/* roulang page: index */
:root {
  --color-primary: #0e1a2b;
  --color-primary-light: #16283d;
  --color-accent: #00c2d4;
  --color-accent-dark: #00a0b3;
  --color-highlight: #ff6b35;
  --color-bg: #f7f9fc;
  --color-surface: #ffffff;
  --color-text: #1a2332;
  --color-text-light: #5b6b7f;
  --color-border: #e8edf4;
  --color-footer-bg: #0a1524;
  --color-footer-text: #93a4b7;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --shadow-sm: 0 2px 10px rgba(14,26,43,0.06);
  --shadow-md: 0 8px 30px rgba(14,26,43,0.1);
  --shadow-lg: 0 20px 60px rgba(14,26,43,0.14);
  --space-section: 96px;
  --space-section-md: 72px;
  --space-section-sm: 56px;
  --container-max: 1200px;
  --header-height: 72px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
button{border:none;background:none;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}
::selection{background:rgba(0,194,212,0.2)}

/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:var(--header-height);
  background:rgba(14,26,43,0.85);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  transition:background 0.3s, box-shadow 0.3s;
}
.site-header.scrolled{
  background:rgba(14,26,43,0.96);
  box-shadow:0 8px 30px rgba(0,0,0,0.25);
}
.header-inner{
  height:var(--header-height);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:700;
  color:#fff;
  letter-spacing:0.5px;
  white-space:nowrap;
}
.brand i{
  color:var(--color-accent);
  font-size:22px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:rgba(255,255,255,0.7);
  transition:all 0.25s;
  position:relative;
}
.nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,0.08);
}
.nav-link.active{
  color:#fff;
  background:rgba(0,194,212,0.18);
}
.nav-link.active::after{
  content:'';
  position:absolute;
  bottom:2px;left:50%;
  transform:translateX(-50%);
  width:16px;height:2px;
  background:var(--color-accent);
  border-radius:2px;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:12px;
}
.btn-header{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 20px;
  border-radius:999px;
  background:var(--color-accent);
  color:#fff;
  font-size:13px;
  font-weight:600;
  transition:all 0.25s;
  box-shadow:0 4px 15px rgba(0,194,212,0.3);
}
.btn-header:hover{
  background:var(--color-accent-dark);
  transform:translateY(-2px);
  box-shadow:0 8px 25px rgba(0,194,212,0.4);
}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  background:rgba(255,255,255,0.08);
  color:#fff;
  font-size:18px;
  align-items:center;
  justify-content:center;
  transition:background 0.25s;
}
.menu-toggle:hover{background:rgba(255,255,255,0.15)}
.mobile-nav{
  display:none;
  position:fixed;
  top:var(--header-height);
  left:0;right:0;
  background:rgba(14,26,43,0.98);
  padding:16px 24px 24px;
  border-bottom:1px solid rgba(255,255,255,0.1);
  border-radius:0 0 20px 20px;
  z-index:99;
  box-shadow:0 20px 40px rgba(0,0,0,0.3);
}
.mobile-nav.open{display:block}
.mobile-nav a{
  display:block;
  padding:13px 16px;
  border-radius:12px;
  color:rgba(255,255,255,0.8);
  font-size:15px;
  font-weight:500;
  margin-bottom:4px;
  transition:all 0.2s;
}
.mobile-nav a:hover{background:rgba(255,255,255,0.08);color:#fff}
.mobile-nav a.active{background:rgba(0,194,212,0.18);color:#fff}

/* ===== Buttons ===== */
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 32px;
  border-radius:999px;
  background:var(--color-accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:all 0.3s;
  box-shadow:0 6px 20px rgba(0,194,212,0.35);
  border:2px solid transparent;
}
.btn-primary:hover{
  background:var(--color-accent-dark);
  transform:translateY(-3px);
  box-shadow:0 12px 35px rgba(0,194,212,0.4);
}
.btn-primary:focus-visible{
  outline:3px solid rgba(0,194,212,0.4);
  outline-offset:3px;
}
.btn-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 32px;
  border-radius:999px;
  background:transparent;
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:all 0.3s;
  border:2px solid rgba(255,255,255,0.3);
}
.btn-secondary:hover{
  background:rgba(255,255,255,0.1);
  border-color:rgba(255,255,255,0.6);
  transform:translateY(-3px);
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 26px;
  border-radius:999px;
  background:transparent;
  color:var(--color-text);
  font-size:14px;
  font-weight:600;
  transition:all 0.25s;
  border:2px solid var(--color-border);
}
.btn-ghost:hover{
  border-color:var(--color-accent);
  color:var(--color-accent-dark);
  background:rgba(0,194,212,0.05);
}

/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:calc(100vh - var(--header-height));
  padding:calc(var(--header-height) + 48px) 0 60px;
  background:var(--color-primary);
  overflow:hidden;
  display:flex;
  align-items:center;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:0.35;
}
.hero-bg::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(100deg, rgba(14,26,43,0.97) 0%, rgba(14,26,43,0.85) 40%, rgba(14,26,43,0.55) 80%, rgba(14,26,43,0.4) 100%);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  align-items:center;
  gap:64px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 18px;
  border-radius:999px;
  background:rgba(0,194,212,0.15);
  border:1px solid rgba(0,194,212,0.35);
  color:var(--color-accent);
  font-size:13px;
  font-weight:600;
  margin-bottom:24px;
  letter-spacing:0.3px;
}
.hero-title{
  font-size:46px;
  line-height:1.25;
  font-weight:800;
  color:#fff;
  margin-bottom:20px;
  letter-spacing:-0.5px;
}
.hero-desc{
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,0.75);
  max-width:540px;
  margin-bottom:34px;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:40px;
}
.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:30px;
  padding-top:28px;
  border-top:1px solid rgba(255,255,255,0.12);
}
.trust-item .trust-num{
  font-size:22px;
  font-weight:700;
  color:#fff;
}
.trust-item .trust-num span{
  color:var(--color-accent);
  font-size:16px;
  margin-left:2px;
}
.trust-item .trust-label{
  font-size:12px;
  color:rgba(255,255,255,0.55);
  letter-spacing:0.5px;
}
.hero-visual{
  position:relative;
}
.hero-visual .main-card{
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,0.4);
  border:1px solid rgba(255,255,255,0.15);
  transform:rotate(1deg);
  transition:transform 0.4s;
}
.hero-visual .main-card:hover{transform:rotate(0deg) scale(1.02)}
.hero-visual .main-card img{
  width:100%;
  height:420px;
  object-fit:cover;
}
.float-card{
  position:absolute;
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(10px);
  border-radius:16px;
  padding:14px 18px;
  box-shadow:0 15px 40px rgba(0,0,0,0.25);
  display:flex;
  align-items:center;
  gap:12px;
  border:1px solid rgba(255,255,255,0.6);
}
.float-card .fc-icon{
  width:38px;height:38px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  color:#fff;
}
.float-card .fc-title{
  font-size:13px;
  font-weight:700;
  color:var(--color-text);
  line-height:1.3;
}
.float-card .fc-sub{
  font-size:11px;
  color:var(--color-text-light);
}
.fc-1{top:30px;left:-20px;animation:floatY 4s ease-in-out infinite}
.fc-2{bottom:60px;right:-15px;animation:floatY 4.5s ease-in-out infinite 0.8s}
.fc-3{bottom:-15px;left:50px;animation:floatY 5s ease-in-out infinite 1.4s}
@keyframes floatY{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

/* ===== Section Common ===== */
.section{padding:var(--space-section) 0}
.section-head{
  text-align:center;
  max-width:680px;
  margin:0 auto 56px;
}
.section-eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:2px;
  text-transform:uppercase;
  color:var(--color-accent-dark);
  margin-bottom:12px;
  background:rgba(0,194,212,0.08);
  padding:6px 16px;
  border-radius:999px;
}
.section-title{
  font-size:34px;
  line-height:1.3;
  font-weight:800;
  color:var(--color-text);
  margin-bottom:16px;
  letter-spacing:-0.3px;
}
.section-sub{
  font-size:16px;
  color:var(--color-text-light);
  line-height:1.8;
}

