/* roulang page: index */
:root {
  --primary: #1E2A24;
  --primary-dark: #18211C;
  --accent: #C8F04B;
  --accent-dark: #B7E83B;
  --bronze: #8F6A3C;
  --bg: #F5F4EF;
  --bg-muted: #EEF0E6;
  --text: #2A2D2A;
  --text-muted: #6E7370;
  --border: rgba(30,42,36,0.08);
  --border-strong: rgba(30,42,36,0.2);
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(24,33,28,0.06);
  --shadow-md: 0 8px 20px rgba(24,33,28,0.12);
  --transition: 0.25s ease-out;
  --container-max: 1200px;
  --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC","Inter","Roboto",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background-color:#eae8e2;object-fit:cover;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
ul{list-style:none;}
.container{
  max-width:var(--container-max);
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:640px){
  .container{padding:0 16px;}
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 24px;
  border-radius:var(--radius-md);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:var(--transition);
  cursor:pointer;
  line-height:1.4;
  white-space:nowrap;
}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.btn:active{transform:scale(0.98);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:#2A3A32;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:rgba(30,42,36,0.06);transform:translateY(-2px);}
.btn-dark{background:var(--primary);color:#fff;}
.btn-dark:hover{background:#2A3A32;box-shadow:var(--shadow-md);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:var(--primary);}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-lg{padding:14px 30px;font-size:16px;}
/*=========== Header ===========*/
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(245,244,239,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color 0.3s;
}
.site-header.scrolled{border-bottom-color:var(--border);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:20px;
  color:var(--primary);
  white-space:nowrap;
}
.brand-icon{
  width:36px;
  height:36px;
  border-radius:8px;
  background:var(--primary);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:16px;
  flex-shrink:0;
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-item{position:relative;}
.nav-link{
  display:block;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-radius:var(--radius-md);
  transition:color 0.2s,background 0.2s;
  position:relative;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:0;
  height:2px;
  background:var(--accent);
  transform:translateX(-50%);
  transition:width 0.25s ease;
  border-radius:2px;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after,.nav-item.active .nav-link::after{width:60%;}
.nav-item.active .nav-link{color:var(--primary);font-weight:600;}
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid var(--border-strong);
  border-radius:var(--radius-md);
  padding:8px 12px;
  font-size:16px;
  cursor:pointer;
  color:var(--primary);
}
.nav-toggle:hover{background:rgba(30,42,36,0.06);}
/* Mega Panel */
.mega-panel{
  position:absolute;
  top:72px;
  left:0;
  right:0;
  background:rgba(245,244,239,0.98);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-md);
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity 0.25s ease,transform 0.25s ease,visibility 0.25s;
  z-index:60;
}
.mega-panel.visible{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-inner{
  max-width:var(--container-max);
  margin:0 auto;
  padding:28px 32px;
}
.mega-links{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:16px;
}
.mega-link{
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:#fff;
  transition:var(--transition);
}
.mega-link:hover{
  border-color:rgba(30,42,36,0.16);
  box-shadow:var(--shadow-sm);
  transform:translateY(-2px);
}
.mega-icon{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--primary);
  color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  flex-shrink:0;
}
.mega-text strong{
  display:block;
  font-size:15px;
  color:var(--primary);
}
.mega-text small{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.4;
}
.mega-feature{
  display:flex;
  gap:14px;
  padding:18px;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:var(--primary);
  color:#fff;
  align-items:center;
  transition:var(--transition);
}
.mega-feature:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.mega-feature img{
  width:96px;height:64px;
  border-radius:8px;
  object-fit:cover;
  flex-shrink:0;
}
.mega-feature strong{
  display:block;
  font-size:15px;
  color:var(--accent);
}
.mega-feature small{
  font-size:13px;
  color:rgba(245,244,239,0.8);
}
/*=========== Hero ===========*/
.hero{
  position:relative;
  padding:100px 0 88px;
  background:
    radial-gradient(600px 240px at 85% 10%, rgba(200,240,75,0.06) 0%, transparent 70%),
    linear-gradient(180deg,#F5F4EF 0%,#F0EFE9 100%);
  overflow:hidden;
}
.hero-inner{
  display:flex;
  align-items:center;
  gap:60px;
}
.hero-copy{flex:1 1 55%;}
.hero-visual{flex:1 1 45%;}
.hero-tag{
  display:inline-block;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(30,42,36,0.06);
  color:var(--primary);
  font-size:13px;
  font-weight:500;
  margin-bottom:24px;
}
.hero h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  color:var(--primary);
  letter-spacing:-0.5px;
  margin-bottom:20px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-muted);
  max-width:520px;
  line-height:1.8;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:28px;
}
.hero-meta{
  display:flex;
  gap:22px;
  flex-wrap:wrap;
  font-size:14px;
  color:var(--text-muted);
}
.hero-meta span{display:flex;align-items:center;gap:6px;}
.hero-meta span::before{
  content:"✓";
  color:var(--accent-dark);
  font-weight:700;
}
.hero-visual{position:relative;}
.hero-photo{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  aspect-ratio:4/3;
  background:linear-gradient(135deg,#18211C 0%,#2E3A34 100%);
}
.hero-photo::before{
  content:"6t";
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:56px;
  font-weight:800;
  color:rgba(255,255,255,0.18);
}
.hero-photo img{
  width:100%;height:100%;
  object-fit:cover;
  position:relative;
  z-index:1;
}
.hero-photo::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(100% 100% at 100% 0%,rgba(24,33,28,0.35) 0%,transparent 50%);
  z-index:2;
}
.hero-accent{
  position:absolute;
  bottom:-14px;
  left:-12px;
  width:64px;
  height:8px;
  background:var(--accent);
  border-radius:4px;
}
.hero-badge{
  position:absolute;
  top:20px;
  right:20px;
  width:56px;height:56px;
  border-radius:50%;
  background:var(--bronze);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;
  font-weight:700;
  text-align:center;
  line-height:1.2;
  z-index:3;
}
/*=========== Section base ===========*/
.section{padding:72px 0;}
.section-head{
  text-align:center;
  margin-bottom:44px;
}
.section-head h2{
  font-size:30px;
  color:var(--primary);
  margin-bottom:10px;
}
.section-head p{
  color:var(--text-muted);
  font-size:15px;
}
.section-head.light h2{color:#fff;}
.section-head.light p{color:rgba(245,244,239,0.7);}
/*=========== Brand section ===========*/
.brand-section{padding:72px 0;background:#fff;}
.brand-grid{
  display:flex;
  align-items:center;
  gap:64px;
}
.brand-card{
  flex:0 0 36%;
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--primary);
  box-shadow:var(--shadow-md);
  min-height:340px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:32px;
}
.brand-card img{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:0.35;
}
.brand-logo-badge{
  position:relative;
  z-index:1;
  display:inline-block;
  background:var(--accent);
  color:var(--primary);
  font-weight:800;
  font-size:16px;
  padding:8px 18px;
  border-radius:var(--radius-pill);
  margin-bottom:14px;
  width:fit-content;
}
.brand-card-text{
  position:relative;
  z-index:1;
  color:#fff;
  font-size:16px;
  font-weight:500;
  line-height:1.6;
}
.brand-info{
  flex:1;
  padding:20px 0;
}
.brand-info h2{
  font-size:30px;
  color:var(--primary);
  margin-bottom:20px;
}
.brand-desc{
  color:var(--text-muted);
  line-height:1.9;
  margin-bottom:20px;
  max-width:600px;
}
.stat-grid{
  display:flex;
  gap:32px;
  margin-top:36px;
}
.stat-item{
  display:flex;
  flex-direction:column;
}
.stat-item strong{
  font-size:28px;
  color:var(--primary);
  line-height:1.3;
}
.stat-item span{
  font-size:13px;
  color:var(--text-muted);
}
/*=========== Featured cards ===========*/
.featured-section{padding:72px 0;}
.feature-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:var(--transition);
  height:100%;
  margin-bottom:0;
}
.feature-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
}
.card-img{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:linear-gradient(135deg,#18211C 0%,#2E3A34 100%);
}
.card-img::before{
  content:"6t";
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:30px;
  font-weight:800;
  color:rgba(255,255,255,0.2);
}
.card-img img{
  width:100%;height:100%;
  object-fit:cover;
  position:relative;
  z-index:1;
}
.card-tag{
  position:absolute;
  top:12px;left:12px;
  z-index:2;
  background:rgba(30,42,36,0.85);
  color:var(--accent);
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:var(--radius-pill);
}
.card-content{
  padding:20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-content h3{
  font-size:17px;
  color:var(--primary);
  line-height:1.5;
  margin-bottom:10px;
  font-weight:600;
}
.card-content p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.65;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.card-link{
  margin-top:auto;
  font-size:14px;
  font-weight:500;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition:gap 0.2s;
}
.card-link:hover{gap:8px;color:var(--primary);text-decoration:underline;}
/*=========== News list ===========*/
.news-section{
  padding:72px 0;
  background:var(--bg-muted);
}
.news-list{
  max-width:860px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.news-row{
  display:flex;
  gap:20px;
  background:#fff;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  padding:20px;
  transition:var(--transition);
}
.news-row:hover{
  box-shadow:var(--shadow-sm);
  background:#fff;
  transform:translateX(4px);
}
.news-thumb{
  flex:0 0 110px;
  width:110px;
  height:80px;
  border-radius:var(--radius-md);
  overflow:hidden;
  background:linear-gradient(135deg,#18211C,#2E3A34);
  position:relative;
}
.news-thumb::before{
  content:"6t";
  position:absolute;
  inset:0;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;
  color:rgba(255,255,255,0.25);
}
.news-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  position:relative;
  z-index:1;
}
.news-body{
  flex:1;
  min-width:0;
}
.badge{
  display:inline-block;
  padding:3px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:500;
}
.badge-cat{
  background:var(--bg-muted);
  color:var(--primary);
}
.news-title{
  font-size:17px;
  color:var(--primary);
  margin:6px 0 6px;
  line-height:1.4;
  font-weight:600;
}
.news-title a:hover{color:var(--primary);text-decoration:underline;}
.news-summary{
  font-size:14px;
  color:var(--text-muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  margin-bottom:8px;
}
.news-meta{
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--text-muted);
}
.news-meta a{
  color:var(--primary);
  font-weight:500;
  transition:gap 0.2s;
  display:inline-flex;
  align-items:center;
  gap:2px;
}
.news-meta a:hover{gap:6px;text-decoration:underline;}
.empty-state{
  background:#fff;
  border-radius:var(--radius-lg);
  border:1px dashed var(--border-strong);
  padding:48px 24px;
  text-align:center;
  color:var(--text-muted);
  font-size:15px;
}
/*=========== Trust section ===========*/
.trust-section{
  background:var(--primary);
  padding:72px 0;
}
.trust-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:40px;
}
.trust-item{
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  text-align:center;
  transition:var(--transition);
}
.trust-item:hover{
  background:rgba(255,255,255,0.07);
  transform:translateY(-3px);
}
.trust-icon{
  width:52px;height:52px;
  margin:0 auto 16px;
  border-radius:12px;
  background:rgba(143,106,60,0.35);
  color:var(--bronze);
  display:flex;align-items:center;justify-content:center;
}
.trust-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.trust-item h3{
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:8px;
}
.trust-item p{
  color:rgba(245,244,239,0.7);
  font-size:14px;
  line-height:1.65;
}
/*=========== FAQ ===========*/
.faq-section{padding:72px 0;}
.faq-list{
  max-width:760px;
  margin:0 auto;
}
.faq-item{
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  background:#fff;
  margin-bottom:12px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:rgba(30,42,36,0.16);}
.faq-question{
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  background:transparent;
  border:none;
  padding:18px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--primary);
  cursor:pointer;
  text-align:left;
  transition:background 0.2s;
}
.faq-question:hover{background:var(--bg-muted);}
.faq-icon{
  font-size:22px;
  font-weight:400;
  color:var(--text-muted);
  flex-shrink:0;
  transition:transform 0.3s;
  width:24px;
  text-align:center;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease;
}
.faq-answer p{
  padding:0 24px 20px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.8;
  background:var(--bg-muted);
  border-radius:0 0 8px 8px;
}
.faq-item.open .faq-answer{
  max-height:500px;
}
.faq-item.open .faq-icon{
  transform:rotate(180deg);
}
/*=========== CTA ===========*/
.cta-section{
  padding:72px 0;
  background:var(--bg);
}
.cta-box{
  background:var(--accent);
  border-radius:16px;
  padding:56px 48px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-box h2{
  font-size:28px;
  color:var(--primary);
  margin-bottom:12px;
}
.cta-box p{
  color:var(--primary);
  opacity:0.8;
  margin-bottom:28px;
}
.cta-form{
  display:flex;
  gap:12px;
  max-width:480px;
  margin:0 auto;
  justify-content:center;
}
.cta-form input{
  flex:1;
  height:44px;
  border-radius:var(--radius-md);
  border:1px solid rgba(30,42,36,0.2);
  padding:0 16px;
  font-size:15px;
  background:#fff;
  transition:var(--transition);
}
.cta-form input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(30,42,36,0.08);
  outline:none;
}
.cta-form .btn{
  height:44px;
}
/*=========== Footer ===========*/
.site-footer{
  background:var(--primary-dark);
  color:rgba(245,244,239,0.75);
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
  margin-bottom:44px;
}
.footer-brand .brand{
  color:#fff;
  margin-bottom:14px;
}
.footer-brand .brand-icon{
  background:var(--accent);
  color:var(--primary);
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  max-width:300px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:110px;
  margin-bottom:18px;
}
.footer-col a{
  display:block;
  color:rgba(245,244,239,0.65);
  font-size:14px;
  padding:5px 0;
  transition:color 0.2s,padding-left 0.2s;
}
.footer-col a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-col p{
  font-size:14px;
  line-height:1.8;
  color:rgba(245,244,239,0.6);
  margin-bottom:6px;
}
.footer-bottom{
  border-top:1px solid rgba(245,244,239,0.12);
  padding-top:24px;
  text-align:center;
  font-size:13px;
  color:rgba(245,244,239,0.5);
}
/*=========== Responsive ===========*/
@media (max-width:1024px){
  .hero{padding:72px 0;}
  .hero h1{font-size:34px;}
  .brand-grid{gap:40px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .mega-links{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .site-header{position:sticky;}
  .header-inner{height:64px;}
  .nav-toggle{display:block;}
  .nav-wrap{gap:12px;}
  .nav-menu{
    position:fixed;
    top:64px;
    left:0;
    right:0;
    background:var(--bg);
    flex-direction:column;
    align-items:stretch;
    padding:16px;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);
    transform:translateY(-120%);
    opacity:0;
    transition:transform 0.3s ease,opacity 0.3s ease;
    z-index:99;
  }
  .nav-menu.open{
    transform:translateY(0);
    opacity:1;
  }
  .nav-link{padding:12px;font-size:16px;}
  .nav-link::after{display:none;}
  .hero{padding:56px 0;}
  .hero-inner{flex-direction:column;gap:40px;}
  .hero h1{font-size:30px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .hero-meta{flex-wrap:wrap;gap:12px;}
  .hero-accent{left:0;bottom:-8px;}
  .brand-section{padding:56px 0;}
  .brand-grid{flex-direction:column;gap:32px;}
  .brand-card{min-height:260px;}
  .brand-info h2{font-size:26px;}
  .stat-grid{gap:20px;flex-wrap:wrap;}
  .featured-section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .news-section{padding:56px 0;}
  .news-row{flex-direction:column;padding:16px;}
  .news-thumb{width:100%;flex:0 0 auto;height:100px;}
  .trust-section{padding:56px 0;}
  .trust-grid{grid-template-columns:1fr;}
  .faq-section{padding:56px 0;}
  .cta-section{padding:56px 0;}
  .cta-box{padding:40px 24px;}
  .cta-form{flex-direction:column;}
  .cta-form input{width:100%;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:48px 0 24px;}
}

