/* roulang page: index */
:root {
  --primary: #0F766E;
  --primary-dark: #115E59;
  --primary-light: #2DD4BF;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --accent-light: #FDE68A;
  --bg: #F7FAF9;
  --white: #FFFFFF;
  --dark: #0C2A26;
  --text: #1F2937;
  --text-second: #4B5563;
  --text-third: #9CA3AF;
  --border: #E3E8E6;
  --border-light: #EDF2F0;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 2px 8px rgba(12,42,38,0.05);
  --shadow-hover: 0 12px 24px rgba(12,42,38,0.10);
  --shadow-header: 0 4px 16px rgba(12,42,38,0.08);
  --space-section: 80px;
  --container-width: 1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Inter","Helvetica Neue",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:all .25s ease}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
.container{
  max-width:var(--container-width);
  margin:0 auto;
  padding:0 32px;
}
section{
  padding:var(--space-section) 0;
}
.section-header{
  text-align:center;
  margin-bottom:48px;
}
.section-header .eyebrow{
  display:inline-block;
  background:rgba(15,118,110,0.08);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  padding:6px 16px;
  border-radius:100px;
  letter-spacing:1px;
  margin-bottom:14px;
}
.section-header h2{
  font-size:32px;
  font-weight:700;
  color:var(--text);
  line-height:1.3;
  margin-bottom:12px;
}
.section-header p{
  color:var(--text-second);
  font-size:15px;
  max-width:640px;
  margin:0 auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 28px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  border:none;
  cursor:pointer;
  transition:all .3s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(15,118,110,0.22);
}
.btn-accent{
  background:var(--accent);
  color:#fff;
}
.btn-accent:hover{
  background:var(--accent-dark);
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(245,158,11,0.28);
}
.btn-outline{
  background:transparent;
  border:1.5px solid rgba(255,255,255,0.9);
  color:#fff;
}
.btn-outline:hover{
  background:rgba(255,255,255,0.12);
  border-color:#fff;
}
.btn-outline-dark{
  background:transparent;
  border:1.5px solid var(--primary);
  color:var(--primary);
}
.btn-outline-dark:hover{
  background:rgba(15,118,110,0.08);
  transform:translateY(-2px);
}
/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:72px;
  background:rgba(255,255,255,0.55);
  backdrop-filter:blur(20px) saturate(1.4);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  border-bottom:1px solid rgba(255,255,255,0.30);
  transition:all .4s ease;
}
.site-header.scrolled{
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-header);
}
.nav-container{
  max-width:var(--container-width);
  height:100%;
  margin:0 auto;
  padding:0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-icon{
  width:40px;height:40px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:18px;
  box-shadow:0 4px 12px rgba(15,118,110,0.3);
}
.logo-text{
  font-size:18px;
  font-weight:800;
  color:var(--text);
  letter-spacing:0.5px;
}
.logo-text span{
  color:var(--accent);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  padding:8px 18px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-radius:6px;
  position:relative;
  transition:all .25s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  bottom:2px;left:50%;
  width:0;height:2px;
  background:var(--primary);
  transform:translateX(-50%);
  transition:width .3s ease;
}
.nav-link:hover{
  color:var(--primary);
}
.nav-link:hover::after,
.nav-link.active::after{
  width:24px;
}
.nav-link.active{
  color:var(--primary);
  font-weight:600;
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
}
.nav-cta{
  padding:10px 22px;
  font-size:14px;
}
.mobile-toggle{
  display:none;
  width:44px;height:44px;
  border:none;
  background:transparent;
  cursor:pointer;
  position:relative;
}
.mobile-toggle span{
  display:block;
  width:24px;height:2px;
  background:var(--text);
  margin:5px auto;
  border-radius:2px;
  transition:all .3s ease;
}
.mobile-toggle.active span:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2){
  opacity:0;
}
.mobile-toggle.active span:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}
.mobile-menu{
  display:none;
  position:fixed;
  top:72px;left:0;right:0;
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(20px);
  padding:20px 32px 32px;
  box-shadow:0 12px 32px rgba(12,42,38,0.12);
  z-index:999;
  border-bottom:1px solid var(--border);
}
.mobile-menu.open{
  display:block;
}
.mobile-link{
  display:block;
  padding:14px 8px;
  font-size:20px;
  font-weight:600;
  color:var(--text);
  border-bottom:1px solid var(--border-light);
}
.mobile-link:hover{
  color:var(--primary);
}
.mobile-link.active{
  color:var(--primary);
}
.mobile-cta{
  display:block;
  margin-top:20px;
  text-align:center;
}
/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:85vh;
  display:flex;
  align-items:center;
  padding:0;
  background-color:var(--dark);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  z-index:0;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(115deg, rgba(12,42,38,0.75) 0%, rgba(12,42,38,0.55) 50%, rgba(12,42,38,0.30) 100%);
  z-index:1;
}
.hero-content{
  position:relative;
  z-index:2;
  max-width:var(--container-width);
  margin:0 auto;
  padding:120px 32px 60px;
  width:100%;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(245,158,11,0.18);
  border:1px solid rgba(245,158,11,0.4);
  color:var(--accent-light);
  font-size:13px;
  font-weight:600;
  padding:6px 16px;
  border-radius:100px;
  margin-bottom:22px;
  letter-spacing:0.5px;
}
.hero-tag i{
  font-size:12px;
}
.hero h1{
  font-size:48px;
  font-weight:800;
  color:#fff;
  line-height:1.2;
  margin-bottom:18px;
  max-width:720px;
  letter-spacing:0.5px;
}
.hero-sub{
  font-size:19px;
  color:rgba(255,255,255,0.85);
  line-height:1.65;
  max-width:620px;
  margin-bottom:32px;
}
.hero-ctas{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:48px;
}
.hero-stats{
  display:flex;
  gap:48px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,0.18);
  padding-top:28px;
}
.hero-stat strong{
  display:block;