/* ===== Stats ===== */
.stats-section{
  background:var(--color-surface);
  border-bottom:1px solid var(--color-border);
  padding:50px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-card{
  text-align:center;
  padding:30px 20px;
  border-radius:var(--radius-md);
  background:var(--color-bg);
  border:1px solid var(--color-border);
  transition:all 0.3s;
}
.stat-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:transparent;
  background:#fff;
}
.stat-num{
  font-size:36px;
  font-weight:800;
  color:var(--color-primary);
  line-height:1.2;
}
.stat-num em{
  font-style:normal;
  color:var(--color-accent);
  font-size:22px;
  margin-left:2px;
}
.stat-label{
  font-size:14px;
  color:var(--color-text-light);
  margin-top:6px;
}

/* ===== Services ===== */
.services-section{background:var(--color-bg)}
.service-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
}
.service-card{
  background:var(--color-surface);
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--color-border);
  transition:all 0.35s;
}
.service-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.service-card-img{
  height:200px;
  overflow:hidden;
  position:relative;
}
.service-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.6s;
}
.service-card:hover .service-card-img img{transform:scale(1.06)}
.service-card-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to top, rgba(14,26,43,0.3), transparent 60%);
}
.service-card-body{
  padding:28px 26px 30px;
}
.service-card-icon{
  width:46px;height:46px;
  background:linear-gradient(135deg, var(--color-accent), #00e0d4);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:18px;
  margin-bottom:16px;
  box-shadow:0 6px 18px rgba(0,194,212,0.3);
}
.service-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
  color:var(--color-text);
}
.service-card p{
  font-size:14px;
  color:var(--color-text-light);
  line-height:1.75;
}
.service-card .service-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:13px;
  font-weight:600;
  color:var(--color-accent-dark);
  transition:gap 0.25s;
}
.service-card .service-link:hover{gap:12px}
.service-card .service-link i{font-size:12px}

/* ===== Categories ===== */
.categories-section{
  background:var(--color-primary);
  position:relative;
  overflow:hidden;
}
.categories-section::before{
  content:'';
  position:absolute;
  top:-120px;right:-120px;
  width:300px;height:300px;
  background:rgba(0,194,212,0.08);
  border-radius:50%;
}
.categories-section .section-title{color:#fff}
.categories-section .section-sub{color:rgba(255,255,255,0.6)}
.categories-section .section-eyebrow{color:var(--color-accent);background:rgba(0,194,212,0.12)}
.category-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  position:relative;
}
.category-card{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  text-align:left;
  transition:all 0.35s;
  display:block;
}
.category-card:hover{
  background:rgba(255,255,255,0.1);
  border-color:rgba(0,194,212,0.4);
  transform:translateY(-6px);
  box-shadow:0 20px 50px rgba(0,0,0,0.3);
}
.cat-icon{
  width:52px;height:52px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  margin-bottom:20px;
  background:linear-gradient(135deg, rgba(0,194,212,0.25), rgba(0,194,212,0.1));
  color:var(--color-accent);
  border:1px solid rgba(0,194,212,0.3);
}
.category-card h3{
  font-size:18px;
  font-weight:700;
  color:#fff;
  margin-bottom:8px;
}
.category-card p{
  font-size:14px;
  color:rgba(255,255,255,0.55);
  line-height:1.7;
  margin-bottom:16px;
}
.cat-link{
  font-size:13px;
  font-weight:600;
  color:var(--color-accent);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.cat-link i{font-size:12px;transition:transform 0.25s}
.category-card:hover .cat-link i{transform:translateX(5px)}
.cat-img{
  margin-top:16px;
  border-radius:12px;
  overflow:hidden;
  height:120px;
}
.cat-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.5s;
}
.category-card:hover .cat-img img{transform:scale(1.06)}

/* ===== News ===== */
.news-section{background:var(--color-surface)}
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.news-card{
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  padding:24px;
  transition:all 0.3s;
  display:block;
}
.news-card:hover{
  background:#fff;
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
  border-color:transparent;
}
.news-card-top{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
  flex-wrap:wrap;
}
.news-tag{
  font-size:12px;
  font-weight:600;
  background:rgba(0,194,212,0.1);
  color:var(--color-accent-dark);
  padding:4px 12px;
  border-radius:999px;
}
.news-time{
  font-size:12px;
  color:var(--color-text-light);
  display:flex;
  align-items:center;
  gap:5px;
}
.news-time i{font-size:11px}
.news-card h3{
  font-size:17px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:8px;
  line-height:1.5;
  transition:color 0.2s;
}
.news-card:hover h3{color:var(--color-accent-dark)}
.news-card p{
  font-size:14px;
  color:var(--color-text-light);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-empty{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  color:var(--color-text-light);
  font-size:15px;
}
.news-empty i{
  font-size:36px;
  color:var(--color-border);
  display:block;
  margin-bottom:16px;
}
.news-more{
  text-align:center;
  margin-top:40px;
}

/* ===== Feature ===== */
.feature-section{
  position:relative;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  background-attachment:fixed;
}
.feature-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(120deg, rgba(14,26,43,0.96), rgba(14,26,43,0.82));
}
.feature-content{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.feature-text .section-eyebrow{color:var(--color-accent);background:rgba(0,194,212,0.15)}
.feature-text .section-title{color:#fff}
.feature-text .section-sub{color:rgba(255,255,255,0.65)}
.feature-list{
  margin-top:32px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.feature-item{
  display:flex;
  align-items:flex-start;
  gap:16px;
}
.feature-item-icon{
  width:44px;height:44px;
  min-width:44px;
  border-radius:12px;
  background:rgba(0,194,212,0.15);
  border:1px solid rgba(0,194,212,0.3);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--color-accent);
  font-size:17px;
}
.feature-item h4{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:4px;
}
.feature-item p{
  color:rgba(255,255,255,0.55);
  font-size:14px;
  line-height:1.7;
}
.feature-visual{
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:0 30px 70px rgba(0,0,0,0.4);
  border:1px solid rgba(255,255,255,0.1);
}
.feature-visual img{
  width:100%;
  height:480px;
  object-fit:cover;
}

/* ===== Testimonials ===== */
.testimonials-section{background:var(--color-bg)}
.testimonial-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.testimonial-card{
  background:var(--color-surface);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--color-border);
  transition:all 0.3s;
}
.testimonial-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
}
.testimonial-stars{
  color:#f5b342;
  font-size:14px;
  margin-bottom:16px;
  letter-spacing:2px;
}
.testimonial-text{
  font-size:15px;
  line-height:1.8;
  color:var(--color-text);
  margin-bottom:20px;
}
.testimonial-user{
  display:flex;
  align-items:center;
  gap:12px;
}
.testimonial-avatar{
  width:42px;height:42px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:16px;
  font-weight:700;
}
.testimonial-name{
  font-size:14px;
  font-weight:600;
  color:var(--color-text);
}
.testimonial-role{
  font-size:12px;
  color:var(--color-text-light);
}

