex-shrink:0;margin-top:2px;}
.cta-list .tick svg{width:13px;height:13px;}
.form-card{
  position:relative;z-index:2;background:var(--surface);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-2);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:14px;color:var(--text-muted);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:52px;padding:0 14px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(196,98,45,.16);
}
.form-privacy{font-size:12px;color:var(--text-faint);margin:12px 0 0;line-height:1.6;}
.form-tip{display:none;margin-top:12px;font-size:14px;color:#3F6F52;background:#EEF5F0;border-radius:10px;padding:10px 12px;}
.form-tip.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-ink);color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--primary-strong);}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin:0;max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:4px 0 14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.76);transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.76);margin-bottom:10px;line-height:1.7;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:18px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  h1{font-size:30px;}
  .nav-panel{height:60px;padding:0 14px;gap:12px;}
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .nav-actions .btn-primary{display:none;}
  .article-head h1{font-size:30px;}
  .article-layout{grid-template-columns:1fr;gap:26px;padding:32px 0 0;}
  .toc-box{position:static;order:-1;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .cta-panel{padding:36px;}
  .cta-panel h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media screen and (max-width:639px){
  .container{padding:0 20px;}
  .brand-name{font-size:15px;}
  .article-head h1{font-size:26px;}
  .article-content{font-size:16px;}
  .article-content h2{font-size:21px;margin-top:34px;}
  .article-content h3{font-size:18px;}
  .section{padding:44px 0;}
  .section-head h2{font-size:23px;}
  .cta-panel{padding:26px 20px;border-radius:18px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --primary:#1F3B34;
  --primary-strong:#2C5348;
  --primary-ink:#14231F;
  --accent:#C4622D;
  --accent-soft:#F0DCCF;
  --surface:#FFFFFF;
  --base:#F6F2EA;
  --line:#DFD7C9;
  --text:#1A1D1B;
  --text-muted:#5A625E;
  --text-faint:#8A8F8B;
  --success:#3F6F52;
  --warn:#B07A2B;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(20,35,31,.06),0 10px 24px -16px rgba(20,35,31,.20);
  --shadow-2:0 2px 6px rgba(20,35,31,.08),0 18px 40px -20px rgba(20,35,31,.28);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","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:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--base);
  overflow-x:hidden;
  font-weight:400;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--primary-ink);line-height:1.3;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,select,textarea{font-family:inherit}
:focus-visible{outline:3px solid rgba(196,98,45,.4);outline-offset:2px;border-radius:6px}
.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:50px;padding:0 28px;border-radius:999px;
  font-size:16px;font-weight:600;line-height:1;white-space:nowrap;
  border:1.5px solid transparent;background:transparent;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-1)}
.btn-ghost{background:var(--surface);color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--base);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#AC5324;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-accent:active{transform:translateY(1px)}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.8);transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--primary)}
.btn-white:hover{background:var(--accent-soft);color:var(--primary);transform:translateY(-1px)}
.btn-link{display:inline-flex;align-items:center;gap:8px;height:auto;padding:0;border:0;background:transparent;color:var(--primary);font-size:15px;font-weight:600}
.btn-link .arrow{transition:transform .2s ease}
.btn-link:hover{color:var(--accent)}
.btn-link:hover .arrow{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0;background:transparent;transition:background .25s ease,box-shadow .25s ease}
.site-header.is-scrolled{background:rgba(246,242,234,.94);box-shadow:0 12px 32px -26px rgba(20,35,31,.5)}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  min-height:72px;padding:0 20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;flex:0 0 32px;
}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:17px;font-weight:700;color:var(--primary-ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:var(--radius-md);