/* roulang page: category1 */
:root{
  --primary:#1E2A24;
  --primary-dark:#18211C;
  --accent:#8F6A3C;
  --lime:#C8F04B;
  --lime-dark:#B7E83B;
  --bg:#F5F4EF;
  --bg-alt:#EEF0E6;
  --text:#2A2D2A;
  --text-sub:#6E7370;
  --border:rgba(30,42,36,0.08);
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 2px 8px rgba(24,33,28,0.06);
  --shadow-hover:0 8px 20px rgba(24,33,28,0.12);
  --transition:0.2s ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
@media screen and (max-width:640px){.container{padding:0 16px}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;
  font-size:15px;line-height:1.3;border:2px solid transparent;
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#2a3d34;color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:rgba(30,42,36,.05)}
.btn-lime{background:var(--lime);color:var(--primary);border-color:var(--lime)}
.btn-lime:hover{background:var(--lime-dark);color:var(--primary);transform:translateY(-1px)}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(245,244,239,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease;
}
.site-header.scrolled{border-bottom:1px solid var(--border)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--primary);white-space:nowrap}
.brand-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--primary);color:var(--lime);
  font-size:15px;font-weight:800;letter-spacing:-1px;
}
.brand:hover{color:var(--primary)}
.nav-wrap{display:flex;align-items:center;gap:24px}
.nav-menu{list-style:none;display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{
  display:inline-block;padding:10px 16px;font-size:15px;font-weight:500;
  color:var(--text);border-radius:6px;position:relative;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:0;height:2px;background:var(--lime);border-radius:2px;transition:width .25s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:24px}
.nav-item.active .nav-link{color:var(--primary);font-weight:600}
.nav-item.active .nav-link::after{width:24px}
.nav-toggle{
  display:none;background:none;border:none;font-size:26px;cursor:pointer;
  color:var(--primary);line-height:1;padding:4px 8px;border-radius:6px;
}
.nav-toggle:focus-visible{outline:2px solid var(--lime);outline-offset:2px}