/* ===== FAQ ===== */
.faq-section{background:var(--color-surface)}
.faq-container{
  max-width:760px;
  margin:0 auto;
}
.faq-item{
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  margin-bottom:16px;
  overflow:hidden;
  transition:all 0.3s;
}
.faq-item:last-child{margin-bottom:0}
.faq-question{
  padding:22px 24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  cursor:pointer;
  font-size:15px;
  font-weight:600;
  color:var(--color-text);
  transition:background 0.2s;
  width:100%;
  text-align:left;
}
.faq-question:hover{background:rgba(0,194,212,0.04)}
.faq-question i{
  font-size:13px;
  color:var(--color-text-light);
  transition:transform 0.3s;
}
.faq-item.active .faq-question i{transform:rotate(45deg);color:var(--color-accent)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.4s ease;
}
.faq-answer-inner{
  padding:0 24px 24px;
  font-size:14px;
  line-height:1.8;
  color:var(--color-text-light);
  border-top:1px solid var(--color-border);
  padding-top:16px;
}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  padding:100px 0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  text-align:center;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg, rgba(14,26,43,0.94), rgba(14,26,43,0.78));
}
.cta-content{
  position:relative;
  max-width:680px;
  margin:0 auto;
}
.cta-section h2{
  font-size:38px;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:-0.5px;
}
.cta-section p{
  font-size:17px;
  color:rgba(255,255,255,0.7);
  margin-bottom:36px;
  line-height:1.8;
}
.cta-btns{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--color-footer-bg);
  padding:64px 0 0;
  color:var(--color-footer-text);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-brand .brand{
  font-size:22px;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,0.45);
  max-width:280px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,0.5);
  transition:color 0.2s;
}
.footer-col ul a:hover{color:var(--color-accent)}
.footer-contact p{
  font-size:14px;
  line-height:2;
  color:rgba(255,255,255,0.5);
  display:flex;
  align-items:center;
  gap:8px;
}
.footer-contact p i{color:var(--color-accent);width:16px}
.footer-bottom{
  padding:24px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,0.35);
}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:var(--color-accent)}

/* ===== Scrollbar ===== */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--color-bg)}
::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:#c8d3e0}

/* ===== Responsive ===== */
@media (max-width:1024px){
  :root{--space-section:80px}
  .hero-title{font-size:38px}
  .hero-grid{gap:40px}
  .service-grid{gap:24px}
  .category-grid{gap:20px}
  .testimonial-grid{gap:20px}
  .footer-grid{gap:32px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .header-actions .btn-header{display:none}
  .menu-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;padding-top:20px}
  .hero{min-height:auto;padding-top:calc(var(--header-height) + 32px)}
  .hero-visual{margin-top:20px;max-width:520px}
  .hero-visual .main-card img{height:320px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .service-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .category-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .news-grid{grid-template-columns:1fr}
  .feature-content{grid-template-columns:1fr}
  .feature-visual{order:-1}
  .feature-visual img{height:300px}
  .testimonial-grid{grid-template-columns:1fr;max-width:480px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section-title{font-size:28px}
  .hero-title{font-size:34px}
  .float-card{padding:10px 14px}
  .fc-1{left:0}
  .fc-2{right:0}
}
@media (max-width:520px){
  :root{--space-section:60px;--header-height:64px}
  .container{padding:0 18px}
  .hero-title{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-btns .btn-primary,.hero-btns .btn-secondary{padding:12px 24px;font-size:14px;width:100%}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-num{font-size:30px}
  .section-title{font-size:24px}
  .section-sub{font-size:14px}
  .service-card-img{height:160px}
  .footer-grid{grid-template-columns:1fr}
  .footer-contact p{font-size:13px}
  .cta-section h2{font-size:28px}
  .cta-btns .btn-primary,.cta-btns .btn-secondary{width:100%}
}

/* roulang page: article */
:root {
  --primary: #1e3a5f;
  --primary-light: #2d5a8e;
  --accent: #c9a45c;
  --accent-hover: #b8913e;
  --bg: #f7f6f3;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(30,58,95,0.06);
  --shadow-md: 0 6px 30px rgba(30,58,95,0.10);
  --shadow-lg: 0 12px 48px rgba(30,58,95,0.14);
  --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 16px}}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(226,232,240,0.8);
  box-shadow:0 2px 16px rgba(30,58,95,0.04);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:1.25rem;font-weight:800;color:var(--primary);
  letter-spacing:0.5px;white-space:nowrap;
}
.brand i{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-size:1.1rem;
  box-shadow:0 4px 14px rgba(30,58,95,0.25);
  transition:var(--transition);
}
.brand:hover i{transform:rotate(-8deg) scale(1.05)}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:10px 16px;border-radius:10px;
  font-size:0.95rem;font-weight:600;color:var(--text-muted);
  transition:var(--transition);position:relative;
}
.nav-link:hover{color:var(--primary);background:rgba(30,58,95,0.05)}
.nav-link.active{color:var(--primary);background:rgba(30,58,95,0.08)}
.nav-link.active::after{
  content:'';position:absolute;bottom:4px;left:50%;transform:translateX(-50%);
  width:20px;height:3px;border-radius:4px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-nav{
  padding:10px 22px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-weight:600;font-size:0.9rem;
  box-shadow:0 4px 16px rgba(30,58,95,0.2);
  transition:var(--transition);
}
.btn-nav:hover{
  box-shadow:0 6px 24px rgba(30,58,95,0.3);
  transform:translateY(-2px);
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(30,58,95,0.06);color:var(--primary);font-size:1.2rem;
  align-items:center;justify-content:center;
}
@media(max-width:900px){
  .main-nav{
    position:fixed;top:72px;left:0;right:0;
    background:#fff;flex-direction:column;
    padding:16px 24px;gap:4px;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);
    transform:translateY(-120%);opacity:0;pointer-events:none;
    transition:var(--transition);z-index:999;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-toggle{display:flex}
  .nav-link{padding:14px 16px;font-size:1rem}
  .btn-nav{display:none}
}

/* ===== Article Hero ===== */
.article-hero{
  position:relative;overflow:hidden;
  padding:80px 0 72px;
  background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 55%,#2d5a8e 100%);
  color:#fff;
}
.article-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:0.25;
}
.article-hero-bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to bottom,rgba(15,23,42,0.6),rgba(15,23,42,0.3));
}
.article-hero-content{position:relative;z-index:2;max-width:860px}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  margin-bottom:32px;font-size:0.85rem;color:rgba(255,255,255,0.7);
}
.breadcrumb a{color:rgba(255,255,255,0.7)}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-size:0.7rem;color:rgba(255,255,255,0.4)}
.article-hero .category-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:30px;
  background:rgba(201,164,92,0.25);
  border:1px solid rgba(201,164,92,0.4);
  color:#e6c88a;font-size:0.82rem;font-weight:600;
  margin-bottom:18px;
}
.article-hero h1{
  font-size:2.6rem;font-weight:800;line-height:1.3;
  margin-bottom:22px;letter-spacing:-0.02em;
  text-shadow:0 2px 20px rgba(0,0,0,0.2);
}
.article-meta{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  margin-top:10px;font-size:0.9rem;color:rgba(255,255,255,0.75);
}
.article-meta .meta-item{display:flex;align-items:center;gap:8px}
.article-meta .meta-item i{color:var(--accent);font-size:0.85rem}
@media(max-width:768px){
  .article-hero{padding:48px 0 44px}
  .article-hero h1{font-size:1.7rem}
  .article-meta{gap:14px}
}

/* ===== Article Content ===== */
.article-main{padding:64px 0 80px;position:relative}
.article-layout{max-width:860px;margin:0 auto}
.article-content{
  background:#fff;border-radius:var(--radius-lg);
  padding:52px 64px;
  box-shadow:var(--shadow-md);
  border:1px solid rgba(226,232,240,0.6);
  position:relative;
}
.article-content::before{
  content:'';position:absolute;top:0;left:64px;right:64px;
  height:4px;border-radius:4px 4px 0 0;
  background:linear-gradient(90deg,var(--accent),var(--primary-light));
}
.article-content h2{
  font-size:1.7rem;font-weight:700;margin:2rem 0 1rem;
  color:var(--primary);line-height:1.4;
  padding-left:16px;border-left:4px solid var(--accent);
}
.article-content h3{
  font-size:1.3rem;font-weight:700;margin:1.6rem 0 0.8rem;
  color:var(--text);
}
.article-content p{
  margin-bottom:1.2rem;line-height:1.85;color:#334155;font-size:1.05rem;
}
.article-content ul,.article-content ol{
  margin:1rem 0 1.2rem 1.4rem;color:#334155;line-height:1.8;
}
.article-content li{margin-bottom:0.5rem}
.article-content blockquote{
  margin:1.5rem 0;padding:16px 24px;
  background:rgba(201,164,92,0.08);
  border-left:4px solid var(--accent);
  border-radius:0 12px 12px 0;
  color:var(--text);font-style:italic;
}
.article-content img{
  border-radius:var(--radius);box-shadow:var(--shadow-md);
  margin:1.8rem 0;
}
.article-content strong{color:var(--primary);font-weight:700}
.article-content a{color:var(--primary-light);font-weight:600;border-bottom:2px solid rgba(45,90,142,0.2)}
.article-content a:hover{border-bottom-color:var(--primary-light)}
@media(max-width:768px){
  .article-content{padding:32px 24px;border-radius:var(--radius)}
  .article-content::before{left:24px;right:24px}
  .article-content h2{font-size:1.4rem}
  .article-content p{font-size:1rem}
}