  font-size:28px;
  font-weight:800;
  color:#fff;
  line-height:1.3;
}
.hero-stat span{
  font-size:14px;
  color:rgba(255,255,255,0.75);
}
.scroll-indicator{
  position:absolute;
  bottom:28px;
  left:50%;
  transform:translateX(-50%);
  z-index:2;
  color:rgba(255,255,255,0.7);
  font-size:18px;
  animation:bounce 2s infinite;
}
@keyframes bounce{
  0%,20%,50%,80%,100%{transform:translate(-50%,0)}
  40%{transform:translate(-50%,-10px)}
  60%{transform:translate(-50%,-5px)}
}
/* ===== Metrics ===== */
.metrics{
  padding:60px 0;
  margin-top:-30px;
  position:relative;
  z-index:3;
}
.metric-card{
  background:#fff;
  border-radius:var(--radius-md);
  padding:32px 24px;
  box-shadow:var(--shadow-card);
  border-top:3px solid var(--primary);
  text-align:left;
  transition:all .3s ease;
  height:100%;
}
.metric-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.metric-number{
  font-size:42px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
  margin-bottom:6px;
  letter-spacing:-1px;
}
.metric-number .unit{
  font-size:18px;
  font-weight:600;
  color:var(--text-third);
  margin-left:2px;
}
.metric-label{
  font-size:14px;
  color:var(--text-second);
  margin-bottom:8px;
  font-weight:500;
}
.metric-trend{
  font-size:12px;
  color:#10B981;
  display:flex;
  align-items:center;
  gap:4px;
}
.metric-trend.down{
  color:var(--accent);
}
/* ===== Services ===== */
.services{
  background:#fff;
}
.service-card{
  background:var(--bg);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  border:1px solid var(--border-light);
  transition:all .3s ease;
  height:100%;
  display:flex;
  flex-direction:column;
}
.service-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:transparent;
  border-top:2px solid var(--primary);
}
.service-img{
  height:170px;
  overflow:hidden;
  position:relative;
}
.service-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.service-card:hover .service-img img{
  transform:scale(1.05);
}
.service-icon{
  width:40px;height:40px;
  background:rgba(15,118,110,0.12);
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  font-size:17px;
  margin:20px 20px 0;
}
.service-body{
  padding:16px 20px 20px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.service-body h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:8px;
  color:var(--text);
}
.service-body p{
  font-size:14px;
  color:var(--text-second);
  line-height:1.6;
  flex:1;
  margin-bottom:14px;
}
.service-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.service-link:hover{
  color:var(--accent-dark);
  gap:10px;
}
/* ===== Comparison ===== */
.comparison{
  background:var(--bg);
}
.comparison-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:stretch;
}
.compare-card{
  border-radius:var(--radius-md);
  padding:36px 32px;
  position:relative;
  transition:all .3s ease;
}
.compare-card.old-way{
  background:#F3F5F4;
  border:1px solid var(--border);
}
.compare-card.platform-way{
  background:#fff;
  border:1px solid rgba(15,118,110,0.25);
  border-left:4px solid var(--primary);
  box-shadow:var(--shadow-card);
}
.compare-card.platform-way:hover{
  box-shadow:var(--shadow-hover);
}
.compare-card h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:20px;
  color:var(--text);
  display:flex;
  align-items:center;
  gap:10px;
}
.compare-card h3 i{
  font-size:18px;
}
.old-way h3 i{
  color:var(--text-third);
}
.platform-way h3 i{
  color:var(--primary);
}
.compare-list{
  margin-bottom:24px;
}
.compare-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:8px 0;
  font-size:15px;
  color:var(--text-second);
  line-height:1.6;
}
.compare-list li i{
  margin-top:4px;
  font-size:15px;
  flex-shrink:0;
}
.old-way .compare-list li i{
  color:#D1D5DB;
}
.platform-way .compare-list li i{
  color:var(--primary);
}
.compare-card .btn{
  margin-top:8px;
}
/* ===== News Section ===== */
.news-section{
  background:#fff;
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.news-card{
  background:var(--bg);
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:all .3s ease;
  display:flex;
  flex-direction:column;
  height:100%;
}
.news-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.news-cover{
  position:relative;
  height:160px;
  overflow:hidden;
}
.news-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.news-badge{
  position:absolute;
  top:12px;left:12px;
  background:rgba(245,158,11,0.92);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:6px;
  letter-spacing:0.5px;
}
.news-body{
  padding:20px 20px 16px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.news-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-title a{
  color:var(--text);
}
.news-title a:hover{
  color:var(--primary);
}
.news-excerpt{
  font-size:14px;
  color:var(--text-second);
  line-height:1.6;
  flex:1;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:14px;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--border-light);
  padding-top:12px;
}
.news-date{
  font-size:13px;
  color:var(--text-third);
  display:flex;
  align-items:center;
  gap:4px;
}
.news-link{
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:4px;
}
.news-link:hover{
  color:var(--accent-dark);
  gap:6px;
}
.news-empty{
  text-align:center;
  padding:60px 20px;
  background:var(--bg);
  border:2px dashed var(--border);
  border-radius:var(--radius-md);
  color:var(--text-third);
  font-size:16px;
}
.news-empty i{
  font-size:40px;
  display:block;
  margin-bottom:14px;
  opacity:0.5;
}
/* ===== FAQ ===== */
.faq-section{
  background:var(--bg);
}
.faq-list{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .3s ease;
}
.faq-item.active{
  box-shadow:var(--shadow-card);
  border-color:rgba(15,118,110,0.3);
}
.faq-question{
  width:100%;
  background:transparent;
  border:none;
  padding:20px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  text-align:left;
  gap:16px;
  transition:color .3s ease;
}
.faq-question:hover{
  color:var(--primary);
}
.faq-question .faq-icon{
  width:28px;height:28px;
  background:rgba(15,118,110,0.12);
  color:var(--primary);