/* Mega Panel */
.mega-panel{
  position:absolute;left:0;right:0;top:72px;
  background:var(--bg);border-radius:0 0 var(--radius) var(--radius);
  box-shadow:0 12px 32px rgba(24,33,28,0.12);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:all .2s ease;z-index:99;
}
.site-header:hover .mega-panel,
.mega-panel:hover{opacity:1;visibility:visible;transform:translateY(0)}
.mega-inner{max-width:var(--container);margin:0 auto;padding:28px 32px}
.mega-links{display:grid;gap:12px}
.mega-link{
  display:flex;align-items:center;gap:14px;padding:14px 16px;
  border-radius:var(--radius-sm);background:transparent;transition:background .2s ease;
}
.mega-link:hover{background:var(--bg-alt)}
.mega-icon{
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  width:42px;height:42px;border-radius:10px;background:var(--primary);color:var(--lime);font-size:18px;
}
.mega-text strong{display:block;font-size:15px;color:var(--primary)}
.mega-text small{font-size:13px;color:var(--text-sub)}
.mega-feature{
  display:flex;gap:16px;padding:14px 16px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:#fff;transition:box-shadow .2s ease;
}
.mega-feature:hover{box-shadow:var(--shadow)}
.mega-feature img{width:140px;height:88px;object-fit:cover;border-radius:8px;flex-shrink:0}
.mega-feature strong{display:block;font-size:15px;color:var(--primary);margin-bottom:2px}
.mega-feature small{font-size:13px;color:var(--text-sub);line-height:1.5}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;padding:100px 0 110px;
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(24,33,28,.88) 0%,rgba(24,33,28,.55) 50%,rgba(24,33,28,.3) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-block;padding:6px 16px;border-radius:999px;
  background:rgba(200,240,75,.16);border:1px solid rgba(200,240,75,.4);
  color:var(--lime);font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:20px;
}
.page-hero h1{
  font-size:42px;line-height:1.25;font-weight:700;max-width:720px;margin-bottom:18px;
  color:#fff;
}
.hero-sub{font-size:17px;line-height:1.7;max-width:560px;color:rgba(245,244,239,.88);margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-actions .btn-primary{background:var(--lime);color:var(--primary);border-color:var(--lime)}
.hero-actions .btn-primary:hover{background:var(--lime-dark)}
.hero-actions .btn-outline{border-color:rgba(245,244,239,.7);color:#fff}
.hero-actions .btn-outline:hover{background:rgba(255,255,255,.08);color:#fff;border-color:#fff}
.hero-meta{
  display:flex;gap:28px;margin-top:44px;padding-top:28px;
  border-top:1px solid rgba(245,244,239,.18);flex-wrap:wrap;
}
.hero-meta-item strong{display:block;font-size:26px;font-weight:700;color:var(--lime)}
.hero-meta-item span{font-size:13px;color:rgba(245,244,239,.75)}

/* ============ 区块通用 ============ */
.section{padding:88px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 52px}
.section-tag{
  display:inline-block;padding:5px 16px;border-radius:999px;
  background:rgba(30,42,36,.06);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:16px;
}
.section-head h2{font-size:32px;line-height:1.35;font-weight:700;color:var(--primary);margin-bottom:12px}
.section-head p{font-size:16px;color:var(--text-sub);line-height:1.6}

/* ============ 特性条 ============ */
.feature-strip{background:#fff;border-bottom:1px solid var(--border)}
.feature-strip .grid-x{display:flex;flex-wrap:wrap}
.feature-cell{padding:28px 20px}
.feature-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:12px;background:var(--primary);color:var(--lime);
  font-size:20px;margin-bottom:16px;
}
.feature-cell h3{font-size:17px;font-weight:600;color:var(--primary);margin-bottom:8px}
.feature-cell p{font-size:14px;color:var(--text-sub);line-height:1.6}

/* ============ 分类内容卡片 ============ */
.category-content{background:var(--bg)}
.category-grid .cell{margin-bottom:32px}
.content-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);height:100%;
  display:flex;flex-direction:column;transition:box-shadow .25s ease,transform .25s ease;
}
.content-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.content-card figure{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg-alt)}
.content-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.content-card:hover figure img{transform:scale(1.04)}
.card-body{padding:28px 28px 24px;display:flex;flex-direction:column;flex:1}
.badge-row{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.badge{
  display:inline-block;padding:5px 14px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.4;
  background:rgba(30,42,36,.08);color:var(--primary);
}
.badge-hot{background:var(--primary);color:var(--lime)}
.card-body h3{font-size:19px;font-weight:600;color:var(--primary);line-height:1.45;margin-bottom:10px}
.card-body p{font-size:14px;color:var(--text-sub);line-height:1.65;flex:1}
.card-meta{
  display:flex;justify-content:space-between;align-items:center;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--border);
  font-size:13px;color:var(--text-sub);
}
.card-link{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:4px}
.card-link:hover{color:var(--accent)}
.card-link .arrow{transition:transform .2s ease}
.card-link:hover .arrow{transform:translateX(4px)}

/* ============ 适用场景 ============ */
.scene-section{background:var(--bg-alt)}
.scene-grid .cell{margin-bottom:24px}
.scene-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:32px 28px;height:100%;text-align:center;transition:box-shadow .2s ease;
}
.scene-card:hover{box-shadow:var(--shadow-hover)}
.scene-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:50%;
  background:var(--primary);color:var(--lime);font-size:18px;font-weight:700;
  margin-bottom:18px;
}
.scene-card h3{font-size:18px;font-weight:600;color:var(--primary);margin-bottom:10px}
.scene-card p{font-size:14px;color:var(--text-sub);line-height:1.65}

/* ============ 内容流程 ============ */
.process-section{background:#fff}
.process-grid .cell{position:relative;margin-bottom:32px}
.process-card{text-align:center;padding:32px 20px}
.process-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:64px;height:64px;border-radius:50%;
  background:rgba(30,42,36,.05);color:var(--primary);font-size:16px;font-weight:700;
  margin-bottom:18px;border:2px dashed rgba(30,42,36,.2);
}
.process-card:nth-child(2n) .process-step{background:rgba(143,106,60,.1);color:var(--accent);border-color:rgba(143,106,60,.3)}
.process-card h3{font-size:17px;font-weight:600;color:var(--primary);margin-bottom:10px}
.process-card p{font-size:14px;color:var(--text-sub);line-height:1.6;max-width:240px;margin:0 auto}

/* ============ FAQ ============ */
.faq-section{background:var(--bg)}
.faq-list{max-width:760px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  margin-bottom:14px;overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;
  padding:22px 26px;font-size:16px;font-weight:600;color:var(--primary);
  transition:background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--bg-alt)}
.faq-item summary .icon{
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  width:26px;height:26px;border-radius:50%;background:rgba(30,42,36,.06);
  color:var(--primary);font-size:16px;transition:transform .25s ease;
}
.faq-item[open] summary .icon{transform:rotate(45deg)}
.faq-answer{padding:0 26px 22px;font-size:15px;color:var(--text-sub);line-height:1.75}