  border:1px solid transparent;background:transparent;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.nav-item:hover{background:var(--base);border-color:rgba(31,59,52,.3);transform:translateY(-1px)}
.nav-item.is-active{background:rgba(31,59,52,.12);color:var(--primary)}
.nav-item.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--accent)}
.ni-icon{width:28px;height:28px;border-radius:8px;background:rgba(31,59,52,.08);color:var(--primary);display:grid;place-items:center;flex:0 0 28px}
.ni-icon svg{width:16px;height:16px}
.nav-item span{display:block}
.ni-label{font-size:14px;font-weight:600;color:var(--primary-ink);line-height:1.35}
.nav-item.is-active .ni-label{color:var(--primary)}
.ni-sub{font-size:12px;color:var(--text-faint);line-height:1.35}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-md);border:1px solid var(--line);background:var(--surface);color:var(--primary);place-items:center}
.nav-toggle svg{width:20px;height:20px}
.nav-drawer{display:none;margin-top:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:14px;box-shadow:var(--shadow-1)}
.nav-drawer.is-open{display:block}
.drawer-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:var(--radius-md);border:1px solid transparent}
.drawer-item:hover{background:var(--base);border-color:rgba(31,59,52,.25)}
.drawer-item.is-active{background:rgba(31,59,52,.12);border-color:rgba(31,59,52,.28)}
.drawer-item .btn{margin-top:14px}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;border-radius:24px;
  padding:64px 48px 56px;
  background:#14231F url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,35,31,.92) 0%,rgba(31,59,52,.82) 52%,rgba(20,35,31,.68) 100%);
}
.page-hero > *{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72)}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:var(--accent-soft)}
.crumbs .sep{color:rgba(255,255,255,.4)}
.page-hero h1{
  margin:20px 0 16px;color:#fff;
  font-size:clamp(30px,4vw,48px);line-height:1.2;max-width:860px;
}
.page-hero .lede{max-width:700px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.84)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 板块通用 ---------- */
main{padding-top:24px}
.section{padding:96px 0}
.section-compact{padding:56px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.08em}
.eyebrow::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary)}
.section-head h2{margin-top:14px;font-size:clamp(24px,3vw,32px);line-height:1.3}
.section-head p{margin-top:14px;color:var(--text-muted);font-size:16px;max-width:680px}

/* ---------- 图文交错 ---------- */
.zig-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:36px 0}
.zig-row + .zig-row{border-top:1px dashed var(--line)}
.zig-row.is-reverse .zig-media{order:2}
.zig-media{position:relative}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);border:1px solid var(--line);box-shadow:var(--shadow-1)}
.zig-media.arch img{border-radius:150px 150px var(--radius-lg) var(--radius-lg)}
.zig-media.frame::after{
  content:"";position:absolute;left:18px;top:18px;right:-18px;bottom:-18px;
  border:1px solid rgba(196,98,45,.42);border-radius:var(--radius-lg);z-index:-1;
}
.zig-media.frame.arch::after{border-radius:150px 150px var(--radius-lg) var(--radius-lg)}
.zig-index{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--accent)}
.zig-body h3{margin:10px 0 14px;font-size:22px}
.zig-body p{color:var(--text-muted);font-size:16px;margin-bottom:16px}
.zig-list{list-style:none;display:grid;gap:10px}
.zig-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-muted)}
.zig-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:4px;
  background:var(--accent-soft);border:1px solid rgba(196,98,45,.5);
}

/* ---------- 要点卡 ---------- */
.point-grid{margin-left:-12px!important;margin-right:-12px!important}
.point-cell{padding-left:12px!important;padding-right:12px!important;margin-bottom:24px}
.point-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,59,52,.24)}
.point-icon{width:48px;height:48px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center;margin-bottom:18px}
.point-icon svg{width:22px;height:22px}
.point-card h3{font-size:19px;margin-bottom:10px}
.point-card p{font-size:15px;color:var(--text-muted);margin:0}
.point-foot{margin-top:16px;font-size:13px;color:var(--text-faint)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 2fr;gap:48px;align-items:start}
.faq-aside{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-1)}
.faq-aside h2{font-size:24px;margin-bottom:12px}
.faq-aside p{font-size:15px;color:var(--text-muted)}
.faq-aside .aside-line{height:1px;background:var(--line);margin:20px 0}