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  flex-shrink:0;
  transition:all .3s ease;
}
.faq-item.active .faq-icon{
  background:var(--primary);
  color:#fff;
  transform:rotate(45deg);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-answer-inner{
  padding:0 24px 20px;
  font-size:15px;
  color:var(--text-second);
  line-height:1.7;
  border-left:3px solid var(--primary);
  margin-left:24px;
  padding-left:20px;
}
/* ===== Contact / Form ===== */
.contact-section{
  background:#fff;
}
.contact-wrap{
  background:var(--bg);
  border-radius:var(--radius-lg);
  padding:48px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  box-shadow:var(--shadow-card);
}
.contact-left h3{
  font-size:26px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--text);
  line-height:1.4;
}
.contact-left p{
  font-size:15px;
  color:var(--text-second);
  line-height:1.7;
  margin-bottom:28px;
}
.contact-points{
  margin-bottom:32px;
}
.contact-points li{
  display:flex;
  align-items:center;
  gap:14px;
  padding:10px 0;
  font-size:15px;
  color:var(--text);
  font-weight:500;
  border-bottom:1px solid var(--border-light);
}
.contact-points li:last-child{
  border-bottom:none;
}
.contact-points li i{
  width:32px;height:32px;
  background:rgba(15,118,110,0.12);
  border-radius:8px;
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  flex-shrink:0;
}
.contact-home{
  display:flex;
  flex-direction:column;
  gap:11px;
  margin-top:12px;
  font-size:14px;
  color:var(--text-second);
}
.contact-home li{
  display:flex;
  align-items:center;
  gap:10px;
}
.contact-home li i{
  width:32px;height:32px;
  background:var(--white);
  border-radius:8px;
  border:1px solid var(--border);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  flex-shrink:0;
}
.contact-form-card{
  background:#fff;
  border-radius:var(--radius-md);
  padding:36px 32px;
  box-shadow:var(--shadow-hover);
}
.form-group{
  margin-bottom:20px;
}
.form-group label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:6px;
}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;
  height:46px;
  background:#F3F6F5;
  border:1px solid #D8E0DE;
  border-radius:var(--radius-sm);
  padding:0 14px;
  font-size:15px;
  color:var(--text);
  transition:all .3s ease;
  outline:none;
}
.form-group textarea{
  height:auto;
  min-height:100px;
  padding:12px 14px;
  resize:vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(15,118,110,0.12);
  background:#fff;
}
.form-group input::placeholder,
.form-group textarea::placeholder{
  color:var(--text-third);
}
.form-submit{
  width:100%;
  padding:14px 0;
  font-size:15px;
}
.form-note{
  margin-top:12px;
  font-size:12px;
  color:var(--text-third);
  text-align:center;
}
/* ===== Footer ===== */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,0.75);
  padding:60px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;
  gap:48px;
  padding-bottom:44px;
}
.footer-brand .logo-text{
  color:#fff;
  font-size:20px;
  margin-bottom:12px;
}
.footer-brand .logo-text span{
  color:var(--accent);
}
.footer-desc{
  font-size:14px;
  line-height:1.7;
  margin-top:14px;
  color:rgba(255,255,255,0.7);
}
.footer-col h4{
  font-size:16px;
  font-weight:600;
  color:#fff;
  margin-bottom:20px;
  position:relative;
  padding-bottom:10px;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:28px;height:3px;
  background:var(--accent);
  border-radius:2px;
}
.footer-col ul li{
  margin-bottom:12px;
}
.footer-col ul li a{
  font-size:14px;
  color:rgba(255,255,255,0.7);
  transition:all .25s ease;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.footer-col ul li a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  margin-bottom:12px;
  color:rgba(255,255,255,0.7);
}
.footer-contact li i{
  margin-top:4px;
  color:var(--accent);
  flex-shrink:0;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.10);
  padding:22px 0;
  text-align:center;
  font-size:14px;
  color:rgba(255,255,255,0.6);
}
.footer-bottom a{
  color:rgba(255,255,255,0.8);
}
.footer-bottom a:hover{
  color:var(--accent);
}
/* ===== Responsive ===== */
@media screen and (max-width:1023px){
  .main-nav{
    display:none;
  }
  .mobile-toggle{
    display:block;
  }
  .nav-cta{
    display:none;
  }
  .hero h1{
    font-size:38px;
  }
  .hero-sub{
    font-size:17px;
  }
  .hero-stats{
    gap:28px;
  }
  .comparison-grid{
    grid-template-columns:1fr;
  }
  .news-grid{
    grid-template-columns:1fr 1fr;
  }
  .contact-wrap{
    grid-template-columns:1fr;
    padding:32px 28px;
    gap:32px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
}
@media screen and (max-width:640px){
  .container{
    padding:0 20px;
  }
  section{
    padding:48px 0;
  }
  .section-header h2{
    font-size:26px;
  }
  .nav-container{
    padding:0 20px;
  }
  .hero{
    min-height:92vh;
  }
  .hero-content{
    padding:100px 20px 50px;
  }
  .hero h1{
    font-size:30px;
  }
  .hero-sub{
    font-size:16px;
  }
  .hero-stats{
    flex-direction:column;
    gap:16px;
  }
  .hero-stat strong{
    font-size:24px;
  }
  .hero-ctas{
    flex-direction:column;
    gap:12px;
  }
  .hero-ctas .btn{
    width:100%;
  }
  .metrics{
    padding:40px 0;
  }
  .metric-card{
    padding:24px 20px;
  }
  .metric-number{
    font-size:34px;
  }
  .news-grid{
    grid-template-columns:1fr;
  }
  .compare-card{
    padding:24px 20px;
  }
  .contact-wrap{
    padding:24px 20px;
    border-radius:16px;
  }
  .contact-form-card{
    padding:24px 20px;
  }
  .form-submit{
    width:100%;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:28px;
  }
  .footer-bottom{
    padding:18px 20px;
    font-size:13px;
  }
  .faq-question{
    padding:16px 18px;
    font-size:15px;
  }
  .faq-answer-inner{
    margin-left:18px;
    padding-left:16px;
  }
  .nav-container{
    height:64px;
  }
  .mobile-menu{
    top:64px;
  }
  .site-header{
    height:64px;
  }
}
@media screen and (max-width:520px){
  .brand-logo .logo-text{
    font-size:16px;
  }
  .logo-icon{
    width:34px;height:34px;
    font-size:15px;
  }
  .section-header{
    margin-bottom:32px;
  }
}