/* ============ CTA ============ */
.cta-section{
  background:var(--lime);padding:84px 0;
}
.cta-inner{max-width:760px;margin:0 auto;text-align:center}
.cta-section h2{font-size:32px;font-weight:700;color:var(--primary);margin-bottom:14px}
.cta-section p{font-size:16px;color:var(--primary);opacity:.85;margin-bottom:30px}
.cta-form{display:flex;gap:12px;max-width:520px;margin:0 auto}
.cta-form input{
  flex:1;height:48px;padding:0 18px;border-radius:var(--radius-sm);
  border:2px solid rgba(30,42,36,.25);background:#fff;
  font-size:15px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,42,36,.12)}
.cta-form .btn{background:var(--primary);color:#fff;border-color:var(--primary);height:48px}
.cta-form .btn:hover{background:var(--primary-dark)}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:rgba(245,244,239,.82);padding:64px 0 0}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer .brand-icon{background:var(--lime);color:var(--primary)}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;
  padding-bottom:44px;
}
.footer-brand p{font-size:14px;line-height:1.7;color:rgba(245,244,239,.65);max-width:260px;margin-top:16px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col a{
  display:block;font-size:14px;color:rgba(245,244,239,.7);
  padding:4px 0;transition:color .2s ease,padding-left .2s ease;
}
.footer-col a:hover{color:var(--lime);padding-left:4px}
.footer-col p{font-size:14px;color:rgba(245,244,239,.6);line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(245,244,239,.1);padding:20px 0;text-align:center;
  font-size:13px;color:rgba(245,244,239,.45);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .page-hero{padding:80px 0}
  .page-hero h1{font-size:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:640px){
  .site-header .nav-wrap{gap:10px}
  .nav-toggle{display:block}
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    background:var(--bg);flex-direction:column;align-items:stretch;
    padding:24px 16px;gap:8px;overflow-y:auto;
    transform:translateX(100%);transition:transform .25s ease;
    box-shadow:0 20px 40px rgba(24,33,28,.2);
  }
  .nav-menu.open{transform:translateX(0)}
  .nav-item{width:100%}
  .nav-link{display:block;padding:14px 16px;font-size:16px}
  .nav-link::after{display:none}
  .btn-primary{margin-right:0}
  .header-inner .btn-primary{display:none}
  .nav-wrap .btn-primary{display:none}
  .mega-panel{display:none}
  .page-hero{padding:64px 0}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:20px}
  .section{padding:60px 0}
  .section-head h2{font-size:26px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand p{max-width:100%}
}

/* roulang page: article */
/* ========== 设计变量 ========== */
:root{
  --primary:#1E2A24;
  --primary-2:#18211C;
  --accent:#C8F04B;
  --accent-2:#B7E83B;
  --bronze:#8F6A3C;
  --bg:#F5F4EF;
  --bg-soft:#EEF0E6;
  --text:#2A2D2A;
  --text-muted:#6E7370;
  --border:rgba(30,42,36,.08);
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 2px 8px rgba(24,33,28,.06);
  --shadow-hover:0 8px 20px rgba(24,33,28,.12);
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

/* ========== Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{max-width:1200px;margin:0 auto;padding:0 32px}
@media screen and (max-width:640px){.container{padding:0 16px}}

/* ========== 通用组件 ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 24px;border-radius:var(--radius-sm);
  font-weight:600;font-size:15px;line-height:1.2;
  cursor:pointer;border:1px solid transparent;
  transition:all .2s ease-out;
}
.btn:active{transform:scale(.98)}
.btn-primary{
  background:var(--primary);color:#F5F4EF;
}
.btn-primary:hover{
  background:#2A3A32;color:#fff;
  transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(30,42,36,.18);
}
.btn-accent{
  background:var(--accent);color:var(--primary);
}
.btn-accent:hover{
  background:var(--accent-2);color:var(--primary);
  transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(200,240,75,.25);
}
.btn-outline{
  background:transparent;border-color:rgba(245,244,239,.5);color:#F5F4EF;
}
.btn-outline:hover{
  border-color:var(--accent);color:var(--accent);
  background:rgba(200,240,75,.08);
}
.btn-dark{
  background:var(--primary-2);color:#F5F4EF;border-color:var(--primary-2);
}
.btn-dark:hover{
  background:#24332B;transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(0,0,0,.2);
}

.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-green{background:rgba(200,240,75,.18);color:var(--primary)}
.badge-bronze{background:var(--bronze);color:#fff}
.badge-line{background:transparent;border:1px solid rgba(30,42,36,.2);color:var(--text-muted)}

/* ========== Header / 导航 ========== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(245,244,239,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.scrolled{
  border-bottom-color:var(--border);
  box-shadow:0 2px 12px rgba(24,33,28,.06);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;font-size:20px;color:var(--primary);
  white-space:nowrap;
}
.brand-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  background:var(--primary);color:var(--accent);
  font-size:18px;font-weight:800;letter-spacing:-1px;
  flex-shrink:0;
}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
}
.nav-wrap nav{display:block}
.nav-menu{display:flex;gap:8px;align-items:center}
.nav-item{position:relative}
.nav-link{
  position:relative;
  display:inline-block;padding:10px 14px;
  font-size:15px;font-weight:500;color:var(--text);
  border-radius:6px;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:2px;border-radius:2px;
  background:var(--accent-2);
  transform:translateX(-50%);
  transition:width .2s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:60%}
.nav-item.active .nav-link{color:var(--primary);font-weight:600}
.nav-item.active .nav-link::after{width:60%}
.nav-toggle{
  display:none;width:42px;height:42px;
  border:1px solid var(--border);border-radius:8px;
  background:#fff;font-size:20px;cursor:pointer;
  align-items:center;justify-content:center;
  color:var(--primary);transition:all .2s ease;
}
.nav-toggle:hover{background:var(--bg-soft)}
.nav-toggle.active{transform:rotate(90deg)}

/* Mega 面板 */
.mega-panel{
  position:absolute;left:0;right:0;top:72px;
  background:var(--bg);border-radius:0 0 var(--radius) var(--radius);
  box-shadow:var(--shadow-hover);
  border:1px solid var(--border);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:all .25s ease-out;
  padding:28px 0;
  z-index:99;
}
.mega-panel.show{
  opacity:1;visibility:visible;transform:translateY(0);
}
.mega-inner{max-width:1200px;margin:0 auto;padding:0 32px}
.mega-links{display:flex;flex-direction:column;gap:12px}
.mega-link{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;border-radius:10px;
  background:#fff;border:1px solid var(--border);
  transition:all .2s ease;
}
.mega-link:hover{
  background:var(--bg-soft);border-color:rgba(30,42,36,.14);
  transform:translateX(4px);
}
.mega-icon{
  width:44px;height:44px;border-radius:10px;
  background:rgba(200,240,75,.2);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:20px;
  flex-shrink:0;
}
.mega-text{display:flex;flex-direction:column}
.mega-text strong{font-size:15px;color:var(--primary)}
.mega-text small{font-size:13px;color:var(--text-muted)}
.mega-feature{
  display:flex;flex-direction:column;gap:10px;
  border-radius:var(--radius);overflow:hidden;
  background:#fff;border:1px solid var(--border);
  transition:all .2s ease;
}
.mega-feature img{width:100%;height:140px;object-fit:cover}
.mega-feature span{
  display:flex;flex-direction:column;padding:14px 16px;gap:4px;
}
.mega-feature strong{font-size:15px;color:var(--primary)}
.mega-feature small{font-size:13px;color:var(--text-muted)}
.mega-feature:hover{
  box-shadow:var(--shadow-hover);transform:translateY(-2px);
}