/* ===== Not Found ===== */
.not-found{
  text-align:center;padding:60px 24px;
}
.not-found i{
  font-size:3.5rem;color:var(--accent);margin-bottom:18px;
  display:inline-block;
}
.not-found h2{font-size:1.8rem;color:var(--primary);margin-bottom:10px}
.not-found p{color:var(--text-muted);margin-bottom:28px}

/* ===== Button ===== */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 32px;border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-weight:600;font-size:0.95rem;
  box-shadow:0 4px 20px rgba(30,58,95,0.2);
  transition:var(--transition);border:none;cursor:pointer;
}
.btn-primary:hover{
  box-shadow:0 8px 32px rgba(30,58,95,0.3);
  transform:translateY(-2px);
}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 32px;border-radius:14px;
  border:2px solid rgba(255,255,255,0.4);
  color:#fff;font-weight:600;font-size:0.95rem;
  transition:var(--transition);background:transparent;
}
.btn-outline:hover{
  border-color:#fff;background:rgba(255,255,255,0.1);
}

/* ===== Related Section ===== */
.related-section{padding:80px 0;background:#fff}
.related-section .section-head{
  text-align:center;margin-bottom:48px;
}
.related-section .section-head h2{
  font-size:2rem;font-weight:800;color:var(--primary);
  margin-bottom:12px;
}
.related-section .section-head p{color:var(--text-muted);font-size:1rem;max-width:560px;margin:0 auto}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px;
}
.related-card{
  border-radius:var(--radius-lg);overflow:hidden;
  background:#fff;border:1px solid rgba(226,232,240,0.7);
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  display:flex;flex-direction:column;
}
.related-card:hover{
  box-shadow:var(--shadow-lg);transform:translateY(-6px);
  border-color:rgba(201,164,92,0.3);
}
.related-card .card-img{position:relative;aspect-ratio:16/9;overflow:hidden}
.related-card .card-img img{
  width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease;
}
.related-card:hover .card-img img{transform:scale(1.06)}
.related-card .card-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(30,58,95,0.2),transparent);
}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.card-tag{
  display:inline-flex;align-self:flex-start;align-items:center;gap:6px;
  padding:4px 12px;border-radius:20px;
  background:rgba(201,164,92,0.12);color:#a07c35;
  font-size:0.75rem;font-weight:700;margin-bottom:10px;
}
.card-body h3{font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:8px;line-height:1.4}
.card-body p{
  font-size:0.9rem;color:var(--text-muted);line-height:1.65;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:0.88rem;font-weight:600;
  margin-top:14px;
}
.card-link i{font-size:0.75rem;transition:transform 0.3s}
.card-link:hover i{transform:translateX(4px)}
@media(max-width:768px){
  .related-grid{grid-template-columns:1fr;gap:18px}
  .related-section{padding:56px 0}
}

/* ===== FAQ ===== */
.faq-section{padding:80px 0;background:var(--bg)}
.faq-section .section-head{
  text-align:center;margin-bottom:48px;
}
.faq-section .section-head h2{
  font-size:2rem;font-weight:800;color:var(--primary);
  margin-bottom:12px;
}
.faq-section .section-head p{color:var(--text-muted);max-width:560px;margin:0 auto}
.faq-grid{max-width:840px;margin:0 auto;display:grid;gap:16px}
.faq-item{
  background:#fff;border-radius:var(--radius);
  border:1px solid rgba(226,232,240,0.7);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:var(--transition);
}
.faq-item:hover{box-shadow:var(--shadow-md);border-color:rgba(201,164,92,0.3)}
.faq-item summary{
  padding:20px 56px 20px 24px;
  font-weight:600;font-size:1rem;color:var(--text);
  cursor:pointer;position:relative;list-style:none;
  display:flex;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-num{
  width:32px;height:32px;min-width:32px;border-radius:10px;
  background:rgba(30,58,95,0.06);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:0.85rem;font-weight:700;
}
.faq-item summary::after{
  content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:0.85rem;color:var(--text-muted);transition:transform 0.3s;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg)}
.faq-item[open] summary{color:var(--primary)}
.faq-answer{padding:0 24px 22px 68px;color:var(--text-muted);font-size:0.95rem;line-height:1.7}
@media(max-width:768px){
  .faq-section{padding:56px 0}
  .faq-answer{padding:0 20px 18px 20px}
  .faq-item summary{padding:16px 48px 16px 16px}
}

/* ===== CTA ===== */
.cta-section{
  position:relative;overflow:hidden;
  padding:80px 0;
  background:linear-gradient(135deg,#0f172a,#1e3a5f);
  color:#fff;text-align:center;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:0.12;
}
.cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto}
.cta-inner h2{font-size:2.2rem;font-weight:800;margin-bottom:16px;line-height:1.3}
.cta-inner p{font-size:1.05rem;color:rgba(255,255,255,0.8);margin-bottom:36px;line-height:1.7}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
@media(max-width:768px){
  .cta-section{padding:56px 0}
  .cta-inner h2{font-size:1.6rem}
}

/* ===== Footer ===== */
.site-footer{background:#0f172a;color:rgba(255,255,255,0.7);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-brand .brand{
  color:#fff;font-size:1.2rem;margin-bottom:16px;display:inline-flex;
}
.footer-brand .brand i{
  background:rgba(201,164,92,0.2);color:var(--accent);
}
.footer-brand p{font-size:0.9rem;line-height:1.7;margin-top:14px;max-width:320px}
.footer-col h4{
  color:#fff;font-size:1rem;font-weight:600;
  margin-bottom:20px;position:relative;padding-bottom:10px;
}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;
  width:28px;height:3px;border-radius:4px;background:var(--accent);
}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{
  color:rgba(255,255,255,0.7);font-size:0.9rem;
  transition:var(--transition);display:inline-flex;align-items:center;gap:8px;
}
.footer-col ul a::before{
  content:"›";color:var(--accent);font-weight:700;
}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-contact p{
  display:flex;align-items:center;gap:10px;
  font-size:0.9rem;margin-bottom:14px;color:rgba(255,255,255,0.7);
}
.footer-contact p i{color:var(--accent);font-size:0.85rem}
.footer-bottom{
  padding:24px 0;text-align:center;
  font-size:0.85rem;color:rgba(255,255,255,0.5);
}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:#fff}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:100%}
}

/* ===== Section headers ===== */
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:0.82rem;font-weight:700;color:var(--accent);
  text-transform:uppercase;letter-spacing:1.5px;margin-bottom:14px;
}
.section-tag i{font-size:0.75rem}

/* ===== Scrollbar ===== */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg,var(--primary-light),var(--primary));
  border-radius:8px;
}

/* roulang page: category1 */
:root {
      --primary: #0B1F3A;
      --primary-dark: #071528;
      --accent: #E8A33D;
      --accent-hover: #D4922C;
      --bg-light: #F5F7FA;
      --text-main: #1A1D23;
      --text-muted: #6B7280;
      --border-light: #E5E7EB;
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 8px;
      --shadow-card: 0 8px 30px rgba(0,0,0,0.06);
      --shadow-hover: 0 14px 40px rgba(0,0,0,0.14);
      --transition: all 0.3s ease;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
      background: var(--bg-light);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    .container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; display: block; }
    button { font-family: inherit; cursor: pointer; }