/* roulang page: category1 */
:root {
      --primary: #0F766E;
      --primary-dark: #115E59;
      --primary-light: #2DD4BF;
      --accent: #F59E0B;
      --accent-dark: #D97706;
      --accent-light: #FDE68A;
      --bg-light: #F7FAF9;
      --white: #FFFFFF;
      --dark: #0C2A26;
      --text-main: #1F2937;
      --text-sub: #4B5563;
      --text-weak: #9CA3AF;
      --border: #E3E8E6;
      --border-light: #EDF2F0;
      --success: #10B981;
      --warning: #F59E0B;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --radius-xs: 4px;
      --shadow-card: 0 2px 8px rgba(12,42,38,0.05);
      --shadow-hover: 0 12px 24px rgba(12,42,38,0.10);
      --shadow-nav: 0 4px 16px rgba(12,42,38,0.08);
      --space-section-desktop: 80px;
      --space-section-tablet: 64px;
      --space-section-mobile: 48px;
      --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Inter", "Helvetica Neue", Arial, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-light);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }

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

    .section {
      padding-top: var(--space-section-desktop);
      padding-bottom: var(--space-section-desktop);
    }

    .text-center {
      text-align: center;
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.75;
      margin-bottom: 24px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      line-height: 1.4;
      border: 1.5px solid transparent;
      cursor: pointer;
      transition: all 0.2s ease;
      text-align: center;
    }

    .btn-primary {
      background-color: var(--primary);
      color: var(--white);
    }

    .btn-primary:hover {
      background-color: var(--primary-dark);
      color: var(--white);
      transform: translateY(-2px);
      box-shadow: 0 8px 16px rgba(15,118,110,0.22);
    }

    .btn-accent {
      background-color: var(--accent);
      color: var(--white);
    }

    .btn-accent:hover {
      background-color: var(--accent-dark);
      color: var(--white);
      transform: translateY(-2px);
      box-shadow: 0 8px 16px rgba(245,158,11,0.25);
    }

    .btn-outline-light {
      border-color: rgba(255,255,255,0.85);
      color: var(--white);
      background: transparent;
    }

    .btn-outline-light:hover {
      background-color: rgba(255,255,255,0.12);
      color: var(--white);
      border-color: var(--white);
    }

    /* ===== Navbar ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: 72px;
      display: flex;
      align-items: center;
      background: rgba(255,255,255,0.55);
      -webkit-backdrop-filter: blur(20px) saturate(1.4);
      backdrop-filter: blur(20px) saturate(1.4);
      border-bottom: 1px solid rgba(255,255,255,0.30);
      transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .site-header.scrolled {
      background: var(--white);
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow-nav);
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

    .logo-text {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.2;
      white-space: nowrap;
      letter-spacing: -0.3px;
    }

    .logo-text span {
      color: var(--accent);
      font-weight: 700;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-link {
      display: inline-block;
      padding: 8px 16px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-xs);
      position: relative;
      transition: color 0.2s ease;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 2px;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
      opacity: 0;
      transform: scaleX(0.4);
      transition: all 0.25s ease;
    }

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

    .nav-link:hover::after,
    .nav-link.active::after {
      opacity: 1;
      transform: scaleX(1);
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .nav-search {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(15,118,110,0.08);
      color: var(--primary);
      border: none;
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .nav-search:hover {
      background: rgba(15,118,110,0.16);
      color: var(--primary-dark);
    }

    .nav-cta {
      display: inline-block;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      color: var(--white);
      background-color: var(--primary);
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .nav-cta:hover {
      background-color: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 6px 14px rgba(15,118,110,0.20);
      color: var(--white);
    }

    .hamburger {
      display: none;
      width: 42px;
      height: 42px;
      border: none;
      background: rgba(15,118,110,0.08);
      border-radius: var(--radius-sm);
      cursor: pointer;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      transition: background 0.2s ease;
    }

    .hamburger:hover {
      background: rgba(15,118,110,0.16);
    }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 999;
      background: rgba(255,255,255,0.94);
      -webkit-backdrop-filter: blur(24px);
      backdrop-filter: blur(24px);
      padding: 96px 32px 40px;
      flex-direction: column;
      gap: 16px;
      overflow-y: auto;
    }

    .mobile-menu.open {
      display: flex;
    }

    .mobile-menu a {
      font-size: 24px;
      font-weight: 600;
      color: var(--text-main);
      padding: 12px 0;
      border-bottom: 1px solid var(--border-light);
    }

    .mobile-menu a.active {
      color: var(--primary);
    }

    .mobile-menu-btn {
      display: inline-block;
      margin-top: 16px;
      text-align: center;
    }

    .menu-close {
      position: absolute;
      top: 20px;
      right: 24px;
      font-size: 28px;
      background: none;
      border: none;
      color: var(--text-sub);
      cursor: pointer;
      padding: 8px;
    }

    /* ===== Hero ===== */
    .category-hero {
      position: relative;
      min-height: 330px;
      display: flex;
      align-items: center;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center 30%;
      background-repeat: no-repeat;
      padding: 120px 0 60px;
      margin-top: 0;
      overflow: hidden;
    }

    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(12,42,38,0.78) 0%, rgba(12,42,38,0.52) 55%, rgba(12,42,38,0.36) 100%);
      z-index: 1;
    }

    .category-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(rgba(255,255,255,0.10) 1px, transparent 1px);
      background-size: 22px 22px;
      z-index: 2;
      pointer-events: none;
    }

    .category-hero .container {
      position: relative;
      z-index: 3;
    }

    .category-hero h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      color: var(--white);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .category-hero .hero-desc {
      font-size: 18px;
      line-height: 1.7;
      color: rgba(255,255,255,0.85);
      max-width: 640px;
      margin-bottom: 24px;
    }

    .hero-breadcrumb {
      font-size: 14px;
      color: rgba(255,255,255,0.70);
      margin-bottom: 20px;
    }

    .hero-breadcrumb a {
      color: rgba(255,255,255,0.85);
      text-decoration: none;
    }

    .hero-breadcrumb a:hover {
      color: var(--accent);
    }

    .hero-breadcrumb .sep {
      margin: 0 8px;
      color: rgba(255,255,255,0.50);
    }

    /* ===== 图文交错区 ===== */
    .guide-section {
      padding: var(--space-section-desktop) 0;
    }

    .guide-section .section-header {
      margin-bottom: 48px;
    }

    .guide-row {
      display: flex;
      align-items: center;
      gap: 64px;
      margin-bottom: 72px;
    }

    .guide-row:nth-child(odd) {
      flex-direction: row;
    }

    .guide-row:nth-child(even) {
      flex-direction: row-reverse;
    }

    .guide-row:last-child {
      margin-bottom: 0;
    }

    .guide-text {
      flex: 1;
    }

    .guide-text .tag-badge {
      display: inline-block;
      background: rgba(15,118,110,0.10);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 100px;
      margin-bottom: 16px;
      letter-spacing: 0.3px;
    }