.faq-aside .aside-meta{font-size:13px;color:var(--text-faint);line-height:1.8}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:72px;padding:18px 24px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--primary-ink);line-height:1.55;
  transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--base)}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--line);color:var(--primary);
  display:grid;place-items:center;transition:transform .28s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-icon svg{width:14px;height:14px}
.faq-item.is-open .faq-icon{background:var(--accent);border-color:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a-inner{padding:0 24px 22px}
.faq-a p{font-size:16px;line-height:1.85;color:var(--text-muted)}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--primary-ink);color:#fff;
  border-radius:24px;padding:56px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.cta-stripe{
  position:absolute;right:-60px;bottom:-60px;width:340px;height:340px;border-radius:50%;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 12px);
  pointer-events:none;
}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{color:#fff;font-size:clamp(24px,3vw,32px);line-height:1.3}
.cta-panel .cta-desc{margin-top:16px;font-size:16px;color:rgba(255,255,255,.78);max-width:520px}
.cta-list{list-style:none;display:grid;gap:12px;margin-top:24px}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-list .tick{
  flex:0 0 20px;width:20px;height:20px;border-radius:6px;background:var(--accent);color:#fff;
  display:grid;place-items:center;margin-top:3px;
}
.cta-list .tick svg{width:12px;height:12px}
.form-card{background:var(--surface);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-1);color:var(--text)}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-card .form-hint{font-size:13px;color:var(--text-faint);margin-bottom:18px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--primary-ink);margin-bottom:8px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;height:52px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:#fff;color:var(--text);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row textarea{height:104px;padding:14px 16px;resize:vertical;line-height:1.7}
.form-row input::placeholder,.form-row textarea::placeholder{color:var(--text-faint)}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,98,45,.18);
}
.form-note{margin-top:14px;font-size:13px;line-height:1.7;color:var(--text-faint)}
.form-status{display:none;margin-top:12px;font-size:14px;color:var(--success);font-weight:600}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:center;text-align:center}
.back-row .back-text{width:100%;font-size:14px;color:var(--text-muted);margin-bottom:4px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;padding:64px 0 28px;background:var(--primary-ink);color:rgba(255,255,255,.76)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-brand .brand-name{color:#fff;font-size:17px}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px}
.footer-links a{display:block;padding:6px 0;font-size:15px;color:rgba(255,255,255,.72);transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--accent);transform:translateX(2px)}
.footer-contact{list-style:none;font-size:14px;line-height:1.9;color:rgba(255,255,255,.72)}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .container{padding:0 20px}
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .nav-panel{min-height:64px;padding:0 16px}
  .nav-actions .btn{display:none}
  .page-hero{padding:48px 32px 44px}
  .section{padding:72px 0}
  .zig-row{grid-template-columns:1fr;gap:28px;padding:28px 0}
  .zig-row.is-reverse .zig-media{order:0}
  .zig-media.frame::after{display:none}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-contact{grid-column:1 / -1}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  .brand-name{font-size:15px}
  .page-hero{padding:36px 22px 32px;border-radius:18px}
  .page-hero .lede{font-size:15px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .zig-body h3{font-size:19px}
  .point-card{padding:22px}
  .faq-q{font-size:16px;padding:16px 18px;min-height:64px}
  .faq-a-inner{padding:0 18px 18px}
  .faq-a p{font-size:15px}
  .cta-panel{padding:28px 22px;border-radius:18px}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .back-row .btn{width:100%}
}
@media screen and (max-width:400px){
  .container{padding:0 16px}
  .brand-name{font-size:14px}
}

/* roulang page: category2 */
:root{
  --primary:#1F3B34;
  --primary-strong:#2C5348;
  --primary-ink:#14231F;
  --accent:#C4622D;
  --accent-deep:#A94F22;
  --accent-soft:#F0DCCF;