    /* 滚动条 */
    ::-webkit-scrollbar { width: 8px; height: 8px; }
    ::-webkit-scrollbar-track { background: #f1f1f1; }
    ::-webkit-scrollbar-thumb { background: #c8cdd4; border-radius: 8px; }

    /* 头部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(0,0,0,0.05);
      transition: box-shadow 0.3s ease;
    }
    .site-header.scrolled { box-shadow: 0 6px 24px rgba(0,0,0,0.08); }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 16px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      white-space: nowrap;
    }
    .brand i { color: var(--accent); font-size: 22px; }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .nav-link {
      display: inline-block;
      padding: 8px 16px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: var(--transition);
      position: relative;
    }
    .nav-link:hover { color: var(--primary); background: rgba(11,31,58,0.05); }
    .nav-link.active { color: var(--primary); font-weight: 600; }
    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 2px;
      height: 2px;
      background: var(--accent);
      border-radius: 4px;
    }
    .header-actions { display: flex; align-items: center; gap: 10px; }
    .header-btn {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      background: rgba(11,31,58,0.04);
      border: none;
      color: var(--primary);
      font-size: 15px;
      transition: var(--transition);
    }
    .header-btn:hover { background: rgba(11,31,58,0.1); color: var(--accent); }
    .mobile-toggle {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      background: rgba(11,31,58,0.04);
      border: none;
      font-size: 18px;
      color: var(--primary);
    }

    /* 移动端抽屉菜单 */
    .mobile-menu {
      position: fixed;
      top: 0;
      right: -280px;
      width: 280px;
      height: 100vh;
      background: #fff;
      z-index: 200;
      box-shadow: -10px 0 40px rgba(0,0,0,0.12);
      transition: right 0.38s ease;
      display: flex;
      flex-direction: column;
      padding-top: 88px;
      padding-left: 28px;
      padding-right: 28px;
    }
    .mobile-menu.open { right: 0; }
    .mobile-menu .nav-link {
      display: block;
      padding: 14px 0;
      font-size: 17px;
      border-bottom: 1px solid #f0f0f0;
      border-radius: 0;
    }
    .mobile-menu .nav-link.active { color: var(--accent); }
    .mobile-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.35);
      z-index: 150;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
    }
    .mobile-overlay.open { opacity: 1; visibility: visible; }
    .mobile-close {
      position: absolute;
      top: 20px;
      right: 20px;
      width: 36px;
      height: 36px;
      border: none;
      background: #f5f5f5;
      border-radius: 8px;
      font-size: 16px;
      color: var(--text-main);
    }

    /* Hero */
    .hero-section {
      position: relative;
      min-height: 580px;
      display: flex;
      align-items: center;
      overflow: hidden;
      background: var(--primary-dark);
    }
    .hero-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: 0.55;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(7,21,40,0.92) 0%, rgba(11,31,58,0.6) 46%, rgba(232,163,61,0.18) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      padding-top: 72px;
      padding-bottom: 72px;
      max-width: 720px;
      margin-left: 0;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(232,163,61,0.18);
      border: 1px solid rgba(232,163,61,0.35);
      color: #f0c37a;
      font-size: 13px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 30px;
      margin-bottom: 22px;
      letter-spacing: 0.5px;
    }
    .hero-title {
      font-size: 46px;
      line-height: 1.25;
      font-weight: 800;
      color: #fff;
      margin-bottom: 20px;
    }
    .hero-title span {
      color: var(--accent);
      position: relative;
    }
    .hero-sub {
      font-size: 17px;
      color: rgba(255,255,255,0.78);
      margin-bottom: 32px;
      line-height: 1.75;
      max-width: 560px;
    }
    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }
    .btn-primary {
      background: var(--accent);
      color: var(--primary-dark);
      font-weight: 600;
      font-size: 15px;
      padding: 13px 30px;
      border-radius: 12px;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: none;
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(232,163,61,0.3);
    }
    .btn-ghost {
      background: transparent;
      color: rgba(255,255,255,0.92);
      font-weight: 500;
      font-size: 15px;
      padding: 13px 30px;
      border-radius: 12px;
      border: 1.5px solid rgba(255,255,255,0.35);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-ghost:hover {
      background: rgba(255,255,255,0.1);
      border-color: rgba(255,255,255,0.7);
      transform: translateY(-2px);
    }

    /* 区块 */
    .section-pad { padding: 88px 0; }
    .section-pad-sm { padding: 60px 0; }
    .section-head {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 52px;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(232,163,61,0.1);
      padding: 5px 16px;
      border-radius: 30px;
      margin-bottom: 16px;
      letter-spacing: 1px;
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 数据栏 */
    .stats-bar {
      background: var(--primary);
      border-radius: var(--radius-lg);
      padding: 40px 36px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: -56px;
      position: relative;
      z-index: 5;
      box-shadow: 0 18px 50px rgba(7,21,40,0.25);
    }
    .stat-item { text-align: center; padding: 12px 8px; }
    .stat-num {
      font-size: 38px;
      font-weight: 800;
      color: #fff;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .stat-num i {
      font-size: 28px;
      color: var(--accent);
      margin-right: 4px;
    }
    .stat-label { font-size: 14px; color: rgba(255,255,255,0.65); }

    /* 卡片网格 */
    .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

    .card {
      background: #fff;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      border: 1px solid rgba(0,0,0,0.03);
    }
    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .card-img-wrap { position: relative; overflow: hidden; aspect-ratio: 16/10; }
    .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
    .card:hover .card-img-wrap img { transform: scale(1.06); }
    .card-img-overlay {
      position: absolute;
      top: 14px;
      left: 14px;
    }
    .img-badge {
      background: rgba(255,255,255,0.94);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 20px;
      box-shadow: 0 4px 14px rgba(0,0,0,0.08);
    }
    .card-body { padding: 24px; }
    .card-title { font-size: 19px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
    .card-text { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
    .card-link {
      color: var(--accent);
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap 0.3s ease;
    }
    .card-link:hover { gap: 12px; }

    /* 流程 */
    .flow-wrap {
      position: relative;
      padding-top: 20px;
    }
    .flow-line {
      position: absolute;
      top: 60px;
      left: 6%;
      right: 6%;
      height: 2px;
      background: linear-gradient(90deg, rgba(232,163,61,0.1), var(--accent) 40%, var(--accent) 60%, rgba(232,163,61,0.1));
      border-radius: 4px;
    }
    .flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 1; }
    .flow-item { text-align: center; }
    .flow-icon {
      width: 72px;
      height: 72px;
      margin: 0 auto 18px;
      background: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: var(--accent);
      box-shadow: 0 8px 30px rgba(11,31,58,0.12);
      border: 2px solid rgba(232,163,61,0.2);
    }
    .flow-step {
      display: inline-block;
      background: var(--primary);
      color: #fff;
      font-size: 12px;
      padding: 2px 12px;
      border-radius: 16px;
      margin-bottom: 8px;
    }
    .flow-title { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
    .flow-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

    /* FAQ */
    .faq-wrap {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: #fff;
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      box-shadow: var(--shadow-card);
      overflow: hidden;
      border: 1px solid rgba(0,0,0,0.03);
      transition: box-shadow 0.3s ease;
    }
    .faq-item.active { box-shadow: 0 10px 30px rgba(11,31,58,0.1); }
    .faq-q {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      text-align: left;
    }
    .faq-q i {
      color: var(--accent);
      font-size: 14px;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }
    .faq-item.active .faq-q i { transform: rotate(180deg); }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.38s ease, padding 0.3s ease;
      padding: 0 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .faq-item.active .faq-a {
      max-height: 360px;
      padding: 0 24px 22px;
    }

    /* CTA */
    .cta-section {
      background: var(--primary);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      top: -40%;
      right: -20%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(232,163,61,0.12), transparent 70%);
    }
    .cta-title { font-size: 30px; font-weight: 800; color: #fff; margin-bottom: 14px; }
    .cta-desc { font-size: 16px; color: rgba(255,255,255,0.7); max-width: 520px; margin: 0 auto 28px; }