    .guide-text h2 {
      font-size: 28px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .guide-text p {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-sub);
      margin-bottom: 16px;
    }

    .guide-text ul {
      list-style: none;
      padding: 0;
      margin: 16px 0 0;
    }

    .guide-text ul li {
      position: relative;
      padding-left: 28px;
      font-size: 15px;
      line-height: 1.7;
      color: var(--text-sub);
      margin-bottom: 10px;
    }

    .guide-text ul li::before {
      content: "\f00c";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      left: 0;
      top: 1px;
      width: 20px;
      height: 20px;
      background: rgba(15,118,110,0.12);
      color: var(--primary);
      font-size: 11px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .guide-media {
      flex: 1;
    }

    .guide-media .media-frame {
      background: var(--white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
      transition: box-shadow 0.3s ease, transform 0.3s ease;
    }

    .guide-media .media-frame:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .guide-media img {
      width: 100%;
      height: 280px;
      object-fit: cover;
    }

    .guide-media .media-caption {
      padding: 12px 16px;
      font-size: 13px;
      color: var(--text-weak);
      text-align: center;
      background: var(--white);
      border-top: 1px solid var(--border-light);
    }

    /* ===== 关键词链接卡 ===== */
    .keyword-cards {
      margin-top: 48px;
    }

    .keyword-cards .card {
      background: var(--white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
      padding: 28px 24px;
      text-align: center;
      transition: all 0.25s ease;
      height: 100%;
    }

    .keyword-cards .card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
      border-color: rgba(15,118,110,0.25);
    }

    .keyword-cards .card i {
      font-size: 32px;
      color: var(--accent);
      margin-bottom: 14px;
      display: inline-block;
    }

    .keyword-cards .card h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .keyword-cards .card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 14px;
    }

    .keyword-cards .card a {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .keyword-cards .card a:hover {
      color: var(--primary-dark);
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--white);
    }

    .faq-section .section-header {
      margin-bottom: 40px;
    }

    .accordion-item {
      background: var(--bg-light);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
      overflow: hidden;
    }

    .accordion-item:hover,
    .accordion-item.is-open {
      border-color: rgba(15,118,110,0.30);
      box-shadow: var(--shadow-card);
    }

    .accordion-item.is-open {
      box-shadow: var(--shadow-card);
    }

    .accordion-trigger {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      padding: 20px 24px;
      background: transparent;
      border: none;
      cursor: pointer;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      transition: color 0.2s ease;
    }

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

    .accordion-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(15,118,110,0.10);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      transition: all 0.25s ease;
    }

    .accordion-item.is-open .accordion-icon {
      background: var(--primary);
      color: var(--white);
      transform: rotate(45deg);
    }

    .accordion-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.25s ease, padding 0.25s ease;
      padding: 0 24px;
    }

    .accordion-item.is-open .accordion-panel {
      max-height: 400px;
      padding: 0 24px 20px;
    }

    .accordion-panel p {
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-sub);
      border-left: 3px solid var(--primary);
      padding-left: 16px;
    }

    /* ===== CTA 横幅 ===== */
    .cta-banner {
      position: relative;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%, #0C2A26 100%);
      padding: 72px 0;
      text-align: center;
      overflow: hidden;
    }

    .cta-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(rgba(255,255,255,0.08) 1px, transparent 1px);
      background-size: 24px 24px;
      pointer-events: none;
    }

    .cta-banner .container {
      position: relative;
      z-index: 2;
    }

    .cta-banner h2 {
      font-size: 32px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .cta-banner p {
      font-size: 16px;
      color: rgba(255,255,255,0.80);
      margin-bottom: 28px;
      max-width: 560px;
      margin-left: auto;
      margin-right: auto;
    }

    .cta-banner .btn-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark);
      color: rgba(255,255,255,0.75);
      padding-top: 64px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255,255,255,0.10);
    }

    .footer-brand .logo-text {
      color: var(--white);
      font-size: 25px;
      margin-bottom: 14px;
      display: inline-block;
    }

    .footer-desc {
      font-size: 15px;
      line-height: 1.75;
      color: rgba(255,255,255,0.55);
      max-width: 300px;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: var(--white);
      margin-bottom: 18px;
    }

    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      color: rgba(255,255,255,0.65);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: color 0.2s ease;
    }

    .footer-col ul li a:hover {
      color: var(--accent);
    }

    .footer-col ul li a i {
      color: var(--accent);
      font-size: 12px;
    }

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      color: rgba(255,255,255,0.65);
      font-size: 14px;
    }

    .footer-contact li i {
      width: 20px;
      color: var(--accent);
      text-align: center;
    }

    .footer-bottom {
      padding: 20px 0;
      text-align: center;
    }

    .footer-bottom p {
      font-size: 14px;
      color: rgba(255,255,255,0.45);
      margin: 0;
    }

    /* ===== 响应式 ===== */
    @media screen and (max-width: 1023px) {
      .container {
        padding-left: 24px;
        padding-right: 24px;
      }

      .nav-links,
      .nav-actions {
        display: none;
      }

      .hamburger {
        display: inline-flex;
      }

      .guide-row,
      .guide-row:nth-child(odd),
      .guide-row:nth-child(even) {
        flex-direction: column;
        gap: 40px;
      }

      .guide-media img {
        height: 240px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }
    }

    @media screen and (max-width: 640px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }

      .category-hero {
        padding: 110px 0 50px;
        min-height: 300px;
      }

      .category-hero h1 {
        font-size: 30px;
        line-height: 1.3;
      }

      .category-hero .hero-desc {
        font-size: 16px;
      }

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

      .guide-section,
      .section {
        padding-top: var(--space-section-mobile);
        padding-bottom: var(--space-section-mobile);
      }

      .guide-row {
        margin-bottom: 48px;
      }

      .guide-text h2 {
        font-size: 22px;
      }

      .guide-media img {
        height: 190px;
      }

      .keyword-cards .card {
        margin-bottom: 20px;
      }

      .accordion-trigger {
        padding: 16px 18px;
        font-size: 15px;
      }