  --surface:#FFFFFF;
  --base:#F6F2EA;
  --line:#DFD7C9;
  --text:#1A1D1B;
  --text-muted:#5A625E;
  --text-faint:#8A8F8B;
  --success:#3F6F52;
  --warn:#B07A2B;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(20,35,31,.06), 0 10px 24px -16px rgba(20,35,31,.20);
  --shadow-2:0 2px 6px rgba(20,35,31,.08), 0 18px 40px -20px rgba(20,35,31,.28);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:3px solid rgba(196,98,45,.4);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 网格 ---------- */
.grid-x{display:flex;flex-flow:row wrap;margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;width:100%;min-width:0;}
@media screen and (min-width:640px){
  .medium-6{flex:0 0 50%;max-width:50%;}
}
@media screen and (min-width:1024px){
  .large-4{flex:0 0 33.3333%;max-width:33.3333%;}
  .large-5{flex:0 0 41.6667%;max-width:41.6667%;}
  .large-6{flex:0 0 50%;max-width:50%;}
  .large-7{flex:0 0 58.3333%;max-width:58.3333%;}
  .large-8{flex:0 0 66.6667%;max-width:66.6667%;}
  .large-12{flex:0 0 100%;max-width:100%;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:14px 0;
  background:transparent;
  transition:background .25s ease, padding .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(246,242,234,.94);
  padding:8px 0;
  box-shadow:0 10px 30px -24px rgba(20,35,31,.5);
}
.nav-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:72px;
  padding:0 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--shadow-2);}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:12px;
  border:1px solid transparent;
  color:var(--text-muted);
  transition:background .2s ease, border-color .2s ease, transform .2s ease, color .2s ease;
}
.nav-item:hover{
  background:var(--base);
  border-color:rgba(31,59,52,.3);
  color:var(--primary);
  transform:translateY(-1px);
}
.nav-item.is-active{background:rgba(31,59,52,.12);color:var(--primary);}
.nav-item.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--accent);border-radius:2px;
}
.ni-icon{
  width:28px;height:28px;border-radius:8px;flex:0 0 auto;
  background:var(--base);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.ni-icon svg{width:16px;height:16px;}
.ni-label{display:block;font-size:14px;font-weight:600;line-height:1.35;color:inherit;}
.ni-sub{display:block;font-size:12px;line-height:1.35;color:var(--text-faint);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;
  align-items:center;justify-content:center;
  background:var(--surface);color:var(--primary);
  border:1px solid var(--line);border-radius:12px;cursor:pointer;
  transition:background .2s ease, border-color .2s ease;
}
.nav-toggle:hover{background:var(--base);border-color:rgba(31,59,52,.3);}
.nav-toggle svg{width:22px;height:22px;}
.nav-drawer{
  display:none;
  margin-top:10px;padding:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
}
.nav-drawer.is-open{display:block;}
.drawer-item{
  display:block;padding:12px 14px;border-radius:12px;
  border:1px solid transparent;color:var(--text);
  font-size:15px;font-weight:600;
}
.drawer-item span{display:block;font-size:12px;font-weight:400;color:var(--text-faint);margin-top:2px;}
.drawer-item:hover{background:var(--base);border-color:rgba(31,59,52,.2);color:var(--primary);}
.drawer-item.is-active{background:rgba(31,59,52,.1);border-color:rgba(31,59,52,.18);color:var(--primary);}
.nav-drawer .btn{margin-top:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-strong);border-color:var(--primary-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:var(--surface);color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--base);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-accent:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-hero-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.55);}
.btn-hero-ghost:hover{background:rgba(255,255,255,.18);color:#fff;border-color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 页头 banner ---------- */
.page-hero{
  position:relative;
  margin-top:26px;
  border-radius:24px;
  overflow:hidden;
  background-image:
    linear-gradient(92deg, rgba(20,35,31,.90) 0%, rgba(20,35,31,.74) 40%, rgba(31,59,52,.38) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:60px 48px 56px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:8px 8px;
  opacity:.6;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:720px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.4);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.hero-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.92);
}
.hero-title{
  font-size:46px;line-height:1.2;font-weight:700;letter-spacing:0;
  margin-bottom:18px;
}