/* ========== 文章主体 ========== */
.post-main{
  padding:48px 0 80px;
  min-height:60vh;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;
  font-size:13px;color:var(--text-muted);
  margin-bottom:8px;gap:8px;
}
.breadcrumb a{color:var(--text-muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(30,42,36,.35)}
.breadcrumb .current{color:var(--primary);font-weight:500}
.post-box{
  max-width:100%;
}
.post-article{
  max-width:720px;margin:0 auto;
}
.post-title{
  font-size:36px;line-height:1.35;font-weight:700;
  color:var(--primary);margin:16px 0 24px;
  letter-spacing:-.01em;
}
.post-meta{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:16px;margin-bottom:40px;
  padding-bottom:24px;
  border-bottom:1px solid var(--border);
}
.meta-item{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--text-muted);
}
.meta-item i{color:var(--bronze);font-size:13px}
.post-content{
  font-size:17px;line-height:1.8;color:var(--text);
}
.post-content p{
  margin-bottom:24px;color:var(--text);
}
.post-content > p,
.post-content p{text-indent:2em}
.post-content h3{
  font-size:22px;font-weight:700;color:var(--primary);
  margin:40px 0 16px;line-height:1.4;
}
.post-content h4{
  font-size:18px;font-weight:600;color:var(--primary);
  margin:32px 0 12px;line-height:1.5;
}
.post-content img{
  width:100%;border-radius:var(--radius);
  margin:28px 0;object-fit:cover;
}
.post-content ul{
  list-style:disc;padding-left:1.6em;margin:20px 0;color:var(--text);
}
.post-content ol{
  list-style:decimal;padding-left:1.6em;margin:20px 0;color:var(--text);
}
.post-content li{margin-bottom:8px}
.post-content blockquote{
  border-left:4px solid var(--accent);
  background:var(--bg-soft);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:20px 24px;margin:28px 0;
  color:var(--text);font-style:normal;
}
.post-content blockquote p{text-indent:0;margin-bottom:0}
.post-content a{
  color:var(--primary);border-bottom:1px solid rgba(30,42,36,.3);
  transition:all .2s ease;
}
.post-content a:hover{border-color:var(--accent-2);color:var(--primary)}
.post-content table{
  width:100%;border-collapse:collapse;margin:28px 0;
  background:#fff;border-radius:8px;overflow:hidden;
}
.post-content table th,
.post-content table td{
  border:1px solid var(--border);padding:12px 16px;
  text-align:left;font-size:15px;
}
.post-content table th{
  background:var(--primary);color:#F5F4EF;font-weight:600;
}
.post-tags{
  margin-top:40px;display:flex;flex-wrap:wrap;gap:10px;
  padding-top:24px;border-top:1px solid var(--border);
}
.post-tags .badge{
  background:var(--bg-soft);color:var(--primary);
  border:1px solid transparent;
}
.post-tags .badge:hover{
  background:var(--accent);border-color:var(--accent);
}

/* 上一篇 / 下一篇 */
.post-nav{
  max-width:720px;margin:56px auto 0;
  display:flex;gap:16px;
}
.post-nav-link{
  flex:1;display:flex;align-items:center;gap:12px;
  padding:20px 24px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--border);
  transition:all .2s ease;
}
.post-nav-link:hover{
  box-shadow:var(--shadow-hover);transform:translateY(-2px);
  border-color:rgba(30,42,36,.18);
}
.post-nav-link span{
  display:flex;flex-direction:column;
  font-size:13px;color:var(--text-muted);
  line-height:1.5;
}
.post-nav-link strong{
  font-size:15px;color:var(--primary);margin-top:4px;
}
.post-nav-link.post-nav-next{
  flex-direction:row-reverse;text-align:right;
}
.nav-arrow{
  width:38px;height:38px;border-radius:8px;
  background:var(--bg-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;flex-shrink:0;
}

/* 相关推荐 */
.related-section{
  max-width:1200px;margin:72px auto 0;
}
.related-section .section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-bottom:24px;
}
.related-section h2{
  font-size:28px;font-weight:700;color:var(--primary);
}
.related-section .section-desc{
  font-size:14px;color:var(--text-muted);
}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.related-card{
  background:#fff;border-radius:var(--radius);
  border:1px solid var(--border);
  overflow:hidden;
  transition:all .25s ease;
}
.related-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.related-img{
  display:block;overflow:hidden;aspect-ratio:16/10;
  background:var(--bg-soft);
}
.related-img img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.related-card:hover .related-img img{transform:scale(1.04)}
.related-body{padding:20px 20px 24px}
.related-body .badge{margin-bottom:12px}
.related-body h3{
  font-size:17px;line-height:1.5;font-weight:600;
  color:var(--primary);margin-bottom:10px;
}
.related-body h3 a{color:inherit}
.related-body h3 a:hover{color:var(--primary)}
.related-body p{
  font-size:14px;color:var(--text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;margin-bottom:16px;
}
.card-link{
  font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:4px;
  transition:gap .2s ease;
}
.card-link:hover{gap:8px}
.related-card:first-child .badge{background:rgba(200,240,75,.18);color:var(--primary)}
.related-card:nth-child(2) .badge{background:rgba(143,106,60,.12);color:var(--bronze)}
.related-card:nth-child(3) .badge{background:var(--bg-soft);color:var(--primary)}

/* 空态 */
.post-empty{
  max-width:720px;margin:80px auto;
  text-align:center;padding:64px 32px;
  background:#fff;border-radius:var(--radius);
  border:1px solid var(--border);
}
.post-empty .empty-icon{
  font-size:42px;display:block;margin-bottom:16px;
}
.post-empty p{
  font-size:20px;font-weight:600;color:var(--primary);
  margin-bottom:8px;
}
.post-empty .btn{margin-top:20px}

/* ========== 页脚 ========== */
.site-footer{
  background:var(--primary-2);color:rgba(245,244,239,.85);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:48px;
}
.footer-brand .brand{color:#F5F4EF}
.footer-brand .brand-icon{background:var(--accent);color:var(--primary)}
.footer-brand p{
  font-size:14px;line-height:1.8;color:rgba(245,244,239,.65);
  margin-top:16px;max-width:280px;
}
.footer-col h4{
  font-size:14px;font-weight:600;color:#F5F4EF;
  margin-bottom:18px;letter-spacing:.02em;
}
.footer-col a{
  display:block;font-size:14px;color:rgba(245,244,239,.65);
  padding:6px 0;transition:all .2s ease;
}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-col p{
  font-size:14px;color:rgba(245,244,239,.65);
  line-height:1.8;padding:4px 0;
}
.footer-bottom{
  border-top:1px solid rgba(245,244,239,.12);
  padding:20px 0;text-align:center;
}
.footer-bottom p{
  font-size:13px;color:rgba(245,244,239,.5);
}

/* ========== 响应式 ========== */
@media screen and (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .mega-inner{padding:0 24px}
}
@media screen and (max-width:640px){
  .nav-wrap nav{
    display:none;position:absolute;top:72px;left:0;right:0;
    background:var(--bg);border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-hover);
    padding:12px 16px;border-radius:0 0 var(--radius) var(--radius);
    z-index:98;
  }
  .nav-wrap nav.open{display:block}
  .nav-menu{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{padding:14px 12px;width:100%}
  .nav-link::after{display:none}
  .nav-toggle{display:inline-flex}
  .site-header .btn-primary{
    padding:10px 16px;font-size:14px;white-space:nowrap;
  }
  .mega-panel{display:none}
  .post-main{padding:32px 0 56px}
  .post-title{font-size:30px;line-height:1.4}
  .post-meta{gap:12px;margin-bottom:28px}
  .post-content{font-size:16px}
  .post-content p{margin-bottom:20px}
  .post-nav{flex-direction:column}
  .post-nav-link{padding:16px 18px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom p{font-size:12px}
  .related-section .section-head{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category2 */
:root {
      --color-primary: #1E2A24;
      --color-primary-dark: #18211C;
      --color-primary-deep: #141C17;
      --color-accent: #8F6A3C;
      --color-lime: #C8F04B;
      --color-lime-light: #E2F6A1;
      --color-bg: #F5F4EF;
      --color-surface: #FFFFFF;
      --color-text: #2A2D2A;
      --color-text-secondary: #6E7370;
      --color-border: rgba(30, 42, 36, 0.08);
      --color-border-strong: rgba(30, 42, 36, 0.16);
      --color-line: #E4E3DC;
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-badge: 999px;
      --shadow-card: 0 2px 8px rgba(24, 33, 28, 0.06);
      --shadow-card-hover: 0 8px 20px rgba(24, 33, 28, 0.12);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", "Roboto", -apple-system, BlinkMacSystemFont, sans-serif;
      --transition: 0.2s ease-out;
      --header-height: 72px;
      --section-gap: 72px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.65;
      color: var(--color-text);
      background-color: var(--color-bg);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    img {
      max-width: 100%;
      display: block;
      border-radius: var(--radius-card);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition);
    }

    a:hover {
      color: var(--color-primary);
    }

    ul,
    ol {
      list-style: none;
    }

    h1,
    h2,
    h3,
    h4,
    h5 {
      font-weight: 600;
      color: var(--color-primary);
      line-height: 1.35;
    }

    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 32px;
      padding-right: 32px;
    }

    .section {
      padding: var(--section-gap) 0;
    }

    .section-head {
      margin-bottom: 40px;
      text-align: center;
    }

    .section-title {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 10px;
      letter-spacing: 0.5px;
    }