      .accordion-panel {
        padding: 0 18px;
      }

      .accordion-item.is-open .accordion-panel {
        padding: 0 18px 16px;
      }

      .cta-banner {
        padding: 56px 0;
      }

      .cta-banner h2 {
        font-size: 24px;
      }

      .cta-banner .btn-group {
        flex-direction: column;
        align-items: center;
      }

      .cta-banner .btn {
        width: 100%;
        max-width: 280px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-bottom: 40px;
      }

      .footer-brand .footer-desc {
        max-width: 100%;
      }

      .footer-col {
        margin-top: 10px;
      }
    }

    @media screen and (min-width: 641px) and (max-width: 767px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }

    :focus-visible {
      outline: 3px solid rgba(15,118,110,0.40);
      outline-offset: 2px;
    }

/* roulang page: article */
:root {
            --primary: #0F766E;
            --primary-dark: #115E59;
            --primary-light: #2DD4BF;
            --accent: #F59E0B;
            --accent-dark: #D97706;
            --accent-light: #FDE68A;
            --bg-body: #F7FAF9;
            --bg-card: #FFFFFF;
            --bg-deep: #0C2A26;
            --text-1: #1F2937;
            --text-2: #4B5563;
            --text-3: #9CA3AF;
            --border-color: #E3E8E6;
            --border-light: #EDF2F0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-xs: 4px;
            --shadow-card: 0 2px 8px rgba(12, 42, 38, 0.05);
            --shadow-hover: 0 12px 24px rgba(12, 42, 38, 0.10);
            --shadow-header: 0 4px 16px rgba(12, 42, 38, 0.08);
            --space-section: 80px;
            --font-stack: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            background: var(--bg-body);
            color: var(--text-1);
            line-height: 1.75;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        ul,
        ol {
            list-style-position: inside;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 20px;
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.55);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border-bottom: 1px solid rgba(255, 255, 255, 0.30);
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        }

        .site-header.is-scrolled {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-header);
        }

        .nav-wrap {
            width: 100%;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 17px;
            box-shadow: 0 3px 10px rgba(15, 118, 110, 0.28);
        }

        .logo-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--text-1);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--accent);
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .nav-link {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-1);
            position: relative;
            padding: 8px 0;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }

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

        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }

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

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 3px 12px rgba(15, 118, 110, 0.22);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(15, 118, 110, 0.28);
            color: #fff;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 3px 12px rgba(245, 158, 11, 0.25);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(245, 158, 11, 0.28);
            color: #fff;
        }

        .btn-outline-light {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.85);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-xs);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-1);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 16px 24px 24px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-header);
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 999;
            transform: translateY(-12px);
            opacity: 0;
            visibility: hidden;
            transition: transform 0.28s ease, opacity 0.28s ease, visibility 0.28s;
        }

        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }

        .mobile-link {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-1);
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: color 0.2s ease;
        }

        .mobile-link:hover,
        .mobile-link.active {
            color: var(--primary);
        }

        .article-header {
            position: relative;
            padding: 160px 0 64px;
            background: linear-gradient(135deg, rgba(12, 42, 38, 0.88), rgba(15, 118, 110, 0.72)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            background-attachment: fixed;
            color: #fff;
            margin-bottom: 48px;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            line-height: 1.4;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: var(--accent-light);
        }

        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb .current {
            color: rgba(255, 255, 255, 0.95);
            font-weight: 600;
            max-width: 400px;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .article-header-inner {
            max-width: 860px;
        }

        .article-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 20px;
            letter-spacing: -0.01em;
            word-break: break-word;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.8);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item i {
            color: var(--accent-light);
            font-size: 14px;
        }

        .article-body {
            padding: 48px 0 64px;
        }

        .article-layout {
            max-width: 860px;
            margin: 0 auto;
        }

        .article-content {
            max-width: 760px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-2);
        }

        .article-content p {
            margin-bottom: 24px;
        }

        .article-content p:last-child {
            margin-bottom: 0;
        }

        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: var(--text-1);
            font-weight: 700;
            line-height: 1.4;
            margin-top: 48px;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .article-content h2 {
            font-size: 28px;
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }

        .article-content h3 {
            font-size: 22px;
        }

        .article-content h4 {
            font-size: 18px;
        }

        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(15, 118, 110, 0.25);
            transition: border-color 0.2s ease;
        }

        .article-content a:hover {
            border-color: var(--primary);
        }

        .article-content blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: #F0F7F6;
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-2);
            font-size: 15px;
            line-height: 1.7;
        }

        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-content ul,
        .article-content ol {
            margin: 20px 0;
            padding-left: 0;
            list-style-position: inside;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 12px;
            padding-left: 22px;
            position: relative;
        }

        .article-content ul li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 12px;
            width: 7px;
            height: 7px;
            background: var(--primary);
            border-radius: 50%;
        }

        .article-content ul li {
            list-style: none;
        }

        .article-content ol {
            counter-reset: article-list;
        }

        .article-content ol li {
            list-style: none;
            counter-increment: article-list;
        }

        .article-content ol li::before {
            content: counter(article-list) ".";
            position: absolute;
            left: 0;
            top: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
        }

        .article-content img {
            width: 100%;
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-hover);
        }

        .article-content figure {
            margin: 24px 0;
        }

        .article-content figcaption {
            text-align: center;
            font-size: 13px;
            color: var(--text-3);
            margin-top: 8px;
        }

        .article-content pre {
            background: var(--bg-deep);
            color: #B8E0C9;
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            margin: 24px 0;
            font-family: "SF Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
        }

        .article-content code {
            background: #EFF4F2;
            color: var(--primary-dark);
            border-radius: 4px;
            padding: 2px 7px;
            font-size: 14px;
            font-family: "SF Mono", Consolas, monospace;
        }

        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
            border-radius: 0;
        }

        .article-content strong {
            font-weight: 700;
            color: var(--text-1);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .article-content th {
            background: #F0F7F6;
            color: var(--text-1);
            font-weight: 600;
            text-align: left;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
        }

        .article-content td {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            color: var(--text-2);
        }

        .article-content hr {
            border: none;
            border-top: 1px solid var(--border-light);
            margin: 40px 0;
        }

        .article-empty {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            padding: 96px 48px;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-color);
            box-shadow: var(--shadow-card);
        }