.hero-desc{
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);
  max-width:640px;margin-bottom:26px;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  padding-top:22px;margin-bottom:28px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-meta-item{font-size:14px;color:rgba(255,255,255,.72);}
.hero-meta-item b{display:block;font-size:15px;color:#fff;font-weight:600;letter-spacing:.2px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 板块通用 ---------- */
.section{padding:48px 0;}
.section-tight{padding:34px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;}
.sec-index{
  display:block;font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--accent);margin-bottom:8px;
}
.sec-title{
  font-size:32px;line-height:1.3;font-weight:700;
  padding-left:14px;border-left:4px solid var(--primary);
  margin-bottom:10px;
}
.sec-desc{font-size:15px;color:var(--text-muted);max-width:640px;padding-left:18px;}
.sec-head-main{max-width:760px;}

/* ---------- 要点清单卡（左栏 sticky） ---------- */
.key-card{
  position:sticky;top:104px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
}
.key-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.key-card .key-sub{font-size:13px;color:var(--text-faint);margin-bottom:18px;}
.key-list li{
  position:relative;padding:12px 0 12px 30px;
  font-size:15px;color:var(--text);
  border-bottom:1px dashed var(--line);
}
.key-list li:last-child{border-bottom:none;}
.key-list li::before{
  content:"";position:absolute;left:0;top:20px;
  width:14px;height:14px;border-radius:4px;
  background:var(--accent-soft);
  border:1.5px solid var(--accent);
}
.key-foot{
  margin-top:20px;padding:16px 16px 18px;
  background:var(--base);border-radius:var(--radius-md);
  border:1px solid var(--line);
}
.key-foot p{font-size:14px;color:var(--text-muted);margin-bottom:12px;}

/* ---------- 横向内容卡 ---------- */
.h-card-list{display:flex;flex-direction:column;gap:24px;}
.h-card{
  display:flex;gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:18px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.h-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,59,52,.24);}
.h-card-media{
  flex:0 0 208px;width:208px;aspect-ratio:4/3;
  border-radius:var(--radius-md);overflow:hidden;background:var(--base);
}
.h-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.h-card:hover .h-card-media img{transform:scale(1.04);}
.h-card-body{flex:1 1 auto;min-width:0;padding:2px 4px;}
.h-card-step{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--radius-sm);font-size:12px;font-weight:600;
  background:var(--accent-soft);color:var(--accent);margin-bottom:10px;
}
.h-card-body h3{font-size:20px;font-weight:700;margin-bottom:8px;line-height:1.4;transition:color .2s ease;}
.h-card:hover .h-card-body h3{color:var(--primary);}
.h-card-body p{font-size:14.5px;color:var(--text-muted);line-height:1.75;margin-bottom:12px;}
.h-card-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--text-faint);}
.h-card-meta b{color:var(--primary);font-weight:600;}

/* ---------- 对比说明 ---------- */
.compare-grid{display:flex;flex-wrap:wrap;gap:24px;}
.compare-card{
  flex:1 1 340px;min-width:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,59,52,.24);}
.compare-card.is-accent{border-top:4px solid var(--accent);}
.compare-card.is-primary{border-top:4px solid var(--primary);}
.compare-card h3{font-size:21px;font-weight:700;margin-bottom:6px;}
.compare-card .cc-sub{font-size:13.5px;color:var(--text-faint);margin-bottom:18px;}
.cc-list{display:flex;flex-direction:column;gap:0;}
.cc-list li{
  display:flex;gap:14px;padding:12px 0;
  border-bottom:1px dashed var(--line);font-size:15px;line-height:1.7;
}
.cc-list li:last-child{border-bottom:none;}
.cc-list .cc-key{flex:0 0 84px;color:var(--text-faint);font-size:14px;}
.cc-list .cc-val{flex:1 1 auto;color:var(--text);min-width:0;}

/* ---------- 数据指标 ---------- */
.stat-grid{display:flex;flex-wrap:wrap;gap:24px;}
.stat-card{
  flex:1 1 220px;min-width:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
  transition:transform .25s ease, box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.stat-num{
  font-size:46px;line-height:1.05;font-weight:700;
  color:var(--primary);letter-spacing:-.5px;
  display:flex;align-items:baseline;gap:6px;
}
.stat-num .unit{font-size:14px;font-weight:600;color:var(--text-muted);letter-spacing:0;}
.stat-label{font-size:15px;font-weight:600;margin-top:10px;}
.stat-note{font-size:13.5px;color:var(--text-muted);margin-top:4px;line-height:1.65;}

/* ---------- FAQ ---------- */
.faq-side{max-width:340px;}
.faq-contact{