    .section-sub {
      font-size: 15px;
      color: var(--color-text-secondary);
      max-width: 560px;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 44px;
      padding: 0 24px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition), color var(--transition);
      white-space: nowrap;
      user-select: none;
    }

    .btn:focus-visible {
      outline: 2px solid var(--color-lime);
      outline-offset: 2px;
    }

    .btn:active {
      transform: scale(0.98);
    }

    .btn-primary {
      background: var(--color-lime);
      color: var(--color-primary-dark);
      box-shadow: 0 4px 12px rgba(200, 240, 75, 0.25);
    }

    .btn-primary:hover {
      background: #D4F25F;
      color: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(200, 240, 75, 0.35);
    }

    .btn-outline {
      background: transparent;
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    .btn-outline:hover {
      border-color: var(--color-primary);
      background: rgba(30, 42, 36, 0.04);
      color: var(--color-primary);
      transform: translateY(-2px);
    }

    .btn-dark {
      background: var(--color-primary);
      color: #fff;
    }

    .btn-dark:hover {
      background: var(--color-primary-dark);
      color: #fff;
      transform: translateY(-2px);
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(245, 244, 239, 0.92);
      -webkit-backdrop-filter: blur(12px);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid transparent;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .site-header.is-stuck {
      border-bottom-color: var(--color-border);
      box-shadow: 0 4px 16px rgba(24, 33, 28, 0.06);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      height: var(--header-height);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--color-primary);
      letter-spacing: 0.3px;
      flex-shrink: 0;
    }

    .brand-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--color-primary);
      color: var(--color-lime);
      font-size: 18px;
      font-weight: 800;
      letter-spacing: -0.5px;
    }

    .brand:hover {
      color: var(--color-primary);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 4px;
      margin: 0;
    }

    .nav-item {
      position: relative;
    }

    .nav-link {
      display: inline-block;
      padding: 10px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--color-text);
      border-radius: 6px;
      position: relative;
      transition: color 0.2s;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 2px;
      width: 0;
      height: 2px;
      background: var(--color-lime);
      border-radius: 2px;
      transform: translateX(-50%);
      transition: width 0.25s ease-out;
    }

    .nav-link:hover {
      color: var(--color-primary);
    }

    .nav-link:hover::after {
      width: 60%;
    }

    .nav-item.active .nav-link {
      color: var(--color-primary);
      font-weight: 600;
    }

    .nav-item.active .nav-link::after {
      width: 60%;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--color-border-strong);
      border-radius: 8px;
      background: transparent;
      font-size: 22px;
      line-height: 1;
      color: var(--color-primary);
      cursor: pointer;
      transition: background-color 0.2s;
    }

    .nav-toggle:hover {
      background: rgba(30, 42, 36, 0.05);
    }

    /* Mega Panel */
    .mega-panel {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      z-index: 999;
      background: var(--color-bg);
      border-bottom: 1px solid var(--color-border);
      box-shadow: 0 16px 32px rgba(24, 33, 28, 0.1);
    }

    .mega-panel.open {
      display: block;
      animation: megaSlide 0.22s ease-out;
    }

    @keyframes megaSlide {
      from {
        opacity: 0;
        transform: translateY(-6px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .mega-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 28px 32px;
    }

    .mega-links {
      display: grid;
      grid-template-columns: repeat(1, 1fr);
      gap: 12px;
    }

    .mega-link {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 14px 16px;
      border-radius: 10px;
      transition: background-color 0.2s;
    }

    .mega-link:hover {
      background: rgba(30, 42, 36, 0.04);
    }

    .mega-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: rgba(30, 42, 36, 0.06);
      font-size: 20px;
      flex-shrink: 0;
    }

    .mega-text strong {
      display: block;
      font-size: 15px;
      color: var(--color-primary);
      margin-bottom: 2px;
    }

    .mega-text small {
      font-size: 13px;
      color: var(--color-text-secondary);
      line-height: 1.4;
    }

    .mega-feature {
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding: 16px;
      border-radius: 12px;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      transition: box-shadow var(--transition), transform var(--transition);
    }

    .mega-feature:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-2px);
      color: var(--color-primary);
    }

    .mega-feature img {
      width: 100%;
      height: 140px;
      object-fit: cover;
    }

    .mega-feature strong {
      display: block;
      font-size: 15px;
      color: var(--color-primary);
      margin-bottom: 4px;
    }

    .mega-feature small {
      font-size: 13px;
      color: var(--color-text-secondary);
      line-height: 1.5;
    }

    /* ===== Category Hero ===== */
    .cat-hero {
      position: relative;
      background-color: var(--color-primary-dark);
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      padding: 100px 0 88px;
      color: #fff;
    }

    .cat-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(24, 33, 28, 0.92) 0%, rgba(24, 33, 28, 0.6) 60%, rgba(24, 33, 28, 0.35) 100%);
    }

    .cat-hero-content {
      position: relative;
      z-index: 1;
      max-width: 720px;
    }

    .cat-hero h1 {
      font-size: 42px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: 1px;
      line-height: 1.3;
    }

    .cat-hero .hero-divider {
      width: 56px;
      height: 4px;
      background: var(--color-lime);
      border-radius: 4px;
      margin-bottom: 20px;
    }

    .cat-hero p {
      font-size: 17px;
      line-height: 1.7;
      color: rgba(255, 255, 255, 0.9);
      max-width: 580px;
      margin-bottom: 12px;
    }

    /* ===== Topic List ===== */
    .topic-list-section {
      padding: var(--section-gap) 0;
      background: var(--color-bg);
    }

    .topic-list {
      max-width: 920px;
      margin: 0 auto;
      background: var(--color-surface);
      border-radius: 14px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }

    .topic-row {
      display: flex;
      align-items: center;
      gap: 24px;
      padding: 20px 28px;
      border-bottom: 1px solid var(--color-line);
      transition: background-color 0.2s;
    }

    .topic-row:last-child {
      border-bottom: none;
    }

    .topic-row:hover {
      background: #F1F2EC;
    }

    .topic-date {
      flex-shrink: 0;
      width: 70px;
      font-size: 13px;
      font-weight: 600;
      color: var(--color-text-secondary);
      letter-spacing: 0.5px;
      text-align: center;
    }

    .topic-date .date-day {
      display: block;
      font-size: 22px;
      font-weight: 700;
      color: var(--color-primary);
      line-height: 1.2;
    }

    .topic-main {
      flex: 1;
      min-width: 0;
    }

    .topic-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-primary);
      transition: color 0.2s;
      line-height: 1.5;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .topic-row:hover .topic-title {
      color: #3D7A5A;
    }

    .topic-desc {
      font-size: 14px;
      color: var(--color-text-secondary);
      margin-top: 4px;
      line-height: 1.5;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .topic-arrow {
      flex-shrink: 0;
      font-size: 18px;
      color: var(--color-text-secondary);
      transition: transform 0.2s, color 0.2s;
    }

    .topic-row:hover .topic-arrow {
      transform: translateX(4px);
      color: var(--color-primary);
    }

    /* ===== Community Features ===== */
    .community-features {
      padding: var(--section-gap) 0;
      background: var(--color-surface);
    }

    .feature-card {
      padding: 28px 24px;
      border-radius: var(--radius-card);
      border: 1px solid var(--color-border);
      background: var(--color-bg);
      box-shadow: var(--shadow-card);
      height: 100%;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }

    .feature-card .feature-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--color-primary);
      color: var(--color-lime);
      font-size: 20px;
      margin-bottom: 18px;
    }

    .feature-card h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.65;
    }

    /* ===== Flow ===== */
    .community-flow {
      padding: var(--section-gap) 0;
      background: var(--color-bg);
    }

    .step-card {
      text-align: center;
      padding: 36px 24px;
      border-radius: var(--radius-card);
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      height: 100%;
    }

    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--color-primary);
      color: var(--color-lime);
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .step-card h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 10px;
    }

    .step-card p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.65;
      max-width: 240px;
      margin: 0 auto;
    }

    /* ===== Topic Tags ===== */
    .topic-tags-section {
      padding: var(--section-gap) 0;
      background: var(--color-primary);
      color: #fff;
    }

    .topic-tags-section .section-title {
      color: #fff;
    }

    .topic-tags-section .section-sub {
      color: rgba(255, 255, 255, 0.75);
    }

    .tag-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 14px;
      max-width: 800px;
      margin: 0 auto;
    }

    .tag-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 22px;
      border-radius: var(--radius-badge);
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.12);
      font-size: 15px;
      font-weight: 500;
      color: #fff;
      transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
    }