        .empty-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--bg-body);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--primary);
            margin: 0 auto 20px;
        }

        .empty-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 12px;
        }

        .empty-text {
            font-size: 15px;
            color: var(--text-3);
            margin-bottom: 24px;
        }

        .related-section {
            padding: 64px 0 80px;
            background: var(--bg-body);
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 40px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-1);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-title span {
            color: var(--primary);
        }

        .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

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

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

        .related-thumb {
            position: relative;
            display: block;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #EAF0EE;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }

        .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(245, 158, 11, 0.92);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            box-shadow: 0 2px 10px rgba(245, 158, 11, 0.25);
            letter-spacing: 0.02em;
        }

        .related-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-1);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s ease;
        }

        .related-body h3 a:hover {
            color: var(--primary);
        }

        .related-body p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.65;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .related-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-3);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }

        .related-meta a {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color 0.2s ease;
        }

        .related-meta a:hover {
            color: var(--primary-dark);
        }

        .article-cta {
            padding: 56px 0 80px;
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .article-cta::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(15, 118, 110, 0.25);
            filter: blur(80px);
        }

        .cta-inner {
            position: relative;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 0;
            font-size: 14.5px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand .logo-text span {
            color: var(--accent);
        }

        .footer-brand .logo-mark {
            background: var(--accent);
            color: var(--bg-deep);
        }

        .footer-desc {
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
        }

        .footer-col h4::after {
            content: "";
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.72);
            transition: color 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-col ul li a i {
            color: var(--accent);
            font-size: 12px;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-col ul li i {
            color: var(--accent);
            margin-right: 4px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.2s;
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-bottom p {
            margin-bottom: 0;
        }

        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta .btn-accent {
                display: none;
            }

            .mobile-menu {
                display: flex;
            }

            .article-title {
                font-size: 32px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            :root {
                --space-section: 48px;
            }

            .nav-container {
                height: 64px;
                padding: 0 20px;
            }

            .mobile-menu {
                top: 64px;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .article-header {
                padding: 130px 0 48px;
                background-attachment: scroll;
            }

            .article-title {
                font-size: 26px;
                line-height: 1.3;
            }

            .article-meta {
                gap: 12px;
                font-size: 12.5px;
                flex-wrap: wrap;
            }

            .meta-item {
                gap: 4px;
            }

            .article-body {
                padding: 24px 0 48px;
            }

            .article-content {
                padding: 28px 20px;
                font-size: 15px;
                line-height: 1.75;
                border-radius: var(--radius-md);
            }

            .article-content h2 {
                font-size: 22px;
            }

            .article-content h3 {
                font-size: 19px;
            }

            .related-section {
                padding: 48px 0 56px;
            }

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

            .related-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .article-cta {
                padding: 48px 0;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

            .cta-inner p {
                font-size: 15px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 32px;
            }

            .footer-desc {
                max-width: 100%;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                margin-bottom: 28px;
            }

            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (min-width: 641px) and (max-width: 1024px) {
            .mobile-menu {
                display: flex;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0F766E;
  --primary-dark: #115E59;
  --primary-light: #2DD4BF;
  --primary-glow: rgba(15, 118, 110, 0.12);
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --accent-light: #FDE68A;
  --bg: #F7FAF9;
  --white: #FFFFFF;
  --dark: #0C2A26;
  --text-1: #1F2937;
  --text-2: #4B5563;
  --text-3: #9CA3AF;
  --border: #E3E8E6;
  --border-light: #EDF2F0;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --shadow-card: 0 2px 8px rgba(12,42,38,0.05);
  --shadow-hover: 0 12px 24px rgba(12,42,38,0.10);
  --shadow-header: 0 4px 16px rgba(12,42,38,0.08);
  --font-main: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Inter","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-main);background:var(--bg);color:var(--text-1);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;display:flex;align-items:center;background:rgba(255,255,255,0.55);backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);border-bottom:1px solid rgba(255,255,255,0.30);transition:all .3s ease}
.site-header.scrolled{background:#FFFFFF;border-bottom:1px solid var(--border);box-shadow:var(--shadow-header)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;width:100%}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;box-shadow:0 4px 10px rgba(15,118,110,0.25)}
.logo-text{font-size:20px;font-weight:800;color:var(--text-1);letter-spacing:.5px;line-height:1.2}
.logo-text span{color:var(--primary);font-weight:600;display:block;font-size:12px;letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{font-size:14px;font-weight:500;color:var(--text-2);padding:8px 2px;position:relative;letter-spacing:.2px}
.nav-link::after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);border-radius:2px;transition:width .25s ease}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;padding:10px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;transition:all .25s ease;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 6px 14px rgba(15,118,110,0.25)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 6px 14px rgba(245,158,11,0.25)}
.btn-outline{background:transparent;border:1.5px solid rgba(255,255,255,0.85);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,0.12);color:#fff;border-color:#fff}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-lg{padding:14px 32px;font-size:16px;border-radius:10px}
.hamburger{display:none;background:none;border:none;font-size:24px;color:var(--text-1);cursor:pointer;padding:6px;border-radius:6px}
.hamburger:hover{background:rgba(15,118,110,0.08);color:var(--primary)}

/* 移动端抽屉菜单 */
.mobile-drawer{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(255,255,255,0.92);backdrop-filter:blur(24px);z-index:999;flex-direction:column;justify-content:center;align-items:center;gap:12px;opacity:0;visibility:hidden;transition:all .3s ease}
.mobile-drawer.open{opacity:1;visibility:visible}
.mobile-drawer a{font-size:24px;font-weight:600;color:var(--text-1);padding:10px 0;border-bottom:1px solid var(--border-light);width:70%;text-align:center}
.mobile-drawer a.active{color:var(--primary)}
.mobile-drawer .drawer-close{position:absolute;top:20px;right:20px;font-size:28px;color:var(--text-2);background:none;border:none;cursor:pointer}
.mobile-drawer .drawer-close:hover{color:var(--primary)}