  margin-top:20px;padding:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
}
.faq-contact p{font-size:14px;color:var(--text-muted);margin-bottom:14px;}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:6px 24px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:72px;padding:18px 0;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-q .fq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--line);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open .fq-icon{background:var(--accent);border-color:var(--accent);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease, padding .3s ease;
}
.faq-item.is-open .faq-a{max-height:420px;padding-bottom:20px;}
.faq-a p{font-size:15px;line-height:1.85;color:var(--text-muted);}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--primary-ink);
  border-radius:24px;
  padding:56px;
  color:#fff;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:320px;height:320px;
  background-image:repeating-linear-gradient(45deg, rgba(255,255,255,.06) 0 2px, transparent 2px 12px);
  pointer-events:none;
}
.cta-grid{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:40px;align-items:flex-start;}
.cta-left{flex:1 1 320px;min-width:0;}
.cta-left h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:14px;}
.cta-left p{font-size:16px;color:rgba(255,255,255,.78);margin-bottom:24px;max-width:460px;}
.cta-points{display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9);}
.cta-points .tick{
  flex:0 0 20px;width:20px;height:20px;border-radius:6px;
  background:var(--primary-strong);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;margin-top:3px;
}
.cta-right{flex:0 1 420px;min-width:280px;}
.form-card{
  background:var(--surface);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
  padding:28px;
  color:var(--text);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.form-card .form-sub{font-size:13.5px;color:var(--text-muted);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text-muted);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:52px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border:2px solid var(--accent);
  box-shadow:0 0 0 4px rgba(196,98,45,.12);
}
.form-note{font-size:12.5px;color:var(--text-faint);margin-top:12px;line-height:1.65;}
.form-msg{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-md);
  background:rgba(63,111,82,.1);border:1px solid rgba(63,111,82,.35);
  color:var(--success);font-size:14px;
}
.form-msg.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;
  background:var(--primary-ink);
  color:rgba(255,255,255,.78);
  padding:56px 0 24px;
}
.footer-grid{display:flex;flex-wrap:wrap;gap:36px;}
.footer-grid>div{flex:1 1 220px;min-width:0;}
.footer-grid>div:first-child{flex:1 1 320px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:380px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.3px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.75);transition:color .2s ease, transform .2s ease;}
.footer-links a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.75);line-height:1.9;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:36px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-panel{height:64px;padding:0 16px;}
  .brand-name{font-size:16px;}
  .page-hero{padding:48px 32px 44px;}
  .hero-title{font-size:36px;}
  .key-card{position:static;margin-bottom:24px;}
  .cta-panel{padding:40px 32px;}
  .faq-side{max-width:none;}
  .sec-title{font-size:28px;}
}
@media screen and (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:36px 0;}
  .page-hero{padding:36px 22px 34px;border-radius:20px;}
  .hero-title{font-size:30px;}
  .hero-desc{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .sec-head{flex-direction:column;align-items:flex-start;}
  .sec-title{font-size:24px;}
  .sec-desc{padding-left:0;}
  .h-card{flex-direction:column;gap:14px;}
  .h-card-media{flex:none;width:100%;aspect-ratio:16/9;}
  .h-card-body{padding:0 2px 4px;}
  .compare-card{flex:1 1 100%;}
  .stat-card{flex:1 1 100%;}
  .stat-num{font-size:38px;}
  .faq-list{padding:4px 18px;}
  .faq-q{font-size:15.5px;min-height:64px;}
  .cta-panel{padding:32px 22px;border-radius:20px;}
  .cta-left h2{font-size:24px;}
  .form-card{padding:22px 18px;}
  .cta-right{flex:1 1 100%;min-width:0;}
  .footer-grid{gap:26px;}
  .footer-grid>div{flex:1 1 100%;}
  .footer-grid>div:nth-child(3){order:-1;}
  .footer-links{flex-direction:row;flex-wrap:wrap;gap:10px 22px;}
  .footer-bottom{flex-direction:column;}
}
@media screen and (max-width:520px){
  .hero-title{font-size:27px;}
  .brand-name{font-size:15px;}
  .key-card{padding:20px 18px;}
  .stat-num{font-size:34px;}
}