    /* Footer */
    .site-footer {
      background: #fff;
      border-top: 1px solid #eee;
      padding-top: 64px;
      padding-bottom: 24px;
      margin-top: 20px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand p { font-size: 14px; color: var(--text-muted); margin-top: 14px; line-height: 1.7; }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .footer-col ul { list-style: none; }
    .footer-col li { margin-bottom: 10px; }
    .footer-col a {
      font-size: 14px;
      color: var(--text-muted);
      transition: var(--transition);
    }
    .footer-col a:hover { color: var(--accent); padding-left: 4px; }
    .footer-contact p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .footer-contact i { color: var(--accent); margin-right: 8px; width: 16px; }
    .footer-bottom {
      border-top: 1px solid #f0f0f0;
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #999;
    }
    .footer-bottom a { color: var(--accent); }

    /* 焦点样式 */
    a:focus, button:focus {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    /* 移动端响应式 */
    @media (max-width: 1024px) {
      .main-nav { display: none; }
      .mobile-toggle { display: flex; }
      .hero-title { font-size: 38px; }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .stats-bar { grid-template-columns: repeat(2, 1fr); margin-top: -40px; }
      .flow-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
      .flow-line { display: none; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    }
    @media (max-width: 768px) {
      .section-pad { padding: 64px 0; }
      .section-title { font-size: 28px; }
      .grid-3 { grid-template-columns: repeat(2, 1fr); gap: 16px; }
      .grid-2 { grid-template-columns: 1fr; }
      .hero-section { min-height: 500px; }
      .hero-title { font-size: 32px; }
      .hero-sub { font-size: 15px; }
      .cta-section { padding: 48px 24px; }
      .cta-title { font-size: 24px; }
    }
    @media (max-width: 560px) {
      .container { padding: 0 16px; }
      .grid-4 { grid-template-columns: 1fr; }
      .grid-3 { grid-template-columns: 1fr; }
      .stats-bar { grid-template-columns: 1fr 1fr; padding: 28px 16px; gap: 12px; }
      .stat-num { font-size: 28px; }
      .hero-title { font-size: 28px; }
      .hero-btns { flex-direction: column; width: 100%; }
      .btn-primary, .btn-ghost { justify-content: center; }
      .flow-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    }