/* Hero 精简 */
.category-hero{position:relative;padding:190px 0 90px;text-align:center;background:linear-gradient(135deg,rgba(12,42,38,0.82),rgba(15,118,110,0.65)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;border-bottom:4px solid var(--primary)}
.category-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,0.08) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}
.category-hero .hero-inner{position:relative;z-index:2;max-width:800px;margin:0 auto}
.category-hero .hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.24);color:#fff;font-size:13px;font-weight:500;padding:6px 16px;border-radius:100px;margin-bottom:22px;letter-spacing:.5px}
.category-hero h1{font-size:42px;font-weight:800;color:#fff;line-height:1.25;margin-bottom:14px;letter-spacing:.5px}
.category-hero p.hero-sub{font-size:17px;color:rgba(255,255,255,0.85);margin:0 auto;max-width:640px;line-height:1.7}
.category-hero .hero-breadcrumb{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-size:13px;color:rgba(255,255,255,0.65);display:flex;gap:6px;align-items:center}
.category-hero .hero-breadcrumb a{color:rgba(255,255,255,0.9)}
.category-hero .hero-breadcrumb a:hover{color:var(--accent)}

/* 导语区 */
.intro-section{padding:80px 0}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.intro-text .section-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(15,118,110,0.08);color:var(--primary);font-size:13px;font-weight:600;padding:5px 12px;border-radius:6px;margin-bottom:16px;text-transform:uppercase;letter-spacing:.5px}
.intro-text h2{font-size:30px;font-weight:700;line-height:1.35;margin-bottom:16px;color:var(--text-1)}
.intro-text p{color:var(--text-2);margin-bottom:12px}
.intro-text p strong{color:var(--primary);font-weight:600}
.intro-visual{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hover);position:relative}
.intro-visual img{width:100%;height:320px;object-fit:cover}
.intro-visual::after{content:"leyu乐鱼登录入口 · 服务功能总览";position:absolute;left:0;right:0;bottom:0;padding:30px 20px 16px;background:linear-gradient(transparent,rgba(12,42,38,0.75));color:#fff;font-size:15px;font-weight:500;text-align:center}
.feature-points{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.feature-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);background:var(--white);padding:8px 12px;border-radius:8px;border:1px solid var(--border-light)}
.feature-points li i{color:var(--primary);font-size:13px}

/* 功能卡片矩阵 */
.matrix-section{background:linear-gradient(to bottom,var(--bg),#EFF8F6);padding:90px 0}
.section-header{text-align:center;max-width:680px;margin:0 auto 56px}
.section-header .section-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(15,118,110,0.08);color:var(--primary);font-size:13px;font-weight:600;padding:5px 12px;border-radius:6px;margin-bottom:14px;letter-spacing:.5px}
.section-header h2{font-size:32px;font-weight:700;color:var(--text-1);line-height:1.3;margin-bottom:12px}
.section-header p{color:var(--text-2);font-size:15px}
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.matrix-card{background:var(--white);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:28px 24px;transition:all .25s ease;position:relative;overflow:hidden}
.matrix-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--primary);opacity:0;transition:opacity .25s ease}
.matrix-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px);border-color:transparent}
.matrix-card:hover::before{opacity:1}
.matrix-icon{width:48px;height:48px;border-radius:12px;background:rgba(15,118,110,0.08);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px}
.matrix-card h3{font-size:18px;font-weight:600;color:var(--text-1);margin-bottom:8px}
.matrix-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.matrix-card .card-link{margin-top:12px;display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--primary);font-weight:500}
.matrix-card .card-link i{transition:transform .2s ease}
.matrix-card:hover .card-link i{transform:translateX(4px)}

/* 引用信息条 */
.quote-strip{background:var(--dark);padding:64px 0;border-bottom:4px solid var(--primary)}
.quote-strip .quote-inner{display:flex;align-items:center;gap:32px;max-width:960px}
.quote-strip .quote-icon{flex-shrink:0;width:56px;height:56px;border-radius:50%;background:rgba(245,158,11,0.18);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px}
.quote-strip p{font-size:17px;line-height:1.8;color:rgba(255,255,255,0.85);font-weight:400}
.quote-strip p strong{color:var(--accent);font-weight:600}

/* CTA横幅 */
.cta-banner{background:linear-gradient(120deg,var(--primary) 0%,var(--primary-dark) 100%);padding:70px 0;position:relative;overflow:hidden}
.cta-banner::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,0.10) 1px,transparent 1px);background-size:20px 20px}
.cta-banner .cta-inner{position:relative;z-index:2;text-align:center;max-width:640px;margin:0 auto}
.cta-banner h2{font-size:32px;font-weight:800;color:#fff;margin-bottom:10px}
.cta-banner p{font-size:16px;color:rgba(255,255,255,0.85);margin-bottom:28px}
.cta-banner .btn-group{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,0.75);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.footer-brand .logo-text{color:#fff;font-size:20px;font-weight:800}
.footer-brand .logo-text span{color:var(--accent);display:block;font-size:12px;letter-spacing:2px;font-weight:500}
.footer-desc{font-size:14px;line-height:1.7;margin-top:14px;color:rgba(255,255,255,0.60)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(255,255,255,0.65);font-size:14px;display:inline-flex;align-items:center;gap:7px;transition:color .2s ease}
.footer-col ul a:hover{color:var(--accent)}
.footer-col ul a i{font-size:11px;color:var(--accent);opacity:0.7}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,0.65)}
.footer-contact li i{color:var(--accent);margin-top:6px;font-size:13px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.10);padding:24px 0;text-align:center;font-size:14px;color:rgba(255,255,255,0.55)}
.footer-bottom p{margin:0}

/* 响应式 */
@media (max-width:1024px){
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .container{padding:0 24px}
}
@media (max-width:768px){
  .main-nav{display:none}
  .hamburger{display:block}
  .header-actions .btn-primary{display:none}
  .category-hero{padding-top:160px;padding-bottom:80px}
  .category-hero h1{font-size:32px}
  .category-hero p.hero-sub{font-size:15px}
  .matrix-grid{grid-template-columns:1fr}
  .intro-grid{grid-template-columns:1fr}
  .intro-visual img{height:240px}
  .quote-strip .quote-inner{flex-direction:column;text-align:center;gap:20px}
  .footer-grid{grid-template-columns:1fr}
  .cta-banner h2{font-size:26px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .category-hero h1{font-size:27px}
  .category-hero p.hero-sub{font-size:14px}
  .section-header h2{font-size:26px}
  .intro-text h2{font-size:26px}
  .quote-strip p{font-size:15px}
}