    .tag-item:hover {
      background: rgba(255, 255, 255, 0.14);
      border-color: var(--color-lime);
      transform: translateY(-2px);
      color: var(--color-lime);
    }

    .tag-item i {
      font-size: 16px;
      opacity: 0.85;
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: var(--section-gap) 0;
      background: var(--color-surface);
    }

    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: 10px;
      background: var(--color-bg);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
    }

    .faq-item.open {
      border-color: var(--color-border-strong);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-primary);
      background: transparent;
      border: none;
      cursor: pointer;
      text-align: left;
      transition: background-color 0.2s;
    }

    .faq-question:hover {
      background: #EEF0E6;
    }

    .faq-icon {
      flex-shrink: 0;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--color-primary);
      color: var(--color-lime);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      transition: transform 0.3s;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }

    .faq-answer-inner {
      padding: 0 22px 20px;
      font-size: 15px;
      color: var(--color-text);
      line-height: 1.7;
      background: #EEF0E6;
      border-radius: 0 0 10px 10px;
    }

    .faq-answer-inner p {
      padding-top: 4px;
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 0 0 var(--section-gap);
      background: var(--color-surface);
    }

    .cta-box {
      background: var(--color-lime);
      border-radius: 16px;
      padding: 56px 48px;
      text-align: center;
      color: var(--color-primary-dark);
      box-shadow: 0 12px 32px rgba(200, 240, 75, 0.25);
    }

    .cta-box h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 12px;
    }

    .cta-box p {
      font-size: 15px;
      color: rgba(24, 33, 28, 0.75);
      max-width: 520px;
      margin: 0 auto 28px;
      line-height: 1.7;
    }

    .cta-form {
      display: flex;
      max-width: 480px;
      margin: 0 auto;
      gap: 10px;
    }

    .cta-form input {
      flex: 1;
      height: 48px;
      padding: 0 18px;
      border-radius: var(--radius-btn);
      border: 1px solid rgba(30, 42, 36, 0.2);
      font-size: 15px;
      background: #fff;
      color: var(--color-text);
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .cta-form input:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(30, 42, 36, 0.12);
    }

    .cta-form .btn {
      height: 48px;
      flex-shrink: 0;
      background: var(--color-primary);
      color: #fff;
    }

    .cta-form .btn:hover {
      background: var(--color-primary-dark);
      transform: translateY(-2px);
    }

    /* ===== Back Home ===== */
    .back-home {
      padding: 24px 0 56px;
      text-align: center;
      background: var(--color-surface);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--color-primary-dark);
      color: rgba(245, 244, 239, 0.85);
      padding: 56px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
    }

    .footer-brand .brand {
      color: #fff;
      margin-bottom: 16px;
      display: inline-flex;
    }

    .footer-brand .brand-icon {
      background: var(--color-lime);
      color: var(--color-primary-dark);
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      color: rgba(245, 244, 239, 0.65);
      max-width: 280px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
    }

    .footer-col a {
      display: block;
      font-size: 14px;
      color: rgba(245, 244, 239, 0.7);
      padding: 5px 0;
      transition: color 0.2s;
    }

    .footer-col a:hover {
      color: var(--color-lime);
    }

    .footer-col p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(245, 244, 239, 0.7);
      margin-bottom: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
      text-align: center;
    }

    .footer-bottom p {
      font-size: 13px;
      color: rgba(245, 244, 239, 0.45);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .header-inner {
        height: 64px;
      }

      .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .nav-wrap nav {
        display: none;
      }

      .nav-wrap .btn-primary {
        display: none;
      }

      .nav-menu.show {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 12px 16px;
        gap: 6px;
      }

      .nav-menu.show .nav-link {
        display: block;
        padding: 12px 16px;
      }

      .cat-hero {
        padding: 64px 0 56px;
      }

      .cat-hero h1 {
        font-size: 30px;
      }

      .cat-hero p {
        font-size: 15px;
      }

      .topic-row {
        gap: 14px;
        padding: 16px;
      }

      .topic-date {
        width: 48px;
        font-size: 12px;
      }

      .topic-date .date-day {
        font-size: 18px;
      }

      .topic-title {
        font-size: 14px;
      }

      .topic-desc {
        display: none;
      }

      .cta-box {
        padding: 40px 24px;
      }

      .cta-form {
        flex-direction: column;
      }

      .cta-form .btn {
        width: 100%;
      }

      .section {
        --section-gap: 48px;
      }
    }

    @media (max-width: 640px) {
      .brand {
        font-size: 17px;
      }

      .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 15px;
      }

      .section-title {
        font-size: 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .topic-row {
        align-items: flex-start;
      }

      .topic-arrow {
        display: none;
      }

      .mega-panel {
        display: none !important;
      }
    }

    @media (max-width: 520px) {
      .topic-date .date-day {
        font-size: 16px;
      }

      .cat-hero h1 {
        font-size: 26px;
      }

      .feature-card,
      .step-card {
        margin-bottom: 16px;
      }
    }

.shake {
      animation: shake 0.4s ease-out;
    }

    @keyframes shake {
      0%, 100% {
        transform: translateX(0);
      }
      25% {
        transform: translateX(-6px);
      }
      50% {
        transform: translateX(6px);
      }
      75% {
        transform: translateX(-3px);
      }
    }