/* roulang page: category2 */
:root{
    --brand:#1e5aff;
    --brand-dark:#1747cf;
    --accent:#f59e0b;
    --ink:#0f172a;
    --ink-soft:#475569;
    --ink-faint:#94a3b8;
    --bg:#ffffff;
    --bg-mist:#f4f7fb;
    --border:#e8edf4;
    --radius:1.25rem;
    --shadow:0 8px 30px rgba(15,23,42,.06);
    --shadow-lift:0 16px 40px rgba(15,23,42,.12);
  }
  *{ margin:0; padding:0; box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  body{ font-family:'Inter','PingFang SC','Microsoft YaHei',sans-serif; background:var(--bg); color:var(--ink); line-height:1.65; -webkit-font-smoothing:antialiased; }
  a{ text-decoration:none; color:inherit; }
  img{ display:block; max-width:100%; height:auto; }
  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 24px; }
  .section{ padding:88px 0; }
  .section-mist{ background:var(--bg-mist); }
  .section-tag{ display:inline-flex; align-items:center; gap:8px; font-size:13px; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color:var(--brand); background:var(--brand-50,#eef4ff); border-radius:999px; padding:8px 18px; }
  .section-title{ font-size:34px; line-height:1.25; font-weight:800; color:var(--ink); letter-spacing:-.02em; margin-top:18px; }
  .section-sub{ font-size:17px; line-height:1.8; color:var(--ink-soft); margin-top:12px; max-width:700px; }
  .site-header{ position:sticky; top:0; z-index:50; background:rgba(255,255,255,.92); backdrop-filter:blur(12px); border-bottom:1px solid var(--border); }
  .header-inner{ display:flex; align-items:center; justify-content:space-between; height:76px; gap:24px; }
  .brand{ display:inline-flex; align-items:center; gap:10px; font-size:20px; font-weight:800; color:var(--ink); letter-spacing:-.01em; }
  .brand i{ color:var(--brand); font-size:20px; }
  .main-nav{ display:flex; align-items:center; gap:4px; background:var(--bg-mist); border:1px solid var(--border); border-radius:999px; padding:4px; }
  .nav-link{ display:inline-block; padding:9px 18px; border-radius:999px; font-size:14px; font-weight:600; color:var(--ink-soft); transition:all .25s ease; white-space:nowrap; }
  .nav-link:hover{ color:var(--brand); background:#fff; box-shadow:0 2px 8px rgba(15,23,42,.06); }
  .nav-link.active{ color:#fff; background:var(--brand); box-shadow:0 4px 14px rgba(30,90,255,.28); }
  .header-actions{ display:flex; align-items:center; gap:14px; }
  .header-cta{ display:inline-flex; align-items:center; gap:8px; padding:10px 20px; border-radius:999px; font-size:14px; font-weight:700; color:#fff; background:var(--ink); transition:all .25s ease; white-space:nowrap; }
  .header-cta:hover{ background:var(--brand); box-shadow:0 8px 20px rgba(30,90,255,.25); transform:translateY(-1px); }
  .menu-toggle{ display:none; width:42px; height:42px; border-radius:12px; border:1px solid var(--border); background:#fff; color:var(--ink); font-size:18px; align-items:center; justify-content:center; cursor:pointer; transition:all .2s ease; }
  .menu-toggle:hover{ border-color:var(--brand); color:var(--brand); }
  .btn-primary{ display:inline-flex; align-items:center; gap:10px; padding:14px 28px; border-radius:999px; background:var(--brand); color:#fff; font-size:15px; font-weight:700; border:none; cursor:pointer; transition:all .28s ease; box-shadow:0 8px 24px rgba(30,90,255,.22); }
  .btn-primary:hover{ background:var(--brand-dark); box-shadow:0 12px 32px rgba(30,90,255,.32); transform:translateY(-2px); }
  .btn-secondary{ display:inline-flex; align-items:center; gap:10px; padding:14px 28px; border-radius:999px; background:#fff; color:var(--ink); font-size:15px; font-weight:700; border:1px solid var(--border); cursor:pointer; transition:all .28s ease; }
  .btn-secondary:hover{ border-color:var(--brand); color:var(--brand); box-shadow:var(--shadow); transform:translateY(-2px); }
  .hero{ position:relative; min-height:560px; display:flex; align-items:center; background:linear-gradient(135deg,#0b1f56 0%,#1747cf 55%,#1e5aff 100%); color:#fff; overflow:hidden; }
  .hero-bg{ position:absolute; inset:0; background-image:url('/assets/images/backpic/back-2.webp'); background-size:cover; background-position:center; opacity:.28; }
  .hero-overlay{ position:absolute; inset:0; background:linear-gradient(110deg,rgba(11,31,86,.96) 30%,rgba(23,71,207,.65) 70%,rgba(30,90,255,.25) 100%); }
  .hero-inner{ position:relative; z-index:2; display:grid; grid-template-columns:1.15fr .85fr; gap:48px; align-items:center; padding:72px 0; }
  .hero-badge{ display:inline-flex; align-items:center; gap:8px; background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.22); border-radius:999px; padding:8px 18px; font-size:13px; font-weight:600; letter-spacing:.06em; color:#fff; backdrop-filter:blur(6px); }
  .hero-title{ font-size:46px; line-height:1.15; font-weight:800; letter-spacing:-.03em; margin-top:22px; }
  .hero-title span{ color:#fbbf24; }
  .hero-text{ font-size:17px; line-height:1.9; color:rgba(255,255,255,.85); margin-top:18px; max-width:540px; }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:32px; }
  .hero-note{ display:flex; align-items:center; gap:10px; margin-top:22px; font-size:13px; color:rgba(255,255,255,.6); }
  .hero-art{ position:relative; }
  .hero-card{ background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.18); border-radius:24px; padding:28px; backdrop-filter:blur(10px); box-shadow:0 20px 50px rgba(0,0,0,.2); }
  .hero-card-top{ display:flex; align-items:center; justify-content:space-between; }
  .hero-card-title{ font-size:16px; font-weight:700; color:#fff; }
  .hero-card-status{ font-size:12px; color:#bbf7d0; background:rgba(34,197,94,.2); padding:4px 12px; border-radius:999px; }
  .hero-card-list{ margin-top:20px; display:flex; flex-direction:column; gap:14px; }
  .hero-card-item{ display:flex; align-items:center; gap:12px; background:rgba(255,255,255,.08); border-radius:12px; padding:12px 16px; font-size:14px; color:rgba(255,255,255,.9); }
  .hero-card-item i{ width:30px; height:30px; display:flex; align-items:center; justify-content:center; border-radius:8px; background:rgba(255,255,255,.16); font-size:13px; color:#fbbf24; flex-shrink:0; }
  .feature-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:48px; }
  .feature-card{ background:#fff; border:1px solid var(--border); border-radius:var(--radius); padding:28px 24px; transition:all .3s ease; position:relative; overflow:hidden; }
  .feature-card::before{ content:''; position:absolute; top:0; left:0; right:0; height:3px; background:var(--brand); opacity:0; transition:opacity .3s ease; }
  .feature-card:hover{ box-shadow:var(--shadow-lift); transform:translateY(-6px); border-color:transparent; }
  .feature-card:hover::before{ opacity:1; }
  .feature-icon{ width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; font-size:20px; background:var(--brand-50,#eef4ff); color:var(--brand); margin-bottom:16px; }
  .feature-card h3{ font-size:17px; font-weight:700; color:var(--ink); }
  .feature-card p{ font-size:14px; line-height:1.75; color:var(--ink-soft); margin-top:8px; }
  .feature-tag{ position:absolute; top:18px; right:18px; font-size:11px; font-weight:600; color:var(--ink-faint); background:var(--bg-mist); padding:4px 10px; border-radius:999px; }
  .process-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:52px; position:relative; }
  .process-step{ position:relative; text-align:center; padding:0 12px; }
  .process-num{ width:68px; height:68px; margin:0 auto; border-radius:50%; display:flex; align-items:center; justify-content:center; background:#fff; border:2px solid var(--brand); color:var(--brand); font-size:20px; font-weight:800; position:relative; z-index:2; box-shadow:0 0 0 6px rgba(30,90,255,.08); transition:all .3s ease; }
  .process-step:hover .process-num{ background:var(--brand); color:#fff; box-shadow:0 0 0 8px rgba(30,90,255,.12); transform:scale(1.05); }
  .process-step-title{ font-size:15px; font-weight:700; margin-top:18px; color:var(--ink); }
  .process-step-text{ font-size:13px; line-height:1.7; color:var(--ink-soft); margin-top:6px; }
  .process-line{ position:absolute; top:34px; left:12%; right:12%; height:2px; background:linear-gradient(90deg,var(--brand),#93b4ff); z-index:1; border-radius:2px; }
  .scenario-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:48px; }
  .scenario-card{ border-radius:var(--radius); overflow:hidden; background:#fff; border:1px solid var(--border); transition:all .3s ease; }
  .scenario-card:hover{ box-shadow:var(--shadow-lift); transform:translateY(-6px); }
  .scenario-card img{ width:100%; height:190px; object-fit:cover; }
  .scenario-body{ padding:24px; }
  .scenario-body h3{ font-size:17px; font-weight:700; color:var(--ink); display:flex; align-items:center; gap:8px; }
  .scenario-body h3 i{ color:var(--brand); font-size:15px; }
  .scenario-body p{ font-size:14px; line-height:1.75; color:var(--ink-soft); margin-top:8px; }
  .feature-list{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; margin-top:44px; }
  .feature-list-item{ display:flex; gap:16px; background:#fff; border:1px solid var(--border); border-radius:16px; padding:22px 24px; transition:all .25s ease; }
  .feature-list-item:hover{ box-shadow:var(--shadow); border-color:transparent; }
  .feature-list-icon{ width:44px; height:44px; border-radius:12px; background:var(--brand-50,#eef4ff); color:var(--brand); display:flex; align-items:center; justify-content:center; font-size:17px; flex-shrink:0; }
  .feature-list-item h4{ font-size:15px; font-weight:700; color:var(--ink); }
  .feature-list-item p{ font-size:13px; line-height:1.7; color:var(--ink-soft); margin-top:4px; }
  .faq-wrap{ max-width:880px; margin:48px auto 0; }
  .faq-item{ background:#fff; border:1px solid var(--border); border-radius:16px; margin-bottom:14px; overflow:hidden; transition:all .3s ease; }
  .faq-item:hover{ border-color:#c9d8ff; }
  .faq-item.active{ box-shadow:var(--shadow); border-color:var(--brand); }
  .faq-question{ width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:20px 24px; font-size:15px; font-weight:700; color:var(--ink); cursor:pointer; background:none; border:none; text-align:left; transition:color .2s ease; }
  .faq-question:hover{ color:var(--brand); }
  .faq-question i{ font-size:14px; color:var(--ink-faint); transition:transform .3s ease, color .3s ease; flex-shrink:0; }
  .faq-item.active .faq-question{ color:var(--brand); }
  .faq-item.active .faq-question i{ transform:rotate(180deg); color:var(--brand); }
  .faq-answer{ max-height:0; overflow:hidden; transition:max-height .35s ease; }
  .faq-answer-inner{ padding:0 24px 22px; font-size:14px; line-height:1.85; color:var(--ink-soft); }
  .cta-section{ position:relative; background:linear-gradient(120deg,#0b1f56,#1747cf 60%,#1e5aff); border-radius:28px; overflow:hidden; padding:64px 56px; margin:88px 0; box-shadow:0 24px 60px rgba(30,90,255,.25); }
  .cta-section::after{ content:''; position:absolute; right:-60px; bottom:-60px; width:260px; height:260px; border-radius:50%; background:rgba(255,255,255,.08); }
  .cta-section::before{ content:''; position:absolute; right:60px; bottom:-100px; width:200px; height:200px; border-radius:50%; background:rgba(251,191,36,.15); }
  .cta-content{ position:relative; z-index:2; display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap; }
  .cta-title{ font-size:30px; font-weight:800; color:#fff; line-height:1.3; }
  .cta-text{ font-size:15px; line-height:1.8; color:rgba(255,255,255,.85); margin-top:10px; max-width:520px; }
  .cta-buttons{ display:flex; gap:14px; flex-wrap:wrap; }
  .cta-btn-light{ display:inline-flex; align-items:center; gap:8px; padding:14px 28px; border-radius:999px; background:#fff; color:var(--brand-dark); font-size:15px; font-weight:700; transition:all .25s ease; }
  .cta-btn-light:hover{ background:#fbbf24; color:#0b1f56; transform:translateY(-2px); box-shadow:0 12px 28px rgba(0,0,0,.15); }
  .cta-btn-ghost{ display:inline-flex; align-items:center; gap:8px; padding:14px 28px; border-radius:999px; background:transparent; color:#fff; font-size:15px; font-weight:700; border:1px solid rgba(255,255,255,.35); transition:all .25s ease; }
  .cta-btn-ghost:hover{ border-color:#fff; background:rgba(255,255,255,.1); }
  .site-footer{ background:#0b1f56; color:rgba(255,255,255,.75); padding:68px 0 24px; margin-top:120px; }
  .footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.1); }
  .footer-brand .brand{ color:#fff; font-size:20px; }
  .footer-brand .brand i{ color:#fbbf24; }
  .footer-brand p{ font-size:13px; line-height:1.8; margin-top:14px; color:rgba(255,255,255,.6); max-width:300px; }
  .footer-col h4{ font-size:14px; font-weight:700; color:#fff; margin-bottom:18px; letter-spacing:.04em; }
  .footer-col ul{ list-style:none; display:flex; flex-direction:column; gap:10px; }
  .footer-col ul a{ font-size:13px; color:rgba(255,255,255,.6); transition:color .2s ease; }
  .footer-col ul a:hover{ color:#fbbf24; }
  .footer-contact p{ display:flex; align-items:center; gap:10px; font-size:13px; color:rgba(255,255,255,.6); margin-bottom:10px; }
  .footer-contact p i{ color:#fbbf24; font-size:13px; width:16px; }
  .footer-bottom{ display:flex; align-items:center; justify-content:space-between; gap:12px; padding-top:24px; font-size:13px; color:rgba(255,255,255,.5); flex-wrap:wrap; }
  .footer-bottom a{ color:rgba(255,255,255,.6); transition:color .2s ease; }
  .footer-bottom a:hover{ color:#fbbf24; }
  @media (max-width:1024px){
    .container{ padding:0 20px; }
    .section{ padding:70px 0; }
    .hero-inner{ grid-template-columns:1fr; padding:56px 0; }
    .hero-art{ display:none; }
    .hero-title{ font-size:38px; }
    .feature-grid{ grid-template-columns:repeat(2,1fr); }
    .process-grid{ grid-template-columns:repeat(2,1fr); gap:32px; }
    .process-line{ display:none; }
    .scenario-grid{ grid-template-columns:repeat(2,1fr); }
    .footer-grid{ grid-template-columns:1fr 1fr; }
  }
  @media (max-width:768px){
    .header-inner{ height:64px; }
    .main-nav{ position:fixed; top:64px; left:20px; right:20px; background:#fff; border:1px solid var(--border); border-radius:16px; box-shadow:var(--shadow-lift); flex-direction:column; align-items:stretch; padding:8px; display:none; z-index:60; }
    .main-nav.open{ display:flex; }
    .nav-link{ text-align:center; padding:12px; border-radius:12px; }
    .nav-link.active{ background:var(--brand); color:#fff; }
    .header-cta{ display:none; }
    .menu-toggle{ display:flex; }
    .hero{ min-height:auto; }
    .hero-inner{ padding:48px 0; }
    .hero-title{ font-size:32px; }
    .hero-text{ font-size:15px; }
    .section-title{ font-size:28px; }
    .section-sub{ font-size:15px; }
    .feature-grid{ grid-template-columns:1fr; }
    .process-grid{ grid-template-columns:1fr; }
    .scenario-grid{ grid-template-columns:1fr; }
    .feature-list{ grid-template-columns:1fr; }
    .cta-section{ padding:40px 28px; margin:60px 0; border-radius:20px; }
    .cta-title{ font-size:24px; }
    .footer-grid{ grid-template-columns:1fr; gap:32px; padding-bottom:32px; }
    .footer-bottom{ flex-direction:column; text-align:center; }
  }
  @media (max-width:520px){
    .section{ padding:56px 0; }
    .hero-badge{ font-size:12px; }
    .hero-title{ font-size:27px; }
    .hero-actions .btn-primary,.hero-actions .btn-secondary{ width:100%; justify-content:center; }
    .section-title{ font-size:24px; }
    .brand span{ font-size:17px; }
    .footer-contact p{ font-size:12px; }
  }