/* roulang page: category3 */
:root {
  --primary: #1E2A24;
  --accent: #8F6A3C;
  --lime: #C8F04B;
  --bg: #F5F4EF;
  --darkbg: #18211C;
  --text: #2A2D2A;
  --text2: #6E7370;
  --border: rgba(30, 42, 36, 0.08);
  --shadow: 0 2px 8px rgba(24, 33, 28, 0.06);
  --shadow-hover: 0 8px 20px rgba(24, 33, 28, 0.12);
  --radius: 12px;
  --radius-btn: 8px;
  --container: 1200px;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
}
::selection {
  background: var(--lime);
  color: var(--primary);
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease-out;
  line-height: 1.2;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: #2b3d33;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(30, 42, 36, .2);
}
.btn-primary:active {
  transform: scale(.98);
}
.btn-outline {
  background: transparent;
  border-color: rgba(30, 42, 36, .25);
  color: var(--primary);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(30, 42, 36, .04);
}
.btn-dark {
  background: var(--primary);
  color: #fff;
}
.btn-dark:hover {
  background: #2b3d33;
  color: var(--lime);
  transform: translateY(-1px);
}
.btn-text {
  padding: 0;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  background: transparent;
}
.btn-text:hover {
  color: var(--accent);
}
.btn-text .fa-arrow-right {
  transition: transform .2s ease-out;
}
.btn-text:hover .fa-arrow-right {
  transform: translateX(3px);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(245, 244, 239, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}
.brand-icon {
  background: var(--primary);
  color: var(--lime);
  font-size: 15px;
  font-weight: 800;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -1px;
}
.nav-wrap {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
}
.nav-item {
  position: relative;
}
.nav-link {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 6px;
  position: relative;
  transition: color .2s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .25s ease-out;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover::after,
.nav-item.active .nav-link::after {
  transform: scaleX(1);
}
.nav-item.active .nav-link {
  color: var(--primary);
  font-weight: 600;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 8px;
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  transition: background .2s;
}
.nav-toggle:hover {
  background: #e9e8e2;
}
.mega-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 16px 32px rgba(24, 33, 28, .1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .25s ease-out;
  z-index: 999;
}
.mega-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 32px;
}
.mega-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mega-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  transition: background .2s;
}
.mega-link:hover {
  background: #ecebe5;
}
.mega-icon {
  width: 40px;
  height: 40px;
  border-radius: 9px;
  background: rgba(200, 240, 75, .25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.mega-text {
  display: flex;
  flex-direction: column;
}
.mega-text strong {
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
}
.mega-text small {
  color: var(--text2);
  font-size: 12px;
  margin-top: 2px;
}
.mega-feature {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  height: 100%;
  transition: box-shadow .2s, transform .2s;
}
.mega-feature:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.mega-feature img {
  width: 120px;
  height: 88px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.mega-feature span {
  display: flex;
  flex-direction: column;
}
.mega-feature strong {
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
}
.mega-feature small {
  color: var(--text2);
  font-size: 12px;
  margin-top: 4px;
  line-height: 1.5;
}
.cat-hero {
  background: var(--darkbg);
  color: #fff;
  padding: 84px 0 76px;
  position: relative;
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity: .3;
  z-index: 0;
}
.cat-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 40%, transparent 0%, rgba(24, 33, 28, .55) 100%);
  z-index: 0;
}
.cat-hero .container {
  position: relative;
  z-index: 1;
  max-width: 860px;
  text-align: center;
}
.cat-badge {
  display: inline-block;
  background: rgba(200, 240, 75, .15);
  border: 1px solid rgba(200, 240, 75, .4);
  color: var(--lime);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 18px;
  border-radius: 999px;
  letter-spacing: .5px;
  margin-bottom: 20px;
}
.cat-hero h1 {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 18px;
  color: #fff;
  letter-spacing: .5px;
}
.cat-hero p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(245, 244, 239, .82);
  max-width: 640px;
  margin: 0 auto 32px;
}
.cat-hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.cat-hero-actions .btn-primary {
  background: var(--lime);
  color: var(--primary);
}
.cat-hero-actions .btn-primary:hover {
  background: #d6f56a;
  box-shadow: 0 6px 18px rgba(200, 240, 75, .35);
}
.cat-hero-actions .btn-outline {
  border-color: rgba(255, 255, 255, .5);
  color: #fff;
}
.cat-hero-actions .btn-outline:hover {
  border-color: #fff;
  color: var(--lime);
  background: rgba(255, 255, 255, .06);
}
.section-head {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  letter-spacing: .3px;
}
.section-head p {
  color: var(--text2);
  font-size: 15px;
  line-height: 1.7;
}
.features-section {
  padding: 80px 0 72px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  height: 100%;
  box-shadow: var(--shadow);
  transition: box-shadow .2s ease-out, transform .2s ease-out;
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: 11px;
  background: rgba(200, 240, 75, .22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text2);
  font-size: 14px;
  line-height: 1.75;
}
.zigzag-section {
  padding: 72px 0 88px;
  background: #fff;
}
.zigzag-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 80px;
}
.zigzag-item:last-child {
  margin-bottom: 0;
}
.zigzag-media {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(24, 33, 28, .14);
  aspect-ratio: 16 / 10;
  background: #e7e6df;
  position: relative;
}
.zigzag-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.zigzag-body {
  padding: 8px 0;
}
.zigzag-body .tag {
  display: inline-block;
  background: rgba(200, 240, 75, .25);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: .5px;
}
.zigzag-body h3 {
  font-size: 25px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1.4;
}
.zigzag-body p {
  color: var(--text2);
  font-size: 15px;
  line-height: 1.85;
  max-width: 440px;
  margin-bottom: 18px;
}
.zigzag-reverse .zigzag-media {
  order: 2;
}
.scene-section {
  padding: 80px 0;
  background: var(--primary);
  color: #fff;
}
.scene-section .section-head h2 {
  color: #fff;
}
.scene-section .section-head p {
  color: rgba(245, 244, 239, .7);
}
.scene-item {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius);
  padding: 26px 22px;
  height: 100%;
  transition: background .2s, transform .2s;
}
.scene-item:hover {
  background: rgba(255, 255, 255, .08);
  transform: translateY(-2px);
}
.scene-num {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.scene-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}
.scene-item p {
  color: rgba(245, 244, 239, .7);
  font-size: 14px;
  line-height: 1.7;
}
.process-section {
  padding: 80px 0;
}
.process-steps {
  display: flex;
  align-items: stretch;
  gap: 20px;
}
.process-step {
  flex: 1;
  text-align: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 20px;
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
}
.process-step:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.step-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--lime);
  color: var(--primary);
  font-weight: 700;
  font-size: 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.process-step h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.process-step p {
  color: var(--text2);
  font-size: 14px;
  line-height: 1.7;
  max-width: 220px;
  margin: 0 auto;
}
.process-arrow {
  align-self: center;
  color: var(--accent);
  font-size: 24px;
  flex-shrink: 0;
}
.faq-section {
  padding: 80px 0;
  background: #eeede8;
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow .2s;
}
.faq-item:hover {
  box-shadow: 0 4px 14px rgba(24, 33, 28, .07);
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 19px 22px;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  text-align: left;
  transition: background .2s;
}
.faq-q:hover {
  background: #eef0e6;
}
.faq-icon {
  font-size: 22px;
  color: var(--accent);
  transition: transform .3s ease-out;
  flex-shrink: 0;
  line-height: 1;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease-out;
}
.faq-item.open .faq-a {
  max-height: 320px;
}
.faq-a p {
  padding: 0 22px 20px;
  color: var(--text2);
  font-size: 15px;
  line-height: 1.8;
}
.cta-section {
  padding: 80px 0 72px;
}
.cta-box {
  background: var(--lime);
  border-radius: 18px;
  padding: 52px 48px;
  text-align: center;
  color: var(--primary);
  position: relative;
  overflow: hidden;
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 10px;
}
.cta-box p {
  font-size: 15px;
  opacity: .8;
  margin-bottom: 8px;
}
.cta-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 480px;
  margin: 22px auto 0;
  align-items: center;
  justify-content: center;
}
.cta-form input {
  flex: 1 1 220px;
  height: 46px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(30, 42, 36, .2);
  padding: 0 16px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
}
.cta-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 42, 36, .12);
  outline: none;
}
.cta-form .btn {
  height: 46px;
}
.form-message {
  flex: 1 1 100%;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  margin-top: 6px;
}
.error-message {
  color: #C0392B;
}
.success-message {
  color: #2E7D32;
}
.has-error input {
  border-color: #C0392B !important;
  animation: shake .3s ease;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
.back-home {
  padding: 16px 0 72px;
  text-align: center;
}
.site-footer {
  background: var(--primary);
  color: rgba(245, 244, 239, .8);
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .brand {
  color: #fff;
  font-size: 19px;
}
.footer-brand .brand-icon {
  background: var(--lime);
  color: var(--primary);
}
.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(245, 244, 239, .65);
  max-width: 300px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: .3px;
}
.footer-col a {
  display: block;
  color: rgba(245, 244, 239, .7);
  padding: 5px 0;
  font-size: 14px;
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover {
  color: var(--lime);
  padding-left: 4px;
}
.footer-col p {
  font-size: 14px;
  color: rgba(245, 244, 239, .7);
  margin-bottom: 6px;
  line-height: 1.7;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: rgba(245, 244, 239, .5);
}
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .zigzag-item {
    gap: 36px;
  }
  .mega-inner {
    padding: 20px 24px;
  }
}
@media (max-width: 900px) {
  .header-inner {
    height: 64px;
  }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .nav-wrap .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    gap: 4px;
    box-shadow: 0 16px 28px rgba(24, 33, 28, .12);
    border-top: 1px solid var(--border);
    z-index: 100;
  }
  .nav-wrap.nav-open .nav-menu {
    display: flex;
  }
  .nav-link {
    padding: 14px 16px;
    border-radius: 8px;
  }
  .nav-link::after {
    display: none;
  }
  .nav-item.active .nav-link {
    background: rgba(200, 240, 75, .18);
  }
  .mega-panel {
    display: none !important;
  }
  .cat-hero {
    padding: 64px 0 56px;
  }
  .cat-hero h1 {
    font-size: 32px;
  }
  .process-steps {
    flex-direction: column;
  }
  .process-arrow {
    transform: rotate(90deg);
    align-self: center;
    margin: 4px 0;
  }
  .zigzag-item {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 56px;
  }
  .zigzag-reverse .zigzag-media {
    order: 0;
  }
  .cta-box {
    padding: 40px 24px;
  }
}
@media (max-width: 640px) {
  body {
    font-size: 15px;
  }
  .container {
    padding: 0 16px;
  }
  .brand {
    font-size: 17px;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }
  .nav-wrap {
    gap: 10px;
  }
  .nav-wrap .btn-primary {
    padding: 8px 14px;
    font-size: 13px;
  }
  .cat-hero {
    padding: 52px 0 48px;
  }
  .cat-hero h1 {
    font-size: 27px;
  }
  .cat-hero p {
    font-size: 15px;
  }
  .section-head {
    margin-bottom: 32px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .features-section {
    padding: 56px 0 48px;
  }
  .zigzag-section {
    padding: 56px 0 64px;
  }
  .scene-section {
    padding: 56px 0;
  }
  .process-section {
    padding: 56px 0;
  }
  .faq-section {
    padding: 56px 0;
  }
  .cta-section {
    padding: 56px 0 48px;
  }
  .cta-box h2 {
    font-size: 24px;
  }
  .cta-form {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-form input {
    width: 100%;
  }
  .cta-form .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .site-footer {
    padding: 48px 0 24px;
  }
}