/* roulang page: category3 */
:root {
      --primary: #0f766e;
      --primary-dark: #115e59;
      --secondary: #14b8a6;
      --accent: #f59e0b;
      --bg-dark: #0f172a;
      --bg-light: #f0fdfa;
      --text-dark: #1e293b;
      --text-muted: #64748b;
      --border: #e2e8f0;
      --radius-lg: 20px;
      --radius-md: 14px;
      --shadow-card: 0 10px 30px -6px rgba(15, 118, 110, 0.12);
      --shadow-hover: 0 20px 40px -10px rgba(15, 118, 110, 0.22);
    }
    html { scroll-behavior: smooth; }
    body { font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif; color: var(--text-dark); background: #fff; line-height: 1.7; }
    .container-custom { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    .main-nav { display: flex; gap: 8px; align-items: center; }
    .nav-link { position: relative; padding: 8px 16px; border-radius: 999px; font-weight: 500; font-size: 15px; color: var(--text-muted); transition: all .25s ease; }
    .nav-link:hover { color: var(--primary); background: rgba(15, 118, 110, .08); }
    .nav-link.active { color: #fff; background: var(--primary); box-shadow: 0 4px 14px -2px rgba(15,118,110,.4); }
    .hero-section { position: relative; background: linear-gradient(135deg, #0f172a 0%, #134e4a 60%, #0f766e 100%); overflow: hidden; min-height: 520px; display: flex; align-items: center; }
    .hero-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.webp'); background-size: cover; background-position: center; opacity: .25; }
    .hero-content { position: relative; z-index: 2; }
    .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.25); color: #ccfbf1; padding: 6px 18px; border-radius: 999px; font-size: 13px; letter-spacing: .5px; }
    .hero-title { font-size: clamp(38px, 5vw, 58px); font-weight: 800; line-height: 1.15; color: #fff; letter-spacing: -1px; }
    .hero-desc { font-size: 17px; color: rgba(255,255,255,.85); max-width: 620px; line-height: 1.8; }
    .btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: #0f172a; font-weight: 600; padding: 12px 28px; border-radius: 999px; transition: all .25s ease; box-shadow: 0 4px 16px -2px rgba(245,158,11,.4); }
    .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 22px -2px rgba(245,158,11,.5); }
    .btn-outline { display: inline-flex; align-items: center; gap: 8px; border: 1.5px solid rgba(255,255,255,.6); color: #fff; font-weight: 500; padding: 11px 24px; border-radius: 999px; transition: all .25s ease; }
    .btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }
    .section-header { text-align: left; margin-bottom: 40px; }
    .section-tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 1px; color: var(--primary); background: rgba(15,118,110,.08); padding: 5px 14px; border-radius: 999px; margin-bottom: 12px; }
    .section-title { font-size: 32px; font-weight: 700; color: var(--text-dark); line-height: 1.3; letter-spacing: -.5px; }
    .section-sub { font-size: 15px; color: var(--text-muted); max-width: 640px; margin-top: 8px; }
    .feature-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 28px; transition: all .3s ease; box-shadow: var(--shadow-card); }
    .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(15,118,110,.3); }
    .feature-icon { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; border-radius: 16px; font-size: 22px; background: rgba(15,118,110,.08); color: var(--primary); margin-bottom: 20px; }
    .event-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: #fff; border: 1px solid var(--border); transition: all .35s ease; box-shadow: var(--shadow-card); }
    .event-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
    .event-card img { width: 100%; height: 220px; object-fit: cover; display: block; transition: transform .5s ease; }
    .event-card:hover img { transform: scale(1.05); }
    .event-tag { position: absolute; top: 16px; left: 16px; background: rgba(15,118,110,.9); color: #fff; font-size: 12px; padding: 4px 12px; border-radius: 999px; font-weight: 500; backdrop-filter: blur(4px); }
    .step-item { position: relative; padding: 28px 24px; background: #fff; border-radius: var(--radius-md); border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: all .3s ease; }
    .step-item:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); }
    .step-num { width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; background: var(--primary); color: #fff; font-weight: 700; border-radius: 12px; font-size: 18px; margin-bottom: 14px; }
    .faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px 28px; transition: all .25s ease; }
    .faq-item:hover { border-color: rgba(15,118,110,.35); box-shadow: var(--shadow-card); }
    .cta-section { position: relative; background: linear-gradient(135deg, #0f172a, #134e4a); border-radius: var(--radius-lg); overflow: hidden; padding: 64px 48px; }
    .cta-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; opacity: .2; }
    .footer-link { color: #94a3b8; transition: color .2s ease; }
    .footer-link:hover { color: #fff; }
    .stat-number { font-size: 40px; font-weight: 800; color: var(--primary); line-height: 1.2; }
    @media (max-width: 768px) {
      .nav-link { font-size: 14px; padding: 6px 12px; }
      .section-title { font-size: 26px; }
      .cta-section { padding: 40px 24px; }
    }
    @media (max-width: 520px) {
      .main-nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
      .nav-link { white-space: nowrap; }
      .hero-title { font-size: 32px; }
    }